Description Of STM32L0 HAL And Low Layer Drivers Manual

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User Manual
Description of STM32L0 HAL and Low Layer drivers
Introduction
STMCubeTM is STMicroelectronics's original initiative to ease developers' life by reducing development
efforts, time and cost. STM32Cube covers the STM32 portfolio.
STM32Cube Version 1.x includes:
The STM32CubeMX, a graphical software configuration tool that allows generating C initialization
code using graphical wizards.
A comprehensive embedded software platform, delivered per series (such as STM32CubeL0
forSTM32L0 Series)
The STM32Cube Hardware Abstraction Layer (HAL), an STM32 abstraction layer embedded
software ensuring maximized portability across the STM32 portfolio. The HAL is available for
all peripherals.
The Low Layer APIs (LL) offering a fast light-weight expert-oriented layer which is closer to the
hardware than the HAL. The LL APIs are available only for a set of peripherals.
A consistent set of middleware components such as RTOS, USB.
All embedded software utilities coming with a full set of examples.
The HAL driver layer provides a generic multi-instance simple set of APIs (application programming
interfaces) to interact with the upper layer (application, libraries and stacks).
The HAL driver APIs are split into two categories: generic APIs which provide common and generic
functions for all the STM32 series and extension APIs which include specific and customized functions
for a given line or part number. The HAL drivers include a complete set of ready-to-use APIs which
simplify the user application implementation. As an example, the communication peripherals contain
APIs to initialize and configure the peripheral, manage data transfers in polling mode, handle interrupts
or DMA, and manage communication errors.
The HAL drivers are feature-oriented instead of IP-oriented. As an example, the timer APIs are split into
several categories following the IP functions: basic timer, capture, pulse width modulation (PWM), etc..
The HAL driver layer implements run-time failure detection by checking the input values of all functions.
Such dynamic checking contributes to enhance the firmware robustness. Run-time detection is also
suitable for user application development and debugging.
The LL drivers offer hardware services based on the available features of the STM32 peripherals. These
services reflect exactly the hardware capabilities and provide atomic operations that must be called
following the programming model described in the product line reference manual. As a result, the LL
services are not based on standalone processes and do not require any additional memory resources to
save their states, counter or data pointers: all operations are performed by changing the associated
peripheral registers content. Contrary to the HAL, the LL APIs are not provided for peripherals for which
optimized access is not a key feature, or for those requiring heavy software configuration and/or
complex upper level stack (such as USB).
The HAL and LL are complementary and cover a wide range of applications requirements:
The HAL offers high-level and feature-oriented APIs, with a high-portability level. They hide the
MCU and peripheral complexity to end-user.
The LL offers low-level APIs at registers level, with better optimization but less portability. They
require deep knowledge of the MCU and peripherals specifications.
The source code of HAL and LL drivers is developed in Strict ANSI-C which makes it independent from
the development tools. It is checked with CodeSonar™ static analysis tool. It is fully documented and is
MISRA-C 2004 compliant.
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Contents
1 Acronyms and definitions ............................................................. 25
2 Overview of HAL drivers ............................................................... 27
2.1 HAL and user-application files......................................................... 27
2.1.1 HAL driver files ................................................................................. 27
2.1.2 User-application files ........................................................................ 28
2.2 HAL data structures ........................................................................ 30
2.2.1 Peripheral handle structures ............................................................ 30
2.2.2 Initialization and configuration structure ........................................... 31
2.2.3 Specific process structures .............................................................. 31
2.3 API classification ............................................................................. 32
2.4 Devices supported by HAL drivers .................................................. 33
2.5 HAL driver rules .............................................................................. 37
2.5.1 HAL API naming rules ...................................................................... 37
2.5.2 HAL general naming rules ................................................................ 38
2.5.3 HAL interrupt handler and callback functions ................................... 39
2.6 HAL generic APIs ............................................................................ 39
2.7 HAL extension APIs ........................................................................ 41
2.7.1 HAL extension model overview ........................................................ 41
2.7.2 HAL extension model cases ............................................................. 41
2.8 File inclusion model ......................................................................... 43
2.9 HAL common resources .................................................................. 44
2.10 HAL configuration ............................................................................ 45
2.11 HAL system peripheral handling ..................................................... 46
2.11.1 Clock ................................................................................................. 46
2.11.2 GPIOs ............................................................................................... 46
2.11.3 Cortex NVIC and SysTick timer ........................................................ 48
2.11.4 PWR ................................................................................................. 49
2.11.5 EXTI .................................................................................................. 49
2.11.6 DMA .................................................................................................. 50
2.12 How to use HAL drivers .................................................................. 52
2.12.1 HAL usage models ........................................................................... 52
2.12.2 HAL initialization ............................................................................... 53
2.12.3 HAL IO operation process ................................................................ 55
2.12.4 Timeout and error management ....................................................... 58
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3 Overview of Low Layer drivers ..................................................... 62
3.1 Low Layer files ................................................................................ 62
3.2 Overview of Low Layer APIs and naming rules ............................... 64
3.2.1 Peripheral initialization functions ...................................................... 64
3.2.2 Register-level peripheral configuration functions ............................. 67
4 Cohabiting of HAL and LL ............................................................ 70
4.1 Low Layer driver used in standalone mode ..................................... 70
4.2 Mixed use of Low Layer APIs and HAL drivers ............................... 70
5 HAL System Driver ........................................................................ 71
5.1 HAL Firmware driver API description .............................................. 71
5.1.1 How to use this driver ....................................................................... 71
5.1.2 Initialization and de-initialization functions ....................................... 71
5.1.3 HAL Control functions....................................................................... 71
5.1.4 Detailed description of functions ...................................................... 72
5.2 HAL Firmware driver defines ........................................................... 77
5.2.1 HAL ................................................................................................... 77
6 HAL ADC Generic Driver ............................................................... 83
6.1 ADC Firmware driver registers structures ....................................... 83
6.1.1 ADC_OversamplingTypeDef ............................................................ 83
6.1.2 ADC_InitTypeDef .............................................................................. 83
6.1.3 ADC_ChannelConfTypeDef ............................................................. 86
6.1.4 ADC_AnalogWDGConfTypeDef ....................................................... 86
6.1.5 ADC_HandleTypeDef ....................................................................... 87
6.2 ADC Firmware driver API description .............................................. 87
6.2.1 ADC peripheral features ................................................................... 87
6.2.2 How to use this driver ....................................................................... 88
6.2.3 Peripheral Control functions ............................................................. 90
6.2.4 Peripheral state and errors functions ............................................... 90
6.2.5 Detailed description of functions ...................................................... 90
6.3 ADC Firmware driver defines .......................................................... 97
6.3.1 ADC .................................................................................................. 97
7 HAL ADC Extension Driver ......................................................... 110
7.1 ADCEx Firmware driver API description ....................................... 110
7.1.1 IO operation functions .................................................................... 110
7.1.2 Detailed description of functions .................................................... 110
7.2 ADCEx Firmware driver defines .................................................... 112
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7.2.1 ADCEx ............................................................................................ 112
8 HAL COMP Generic Driver .......................................................... 113
8.1 COMP Firmware driver registers structures .................................. 113
8.1.1 COMP_InitTypeDef ........................................................................ 113
8.1.2 COMP_HandleTypeDef .................................................................. 113
8.2 COMP Firmware driver API description ........................................ 114
8.2.1 COMP Peripheral features ............................................................. 114
8.2.2 How to use this driver ..................................................................... 114
8.2.3 Initialization and de-initialization functions ..................................... 115
8.2.4 IO operation functions .................................................................... 115
8.2.5 Peripheral Control functions ........................................................... 115
8.2.6 Peripheral State functions .............................................................. 115
8.2.7 Detailed description of functions .................................................... 116
8.3 COMP Firmware driver defines ..................................................... 118
8.3.1 COMP ............................................................................................. 118
9 HAL COMP Extension Driver ...................................................... 127
9.1 COMPEx Firmware driver API description .................................... 127
9.1.1 COMP peripheral Extended features ............................................. 127
9.1.2 Detailed description of functions .................................................... 127
10 HAL CORTEX Generic Driver ...................................................... 128
10.1 CORTEX Firmware driver registers structures .............................. 128
10.1.1 MPU_Region_InitTypeDef .............................................................. 128
10.2 CORTEX Firmware driver API description .................................... 129
10.2.1 How to use this driver ..................................................................... 129
10.2.2 Initialization and de-initialization functions ..................................... 129
10.2.3 Peripheral Control functions ........................................................... 130
10.2.4 Detailed description of functions .................................................... 130
10.3 CORTEX Firmware driver defines ................................................. 133
10.3.1 CORTEX ......................................................................................... 133
11 HAL CRC Generic Driver ............................................................. 136
11.1 CRC Firmware driver registers structures ..................................... 136
11.1.1 CRC_InitTypeDef ........................................................................... 136
11.1.2 CRC_HandleTypeDef ..................................................................... 137
11.2 CRC Firmware driver API description ........................................... 137
11.2.1 Initialization and de-initialization functions ..................................... 137
11.2.2 Peripheral Control functions ........................................................... 137
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11.2.3 Peripheral State functions .............................................................. 138
11.2.4 Detailed description of functions .................................................... 138
11.3 CRC Firmware driver defines ........................................................ 140
11.3.1 CRC ................................................................................................ 140
12 HAL CRC Extension Driver ......................................................... 142
12.1 CRCEx Firmware driver API description ....................................... 142
12.1.1 CRC Extended features functions .................................................. 142
12.1.2 Detailed description of functions .................................................... 142
12.2 CRCEx Firmware driver defines .................................................... 143
12.2.1 CRCEx ............................................................................................ 143
13 HAL CRYP Generic Driver ........................................................... 145
13.1 CRYP Firmware driver registers structures ................................... 145
13.1.1 CRYP_InitTypeDef ......................................................................... 145
13.1.2 CRYP_HandleTypeDef................................................................... 145
13.2 CRYP Firmware driver API description ......................................... 146
13.2.1 Initialization and de-initialization functions ..................................... 146
13.2.2 AES processing functions .............................................................. 146
13.2.3 CRYP IRQ handler management ................................................... 147
13.2.4 Peripheral State functions .............................................................. 147
13.2.5 DMA callback functions .................................................................. 147
13.2.6 Detailed description of functions .................................................... 147
13.3 CRYP Firmware driver defines ...................................................... 155
13.3.1 CRYP .............................................................................................. 155
14 HAL CRYP Extension Driver ....................................................... 159
14.1 CRYPEx Firmware driver API description ..................................... 159
14.1.1 Extended features functions ........................................................... 159
14.1.2 Detailed description of functions .................................................... 159
15 HAL DAC Generic Driver ............................................................. 160
15.1 DAC Firmware driver registers structures ..................................... 160
15.1.1 DAC_HandleTypeDef ..................................................................... 160
15.1.2 DAC_ChannelConfTypeDef ........................................................... 160
15.2 DAC Firmware driver API description ............................................ 161
15.2.1 DAC Peripheral features................................................................. 161
15.2.2 How to use this driver ..................................................................... 162
15.2.3 Initialization and de-initialization functions ..................................... 163
15.2.4 IO operation functions .................................................................... 163
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15.2.5 Peripheral Control functions ........................................................... 164
15.2.6 Peripheral State and Errors functions ............................................ 164
15.2.7 Detailed description of functions .................................................... 164
15.3 DAC Firmware driver defines ........................................................ 169
15.3.1 DAC ................................................................................................ 169
16 HAL DAC Extension Driver ......................................................... 172
16.1 DACEx Firmware driver API description ....................................... 172
16.1.1 How to use this driver ..................................................................... 172
16.1.2 Detailed description of functions .................................................... 172
16.2 DACEx Firmware driver defines .................................................... 175
16.2.1 DACEx ............................................................................................ 175
17 HAL DMA Generic Driver ............................................................ 177
17.1 DMA Firmware driver registers structures ..................................... 177
17.1.1 DMA_InitTypeDef ........................................................................... 177
17.1.2 __DMA_HandleTypeDef................................................................. 178
17.2 DMA Firmware driver API description ........................................... 178
17.2.1 Initialization and de-initialization functions ..................................... 178
17.2.2 Peripheral State functions .............................................................. 179
17.2.3 IO operation functions .................................................................... 179
17.2.4 Detailed description of functions .................................................... 179
17.3 DMA Firmware driver defines ........................................................ 182
17.3.1 DMA ................................................................................................ 182
18 HAL FIREWALL Generic Driver .................................................. 189
18.1 FIREWALL Firmware driver registers structures ........................... 189
18.1.1 FIREWALL_InitTypeDef ................................................................. 189
18.2 FIREWALL Firmware driver API description ................................. 189
18.2.1 How to use this driver ..................................................................... 189
18.2.2 Initialization and Configuration functions ........................................ 190
18.2.3 Detailed description of functions .................................................... 190
18.3 FIREWALL Firmware driver defines .............................................. 192
18.3.1 FIREWALL ...................................................................................... 192
19 HAL FLASH Generic Driver ......................................................... 197
19.1 FLASH Firmware driver registers structures ................................. 197
19.1.1 FLASH_ProcessTypeDef ............................................................... 197
19.2 FLASH Firmware driver API description ........................................ 197
19.2.1 FLASH peripheral features ............................................................. 197
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19.2.2 How to use this driver ..................................................................... 198
19.2.3 Programming operation functions .................................................. 199
19.2.4 Option Bytes Programming functions ............................................. 199
19.2.5 Peripheral Control functions ........................................................... 199
19.2.6 Peripheral Errors functions ............................................................. 200
19.2.7 Detailed description of functions .................................................... 200
19.3 FLASH Firmware driver defines .................................................... 202
19.3.1 FLASH ............................................................................................ 202
20 HAL FLASH Extension Driver ..................................................... 206
20.1 FLASHEx Firmware driver registers structures ............................. 206
20.1.1 FLASH_EraseInitTypeDef .............................................................. 206
20.1.2 FLASH_OBProgramInitTypeDef .................................................... 206
20.1.3 FLASH_AdvOBProgramInitTypeDef .............................................. 207
20.2 FLASHEx Firmware driver API description.................................... 207
20.2.1 FLASH Erasing Programming functions ......................................... 207
20.2.2 Option Bytes Programming functions ............................................. 208
20.2.3 DATA EEPROM Programming functions ....................................... 208
20.2.4 Detailed description of functions .................................................... 209
20.3 FLASHEx Firmware driver defines ................................................ 212
20.3.1 FLASHEx ........................................................................................ 212
21 HAL FLASH__RAMFUNC Generic Driver ................................... 220
21.1 FLASH__RAMFUNC Firmware driver API description .................. 220
21.1.1 Peripheral errors functions ............................................................. 220
21.1.2 Detailed description of functions .................................................... 220
22 HAL GPIO Generic Driver............................................................ 223
22.1 GPIO Firmware driver registers structures .................................... 223
22.1.1 GPIO_InitTypeDef .......................................................................... 223
22.2 GPIO Firmware driver API description .......................................... 223
22.2.1 GPIO Peripheral features ............................................................... 223
22.2.2 How to use this driver ..................................................................... 224
22.2.3 Initialization and de-initialization functions ..................................... 224
22.2.4 IO operation functions .................................................................... 224
22.2.5 Detailed description of functions .................................................... 225
22.3 GPIO Firmware driver defines ....................................................... 227
22.3.1 GPIO ............................................................................................... 227
23 HAL GPIO Extension Driver ........................................................ 231
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23.1 GPIOEx Firmware driver defines ................................................... 231
23.1.1 GPIOEx .......................................................................................... 231
24 HAL I2C Generic Driver ............................................................... 233
24.1 I2C Firmware driver registers structures ....................................... 233
24.1.1 I2C_InitTypeDef .............................................................................. 233
24.1.2 __I2C_HandleTypeDef ................................................................... 233
24.2 I2C Firmware driver API description .............................................. 234
24.2.1 How to use this driver ..................................................................... 234
24.2.2 Initialization and de-initialization functions ..................................... 239
24.2.3 IO operation functions .................................................................... 239
24.2.4 Peripheral State, Mode and Error functions ................................... 241
24.2.5 Detailed description of functions .................................................... 241
24.3 I2C Firmware driver defines .......................................................... 253
24.3.1 I2C .................................................................................................. 253
25 HAL I2C Extension Driver ........................................................... 259
25.1 I2CEx Firmware driver API description ......................................... 259
25.1.1 I2C peripheral Extended features ................................................... 259
25.1.2 How to use this driver ..................................................................... 259
25.1.3 Extended features functions ........................................................... 259
25.1.4 Detailed description of functions .................................................... 259
25.2 I2CEx Firmware driver defines ...................................................... 261
25.2.1 I2CEx .............................................................................................. 261
26 HAL I2S Generic Driver ............................................................... 262
26.1 I2S Firmware driver registers structures ....................................... 262
26.1.1 I2S_InitTypeDef .............................................................................. 262
26.1.2 I2S_HandleTypeDef ....................................................................... 262
26.2 I2S Firmware driver API description .............................................. 263
26.2.1 How to use this driver ..................................................................... 263
26.2.2 Initialization and de-initialization functions ..................................... 265
26.2.3 IO operation functions .................................................................... 265
26.2.4 Peripheral State and Errors functions ............................................ 266
26.2.5 Detailed description of functions .................................................... 266
26.3 I2S Firmware driver defines .......................................................... 272
26.3.1 I2S .................................................................................................. 272
27 HAL IRDA Generic Driver ............................................................ 276
27.1 IRDA Firmware driver registers structures .................................... 276
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27.1.1 IRDA_InitTypeDef ........................................................................... 276
27.1.2 IRDA_HandleTypeDef .................................................................... 276
27.2 IRDA Firmware driver API description ........................................... 277
27.2.1 How to use this driver ..................................................................... 277
27.2.2 Initialization and Configuration functions ........................................ 279
27.2.3 IO operation functions .................................................................... 279
27.2.4 Peripheral State and Error functions .............................................. 282
27.2.5 Detailed description of functions .................................................... 282
27.3 IRDA Firmware driver defines ....................................................... 291
27.3.1 IRDA ............................................................................................... 291
28 HAL IRDA Extension Driver ........................................................ 299
28.1 IRDAEx Firmware driver defines ................................................... 299
28.1.1 IRDAEx ........................................................................................... 299
29 HAL IWDG Generic Driver ........................................................... 300
29.1 IWDG Firmware driver registers structures ................................... 300
29.1.1 IWDG_InitTypeDef ......................................................................... 300
29.1.2 IWDG_HandleTypeDef ................................................................... 300
29.2 IWDG Firmware driver API description ......................................... 300
29.2.1 IWDG Generic features .................................................................. 300
29.2.2 How to use this driver ..................................................................... 301
29.2.3 Initialization and Start functions ...................................................... 301
29.2.4 IO operation functions .................................................................... 301
29.2.5 Detailed description of functions .................................................... 302
29.3 IWDG Firmware driver defines ...................................................... 302
29.3.1 IWDG .............................................................................................. 302
30 HAL LCD Generic Driver ............................................................. 304
30.1 LCD Firmware driver registers structures ...................................... 304
30.1.1 LCD_InitTypeDef ............................................................................ 304
30.1.2 LCD_HandleTypeDef ..................................................................... 305
30.2 LCD Firmware driver API description ............................................ 305
30.2.1 How to use this driver ..................................................................... 305
30.2.2 Initialization and Configuration functions ........................................ 306
30.2.3 IO operation functions .................................................................... 306
30.2.4 Peripheral State functions .............................................................. 306
30.2.5 Detailed description of functions .................................................... 306
30.3 LCD Firmware driver defines......................................................... 309
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30.3.1 LCD................................................................................................. 309
31 HAL LPTIM Generic Driver .......................................................... 319
31.1 LPTIM Firmware driver registers structures .................................. 319
31.1.1 LPTIM_ClockConfigTypeDef .......................................................... 319
31.1.2 LPTIM_ULPClockConfigTypeDef ................................................... 319
31.1.3 LPTIM_TriggerConfigTypeDef ....................................................... 319
31.1.4 LPTIM_InitTypeDef ......................................................................... 320
31.1.5 LPTIM_HandleTypeDef .................................................................. 320
31.2 LPTIM Firmware driver API description ......................................... 321
31.2.1 Initialization and de-initialization functions ..................................... 321
31.2.2 LPTIM Start Stop operation functions ............................................ 321
31.2.3 LPTIM Read operation functions .................................................... 322
31.2.4 LPTIM IRQ handler ......................................................................... 322
31.2.5 Peripheral State functions .............................................................. 322
31.2.6 Detailed description of functions .................................................... 322
31.3 LPTIM Firmware driver defines ..................................................... 331
31.3.1 LPTIM ............................................................................................. 331
32 HAL PCD Generic Driver ............................................................. 340
32.1 PCD Firmware driver registers structures ..................................... 340
32.1.1 PCD_InitTypeDef ............................................................................ 340
32.1.2 PCD_EPTypeDef ............................................................................ 340
32.1.3 PCD_HandleTypeDef ..................................................................... 341
32.2 PCD Firmware driver API description ............................................ 342
32.2.1 How to use this driver ..................................................................... 342
32.2.2 Initialization and de-initialization functions ..................................... 343
32.2.3 IO operation functions .................................................................... 343
32.2.4 Peripheral Control functions ........................................................... 343
32.2.5 Peripheral State functions .............................................................. 344
32.2.6 Detailed description of functions .................................................... 344
32.3 PCD Firmware driver defines ........................................................ 350
32.3.1 PCD ................................................................................................ 350
33 HAL PCD Extension Driver ......................................................... 359
33.1 PCDEx Firmware driver API description ....................................... 359
33.1.1 Peripheral extended features functions .......................................... 359
33.1.2 Detailed description of functions .................................................... 359
34 HAL PWR Generic Driver ............................................................ 362
34.1 PWR Firmware driver registers structures .................................... 362
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34.1.1 PWR_PVDTypeDef ........................................................................ 362
34.2 PWR Firmware driver API description ........................................... 362
34.2.1 Initialization and de-initialization functions ..................................... 362
34.2.2 Peripheral Control functions ........................................................... 362
34.2.3 Detailed description of functions .................................................... 366
34.3 PWR Firmware driver defines ....................................................... 370
34.3.1 PWR ............................................................................................... 370
35 HAL PWR Extension Driver ........................................................ 376
35.1 PWREx Firmware driver defines ................................................... 376
35.1.1 PWREx ........................................................................................... 376
36 HAL RCC Generic Driver ............................................................. 377
36.1 RCC Firmware driver registers structures ..................................... 377
36.1.1 RCC_PLLInitTypeDef ..................................................................... 377
36.1.2 RCC_OscInitTypeDef ..................................................................... 377
36.1.3 RCC_ClkInitTypeDef ...................................................................... 378
36.2 RCC Firmware driver API description ........................................... 378
36.2.1 RCC specific features ..................................................................... 378
36.2.2 RCC Limitations .............................................................................. 379
36.2.3 Initialization and de-initialization functions ..................................... 379
36.2.4 Peripheral Control functions ........................................................... 380
36.2.5 Detailed description of functions .................................................... 380
36.3 RCC Firmware driver defines ........................................................ 385
36.3.1 RCC ................................................................................................ 385
37 HAL RCC Extension Driver ......................................................... 406
37.1 RCCEx Firmware driver registers structures ................................. 406
37.1.1 RCC_PeriphCLKInitTypeDef .......................................................... 406
37.1.2 RCC_CRSInitTypeDef .................................................................... 407
37.1.3 RCC_CRSSynchroInfoTypeDef ..................................................... 407
37.2 RCCEx Firmware driver API description ....................................... 408
37.2.1 Extended Peripheral Control functions ........................................... 408
37.2.2 Extended Clock Recovery System Control functions ..................... 408
37.2.3 Detailed description of functions .................................................... 409
37.3 RCCEx Firmware driver defines .................................................... 413
37.3.1 RCCEx ............................................................................................ 413
38 HAL RNG Generic Driver............................................................. 440
38.1 RNG Firmware driver registers structures ..................................... 440
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38.1.1 RNG_HandleTypeDef..................................................................... 440
38.2 RNG Firmware driver API description ........................................... 440
38.2.1 How to use this driver ..................................................................... 440
38.2.2 Initialization and de-initialization functions ..................................... 440
38.2.3 Peripheral Control functions ........................................................... 441
38.2.4 Peripheral State functions .............................................................. 441
38.2.5 Detailed description of functions .................................................... 441
38.3 RNG Firmware driver defines ........................................................ 444
38.3.1 RNG ................................................................................................ 444
39 HAL RTC Generic Driver ............................................................. 447
39.1 RTC Firmware driver registers structures ..................................... 447
39.1.1 RTC_InitTypeDef ............................................................................ 447
39.1.2 RTC_TimeTypeDef ......................................................................... 447
39.1.3 RTC_DateTypeDef ......................................................................... 448
39.1.4 RTC_AlarmTypeDef ....................................................................... 449
39.1.5 RTC_HandleTypeDef ..................................................................... 449
39.2 RTC Firmware driver API description ............................................ 450
39.2.1 Backup Domain Operating Condition ............................................. 450
39.2.2 Backup Domain Reset .................................................................... 450
39.2.3 Backup Domain Access.................................................................. 450
39.2.4 How to use RTC Driver................................................................... 450
39.2.5 RTC and low power modes ............................................................ 450
39.2.6 Initialization and de-initialization functions ..................................... 451
39.2.7 RTC Time and Date functions ........................................................ 451
39.2.8 RTC Alarm functions ...................................................................... 451
39.2.9 Peripheral Control functions ........................................................... 452
39.2.10 Peripheral State functions .............................................................. 452
39.2.11 Detailed description of functions .................................................... 452
39.3 RTC Firmware driver defines ........................................................ 457
39.3.1 RTC ................................................................................................ 457
40 HAL RTC Extension Driver ......................................................... 468
40.1 RTCEx Firmware driver registers structures ................................. 468
40.1.1 RTC_TamperTypeDef .................................................................... 468
40.2 RTCEx Firmware driver API description ........................................ 469
40.2.1 RTC TimeStamp and Tamper functions ......................................... 469
40.2.2 RTC Wake-up functions ................................................................. 469
40.2.3 Extended Peripheral Control functions ........................................... 469
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40.2.4 Extended features functions ........................................................... 470
40.2.5 Detailed description of functions .................................................... 470
40.3 RTCEx Firmware driver defines .................................................... 479
40.3.1 RTCEx ............................................................................................ 479
41 HAL SMARTCARD Generic Driver .............................................. 497
41.1 SMARTCARD Firmware driver registers structures ...................... 497
41.1.1 SMARTCARD_InitTypeDef ............................................................ 497
41.1.2 SMARTCARD_AdvFeatureInitTypeDef .......................................... 498
41.1.3 SMARTCARD_HandleTypeDef ...................................................... 499
41.2 SMARTCARD Firmware driver API description ............................. 500
41.2.1 How to use this driver ..................................................................... 500
41.2.2 Initialization and Configuration functions ........................................ 502
41.2.3 IO operation functions .................................................................... 502
41.2.4 Peripheral State and Errors functions ............................................ 505
41.2.5 Detailed description of functions .................................................... 505
41.3 SMARTCARD Firmware driver defines ......................................... 512
41.3.1 SMARTCARD ................................................................................. 512
42 HAL SMARTCARD Extension Driver .......................................... 523
42.1 SMARTCARDEx Firmware driver API description ........................ 523
42.1.1 SMARTCARD peripheral extended features .................................. 523
42.1.2 Peripheral Control functions ........................................................... 523
42.1.3 Detailed description of functions .................................................... 523
43 HAL SMBUS Generic Driver ........................................................ 525
43.1 SMBUS Firmware driver registers structures ................................ 525
43.1.1 SMBUS_InitTypeDef ...................................................................... 525
43.1.2 SMBUS_HandleTypeDef ................................................................ 526
43.2 SMBUS Firmware driver API description ...................................... 526
43.2.1 How to use this driver ..................................................................... 526
43.2.2 Initialization and de-initialization functions ..................................... 528
43.2.3 IO operation functions .................................................................... 529
43.2.4 Peripheral State and Errors functions ............................................ 529
43.2.5 Detailed description of functions .................................................... 530
43.3 SMBUS Firmware driver defines ................................................... 536
43.3.1 SMBUS ........................................................................................... 536
44 HAL SPI Generic Driver ............................................................... 543
44.1 SPI Firmware driver registers structures ....................................... 543
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44.1.1 SPI_InitTypeDef ............................................................................. 543
44.1.2 __SPI_HandleTypeDef ................................................................... 544
44.2 SPI Firmware driver API description ............................................. 545
44.2.1 How to use this driver ..................................................................... 545
44.2.2 Initialization and de-initialization functions ..................................... 545
44.2.3 IO operation functions .................................................................... 546
44.2.4 Peripheral State and Errors functions ............................................ 547
44.2.5 Detailed description of functions .................................................... 547
44.3 SPI Firmware driver defines .......................................................... 553
44.3.1 SPI .................................................................................................. 553
45 HAL TIM Generic Driver .............................................................. 559
45.1 TIM Firmware driver registers structures ....................................... 559
45.1.1 TIM_Base_InitTypeDef ................................................................... 559
45.1.2 TIM_OC_InitTypeDef ...................................................................... 559
45.1.3 TIM_OnePulse_InitTypeDef ........................................................... 559
45.1.4 TIM_IC_InitTypeDef ....................................................................... 560
45.1.5 TIM_Encoder_InitTypeDef ............................................................. 560
45.1.6 TIM_ClockConfigTypeDef .............................................................. 561
45.1.7 TIM_ClearInputConfigTypeDef ....................................................... 562
45.1.8 TIM_SlaveConfigTypeDef .............................................................. 562
45.1.9 TIM_HandleTypeDef ...................................................................... 562
45.2 TIM Firmware driver API description ............................................. 563
45.2.1 TIMER Generic features ................................................................. 563
45.2.2 How to use this driver ..................................................................... 563
45.2.3 Timer Base functions ...................................................................... 564
45.2.4 Peripheral State functions .............................................................. 564
45.2.5 Detailed description of functions .................................................... 565
45.3 TIM Firmware driver defines.......................................................... 588
45.3.1 TIM .................................................................................................. 588
46 HAL TIM Extension Driver ........................................................... 601
46.1 TIMEx Firmware driver registers structures................................... 601
46.1.1 TIM_MasterConfigTypeDef ............................................................ 601
46.2 TIMEx Firmware driver API description ......................................... 601
46.2.1 TIM specific features integration .................................................... 601
46.2.2 How to use this driver ..................................................................... 601
46.2.3 Peripheral Control functions ........................................................... 601
46.2.4 Detailed description of functions .................................................... 602
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46.3 TIMEx Firmware driver defines ..................................................... 602
46.3.1 TIMEx ............................................................................................. 602
47 HAL TSC Generic Driver ............................................................. 605
47.1 TSC Firmware driver registers structures ...................................... 605
47.1.1 TSC_InitTypeDef ............................................................................ 605
47.1.2 TSC_IOConfigTypeDef................................................................... 606
47.1.3 TSC_HandleTypeDef ..................................................................... 606
47.2 TSC Firmware driver API description ............................................ 606
47.2.1 TSC specific features ..................................................................... 606
47.2.2 How to use this driver ..................................................................... 607
47.2.3 IO Operation functions.................................................................... 607
47.2.4 Peripheral Control functions ........................................................... 608
47.2.5 State functions ................................................................................ 608
47.2.6 Initialization and de-initialization functions ..................................... 608
47.2.7 Detailed description of functions .................................................... 608
47.3 TSC Firmware driver defines......................................................... 612
47.3.1 TSC................................................................................................. 612
48 HAL UART Generic Driver ........................................................... 621
48.1 UART Firmware driver registers structures ................................... 621
48.1.1 UART_InitTypeDef ......................................................................... 621
48.1.2 UART_AdvFeatureInitTypeDef ....................................................... 622
48.1.3 UART_HandleTypeDef ................................................................... 622
48.2 UART Firmware driver API description ......................................... 624
48.2.1 How to use this driver ..................................................................... 624
48.2.2 Initialization and Configuration functions ........................................ 625
48.2.3 IO operation functions .................................................................... 625
48.2.4 Peripheral Control functions ........................................................... 626
48.2.5 Peripheral State and Error functions .............................................. 626
48.2.6 Detailed description of functions .................................................... 626
48.3 UART Firmware driver defines ...................................................... 637
48.3.1 UART .............................................................................................. 637
49 HAL UART Extension Driver ....................................................... 652
49.1 UARTEx Firmware driver registers structures ............................... 652
49.1.1 UART_WakeUpTypeDef ................................................................ 652
49.2 UARTEx Firmware driver API description ..................................... 652
49.2.1 UART peripheral extended features ............................................... 652
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49.2.2 Initialization and Configuration functions ........................................ 652
49.2.3 Peripheral Control functions ........................................................... 653
49.2.4 Detailed description of functions .................................................... 653
49.3 UARTEx Firmware driver defines .................................................. 655
49.3.1 UARTEx .......................................................................................... 655
50 HAL USART Generic Driver ........................................................ 657
50.1 USART Firmware driver registers structures ................................. 657
50.1.1 USART_InitTypeDef ....................................................................... 657
50.1.2 USART_HandleTypeDef ................................................................ 657
50.2 USART Firmware driver API description ....................................... 658
50.2.1 How to use this driver ..................................................................... 658
50.2.2 Initialization and Configuration functions ........................................ 659
50.2.3 IO operation functions .................................................................... 660
50.2.4 Peripheral State and Error functions .............................................. 662
50.2.5 Detailed description of functions .................................................... 662
50.3 USART Firmware driver defines .................................................... 670
50.3.1 USART............................................................................................ 670
51 HAL USART Extension Driver .................................................... 678
51.1 USARTEx Firmware driver defines ............................................... 678
51.1.1 USARTEx ....................................................................................... 678
52 HAL WWDG Generic Driver ........................................................ 679
52.1 WWDG Firmware driver registers structures ................................. 679
52.1.1 WWDG_InitTypeDef ....................................................................... 679
52.1.2 WWDG_HandleTypeDef ................................................................ 679
52.2 WWDG Firmware driver API description ....................................... 679
52.2.1 WWDG specific features ................................................................ 679
52.2.2 How to use this driver ..................................................................... 680
52.2.3 Initialization and Configuration functions ........................................ 680
52.2.4 IO operation functions .................................................................... 681
52.2.5 Detailed description of functions .................................................... 681
52.3 WWDG Firmware driver defines .................................................... 682
52.3.1 WWDG............................................................................................ 682
53 LL ADC Generic Driver ................................................................ 685
53.1 ADC Firmware driver registers structures ..................................... 685
53.1.1 LL_ADC_CommonInitTypeDef ....................................................... 685
53.1.2 LL_ADC_InitTypeDef ...................................................................... 685
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53.1.3 LL_ADC_REG_InitTypeDef ............................................................ 685
53.2 ADC Firmware driver API description ............................................ 686
53.2.1 Detailed description of functions .................................................... 686
53.3 ADC Firmware driver defines ........................................................ 735
53.3.1 ADC ................................................................................................ 735
54 LL BUS Generic Driver ................................................................ 759
54.1 BUS Firmware driver API description ............................................ 759
54.1.1 Detailed description of functions .................................................... 759
54.2 BUS Firmware driver defines ........................................................ 777
54.2.1 BUS ................................................................................................ 777
55 LL COMP Generic Driver ............................................................. 779
55.1 COMP Firmware driver registers structures .................................. 779
55.1.1 LL_COMP_InitTypeDef .................................................................. 779
55.2 COMP Firmware driver API description ........................................ 779
55.2.1 Detailed description of functions .................................................... 779
55.3 COMP Firmware driver defines ..................................................... 788
55.3.1 COMP ............................................................................................. 788
56 LL CORTEX Generic Driver ......................................................... 791
56.1 CORTEX Firmware driver API description .................................... 791
56.1.1 Detailed description of functions .................................................... 791
56.2 CORTEX Firmware driver defines ................................................. 797
56.2.1 CORTEX ......................................................................................... 797
57 LL CRC Generic Driver ................................................................ 800
57.1 CRC Firmware driver API description ........................................... 800
57.1.1 Detailed description of functions .................................................... 800
57.2 CRC Firmware driver defines ........................................................ 806
57.2.1 CRC ................................................................................................ 806
58 LL CRS Generic Driver ................................................................ 808
58.1 CRS Firmware driver API description ............................................ 808
58.1.1 Detailed description of functions .................................................... 808
58.2 CRS Firmware driver defines ........................................................ 819
58.2.1 CRS ................................................................................................ 819
59 LL DAC Generic Driver ................................................................ 822
59.1 DAC Firmware driver registers structures ..................................... 822
59.1.1 LL_DAC_InitTypeDef ...................................................................... 822
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59.2 DAC Firmware driver API description ............................................ 822
59.2.1 Detailed description of functions .................................................... 822
59.3 DAC Firmware driver defines ........................................................ 839
59.3.1 DAC ................................................................................................ 839
60 LL DMA Generic Driver ............................................................... 845
60.1 DMA Firmware driver registers structures ..................................... 845
60.1.1 LL_DMA_InitTypeDef ..................................................................... 845
60.2 DMA Firmware driver API description ........................................... 846
60.2.1 Detailed description of functions .................................................... 846
60.3 DMA Firmware driver defines ........................................................ 880
60.3.1 DMA ................................................................................................ 880
61 LL EXTI Generic Driver ............................................................... 886
61.1 EXTI Firmware driver registers structures ..................................... 886
61.1.1 LL_EXTI_InitTypeDef ..................................................................... 886
61.2 EXTI Firmware driver API description ........................................... 886
61.2.1 Detailed description of functions .................................................... 886
61.3 EXTI Firmware driver defines ........................................................ 901
61.3.1 EXTI ................................................................................................ 901
62 LL GPIO Generic Driver .............................................................. 904
62.1 GPIO Firmware driver registers structures .................................... 904
62.1.1 LL_GPIO_InitTypeDef .................................................................... 904
62.2 GPIO Firmware driver API description .......................................... 904
62.2.1 Detailed description of functions .................................................... 904
62.3 GPIO Firmware driver defines ....................................................... 919
62.3.1 GPIO ............................................................................................... 919
63 LL I2C Generic Driver .................................................................. 922
63.1 I2C Firmware driver registers structures ....................................... 922
63.1.1 LL_I2C_InitTypeDef ........................................................................ 922
63.2 I2C Firmware driver API description .............................................. 923
63.2.1 Detailed description of functions .................................................... 923
63.3 I2C Firmware driver defines .......................................................... 963
63.3.1 I2C .................................................................................................. 963
64 LL I2S Generic Driver .................................................................. 968
64.1 I2S Firmware driver registers structures ....................................... 968
64.1.1 LL_I2S_InitTypeDef ........................................................................ 968
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64.2 I2S Firmware driver API description .............................................. 968
64.2.1 Detailed description of functions .................................................... 968
64.3 I2S Firmware driver defines .......................................................... 982
64.3.1 I2S .................................................................................................. 982
65 LL IWDG Generic Driver .............................................................. 985
65.1 IWDG Firmware driver API description ......................................... 985
65.1.1 Detailed description of functions .................................................... 985
65.2 IWDG Firmware driver defines ...................................................... 989
65.2.1 IWDG .............................................................................................. 989
66 LL LPTIM Generic Driver ............................................................. 990
66.1 LPTIM Firmware driver registers structures .................................. 990
66.1.1 LL_LPTIM_InitTypeDef................................................................... 990
66.2 LPTIM Firmware driver API description ......................................... 990
66.2.1 Detailed description of functions .................................................... 990
66.3 LPTIM Firmware driver defines ................................................... 1013
66.3.1 LPTIM ........................................................................................... 1013
67 LL LPUART Generic Driver ....................................................... 1017
67.1 LPUART Firmware driver registers structures ............................. 1017
67.1.1 LL_LPUART_InitTypeDef ............................................................. 1017
67.2 LPUART Firmware driver API description ................................... 1017
67.2.1 Detailed description of functions .................................................. 1017
67.3 LPUART Firmware driver defines ................................................ 1055
67.3.1 LPUART ....................................................................................... 1055
68 LL PWR Generic Driver ............................................................. 1059
68.1 PWR Firmware driver API description ......................................... 1059
68.1.1 Detailed description of functions .................................................. 1059
68.2 PWR Firmware driver defines ..................................................... 1069
68.2.1 PWR ............................................................................................. 1069
69 LL RCC Generic Driver .............................................................. 1072
69.1 RCC Firmware driver registers structures ................................... 1072
69.1.1 LL_RCC_ClocksTypeDef ............................................................. 1072
69.2 RCC Firmware driver API description ......................................... 1072
69.2.1 Detailed description of functions .................................................. 1072
69.3 RCC Firmware driver defines ...................................................... 1107
69.3.1 RCC .............................................................................................. 1107
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70 LL RNG Generic Driver ............................................................. 1116
70.1 RNG Firmware driver API description ......................................... 1116
70.1.1 Detailed description of functions .................................................. 1116
70.2 RNG Firmware driver defines ...................................................... 1119
70.2.1 RNG .............................................................................................. 1119
71 LL RTC Generic Driver .............................................................. 1121
71.1 RTC Firmware driver registers structures ................................... 1121
71.1.1 LL_RTC_InitTypeDef .................................................................... 1121
71.1.2 LL_RTC_TimeTypeDef................................................................. 1121
71.1.3 LL_RTC_DateTypeDef ................................................................. 1122
71.1.4 LL_RTC_AlarmTypeDef ............................................................... 1122
71.2 RTC Firmware driver API description .......................................... 1123
71.2.1 Detailed description of functions .................................................. 1123
71.3 RTC Firmware driver defines ...................................................... 1189
71.3.1 RTC .............................................................................................. 1189
72 LL SPI Generic Driver ................................................................ 1198
72.1 SPI Firmware driver registers structures ..................................... 1198
72.1.1 LL_SPI_InitTypeDef ..................................................................... 1198
72.2 SPI Firmware driver API description ........................................... 1199
72.2.1 Detailed description of functions .................................................. 1199
72.3 SPI Firmware driver defines ........................................................ 1217
72.3.1 SPI ................................................................................................ 1217
73 LL SYSTEM Generic Driver ....................................................... 1220
73.1 SYSTEM Firmware driver API description .................................. 1220
73.1.1 Detailed description of functions .................................................. 1220
73.2 SYSTEM Firmware driver defines ............................................... 1236
73.2.1 SYSTEM ....................................................................................... 1236
74 LL TIM Generic Driver ............................................................... 1239
74.1 TIM Firmware driver registers structures ..................................... 1239
74.1.1 LL_TIM_InitTypeDef ..................................................................... 1239
74.1.2 LL_TIM_OC_InitTypeDef.............................................................. 1239
74.1.3 LL_TIM_IC_InitTypeDef ............................................................... 1240
74.1.4 LL_TIM_ENCODER_InitTypeDef ................................................. 1240
74.2 TIM Firmware driver API description ........................................... 1241
74.2.1 Detailed description of functions .................................................. 1241
74.3 TIM Firmware driver defines........................................................ 1292
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74.3.1 TIM ................................................................................................ 1292
75 LL USART Generic Driver ......................................................... 1303
75.1 USART Firmware driver registers structures ............................... 1303
75.1.1 LL_USART_InitTypeDef ............................................................... 1303
75.1.2 LL_USART_ClockInitTypeDef ...................................................... 1303
75.2 USART Firmware driver API description ..................................... 1304
75.2.1 Detailed description of functions .................................................. 1304
75.3 USART Firmware driver defines .................................................. 1372
75.3.1 USART.......................................................................................... 1372
76 LL UTILS Generic Driver ........................................................... 1378
76.1 UTILS Firmware driver registers structures ................................. 1378
76.1.1 LL_UTILS_PLLInitTypeDef .......................................................... 1378
76.1.2 LL_UTILS_ClkInitTypeDef ............................................................ 1378
76.2 UTILS Firmware driver API description ....................................... 1378
76.2.1 System Configuration functions .................................................... 1378
76.2.2 Detailed description of functions .................................................. 1379
76.3 UTILS Firmware driver defines .................................................... 1382
76.3.1 UTILS............................................................................................ 1382
77 LL WWDG Generic Driver ......................................................... 1383
77.1 WWDG Firmware driver API description ..................................... 1383
77.1.1 Detailed description of functions .................................................. 1383
77.2 WWDG Firmware driver defines .................................................. 1387
77.2.1 WWDG.......................................................................................... 1387
78 Correspondence between API registers and API low-layer driver
functions ............................................................................................. 1388
78.1 ADC ............................................................................................ 1388
78.2 BUS ............................................................................................. 1393
78.3 COMP ......................................................................................... 1401
78.4 CORTEX ..................................................................................... 1402
78.5 CRC ............................................................................................ 1403
78.6 CRS ............................................................................................ 1403
78.7 DAC ............................................................................................ 1405
78.8 DMA ............................................................................................ 1407
78.9 EXTI ............................................................................................ 1410
78.10 GPIO ........................................................................................... 1411
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78.11 I2C .............................................................................................. 1412
78.12 I2S ............................................................................................... 1416
78.13 IWDG .......................................................................................... 1418
78.14 LPTIM ......................................................................................... 1418
78.15 LPUART ...................................................................................... 1421
78.16 PWR ............................................................................................ 1425
78.17 RCC ............................................................................................ 1426
78.18 RNG ............................................................................................ 1430
78.19 RTC ............................................................................................. 1431
78.20 SPI .............................................................................................. 1439
78.21 SYSTEM ..................................................................................... 1441
78.22 TIM .............................................................................................. 1444
78.23 USART ........................................................................................ 1452
78.24 WWDG ........................................................................................ 1459
79 FAQs ........................................................................................... 1460
80 Revision history ........................................................................ 1464
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List of tables
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List of tables
Table 1: Acronyms and definitions ............................................................................................................ 25
Table 2: HAL driver files............................................................................................................................ 27
Table 3: User-application files .................................................................................................................. 28
Table 4: API classification ......................................................................................................................... 32
Table 5: List of devices supported by HAL drivers ................................................................................... 34
Table 6: HAL API naming rules ................................................................................................................ 37
Table 7: Macros handling interrupts and specific clock configurations .................................................... 38
Table 8: Callback functions ....................................................................................................................... 39
Table 9: HAL generic APIs ....................................................................................................................... 40
Table 10: HAL extension APIs .................................................................................................................. 41
Table 11: Define statements used for HAL configuration ......................................................................... 45
Table 12: Description of GPIO_InitTypeDef structure .............................................................................. 47
Table 13: Description of EXTI configuration macros ................................................................................ 49
Table 14: MSP functions ........................................................................................................................... 54
Table 15: Timeout values ......................................................................................................................... 58
Table 16: LL driver files............................................................................................................................. 62
Table 17: Common peripheral initialization functions ............................................................................... 65
Table 18: Optional peripheral initialization functions ................................................................................ 66
Table 19: Specific Interrupt, DMA request and status flags management ............................................... 68
Table 20: Available function formats ......................................................................................................... 68
Table 21: Peripheral clock activation/deactivation management ............................................................. 68
Table 22: Peripheral activation/deactivation management ....................................................................... 69
Table 23: Peripheral configuration management ...................................................................................... 69
Table 24: Peripheral register management .............................................................................................. 69
Table 25: Correspondence between ADC registers and ADC low-layer driver functions .................... 1388
Table 26: Correspondence between BUS registers and BUS low-layer driver functions ..................... 1393
Table 27: Correspondence between COMP registers and COMP low-layer driver functions .............. 1401
Table 28: Correspondence between CORTEX registers and CORTEX low-layer driver functions ..... 1402
Table 29: Correspondence between CRC registers and CRC low-layer driver functions .................... 1403
Table 30: Correspondence between CRS registers and CRS low-layer driver functions .................... 1403
Table 31: Correspondence between DAC registers and DAC low-layer driver functions .................... 1405
Table 32: Correspondence between DMA registers and DMA low-layer driver functions ................... 1407
Table 33: Correspondence between EXTI registers and EXTI low-layer driver functions ................... 1410
Table 34: Correspondence between GPIO registers and GPIO low-layer driver functions ................. 1411
Table 35: Correspondence between I2C registers and I2C low-layer driver functions ........................ 1412
Table 36: Correspondence between I2S registers and I2S low-layer driver functions ......................... 1416
Table 37: Correspondence between IWDG registers and IWDG low-layer driver functions ................ 1418
Table 38: Correspondence between LPTIM registers and LPTIM low-layer driver functions .............. 1418
Table 39: Correspondence between LPUART registers and LPUART low-layer driver functions ....... 1421
Table 40: Correspondence between PWR registers and PWR low-layer driver functions ................... 1425
Table 41: Correspondence between RCC registers and RCC low-layer driver functions .................... 1426
Table 42: Correspondence between RNG registers and RNG low-layer driver functions ................... 1430
Table 43: Correspondence between RTC registers and RTC low-layer driver functions ..................... 1431
Table 44: Correspondence between SPI registers and SPI low-layer driver functions ........................ 1439
Table 45: Correspondence between SYSTEM registers and SYSTEM low-layer driver functions ...... 1441
Table 46: Correspondence between TIM registers and TIM low-layer driver functions ....................... 1444
Table 47: Correspondence between USART registers and USART low-layer driver functions ........... 1452
Table 48: Correspondence between WWDG registers and WWDG low-layer driver functions ........... 1459
Table 49: Document revision history .................................................................................................... 1464
List of figures
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List of figures
Figure 1: Example of project template ...................................................................................................... 29
Figure 2: Adding device-specific functions ............................................................................................... 41
Figure 3: Adding family-specific functions ................................................................................................ 42
Figure 4: Adding new peripherals ............................................................................................................. 42
Figure 5: Updating existing APIs .............................................................................................................. 43
Figure 6: File inclusion model ................................................................................................................... 44
Figure 7: HAL driver model ....................................................................................................................... 52
Figure 8: Low Layer driver folders ............................................................................................................ 63
Figure 9: Low Layer driver CMSIS files .................................................................................................... 64
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Acronyms and definitions
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1 Acronyms and definitions
Table 1: Acronyms and definitions
Acronym
Definition
ADC
Analog-to-digital converter
ANSI
American National Standards Institute
API
Application Programming Interface
BSP
Board Support Package
COMP
Comparator
CMSIS
Cortex Microcontroller Software Interface Standard
CPU
Central Processing Unit
CRYP
Cryptographic processor unit
CRC
CRC calculation unit
DAC
Digital to analog converter
DMA
Direct Memory Access
EXTI
External interrupt/event controller
FLASH
Flash memory
GPIO
General purpose I/Os
HAL
Hardware abstraction layer
I2C
Inter-integrated circuit
I2S
Inter-integrated sound
IRDA
InfraRed Data Association
IWDG
Independent watchdog
LCD
Liquid Crystal Display Controller
LPTIM
Low Power Timer
MSP
MCU Specific Package
NVIC
Nested Vectored Interrupt Controller
PCD
USB Peripheral Controller Driver
PWR
Power controller
RCC
Reset and clock controller
RNG
Random Number Generator
RTC
Real-time clock
SD
Secure Digital
SRAM
SRAM external memory
SMARTCARD
Smartcard IC
SPI
Serial Peripheral interface
SysTick
System tick timer
TIM
Advanced-control, general-purpose or basic timer
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Acronym
Definition
TSC
Touch Sensing Controller
UART
Universal asynchronous receiver/transmitter
USART
Universal synchronous receiver/transmitter
WWDG
Window watchdog
USB
Universal Serial Bus
PPP
STM32 peripheral or block
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Overview of HAL drivers
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2 Overview of HAL drivers
The HAL drivers were designed to offer a rich set of APIs and to interact easily with the
application upper layers.
Each driver consists of a set of functions covering the most common peripheral features.
The development of each driver is driven by a common API which standardizes the driver
structure, the functions and the parameter names.
The HAL drivers include a set of driver modules, each module being linked to a standalone
peripheral. However, in some cases, the module is linked to a peripheral functional mode.
As an example, several modules exist for the USART peripheral: UART driver module,
USART driver module, SMARTCARD driver module and IRDA driver module.
The HAL main features are the following:
Cross-family portable set of APIs covering the common peripheral features as well as
extension APIs in case of specific peripheral features.
Three API programming models: polling, interrupt and DMA.
APIs are RTOS compliant:
Fully re-entrant APIs
Systematic usage of timeouts in polling mode.
Support of peripheral multi-instance allowing concurrent API calls for multiple
instances of a given peripheral (USART1, USART2...)
All HAL APIs implement user-callback functions mechanism:
Peripheral Init/DeInit HAL APIs can call user-callback functions to perform
peripheral system level Initialization/De-Initialization (clock, GPIOs, interrupt,
DMA)
Peripherals interrupt events
Error events.
Object locking mechanism: safe hardware access to prevent multiple spurious
accesses to shared resources.
Timeout used for all blocking processes: the timeout can be a simple counter or a
timebase.
2.1 HAL and user-application files
2.1.1 HAL driver files
HAL drivers are composed of the following set of files:
Table 2: HAL driver files
File
Description
stm32l0xx_hal_ppp.c
Main peripheral/module driver file.
It includes the APIs that are common to all STM32 devices.
Example: stm32l0xx_hal_adc.c, stm32l0xx_hal_irda.c, …
stm32l0xx_hal_ppp.h
Header file of the main driver C file
It includes common data, handle and enumeration structures,
define statements and macros, as well as the exported generic
APIs.
Example: stm32l0xx_hal_adc.h, stm32l0xx_hal_irda.h, …
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File
Description
stm32l0xx_hal_ppp_ex.c
Extension file of a peripheral/module driver. It includes the specific
APIs for a given part number or family, as well as the newly
defined APIs that overwrite the default generic APIs if the internal
process is implemented in different way.
Example: stm32l0xx_hal_adc_ex.c, stm32l0xx_hal_dma_ex.c, …
stm32l0xx_hal_ppp_ex.h
Header file of the extension C file.
It includes the specific data and enumeration structures, define
statements and macros, as well as the exported device part
number specific APIs
Example: stm32l0xx_hal_adc_ex.h, stm32l0xx_hal_dma_ex.h, …
stm32l0xx_hal.c
This file is used for HAL initialization and contains DBGMCU,
Remap and Time Delay based on systick APIs.
stm32l0xx_hal.h
stm32l0xx_hal.c header file
stm32l0xx_hal_msp_template.c
Template file to be copied to the user application folder.
It contains the MSP initialization and de-initialization (main routine
and callbacks) of the peripheral used in the user application.
stm32l0xx_hal_conf_template.h
Template file allowing to customize the drivers for a given
application.
stm32l0xx_hal_def.h
Common HAL resources such as common define statements,
enumerations, structures and macros.
2.1.2 User-application files
The minimum files required to build an application using the HAL are listed in the table
below:
Table 3: User-application files
File
Description
system_stm32l0xx.c
This file contains SystemInit() which is called at startup just after reset and
before branching to the main program. It does not configure the system
clock at startup (contrary to the standard library). This is to be done using
the HAL APIs in the user files.
It allows relocating the vector table in internal SRAM.
startup_stm32l0xx.s
Toolchain specific file that contains reset handler and exception vectors.
For some toolchains, it allows adapting the stack/heap size to fit the
application requirements.
stm32l0xx_flash.icf
(optional)
Linker file for EWARM toolchain allowing mainly to adapt the stack/heap
size to fit the application requirements.
stm32l0xx_FLASH.ld
(optional)
Linker file for SW4STM32 toolchain.
stm32l0xx_hal_msp.c
This file contains the MSP initialization and de-initialization (main routine
and callbacks) of the peripheral used in the user application.
stm32l0xx_hal_conf.h
This file allows the user to customize the HAL drivers for a specific
application.
It is not mandatory to modify this configuration. The application can use the
default configuration without any modification.
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File
Description
stm32l0xx_it.c/.h
This file contains the exceptions handler and peripherals interrupt service
routine, and calls HAL_IncTick() at regular time intervals to increment a
local variable (declared in stm32l0xx_hal.c) used as HAL timebase. By
default, this function is called each 1ms in Systick ISR. .
The PPP_IRQHandler() routine must call HAL_PPP_IRQHandler() if an
interrupt based process is used within the application.
main.c/.h
This file contains the main program routine, in particular call to HAL_Init(),
assert_failed() implementation, system clock configuration, peripheral HAL
initialization and user application code.
The STM32Cube package comes with ready-to-use project templates, one for each
supported board. Each project contains the files listed above and a preconfigured project
for the supported toolchains.
Each project template provides empty main loop function and can be used as a starting
point to get familiar with project settings for STM32Cube. Its features are the following:
It contains the sources of HAL, CMSIS and BSP drivers which are the minimal
components to develop a code on a given board.
It contains the include paths for all the firmware components.
It defines the STM32 device supported, and allows configuring the CMSIS and HAL
drivers accordingly.
It provides ready to use user files preconfigured as defined below:
HAL is initialized
SysTick ISR implemented for HAL_Delay()
System clock configured with the maximum frequency of the device
If an existing project is copied to another location, then include paths must be
updated.
Figure 1: Example of project template
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2.2 HAL data structures
Each HAL driver can contain the following data structures:
Peripheral handle structures
Initialization and configuration structures
Specific process structures.
2.2.1 Peripheral handle structures
The APIs have a modular generic multi-instance architecture that allows working with
several IP instances simultaneously.
PPP_HandleTypeDef *handle is the main structure that is implemented in the HAL
drivers. It handles the peripheral/module configuration and registers and embeds all the
structures and variables needed to follow the peripheral device flow.
The peripheral handle is used for the following purposes:
Multi instance support: each peripheral/module instance has its own handle. As a
result instance resources are independent.
Peripheral process intercommunication: the handle is used to manage shared data
resources between the process routines.
Example: global pointers, DMA handles, state machine.
Storage: this handle is used also to manage global variables within a given HAL
driver.
An example of peripheral structure is shown below:
typedef struct
{
USART_TypeDef *Instance; /* USART registers base address */
USART_InitTypeDef Init; /* Usart communication parameters */
uint8_t *pTxBuffPtr;/* Pointer to Usart Tx transfer Buffer */
uint16_t TxXferSize; /* Usart Tx Transfer size */
__IO uint16_t TxXferCount;/* Usart Tx Transfer Counter */
uint8_t *pRxBuffPtr;/* Pointer to Usart Rx transfer Buffer */
uint16_t RxXferSize; /* Usart Rx Transfer size */
__IO uint16_t RxXferCount; /* Usart Rx Transfer Counter */
DMA_HandleTypeDef *hdmatx; /* Usart Tx DMA Handle parameters */
DMA_HandleTypeDef *hdmarx; /* Usart Rx DMA Handle parameters */
HAL_LockTypeDef Lock; /* Locking object */
__IO HAL_USART_StateTypeDef State; /* Usart communication state */
__IO uint32_t ErrorCode;/* USART Error code */
}USART_HandleTypeDef;
1) The multi-instance feature implies that all the APIs used in the application are
re-entrant and avoid using global variables because subroutines can fail to be re-
entrant if they rely on a global variable to remain unchanged but that variable is
modified when the subroutine is recursively invoked. For this reason, the following
rules are respected:
Re-entrant code does not hold any static (or global) non-constant data: re-
entrant functions can work with global data. For example, a re-entrant
interrupt service routine can grab a piece of hardware status to work with
(e.g. serial port read buffer) which is not only global, but volatile. Still, typical
use of static variables and global data is not advised, in the sense that only
atomic read-modify-write instructions should be used in these variables. It
should not be possible for an interrupt or signal to occur during the execution
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of such an instruction.
Reentrant code does not modify its own code.
2) When a peripheral can manage several processes simultaneously using the
DMA (full duplex case), the DMA interface handle for each process is added in the
PPP_HandleTypeDef.
3) For the shared and system peripherals, no handle or instance object is used.
The peripherals concerned by this exception are the following:
GPIO
SYSTICK
NVIC
PWR
RCC
FLASH.
2.2.2 Initialization and configuration structure
These structures are defined in the generic driver header file when it is common to all part
numbers. When they can change from one part number to another, the structures are
defined in the extension header file for each part number.
typedef struct
{
uint32_t BaudRate; /*!< This member configures the UART communication baudrate.*/
uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received
in a frame.*/
uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.*/
uint32_t Parity; /*!< Specifies the parity mode. */
uint32_t Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or
disabled.*/
uint32_t HwFlowCtl; /*!< Specifies wether the hardware flow control mode is enabled
or disabled.*/
uint32_t OverSampling; /*!< Specifies wether the Over sampling 8 is enabled or
disabled,
to achieve higher speed (up to fPCLK/8).*/
}UART_InitTypeDef;
The config structure is used to initialize the sub-modules or sub-instances. See
below example:
HAL_ADC_ConfigChannel (ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef*
sConfig)
2.2.3 Specific process structures
The specific process structures are used for specific process (common APIs). They are
defined in the generic driver header file.
Example:
HAL_PPP_Process (PPP_HandleTypeDef* hadc,PPP_ProcessConfig* sConfig)
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2.3 API classification
The HAL APIs are classified into three categories:
Generic APIs: common generic APIs applying to all STM32 devices. These APIs are
consequently present in the generic HAL driver files of all STM32 microcontrollers.
HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc); HAL_StatusTypeDef
HAL_ADC_DeInit(ADC_HandleTypeDef *hadc); HAL_StatusTypeDef
HAL_ADC_Start(ADC_HandleTypeDef* hadc); HAL_StatusTypeDef
HAL_ADC_Stop(ADC_HandleTypeDef* hadc); HAL_StatusTypeDef
HAL_ADC_Start_IT(ADC_HandleTypeDef* hadc); HAL_StatusTypeDef
HAL_ADC_Stop_IT(ADC_HandleTypeDef* hadc); void HAL_ADC_IRQHandler(ADC_HandleTypeDef*
hadc);
Extension APIs: This set of API is divided into two sub-categories :
Family specific APIs: APIs applying to a given family. They are located in the
extension HAL driver file (see example below related to the ADC).
HAL_StatusTypeDef HAL_ADCEx_Calibration_Start(ADC_HandleTypeDef* hadc, uint32_t
SingleDiff); uint32_t HAL_ADCEx_Calibration_GetValue(ADC_HandleTypeDef* hadc,
uint32_t SingleDiff);
Device part number specific APIs: These APIs are implemented in the
extension file and delimited by specific define statements relative to a given part
number.
#if !defined(STM32L051xx) && !defined(STM32L061xx) void
HAL_RCCEx_CRSConfig(RCC_CRSInitTypeDef *pInit); void
HAL_RCCEx_CRSSoftwareSynchronizationGenerate(void); RCC_CRSStatusTypeDef
HAL_RCCEx_CRSWaitSynchronization(uint32_t Timeout); #endif /* !(STM32L051xx) &&
!(STM32L061xx) */
The data structure related to the specific APIs is delimited by the device part
number define statement. It is located in the corresponding extension header C
file.
The following table summarizes the location of the different categories of HAL APIs in the
driver files.
Table 4: API classification
Generic file
Extension file
Common APIs
X
X (1)
Family specific APIs
X
Device specific APIs
X
Notes:
(1)In some cases, the implementation for a specific device part number may change . In this case the generic API
is declared as weak function in the extension file. The API is implemented again to overwrite the default function
Family specific APIs are only related to a given family. This means that if a
specific API is implemented in another family, and the arguments of this latter
family are different, additional structures and arguments might need to be added.
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The IRQ handlers are used for common and family specific processes.
2.4 Devices supported by HAL drivers
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Table 5: List of devices supported by HAL drivers
IP/Module
STM32L011xx
STM32L021xx
STM32L0"1xx
STM32L041xx
STM32L051xx
STM32L052xx
STM32L053xx
STM32L061xx
STM32L062xx
STM32L063xx
STM32L071xx
STM32L072xx
STM32L073xx
STM32L081xx
STM32L082xx
STM32L083xx
stm32l0xx_hal.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_adc.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_adc_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_comp.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_cortex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_crc.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_crc_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_cryp.c
No
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
stm32l0xx_hal_cryp_ex.c
No
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
stm32l0xx_hal_dac.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_dac_ex.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_dma.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_firewall.c
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_flash.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_flash_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_flash_ramfunc.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_gpio.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_i2c.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_i2c_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_i2s.c
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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IP/Module
STM32L011xx
STM32L021xx
STM32L0"1xx
STM32L041xx
STM32L051xx
STM32L052xx
STM32L053xx
STM32L061xx
STM32L062xx
STM32L063xx
STM32L071xx
STM32L072xx
STM32L073xx
STM32L081xx
STM32L082xx
STM32L083xx
stm32l0xx_hal_irda.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_iwdg.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_lcd.c
No
No
No
No
No
No
Yes
No
No
Yes
No
No
Yes
No
No
Yes
stm32l0xx_hal_lptim.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_pcd.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_pcd_ex.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_pwr.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_pwr_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_rcc.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_rcc_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_rng.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_rtc.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_rtc_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_smbus.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_smartcard.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_smartcard_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_spi.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_tim.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_tim_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_tsc.c
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
stm32l0xx_hal_uart.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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IP/Module
STM32L011xx
STM32L021xx
STM32L0"1xx
STM32L041xx
STM32L051xx
STM32L052xx
STM32L053xx
STM32L061xx
STM32L062xx
STM32L063xx
STM32L071xx
STM32L072xx
STM32L073xx
STM32L081xx
STM32L082xx
STM32L083xx
stm32l0xx_hal_uart_ex.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_usart.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
stm32l0xx_hal_wwdg.c
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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2.5 HAL driver rules
2.5.1 HAL API naming rules
The following naming rules are used in HAL drivers:
Table 6: HAL API naming rules
Generic
Family specific
Device specific
File names
stm32l0xx_hal_ppp (c/h)
stm32l0xx_hal_ppp_ex (c/h)
stm32l0xx_ hal_ppp_ex (c/h)
Module
name
HAL_PPP_ MODULE
Function
name
HAL_PPP_Function
HAL_PPP_FeatureFunction
_MODE
HAL_PPPEx_Function
HAL_PPPEx_FeatureFunction_M
ODE
HAL_PPPEx_Function
HAL_PPPEx_FeatureFunction_M
ODE
Handle
name
PPP_HandleTypedef
NA
NA
Init
structure
name
PPP_InitTypeDef
NA
PPP_InitTypeDef
Enum
name
HAL_PPP_StructnameType
Def
NA
NA
The PPP prefix refers to the peripheral functional mode and not to the peripheral itself.
For example, if the USART, PPP can be USART, IRDA, UART or SMARTCARD
depending on the peripheral mode.
The constants used in one file are defined within this file. A constant used in several
files is defined in a header file. All constants are written in uppercase, except for
peripheral driver function parameters.
typedef variable names should be suffixed with _TypeDef.
Registers are considered as constants. In most cases, their name is in uppercase and
uses the same acronyms as in the STM32L0 reference manuals.
Peripheral registers are declared in the PPP_TypeDef structure (e.g. ADC_TypeDef)
in stm32l0xxx.h header file.stm32l0xxx.h corresponds to stm32l051xx.h,
stm32l052xx.h, stm32l053xx.h, stm32l061xx.h, stm32l062xx.h or stm32l063xx.h.
Peripheral function names are prefixed by HAL_, then the corresponding peripheral
acronym in uppercase followed by an underscore. The first letter of each word is in
uppercase (e.g. HAL_UART_Transmit()). Only one underscore is allowed in a function
name to separate the peripheral acronym from the rest of the function name.
The structure containing the PPP peripheral initialization parameters are named
PPP_InitTypeDef (e.g. ADC_InitTypeDef).
The structure containing the Specific configuration parameters for the PPP peripheral
are named PPP_xxxxConfTypeDef (e.g. ADC_ChannelConfTypeDef).
Peripheral handle structures are named PPP_HandleTypedef (e.g
DMA_HandleTypeDef)
The functions used to initialize the PPP peripheral according to parameters specified
in PPP_InitTypeDef are named HAL_PPP_Init (e.g. HAL_TIM_Init()).
The functions used to reset the PPP peripheral registers to their default values are
named PPP_DeInit, e.g. TIM_DeInit.
The MODE suffix refers to the process mode, which can be polling, interrupt or DMA.
As an example, when the DMA is used in addition to the native resources, the function
should be called: HAL_PPP_Function_DMA ().
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The Feature prefix should refer to the new feature.
Example: HAL_ADC_Start() refers to the injection mode
2.5.2 HAL general naming rules
For the shared and system peripherals, no handle or instance object is used. This rule
applies to the following peripherals:
Example: The HAL_GPIO_Init() requires only the GPIO address and its configuration
parameters. HAL_StatusTypeDef HAL_GPIO_Init (GPIO_TypeDef* GPIOx,
GPIO_InitTypeDef *Init)
{
/*GPIO Initialization body */
} GPIO
SYSTICK
NVIC
RCC
FLASH.
The macros that handle interrupts and specific clock configurations are defined in
each peripheral/module driver. These macros are exported in the peripheral driver
header files so that they can be used by the extension file. The list of these macros is
defined below: This list is not exhaustive and other macros related to peripheral
features can be added, so that they can be used in the user application.
Table 7: Macros handling interrupts and specific clock configurations
Macros
Description
__HAL_PPP_ENABLE_IT(__HANDLE__, __INTERRUPT__)
Enables a specific peripheral
interrupt
__HAL_PPP_DISABLE_IT(__HANDLE__, __INTERRUPT__)
Disables a specific peripheral
interrupt
__HAL_PPP_GET_IT (__HANDLE__, __ INTERRUPT __)
Gets a specific peripheral interrupt
status
__HAL_PPP_CLEAR_IT (__HANDLE__, __ INTERRUPT __)
Clears a specific peripheral
interrupt status
__HAL_PPP_GET_FLAG (__HANDLE__, __FLAG__)
Gets a specific peripheral flag
status
__HAL_PPP_CLEAR_FLAG (__HANDLE__, __FLAG__)
Clears a specific peripheral flag
status
__HAL_PPP_ENABLE(__HANDLE__)
Enables a peripheral
__HAL_PPP_DISABLE(__HANDLE__)
Disables a peripheral
__HAL_PPP_XXXX (__HANDLE__, __PARAM__)
Specific PPP HAL driver macro
__HAL_PPP_GET_ IT_SOURCE (__HANDLE__, __
INTERRUPT __)
Checks the source of specified
interrupt
NVIC and SYSTICK are two ARM Cortex core features. The APIs related to these
features are located in the stm32l0xx_hal_cortex.c file.
When a status bit or a flag is read from registers, it is composed of shifted values
depending on the number of read values and of their size. In this case, the returned
status width is 32 bits. Example : STATUS = XX | (YY << 16) or STATUS = XX | (YY
<< 8) | (YY << 16) | (YY << 24)".
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The PPP handles are valid before using the HAL_PPP_Init() API. The init function
performs a check before modifying the handle fields.
HAL_PPP_Init(PPP_HandleTypeDef) if(hppp == NULL) { return HAL_ERROR; }
The macros defined below are used:
Conditional macro:
#define ABS(x) (((x) > 0) ? (x) : -(x))
Pseudo-code macro (multiple instructions macro):
#define __HAL_LINKDMA(__HANDLE__, __PPP_DMA_FIELD_, __DMA_HANDLE_) \ do{ \
(__HANDLE__)->__PPP_DMA_FIELD_ = &(__DMA_HANDLE_); \ (__DMA_HANDLE_).Parent =
(__HANDLE__); \ } while(0)
2.5.3 HAL interrupt handler and callback functions
Besides the APIs, HAL peripheral drivers include:
HAL_PPP_IRQHandler() peripheral interrupt handler that should be called from
stm32l0xx_it.c
User callback functions.
The user callback functions are defined as empty functions with “weak” attribute. They
have to be defined in the user code.
There are three types of user callbacks functions:
Peripheral system level initialization/ de-Initialization callbacks: HAL_PPP_MspInit()
and HAL_PPP_MspDeInit
Process complete callbacks : HAL_PPP_ProcessCpltCallback
Error callback: HAL_PPP_ErrorCallback.
Table 8: Callback functions
Callback functions
Example
HAL_PPP_MspInit() / _DeInit()
Ex: HAL_USART_MspInit()
Called from HAL_PPP_Init() API function to perform peripheral
system level initialization (GPIOs, clock, DMA, interrupt)
HAL_PPP_ProcessCpltCallback
Ex: HAL_USART_TxCpltCallback
Called by peripheral or DMA interrupt handler when the process
completes
HAL_PPP_ErrorCallback
Ex: HAL_USART_ErrorCallback
Called by peripheral or DMA interrupt handler when an error
occurs
2.6 HAL generic APIs
The generic APIs provide common generic functions applying to all STM32 devices. They
are composed of four APIs groups:
Initialization and de-initialization functions:HAL_PPP_Init(), HAL_PPP_DeInit()
IO operation functions: HAL_PPP_Read(), HAL_PPP_Write(),HAL_PPP_Transmit(),
HAL_PPP_Receive()
Control functions: HAL_PPP_Set (), HAL_PPP_Get ().
State and Errors functions: HAL_PPP_GetState (), HAL_PPP_GetError ().
For some peripheral/module drivers, these groups are modified depending on the
peripheral/module implementation.
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Example: in the timer driver, the API grouping is based on timer features (PWM, OC, IC...).
The initialization and de-initialization functions allow initializing a peripheral and configuring
the low-level resources, mainly clocks, GPIO, alternate functions (AF) and possibly DMA
and interrupts. The HAL_DeInit()function restores the peripheral default state, frees the
low-level resources and removes any direct dependency with the hardware.
The IO operation functions perform a row access to the peripheral payload data in write
and read modes.
The control functions are used to change dynamically the peripheral configuration and set
another operating mode.
The peripheral state and errors functions allow retrieving in runtime the peripheral and data
flow states, and identifying the type of errors that occurred. The example below is based on
the ADC peripheral. The list of generic APIs is not exhaustive. It is only given as an
example.
Table 9: HAL generic APIs
Function
group
Common API name
Description
Initialization
group
HAL_ADC_Init()
This function initializes the peripheral and
configures the low -level resources (clocks,
GPIO, AF..)
HAL_ADC_DeInit()
This function restores the peripheral default state,
frees the low-level resources and removes any
direct dependency with the hardware.
IO operation
group
HAL_ADC_Start ()
This function starts ADC conversions when the
polling method is used
HAL_ADC_Stop ()
This function stops ADC conversions when the
polling method is used
HAL_ADC_PollForConversion()
This function allows waiting for the end of
conversions when the polling method is used. In
this case, a timout value is specified by the user
according to the application.
HAL_ADC_Start_IT()
This function starts ADC conversions when the
interrupt method is used
HAL_ADC_Stop_IT()
This function stops ADC conversions when the
interrupt method is used
HAL_ADC_IRQHandler()
This function handles ADC interrupt requests
HAL_ADC_ConvCpltCallback()
Callback function called in the IT subroutine to
indicate the end of the current process or when a
DMA transfer has completed
HAL_ADC_ErrorCallback()
Callback function called in the IT subroutine if a
peripheral error or a DMA transfer error occurred
Control group
HAL_ADC_ConfigChannel()
This function configures the selected ADC regular
channel, the corresponding rank in the sequencer
and the sample time
HAL_ADC_AnalogWDGConfig
This function configures the analog watchdog for
the selected ADC
State and
Errors group
HAL_ADC_GetState()
This function allows getting in runtime the
peripheral and the data flow states.
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Function
group
Common API name
Description
HAL_ADC_GetError()
This fuction allows getting in runtime the error
that occurred during IT routine
2.7 HAL extension APIs
2.7.1 HAL extension model overview
The extension APIs provide specific functions or overwrite modified APIs for a specific
family (series) or specific part number within the same family.
The extension model consists of an additional file, stm32l0xx_hal_ppp_ex.c, that includes
all the specific functions and define statements (stm32l0xx_hal_ppp_ex.h) for a given part
number.
Below an example based on the ADC peripheral:
Table 10: HAL extension APIs
Function Group
Common API Name
HAL_ADCEx_Calibration_Start()
This function is used to start the automatic ADC calibration
HAL_ADCEx_Calibration_GetValue()
This function is used to get the ADC calibration factor
HAL_ADCEx_Calibration_SetValue()
This function is used to set the calibration factor to overwrite
automatic conversion result
2.7.2 HAL extension model cases
The specific IP features can be handled by the HAL drivers in five different ways. They are
described below.
Case 1: Adding a part number-specific function
When a new feature specific to a given device is required, the new APIs are added in the
stm32l0xx_hal_ppp_ex.c extension file. They are named HAL_PPPEx_Function().
Figure 2: Adding device-specific functions
Example: stm32l0xx_hal_rcc_ex.c/h
#if !defined(STM32L051xx) && !defined(STM32L061xx)
void HAL_RCCEx_CRSConfig(RCC_CRSInitTypeDef *pInit);
void HAL_RCCEx_CRSSoftwareSynchronizationGenerate(void);
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void HAL_RCCEx_CRSGetSynchronizationInfo(RCC_CRSSynchroInfoTypeDef *pSynchroInfo);
RCC_CRSStatusTypeDef HAL_RCCEx_CRSWaitSynchronization(uint32_t Timeout);
#endif /* !(STM32L051xx) && !(STM32L061xx) */
Case 2: Adding a family-specific function
In this case, the API is added in the extension driver C file and named
HAL_PPPEx_Function ().
Figure 3: Adding family-specific functions
Case 3: Adding a new peripheral (specific to a device belonging to a given
family)
When a peripheral which is available only in a specific device is required, the APIs
corresponding to this new peripheral/module are added in stm32l0xx_hal_newppp.c.
However the inclusion of this file is selected in the stm32lxx_hal_conf.h using the macro:
#define HAL_NEWPPP_MODULE_ENABLED
Figure 4: Adding new peripherals
Example:stm32l0xx_hal_lcd.c/h
Case 4: Updating existing common APIs
In this case, the routines are defined with the same names in the stm32l0xx_hal_ppp_ex.c
extension file, while the generic API is defined as weak, so that the compiler will overwrite
the original routine by the new defined function.
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Figure 5: Updating existing APIs
Case 5: Updating existing data structures
The data structure for a specific device part number (e.g. PPP_InitTypeDef) can be
composed of different fields. In this case, the data structure is defined in the extension
header file and delimited by the specific part number define statement.
Example:
#if defined (STM32L051xx)
typedef struct
{
(…)
}PPP_InitTypeDef;
#endif /* STM32L051xx */
2.8 File inclusion model
The header of the common HAL driver file (stm32l0xx_hal.h) includes the common
configurations for the whole HAL library. It is the only header file that is included in the user
sources and the HAL C sources files to be able to use the HAL resources.
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Figure 6: File inclusion model
A PPP driver is a standalone module which is used in a project. The user must enable the
corresponding USE_HAL_PPP_MODULE define statement in the configuration file.
/*********************************************************************
* @file stm32l0xx_hal_conf.h
* @author MCD Application Team
* @version VX.Y.Z * @date dd-mm-yyyy
* @brief This file contains the modules to be used
**********************************************************************
(…)
#define USE_HAL_USART_MODULE
#define USE_HAL_IRDA_MODULE
#define USE_HAL_DMA_MODULE
#define USE_HAL_RCC_MODULE
(…)
2.9 HAL common resources
The common HAL resources, such as common define enumerations, structures and
macros, are defined in stm32l0xx_hal_def.h.The main common define enumeration is
HAL_StatusTypeDef.
HAL Status
The HAL status is used by almost all HAL APIs, except for boolean functions and IRQ
handler. It returns the status of the current API operations. It has four possible values
as described below:
Typedef enum
{
HAL_OK = 0x00, HAL_ERROR = 0x01, HAL_BUSY = 0x02, HAL_TIMEOUT = 0x03
} HAL_StatusTypeDef;
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HAL Locked
The HAL lock is used by all HAL APIs to prevent accessing by accident shared
resources.
typedef enum
{
HAL_UNLOCKED = 0x00, /*!<Resources unlocked */
HAL_LOCKED = 0x01 /*!< Resources locked */
} HAL_LockTypeDef;
In addition to common resources, the stm32l0xx_hal_def.h file calls the stm32l0xx.h
file in CMSIS library to get the data structures and the address mapping for all
peripherals:
Declarations of peripheral registers and bits definition.
Macros to access peripheral registers hardware (Write register, Read
register…etc.).
Common macros
Macro defining HAL_MAX_DELAY
#define HAL_MAX_DELAY 0xFFFFFFFF
Macro linking a PPP peripheral to a DMA structure pointer:
__HAL_LINKDMA();#define __HAL_LINKDMA(__HANDLE__, __PPP_DMA_FIELD_, __DMA_HANDLE_) \
do{ \
(__HANDLE__)->__PPP_DMA_FIELD_ = &(__DMA_HANDLE_); \
(__DMA_HANDLE_).Parent = (__HANDLE__); \
} while(0)
2.10 HAL configuration
The configuration file, stm32l0xx_hal_conf.h, allows customizing the drivers for the user
application. Modifying this configuration is not mandatory: the application can use the
default configuration without any modification.
To configure these parameters, the user should enable, disable or modify some options by
uncommenting, commenting or modifying the values of the related define statements as
described in the table below:
Table 11: Define statements used for HAL configuration
Configuration item
Description
Default
Value
HSE_VALUE
Defines the value of the external oscillator (HSE)
expressed in Hz. The user must adjust this define
statement when using a different crystal value.
8 000 000
(Hz)
HSE_STARTUP_TIMEOUT
Timeout for HSE start-up, expressed in ms
5000
HSI_VALUE
Defines the value of the internal oscillator (HSI)
expressed in Hz.
16 000 000
(Hz)
MSI_VALUE
Defines the Internal Multiple Speed oscillator (MSI)
value expressed in Hz.
2 000 000
(Hz)
VDD_VALUE
VDD value
3300 (mV)
USE_RTOS
Enables the use of RTOS
FALSE (for
future use)
PREFETCH_ENABLE
Enables prefetch feature
TRUE
BUFFER_CACHE_ENABLE
Enables buffer cache
FALSE
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The stm32l0xx_hal_conf_template.h file is located in the HAL drivers Inc folder. It
should be copied to the user folder, renamed and modified as described above.
By default, the values defined in the stm32l0xx_hal_conf_template.h file are the
same as the ones used for the examples and demonstrations. All HAL include
files are enabled so that they can be used in the user code without modifications.
2.11 HAL system peripheral handling
This chapter gives an overview of how the system peripherals are handled by the HAL
drivers. The full API list is provided within each peripheral driver description section.
2.11.1 Clock
Two main functions can be used to configure the system clock:
HAL_RCC_OscConfig (RCC_OscInitTypeDef *RCC_OscInitStruct). This function
configures/enables multiple clock sources (HSE, HSI, LSE, LSI, PLL).
HAL_RCC_ClockConfig (RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t
FLatency). This function
selects the system clock source
configures AHB, APB1 and APB2 clock dividers
configures the number of Flash memory wait states
updates the SysTick configuration when HCLK clock changes.
Some peripheral clocks are not derived from the system clock (RTC, USB…). In this case,
the clock configuration is performed by an extended API defined in
stm32l0xx_hal_ppp_ex.c: HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef
*PeriphClkInit).
Additional RCC HAL driver functions are available:
HAL_RCC_DeInit() Clock de-initialization function that returns clock configuration to
reset state
Get clock functions that allow retreiving various clock configurations (system clock,
HCLK, PCLK1, PCLK2, …)
MCO and CSS configuration functions
A set of macros are defined in stm32l0xx_hal_rcc.h. They allows executing elementary
operations on RCC block registers, such as peripherals clock gating/reset control:
__PPP_CLK_ENABLE/__PPP_CLK_DISABLE to enable/disable the peripheral clock
__PPP_FORCE_RESET/__PPP_RELEASE_RESET to force/release peripheral reset
__PPP_CLK_SLEEP_ENABLE/__PPP_CLK_SLEEP_DISABLE to enable/disable the
peripheral clock during low power (Sleep) mode.
2.11.2 GPIOs
GPIO HAL APIs are the following:
HAL_GPIO_Init() / HAL_GPIO_DeInit()
HAL_GPIO_ReadPin() / HAL_GPIO_WritePin()
HAL_GPIO_TogglePin ().
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In addition to standard GPIO modes (input, output, analog), the pin mode can be
configured as EXTI with interrupt or event generation.
When selecting EXTI mode with interrupt generation, the user must call
HAL_GPIO_EXTI_IRQHandler() from stm32l0xx_it.c and implement
HAL_GPIO_EXTI_Callback().
The table below describes the GPIO_InitTypeDef structure field.
Table 12: Description of GPIO_InitTypeDef structure
Structure
field
Description
Pin
Specifies the GPIO pins to be configured.
Possible values: GPIO_PIN_x or GPIO_PIN_All, where x[0..15]
Mode
Specifies the operating mode for the selected pins: GPIO mode or EXTI mode.
Possible values are:
GPIO mode
GPIO_MODE_INPUT : Input floating
GPIO_MODE_OUTPUT_PP : Output push-pull
GPIO_MODE_OUTPUT_OD : Output open drain
GPIO_MODE_AF_PP : Alternate function push-pull
GPIO_MODE_AF_OD : Alternate function open drain
GPIO_MODE_ANALOG : Analog mode
External Interrupt mode
GPIO_MODE_IT_RISING : Rising edge trigger detection
GPIO_MODE_IT_FALLING : Falling edge trigger detection
GPIO_MODE_IT_RISING_FALLING : Rising/Falling edge trigger detection
External Event mode
GPIO_MODE_EVT_RISING : Rising edge trigger detection
GPIO_MODE_EVT_FALLING : Falling edge trigger detection
GPIO_MODE_EVT_RISING_FALLING: Rising/Falling edge trigger
detection
Pull
Specifies the Pull-up or Pull-down activation for the selected pins.
Possible values are:
GPIO_NOPULL
GPIO_PULLUP
GPIO_PULLDOWN
Speed
Specifies the speed for the selected pins
Possible values are:
GPIO_SPEED_FREQ_LOW
GPIO_SPEED_FREQ_MEDIUM
GPIO_SPEED_FREQ_HIGH
GPIO_SPEED_FREQ_VERY_HIGH
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Structure
field
Description
Alternate
Peripheral to be connected to the selected pins.
Possible values: GPIO_AFx_PPP, where
AFx: is the alternate function index
PPP: is the peripheral instance
Example: use GPIO_AF1_TIM1 to connect TIM1 IOs on AF1.
These values are defined in the GPIO extended driver, since the AF mapping may
change between product lines.
Refer to the “Alternate function mapping” table in the datasheets
for the detailed description of the system and peripheral I/O
alternate functions.
Please find below typical GPIO configuration examples:
Configuring GPIOs as output push-pull to drive external LEDs
GPIO_InitStruct.Pin = GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; HAL_GPIO_Init(GPIOD,
&GPIO_InitStruct);
Configuring PA0 as external interrupt with falling edge sensitivity:
GPIO_InitStructure.Mode = GPIO_MODE_IT_FALLING;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Pin = GPIO_PIN_0;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
Configuring USART1 Tx (PA9, mapped on AF4) as alternate function:
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
2.11.3 Cortex NVIC and SysTick timer
The Cortex HAL driver, stm32l0xx_hal_cortex.c, provides APIs to handle NVIC and
SysTick. The supported APIs include:
HAL_NVIC_SetPriority()
HAL_NVIC_EnableIRQ()/HAL_NVIC_DisableIRQ()
HAL_NVIC_SystemReset()
HAL_SYSTICK_IRQHandler()
HAL_NVIC_GetPendingIRQ() / HAL_NVIC_SetPendingIRQ () /
HAL_NVIC_ClearPendingIRQ()
HAL_SYSTICK_Config()
HAL_SYSTICK_CLKSourceConfig()
HAL_SYSTICK_Callback()
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2.11.4 PWR
The PWR HAL driver handles power management. The features shared between all
STM32 Series are listed below:
PVD configuration, enabling/disabling and interrupt handling
HAL_PWR_PVDConfig()
HAL_PWR_EnablePVD() / HAL_PWR_DisablePVD()
HAL_PWR_PVD_IRQHandler()
HAL_PWR_PVDCallback()
Wakeup pin configuration
HAL_PWR_EnableWakeUpPin() / HAL_PWR_DisableWakeUpPin()
Low-power mode entry
HAL_PWR_EnterSLEEPMode()
HAL_PWR_EnterSTOPMode()
HAL_PWR_EnterSTANDBYMode()
Depending on the STM32 Series, extension functions are available in
stm32l0xx_hal_pwr_ex. Here are a few examples (the list is not exhaustive)
Ultra low-power mode control
HAL_PWREx_EnableUltraLowPower() / HAL_PWREx_DisableUltraLowPower()
HAL_PWREx_EnableLowPowerRunMode() /
HAL_PWREx_DisableLowPowerRunMode()
2.11.5 EXTI
The EXTI is not considered as a standalone peripheral but rather as a service used by
other peripheral. As a result there are no EXTI APIs but each peripheral HAL driver
implements the associated EXTI configuration and EXTI function are implemented as
macros in its header file.
The first 16 EXTI lines connected to the GPIOs are managed within the GPIO driver. The
GPIO_InitTypeDef structure allows configuring an I/O as external interrupt or external
event.
The EXTI lines connected internally to the PVD, RTC, USB, and COMP are configured
within the HAL drivers of these peripheral through the macros given in the table below. The
EXTI internal connections depend on the targeted STM32 microcontroller (refer to the
product datasheet for more details):
Table 13: Description of EXTI configuration macros
Macros
Description
PPP_EXTI_LINE_FUNCTION
Defines the EXTI line connected to the internal peripheral.
Example:
#define PWR_EXTI_LINE_PVD ((uint32_t)0x00010000)
/*!<External interrupt line 16 Connected to the PVD EXTI
Line */
__HAL_PPP_EXTI_ENABLE_IT(__EXTI_LINE__)
Enables a given EXTI line
Example:
__HAL_PVD_EXTI_ENABLE_IT(PWR_EXTI_LINE_PVD)
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Macros
Description
__HAL_PPP_EXTI_DISABLE_IT(__EXTI_LINE__)
Disables a given EXTI line.
Example:
__HAL_PVD_EXTI_DISABLE_IT(PWR_EXTI_LINE_PVD)
__HAL_PPP_EXTI_GET_FLAG(__EXTI_LINE__)
Gets a given EXTI line interrupt flag pending bit status.
Example:
__HAL_PVD_EXTI_GET_FLAG(PWR_EXTI_LINE_PVD)
__HAL_PPP_EXTI_CLEAR_FLAG(__EXTI_LINE_
_)
Clears a given EXTI line interrupt flag pending bit.
Example;
__HAL_PVD_EXTI_CLEAR_FLAG(PWR_EXTI_LINE_PV
D)
__HAL_PPP_EXTI_GENERATE_SWIT
(__EXTI_LINE__)
Generates a software interrupt for a given EXTI line.
Example:
__HAL_PVD_EXTI_ GENERATE_SWIT
(PWR_EXTI_LINE_PVD)
If the EXTI interrupt mode is selected, the user application must call
HAL_PPP_FUNCTION_IRQHandler() (for example HAL_PWR_PVD_IRQHandler()), from
stm32l0xx_it.c file, and implement HAL_PPP_FUNCTIONCallback() callback function (for
example HAL_PWR_PVDCallback().
2.11.6 DMA
The DMA HAL driver allows enabling and configuring the peripheral to be connected to the
DMA Channels (except for internal SRAM/FLASH memory which do not require any
initialization). Refer to the product reference manual for details on the DMA request
corresponding to each peripheral.
For a given stream, HAL_DMA_Init() API allows programming the required configuration
through the following parameters:
Transfer Direction
Source and Destination data formats
Circular, Normal or peripheral flow control mode
Channels Priority level
Source and Destination Increment mode
FIFO mode and its Threshold (if needed)
Burst mode for Source and/or Destination (if needed).
Two operating modes are available:
Polling mode I/O operation
a. Use HAL_DMA_Start() to start DMA transfer when the source and destination
addresses and the Length of data to be transferred have been configured.
b. Use HAL_DMA_PollForTransfer() to poll for the end of current transfer. In this
case a fixed timeout can be configured depending on the user application.
Interrupt mode I/O operation
a. Configure the DMA interrupt priority using HAL_NVIC_SetPriority()
b. Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ()
c. Use HAL_DMA_Start_IT() to start DMA transfer when the source and destination
addresses and the length of data to be transferred have been confgured. In this
case the DMA interrupt is configured.
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d. Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt
subroutine
e. When data transfer is complete, HAL_DMA_IRQHandler() function is executed
and a user function can be called by customizing XferCpltCallback and
XferErrorCallback function pointer (i.e. a member of DMA handle structure).
Additional functions and macros are available to ensure efficient DMA management:
Use HAL_DMA_GetState() function to return the DMA state and
HAL_DMA_GetError() in case of error detection.
Use HAL_DMA_Abort() function to abort the current transfer
The most used DMA HAL driver macros are the following:
__HAL_DMA_ENABLE: enablse the specified DMA Channels.
__HAL_DMA_DISABLE: disables the specified DMA Channels.
__HAL_DMA_GET_FLAG: gets the DMA Channels pending flags.
__HAL_DMA_CLEAR_FLAG: clears the DMA Channels pending flags.
__HAL_DMA_ENABLE_IT: enables the specified DMA Channels interrupts.
__HAL_DMA_DISABLE_IT: disables the specified DMA Channels interrupts.
__HAL_DMA_GET_IT_SOURCE: checks whether the specified DMA stream interrupt
has occurred or not.
When a peripheral is used in DMA mode, the DMA initialization should be done in
the HAL_PPP_MspInit() callback. In addition, the user application should
associate the DMA handle to the PPP handle (refer to section “HAL IO operation
functions”).
DMA channel callbacks need to be initialized by the user application only in case
of memory-to-memory transfer. However when peripheral-to-memory transfers
are used, these callbacks are automatically initialized by calling a process API
function that uses the DMA.
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2.12 How to use HAL drivers
2.12.1 HAL usage models
The following figure shows the typical use of the HAL driver and the interaction between
the application user, the HAL driver and the interrupts.
Figure 7: HAL driver model
Basically, the HAL driver APIs are called from user files and optionally from interrupt
handlers file when the APIs based on the DMA or the PPP peripheral dedicated interrupts
are used (see green blocks in the above schematics).
When DMA or PPP peripheral interrupts are used, the PPP process complete callbacks are
called to inform the user about the process completion in real-time event mode (interrupts).
Note that the same process completion callbacks are used for DMA in interrupt mode (see
blue and red blocks in the above schematics).
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2.12.2 HAL initialization
2.12.2.1 HAL global initialization
In addition to the peripheral initialization and de-initialization functions, a set of APIs are
provided to initialize the HAL core implemented in file stm32l0xx_hal.c.
HAL_Init(): this function must be called at application startup to
initialize data/instruction cache and pre-fetch queue
set SysTick timer to generate an interrupt each 1ms (based on HSI clock) with
the lowest priority
call HAL_MspInit() user callback function to perform system level initializations
(Clock, GPIOs, DMA, interrupts). HAL_MspInit() is defined as “weak” empty
function in the HAL drivers.
HAL_DeInit()
resets all peripherals
calls function HAL_MspDeInit() which a is user callback function to do system
level De-Initalizations.
HAL_GetTick(): this function gets current SysTick counter value (incremented in
SysTick interrupt) used by peripherals drivers to handle timeouts.
HAL_Delay(). this function implements a delay (expressed in milliseconds) using the
SysTick timer.
Care must be taken when using HAL_Delay() since this function provides an accurate
delay (expressed in milliseconds) based on a variable incremented in SysTick ISR.
This means that if HAL_Delay() is called from a peripheral ISR, then the SysTick
interrupt must have highest priority (numerically lower) than the peripheral interrupt,
otherwise the caller ISR will be blocked.
2.12.2.2 System clock initialization
The clock configuration is done at the beginning of the user code. However the user can
change the configuration of the clock in the application code. Please find below the typical
Clock configuration sequence:
void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
/* Enable MSI Oscillator */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_5;
RCC_OscInitStruct.MSICalibrationValue=0x00;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
{
/* Initialization Error */
while(1);
}
/* Select MSI as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks
dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK |
RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0)!= HAL_OK)
{
/* Initialization Error */
while(1);
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}
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the
maximum system frequency, to update the voltage scaling value regarding system
frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/* Disable Power Control clock */
__HAL_RCC_PWR_CLK_DISABLE();
}
2.12.2.3 HAL MSP initialization process
The peripheral initialization is done through HAL_PPP_Init() while the hardware resources
initialization used by a peripheral (PPP) is performed during this initialization by calling
MSP callback function HAL_PPP_MspInit().
The MspInit callback performs the low level initialization related to the different additional
hardware resources: RCC, GPIO, NVIC and DMA.
All the HAL drivers with handles include two MSP callbacks for initialization and de-
initialization:
/**
* @brief Initializes the PPP MSP.
* @param hppp: PPP handle
* @retval None */
void __weak HAL_PPP_MspInit(PPP_HandleTypeDef *hppp) {
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_PPP_MspInit could be implemented in the user file */
}
/**
* @brief DeInitializes PPP MSP.
* @param hppp: PPP handle
* @retval None */
void __weak HAL_PPP_MspDeInit(PPP_HandleTypeDef *hppp) {
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_PPP_MspDeInit could be implemented in the user file */
}
The MSP callbacks are declared empty as weak functions in each peripheral driver. The
user can use them to set the low level initialization code or omit them and use his own
initialization routine.
The HAL MSP callback is implemented inside the stm32l0xx_hal_msp.c file in the user
folders. An stm32l0xx_hal_msp.c file template is located in the HAL folder and should be
copied to the user folder. It can be generated automatically by STM32CubeMX tool and
further modified. Note that all the routines are declared as weak functions and could be
overwritten or removed to use user low level initialization code.
stm32l0xx_hal_msp.c file contains the following functions:
Table 14: MSP functions
Routine
Description
void HAL_MspInit()
Global MSP initialization routine
void HAL_MspDeInit()
Global MSP de-initialization routine
void HAL_PPP_MspInit()
PPP MSP initialization routine
void HAL_PPP_MspDeInit()
PPP MSP de-initialization routine
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By default, if no peripheral needs to be de-initialized during the program execution, the
whole MSP initialization is done in Hal_MspInit() and MSP De-Initialization in the
Hal_MspDeInit(). In this case the HAL_PPP_MspInit() and HAL_PPP_MspDeInit() are not
implemented.
When one or more peripherals needs to be de-initialized in run time and the low level
resources of a given peripheral need to be released and used by another peripheral,
HAL_PPP_MspDeInit() and HAL_PPP_MspInit() are implemented for the concerned
peripheral and other peripherals initialization and de-Initialization are kept in the global
HAL_MspInit() and the HAL_MspDeInit().
If there is nothing to be initialized by the global HAL_MspInit() and HAL_MspDeInit(), the
two routines can simply be omitted.
2.12.3 HAL IO operation process
The HAL functions with internal data processing like Transmit, Receive, Write and Read
are generally provided with three data processing modes as follows:
Polling mode
Interrupt mode
DMA mode
2.12.3.1 Polling mode
In Polling mode, the HAL functions return the process status when the data processing in
blocking mode is complete. The operation is considered complete when the function
returns the HAL_OK status, otherwise an error status is returned. The user can get more
information through the HAL_PPP_GetState() function. The data processing is handled
internally in a loop. A timeout (expressed in ms) is used to prevent process hanging.
The example below shows the typical Polling mode processing sequence :
HAL_StatusTypeDef HAL_PPP_Transmit ( PPP_HandleTypeDef * phandle, uint8_t pData,
int16_tSize,uint32_tTimeout)
{
if((pData == NULL ) || (Size == 0))
{
return HAL_ERROR;
}
(…) while (data processing is running)
{
if( timeout reached )
{
return HAL_TIMEOUT;
}
}
(…)
return HELIAC; }
2.12.3.2 Interrupt mode
In Interrupt mode, the HAL function returns the process status after starting the data
processing and enabling the appropriate interruption. The end of the operation is indicated
by a callback declared as a weak function. It can be customized by the user to be informed
in real-time about the process completion. The user can also get the process status
through the HAL_PPP_GetState() function.
In Interrupt mode, four functions are declared in the driver:
HAL_PPP_Process_IT(): launch the process
HAL_PPP_IRQHandler(): the global PPP peripheral interruption
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__weak HAL_PPP_ProcessCpltCallback (): the callback relative to the process
completion.
__weak HAL_PPP_ProcessErrorCallback(): the callback relative to the process Error.
To use a process in Interrupt mode, HAL_PPP_Process_IT() is called in the user file and
HAL_PPP_IRQHandler in stm32l0xx_it.c.
The HAL_PPP_ProcessCpltCallback() function is declared as weak function in the driver.
This means that the user can declare it again in the application. The function in the driver is
not modified.
An example of use is illustrated below:
main.c file:
UART_HandleTypeDef UartHandle;
int main(void)
{
/* Set User Parameters */
UartHandle.Init.BaudRate = 9600;
UartHandle.Init.WordLength = UART_DATABITS_8;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX;
UartHandle.Init.Instance = USART1;
HAL_UART_Init(&UartHandle);
HAL_UART_SendIT(&UartHandle, TxBuffer, sizeof(TxBuffer));
while (1);
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
}
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
{
}
stm32l0xx_it.cfile:
extern UART_HandleTypeDef UartHandle;
void USART1_IRQHandler(void)
{
HAL_UART_IRQHandler(&UartHandle);
}
2.12.3.3 DMA mode
In DMA mode, the HAL function returns the process status after starting the data
processing through the DMA and after enabling the appropriate DMA interruption. The end
of the operation is indicated by a callback declared as a weak function and can be
customized by the user to be informed in real-time about the process completion. The user
can also get the process status through the HAL_PPP_GetState() function. For the DMA
mode, three functions are declared in the driver:
HAL_PPP_Process_DMA(): launch the process
HAL_PPP_DMA_IRQHandler(): the DMA interruption used by the PPP peripheral
__weak HAL_PPP_ProcessCpltCallback(): the callback relative to the process
completion.
__weak HAL_PPP_ErrorCpltCallback(): the callback relative to the process Error.
To use a process in DMA mode, HAL_PPP_Process_DMA() is called in the user file and
the HAL_PPP_DMA_IRQHandler() is placed in the stm32l0xx_it.c. When DMA mode is
used, the DMA initialization is done in the HAL_PPP_MspInit() callback. The user should
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also associate the DMA handle to the PPP handle. For this purpose, the handles of all the
peripheral drivers that use the DMA must be declared as follows:
typedef struct
{
PPP_TypeDef *Instance; /* Register base address */
PPP_InitTypeDef Init; /* PPP communication parameters */
HAL_StateTypeDef State; /* PPP communication state */
(…)
DMA_HandleTypeDef *hdma; /* associated DMA handle */
} PPP_HandleTypeDef;
The initialization is done as follows (UART example):
int main(void)
{
/* Set User Parameters */
UartHandle.Init.BaudRate = 9600;
UartHandle.Init.WordLength = UART_DATABITS_8;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX;
UartHandle.Init.Instance = UART1;
HAL_UART_Init(&UartHandle);
(..)
}
void HAL_USART_MspInit (UART_HandleTypeDef * huart)
{
static DMA_HandleTypeDef hdma_tx;
static DMA_HandleTypeDef hdma_rx;
(…)
__HAL_LINKDMA(UartHandle, DMA_Handle_tx, hdma_tx);
__HAL_LINKDMA(UartHandle, DMA_Handle_rx, hdma_rx);
(…)
}
The HAL_PPP_ProcessCpltCallback() function is declared as weak function in the driver
that means, the user can declare it again in the application code. The function in the driver
should not be modified.
An example of use is illustrated below:
main.c file:
UART_HandleTypeDef UartHandle;
int main(void)
{
/* Set User Paramaters */
UartHandle.Init.BaudRate = 9600;
UartHandle.Init.WordLength = UART_DATABITS_8;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX; UartHandle.Init.Instance = USART1;
HAL_UART_Init(&UartHandle);
HAL_UART_Send_DMA(&UartHandle, TxBuffer, sizeof(TxBuffer));
while (1);
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *phuart)
{
}
void HAL_UART_TxErrorCallback(UART_HandleTypeDef *phuart)
{
}
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stm32l0xx_it.c file:
extern UART_HandleTypeDef UartHandle;
void DMAx_IRQHandler(void)
{
HAL_DMA_IRQHandler(&UartHandle.DMA_Handle_tx);
}
HAL_USART_TxCpltCallback() and HAL_USART_ErrorCallback() should be linked in the
HAL_PPP_Process_DMA() function to the DMA transfer complete callback and the DMA
transfer Error callback by using the following statement:
HAL_PPP_Process_DMA (PPP_HandleTypeDef *hppp, Params….)
{
(…)
hppp->DMA_Handle->XferCpltCallback = HAL_UART_TxCpltCallback ;
hppp->DMA_Handle->XferErrorCallback = HAL_UART_ErrorCallback ;
(…)
}
2.12.4 Timeout and error management
2.12.4.1 Timeout management
The timeout is often used for the APIs that operate in polling mode. It defines the delay
during which a blocking process should wait till an error is returned. An example is provided
below:
HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t
CompleteLevel, uint32_t Timeout)
The timeout possible value are the following:
Table 15: Timeout values
Timeout value
Description
0
No poll : Immediate process check and exit
1 ... (HAL_MAX_DELAY -1)(1)
Timeout in ms
HAL_MAX_DELAY
Infinite poll till process is successful
Notes:
(1)HAL_MAX_DELAY is defined in the stm32l0xx_hal_def.h as 0xFFFFFFFF
However, in some cases, a fixed timeout is used for system peripherals or internal HAL
driver processes. In these cases, the timeout has the same meaning and is used in the
same way, except when it is defined locally in the drivers and cannot be modified or
introduced as an argument in the user application.
Example of fixed timeout:
#define LOCAL_PROCESS_TIMEOUT 100
HAL_StatusTypeDef HAL_PPP_Process(PPP_HandleTypeDef)
{
uint32_t tickstart = 0;
(…)
tickstart = HAL_GetTick();
(…)
while(ProcessOngoing)
{
(…)
if((HAL_GetTick()- tickstart)> LOCAL_PROCESS_TIMEOUT)
{
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/* Process unlocked */
__HAL_UNLOCK(hppp);
hppp->State= HAL_PPP_STATE_TIMEOUT;
return HAL_PPP_STATE_TIMEOUT;
}
}
(…)
}
The following example shows how to use the timeout inside the polling functions:
HAL_PPP_StateTypeDef HAL_PPP_Poll (PPP_HandleTypeDef *hppp, uint32_t Timeout)
{
uint32_t tickstart = 0;
(…)
tickstart = HAL_GetTick();
(…)
while(ProcessOngoing)
{
(…)
if(Timeout != HAL_MAX_DELAY)
{
if((HAL_GetTick()- tickstart )> Timeout)
{
/* Process unlocked */
__HAL_UNLOCK(hppp);
hppp->State= HAL_PPP_STATE_TIMEOUT;
return hppp->State;
}
}
(…)
}
2.12.4.2 Error management
The HAL drivers implement a check on the following items:
Valid parameters: for some process the used parameters should be valid and already
defined, otherwise the system may crash or go into an undefined state. These critical
parameters are checked before being used (see example below).
HAL_StatusTypeDef HAL_PPP_Process(PPP_HandleTypeDef* hppp, uint32_t *pdata, uint32
Size)
{ if ((pData == NULL ) || (Size == 0))
{ return HAL_ERROR;
}
}
Valid handle: the PPP peripheral handle is the most important argument since it keeps
the PPP driver vital parameters. It is always checked in the beginning of the
HAL_PPP_Init() function.
HAL_StatusTypeDef HAL_PPP_Init(PPP_HandleTypeDef* hppp)
{ if (hppp == NULL) //the handle should be already allocated
{ return HAL_ERROR;
}
}
Timeout error: the following statement is used when a timeout error occurs:
while (Process ongoing)
{
timeout = HAL_GetTick() + Timeout;
while (data processing is running)
{
if(timeout)
{ return HAL_TIMEOUT;
}
}
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When an error occurs during a peripheral process, HAL_PPP_Process () returns with a
HAL_ERROR status. The HAL PPP driver implements the HAL_PPP_GetError () to allow
retrieving the origin of the error.
HAL_PPP_ErrorTypeDef HAL_PPP_GetError (PPP_HandleTypeDef *hppp);
In all peripheral handles, a HAL_PPP_ErrorTypeDef is defined and used to store the last
error code.
typedef struct
{
PPP_TypeDef * Instance; /* PPP registers base address */
PPP_InitTypeDef Init; /* PPP initialization parameters */
HAL_LockTypeDef Lock; /* PPP locking object */
__IO HAL_PPP_StateTypeDef State; /* PPP state */
__IO HAL_PPP_ErrorTypeDef ErrorCode; /* PPP Error code */
(…)
/* PPP specific parameters */
}
PPP_HandleTypeDef;
The error state and the peripheral global state are always updated before returning an
error:
PPP->State = HAL_PPP_READY; /* Set the peripheral ready */
PP->ErrorCode = HAL_ERRORCODE ; /* Set the error code */
_HAL_UNLOCK(PPP) ; /* Unlock the PPP resources */
return HAL_ERROR; /*return with HAL error */
HAL_PPP_GetError () must be used in interrupt mode in the error callback:
void HAL_PPP_ProcessCpltCallback(PPP_HandleTypeDef *hspi)
{
ErrorCode = HAL_PPP_GetError (hppp); /* retreive error code */
}
2.12.4.3 Run-time checking
The HAL implements run-time failure detection by checking the input values of all HAL
driver functions. The run-time checking is achieved by using an assert_param macro. This
macro is used in all the HAL drivers' functions which have an input parameter. It allows
verifying that the input value lies within the parameter allowed values.
To enable the run-time checking, use the assert_param macro, and leave the define
USE_FULL_ASSERT uncommented in stm32l0xx_hal_conf.h file.
void HAL_UART_Init(UART_HandleTypeDef *huart)
{
(..) /* Check the parameters */
assert_param(IS_UART_INSTANCE(huart->Instance));
assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
assert_param(IS_UART_PARITY(huart->Init.Parity));
assert_param(IS_UART_MODE(huart->Init.Mode));
assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
(..)
/** @defgroup UART_Word_Length *
@{
*/
#define UART_WORDLENGTH_8B ((uint32_t)0x00000000)
#define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) ||
\ ((LENGTH) == UART_WORDLENGTH_9B))
If the expression passed to the assert_param macro is false, theassert_failed function is
called and returns the name of the source file and the source line number of the call that
failed. If the expression is true, no value is returned.
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The assert_param macro is implemented in stm32l0xx_hal_conf.h:
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None */
#define assert_param(expr) ((expr)?(void)0:assert_failed((uint8_t *)__FILE__,
__LINE__))
/* Exported functions --------------------------------------*/
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr)((void)0)
#endif /* USE_FULL_ASSERT */
The assert_failed function is implemented in the main.c file or in any other user C file:
#ifdef USE_FULL_ASSERT /**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None */
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
Because of the overhead run-time checking introduces, it is recommended
to use it during application code development and debugging, and to
remove it from the final application to improve code size and speed.
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3 Overview of Low Layer drivers
The Low Layer (LL) drivers are designed to offer a fast light-weight expert-oriented layer
which is closer to the hardware than the HAL. Contrary to the HAL, LL APIs are not
provided for peripherals where optimized access is not a key feature, or those requiring
heavy software configuration and/or complex upper-level stack (such as USB).
The LL drivers feature:
A set of functions to initialize peripheral main features according to the parameters
specified in data structures
A set of functions used to fill initialization data structures with the reset values of each
field
Functions to perform peripheral de-initialization (peripheral registers restored to their
default values)
A set of inline functions for direct and atomic register access
Full independence from HAL since LL drivers can be used either in standalone mode
(without HAL drivers) or in mixed mode (with HAL drivers)
Full coverage of the supported peripheral features.
The Low Layer drivers provide hardware services based on the available features of the
STM32 peripherals. These services reflect exactly the hardware capabilities and provide
one-shot operations that must be called following the programming model described in the
microcontroller line reference manual. As a result, the LL services do not implement any
processing and do not require any additional memory resources to save their states,
counter or data pointers: all the operations are performed by changing the associated
peripheral registers content.
3.1 Low Layer files
The Low Layer drivers are built around header/C files (one per each supported peripheral)
plus five header files for some System and Cortex related features.
Table 16: LL driver files
File
Description
stm32l0xx_ll_bus.h
This is the h-source file for core bus control and peripheral clock
activation and deactivation
Example: LL_AHB1_GRP1_EnableClock
stm32l0xx_ll_ppp.h/.c
stm32l0xx_ll_ppp.c provides peripheral initialization functions such as
LL_PPP_Init(), LL_PPP_StructInit(), LL_PPP_DeInit(). All the other APIs
are definined within stm32l0xx_ll_ppp.h file.
The Low Layer PPP driver is a standalone module. To use it, the
application must include it in the stm32l0xx_ll_ppp.h file.
stm32l0xx_ll_cortex.h
Cortex-M related register operation APIs including the Systick, Low
power (LL_SYSTICK_xxxxx, LL_LPM_xxxxx "Low Power Mode" ...)
stm32l0xx_ll_utils.h/.c
This file covers the generic APIs:
Read of device unique ID and electronic signature
Timebase and delay management
System clock configuration.
stm32l0xx_ll_system.h
System related operations (LL_SYSCFG_xxx, LL_DBGMCU_xxx and
LL_FLASH_xxx)
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File
Description
stm32_assert_template.h
Template file allowing to define the assert_param macro, that is used
when run-time checking is enabled.
This file is required only when the LL drivers are used in standalone
mode (without calling the HAL APIs). It should be copied to the
application folder and renamed to stm32_assert.h.
There is no configuration file for the LL drivers.
The Low Layer files are located in the same HAL driver folder.
Figure 8: Low Layer driver folders
In general, Low Layer drivers include only the STM32 CMSIS device file.
#include "stm32yyxx.h"
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Figure 9: Low Layer driver CMSIS files
Application files have to include only the used Low Layer drivers header files.
3.2 Overview of Low Layer APIs and naming rules
3.2.1 Peripheral initialization functions
The LL drivers offer three sets of initialization functions. They are defined in
stm32l0xx_ll_ppp.c file:
Functions to initialize peripheral main features according to the parameters specified
in data structures
A set of functions used to fill initialization data structures with the reset values of each
field
Function for peripheral de-initialization (peripheral registers restored to their default
values).
The definition of these LL initialization functions and associated resources (structure,
literals and prototypes) is conditioned by a compilation switch: USE_FULL_LL_DRIVER. To
use these functions, this switch must be added in the toolchain compiler preprocessor or to
any generic header file which is processed before the LL drivers.
The below table shows the list of the common functions provided for all the supported
peripherals:
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Table 17: Common peripheral initialization functions
Functions
Return type
Parameters
Description
LL_PPP_Init
ErrorStatus
PPP_TypeDef*
PPPx
LL_PPP_InitTy
peDef*
PPP_InitStruct
Initializes the peripheral main features
according to the parameters specified in
PPP_InitStruct.
Example: LL_USART_Init(USART_TypeDef
*USARTx, LL_USART_InitTypeDef
*USART_InitStruct)
LL_PPP_
StructInit
void
LL_PPP_InitTy
peDef*
PPP_InitStruct
Fills each PPP_InitStruct member with its
default value.
Example.
LL_USART_StructInit(LL_USART_InitType
Def *USART_InitStruct)
LL_PPP_
DeInit
ErrorStatus
PPP_TypeDef*
PPPx
De-initializes the peripheral registers, that is
restore them to their default reset values.
Example.
LL_USART_DeInit(USART_TypeDef
*USARTx)
Additional functions are available for some peripherals (refer to Table 18: "Optional
peripheral initialization functions" ).
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Table 18: Optional peripheral initialization functions
Functions
Return type
Parameters
Examples
LL_PPP{_
CATEGORY}_Init
ErrorStatus
PPP_TypeDef
* PPPx
LL_PPP{_CAT
EGORY}_InitT
ypeDef*
PPP{_CATEG
ORY}_InitStru
ct
Initializes peripheral features
according to the parameters specified
in PPP_InitStruct.
Example:
LL_RTC_TIME_Init(RTC_TypeDef
*RTCx, uint32_t RTC_Format,
LL_RTC_TimeTypeDef
*RTC_TimeStruct)
LL_RTC_DATE_Init(RTC_TypeDef
*RTCx, uint32_t RTC_Format,
LL_RTC_DateTypeDef
*RTC_DateStruct)
LL_TIM_IC_Init(TIM_TypeDef* TIMx,
uint32_t Channel,
LL_TIM_IC_InitTypeDef*
TIM_IC_InitStruct)
LL_TIM_ENCODER_Init(TIM_TypeDef
* TIMx,
LL_TIM_ENCODER_InitTypeDef*
TIM_EncoderInitStruct)
LL_PPP{_
CATEGORY}_Struct
Init
void
LL_PPP{_CATEGO
RY}_InitTypeDef*
PPP{_CATEGORY}
_InitStruct
Fills each
PPP{_CATEGORY}_InitStruct member
with its default value.
Example:
LL_RTC_TIME_StructInit(LL_RTC_Ti
meTypeDef *RTC_TimeStruct);
LL_PPP_Common
Init
ErrorStatus
PPP_TypeDef
* PPPx
LL_PPP_Com
monInitTypeD
ef*
PPP_Commo
nInitStruct
Initializes the common features shared
between different instances of the
same peripheral.
Example:
LL_ADC_CommonInit(ADC_Common
_TypeDef *ADCxy_COMMON,
LL_ADC_CommonInitTypeDef
*ADC_CommonInitStruct)
LL_PPP_Common
StructInit
void
LL_PPP_CommonI
nitTypeDef*
PPP_CommonInitSt
ruct
Fills each PPP_CommonInitStruct
member with its default value
Example:
LL_ADC_CommonStructInit(LL_ADC_
CommonInitTypeDef
*ADC_CommonInitStruct)
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Functions
Return type
Parameters
Examples
LL_PPP_ClockInit
ErrorStatus
PPP_TypeDef
* PPPx
LL_PPP_Cloc
kInitTypeDef*
PPP_ClockInit
Struct
Initializes the peripheral clock
configuration in synchronous mode.
Example:
LL_USART_ClockInit(USART_TypeDe
f *USARTx,
LL_USART_ClockInitTypeDef
*USART_ClockInitStruct)
LL_PPP_ClockStruc
tInit
void
LL_PPP_ClockInitT
ypeDef*
PPP_ClockInitStruc
t
Fills each PPP_ClockInitStruct
member with its default value
Example:
LL_USART_ClockStructInit(LL_USAR
T_ClockInitTypeDef
*USART_ClockInitStruct)
3.2.1.1 Run-time checking
Like HAL drivers, LL initialization functions implement run-time failure detection by
checking the input values of all LL drivers functions. For more details please refer to
Section 2.12.4.3: "Run-time checking".
When using the LL drivers in standalone mode (without calling HAL functions), the
following actions are required to use run-time checking:
1. Copy stm32_assert_template.h to the application folder and rename it to
stm32_assert.h. This file defines the assert_param macro which is used when run-
time checking is enabled.
2. Include stm32_assert.h file within the application main header file.
3. Add the USE_FULL_ASSERT compilation switch in the toolchain compiler
preprocessor or in any generic header file which is processed before the
stm32_assert.h driver.
Run-time checking is not available for LL inline functions.
3.2.2 Register-level peripheral configuration functions
On top of the peripheral initialization functions, the LL drivers offer a set of inline functions
for direct atomic register access. Their format is as follows:
__STATIC_INLINE return_type LL_PPP_Function (PPPx_TypeDef *PPPx, args)
The “Function” naming is defined depending to the action category:
Specific Interrupt, DMA request and status flags management:
Set/Get/Clear/Enable/Disable flags on interrupt and status registers
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Table 19: Specific Interrupt, DMA request and status flags management
Name
Examples
LL_PPP_{_CATEGORY}_ActionItem_BITNAME
LL_PPP{_CATEGORY}_IsItem_BITNAME_Action
LL_RCC_IsActiveFlag_LSIRDY
LL_RCC_IsActiveFlag_FWRST()
LL_ADC_ClearFlag_EOC(ADC1)
LL_DMA_ClearFlag_TCx(DMA_TypeDef* DMAx)
Table 20: Available function formats
Item
Action
Format
Flag
Get
LL_PPP_IsActiveFlag_BITNAME
Clear
LL_PPP_ClearFlag_BITNAME
Interrupts
Enable
LL_PPP_EnableIT_BITNAME
Disable
LL_PPP_DisableIT_BITNAME
Get
LL_PPP_IsEnabledIT_BITNAME
DMA
Enable
LL_PPP_EnableDMAReq_BITNAME
Disable
LL_PPP_DisableDMAReq_BITNAME
Get
LL_PPP_IsEnabledDMAReq_BITNAME
BITNAME refers to the peripheral register bit name as described in the product
line reference manual.
Peripheral clock activation/deactivation management: Enable/Disable/Reset a
peripheral clock
Table 21: Peripheral clock activation/deactivation management
Name
Examples
LL_bus_GRPx_ActionClock{Mode}
LL_IOP_GRP1_EnableClock
(LL_IOP_GRP1_PERIPH_GPIOA|LL_IOP_GRP1_PERIPH_GPIOB)
LL_APB1_GRP1_EnableClockSleep
(LL_APB1_GRP1_PERIPH_DAC1)
'x' corresponds to the group index and refers to the index of the modified register
on a given bus.
'bus' refers to the bus name (eg APB1).
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Peripheral activation/deactivation management: Enable/disable a peripheral or
activate/deactivate specific peripheral features
Table 22: Peripheral activation/deactivation management
Name
Examples
LL_PPP{_CATEGORY}_Action{Item}
LL_PPP{_CATEGORY}_IsItemAction
LL_ADC_Enable ()
LL_ADC_StartCalibration();
LL_ADC_IsCalibrationOnGoing;
LL_RCC_HSI_Enable ()
LL_RCC_HSI_IsReady()
Peripheral configuration management: Set/get a peripheral configuration settings
Table 23: Peripheral configuration management
Name
Examples
LL_PPP{_CATEGORY}_Set{ or
Get}ConfigItem
LL_USART_SetBaudRate (USART2, 16000000,
LL_USART_OVERSAMPLING_16, 9600)
Peripheral register management: Write/read the content of a register/retrun DMA
relative register address
Table 24: Peripheral register management
Name
LL_PPP_WriteReg(__INSTANCE__, __REG__, __VALUE__)
LL_PPP_ReadReg(__INSTANCE__, __REG__)
LL_PPP_DMA_GetRegAddr (PPP_TypeDef *PPPx,{Sub Instance if any ex: Channel} , {uint32_t Propriety})
The Propriety is a variable used to identify the DMA transfer direction or the data
register type.
Cohabiting of HAL and LL
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4 Cohabiting of HAL and LL
The Low Layer is designed to be used in standalone mode or combined with the HAL. It
cannot be automatically used with the HAL for the same peripheral instance. If you use the
LL APIs for a specific instance, you can still use the HAL APIs for other instances. Be
careful that the Low Layer might overwrite some registers which content is mirrored in the
HAL handles.
4.1 Low Layer driver used in standalone mode
The Low Layer APIs can be used without calling the HAL driver services. This is done by
simply including stm32l0xx_ll_ppp.h in the application files. The LL APIs for a given
peripheral are called by executing the same sequence as the one recommended by the
programming model in the corresponding product line reference manual. In this case the
HAL drivers associated to the used peripheral can be removed from the workspace.
However the STM32CubeL0 framework should be used in the same way as in the HAL
drivers case which means that System file, startup file and CMSIS should always be used.
When the BSP drivers are included, the used HAL drivers associated with the
BSP functions drivers should be included in the workspace, even if they are not
used by the application layer.
4.2 Mixed use of Low Layer APIs and HAL drivers
In this case the Low Layer APIs are used in conjunction with the HAL drivers to achieve
direct and register level based operations.
Mixed use is allowed, however some consideration should be taken into account:
It is recommended to avoid using simultaneously the HAL APIs and the combination of
Low Layer APIs for a given peripheral instance. If this is the case, one or more private
fields in the HAL PPP handle structure should be updated accordingly.
For operations and processes that do not alter the handle fields including the
initialization structure, the HAL driver APIs and the Low Layer services can be used
together for the same peripheral instance.
The Low Layer drivers can be used without any restriction with all the HAL drivers that
are not based on handle objects (RCC, common HAL, flash and GPIO).
Several examples showing how to use HAL and LL in the same application are provided
within stm32l0 firmware package (refer to Examples_MIX projects).
1. When the HAL Init/DeInit APIs are not used and are replaced by the Low
Layer macros, the InitMsp() functions are not called and the MSP
initialization should be done in the user application.
2. When process APIs are not used and the corresponding function is
performed through the Low Layer APIs, the callbacks are not called and post
processing or error management should be done by the user application.
3. When the LL APIs is used for process operations, the IRQ handler HAL APIs
cannot be called and the IRQ should be implemented by the user application.
Each LL driver implements the macros needed to read and clear the
associated interrupt flags.
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5 HAL System Driver
5.1 HAL Firmware driver API description
5.1.1 How to use this driver
The common HAL driver contains a set of generic and common APIs that can be used by
the PPP peripheral drivers and the user to start using the HAL.
The HAL contains two APIs categories:
Common HAL APIs
Services HAL APIs
5.1.2 Initialization and de-initialization functions
This section provides functions allowing to:
Initializes the Flash interface, the NVIC allocation and initial clock configuration. It
initializes the source of timebase also when timeout is needed and the backup domain
when enabled.
de-Initializes common part of the HAL.
Configure The timebase source to have 1ms timebase with a dedicated Tick interrupt
priority.
Systick timer is used by default as source of timebase, but user can eventually
implement his proper timebase source (a general purpose timer for example or
other time source), keeping in mind that Time base duration should be kept 1ms
since PPP_TIMEOUT_VALUEs are defined and handled in milliseconds basis.
Time base configuration function (HAL_InitTick ()) is called automatically at the
beginning of the program after reset by HAL_Init() or at any time when clock is
configured, by HAL_RCC_ClockConfig().
Source of timebase is configured to generate interrupts at regular time intervals.
Care must be taken if HAL_Delay() is called from a peripheral ISR process, the
Tick interrupt line must have higher priority (numerically lower) than the
peripheral interrupt. Otherwise the caller ISR process will be blocked.
functions affecting timebase configurations are declared as __weak to make
override possible in case of other implementations in user file.
This section contains the following APIs:
HAL_Init()
HAL_DeInit()
HAL_MspInit()
HAL_MspDeInit()
HAL_InitTick()
5.1.3 HAL Control functions
This section provides functions allowing to:
Provide a tick value in millisecond
Provide a blocking delay in millisecond
Suspend the timebase source interrupt
Resume the timebase source interrupt
Get the HAL API driver version
Get the device identifier
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Get the device revision identifier
Configure low power mode behavior when the MCU is in Debug mode
Manage the VEREFINT feature (activation, lock, output selection)
This section contains the following APIs:
HAL_IncTick()
HAL_GetTick()
HAL_Delay()
HAL_SuspendTick()
HAL_ResumeTick()
HAL_GetHalVersion()
HAL_GetREVID()
HAL_GetDEVID()
HAL_DBGMCU_EnableDBGSleepMode()
HAL_DBGMCU_DisableDBGSleepMode()
HAL_DBGMCU_EnableDBGStopMode()
HAL_DBGMCU_DisableDBGStopMode()
HAL_DBGMCU_EnableDBGStandbyMode()
HAL_DBGMCU_DisableDBGStandbyMode()
HAL_DBGMCU_DBG_EnableLowPowerConfig()
HAL_DBGMCU_DBG_DisableLowPowerConfig()
HAL_SYSCFG_GetBootMode()
HAL_SYSCFG_VREFINT_OutputSelect()
HAL_SYSCFG_Enable_Lock_VREFINT()
HAL_SYSCFG_Disable_Lock_VREFINT()
5.1.4 Detailed description of functions
HAL_Init
Function name
HAL_StatusTypeDef HAL_Init (void )
Function description
This function configures the Flash prefetch, Flash preread and
Buffer cache, Configures timebase source, NVIC and Low level
hardware.
Return values
HAL: status
Notes
This function is called at the beginning of program after reset
and before the clock configuration
The timebase configuration is based on MSI clock when
exiting from Reset. Once done, timebase tick start
incrementing. In the default implementation,Systick is used as
source of timebase. the tick variable is incremented each 1ms
in its ISR.
HAL_DeInit
Function name
HAL_StatusTypeDef HAL_DeInit (void )
Function description
This function de-Initializes common part of the HAL and stops the
source of timebase.
Return values
HAL: status
Notes
This function is optional.
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HAL_MspInit
Function name
void HAL_MspInit (void )
Function description
Initializes the MSP.
Return values
None
HAL_MspDeInit
Function name
void HAL_MspDeInit (void )
Function description
DeInitializes the MSP.
Return values
None
HAL_InitTick
Function name
HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority)
Function description
This function configures the source of the timebase.
Parameters
TickPriority: Tick interrupt priority.
Return values
HAL: status
Notes
This function is called automatically at the beginning of
program after reset by HAL_Init() or at any time when clock is
reconfigured by HAL_RCC_ClockConfig().
In the default implementation, SysTick timer is the source of
timebase. It is used to generate interrupts at regular time
intervals. Care must be taken if HAL_Delay() is called from a
peripheral ISR process, The the SysTick interrupt must have
higher priority (numerically lower) than the peripheral
interrupt. Otherwise the caller ISR process will be blocked.
The function is declared as __Weak to be overwritten in case
of other implementation in user file.
HAL_IncTick
Function name
void HAL_IncTick (void )
Function description
This function is called to increment a global variable "uwTick" used
as application timebase.
Return values
None
Notes
In the default implementation, this variable is incremented
each 1ms in Systick ISR.
This function is declared as __weak to be overwritten in case
of other implementations in user file.
HAL_Delay
Function name
void HAL_Delay (__IO uint32_t Delay)
Function description
This function provides accurate delay (in ms) based on a variable
incremented.
Parameters
Delay: specifies the delay time length, in milliseconds.
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Return values
None
Notes
In the default implementation , SysTick timer is the source of
timebase. It is used to generate interrupts at regular time
intervals where uwTick is incremented.
ThiS function is declared as __weak to be overwritten in case
of other implementations in user file.
HAL_GetTick
Function name
uint32_t HAL_GetTick (void )
Function description
Provides a tick value in millisecond.
Return values
tick: value
Notes
This function is declared as __weak to be overwritten in case
of other implementations in user file.
HAL_SuspendTick
Function name
void HAL_SuspendTick (void )
Function description
Suspends the Tick increment.
Return values
None
Notes
In the default implementation , SysTick timer is the source of
timebase. It is used to generate interrupts at regular time
intervals. Once HAL_SuspendTick() is called, the the SysTick
interrupt will be disabled and so Tick increment is suspended.
This function is declared as __weak to be overwritten in case
of other implementations in user file.
HAL_ResumeTick
Function name
void HAL_ResumeTick (void )
Function description
Resumes the Tick increment.
Return values
None
Notes
In the default implementation , SysTick timer is the source of
timebase. It is used to generate interrupts at regular time
intervals. Once HAL_ResumeTick() is called, the the SysTick
interrupt will be enabled and so Tick increment is resumed.
This function is declared as __weak to be overwritten in case
of other implementations in user file.
HAL_GetHalVersion
Function name
uint32_t HAL_GetHalVersion (void )
Function description
Returns the HAL revision.
Return values
version: 0xXYZR (8bits for each decimal, R for RC)
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HAL_GetREVID
Function name
uint32_t HAL_GetREVID (void )
Function description
Returns the device revision identifier.
Return values
Device: revision identifier
HAL_GetDEVID
Function name
uint32_t HAL_GetDEVID (void )
Function description
Returns the device identifier.
Return values
Device: identifier
HAL_DBGMCU_EnableDBGSleepMode
Function name
void HAL_DBGMCU_EnableDBGSleepMode (void )
Function description
Enables the Debug Module during SLEEP mode.
Return values
None
HAL_DBGMCU_DisableDBGSleepMode
Function name
void HAL_DBGMCU_DisableDBGSleepMode (void )
Function description
Disables the Debug Module during SLEEP mode.
Return values
None
HAL_DBGMCU_EnableDBGStopMode
Function name
void HAL_DBGMCU_EnableDBGStopMode (void )
Function description
Enables the Debug Module during STOP mode.
Return values
None
HAL_DBGMCU_DisableDBGStopMode
Function name
void HAL_DBGMCU_DisableDBGStopMode (void )
Function description
Disables the Debug Module during STOP mode.
Return values
None
HAL_DBGMCU_EnableDBGStandbyMode
Function name
void HAL_DBGMCU_EnableDBGStandbyMode (void )
Function description
Enables the Debug Module during STANDBY mode.
Return values
None
HAL_DBGMCU_DisableDBGStandbyMode
Function name
void HAL_DBGMCU_DisableDBGStandbyMode (void )
Function description
Disables the Debug Module during STANDBY mode.
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Return values
None
HAL_DBGMCU_DBG_EnableLowPowerConfig
Function name
void HAL_DBGMCU_DBG_EnableLowPowerConfig (uint32_t
Periph)
Function description
Enable low power mode behavior when the MCU is in Debug
mode.
Parameters
Periph: specifies the low power mode. This parameter can
be any combination of the following values:
DBGMCU_SLEEP: Keep debugger connection during
SLEEP mode
DBGMCU_STOP: Keep debugger connection during
STOP mode
DBGMCU_STANDBY: Keep debugger connection during
STANDBY mode
Return values
None
HAL_DBGMCU_DBG_DisableLowPowerConfig
Function name
void HAL_DBGMCU_DBG_DisableLowPowerConfig (uint32_t
Periph)
Function description
Disable low power mode behavior when the MCU is in Debug
mode.
Parameters
Periph: specifies the low power mode. This parameter can
be any combination of the following values:
DBGMCU_SLEEP: Keep debugger connection during
SLEEP mode
DBGMCU_STOP: Keep debugger connection during
STOP mode
DBGMCU_STANDBY: Keep debugger connection during
STANDBY mode
Return values
None
HAL_SYSCFG_GetBootMode
Function name
uint32_t HAL_SYSCFG_GetBootMode (void )
Function description
Returns the boot mode as configured by user.
Return values
The: boot mode as configured by user. The returned value
can be one of the following values:
0x00000000 : Boot is configured in Main Flash memory
0x00000100 : Boot is configured in System Flash
memory
0x00000300 : Boot is configured in Embedded SRAM
memory
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HAL_SYSCFG_Enable_Lock_VREFINT
Function name
void HAL_SYSCFG_Enable_Lock_VREFINT (void )
Function description
Lock the SYSCFG VREF register values.
Return values
None
HAL_SYSCFG_Disable_Lock_VREFINT
Function name
void HAL_SYSCFG_Disable_Lock_VREFINT (void )
Function description
Unlock the overall SYSCFG VREF register values.
Return values
None
HAL_SYSCFG_VREFINT_OutputSelect
Function name
void HAL_SYSCFG_VREFINT_OutputSelect (uint32_t
SYSCFG_Vrefint_OUTPUT)
Function description
Selects the output of internal reference voltage (VREFINT).
Parameters
SYSCFG_Vrefint_OUTPUT: new state of the Vrefint output.
This parameter can be one of the following values:
SYSCFG_VREFINT_OUT_NONE
SYSCFG_VREFINT_OUT_PB0
SYSCFG_VREFINT_OUT_PB1
SYSCFG_VREFINT_OUT_PB0_PB1
Return values
None
5.2 HAL Firmware driver defines
5.2.1 HAL
DBGMCU Low Power Configuration
DBGMCU_SLEEP
DBGMCU_STOP
DBGMCU_STANDBY
IS_DBGMCU_PERIPH
HAL Exported Macros
__HAL_DBGMCU_FREEZE_TIM2
TIM2 Peripherals Debug mode
__HAL_DBGMCU_UNFREEZE_TIM2
__HAL_DBGMCU_FREEZE_TIM3
__HAL_DBGMCU_UNFREEZE_TIM3
__HAL_DBGMCU_FREEZE_TIM6
__HAL_DBGMCU_UNFREEZE_TIM6
__HAL_DBGMCU_FREEZE_TIM7
__HAL_DBGMCU_UNFREEZE_TIM7
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__HAL_DBGMCU_FREEZE_RTC
__HAL_DBGMCU_UNFREEZE_RTC
__HAL_DBGMCU_FREEZE_WWDG
__HAL_DBGMCU_UNFREEZE_WWDG
__HAL_DBGMCU_FREEZE_IWDG
__HAL_DBGMCU_UNFREEZE_IWDG
__HAL_DBGMCU_FREEZE_I2C1_TIMEOUT
__HAL_DBGMCU_UNFREEZE_I2C1_TIME
OUT_DBGMCU
__HAL_DBGMCU_FREEZE_I2C2_TIMEOUT
_DBGMCU
__HAL_DBGMCU_UNFREEZE_I2C2_TIME
OUT_DBGMCU
__HAL_DBGMCU_FREEZE_I2C3_TIMEOUT
__HAL_DBGMCU_UNFREEZE_I2C3_TIME
OUT
__HAL_DBGMCU_FREEZE_LPTIMER
__HAL_DBGMCU_UNFREEZE_LPTIMER
__HAL_DBGMCU_FREEZE_TIM22
__HAL_DBGMCU_UNFREEZE_TIM22
__HAL_DBGMCU_FREEZE_TIM21
__HAL_DBGMCU_UNFREEZE_TIM21
__HAL_SYSCFG_REMAPMEMORY_FLASH
__HAL_SYSCFG_REMAPMEMORY_SYSTE
MFLASH
__HAL_SYSCFG_REMAPMEMORY_SRAM
__HAL_SYSCFG_DBG_LP_CONFIG
Description:
Configuration of the DBG Low Power
mode.
Parameters:
__DBGLPMODE__: bit field to
indicate in wich Low Power mode
DBG is still active. This parameter
can be a value of
DBGMCU_SLEEP
DBGMCU_STOP
DBGMCU_STANDBY
__HAL_SYSCFG_VLCD_CAPA_CONFIG
Description:
Macro to configure the VLCD
Decoupling capacitance connection.
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Parameters:
__SYSCFG_VLCD_CAPA__:
specifies the decoupling of LCD
capacitance for rails connection on
GPIO. This parameter can be a
combination of following values
(when available):
SYSCFG_VLCD_PB2_EXT_CA
PA_ON: Connection on PB2
SYSCFG_VLCD_PB12_EXT_C
APA_ON: Connection on PB12
SYSCFG_VLCD_PB0_EXT_CA
PA_ON: Connection on PB0
SYSCFG_VLCD_PE11_EXT_C
APA_ON: Connection on PE11
SYSCFG_VLCD_PE12_EXT_C
APA_ON: Connection on PE12
Return value:
None
__HAL_SYSCFG_GET_VLCD_CAPA_
CONFIG
Description:
Returns the decoupling of LCD
capacitance configured by user.
Return value:
The: LCD capacitance connection as
configured by user. The returned can
be a combination of :
SYSCFG_VLCD_PB2_EXT_CAPA_
ON: Connection on PB2
SYSCFG_VLCD_PB12_EXT_CAPA_
ON: Connection on PB12
SYSCFG_VLCD_PB0_EXT_CAPA_
ON: Connection on PB0
SYSCFG_VLCD_PE11_EXT_CAPA_
ON: Connection on PE11
SYSCFG_VLCD_PE12_EXT_CAPA_
ON: Connection on PE12
__HAL_SYSCFG_GET_BOOT_MODE
Description:
Returns the boot mode as configured
by user.
Return value:
The: boot mode as configured by
user. The returned can be a value of :
SYSCFG_BOOT_MAINFLASH
SYSCFG_BOOT_SYSTEMFLA
SH
SYSCFG_BOOT_SRAM
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__HAL_SYSCFG_GET_FLAG
Description:
Check whether the specified
SYSCFG flag is set or not.
Parameters:
__FLAG__: specifies the flag to
check. The only parameter supported
is
SYSCFG_FLAG_VREFINT_READY
Return value:
The: new state of __FLAG__ (TRUE
or FALSE).
__HAL_SYSCFG_FASTMODEPLUS_
ENABLE
Description:
Fast mode Plus driving capability
enable macro.
Parameters:
__FASTMODEPLUS__: This
parameter can be a value of :
SYSCFG_FASTMODEPLUS_P
B6
SYSCFG_FASTMODEPLUS_P
B7
SYSCFG_FASTMODEPLUS_P
B8
SYSCFG_FASTMODEPLUS_P
B9
__HAL_SYSCFG_FASTMODEPLUS_
DISABLE
Description:
Fast mode Plus driving capability
disable macro.
Parameters:
__FASTMODEPLUS__: This
parameter can be a value of :
SYSCFG_FASTMODEPLUS_P
B6
SYSCFG_FASTMODEPLUS_P
B7
SYSCFG_FASTMODEPLUS_P
B8
SYSCFG_FASTMODEPLUS_P
B9
HAL state definition
HAL_SMBUS_STATE_RESET
SMBUS not yet initialized or disabled
HAL_SMBUS_STATE_READY
SMBUS initialized and ready for use
HAL_SMBUS_STATE_BUSY
SMBUS internal process is ongoing
HAL_SMBUS_STATE_MASTER_BUSY_TX
Master Data Transmission process is
ongoing
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HAL_SMBUS_STATE_MASTER_BUSY_RX
Master Data Reception process is ongoing
HAL_SMBUS_STATE_SLAVE_BUSY_TX
Slave Data Transmission process is
ongoing
HAL_SMBUS_STATE_SLAVE_BUSY_RX
Slave Data Reception process is ongoing
HAL_SMBUS_STATE_TIMEOUT
Timeout state
HAL_SMBUS_STATE_ERROR
Reception process is ongoing
HAL_SMBUS_STATE_LISTEN
Address Listen Mode is ongoing
HAL Version
__STM32L0xx_HAL_VERSION_MAIN
[31:24] main version
__STM32L0xx_HAL_VERSION_SUB1
[23:16] sub1 version
__STM32L0xx_HAL_VERSION_SUB2
[15:8] sub2 version
__STM32L0xx_HAL_VERSION_RC
[7:0] release candidate
__STM32L0xx_HAL_VERSION
IDCODE_DEVID_MASK
Boot Mode
SYSCFG_BOOT_MAINFLASH
SYSCFG_BOOT_SYSTEMFLASH
SYSCFG_BOOT_SRAM
Fast Mode Plus on GPIO
SYSCFG_FASTMODEPLUS_PB6
SYSCFG_FASTMODEPLUS_PB7
SYSCFG_FASTMODEPLUS_PB8
SYSCFG_FASTMODEPLUS_PB9
IS_SYSCFG_FASTMODEPLUS
SYSCFG Flags Definition
SYSCFG_FLAG_VREFINT_READY
IS_SYSCFG_FLAG
SYSCFG LCD External Capacitors
SYSCFG_LCD_EXT_CAPA
Connection of internal Vlcd rail to external
capacitors
SYSCFG_VLCD_PB2_EXT_CAPA_ON
Connection on PB2
SYSCFG_VLCD_PB12_EXT_CAPA_ON
Connection on PB12
SYSCFG_VLCD_PB0_EXT_CAPA_ON
Connection on PB0
SYSCFG_VLCD_PE11_EXT_CAPA_ON
Connection on PE11
SYSCFG_VLCD_PE12_EXT_CAPA_ON
Connection on PE12
SYSCFG VREFINT Out Selection
SYSCFG_VREFINT_OUT_NONE
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SYSCFG_VREFINT_OUT_PB0
SYSCFG_VREFINT_OUT_PB1
SYSCFG_VREFINT_OUT_PB0_PB1
IS_SYSCFG_VREFINT_OUT_SELECT
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6 HAL ADC Generic Driver
6.1 ADC Firmware driver registers structures
6.1.1 ADC_OversamplingTypeDef
Data Fields
uint32_t Ratio
uint32_t RightBitShift
uint32_t TriggeredMode
Field Documentation
uint32_t ADC_OversamplingTypeDef::Ratio
Configures the oversampling ratio. This parameter can be a value of
ADC_Oversampling_Ratio
uint32_t ADC_OversamplingTypeDef::RightBitShift
Configures the division coefficient for the Oversampler. This parameter can be a value
of ADC_Right_Bit_Shift
uint32_t ADC_OversamplingTypeDef::TriggeredMode
Selects the regular triggered oversampling mode. This parameter can be a value of
ADC_Triggered_Oversampling_Mode
6.1.2 ADC_InitTypeDef
Data Fields
uint32_t ClockPrescaler
uint32_t Resolution
uint32_t DataAlign
uint32_t ScanConvMode
uint32_t EOCSelection
uint32_t LowPowerAutoWait
uint32_t LowPowerAutoPowerOff
uint32_t ContinuousConvMode
uint32_t DiscontinuousConvMode
uint32_t ExternalTrigConv
uint32_t ExternalTrigConvEdge
uint32_t DMAContinuousRequests
uint32_t Overrun
uint32_t LowPowerFrequencyMode
uint32_t SamplingTime
uint32_t OversamplingMode
ADC_OversamplingTypeDef Oversample
Field Documentation
uint32_t ADC_InitTypeDef::ClockPrescaler
Select ADC clock source (synchronous clock derived from APB clock or asynchronous
clock derived from ADC dedicated HSI RC oscillator) and clock prescaler. This
parameter can be a value of ADC_ClockPrescaler. Note: In case of synchronous
clock mode based on HCLK/1, the configuration must be enabled only if the system
clock has a 50% duty clock cycle (APB prescaler configured inside RCC must be
bypassed and PCLK clock must have 50% duty cycle). Refer to reference manual for
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details. Note: In case of usage of the ADC dedicated HSI RC oscillator, it must be
preliminarily enabled at RCC top level. Note: This parameter can be modified only if
the ADC is disabled.
uint32_t ADC_InitTypeDef::Resolution
Configure the ADC resolution. This parameter can be a value of ADC_Resolution
uint32_t ADC_InitTypeDef::DataAlign
Specify ADC data alignment in conversion data register (right or left). Refer to
reference manual for alignments formats versus resolutions. This parameter can be a
value of ADC_Data_align
uint32_t ADC_InitTypeDef::ScanConvMode
Configure the sequencer of regular group. This parameter can be associated to
parameter 'DiscontinuousConvMode' to have main sequence subdivided in successive
parts. Sequencer is automatically enabled if several channels are set (sequencer
cannot be disabled, as it can be the case on other STM32 devices): If only 1 channel
is set: Conversion is performed in single mode. If several channels are set:
Conversions are performed in sequence mode (ranks defined by each channel
number: channel 0 fixed on rank 0, channel 1 fixed on rank1, ...). Scan direction can
be set to forward (from channel 0 to channel 18) or backward (from channel 18 to
channel 0). This parameter can be a value of ADC_Scan_mode
uint32_t ADC_InitTypeDef::EOCSelection
Specify which EOC (End Of Conversion) flag is used for conversion by polling and
interruption: end of unitary conversion or end of sequence conversions. This
parameter can be a value of ADC_EOCSelection.
uint32_t ADC_InitTypeDef::LowPowerAutoWait
Select the dynamic low power Auto Delay: new conversion start only when the
previous conversion (for ADC group regular) has been retrieved by user software,
using function HAL_ADC_GetValue(). This feature automatically adapts the
frequency of ADC conversions triggers to the speed of the system that reads the data.
Moreover, this avoids risk of overrun for low frequency applications. This parameter
can be set to ENABLE or DISABLE. Note: Do not use with interruption or DMA
(HAL_ADC_Start_IT(), HAL_ADC_Start_DMA()) since they clear immediately the
EOC flag to free the IRQ vector sequencer. Do use with polling: 1. Start conversion
with HAL_ADC_Start(), 2. Later on, when ADC conversion data is needed: use
HAL_ADC_PollForConversion() to ensure that conversion is completed and
HAL_ADC_GetValue() to retrieve conversion result and trig another conversion start.
uint32_t ADC_InitTypeDef::LowPowerAutoPowerOff
Select the auto-off mode: the ADC automatically powers-off after a conversion and
automatically wakes-up when a new conversion is triggered (with startup time
between trigger and start of sampling). This feature can be combined with automatic
wait mode (parameter 'LowPowerAutoWait'). This parameter can be set to ENABLE or
DISABLE. Note: If enabled, this feature also turns off the ADC dedicated 14 MHz RC
oscillator (HSI14)
uint32_t ADC_InitTypeDef::ContinuousConvMode
Specify whether the conversion is performed in single mode (one conversion) or
continuous mode for ADC group regular, after the first ADC conversion start trigger
occurred (software start or external trigger). This parameter can be set to ENABLE or
DISABLE.
uint32_t ADC_InitTypeDef::DiscontinuousConvMode
Specify whether the conversions sequence of ADC group regular is performed in
Complete-sequence/Discontinuous-sequence (main sequence subdivided in
successive parts). Discontinuous mode is used only if sequencer is enabled
(parameter 'ScanConvMode'). If sequencer is disabled, this parameter is discarded.
Discontinuous mode can be enabled only if continuous mode is disabled. If continuous
mode is enabled, this parameter setting is discarded. This parameter can be set to
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ENABLE or DISABLE. Note: On this STM32 serie, ADC group regular number of
discontinuous ranks increment is fixed to one-by-one.
uint32_t ADC_InitTypeDef::ExternalTrigConv
Select the external event source used to trigger ADC group regular conversion start. If
set to ADC_SOFTWARE_START, external triggers are disabled and software trigger
is used instead. This parameter can be a value of
ADC_regular_external_trigger_source. Caution: external trigger source is common
to all ADC instances.
uint32_t ADC_InitTypeDef::ExternalTrigConvEdge
Select the external event edge used to trigger ADC group regular conversion start. If
trigger source is set to ADC_SOFTWARE_START, this parameter is discarded. This
parameter can be a value of ADC_regular_external_trigger_edge
uint32_t ADC_InitTypeDef::DMAContinuousRequests
Specify whether the DMA requests are performed in one shot mode (DMA transfer
stops when number of conversions is reached) or in continuous mode (DMA transfer
unlimited, whatever number of conversions). This parameter can be set to ENABLE or
DISABLE. Note: In continuous mode, DMA must be configured in circular mode.
Otherwise an overrun will be triggered when DMA buffer maximum pointer is reached.
uint32_t ADC_InitTypeDef::Overrun
Select the behavior in case of overrun: data overwritten or preserved (default). This
parameter can be a value of ADC_Overrun. Note: In case of overrun set to data
preserved and usage with programming model with interruption (HAL_Start_IT()):
ADC IRQ handler has to clear end of conversion flags, this induces the release of the
preserved data. If needed, this data can be saved in function
HAL_ADC_ConvCpltCallback(), placed in user program code (called before end of
conversion flags clear). Note: Error reporting with respect to the conversion
mode:Usage with ADC conversion by polling for event or interruption: Error is reported
only if overrun is set to data preserved. If overrun is set to data overwritten, user can
willingly not read all the converted data, this is not considered as an erroneous
case.Usage with ADC conversion by DMA: Error is reported whatever overrun setting
(DMA is expected to process all data from data register).
uint32_t ADC_InitTypeDef::LowPowerFrequencyMode
When selecting an analog ADC clock frequency lower than 2.8MHz, it is mandatory to
first enable the Low Frequency Mode. This parameter can be set to ENABLE or
DISABLE. Note: This parameter can be modified only if there is no conversion is
ongoing.
uint32_t ADC_InitTypeDef::SamplingTime
The sample time common to all channels. Unit: ADC clock cycles This parameter can
be a value of ADC_sampling_times Note: This parameter can be modified only if
there is no conversion ongoing.
uint32_t ADC_InitTypeDef::OversamplingMode
Specify whether the oversampling feature is enabled or disabled. This parameter can
be set to ENABLE or DISABLE. Note: This parameter can be modified only if there is
no conversion is ongoing on ADC group regular.
ADC_OversamplingTypeDef ADC_InitTypeDef::Oversample
Specify the Oversampling parameters Caution: this setting overwrites the previous
oversampling configuration if oversampling is already enabled.
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6.1.3 ADC_ChannelConfTypeDef
Data Fields
uint32_t Channel
uint32_t Rank
Field Documentation
uint32_t ADC_ChannelConfTypeDef::Channel
Specify the channel to configure into ADC regular group. This parameter can be a
value of ADC_channels Note: Depending on devices, some channels may not be
available on device package pins. Refer to device datasheet for channels availability.
uint32_t ADC_ChannelConfTypeDef::Rank
Add or remove the channel from ADC regular group sequencer. On STM32L0
devices, number of ranks in the sequence is defined by number of channels enabled,
rank of each channel is defined by channel number (channel 0 fixed on rank 0,
channel 1 fixed on rank1, ...). Despite the channel rank is fixed, this parameter allow
an additional possibility: to remove the selected rank (selected channel) from
sequencer. This parameter can be a value of ADC_rank
6.1.4 ADC_AnalogWDGConfTypeDef
Data Fields
uint32_t WatchdogMode
uint32_t Channel
uint32_t ITMode
uint32_t HighThreshold
uint32_t LowThreshold
Field Documentation
uint32_t ADC_AnalogWDGConfTypeDef::WatchdogMode
Configure the ADC analog watchdog mode: single/all channels. This parameter can
be a value of ADC_analog_watchdog_mode
uint32_t ADC_AnalogWDGConfTypeDef::Channel
Select which ADC channel to monitor by analog watchdog. This parameter has an
effect only if watchdog mode is configured on single channel (parameter
WatchdogMode) This parameter can be a value of ADC_channels
uint32_t ADC_AnalogWDGConfTypeDef::ITMode
Specify whether the analog watchdog is configured in interrupt or polling mode. This
parameter can be set to ENABLE or DISABLE
uint32_t ADC_AnalogWDGConfTypeDef::HighThreshold
Configures the ADC analog watchdog High threshold value. Depending of ADC
resolution selected (12, 10, 8 or 6 bits), this parameter must be a number between
Min_Data = 0x000 and Max_Data = 0xFFF, 0x3FF, 0xFF or 0x3F respectively.
uint32_t ADC_AnalogWDGConfTypeDef::LowThreshold
Configures the ADC analog watchdog High threshold value. Depending of ADC
resolution selected (12, 10, 8 or 6 bits), this parameter must be a number between
Min_Data = 0x000 and Max_Data = 0xFFF, 0x3FF, 0xFF or 0x3F respectively.
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6.1.5 ADC_HandleTypeDef
Data Fields
ADC_TypeDef * Instance
ADC_InitTypeDef Init
DMA_HandleTypeDef * DMA_Handle
HAL_LockTypeDef Lock
__IO uint32_t State
__IO uint32_t ErrorCode
Field Documentation
ADC_TypeDef* ADC_HandleTypeDef::Instance
Register base address
ADC_InitTypeDef ADC_HandleTypeDef::Init
ADC required parameters
DMA_HandleTypeDef* ADC_HandleTypeDef::DMA_Handle
Pointer DMA Handler
HAL_LockTypeDef ADC_HandleTypeDef::Lock
ADC locking object
__IO uint32_t ADC_HandleTypeDef::State
ADC communication state (bitmap of ADC states)
__IO uint32_t ADC_HandleTypeDef::ErrorCode
ADC Error code
6.2 ADC Firmware driver API description
6.2.1 ADC peripheral features
12-bit, 10-bit, 8-bit or 6-bit configurable resolution.
Interrupt generation at the end of regular conversion and in case of analog watchdog
or overrun events.
Single and continuous conversion modes.
Scan mode for conversion of several channels sequentially.
Data alignment with in-built data coherency.
Programmable sampling time (common for all channels)
External trigger (timer or EXTI) with configurable polarity
DMA request generation for transfer of conversions data of regular group.
ADC calibration
ADC conversion of regular group.
ADC supply requirements: 1.62 V to 3.6 V.
ADC input range: from Vref- (connected to Vssa) to Vref+ (connected to Vdda or to an
external voltage reference).
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6.2.2 How to use this driver
Configuration of top level parameters related to ADC
1. Enable the ADC interface
As prerequisite, ADC clock must be configured at RCC top level. Caution: On
STM32L0, ADC clock frequency max is 16MHz (refer to device datasheet).
Therefore, ADC clock prescaler must be configured in function of ADC clock
source frequency to remain below this maximum frequency.
Two clock settings are mandatory:
ADC clock (core clock, also possibly conversion clock).
ADC clock (conversions clock). Two possible clock sources: synchronous
clock derived from APB clock or asynchronous clock derived from ADC
dedicated HSI RC oscillator 16MHz. If asynchronous clock is selected,
parameter "HSIState" must be set either: - to "...HSIState = RCC_HSI_ON"
to maintain the HSI16 oscillator always enabled: can be used to supply the
main system clock.
Example: Into HAL_ADC_MspInit() (recommended code location) or with
other device clock parameters configuration:
__HAL_RCC_ADC1_CLK_ENABLE(); (mandatory) HSI enable (optional: if
asynchronous clock selected)
RCC_OscInitTypeDef RCC_OscInitStructure;
RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStructure.HSI16CalibrationValue =
RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStructure.HSIState = RCC_HSI_ON;
RCC_OscInitStructure.PLL... (optional if used for system clock)
HAL_RCC_OscConfig(&RCC_OscInitStructure);
ADC clock source and clock prescaler are configured at ADC level with
parameter "ClockPrescaler" using function HAL_ADC_Init().
2. ADC pins configuration
Enable the clock for the ADC GPIOs using macro
__HAL_RCC_GPIOx_CLK_ENABLE()
Configure these ADC pins in analog mode using function HAL_GPIO_Init()
3. Optionally, in case of usage of ADC with interruptions:
Configure the NVIC for ADC using function HAL_NVIC_EnableIRQ(ADCx_IRQn)
Insert the ADC interruption handler function HAL_ADC_IRQHandler() into the
function of corresponding ADC interruption vector ADCx_IRQHandler().
4. Optionally, in case of usage of DMA:
Configure the DMA (DMA channel, mode normal or circular, ...) using function
HAL_DMA_Init().
Configure the NVIC for DMA using function
HAL_NVIC_EnableIRQ(DMAx_Channelx_IRQn)
Insert the ADC interruption handler function HAL_ADC_IRQHandler() into the
function of corresponding DMA interruption vector
DMAx_Channelx_IRQHandler().
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Configuration of ADC, group regular, channels parameters
1. Configure the ADC parameters (resolution, data alignment, ...) and regular group
parameters (conversion trigger, sequencer, ...) using function HAL_ADC_Init().
2. Configure the channels for regular group parameters (channel number, channel rank
into sequencer, ..., into regular group) using function HAL_ADC_ConfigChannel().
3. Optionally, configure the analog watchdog parameters (channels monitored,
thresholds, ...) using function HAL_ADC_AnalogWDGConfig().
4. When device is in mode low-power (low-power run, low-power sleep or stop mode),
function "HAL_ADCEx_EnableVREFINT()" must be called before function
HAL_ADC_Init(). In case of internal temperature sensor to be measured: function
"HAL_ADCEx_EnableVREFINTTempSensor()" must be called similarilly
Execution of ADC conversions
1. Optionally, perform an automatic ADC calibration to improve the conversion accuracy
using function HAL_ADCEx_Calibration_Start().
2. ADC driver can be used among three modes: polling, interruption, transfer by DMA.
ADC conversion by polling:
Activate the ADC peripheral and start conversions using function
HAL_ADC_Start()
Wait for ADC conversion completion using function
HAL_ADC_PollForConversion()
Retrieve conversion results using function HAL_ADC_GetValue()
Stop conversion and disable the ADC peripheral using function
HAL_ADC_Stop()
ADC conversion by interruption:
Activate the ADC peripheral and start conversions using function
HAL_ADC_Start_IT()
Wait for ADC conversion completion by call of function
HAL_ADC_ConvCpltCallback() (this function must be implemented in user
program)
Retrieve conversion results using function HAL_ADC_GetValue()
Stop conversion and disable the ADC peripheral using function
HAL_ADC_Stop_IT()
ADC conversion with transfer by DMA:
Activate the ADC peripheral and start conversions using function
HAL_ADC_Start_DMA()
Wait for ADC conversion completion by call of function
HAL_ADC_ConvCpltCallback() or HAL_ADC_ConvHalfCpltCallback() (these
functions must be implemented in user program)
Conversion results are automatically transferred by DMA into destination
variable address.
Stop conversion and disable the ADC peripheral using function
HAL_ADC_Stop_DMA()
Callback functions must be implemented in user program:
HAL_ADC_ErrorCallback()
HAL_ADC_LevelOutOfWindowCallback() (callback of analog watchdog)
HAL_ADC_ConvCpltCallback()
HAL_ADC_ConvHalfCpltCallback
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Deinitialization of ADC
1. Disable the ADC interface
ADC clock can be hard reset and disabled at RCC top level.
Hard reset of ADC peripherals using macro __ADCx_FORCE_RESET(),
__ADCx_RELEASE_RESET().
ADC clock disable using the equivalent macro/functions as configuration step.
Example: Into HAL_ADC_MspDeInit() (recommended code location) or with
other device clock parameters configuration:
RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStructure.HSIState = RCC_HSI_OFF; (if not used for system
clock)
HAL_RCC_OscConfig(&RCC_OscInitStructure);
2. ADC pins configuration
Disable the clock for the ADC GPIOs using macro
__HAL_RCC_GPIOx_CLK_DISABLE()
3. Optionally, in case of usage of ADC with interruptions:
Disable the NVIC for ADC using function HAL_NVIC_EnableIRQ(ADCx_IRQn)
4. Optionally, in case of usage of DMA:
Deinitialize the DMA using function HAL_DMA_Init().
Disable the NVIC for DMA using function
HAL_NVIC_EnableIRQ(DMAx_Channelx_IRQn)
6.2.3 Peripheral Control functions
This section provides functions allowing to:
Configure channels on regular group
Configure the analog watchdog
This section contains the following APIs:
HAL_ADC_ConfigChannel()
HAL_ADC_AnalogWDGConfig()
6.2.4 Peripheral state and errors functions
This subsection provides functions to get in run-time the status of the peripheral.
Check the ADC state
Check the ADC error code
This section contains the following APIs:
HAL_ADC_GetState()
HAL_ADC_GetError()
6.2.5 Detailed description of functions
HAL_ADC_Init
Function name
HAL_StatusTypeDef HAL_ADC_Init (ADC_HandleTypeDef *
hadc)
Function description
Initialize the ADC peripheral and regular group according to
parameters specified in structure "ADC_InitTypeDef".
Parameters
hadc: ADC handle
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Return values
HAL: status
Notes
As prerequisite, ADC clock must be configured at RCC top
level depending on possible clock sources: APB clock of HSI
clock. See commented example code below that can be
copied and uncommented into HAL_ADC_MspInit().
Possibility to update parameters on the fly: This function
initializes the ADC MSP (HAL_ADC_MspInit()) only when
coming from ADC state reset. Following calls to this function
can be used to reconfigure some parameters of
ADC_InitTypeDef structure on the fly, without modifying MSP
configuration. If ADC MSP has to be modified again,
HAL_ADC_DeInit() must be called before HAL_ADC_Init().
The setting of these parameters is conditioned to ADC state.
For parameters constraints, see comments of structure
"ADC_InitTypeDef".
This function configures the ADC within 2 scopes: scope of
entire ADC and scope of regular group. For parameters
details, see comments of structure "ADC_InitTypeDef".
When device is in mode low-power (low-power run, low-power
sleep or stop mode), function
"HAL_ADCEx_EnableVREFINT()" must be called before
function HAL_ADC_Init() (in case of previous ADC
operations: function HAL_ADC_DeInit() must be called first).
In case of internal temperature sensor to be measured:
function "HAL_ADCEx_EnableVREFINTTempSensor()" must
be called similarilly.
HAL_ADC_DeInit
Function name
HAL_StatusTypeDef HAL_ADC_DeInit (ADC_HandleTypeDef *
hadc)
Function description
Deinitialize the ADC peripheral registers to their default reset
values, with deinitialization of the ADC MSP.
Parameters
hadc: ADC handle
Return values
HAL: status
Notes
For devices with several ADCs: reset of ADC common
registers is done only if all ADCs sharing the same common
group are disabled. If this is not the case, reset of these
common parameters reset is bypassed without error
reporting: it can be the intended behavior in case of reset of a
single ADC while the other ADCs sharing the same common
group is still running.
HAL_ADC_MspInit
Function name
void HAL_ADC_MspInit (ADC_HandleTypeDef * hadc)
Function description
Initialize the ADC MSP.
Parameters
hadc: ADC handle
Return values
None
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HAL_ADC_MspDeInit
Function name
void HAL_ADC_MspDeInit (ADC_HandleTypeDef * hadc)
Function description
DeInitialize the ADC MSP.
Parameters
hadc: ADC handle
Return values
None
HAL_ADC_Start
Function name
HAL_StatusTypeDef HAL_ADC_Start (ADC_HandleTypeDef *
hadc)
Function description
Enable ADC, start conversion of regular group.
Parameters
hadc: ADC handle
Return values
HAL: status
Notes
Interruptions enabled in this function: None.
HAL_ADC_Stop
Function name
HAL_StatusTypeDef HAL_ADC_Stop (ADC_HandleTypeDef *
hadc)
Function description
Stop ADC conversion of regular group (and injected channels in
case of auto_injection mode), disable ADC peripheral.
Parameters
hadc: ADC handle
Return values
HAL: status.
HAL_ADC_PollForConversion
Function name
HAL_StatusTypeDef HAL_ADC_PollForConversion
(ADC_HandleTypeDef * hadc, uint32_t Timeout)
Function description
Wait for regular group conversion to be completed.
Parameters
hadc: ADC handle
Timeout: Timeout value in millisecond.
Return values
HAL: status
Notes
ADC conversion flags EOS (end of sequence) and EOC (end
of conversion) are cleared by this function, with an exception:
if low power feature "LowPowerAutoWait" is enabled, flags
are not cleared to not interfere with this feature until data
register is read using function HAL_ADC_GetValue().
This function cannot be used in a particular setup: ADC
configured in DMA mode and polling for end of each
conversion (ADC init parameter "EOCSelection" set to
ADC_EOC_SINGLE_CONV). In this case, DMA resets the
flag EOC and polling cannot be performed on each
conversion. Nevertheless, polling can still be performed on
the complete sequence (ADC init parameter "EOCSelection"
set to ADC_EOC_SEQ_CONV).
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HAL_ADC_PollForEvent
Function name
HAL_StatusTypeDef HAL_ADC_PollForEvent
(ADC_HandleTypeDef * hadc, uint32_t EventType, uint32_t
Timeout)
Function description
Poll for ADC event.
Parameters
hadc: ADC handle
EventType: the ADC event type. This parameter can be one
of the following values:
ADC_AWD_EVENT: ADC Analog watchdog event
ADC_OVR_EVENT: ADC Overrun event
Timeout: Timeout value in millisecond.
Return values
HAL: status
Notes
The relevant flag is cleared if found to be set, except for
ADC_FLAG_OVR. Indeed, the latter is reset only if hadc-
>Init.Overrun field is set to
ADC_OVR_DATA_OVERWRITTEN. Otherwise, data register
may be potentially overwritten by a new converted data as
soon as OVR is cleared. To reset OVR flag once the
preserved data is retrieved, the user can resort to macro
__HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
HAL_ADC_Start_IT
Function name
HAL_StatusTypeDef HAL_ADC_Start_IT (ADC_HandleTypeDef
* hadc)
Function description
Enable ADC, start conversion of regular group with interruption.
Parameters
hadc: ADC handle
Return values
HAL: status
Notes
Interruptions enabled in this function according to initialization
setting : EOC (end of conversion), EOS (end of sequence),
OVR overrun. Each of these interruptions has its dedicated
callback function.
To guarantee a proper reset of all interruptions once all the
needed conversions are obtained, HAL_ADC_Stop_IT() must
be called to ensure a correct stop of the IT-based
conversions.
By default, HAL_ADC_Start_IT() doesn't enable the End Of
Sampling interruption. If required (e.g. in case of
oversampling with trigger mode), the user must: 1. first clear
the EOSMP flag if set with macro
__HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_EOSMP) 2.
then enable the EOSMP interrupt with macro
__HAL_ADC_ENABLE_IT(hadc, ADC_IT_EOSMP) before
calling HAL_ADC_Start_IT().
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HAL_ADC_Stop_IT
Function name
HAL_StatusTypeDef HAL_ADC_Stop_IT (ADC_HandleTypeDef
* hadc)
Function description
Stop ADC conversion of regular group (and injected group in case
of auto_injection mode), disable interrution of end-of-conversion,
disable ADC peripheral.
Parameters
hadc: ADC handle
Return values
HAL: status.
HAL_ADC_Start_DMA
Function name
HAL_StatusTypeDef HAL_ADC_Start_DMA
(ADC_HandleTypeDef * hadc, uint32_t * pData, uint32_t
Length)
Function description
Enable ADC, start conversion of regular group and transfer result
through DMA.
Parameters
hadc: ADC handle
pData: Destination Buffer address.
Length: Length of data to be transferred from ADC
peripheral to memory (in bytes)
Return values
HAL: status.
Notes
Interruptions enabled in this function: overrun (if applicable),
DMA half transfer, DMA transfer complete. Each of these
interruptions has its dedicated callback function.
HAL_ADC_Stop_DMA
Function name
HAL_StatusTypeDef HAL_ADC_Stop_DMA
(ADC_HandleTypeDef * hadc)
Function description
Stop ADC conversion of regular group (and injected group in case
of auto_injection mode), disable ADC DMA transfer, disable ADC
peripheral.
Parameters
hadc: ADC handle
Return values
HAL: status.
HAL_ADC_GetValue
Function name
uint32_t HAL_ADC_GetValue (ADC_HandleTypeDef * hadc)
Function description
Get ADC regular group conversion result.
Parameters
hadc: ADC handle
Return values
ADC: group regular conversion data
Notes
Reading register DR automatically clears ADC flag EOC
(ADC group regular end of unitary conversion).
This function does not clear ADC flag EOS (ADC group
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regular end of sequence conversion). Occurrence of flag EOS
rising: If sequencer is composed of 1 rank, flag EOS is
equivalent to flag EOC.If sequencer is composed of several
ranks, during the scan sequence flag EOC only is raised, at
the end of the scan sequence both flags EOC and EOS are
raised. To clear this flag, either use function: in programming
model IT: HAL_ADC_IRQHandler(), in programming model
polling: HAL_ADC_PollForConversion() or
__HAL_ADC_CLEAR_FLAG(&hadc, ADC_FLAG_EOS).
HAL_ADC_IRQHandler
Function name
void HAL_ADC_IRQHandler (ADC_HandleTypeDef * hadc)
Function description
Handle ADC interrupt request.
Parameters
hadc: ADC handle
Return values
None
HAL_ADC_ConvCpltCallback
Function name
void HAL_ADC_ConvCpltCallback (ADC_HandleTypeDef *
hadc)
Function description
Conversion complete callback in non-blocking mode.
Parameters
hadc: ADC handle
Return values
None
HAL_ADC_ConvHalfCpltCallback
Function name
void HAL_ADC_ConvHalfCpltCallback (ADC_HandleTypeDef *
hadc)
Function description
Conversion DMA half-transfer callback in non-blocking mode.
Parameters
hadc: ADC handle
Return values
None
HAL_ADC_LevelOutOfWindowCallback
Function name
void HAL_ADC_LevelOutOfWindowCallback
(ADC_HandleTypeDef * hadc)
Function description
Analog watchdog 1 callback in non-blocking mode.
Parameters
hadc: ADC handle
Return values
None
HAL_ADC_ErrorCallback
Function name
void HAL_ADC_ErrorCallback (ADC_HandleTypeDef * hadc)
Function description
ADC error callback in non-blocking mode (ADC conversion with
interruption or transfer by DMA).
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Parameters
hadc: ADC handle
Return values
None
Notes
In case of error due to overrun when using ADC with DMA
transfer (HAL ADC handle paramater "ErrorCode" to state
"HAL_ADC_ERROR_OVR"): Reinitialize the DMA using
function "HAL_ADC_Stop_DMA()".If needed, restart a new
ADC conversion using function "HAL_ADC_Start_DMA()"
(this function is also clearing overrun flag)
HAL_ADC_ConfigChannel
Function name
HAL_StatusTypeDef HAL_ADC_ConfigChannel
(ADC_HandleTypeDef * hadc, ADC_ChannelConfTypeDef *
sConfig)
Function description
Configure a channel to be assigned to ADC group regular.
Parameters
hadc: ADC handle
sConfig: Structure of ADC channel assigned to ADC group
regular.
Return values
HAL: status
Notes
In case of usage of internal measurement channels:
VrefInt/Vlcd(STM32L0x3xx only)/TempSensor. Sampling time
constraints must be respected (sampling time can be adjusted
in function of ADC clock frequency and sampling time
setting). Refer to device datasheet for timings values,
parameters TS_vrefint, TS_vlcd (STM32L0x3xx only),
TS_temp (values rough order: 5us to 17us). These internal
paths can be be disabled using function HAL_ADC_DeInit().
Possibility to update parameters on the fly: This function
initializes channel into ADC group regular, following calls to
this function can be used to reconfigure some parameters of
structure "ADC_ChannelConfTypeDef" on the fly, without
resetting the ADC. The setting of these parameters is
conditioned to ADC state: Refer to comments of structure
"ADC_ChannelConfTypeDef".
HAL_ADC_AnalogWDGConfig
Function name
HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig
(ADC_HandleTypeDef * hadc, ADC_AnalogWDGConfTypeDef *
AnalogWDGConfig)
Function description
Configure the analog watchdog.
Parameters
hadc: ADC handle
AnalogWDGConfig: Structure of ADC analog watchdog
configuration
Return values
HAL: status
Notes
Possibility to update parameters on the fly: This function
initializes the selected analog watchdog, successive calls to
this function can be used to reconfigure some parameters of
structure "ADC_AnalogWDGConfTypeDef" on the fly, without
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resetting the ADC. The setting of these parameters is
conditioned to ADC state. For parameters constraints, see
comments of structure "ADC_AnalogWDGConfTypeDef".
Analog watchdog thresholds can be modified while ADC
conversion is on going. In this case, some constraints must
be taken into account: the programmed threshold values are
effective from the next ADC EOC (end of unitary conversion).
Considering that registers write delay may happen due to bus
activity, this might cause an uncertainty on the effective timing
of the new programmed threshold values.
HAL_ADC_GetState
Function name
uint32_t HAL_ADC_GetState (ADC_HandleTypeDef * hadc)
Function description
Return the ADC handle state.
Parameters
hadc: ADC handle
Return values
ADC: handle state (bitfield on 32 bits)
Notes
ADC state machine is managed by bitfields, ADC status must
be compared with states bits. For example: " if
(HAL_IS_BIT_SET(HAL_ADC_GetState(hadc1),
HAL_ADC_STATE_REG_BUSY)) " " if
(HAL_IS_BIT_SET(HAL_ADC_GetState(hadc1),
HAL_ADC_STATE_AWD1) ) "
HAL_ADC_GetError
Function name
uint32_t HAL_ADC_GetError (ADC_HandleTypeDef * hadc)
Function description
Return the ADC error code.
Parameters
hadc: ADC handle
Return values
ADC: error code (bitfield on 32 bits)
6.3 ADC Firmware driver defines
6.3.1 ADC
ADC Analog Watchdog Mode
ADC_ANALOGWATCHDOG_NONE
ADC_ANALOGWATCHDOG_SINGLE_REG
ADC_ANALOGWATCHDOG_ALL_REG
ADC_Channels
ADC_CHANNEL_0
ADC_CHANNEL_1
ADC_CHANNEL_2
ADC_CHANNEL_3
ADC_CHANNEL_4
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ADC_CHANNEL_5
ADC_CHANNEL_6
ADC_CHANNEL_7
ADC_CHANNEL_8
ADC_CHANNEL_9
ADC_CHANNEL_10
ADC_CHANNEL_11
ADC_CHANNEL_12
ADC_CHANNEL_13
ADC_CHANNEL_14
ADC_CHANNEL_15
ADC_CHANNEL_16
ADC_CHANNEL_17
ADC_CHANNEL_18
ADC_CHANNEL_VLCD
ADC_CHANNEL_VREFINT
ADC_CHANNEL_TEMPSENSOR
ADC Channel Masks
ADC_CHANNEL_MASK
ADC_CHANNEL_AWD_MASK
ADC Clock Prescaler
ADC_CLOCK_ASYNC_DIV1
ADC Asynchronous clock mode divided by 1
ADC_CLOCK_ASYNC_DIV2
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV4
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV6
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV8
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV10
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV12
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV16
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV32
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV64
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV128
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_ASYNC_DIV256
ADC Asynchronous clock mode divided by 2
ADC_CLOCK_SYNC_PCLK_DIV1
Synchronous clock mode divided by 1 This
configuration must be enabled only if PCLK has a
50% duty clock cycle (APB prescaler configured
inside the RCC must be bypassed and the system
clock must by 50% duty cycle)
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ADC_CLOCK_SYNC_PCLK_DIV2
Synchronous clock mode divided by 2
ADC_CLOCK_SYNC_PCLK_DIV4
Synchronous clock mode divided by 4
ADC Conversion Group
ADC_REGULAR_GROUP
ADC conversion data alignment
ADC_DATAALIGN_RIGHT
ADC_DATAALIGN_LEFT
ADC EOC Selection
ADC_EOC_SINGLE_CONV
ADC_EOC_SEQ_CONV
ADC_EOC_SINGLE_SEQ_CONV
reserved for future use
ADC Error Code
HAL_ADC_ERROR_NONE
No error
HAL_ADC_ERROR_INTERNAL
ADC IP internal error (problem of clocking,
enable/disable, erroneous state, ...)
HAL_ADC_ERROR_OVR
Overrun error
HAL_ADC_ERROR_DMA
DMA transfer error
ADC Event
ADC_AWD_EVENT
ADC_OVR_EVENT
ADC Exported Macros
__HAL_ADC_RESET_HANDLE_STATE
Description:
Reset ADC handle state.
Parameters:
__HANDLE__: ADC handle
Return value:
None
__HAL_ADC_ENABLE
Description:
Enable the ADC peripheral.
Parameters:
__HANDLE__: ADC handle
Return value:
None
ADC_ENABLING_CONDITIONS
Description:
Verification of hardware
constraints before ADC can be
enabled.
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Parameters:
__HANDLE__: ADC handle
Return value:
SET: (ADC can be enabled) or
RESET (ADC cannot be enabled)
__HAL_ADC_DISABLE
Description:
Disable the ADC peripheral.
Parameters:
__HANDLE__: ADC handle
Return value:
None
ADC_DISABLING_CONDITIONS
Description:
Verification of hardware
constraints before ADC can be
disabled.
Parameters:
__HANDLE__: ADC handle
Return value:
SET: (ADC can be disabled) or
RESET (ADC cannot be disabled)
ADC_IS_ENABLE
Description:
Verification of ADC state: enabled
or disabled.
Parameters:
__HANDLE__: ADC handle
Return value:
SET: (ADC enabled) or RESET
(ADC disabled)
ADC_GET_RESOLUTION
Description:
Returns resolution bits in CFGR
register: RES[1:0].
Parameters:
__HANDLE__: ADC handle
Return value:
None
ADC_IS_SOFTWARE_START_REGULAR
Description:
Test if conversion trigger of regular
group is software start or external
trigger.
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Parameters:
__HANDLE__: ADC handle
Return value:
SET: (software start) or RESET
(external trigger)
ADC_IS_CONVERSION_ONGOING_REGULAR
Description:
Check if no conversion on going
on regular group.
Parameters:
__HANDLE__: ADC handle
Return value:
SET: (conversion is on going) or
RESET (no conversion is on
going)
ADC_CONTINUOUS
Description:
Enable ADC continuous
conversion mode.
Parameters:
_CONTINUOUS_MODE_:
Continuous mode.
Return value:
None
ADC_SCANDIR
Description:
Enable ADC scan mode to convert
multiple ranks with sequencer.
Parameters:
_SCAN_MODE_: Scan conversion
mode.
Return value:
None
__HAL_ADC_CFGR1_DISCONTINUOUS_NUM
Description:
Configures the number of
discontinuous conversions for the
regular group channels.
Parameters:
_NBR_DISCONTINUOUS_CONV
_: Number of discontinuous
conversions.
Return value:
None
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ADC_DMACONTREQ
Description:
Enable the ADC DMA continuous
request.
Parameters:
_DMAContReq_MODE_: DMA
continuous request mode.
Return value:
None
__HAL_ADC_CFGR1_AutoDelay
Description:
Enable the ADC Auto Delay.
Parameters:
_AutoDelay_: Auto delay bit
enable or disable.
Return value:
None
__HAL_ADC_CFGR1_AUTOFF
Description:
Enable the ADC
LowPowerAutoPowerOff.
Parameters:
_AUTOFF_: AutoOff bit enable or
disable.
Return value:
None
ADC_TRX_HIGHTHRESHOLD
Description:
Configure the analog watchdog
high threshold into registers TR1,
TR2 or TR3.
Parameters:
_Threshold_: Threshold value
Return value:
None
__HAL_ADC_CCR_LOWFREQUENCY
Description:
Enable the ADC Low Frequency
mode.
Parameters:
_LOW_FREQUENCY_MODE_:
Low Frequency mode.
Return value:
None
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ADC_OFFSET_SHIFT_RESOLUTION
Description:
Shift the offset in function of the
selected ADC resolution.
Parameters:
__HANDLE__: ADC handle.
_Offset_: Value to be shifted
Return value:
None
ADC_AWD1THRESHOLD_SHIFT_
RESOLUTION
Description:
Shift the AWD1 threshold in
function of the selected ADC
resolution.
Parameters:
__HANDLE__: ADC handle.
_Threshold_: Value to be shifted
Return value:
None
__HAL_ADC_Value_Shift_left
Description:
Shift the value on the left, less
significant are set to 0.
Parameters:
_Value_: Value to be shifted
_Shift_: Number of shift to be done
Return value:
None
__HAL_ADC_ENABLE_IT
Description:
Enable the ADC end of conversion
interrupt.
Parameters:
__HANDLE__: ADC handle.
__INTERRUPT__: ADC Interrupt.
Return value:
None
__HAL_ADC_DISABLE_IT
Description:
Disable the ADC end of
conversion interrupt.
Parameters:
__HANDLE__: ADC handle.
__INTERRUPT__: ADC interrupt.
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Return value:
None
__HAL_ADC_GET_IT_SOURCE
Description:
Checks if the specified ADC
interrupt source is enabled or
disabled.
Parameters:
__HANDLE__: ADC handle
__INTERRUPT__: ADC interrupt
source to check
...
...
Return value:
State: of interruption (TRUE or
FALSE)
__HAL_ADC_CLEAR_FLAG
Description:
Clear the ADC's pending flags.
Parameters:
__HANDLE__: ADC handle.
__FLAG__: ADC flag.
Return value:
None
__HAL_ADC_GET_FLAG
Description:
Get the selected ADC's flag
status.
Parameters:
__HANDLE__: ADC handle.
__FLAG__: ADC flag.
Return value:
None
ADC_STATE_CLR_SET
Description:
Simultaneously clears and sets
specific bits of the handle State.
Return value:
None
Notes:
: ADC_STATE_CLR_SET() macro
is merely aliased to generic macro
MODIFY_REG(), the first
parameter is the ADC handle
State, the second parameter is the
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bit field to clear, the third and last
parameter is the bit field to set.
ADC_CLEAR_ERRORCODE
Description:
Clear ADC error code (set it to
error code: "no error")
Parameters:
__HANDLE__: ADC handle
Return value:
None
__HAL_ADC_CLOCK_PRESCALER
Description:
Configuration of ADC clock &
prescaler: clock source PCLK or
Asynchronous with selectable
prescaler.
Parameters:
__HANDLE__: ADC handle
Return value:
None
IS_ADC_CLOCKPRESCALER
IS_ADC_RESOLUTION
IS_ADC_RESOLUTION_8_6_BITS
IS_ADC_DATA_ALIGN
IS_ADC_EXTTRIG_EDGE
IS_ADC_EOC_SELECTION
IS_ADC_OVERRUN
IS_ADC_RANK
IS_ADC_CHANNEL
IS_ADC_SAMPLE_TIME
IS_ADC_SCAN_MODE
IS_ADC_OVERSAMPLING_RATIO
IS_ADC_RIGHT_BIT_SHIFT
IS_ADC_TRIGGERED_OVERSAMPLING_MOD
E
IS_ADC_ANALOG_WATCHDOG_MODE
IS_ADC_CONVERSION_GROUP
IS_ADC_EVENT_TYPE
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ADC Exported Types
HAL_ADC_STATE_RESET
Notes:
ADC state machine is managed by
bitfields, state must be compared with bit
by bit. For example: " if
(HAL_IS_BIT_SET(HAL_ADC_GetState(h
adc1), HAL_ADC_STATE_REG_BUSY)) "
" if
(HAL_IS_BIT_SET(HAL_ADC_GetState(h
adc1), HAL_ADC_STATE_AWD1) ) " ADC
not yet initialized or disabled
HAL_ADC_STATE_READY
ADC peripheral ready for use
HAL_ADC_STATE_BUSY_INTERNAL
ADC is busy due to an internal process
(initialization, calibration)
HAL_ADC_STATE_TIMEOUT
TimeOut occurrence
HAL_ADC_STATE_ERROR_INTERNA
L
Internal error occurrence
HAL_ADC_STATE_ERROR_CONFIG
Configuration error occurrence
HAL_ADC_STATE_ERROR_DMA
DMA error occurrence
HAL_ADC_STATE_REG_BUSY
A conversion on ADC group regular is ongoing
or can occur (either by continuous mode,
external trigger, low power auto power-on (if
feature available), multimode ADC master
control (if feature available))
HAL_ADC_STATE_REG_EOC
Conversion data available on group regular
HAL_ADC_STATE_REG_OVR
Overrun occurrence
HAL_ADC_STATE_REG_EOSMP
Not available on this STM32 serie: End Of
Sampling flag raised
HAL_ADC_STATE_INJ_BUSY
Not available on this STM32 serie: A conversion
on group injected is ongoing or can occur
(either by auto-injection mode, external trigger,
low power auto power-on (if feature available),
multimode ADC master control (if feature
available))
HAL_ADC_STATE_INJ_EOC
Not available on this STM32 serie: Conversion
data available on group injected
HAL_ADC_STATE_INJ_JQOVF
Not available on this STM32 serie: Injected
queue overflow occurrence
HAL_ADC_STATE_AWD1
Out-of-window occurrence of ADC analog
watchdog 1
HAL_ADC_STATE_AWD2
Not available on this STM32 serie: Out-of-
window occurrence of ADC analog watchdog 2
HAL_ADC_STATE_AWD3
Not available on this STM32 serie: Out-of-
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window occurrence of ADC analog watchdog 3
HAL_ADC_STATE_MULTIMODE_
SLAVE
Not available on this STM32 serie: ADC in
multimode slave state, controlled by another
ADC master (when feature available)
ADC External Trigger Source
IS_ADC_EXTTRIG
ADC flags definition
ADC_FLAG_RDY
ADC Ready flag
ADC_FLAG_EOSMP
ADC End of Sampling flag
ADC_FLAG_EOC
ADC End of Regular Conversion flag
ADC_FLAG_EOS
ADC End of Regular sequence of Conversions flag
ADC_FLAG_OVR
ADC overrun flag
ADC_FLAG_AWD
ADC Analog watchdog flag
ADC_FLAG_EOCAL
ADC Enf Of Calibration flag
ADC_FLAG_ALL
ADC Interrupts Definition
ADC_IT_RDY
ADC Ready (ADRDY) interrupt source
ADC_IT_EOSMP
ADC End of Sampling interrupt source
ADC_IT_EOC
ADC End of Regular Conversion interrupt source
ADC_IT_EOS
ADC End of Regular sequence of Conversions interrupt source
ADC_IT_OVR
ADC overrun interrupt source
ADC_IT_AWD
ADC Analog watchdog 1 interrupt source
ADC_IT_EOCAL
ADC End of Calibration interrupt source
ADC Overrun
ADC_OVR_DATA_PRESERVED
ADC_OVR_DATA_OVERWRITTEN
ADC Oversampling Ratio
ADC_OVERSAMPLING_RATIO_2
ADC Oversampling ratio 2x
ADC_OVERSAMPLING_RATIO_4
ADC Oversampling ratio 4x
ADC_OVERSAMPLING_RATIO_8
ADC Oversampling ratio 8x
ADC_OVERSAMPLING_RATIO_16
ADC Oversampling ratio 16x
ADC_OVERSAMPLING_RATIO_32
ADC Oversampling ratio 32x
ADC_OVERSAMPLING_RATIO_64
ADC Oversampling ratio 64x
ADC_OVERSAMPLING_RATIO_128
ADC Oversampling ratio 128x
ADC_OVERSAMPLING_RATIO_256
ADC Oversampling ratio 256x
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ADC Range Verification
IS_ADC_RANGE
ADC rank
ADC_RANK_CHANNEL_NUMBER
Enable the rank of the selected channels. Number of
ranks in the sequence is defined by number of
channels enabled, rank of each channel is defined by
channel number (channel 0 fixed on rank 0, channel
1 fixed on rank1, ...)
ADC_RANK_NONE
Disable the selected rank (selected channel) from
sequencer
ADC External Trigger Source Edge for Regular Group
ADC_EXTERNALTRIGCONVEDGE_NONE
ADC_EXTERNALTRIGCONVEDGE_RISING
ADC_EXTERNALTRIGCONVEDGE_FALLING
ADC_EXTERNALTRIGCONVEDGE_RISINGFALLING
ADC External Trigger Source
ADC_EXTERNALTRIGCONV_T6_TRGO
ADC_EXTERNALTRIGCONV_T21_CC2
ADC_EXTERNALTRIGCONV_T2_TRGO
ADC_EXTERNALTRIGCONV_T2_CC4
ADC_EXTERNALTRIGCONV_T22_TRGO
ADC_EXTERNALTRIGCONV_T3_TRGO
ADC_EXTERNALTRIGCONV_EXT_IT11
ADC_SOFTWARE_START
ADC_EXTERNALTRIGCONV_T21_TRGO
ADC_EXTERNALTRIGCONV_T2_CC3
ADC Regular Nb Conversion Verification
IS_ADC_REGULAR_NB_CONV
ADC Resolution
ADC_RESOLUTION_12B
ADC 12-bit resolution
ADC_RESOLUTION_10B
ADC 10-bit resolution
ADC_RESOLUTION_8B
ADC 8-bit resolution
ADC_RESOLUTION_6B
ADC 6-bit resolution
ADC Right Bit Shift
ADC_RIGHTBITSHIFT_NONE
ADC No bit shift for oversampling
ADC_RIGHTBITSHIFT_1
ADC 1 bit shift for oversampling
ADC_RIGHTBITSHIFT_2
ADC 2 bits shift for oversampling
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ADC_RIGHTBITSHIFT_3
ADC 3 bits shift for oversampling
ADC_RIGHTBITSHIFT_4
ADC 4 bits shift for oversampling
ADC_RIGHTBITSHIFT_5
ADC 5 bits shift for oversampling
ADC_RIGHTBITSHIFT_6
ADC 6 bits shift for oversampling
ADC_RIGHTBITSHIFT_7
ADC 7 bits shift for oversampling
ADC_RIGHTBITSHIFT_8
ADC 8 bits shift for oversampling
ADC Sampling Cycles
ADC_SAMPLETIME_1CYCLE_5
ADC sampling time 1.5 cycle
ADC_SAMPLETIME_3CYCLES_5
ADC sampling time 3.5 CYCLES
ADC_SAMPLETIME_7CYCLES_5
ADC sampling time 7.5 CYCLES
ADC_SAMPLETIME_12CYCLES_5
ADC sampling time 12.5 CYCLES
ADC_SAMPLETIME_19CYCLES_5
ADC sampling time 19.5 CYCLES
ADC_SAMPLETIME_39CYCLES_5
ADC sampling time 39.5 CYCLES
ADC_SAMPLETIME_79CYCLES_5
ADC sampling time 79.5 CYCLES
ADC_SAMPLETIME_160CYCLES_5
ADC sampling time 160.5 CYCLES
ADC Scan mode
ADC_SCAN_DIRECTION_FORWARD
Scan direction forward: from channel 0 to
channel 18
ADC_SCAN_DIRECTION_BACKWARD
Scan direction backward: from channel 18 to
channel 0
ADC_SCAN_ENABLE
ADC SYSCFG internal paths Flags Definition
ADC_FLAG_SENSOR
ADC_FLAG_VREFINT
ADC TimeOut Values
ADC_ENABLE_TIMEOUT
ADC_DISABLE_TIMEOUT
ADC_STOP_CONVERSION_TIMEOUT
ADC_DELAY_10US_MIN_CPU_CYCLES
ADC Triggered Oversampling Mode
ADC_TRIGGEREDMODE_SINGLE_TRIGGER
ADC No bit shift for oversampling
ADC_TRIGGEREDMODE_MULTI_TRIGGER
ADC No bit shift for oversampling
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7 HAL ADC Extension Driver
7.1 ADCEx Firmware driver API description
7.1.1 IO operation functions
This section provides functions allowing to:
Perform the ADC calibration.
This section contains the following APIs:
HAL_ADCEx_Calibration_Start()
HAL_ADCEx_Calibration_GetValue()
HAL_ADCEx_Calibration_SetValue()
HAL_ADCEx_EnableVREFINT()
HAL_ADCEx_DisableVREFINT()
HAL_ADCEx_EnableVREFINTTempSensor()
HAL_ADCEx_DisableVREFINTTempSensor()
7.1.2 Detailed description of functions
HAL_ADCEx_Calibration_Start
Function name
HAL_StatusTypeDef HAL_ADCEx_Calibration_Start
(ADC_HandleTypeDef * hadc, uint32_t SingleDiff)
Function description
Perform an ADC automatic self-calibration Calibration prerequisite:
ADC must be disabled (execute this function before
HAL_ADC_Start() or after HAL_ADC_Stop() ).
Parameters
hadc: ADC handle
SingleDiff: Selection of single-ended or differential input This
parameter can be only of the following values:
ADC_SINGLE_ENDED: Channel in mode input single
ended
Return values
HAL: status
Notes
Calibration factor can be read after calibration, using function
HAL_ADC_GetValue() (value on 7 bits: from DR[6;0]).
HAL_ADCEx_Calibration_GetValue
Function name
uint32_t HAL_ADCEx_Calibration_GetValue
(ADC_HandleTypeDef * hadc, uint32_t SingleDiff)
Function description
Get the calibration factor.
Parameters
hadc: ADC handle.
SingleDiff: This parameter can be only:
ADC_SINGLE_ENDED: Channel in mode input single
ended.
Return values
Calibration: value.
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HAL_ADCEx_Calibration_SetValue
Function name
HAL_StatusTypeDef HAL_ADCEx_Calibration_SetValue
(ADC_HandleTypeDef * hadc, uint32_t SingleDiff, uint32_t
CalibrationFactor)
Function description
Set the calibration factor to overwrite automatic conversion result.
Parameters
hadc: ADC handle
SingleDiff: This parameter can be only:
ADC_SINGLE_ENDED: Channel in mode input single
ended.
CalibrationFactor: Calibration factor (coded on 7 bits
maximum)
Return values
HAL: state
HAL_ADCEx_EnableVREFINT
Function name
HAL_StatusTypeDef HAL_ADCEx_EnableVREFINT (void )
Function description
Enables the buffer of Vrefint for the ADC, required when device is
in mode low-power (low-power run, low-power sleep or stop mode)
This function must be called before function HAL_ADC_Init() (in
case of previous ADC operations: function HAL_ADC_DeInit()
must be called first) For more details on procedure and buffer
current consumption, refer to device reference manual.
Return values
None
Notes
This is functional only if the LOCK is not set.
HAL_ADCEx_DisableVREFINT
Function name
void HAL_ADCEx_DisableVREFINT (void )
Function description
Disables the Buffer Vrefint for the ADC.
Return values
None
Notes
This is functional only if the LOCK is not set.
HAL_ADCEx_EnableVREFINTTempSensor
Function name
HAL_StatusTypeDef
HAL_ADCEx_EnableVREFINTTempSensor (void )
Function description
Enables the buffer of temperature sensor for the ADC, required
when device is in mode low-power (low-power run, low-power
sleep or stop mode) This function must be called before function
HAL_ADC_Init() (in case of previous ADC operations: function
HAL_ADC_DeInit() must be called first) For more details on
procedure and buffer current consumption, refer to device
reference manual.
Return values
None
Notes
This is functional only if the LOCK is not set.
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HAL_ADCEx_DisableVREFINTTempSensor
Function name
void HAL_ADCEx_DisableVREFINTTempSensor (void )
Function description
Disables the VREFINT and Sensor for the ADC.
Return values
None
Notes
This is functional only if the LOCK is not set.
7.2 ADCEx Firmware driver defines
7.2.1 ADCEx
ADC Calibration Factor Length Verification
IS_ADC_CALFACT
Description:
Calibration factor length verification (7 bits maximum)
Parameters:
_Calibration_Factor_: Calibration factor value
Return value:
None
ADC Single Ended
ADC_SINGLE_ENDED
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8 HAL COMP Generic Driver
8.1 COMP Firmware driver registers structures
8.1.1 COMP_InitTypeDef
Data Fields
uint32_t WindowMode
uint32_t Mode
uint32_t NonInvertingInput
uint32_t InvertingInput
uint32_t OutputPol
uint32_t LPTIMConnection
uint32_t TriggerMode
Field Documentation
uint32_t COMP_InitTypeDef::WindowMode
Set window mode of a pair of comparators instances (2 consecutive instances odd
and even COMP<x> and COMP<x+1>). Note: HAL COMP driver allows to set window
mode from any COMP instance of the pair of COMP instances composing window
mode. This parameter can be a value of COMP_WindowMode
uint32_t COMP_InitTypeDef::Mode
Set comparator operating mode to adjust power and speed. Note: For the
characteritics of comparator power modes (propagation delay and power
consumption), refer to device datasheet. This parameter can be a value of
COMP_PowerMode
uint32_t COMP_InitTypeDef::NonInvertingInput
Set comparator input plus (non-inverting input). This parameter can be a value of
COMP_InputPlus
uint32_t COMP_InitTypeDef::InvertingInput
Set comparator input minus (inverting input). This parameter can be a value of
COMP_InputMinus
uint32_t COMP_InitTypeDef::OutputPol
Set comparator output polarity. This parameter can be a value of
COMP_OutputPolarity
uint32_t COMP_InitTypeDef::LPTIMConnection
Set comparator output connection to LPTIM peripheral. This parameter can be a value
of COMP_LPTIMConnection
uint32_t COMP_InitTypeDef::TriggerMode
Set the comparator output triggering External Interrupt Line (EXTI). This parameter
can be a value of COMP_EXTI_TriggerMode
8.1.2 COMP_HandleTypeDef
Data Fields
COMP_TypeDef * Instance
COMP_InitTypeDef Init
HAL_LockTypeDef Lock
__IO HAL_COMP_StateTypeDef State
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Field Documentation
COMP_TypeDef* COMP_HandleTypeDef::Instance
Register base address
COMP_InitTypeDef COMP_HandleTypeDef::Init
COMP required parameters
HAL_LockTypeDef COMP_HandleTypeDef::Lock
Locking object
__IO HAL_COMP_StateTypeDef COMP_HandleTypeDef::State
COMP communication state
8.2 COMP Firmware driver API description
8.2.1 COMP Peripheral features
The STM32L0xx device family integrates two analog comparators instances COMP1 and
COMP2:
1. The COMP input minus (inverting input) and input plus (non inverting input) can be set
to internal references or to GPIO pins (refer to GPIO list in reference manual).
2. The COMP output level is available using HAL_COMP_GetOutputLevel() and can be
redirected to other peripherals: GPIO pins (in mode alternate functions for
comparator), timers. (refer to GPIO list in reference manual).
3. Pairs of comparators instances can be combined in window mode (2 consecutive
instances odd and even COMP<x> and COMP<x+1>).
4. The comparators have interrupt capability through the EXTI controller with wake-up
from sleep and stop modes:
COMP1 is internally connected to EXTI Line 21
COMP2 is internally connected to EXTI Line 22 From the corresponding IRQ
handler, the right interrupt source can be retrieved using macro
__HAL_COMP_COMP1_EXTI_GET_FLAG() and
__HAL_COMP_COMP2_EXTI_GET_FLAG().
8.2.2 How to use this driver
This driver provides functions to configure and program the comparator instances of
STM32L0xx devices. To use the comparator, perform the following steps:
1. Initialize the COMP low level resources by implementing the HAL_COMP_MspInit():
Configure the GPIO connected to comparator inputs plus and minus in analog
mode using HAL_GPIO_Init().
If needed, configure the GPIO connected to comparator output in alternate
function mode using HAL_GPIO_Init().
If required enable the COMP interrupt by configuring and enabling EXTI line in
Interrupt mode and selecting the desired sensitivity level using HAL_GPIO_Init()
function. After that enable the comparator interrupt vector using
HAL_NVIC_EnableIRQ() function.
2. Configure the comparator using HAL_COMP_Init() function:
Select the input minus (inverting input)
Select the input plus (non-inverting input)
Select the output polarity
Select the power mode
Select the window mode HAL_COMP_Init() calls internally
__HAL_RCC_SYSCFG_CLK_ENABLE() to enable internal control clock of the
comparators. However, this is a legacy strategy. In future STM32 families, COMP
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clock enable must be implemented by user in "HAL_COMP_MspInit()".
Therefore, for compatibility anticipation, it is recommended to implement
__HAL_RCC_SYSCFG_CLK_ENABLE() in "HAL_COMP_MspInit()".
3. Reconfiguration on-the-fly of comparator can be done by calling again function
HAL_COMP_Init() with new input structure parameters values.
4. Enable the comparator using HAL_COMP_Start() function.
5. Use HAL_COMP_TriggerCallback() or HAL_COMP_GetOutputLevel() functions to
manage comparator outputs (events and output level).
6. Disable the comparator using HAL_COMP_Stop() function.
7. De-initialize the comparator using HAL_COMP_DeInit() function.
8. For safety purpose, comparator configuration can be locked using HAL_COMP_Lock()
function. The only way to unlock the comparator is a device hardware reset.
8.2.3 Initialization and de-initialization functions
This section provides functions to initialize and de-initialize comparators
This section contains the following APIs:
HAL_COMP_Init()
HAL_COMP_DeInit()
HAL_COMP_MspInit()
HAL_COMP_MspDeInit()
8.2.4 IO operation functions
This section provides functions allowing to:
Start a comparator instance.
Stop a comparator instance.
This section contains the following APIs:
HAL_COMP_Start()
HAL_COMP_Stop()
HAL_COMP_IRQHandler()
8.2.5 Peripheral Control functions
This subsection provides a set of functions allowing to control the comparators.
This section contains the following APIs:
HAL_COMP_Lock()
HAL_COMP_GetOutputLevel()
HAL_COMP_TriggerCallback()
8.2.6 Peripheral State functions
This subsection permit to get in run-time the status of the peripheral.
This section contains the following APIs:
HAL_COMP_GetState()
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8.2.7 Detailed description of functions
HAL_COMP_Init
Function name
HAL_StatusTypeDef HAL_COMP_Init (COMP_HandleTypeDef
* hcomp)
Function description
Initialize the COMP according to the specified parameters in the
COMP_InitTypeDef and initialize the associated handle.
Parameters
hcomp: COMP handle
Return values
HAL: status
Notes
If the selected comparator is locked, initialization can't be
performed. To unlock the configuration, perform a system
reset.
When the LPTIM connection is enabled, the following pins
LPTIM_IN1(PB5, PC0) and LPTIM_IN2(PB7, PC2) should not
be configured in alternate function.
HAL_COMP_DeInit
Function name
HAL_StatusTypeDef HAL_COMP_DeInit
(COMP_HandleTypeDef * hcomp)
Function description
DeInitialize the COMP peripheral.
Parameters
hcomp: COMP handle
Return values
HAL: status
Notes
Deinitialization cannot be performed if the COMP
configuration is locked. To unlock the configuration, perform a
system reset.
HAL_COMP_MspInit
Function name
void HAL_COMP_MspInit (COMP_HandleTypeDef * hcomp)
Function description
Initialize the COMP MSP.
Parameters
hcomp: COMP handle
Return values
None
HAL_COMP_MspDeInit
Function name
void HAL_COMP_MspDeInit (COMP_HandleTypeDef * hcomp)
Function description
DeInitialize the COMP MSP.
Parameters
hcomp: COMP handle
Return values
None
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HAL_COMP_Start
Function name
HAL_StatusTypeDef HAL_COMP_Start
(COMP_HandleTypeDef * hcomp)
Function description
Start the comparator.
Parameters
hcomp: COMP handle
Return values
HAL: status
HAL_COMP_Stop
Function name
HAL_StatusTypeDef HAL_COMP_Stop
(COMP_HandleTypeDef * hcomp)
Function description
Stop the comparator.
Parameters
hcomp: COMP handle
Return values
HAL: status
HAL_COMP_IRQHandler
Function name
void HAL_COMP_IRQHandler (COMP_HandleTypeDef *
hcomp)
Function description
Comparator IRQ handler.
Parameters
hcomp: COMP handle
Return values
None
HAL_COMP_Lock
Function name
HAL_StatusTypeDef HAL_COMP_Lock
(COMP_HandleTypeDef * hcomp)
Function description
Lock the selected comparator configuration.
Parameters
hcomp: COMP handle
Return values
HAL: status
Notes
A system reset is required to unlock the comparator
configuration.
Locking the comparator from reset state is possible if
__HAL_RCC_SYSCFG_CLK_ENABLE() is being called
before.
HAL_COMP_GetOutputLevel
Function name
uint32_t HAL_COMP_GetOutputLevel (COMP_HandleTypeDef
* hcomp)
Function description
Return the output level (high or low) of the selected comparator.
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HAL_COMP_TriggerCallback
Function name
void HAL_COMP_TriggerCallback (COMP_HandleTypeDef *
hcomp)
Function description
Comparator callback.
Parameters
hcomp: COMP handle
Return values
None
HAL_COMP_GetState
Function name
HAL_COMP_StateTypeDef HAL_COMP_GetState
(COMP_HandleTypeDef * hcomp)
Function description
Return the COMP handle state.
Parameters
hcomp: COMP handle
Return values
HAL: state
8.3 COMP Firmware driver defines
8.3.1 COMP
COMP Exported Types
COMP_STATE_BITFIELD_LOCK
COMP EXTI Lines
COMP_EXTI_LINE_COMP1
EXTI line 21 connected to COMP1 output
COMP_EXTI_LINE_COMP2
EXTI line 22 connected to COMP2 output
COMP_EXTI_IT
EXTI line event with interruption
COMP_EXTI_EVENT
EXTI line event only (without interruption)
COMP_EXTI_RISING
EXTI line event on rising edge
COMP_EXTI_FALLING
EXTI line event on falling edge
COMP external interrupt line management
__HAL_COMP_COMP1_EXTI_ENABLE_RISING_EDGE
Description:
Enable the COMP1
EXTI line rising edge
trigger.
Return value:
None
__HAL_COMP_COMP1_EXTI_DISABLE_RISING_EDGE
Description:
Disable the COMP1
EXTI line rising edge
trigger.
Return value:
None
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__HAL_COMP_COMP1_EXTI_ENABLE_FALLING_EDGE
Description:
Enable the COMP1
EXTI line falling edge
trigger.
Return value:
None
__HAL_COMP_COMP1_EXTI_DISABLE_FALLING_EDGE
Description:
Disable the COMP1
EXTI line falling edge
trigger.
Return value:
None
__HAL_COMP_COMP1_EXTI_ENABLE_RISING_FALLIN
G_EDGE
Description:
Enable the COMP1
EXTI line rising &
falling edge trigger.
Return value:
None
__HAL_COMP_COMP1_EXTI_DISABLE_RISING_FALLIN
G_EDGE
Description:
Disable the COMP1
EXTI line rising &
falling edge trigger.
Return value:
None
__HAL_COMP_COMP1_EXTI_ENABLE_IT
Description:
Enable the COMP1
EXTI line in interrupt
mode.
Return value:
None
__HAL_COMP_COMP1_EXTI_DISABLE_IT
Description:
Disable the COMP1
EXTI line in interrupt
mode.
Return value:
None
__HAL_COMP_COMP1_EXTI_GENERATE_SWIT
Description:
Generate a software
interrupt on the
COMP1 EXTI line.
Return value:
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None
__HAL_COMP_COMP1_EXTI_ENABLE_EVENT
Description:
Enable the COMP1
EXTI line in event
mode.
Return value:
None
__HAL_COMP_COMP1_EXTI_DISABLE_EVENT
Description:
Disable the COMP1
EXTI line in event
mode.
Return value:
None
__HAL_COMP_COMP1_EXTI_GET_FLAG
Description:
Check whether the
COMP1 EXTI line flag
is set.
Return value:
RESET: or SET
__HAL_COMP_COMP1_EXTI_CLEAR_FLAG
Description:
Clear the COMP1 EXTI
flag.
Return value:
None
__HAL_COMP_COMP2_EXTI_ENABLE_RISING_EDGE
Description:
Enable the COMP2
EXTI line rising edge
trigger.
Return value:
None
__HAL_COMP_COMP2_EXTI_DISABLE_RISING_EDGE
Description:
Disable the COMP2
EXTI line rising edge
trigger.
Return value:
None
__HAL_COMP_COMP2_EXTI_ENABLE_FALLING_EDGE
Description:
Enable the COMP2
EXTI line falling edge
trigger.
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Return value:
None
__HAL_COMP_COMP2_EXTI_DISABLE_FALLING_EDGE
Description:
Disable the COMP2
EXTI line falling edge
trigger.
Return value:
None
__HAL_COMP_COMP2_EXTI_ENABLE_RISING_
FALLING_EDGE
Description:
Enable the COMP2
EXTI line rising &
falling edge trigger.
Return value:
None
__HAL_COMP_COMP2_EXTI_DISABLE_RISING_
FALLING_EDGE
Description:
Disable the COMP2
EXTI line rising &
falling edge trigger.
Return value:
None
__HAL_COMP_COMP2_EXTI_ENABLE_IT
Description:
Enable the COMP2
EXTI line in interrupt
mode.
Return value:
None
__HAL_COMP_COMP2_EXTI_DISABLE_IT
Description:
Disable the COMP2
EXTI line in interrupt
mode.
Return value:
None
__HAL_COMP_COMP2_EXTI_GENERATE_SWIT
Description:
Generate a software
interrupt on the
COMP2 EXTI line.
Return value:
None
__HAL_COMP_COMP2_EXTI_ENABLE_EVENT
Description:
Enable the COMP2
EXTI line in event
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mode.
Return value:
None
__HAL_COMP_COMP2_EXTI_DISABLE_EVENT
Description:
Disable the COMP2
EXTI line in event
mode.
Return value:
None
__HAL_COMP_COMP2_EXTI_GET_FLAG
Description:
Check whether the
COMP2 EXTI line flag
is set.
Return value:
RESET: or SET
__HAL_COMP_COMP2_EXTI_CLEAR_FLAG
Description:
Clear the COMP2 EXTI
flag.
Return value:
None
COMP output to EXTI
COMP_TRIGGERMODE_NONE
Comparator output triggering no
External Interrupt Line
COMP_TRIGGERMODE_IT_RISING
Comparator output triggering
External Interrupt Line event with
interruption, on rising edge
COMP_TRIGGERMODE_IT_FALLING
Comparator output triggering
External Interrupt Line event with
interruption, on falling edge
COMP_TRIGGERMODE_IT_RISING_FALLING
Comparator output triggering
External Interrupt Line event with
interruption, on both rising and
falling edges
COMP_TRIGGERMODE_EVENT_RISING
Comparator output triggering
External Interrupt Line event only
(without interruption), on rising
edge
COMP_TRIGGERMODE_EVENT_FALLING
Comparator output triggering
External Interrupt Line event only
(without interruption), on falling
edge
COMP_TRIGGERMODE_EVENT_RISING_FALLING
Comparator output triggering
External Interrupt Line event only
(without interruption), on both
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rising and falling edges
COMP private macros to get EXTI line associated with comparators
COMP_GET_EXTI_LINE
Description:
Get the specified EXTI line for a comparator instance.
Parameters:
__INSTANCE__: specifies the COMP instance.
Return value:
value: of
COMP Handle Management
__HAL_COMP_RESET_HANDLE_STATE
Description:
Reset COMP handle state.
Parameters:
__HANDLE__: COMP handle
Return value:
None
__HAL_COMP_ENABLE
Description:
Enable the specified comparator.
Parameters:
__HANDLE__: COMP handle
Return value:
None
__HAL_COMP_DISABLE
Description:
Disable the specified comparator.
Parameters:
__HANDLE__: COMP handle
Return value:
None
__HAL_COMP_LOCK
Description:
Lock the specified comparator
configuration.
Parameters:
__HANDLE__: COMP handle
Return value:
None
Notes:
Using this macro induce HAL COMP
handle state machine being no more in
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line with COMP instance state. To keep
HAL COMP handle state machine
updated, it is recommended to use
function "HAL_COMP_Lock')".
__HAL_COMP_IS_LOCKED
Description:
Check whether the specified comparator
is locked.
Parameters:
__HANDLE__: COMP handle
Return value:
Value: 0 if COMP instance is not locked,
value 1 if COMP instance is locked
COMP input minus (inverting input)
COMP_INPUT_MINUS_1_4VREFINT
Comparator input minus connected to 1/4
VREFINT (only for COMP instance: COMP2)
COMP_INPUT_MINUS_1_2VREFINT
Comparator input minus connected to 1/2
VREFINT (only for COMP instance: COMP2)
COMP_INPUT_MINUS_3_4VREFINT
Comparator input minus connected to 3/4
VREFINT (only for COMP instance: COMP2)
COMP_INPUT_MINUS_VREFINT
Comparator input minus connected to VrefInt
COMP_INPUT_MINUS_DAC1_CH1
Comparator input minus connected to DAC1
channel 1 (DAC_OUT1)
COMP_INPUT_MINUS_DAC1_CH2
Comparator input minus connected to DAC1
channel 2 (DAC_OUT2)
COMP_INPUT_MINUS_IO1
Comparator input minus connected to IO1 (pin
PA0 for COMP1, pin PA2 for COMP2)
COMP_INPUT_MINUS_IO2
Comparator input minus connected to IO2 (pin
PB3 for COMP2) (only for COMP instance:
COMP2)
COMP input plus (non-inverting input)
COMP_INPUT_PLUS_IO1
Comparator input plus connected to IO1 (pin PA1 for COMP1,
pin PA3 for COMP2)
COMP_INPUT_PLUS_IO2
Comparator input plus connected to IO2 (pin PB4 for
COMP2) (only for COMP instance: COMP2)
COMP_INPUT_PLUS_IO3
Comparator input plus connected to IO3 (pin PA5 for
COMP2) (only for COMP instance: COMP2)
COMP_INPUT_PLUS_IO4
Comparator input plus connected to IO4 (pin PB6 for
COMP2) (only for COMP instance: COMP2)
COMP_INPUT_PLUS_IO5
Comparator input plus connected to IO5 (pin PB7 for
COMP2) (only for COMP instance: COMP2)
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COMP private macros to check input parameters
IS_COMP_WINDOWMODE
IS_COMP_POWERMODE
IS_COMP_WINDOWMODE_INSTANCE
IS_COMP_INPUT_PLUS
IS_COMP_INPUT_MINUS
IS_COMP1_LPTIMCONNECTION
IS_COMP2_LPTIMCONNECTION
IS_COMP2_LPTIMCONNECTION_RESTRICTED
IS_COMP_OUTPUTPOL
IS_COMP_TRIGGERMODE
IS_COMP_OUTPUT_LEVEL
COMP Low power timer connection definition
COMP_LPTIMCONNECTION_DISABLED
COMPx signal is gated
COMP_LPTIMCONNECTION_IN1_ENABLED
COMPx signal is connected to LPTIM
input 1
COMP_LPTIMCONNECTION_IN2_ENABLED
COMPx signal is connected to LPTIM
input 2
COMP Output Level
COMP_OUTPUT_LEVEL_LOW
COMP_OUTPUT_LEVEL_HIGH
COMP output Polarity
COMP_OUTPUTPOL_NONINVERTED
COMP output on GPIO isn't inverted
COMP_OUTPUTPOL_INVERTED
COMP output on GPIO is inverted
COMP power mode
COMP_POWERMODE_MEDIUMSPEED
COMP power mode to low power
(indicated as "high speed" in reference
manual) (only for COMP instance:
COMP2)
COMP_POWERMODE_ULTRALOWPOWER
COMP power mode to ultra low power
(indicated as "low speed" in reference
manual) (only for COMP instance:
COMP2)
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COMP Window Mode
COMP_WINDOWMODE_DISABLE
Window mode disable:
Comparators instances pair
COMP1 and COMP2 are
independent
COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
Window mode enable:
Comparators instances pair
COMP1 and COMP2 have
their input plus connected
together. The common
input is COMP1 input plus
(COMP2 input plus is no
more accessible).
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9 HAL COMP Extension Driver
9.1 COMPEx Firmware driver API description
9.1.1 COMP peripheral Extended features
Comparing to other previous devices, the COMP interface for STM32L0XX devices
contains the following additional features
Possibility to enable or disable the VREFINT which is used as input to the comparator.
9.1.2 Detailed description of functions
HAL_COMPEx_EnableVREFINT
Function name
void HAL_COMPEx_EnableVREFINT (void )
Function description
Enable Vrefint and path to comparator, used by comparator
instance COMP2 input based on VrefInt or subdivision of VrefInt.
Return values
None
Notes
The equivalent of this function is managed automatically
when using function "HAL_COMP_Init()".
VrefInt requires a startup time (refer to device datasheet,
parameter "TVREFINT"). This function waits for the startup
time (alternative solution: poll for bit
SYSCFG_CFGR3_VREFINT_RDYF set).
HAL_COMPEx_DisableVREFINT
Function name
void HAL_COMPEx_DisableVREFINT (void )
Function description
Disable Vrefint and path to comparator, used by comparator
instance COMP2 input based on VrefInt or subdivision of VrefInt.
Return values
None
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10 HAL CORTEX Generic Driver
10.1 CORTEX Firmware driver registers structures
10.1.1 MPU_Region_InitTypeDef
Data Fields
uint32_t BaseAddress
uint8_t Enable
uint8_t Number
uint8_t Size
uint8_t SubRegionDisable
uint8_t TypeExtField
uint8_t AccessPermission
uint8_t DisableExec
uint8_t IsShareable
uint8_t IsCacheable
uint8_t IsBufferable
Field Documentation
uint32_t MPU_Region_InitTypeDef::BaseAddress
Specifies the base address of the region to protect.
uint8_t MPU_Region_InitTypeDef::Enable
Specifies the status of the region. This parameter can be a value of
CORTEX_MPU_Region_Enable
uint8_t MPU_Region_InitTypeDef::Number
Specifies the number of the region to protect. This parameter can be a value of
CORTEX_MPU_Region_Number
uint8_t MPU_Region_InitTypeDef::Size
Specifies the size of the region to protect. This parameter can be a value of
CORTEX_MPU_Region_Size
uint8_t MPU_Region_InitTypeDef::SubRegionDisable
Specifies the number of the subregion protection to disable. This parameter must be a
number between Min_Data = 0x00 and Max_Data = 0xFF
uint8_t MPU_Region_InitTypeDef::TypeExtField
This parameter is NOT used but is kept to keep API unified through all families
uint8_t MPU_Region_InitTypeDef::AccessPermission
Specifies the region access permission type. This parameter can be a value of
CORTEX_MPU_Region_Permission_Attributes
uint8_t MPU_Region_InitTypeDef::DisableExec
Specifies the instruction access status. This parameter can be a value of
CORTEX_MPU_Instruction_Access
uint8_t MPU_Region_InitTypeDef::IsShareable
Specifies the shareability status of the protected region. This parameter can be a
value of CORTEX_MPU_Access_Shareable
uint8_t MPU_Region_InitTypeDef::IsCacheable
Specifies the cacheable status of the region protected. This parameter can be a value
of CORTEX_MPU_Access_Cacheable
uint8_t MPU_Region_InitTypeDef::IsBufferable
Specifies the bufferable status of the protected region. This parameter can be a value
of CORTEX_MPU_Access_Bufferable
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10.2 CORTEX Firmware driver API description
10.2.1 How to use this driver
How to configure Interrupts using CORTEX HAL driver
This section provide functions allowing to configure the NVIC interrupts (IRQ). The Cortex-
M0+ exceptions are managed by CMSIS functions.
1. Enable and Configure the priority of the selected IRQ Channels. The priority can be
0..3. Lower priority values gives higher priority. Priority Order: Lowest priority.Lowest
hardware priority (IRQn position).
2. Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority()
3. Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ()
How to configure Systick using CORTEX HAL driver
Setup SysTick Timer for timebase
The HAL_SYSTICK_Config()function calls the SysTick_Config() function which is a
CMSIS function that:
Configures the SysTick Reload register with value passed as function parameter.
Configures the SysTick IRQ priority to the lowest value (0x03).
Resets the SysTick Counter register.
Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
Enables the SysTick Interrupt.
Starts the SysTick Counter.
You can change the SysTick Clock source to be HCLK_Div8 by calling the function
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK_DIV8) just after
the HAL_SYSTICK_Config() function call. The HAL_SYSTICK_CLKSourceConfig()
function is defined inside the stm32l0xx_hal_cortex.c file.
You can change the SysTick IRQ priority by calling the
HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the
HAL_SYSTICK_Config() function call. The HAL_NVIC_SetPriority() call the
NVIC_SetPriority() function which is a CMSIS function.
To adjust the SysTick timebase, use the following formula: Reload Value = SysTick
Counter Clock (Hz) x Desired Time base (s)
Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
Reload Value should not exceed 0xFFFFFF
10.2.2 Initialization and de-initialization functions
This section provides the CORTEX HAL driver functions allowing to configure Interrupts
Systick functionalities
This section contains the following APIs:
HAL_NVIC_SetPriority()
HAL_NVIC_EnableIRQ()
HAL_NVIC_DisableIRQ()
HAL_NVIC_SystemReset()
HAL_SYSTICK_Config()
HAL_MPU_Disable()
HAL_MPU_Enable()
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10.2.3 Peripheral Control functions
This subsection provides a set of functions allowing to control the CORTEX (NVIC,
SYSTICK) functionalities.
This section contains the following APIs:
HAL_NVIC_GetPriority()
HAL_NVIC_SetPendingIRQ()
HAL_NVIC_GetPendingIRQ()
HAL_NVIC_ClearPendingIRQ()
HAL_SYSTICK_CLKSourceConfig()
HAL_SYSTICK_IRQHandler()
HAL_SYSTICK_Callback()
HAL_MPU_ConfigRegion()
10.2.4 Detailed description of functions
HAL_NVIC_SetPriority
Function name
void HAL_NVIC_SetPriority (IRQn_Type IRQn, uint32_t
PreemptPriority, uint32_t SubPriority)
Function description
Sets the priority of an interrupt.
Parameters
IRQn: External interrupt number . This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
PreemptPriority: The pre-emption priority for the IRQn
channel. This parameter can be a value between 0 and 3. A
lower priority value indicates a higher priority
SubPriority: The subpriority level for the IRQ channel. with
stm32l0xx devices, this parameter is a dummy value and it is
ignored, because no subpriority supported in Cortex M0+
based products.
Return values
None
HAL_NVIC_EnableIRQ
Function name
void HAL_NVIC_EnableIRQ (IRQn_Type IRQn)
Function description
Enables a device specific interrupt in the NVIC interrupt controller.
Parameters
IRQn: External interrupt number . This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
Return values
None
Notes
To configure interrupts priority correctly, the
NVIC_PriorityGroupConfig() function should be called before.
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HAL_NVIC_DisableIRQ
Function name
void HAL_NVIC_DisableIRQ (IRQn_Type IRQn)
Function description
Disables a device specific interrupt in the NVIC interrupt controller.
Parameters
IRQn: External interrupt number . This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
Return values
None
HAL_NVIC_SystemReset
Function name
void HAL_NVIC_SystemReset (void )
Function description
Initiates a system reset request to reset the MCU.
Return values
None
HAL_SYSTICK_Config
Function name
uint32_t HAL_SYSTICK_Config (uint32_t TicksNumb)
Function description
Initializes the System Timer and its interrupt, and starts the System
Tick Timer.
Parameters
TicksNumb: Specifies the ticks Number of ticks between two
interrupts.
Return values
status: - 0 Function succeeded.
1 Function failed.
HAL_MPU_Disable
Function name
__STATIC_INLINE void HAL_MPU_Disable (void )
Function description
Disable the MPU.
Return values
None
HAL_MPU_Enable
Function name
__STATIC_INLINE void HAL_MPU_Enable (uint32_t
MPU_Control)
Function description
Enable the MPU.
Parameters
MPU_Control: Specifies the control mode of the MPU during
hard fault, NMI, FAULTMASK and privileged access to the
default memory This parameter can be one of the following
values:
MPU_HFNMI_PRIVDEF_NONE
MPU_HARDFAULT_NMI
MPU_PRIVILEGED_DEFAULT
MPU_HFNMI_PRIVDEF
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Return values
None
HAL_NVIC_GetPriority
Function name
uint32_t HAL_NVIC_GetPriority (IRQn_Type IRQn)
Function description
Gets the priority of an interrupt.
Parameters
IRQn: External interrupt number. This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to the
appropriate CMSIS device file (stm32l0xxxx.h))
Return values
None
HAL_NVIC_GetPendingIRQ
Function name
uint32_t HAL_NVIC_GetPendingIRQ (IRQn_Type IRQn)
Function description
Gets Pending Interrupt (reads the pending register in the NVIC
and returns the pending bit for the specified interrupt).
Parameters
IRQn: External interrupt number . This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
Return values
status: - 0 Interrupt status is not pending.
1 Interrupt status is pending.
HAL_NVIC_SetPendingIRQ
Function name
void HAL_NVIC_SetPendingIRQ (IRQn_Type IRQn)
Function description
Sets Pending bit of an external interrupt.
Parameters
IRQn: External interrupt number This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
Return values
None
HAL_NVIC_ClearPendingIRQ
Function name
void HAL_NVIC_ClearPendingIRQ (IRQn_Type IRQn)
Function description
Clears the pending bit of an external interrupt.
Parameters
IRQn: External interrupt number . This parameter can be an
enumerator of IRQn_Type enumeration (For the complete
STM32 Devices IRQ Channels list, please refer to
stm32l0xx.h file)
Return values
None
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HAL_SYSTICK_CLKSourceConfig
Function name
void HAL_SYSTICK_CLKSourceConfig (uint32_t CLKSource)
Function description
Configures the SysTick clock source.
Parameters
CLKSource: specifies the SysTick clock source. This
parameter can be one of the following values:
SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock
divided by 8 selected as SysTick clock source.
SYSTICK_CLKSOURCE_HCLK: AHB clock selected as
SysTick clock source.
Return values
None
HAL_SYSTICK_IRQHandler
Function name
void HAL_SYSTICK_IRQHandler (void )
Function description
This function handles SYSTICK interrupt request.
Return values
None
HAL_SYSTICK_Callback
Function name
void HAL_SYSTICK_Callback (void )
Function description
SYSTICK callback.
Return values
None
HAL_MPU_ConfigRegion
Function name
void HAL_MPU_ConfigRegion (MPU_Region_InitTypeDef *
MPU_Init)
Function description
Initialize and configure the Region and the memory to be
protected.
Parameters
MPU_Init: Pointer to a MPU_Region_InitTypeDef structure
that contains the initialization and configuration information.
Return values
None
10.3 CORTEX Firmware driver defines
10.3.1 CORTEX
CORTEx Exported Constants
IS_NVIC_PREEMPTION_PRIORITY
IS_NVIC_DEVICE_IRQ
CORTEX MPU Instruction Access Bufferable
MPU_ACCESS_BUFFERABLE
MPU_ACCESS_NOT_BUFFERABLE
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CORTEX MPU Instruction Access Cacheable
MPU_ACCESS_CACHEABLE
MPU_ACCESS_NOT_CACHEABLE
CORTEX MPU Instruction Access Shareable
MPU_ACCESS_SHAREABLE
MPU_ACCESS_NOT_SHAREABLE
CORTEX MPU HFNMI and PRIVILEGED Access control
MPU_HFNMI_PRIVDEF_NONE
MPU_HARDFAULT_NMI
MPU_PRIVILEGED_DEFAULT
MPU_HFNMI_PRIVDEF
CORTEX MPU Instruction Access
MPU_INSTRUCTION_ACCESS_ENABLE
MPU_INSTRUCTION_ACCESS_DISABLE
CORTEX MPU Region Enable
MPU_REGION_ENABLE
MPU_REGION_DISABLE
CORTEX MPU Region Number
MPU_REGION_NUMBER0
MPU_REGION_NUMBER1
MPU_REGION_NUMBER2
MPU_REGION_NUMBER3
MPU_REGION_NUMBER4
MPU_REGION_NUMBER5
MPU_REGION_NUMBER6
MPU_REGION_NUMBER7
CORTEX MPU Region Permission Attributes
MPU_REGION_NO_ACCESS
MPU_REGION_PRIV_RW
MPU_REGION_PRIV_RW_URO
MPU_REGION_FULL_ACCESS
MPU_REGION_PRIV_RO
MPU_REGION_PRIV_RO_URO
CORTEX MPU Region Size
MPU_REGION_SIZE_32B
MPU_REGION_SIZE_64B
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MPU_REGION_SIZE_128B
MPU_REGION_SIZE_256B
MPU_REGION_SIZE_512B
MPU_REGION_SIZE_1KB
MPU_REGION_SIZE_2KB
MPU_REGION_SIZE_4KB
MPU_REGION_SIZE_8KB
MPU_REGION_SIZE_16KB
MPU_REGION_SIZE_32KB
MPU_REGION_SIZE_64KB
MPU_REGION_SIZE_128KB
MPU_REGION_SIZE_256KB
MPU_REGION_SIZE_512KB
MPU_REGION_SIZE_1MB
MPU_REGION_SIZE_2MB
MPU_REGION_SIZE_4MB
MPU_REGION_SIZE_8MB
MPU_REGION_SIZE_16MB
MPU_REGION_SIZE_32MB
MPU_REGION_SIZE_64MB
MPU_REGION_SIZE_128MB
MPU_REGION_SIZE_256MB
MPU_REGION_SIZE_512MB
MPU_REGION_SIZE_1GB
MPU_REGION_SIZE_2GB
MPU_REGION_SIZE_4GB
CORTEX SysTick Clock Source
SYSTICK_CLKSOURCE_HCLK_DIV8
SYSTICK_CLKSOURCE_HCLK
IS_SYSTICK_CLK_SOURCE
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11 HAL CRC Generic Driver
11.1 CRC Firmware driver registers structures
11.1.1 CRC_InitTypeDef
Data Fields
uint8_t DefaultPolynomialUse
uint8_t DefaultInitValueUse
uint32_t GeneratingPolynomial
uint32_t CRCLength
uint32_t InitValue
uint32_t InputDataInversionMode
uint32_t OutputDataInversionMode
Field Documentation
uint8_t CRC_InitTypeDef::DefaultPolynomialUse
This parameter is a value of CRC_Default_Polynomial and indicates if default
polynomial is used. If set to DEFAULT_POLYNOMIAL_ENABLE, resort to default
X^32 + X^26 + X^23 + X^22 + X^16 + X^12 + X^11 + X^10 +X^8 + X^7 + X^5 + X^4 +
X^2+ X +1. In that case, there is no need to set GeneratingPolynomial field. If
otherwise set to DEFAULT_POLYNOMIAL_DISABLE, GeneratingPolynomial and
CRCLength fields must be set
uint8_t CRC_InitTypeDef::DefaultInitValueUse
This parameter is a value of CRC_Default_InitValue_Use and indicates if default init
value is used. If set to DEFAULT_INIT_VALUE_ENABLE, resort to default
0xFFFFFFFF value. In that case, there is no need to set InitValue field. If otherwise
set to DEFAULT_INIT_VALUE_DISABLE, InitValue field must be set
uint32_t CRC_InitTypeDef::GeneratingPolynomial
Set CRC generating polynomial. 7, 8, 16 or 32-bit long value for a polynomial degree
respectively equal to 7, 8, 16 or 32. This field is written in normal representation, e.g.,
for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65. No need to
specify it if DefaultPolynomialUse is set to DEFAULT_POLYNOMIAL_ENABLE
uint32_t CRC_InitTypeDef::CRCLength
This parameter is a value of CRC_Polynomial_Sizes and indicates CRC length.
Value can be either one of CRC_POLYLENGTH_32B (32-bit CRC)
CRC_POLYLENGTH_16B (16-bit CRC) CRC_POLYLENGTH_8B (8-bit CRC)
CRC_POLYLENGTH_7B (7-bit CRC)
uint32_t CRC_InitTypeDef::InitValue
Init value to initiate CRC computation. No need to specify it if DefaultInitValueUse is
set to DEFAULT_INIT_VALUE_ENABLE
uint32_t CRC_InitTypeDef::InputDataInversionMode
This parameter is a value of CRCEx_Input_Data_Inversion and specifies input data
inversion mode. Can be either one of the following values
CRC_INPUTDATA_INVERSION_NONE no input data inversion
CRC_INPUTDATA_INVERSION_BYTE byte-wise inversion, 0x1A2B3C4D becomes
0x58D43CB2 CRC_INPUTDATA_INVERSION_HALFWORD halfword-wise inversion,
0x1A2B3C4D becomes 0xD458B23C CRC_INPUTDATA_INVERSION_WORD word-
wise inversion, 0x1A2B3C4D becomes 0xB23CD458
uint32_t CRC_InitTypeDef::OutputDataInversionMode
This parameter is a value of CRCEx_Output_Data_Inversion and specifies output
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data (i.e. CRC) inversion mode. Can be either
CRC_OUTPUTDATA_INVERSION_DISABLE no CRC inversion, or
CRC_OUTPUTDATA_INVERSION_ENABLE CRC 0x11223344 is converted into
0x22CC4488
11.1.2 CRC_HandleTypeDef
Data Fields
CRC_TypeDef * Instance
CRC_InitTypeDef Init
HAL_LockTypeDef Lock
__IO HAL_CRC_StateTypeDef State
uint32_t InputDataFormat
Field Documentation
CRC_TypeDef* CRC_HandleTypeDef::Instance
Register base address
CRC_InitTypeDef CRC_HandleTypeDef::Init
CRC configuration parameters
HAL_LockTypeDef CRC_HandleTypeDef::Lock
CRC Locking object
__IO HAL_CRC_StateTypeDef CRC_HandleTypeDef::State
CRC communication state
uint32_t CRC_HandleTypeDef::InputDataFormat
This parameter is a value of CRC_Input_Buffer_Format and specifies input data
format. Can be either CRC_INPUTDATA_FORMAT_BYTES input data is a stream of
bytes (8-bit data) CRC_INPUTDATA_FORMAT_HALFWORDS input data is a stream
of half-words (16-bit data) CRC_INPUTDATA_FORMAT_WORDS input data is a
stream of words (32-bits data) Note that constant
CRC_INPUT_FORMAT_UNDEFINED is defined but an initialization error must occur
if InputBufferFormat is not one of the three values listed above
11.2 CRC Firmware driver API description
11.2.1 Initialization and de-initialization functions
This section provides functions allowing to:
1. Initialize the CRC according to the specified parameters in the CRC_InitTypeDef and
create the associated handle
2. DeInitialize the CRC peripheral
3. Initialize the CRC MSP
4. DeInitialize CRC MSP
This section contains the following APIs:
HAL_CRC_Init()
HAL_CRC_DeInit()
HAL_CRC_MspInit()
HAL_CRC_MspDeInit()
11.2.2 Peripheral Control functions
This section provides functions allowing to:
1. Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer using
combination of the previous CRC value and the new one. or
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2. Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer
independently of the previous CRC value.
This section contains the following APIs:
HAL_CRC_Accumulate()
HAL_CRC_Calculate()
11.2.3 Peripheral State functions
This subsection permits to get in run-time the status of the peripheral.
This section contains the following APIs:
HAL_CRC_GetState()
11.2.4 Detailed description of functions
HAL_CRC_Init
Function name
HAL_StatusTypeDef HAL_CRC_Init (CRC_HandleTypeDef *
hcrc)
Function description
Initializes the CRC according to the specified parameters in the
CRC_InitTypeDef and creates the associated handle.
Parameters
hcrc: CRC handle
Return values
HAL: status
HAL_CRC_DeInit
Function name
HAL_StatusTypeDef HAL_CRC_DeInit (CRC_HandleTypeDef *
hcrc)
Function description
DeInitializes the CRC peripheral.
Parameters
hcrc: CRC handle
Return values
HAL: status
HAL_CRC_MspInit
Function name
void HAL_CRC_MspInit (CRC_HandleTypeDef * hcrc)
Function description
Initializes the CRC MSP.
Parameters
hcrc: CRC handle
Return values
None
HAL_CRC_MspDeInit
Function name
void HAL_CRC_MspDeInit (CRC_HandleTypeDef * hcrc)
Function description
DeInitializes the CRC MSP.
Parameters
hcrc: CRC handle
Return values
None
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HAL_CRC_Accumulate
Function name
uint32_t HAL_CRC_Accumulate (CRC_HandleTypeDef * hcrc,
uint32_t pBuffer, uint32_t BufferLength)
Function description
Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data
buffer starting with the previously computed CRC as initialization
value.
Parameters
hcrc: CRC handle
pBuffer: pointer to the input data buffer, exact input data
format is provided by hcrc->InputDataFormat.
BufferLength: input data buffer length (number of bytes if
pBuffer type is * uint8_t, number of half-words if pBuffer type
is * uint16_t, number of words if pBuffer type is * uint32_t).
Return values
uint32_t: CRC (returned value LSBs for CRC shorter than 32
bits)
Notes
By default, the API expects a uint32_t pointer as input buffer
parameter. Input buffer pointers with other types simply need
to be cast in uint32_t and the API will internally adjust its input
data processing based on the handle field hcrc-
>InputDataFormat.
HAL_CRC_Calculate
Function name
uint32_t HAL_CRC_Calculate (CRC_HandleTypeDef * hcrc,
uint32_t pBuffer, uint32_t BufferLength)
Function description
Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data
buffer starting with hcrc->Instance->INIT as initialization value.
Parameters
hcrc: CRC handle
pBuffer: pointer to the input data buffer, exact input data
format is provided by hcrc->InputDataFormat.
BufferLength: input data buffer length (number of bytes if
pBuffer type is * uint8_t, number of half-words if pBuffer type
is * uint16_t, number of words if pBuffer type is * uint32_t).
Return values
uint32_t: CRC (returned value LSBs for CRC shorter than 32
bits)
Notes
By default, the API expects a uint32_t pointer as input buffer
parameter. Input buffer pointers with other types simply need
to be cast in uint32_t and the API will internally adjust its input
data processing based on the handle field hcrc-
>InputDataFormat.
HAL_CRC_GetState
Function name
HAL_CRC_StateTypeDef HAL_CRC_GetState
(CRC_HandleTypeDef * hcrc)
Function description
Returns the CRC state.
Parameters
hcrc: CRC handle
Return values
HAL: state
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11.3 CRC Firmware driver defines
11.3.1 CRC
Default CRC computation initialization value
DEFAULT_CRC_INITVALUE
Indicates whether or not default init value is used
DEFAULT_INIT_VALUE_ENABLE
DEFAULT_INIT_VALUE_DISABLE
Indicates whether or not default polynomial is used
DEFAULT_POLYNOMIAL_ENABLE
DEFAULT_POLYNOMIAL_DISABLE
Default CRC generating polynomial
DEFAULT_CRC32_POLY
CRC Exported Constants
HAL_CRC_Input_Data_Reverse
HAL_CRC_Output_Data_Reverse
CRC Exported Macros
__HAL_CRC_RESET_HANDLE_STATE
Description:
Reset CRC handle state.
Parameters:
__HANDLE__: CRC handle.
Return value:
None
__HAL_CRC_DR_RESET
Description:
Reset CRC Data Register.
Parameters:
__HANDLE__: CRC handle
Return value:
None.
__HAL_CRC_INITIALCRCVALUE_CONFIG
Description:
Set CRC INIT non-default value.
Parameters:
__HANDLE__: : CRC handle
__INIT__: : 32-bit initial value
Return value:
None.
__HAL_CRC_SET_IDR
Description:
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Stores a 8-bit data in the Independent
Data(ID) register.
Parameters:
__HANDLE__: CRC handle
__VALUE__: 8-bit value to be stored in
the ID register
Return value:
None
__HAL_CRC_GET_IDR
Description:
Returns the 8-bit data stored in the
Independent Data(ID) register.
Parameters:
__HANDLE__: CRC handle
Return value:
8-bit: value of the ID register
CRC input buffer format
CRC_INPUTDATA_FORMAT_UNDEFINED
CRC_INPUTDATA_FORMAT_BYTES
CRC_INPUTDATA_FORMAT_HALFWORDS
CRC_INPUTDATA_FORMAT_WORDS
Polynomial sizes to configure the IP
CRC_POLYLENGTH_32B
CRC_POLYLENGTH_16B
CRC_POLYLENGTH_8B
CRC_POLYLENGTH_7B
CRC polynomial possible sizes actual definitions
HAL_CRC_LENGTH_32B
HAL_CRC_LENGTH_16B
HAL_CRC_LENGTH_8B
HAL_CRC_LENGTH_7B
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12 HAL CRC Extension Driver
12.1 CRCEx Firmware driver API description
12.1.1 CRC Extended features functions
This subsection provides function allowing to:
Set CRC polynomial if different from default one.
This section contains the following APIs:
HAL_CRCEx_Polynomial_Set()
HAL_CRCEx_Input_Data_Reverse()
HAL_CRCEx_Output_Data_Reverse()
12.1.2 Detailed description of functions
HAL_CRCEx_Polynomial_Set
Function name
HAL_StatusTypeDef HAL_CRCEx_Polynomial_Set
(CRC_HandleTypeDef * hcrc, uint32_t Pol, uint32_t
PolyLength)
Function description
Initializes the CRC polynomial if different from default one.
Parameters
hcrc: CRC handle
Pol: CRC generating polynomial (7, 8, 16 or 32-bit long) This
parameter is written in normal representation, e.g. for a
polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written
0x65 for a polynomial of degree 16, X^16 + X^12 + X^5 + 1 is
written 0x1021
PolyLength: CRC polynomial length This parameter can be
one of the following values:
CRC_POLYLENGTH_7B: 7-bit long CRC (generating
polynomial of degree 7)
CRC_POLYLENGTH_8B: 8-bit long CRC (generating
polynomial of degree 8)
CRC_POLYLENGTH_16B: 16-bit long CRC (generating
polynomial of degree 16)
CRC_POLYLENGTH_32B: 32-bit long CRC (generating
polynomial of degree 32)
Return values
HAL: status
HAL_CRCEx_Input_Data_Reverse
Function name
HAL_StatusTypeDef HAL_CRCEx_Input_Data_Reverse
(CRC_HandleTypeDef * hcrc, uint32_t InputReverseMode)
Function description
Set the Reverse Input data mode.
Parameters
hcrc: CRC handle
InputReverseMode: Input Data inversion mode This
parameter can be one of the following values:
CRC_INPUTDATA_INVERSION_NONE no change in bit
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order (default value)
CRC_INPUTDATA_INVERSION_BYTE: Byte-wise bit
reversal
CRC_INPUTDATA_INVERSION_HALFWORD:
HalfWord-wise bit reversal
CRC_INPUTDATA_INVERSION_WORD: Word-wise bit
reversal
Return values
HAL: status
HAL_CRCEx_Output_Data_Reverse
Function name
HAL_StatusTypeDef HAL_CRCEx_Output_Data_Reverse
(CRC_HandleTypeDef * hcrc, uint32_t OutputReverseMode)
Function description
Set the Reverse Output data mode.
Parameters
hcrc: CRC handle
OutputReverseMode: Output Data inversion mode This
parameter can be one of the following values:
CRC_OUTPUTDATA_INVERSION_DISABLE: no CRC
inversion (default value)
CRC_OUTPUTDATA_INVERSION_ENABLE: bit-level
inversion (e.g for a 8-bit CRC: 0xB5 becomes 0xAD)
Return values
HAL: status
12.2 CRCEx Firmware driver defines
12.2.1 CRCEx
CRCEx Exported Macros
__HAL_CRC_OUTPUTREVERSAL_ENABLE
Description:
Set CRC output reversal.
Parameters:
__HANDLE__: : CRC handle
Return value:
None.
__HAL_CRC_OUTPUTREVERSAL_DISABLE
Description:
Unset CRC output reversal.
Parameters:
__HANDLE__: : CRC handle
Return value:
None.
__HAL_CRC_POLYNOMIAL_CONFIG
Description:
Set CRC non-default polynomial.
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Parameters:
__HANDLE__: : CRC handle
__POLYNOMIAL__: 7, 8, 16 or 32-bit
polynomial
Return value:
None.
CRC Extended input data inversion modes
CRC_INPUTDATA_INVERSION_NONE
CRC_INPUTDATA_INVERSION_BYTE
CRC_INPUTDATA_INVERSION_HALFWORD
CRC_INPUTDATA_INVERSION_WORD
CRC Extended output data inversion modes
CRC_OUTPUTDATA_INVERSION_DISABLE
CRC_OUTPUTDATA_INVERSION_ENABLE
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13 HAL CRYP Generic Driver
13.1 CRYP Firmware driver registers structures
13.1.1 CRYP_InitTypeDef
Data Fields
uint32_t DataType
uint8_t * pKey
uint8_t * pInitVect
Field Documentation
uint32_t CRYP_InitTypeDef::DataType
32-bit data, 16-bit data, 8-bit data or 1-bit string. This parameter can be a value of
CRYP_Data_Type
uint8_t* CRYP_InitTypeDef::pKey
The key used for encryption/decryption
uint8_t* CRYP_InitTypeDef::pInitVect
The initialization vector used also as initialization counter in CTR mode
13.1.2 CRYP_HandleTypeDef
Data Fields
AES_TypeDef * Instance
CRYP_InitTypeDef Init
uint8_t * pCrypInBuffPtr
uint8_t * pCrypOutBuffPtr
__IO uint16_t CrypInCount
__IO uint16_t CrypOutCount
HAL_StatusTypeDef Status
HAL_PhaseTypeDef Phase
DMA_HandleTypeDef * hdmain
DMA_HandleTypeDef * hdmaout
HAL_LockTypeDef Lock
__IO HAL_CRYP_STATETypeDef State
Field Documentation
AES_TypeDef* CRYP_HandleTypeDef::Instance
Register base address
CRYP_InitTypeDef CRYP_HandleTypeDef::Init
CRYP required parameters
uint8_t* CRYP_HandleTypeDef::pCrypInBuffPtr
Pointer to CRYP processing (encryption, decryption,...) buffer
uint8_t* CRYP_HandleTypeDef::pCrypOutBuffPtr
Pointer to CRYP processing (encryption, decryption,...) buffer
__IO uint16_t CRYP_HandleTypeDef::CrypInCount
Counter of inputed data
__IO uint16_t CRYP_HandleTypeDef::CrypOutCount
Counter of outputed data
HAL_StatusTypeDef CRYP_HandleTypeDef::Status
CRYP peripheral status
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HAL_PhaseTypeDef CRYP_HandleTypeDef::Phase
CRYP peripheral phase
DMA_HandleTypeDef* CRYP_HandleTypeDef::hdmain
CRYP In DMA handle parameters
DMA_HandleTypeDef* CRYP_HandleTypeDef::hdmaout
CRYP Out DMA handle parameters
HAL_LockTypeDef CRYP_HandleTypeDef::Lock
CRYP locking object
__IO HAL_CRYP_STATETypeDef CRYP_HandleTypeDef::State
CRYP peripheral state
13.2 CRYP Firmware driver API description
13.2.1 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize the CRYP according to the specified parameters in the CRYP_InitTypeDef
and creates the associated handle
DeInitialize the CRYP peripheral
Initialize the CRYP MSP
DeInitialize CRYP MSP
This section contains the following APIs:
HAL_CRYP_Init()
HAL_CRYP_DeInit()
HAL_CRYP_MspInit()
HAL_CRYP_MspDeInit()
13.2.2 AES processing functions
This section provides functions allowing to:
Encrypt plaintext using AES algorithm in different chaining modes
Decrypt cyphertext using AES algorithm in different chaining modes
Three processing functions are available:
Polling mode
Interrupt mode
DMA mode
This section contains the following APIs:
HAL_CRYP_AESECB_Encrypt()
HAL_CRYP_AESCBC_Encrypt()
HAL_CRYP_AESCTR_Encrypt()
HAL_CRYP_AESECB_Decrypt()
HAL_CRYP_AESCBC_Decrypt()
HAL_CRYP_AESCTR_Decrypt()
HAL_CRYP_AESECB_Encrypt_IT()
HAL_CRYP_AESCBC_Encrypt_IT()
HAL_CRYP_AESCTR_Encrypt_IT()
HAL_CRYP_AESECB_Decrypt_IT()
HAL_CRYP_AESCBC_Decrypt_IT()
HAL_CRYP_AESCTR_Decrypt_IT()
HAL_CRYP_AESECB_Encrypt_DMA()
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HAL_CRYP_AESCBC_Encrypt_DMA()
HAL_CRYP_AESCTR_Encrypt_DMA()
HAL_CRYP_AESECB_Decrypt_DMA()
HAL_CRYP_AESCBC_Decrypt_DMA()
HAL_CRYP_AESCTR_Decrypt_DMA()
13.2.3 CRYP IRQ handler management
This section provides CRYP IRQ handler function.
This section contains the following APIs:
HAL_CRYP_IRQHandler()
13.2.4 Peripheral State functions
This subsection permits to get in run-time the status of the peripheral.
This section contains the following APIs:
HAL_CRYP_GetState()
13.2.5 DMA callback functions
This section provides DMA callback functions:
DMA Input data transfer complete
DMA Output data transfer complete
DMA error
This section contains the following APIs:
HAL_CRYP_ErrorCallback()
HAL_CRYP_InCpltCallback()
HAL_CRYP_OutCpltCallback()
13.2.6 Detailed description of functions
HAL_CRYP_Init
Function name
HAL_StatusTypeDef HAL_CRYP_Init (CRYP_HandleTypeDef *
hcryp)
Function description
Initializes the CRYP according to the specified parameters in the
CRYP_InitTypeDef and creates the associated handle.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
HAL: status
HAL_CRYP_DeInit
Function name
HAL_StatusTypeDef HAL_CRYP_DeInit
(CRYP_HandleTypeDef * hcryp)
Function description
DeInitializes the CRYP peripheral.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
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Return values
HAL: status
HAL_CRYP_MspInit
Function name
void HAL_CRYP_MspInit (CRYP_HandleTypeDef * hcryp)
Function description
Initializes the CRYP MSP.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
HAL_CRYP_MspDeInit
Function name
void HAL_CRYP_MspDeInit (CRYP_HandleTypeDef * hcryp)
Function description
DeInitializes CRYP MSP.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
HAL_CRYP_AESECB_Encrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES ECB encryption mode then
encrypt pPlainData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Timeout: Specify Timeout value
Return values
HAL: status
HAL_CRYP_AESECB_Decrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES ECB decryption mode then
decrypted pCypherData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Timeout: Specify Timeout value
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Return values
HAL: status
HAL_CRYP_AESCBC_Encrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES CBC encryption mode then
encrypt pPlainData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Timeout: Specify Timeout value
Return values
HAL: status
HAL_CRYP_AESCBC_Decrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES ECB decryption mode then
decrypted pCypherData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Timeout: Specify Timeout value
Return values
HAL: status
HAL_CRYP_AESCTR_Encrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES CTR encryption mode then
encrypt pPlainData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Timeout: Specify Timeout value
Return values
HAL: status
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HAL_CRYP_AESCTR_Decrypt
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData, uint32_t Timeout)
Function description
Initializes the CRYP peripheral in AES CTR decryption mode then
decrypted pCypherData.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Timeout: Specify Timeout value
Return values
HAL: status
HAL_CRYP_AESECB_Encrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES ECB encryption mode using
Interrupt.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
HAL_CRYP_AESCBC_Encrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES CBC encryption mode
using Interrupt.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
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HAL_CRYP_AESCTR_Encrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES CTR encryption mode using
Interrupt.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
HAL_CRYP_AESECB_Decrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES ECB decryption mode using
Interrupt.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
HAL_CRYP_AESCTR_Decrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES CTR decryption mode using
Interrupt.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
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HAL_CRYP_AESCBC_Decrypt_IT
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt_IT
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES CBC decryption mode
using IT.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
HAL_CRYP_AESECB_Encrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES ECB encryption mode using
DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
HAL_CRYP_AESECB_Decrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES ECB decryption mode using
DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
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HAL_CRYP_AESCBC_Encrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES CBC encryption mode
using DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
HAL_CRYP_AESCBC_Decrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES CBC encryption mode
using DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16
bytes
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
HAL_CRYP_AESCTR_Encrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pPlainData, uint16_t
Size, uint8_t * pCypherData)
Function description
Initializes the CRYP peripheral in AES CTR encryption mode using
DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Size: Length of the plaintext buffer, must be a multiple of 16.
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Return values
HAL: status
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HAL_CRYP_AESCTR_Decrypt_DMA
Function name
HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt_DMA
(CRYP_HandleTypeDef * hcryp, uint8_t * pCypherData,
uint16_t Size, uint8_t * pPlainData)
Function description
Initializes the CRYP peripheral in AES CTR decryption mode using
DMA.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
pCypherData: Pointer to the cyphertext buffer (aligned on
u32)
Size: Length of the plaintext buffer, must be a multiple of 16
pPlainData: Pointer to the plaintext buffer (aligned on u32)
Return values
HAL: status
HAL_CRYP_InCpltCallback
Function name
void HAL_CRYP_InCpltCallback (CRYP_HandleTypeDef *
hcryp)
Function description
Input transfer completed callback.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
HAL_CRYP_OutCpltCallback
Function name
void HAL_CRYP_OutCpltCallback (CRYP_HandleTypeDef *
hcryp)
Function description
Output transfer completed callback.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
HAL_CRYP_ErrorCallback
Function name
void HAL_CRYP_ErrorCallback (CRYP_HandleTypeDef *
hcryp)
Function description
CRYP error callback.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
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HAL_CRYP_IRQHandler
Function name
void HAL_CRYP_IRQHandler (CRYP_HandleTypeDef * hcryp)
Function description
This function handles CRYP interrupt request.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
HAL_CRYP_GetState
Function name
HAL_CRYP_STATETypeDef HAL_CRYP_GetState
(CRYP_HandleTypeDef * hcryp)
Function description
Returns the CRYP state.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
HAL: state
13.3 CRYP Firmware driver defines
13.3.1 CRYP
AES Clear Flags
CRYP_CLEARFLAG_CCF
Computation Complete Flag Clear
CRYP_CLEARFLAG_RDERR
Read Error Clear
CRYP_CLEARFLAG_WRERR
Write Error Clear
AES Flags
CRYP_FLAG_CCF
Computation Complete Flag
CRYP_FLAG_RDERR
Read Error Flag
CRYP_FLAG_WRERR
Write Error Flag
AES Interrupts
CRYP_IT_CC
Computation Complete interrupt
CRYP_IT_ERR
Error interrupt
CRYP Algo Mode Direction
CRYP_CR_ALGOMODE_DIRECTION
CRYP_CR_ALGOMODE_AES_ECB_ENCRYPT
CRYP_CR_ALGOMODE_AES_ECB_KEYDERDECRYPT
CRYP_CR_ALGOMODE_AES_CBC_ENCRYPT
CRYP_CR_ALGOMODE_AES_CBC_KEYDERDECRYPT
CRYP_CR_ALGOMODE_AES_CTR_ENCRYPT
CRYP_CR_ALGOMODE_AES_CTR_DECRYPT
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CRYP Data Type
CRYP_DATATYPE_32B
CRYP_DATATYPE_16B
CRYP_DATATYPE_8B
CRYP_DATATYPE_1B
IS_CRYP_DATATYPE
CRYP Exported Macros
__HAL_CRYP_RESET_HANDLE_STATE
Description:
Reset CRYP handle state.
Parameters:
__HANDLE__: specifies the CRYP
handle.
Return value:
None
__HAL_CRYP_ENABLE
Description:
Enable/Disable the CRYP peripheral.
Parameters:
__HANDLE__: specifies the CRYP
handle.
Return value:
None
__HAL_CRYP_DISABLE
__HAL_CRYP_SET_MODE
Description:
Set the algorithm mode: AES-ECB, AES-
CBC, AES-CTR, DES-ECB, DES-CBC,...
Parameters:
__HANDLE__: specifies the CRYP
handle.
__MODE__: The algorithm mode.
Return value:
None
__HAL_CRYP_GET_FLAG
Description:
Check whether the specified CRYP flag is
set or not.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__FLAG__: specifies the flag to check.
This parameter can be one of the
following values:
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CRYP_FLAG_CCF : Computation
Complete Flag
CRYP_FLAG_RDERR : Read Error
Flag
CRYP_FLAG_WRERR : Write Error
Flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_CRYP_CLEAR_FLAG
Description:
Clear the CRYP pending flag.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__FLAG__: specifies the flag to clear.
This parameter can be one of the
following values:
CRYP_CLEARFLAG_CCF :
Computation Complete Clear Flag
CRYP_CLEARFLAG_RDERR :
Read Error Clear
CRYP_CLEARFLAG_WRERR :
Write Error Clear
Return value:
None
__HAL_CRYP_ENABLE_IT
Description:
Enable the CRYP interrupt.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__INTERRUPT__: CRYP Interrupt.
Return value:
None
__HAL_CRYP_DISABLE_IT
Description:
Disable the CRYP interrupt.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__INTERRUPT__: CRYP interrupt.
Return value:
None
__HAL_CRYP_GET_IT_SOURCE
Description:
Checks if the specified CRYP interrupt
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source is enabled or disabled.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__INTERRUPT__: CRYP interrupt source
to check This parameter can be one of
the following values:
CRYP_IT_CC : Computation
Complete interrupt
CRYP_IT_ERR : Error interrupt
(used for RDERR and WRERR)
Return value:
State: of interruption (SET or RESET)
__HAL_CRYP_CLEAR_IT
Description:
Clear the CRYP pending IT.
Parameters:
__HANDLE__: specifies the CRYP
handle.
__IT__: specifies the IT to clear. This
parameter can be one of the following
values:
CRYP_CLEARFLAG_CCF :
Computation Complete Clear Flag
CRYP_CLEARFLAG_RDERR :
Read Error Clear
CRYP_CLEARFLAG_WRERR :
Write Error Clear
Return value:
None
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14 HAL CRYP Extension Driver
14.1 CRYPEx Firmware driver API description
14.1.1 Extended features functions
This section provides callback functions:
Computation completed.
This section contains the following APIs:
HAL_CRYPEx_ComputationCpltCallback()
14.1.2 Detailed description of functions
HAL_CRYPEx_ComputationCpltCallback
Function name
void HAL_CRYPEx_ComputationCpltCallback
(CRYP_HandleTypeDef * hcryp)
Function description
Computation completed callbacks.
Parameters
hcryp: pointer to a CRYP_HandleTypeDef structure that
contains the configuration information for CRYP module
Return values
None
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15 HAL DAC Generic Driver
15.1 DAC Firmware driver registers structures
15.1.1 DAC_HandleTypeDef
Data Fields
DAC_TypeDef * Instance
__IO HAL_DAC_StateTypeDef State
HAL_LockTypeDef Lock
DMA_HandleTypeDef * DMA_Handle1
DMA_HandleTypeDef * DMA_Handle2
__IO uint32_t ErrorCode
Field Documentation
DAC_TypeDef* DAC_HandleTypeDef::Instance
Register base address
__IO HAL_DAC_StateTypeDef DAC_HandleTypeDef::State
DAC communication state
HAL_LockTypeDef DAC_HandleTypeDef::Lock
DAC locking object
DMA_HandleTypeDef* DAC_HandleTypeDef::DMA_Handle1
Pointer DMA handler for channel 1
DMA_HandleTypeDef* DAC_HandleTypeDef::DMA_Handle2
Pointer DMA handler for channel 2
__IO uint32_t DAC_HandleTypeDef::ErrorCode
DAC Error code
15.1.2 DAC_ChannelConfTypeDef
Data Fields
uint32_t DAC_Trigger
uint32_t DAC_OutputBuffer
Field Documentation
uint32_t DAC_ChannelConfTypeDef::DAC_Trigger
Specifies the external trigger for the selected DAC channel. This parameter can be a
value of DAC_trigger_selection
uint32_t DAC_ChannelConfTypeDef::DAC_OutputBuffer
Specifies whether the DAC channel output buffer is enabled or disabled. This
parameter can be a value of DAC_output_buffer
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15.2 DAC Firmware driver API description
15.2.1 DAC Peripheral features
DAC Channels
STM32F0 devices integrates no, one or two 12-bit Digital Analog Converters. STM32L05x
& STM32L06x devices have one converter (channel1) STM32L07x & STM32L08x devices
have two converters (i.e. channel1 & channel2) When 2 converters are present (i.e.
channel1 & channel2) they can be used independently or simultaneously (dual mode):
1. DAC channel1 with DAC_OUT1 (PA4) as output
2. DAC channel2 with DAC_OUT2 (PA5) as output (STM32L07x/STM32L08x only)
3. Channel1 & channel2 can be used independently or simultaneously in dual mode
(STM32L07x/STM32L08x only)
DAC Triggers
Digital to Analog conversion can be non-triggered using DAC_Trigger_None and
DAC_OUT1/DAC_OUT2 is available once writing to DHRx register.
Digital to Analog conversion can be triggered by:
1. External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9. The used
pin (GPIOx_Pin9) must be configured in input mode.
2. Timers TRGO: STM32L05x/STM32L06x : TIM2, TIM6 and TIM21
STM32L07x/STM32L08x : TIM2, TIM3, TIM6, TIM7 and TIM21
(DAC_Trigger_T2_TRGO, DAC_Trigger_T6_TRGO...)
3. Software using DAC_Trigger_Software
DAC Buffer mode feature
Each DAC channel integrates an output buffer that can be used to reduce the output
impedance, and to drive external loads directly without having to add an external
operational amplifier. To enable, the output buffer use sConfig.DAC_OutputBuffer =
DAC_OutputBuffer_Enable;
Refer to the device datasheet for more details about output impedance value with
and without output buffer.
DAC wave generation feature
Both DAC channels can be used to generate
1. Noise wave using HAL_DACEx_NoiseWaveGenerate()
2. Triangle wave using HAL_DACEx_TriangleWaveGenerate()
DAC data format
The DAC data format can be:
1. 8-bit right alignment using DAC_ALIGN_8B_R
2. 12-bit left alignment using DAC_ALIGN_12B_L
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3. 12-bit right alignment using DAC_ALIGN_12B_R
DAC data value to voltage correspondence
The analog output voltage on each DAC channel pin is determined by the following
equation: DAC_OUTx = VREF+ * DOR / 4095 with DOR is the Data Output Register VEF+
is the input voltage reference (refer to the device datasheet) e.g. To set DAC_OUT1 to
0.7V, use Assuming that VREF+ = 3.3V, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
DMA requests
A DMA1 request can be generated when an external trigger (but not a software trigger)
occurs if DMA1 requests are enabled using HAL_DAC_Start_DMA()
DMA1 requests are mapped as following:
1. DAC channel1 : mapped on DMA1 Request9 channel2 which must be already
configured
2. DAC channel2 : mapped on DMA1 Request15 channel4 which must be already
configured (STM32L07x/STM32L08x only) For Dual mode (STM32L07x/STM32L08x
only) and specific signal Triangle and noise generation please refer to Extension
Features Driver description
15.2.2 How to use this driver
DAC APB clock must be enabled to get write access to DAC registers using
HAL_DAC_Init()
Configure DAC_OUT1: PA4 in analog mode.
Configure DAC_OUT2: PA5 in analog mode (STM32L07x/STM32L08x only).
Configure the DAC channel using HAL_DAC_ConfigChannel() function.
Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA functions
Polling mode IO operation
Start the DAC peripheral using HAL_DAC_Start()
To read the DAC last data output value value, use the HAL_DAC_GetValue() function.
Stop the DAC peripheral using HAL_DAC_Stop()
DMA mode IO operation
Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify
the length of data to be transferred at each end of conversion
At the middle of data transfer HAL_DAC_ConvHalfCpltCallbackCh1()or
HAL_DAC_ConvHalfCpltCallbackCh2() function is executed and user can add his own
code by customization of function pointer HAL_DAC_ConvHalfCpltCallbackCh1 or
HAL_DAC_ConvHalfCpltCallbackCh2
At The end of data transfer HAL_DAC_ConvCpltCallbackCh1()or
HAL_DAC_ConvCpltCallbackCh2() function is executed and user can add his own
code by customization of function pointer HAL_DAC_ConvCpltCallbackCh1 or
HAL_DAC_ConvCpltCallbackCh2
In case of transfer Error, HAL_DAC_ErrorCallbackCh1() function is executed and user
can add his own code by customization of function pointer
HAL_DAC_ErrorCallbackCh1
In case of DMA underrun, DAC interruption triggers and execute internal function
HAL_DAC_IRQHandler. HAL_DAC_DMAUnderrunCallbackCh1()or
HAL_DAC_DMAUnderrunCallbackCh2() function is executed and user can add his
own code by customization of function pointer HAL_DAC_DMAUnderrunCallbackCh1
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or HAL_DAC_DMAUnderrunCallbackCh2 add his own code by customization of
function pointer HAL_DAC_ErrorCallbackCh1
Stop the DAC peripheral using HAL_DAC_Stop_DMA()
DAC HAL driver macros list
Below the list of most used macros in DAC HAL driver.
__HAL_DAC_ENABLE : Enable the DAC peripheral
__HAL_DAC_DISABLE : Disable the DAC peripheral
__HAL_DAC_CLEAR_FLAG: Clear the DAC's pending flags
__HAL_DAC_GET_FLAG: Get the selected DAC's flag status
You can refer to the DAC HAL driver header file for more useful macros
15.2.3 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize and configure the DAC.
De-initialize the DAC.
This section contains the following APIs:
HAL_DAC_Init()
HAL_DAC_DeInit()
HAL_DAC_MspInit()
HAL_DAC_MspDeInit()
15.2.4 IO operation functions
This section provides functions allowing to:
Start conversion.
Stop conversion.
Start conversion and enable DMA transfer.
Stop conversion and disable DMA transfer.
Get result of conversion.
Get result of dual mode conversion (STM32L07xx/STM32L08xx only)
This section contains the following APIs:
HAL_DAC_Start()
HAL_DAC_Stop()
HAL_DAC_Start_DMA()
HAL_DAC_Stop_DMA()
HAL_DAC_GetValue()
HAL_DAC_IRQHandler()
HAL_DAC_ConvCpltCallbackCh1()
HAL_DAC_ConvHalfCpltCallbackCh1()
HAL_DAC_ErrorCallbackCh1()
HAL_DAC_DMAUnderrunCallbackCh1()
HAL_DAC_SetValue()
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15.2.5 Peripheral Control functions
This section provides functions allowing to:
Configure channels.
Set the specified data holding register value for DAC channel.
This section contains the following APIs:
HAL_DAC_ConfigChannel()
15.2.6 Peripheral State and Errors functions
This subsection provides functions allowing to
Check the DAC state.
Check the DAC Errors.
This section contains the following APIs:
HAL_DAC_GetState()
HAL_DAC_GetError()
HAL_DAC_SetValue()
15.2.7 Detailed description of functions
HAL_DAC_Init
Function name
HAL_StatusTypeDef HAL_DAC_Init (DAC_HandleTypeDef *
hdac)
Function description
Initializes the DAC peripheral according to the specified
parameters in the DAC_InitStruct.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
HAL: status
HAL_DAC_DeInit
Function name
HAL_StatusTypeDef HAL_DAC_DeInit (DAC_HandleTypeDef *
hdac)
Function description
Deinitializes the DAC peripheral registers to their default reset
values.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
HAL: status
HAL_DAC_MspInit
Function name
void HAL_DAC_MspInit (DAC_HandleTypeDef * hdac)
Function description
Initializes the DAC MSP.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
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HAL_DAC_MspDeInit
Function name
void HAL_DAC_MspDeInit (DAC_HandleTypeDef * hdac)
Function description
DeInitializes the DAC MSP.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DAC_Start
Function name
HAL_StatusTypeDef HAL_DAC_Start (DAC_HandleTypeDef *
hdac, uint32_t Channel)
Function description
Enables DAC and starts conversion of channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
Return values
HAL: status
HAL_DAC_Stop
Function name
HAL_StatusTypeDef HAL_DAC_Stop (DAC_HandleTypeDef *
hdac, uint32_t Channel)
Function description
Disables DAC and stop conversion of channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Return values
HAL: status
HAL_DAC_Start_DMA
Function name
HAL_StatusTypeDef HAL_DAC_Start_DMA
(DAC_HandleTypeDef * hdac, uint32_t Channel, uint32_t *
pData, uint32_t Length, uint32_t Alignment)
Function description
Enables DAC and starts conversion of channel using DMA.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
pData: The destination peripheral Buffer address.
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Length: The length of data to be transferred from memory to
DAC peripheral
Alignment: Specifies the data alignment for DAC channel.
This parameter can be one of the following values:
DAC_ALIGN_8B_R: 8bit right data alignment selected
DAC_ALIGN_12B_L: 12bit left data alignment selected
DAC_ALIGN_12B_R: 12bit right data alignment selected
Return values
HAL: status
HAL_DAC_Stop_DMA
Function name
HAL_StatusTypeDef HAL_DAC_Stop_DMA
(DAC_HandleTypeDef * hdac, uint32_t Channel)
Function description
Disables DAC and stop conversion of channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Return values
HAL: status
HAL_DAC_SetValue
Function name
HAL_StatusTypeDef HAL_DAC_SetValue
(DAC_HandleTypeDef * hdac, uint32_t Channel, uint32_t
Alignment, uint32_t Data)
Function description
Set the specified data holding register value for DAC channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Alignment: Specifies the data alignment. This parameter
can be one of the following values:
DAC_ALIGN_8B_R: 8bit right data alignment selected
DAC_ALIGN_12B_L: 12bit left data alignment selected
DAC_ALIGN_12B_R: 12bit right data alignment selected
Data: Data to be loaded in the selected data holding register.
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
Alignment: Specifies the data alignment. This parameter
can be one of the following values:
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DAC_ALIGN_8B_R: 8bit right data alignment selected
DAC_ALIGN_12B_L: 12bit left data alignment selected
DAC_ALIGN_12B_R: 12bit right data alignment selected
Data: Data to be loaded in the selected data holding register.
Return values
HAL: status
HAL: status
HAL_DAC_GetValue
Function name
uint32_t HAL_DAC_GetValue (DAC_HandleTypeDef * hdac,
uint32_t Channel)
Function description
Returns the last data output value of the selected DAC channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Return values
The: selected DAC channel data output value.
HAL_DAC_IRQHandler
Function name
void HAL_DAC_IRQHandler (DAC_HandleTypeDef * hdac)
Function description
Handles DAC interrupt request.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DAC_ConvCpltCallbackCh1
Function name
void HAL_DAC_ConvCpltCallbackCh1 (DAC_HandleTypeDef *
hdac)
Function description
Conversion complete callback in non blocking mode for Channel1.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DAC_ConvHalfCpltCallbackCh1
Function name
void HAL_DAC_ConvHalfCpltCallbackCh1
(DAC_HandleTypeDef * hdac)
Function description
Conversion half DMA transfer callback in non blocking mode for
Channel1.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
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Return values
None
HAL_DAC_ErrorCallbackCh1
Function name
void HAL_DAC_ErrorCallbackCh1 (DAC_HandleTypeDef *
hdac)
Function description
Error DAC callback for Channel1.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DAC_DMAUnderrunCallbackCh1
Function name
void HAL_DAC_DMAUnderrunCallbackCh1
(DAC_HandleTypeDef * hdac)
Function description
DMA underrun DAC callback for channel1.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DAC_ConfigChannel
Function name
HAL_StatusTypeDef HAL_DAC_ConfigChannel
(DAC_HandleTypeDef * hdac, DAC_ChannelConfTypeDef *
sConfig, uint32_t Channel)
Function description
Configures the selected DAC channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
sConfig: DAC configuration structure.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Return values
HAL: status
HAL_DAC_GetState
Function name
HAL_DAC_StateTypeDef HAL_DAC_GetState
(DAC_HandleTypeDef * hdac)
Function description
return the DAC state
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
HAL: state
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HAL_DAC_GetError
Function name
uint32_t HAL_DAC_GetError (DAC_HandleTypeDef * hdac)
Function description
Return the DAC error code.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
DAC: Error Code
15.3 DAC Firmware driver defines
15.3.1 DAC
DAC Channel selection
DAC_CHANNEL_1
DAC_CHANNEL_2
IS_DAC_CHANNEL
DAC data
IS_DAC_DATA
DAC data alignement
DAC_ALIGN_12B_R
DAC_ALIGN_12B_L
DAC_ALIGN_8B_R
IS_DAC_ALIGN
DAC Error Code
HAL_DAC_ERROR_NONE
No error
HAL_DAC_ERROR_DMAUNDERRUNCH1
DAC channel1 DAM underrun error
HAL_DAC_ERROR_DMAUNDERRUNCH2
DAC channel2 DAM underrun error
HAL_DAC_ERROR_DMA
DMA error
DAC Exported Macros
__HAL_DAC_RESET_HANDLE_STATE
Description:
Reset DAC handle state.
Parameters:
__HANDLE__: specifies the DAC handle.
Return value:
None
__HAL_DAC_ENABLE
Description:
Enable the DAC channel.
Parameters:
__HANDLE__: specifies the DAC handle.
__DAC_CHANNEL__: specifies the DAC
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channel
Return value:
None
__HAL_DAC_DISABLE
Description:
Disable the DAC channel.
Parameters:
__HANDLE__: specifies the DAC handle
__DAC_CHANNEL__: specifies the DAC
channel.
Return value:
None
__HAL_DAC_ENABLE_IT
__HAL_DAC_DISABLE_IT
Description:
Disable the DAC interrupt.
Parameters:
__HANDLE__: specifies the DAC handle
__INTERRUPT__: specifies the DAC
interrupt.
Return value:
None
__HAL_DAC_GET_IT_SOURCE
Description:
Check whether the specified DAC interrupt
source is enabled or not.
Parameters:
__HANDLE__: DAC handle
__INTERRUPT__: DAC interrupt source to
check This parameter can be any
combination of the following values:
DAC_IT_DMAUDR1: DAC channel 1
DMA underrun interrupt
DAC_IT_DMAUDR2: DAC channel 2
DMA underrun interrupt
(STM32L072xx STM32L073xx
STM32L082xx STM32L083xx only)
Return value:
State: of interruption (SET or RESET)
__HAL_DAC_GET_FLAG
Description:
Get the selected DAC's flag status.
Parameters:
__HANDLE__: specifies the DAC handle.
__FLAG__: specifies the FLAG.
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Return value:
None
__HAL_DAC_CLEAR_FLAG
Description:
Clear the DAC's flag.
Parameters:
__HANDLE__: specifies the DAC handle.
__FLAG__: specifies the FLAG.
Return value:
None
DAC flags definition
DAC_FLAG_DMAUDR1
DAC_FLAG_DMAUDR2
DAC IT definition
DAC_IT_DMAUDR1
DAC_IT_DMAUDR2
DAC output buffer
DAC_OUTPUTBUFFER_ENABLE
DAC_OUTPUTBUFFER_DISABLE
IS_DAC_OUTPUT_BUFFER_STATE
DAC trigger selection
DAC_TRIGGER_NONE
Conversion is automatic once the DAC1_DHRxxxx
register has been loaded, and not by external trigger
DAC_TRIGGER_T6_TRGO
TIM6 TRGO selected as external conversion trigger for
DAC channel
DAC_TRIGGER_T21_TRGO
TIM21 TRGO selected as external conversion trigger for
DAC channel
DAC_TRIGGER_T2_TRGO
TIM2 TRGO selected as external conversion trigger for
DAC channel
DAC_TRIGGER_EXT_IT9
EXTI Line9 event selected as external conversion trigger
for DAC channel
DAC_TRIGGER_SOFTWARE
Conversion started by software trigger for DAC channel
DAC_TRIGGER_T3_TRGO
TIM3 TRGO selected as external conversion trigger for
DAC channel
DAC_TRIGGER_T3_CH3
TIM3 CH3 selected as external conversion trigger for DAC
channel
DAC_TRIGGER_T7_TRGO
TIM7 TRGO selected as external conversion trigger for
DAC channel
IS_DAC_TRIGGER
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16 HAL DAC Extension Driver
16.1 DACEx Firmware driver API description
16.1.1 How to use this driver
When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used
simultaneously) : Use HAL_DACEx_DualGetValue() to get digital data to be converted
and use HAL_DACEx_DualSetValue() to set digital value to converted simultaneously
in Channel 1 and Channel 2.
Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
16.1.2 Detailed description of functions
HAL_DACEx_TriangleWaveGenerate
Function name
HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate
(DAC_HandleTypeDef * hdac, uint32_t Channel, uint32_t
Amplitude)
Function description
Enables or disables the selected DAC channel wave generation.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Amplitude: Select max triangle amplitude. This parameter
can be one of the following values:
DAC_TRIANGLEAMPLITUDE_1: Select max triangle
amplitude of 1
DAC_TRIANGLEAMPLITUDE_3: Select max triangle
amplitude of 3
DAC_TRIANGLEAMPLITUDE_7: Select max triangle
amplitude of 7
DAC_TRIANGLEAMPLITUDE_15: Select max triangle
amplitude of 15
DAC_TRIANGLEAMPLITUDE_31: Select max triangle
amplitude of 31
DAC_TRIANGLEAMPLITUDE_63: Select max triangle
amplitude of 63
DAC_TRIANGLEAMPLITUDE_127: Select max triangle
amplitude of 127
DAC_TRIANGLEAMPLITUDE_255: Select max triangle
amplitude of 255
DAC_TRIANGLEAMPLITUDE_511: Select max triangle
amplitude of 511
DAC_TRIANGLEAMPLITUDE_1023: Select max triangle
amplitude of 1023
DAC_TRIANGLEAMPLITUDE_2047: Select max triangle
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amplitude of 2047
DAC_TRIANGLEAMPLITUDE_4095: Select max triangle
amplitude of 4095
Return values
HAL: status
HAL_DACEx_NoiseWaveGenerate
Function name
HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate
(DAC_HandleTypeDef * hdac, uint32_t Channel, uint32_t
Amplitude)
Function description
Enables or disables the selected DAC channel wave generation.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Channel: The selected DAC channel. This parameter can be
one of the following values:
DAC_CHANNEL_1: DAC Channel1 selected
DAC_CHANNEL_2: DAC Channel2 selected
(STM32L07x/STM32L08x only)
Amplitude: Unmask DAC channel LFSR for noise wave
generation. This parameter can be one of the following
values:
DAC_LFSRUNMASK_BIT0: Unmask DAC channel
LFSR bit0 for noise wave generation
DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel
LFSR bit[1:0] for noise wave generation
DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel
LFSR bit[2:0] for noise wave generation
DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel
LFSR bit[3:0] for noise wave generation
DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel
LFSR bit[4:0] for noise wave generation
DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel
LFSR bit[5:0] for noise wave generation
DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel
LFSR bit[6:0] for noise wave generation
DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel
LFSR bit[7:0] for noise wave generation
DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel
LFSR bit[8:0] for noise wave generation
DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel
LFSR bit[9:0] for noise wave generation
DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel
LFSR bit[10:0] for noise wave generation
DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel
LFSR bit[11:0] for noise wave generation
Return values
HAL: status
HAL_DACEx_DualGetValue
Function name
uint32_t HAL_DACEx_DualGetValue (DAC_HandleTypeDef *
hdac)
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Function description
Returns the last data output value of the selected DAC channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
The: selected DAC channel data output value.
HAL_DACEx_DualSetValue
Function name
HAL_StatusTypeDef HAL_DACEx_DualSetValue
(DAC_HandleTypeDef * hdac, uint32_t Alignment, uint32_t
Data1, uint32_t Data2)
Function description
Set the specified data holding register value for dual DAC channel.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Alignment: Specifies the data alignment for dual channel
DAC. This parameter can be one of the following values:
DAC_ALIGN_8B_R: 8bit right data alignment selected
DAC_ALIGN_12B_L: 12bit left data alignment selected
DAC_ALIGN_12B_R: 12bit right data alignment selected
Data1: Data for DAC Channel2 to be loaded in the selected
data holding register.
Data2: Data for DAC Channel1 to be loaded in the selected
data holding register.
Return values
HAL: status
Notes
In dual mode, a unique register access is required to write in
both DAC channels at the same time.
HAL_DACEx_ConvCpltCallbackCh2
Function name
void HAL_DACEx_ConvCpltCallbackCh2
(DAC_HandleTypeDef * hdac)
Function description
Conversion complete callback in non blocking mode for Channel2.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DACEx_ConvHalfCpltCallbackCh2
Function name
void HAL_DACEx_ConvHalfCpltCallbackCh2
(DAC_HandleTypeDef * hdac)
Function description
Conversion half DMA transfer callback in non blocking mode for
Channel2.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
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HAL_DACEx_ErrorCallbackCh2
Function name
void HAL_DACEx_ErrorCallbackCh2 (DAC_HandleTypeDef *
hdac)
Function description
Error DAC callback for Channel2.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
HAL_DACEx_DMAUnderrunCallbackCh2
Function name
void HAL_DACEx_DMAUnderrunCallbackCh2
(DAC_HandleTypeDef * hdac)
Function description
DMA underrun DAC callback for channel2.
Parameters
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
Return values
None
16.2 DACEx Firmware driver defines
16.2.1 DACEx
DACEx lfsrunmask triangleamplitude
DAC_LFSRUNMASK_BIT0
Unmask DAC channel LFSR bit0
for noise wave generation
DAC_LFSRUNMASK_BITS1_0
Unmask DAC channel LFSR
bit[1:0] for noise wave generation
DAC_LFSRUNMASK_BITS2_0
Unmask DAC channel LFSR
bit[2:0] for noise wave generation
DAC_LFSRUNMASK_BITS3_0
Unmask DAC channel LFSR
bit[3:0] for noise wave generation
DAC_LFSRUNMASK_BITS4_0
Unmask DAC channel LFSR
bit[4:0] for noise wave generation
DAC_LFSRUNMASK_BITS5_0
Unmask DAC channel LFSR
bit[5:0] for noise wave generation
DAC_LFSRUNMASK_BITS6_0
Unmask DAC channel LFSR
bit[6:0] for noise wave generation
DAC_LFSRUNMASK_BITS7_0
Unmask DAC channel LFSR
bit[7:0] for noise wave generation
DAC_LFSRUNMASK_BITS8_0
Unmask DAC channel LFSR
bit[8:0] for noise wave generation
DAC_LFSRUNMASK_BITS9_0
Unmask DAC channel LFSR
bit[9:0] for noise wave generation
DAC_LFSRUNMASK_BITS10_0
Unmask DAC channel LFSR
bit[10:0] for noise wave generation
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DAC_LFSRUNMASK_BITS11_0
Unmask DAC channel LFSR
bit[11:0] for noise wave generation
DAC_TRIANGLEAMPLITUDE_1
Select max triangle amplitude of 1
DAC_TRIANGLEAMPLITUDE_3
Select max triangle amplitude of 3
DAC_TRIANGLEAMPLITUDE_7
Select max triangle amplitude of 7
DAC_TRIANGLEAMPLITUDE_15
Select max triangle amplitude of 15
DAC_TRIANGLEAMPLITUDE_31
Select max triangle amplitude of 31
DAC_TRIANGLEAMPLITUDE_63
Select max triangle amplitude of 63
DAC_TRIANGLEAMPLITUDE_127
Select max triangle amplitude of
127
DAC_TRIANGLEAMPLITUDE_255
Select max triangle amplitude of
255
DAC_TRIANGLEAMPLITUDE_511
Select max triangle amplitude of
511
DAC_TRIANGLEAMPLITUDE_1023
Select max triangle amplitude of
1023
DAC_TRIANGLEAMPLITUDE_2047
Select max triangle amplitude of
2047
DAC_TRIANGLEAMPLITUDE_4095
Select max triangle amplitude of
4095
IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE
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17 HAL DMA Generic Driver
17.1 DMA Firmware driver registers structures
17.1.1 DMA_InitTypeDef
Data Fields
uint32_t Request
uint32_t Direction
uint32_t PeriphInc
uint32_t MemInc
uint32_t PeriphDataAlignment
uint32_t MemDataAlignment
uint32_t Mode
uint32_t Priority
Field Documentation
uint32_t DMA_InitTypeDef::Request
Specifies the request selected for the specified channel. This parameter can be a
value of DMA_request
uint32_t DMA_InitTypeDef::Direction
Specifies if the data will be transferred from memory to peripheral, from memory to
memory or from peripheral to memory. This parameter can be a value of
DMA_Data_transfer_direction
uint32_t DMA_InitTypeDef::PeriphInc
Specifies whether the Peripheral address register should be incremented or not. When
Memory to Memory transfer is used, this is the Source Increment mode This
parameter can be a value of DMA_Peripheral_incremented_mode
uint32_t DMA_InitTypeDef::MemInc
Specifies whether the memory address register should be incremented or not. When
Memory to Memory transfer is used, this is the Destination Increment mode This
parameter can be a value of DMA_Memory_incremented_mode
uint32_t DMA_InitTypeDef::PeriphDataAlignment
Specifies the Peripheral data width. When Memory to Memory transfer is used, this is
the Source Alignment format This parameter can be a value of
DMA_Peripheral_data_size
uint32_t DMA_InitTypeDef::MemDataAlignment
Specifies the Memory data width. When Memory to Memory transfer is used, this is
the Destination Alignment format This parameter can be a value of
DMA_Memory_data_size
uint32_t DMA_InitTypeDef::Mode
Specifies the operation mode of the DMAy Channelx (Normal or Circular). This
parameter can be a value of DMA_mode
Note:The circular buffer mode cannot be used if the memory-to-memory data transfer
is configured on the selected Channel
uint32_t DMA_InitTypeDef::Priority
Specifies the software priority for the DMAy Channelx. This parameter can be a value
of DMA_Priority_level
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17.1.2 __DMA_HandleTypeDef
Data Fields
DMA_Channel_TypeDef * Instance
DMA_InitTypeDef Init
HAL_LockTypeDef Lock
__IO HAL_DMA_StateTypeDef State
void * Parent
void(* XferCpltCallback
void(* XferHalfCpltCallback
void(* XferErrorCallback
void(* XferAbortCallback
__IO uint32_t ErrorCode
Field Documentation
DMA_Channel_TypeDef* __DMA_HandleTypeDef::Instance
Register base address
DMA_InitTypeDef __DMA_HandleTypeDef::Init
DMA communication parameters
HAL_LockTypeDef __DMA_HandleTypeDef::Lock
DMA locking object
__IO HAL_DMA_StateTypeDef __DMA_HandleTypeDef::State
DMA transfer state
void* __DMA_HandleTypeDef::Parent
Parent object state
void(* __DMA_HandleTypeDef::XferCpltCallback)(struct __DMA_HandleTypeDef
*hdma)
DMA transfer complete callback
void(* __DMA_HandleTypeDef::XferHalfCpltCallback)(struct
__DMA_HandleTypeDef *hdma)
DMA Half transfer complete callback
void(* __DMA_HandleTypeDef::XferErrorCallback)(struct
__DMA_HandleTypeDef *hdma)
DMA transfer error callback
void(* __DMA_HandleTypeDef::XferAbortCallback)(struct
__DMA_HandleTypeDef *hdma)
DMA transfer abort callback
__IO uint32_t __DMA_HandleTypeDef::ErrorCode
DMA Error code
17.2 DMA Firmware driver API description
17.2.1 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize and configure the DMA
De-Initialize the DMA
This section contains the following APIs:
HAL_DMA_Init()
HAL_DMA_DeInit()
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17.2.2 Peripheral State functions
This subsection provides functions allowing to
Check the DMA state
Get error code
This section contains the following APIs:
HAL_DMA_GetState()
HAL_DMA_GetError()
17.2.3 IO operation functions
This section provides functions allowing to:
Configure the source, destination address and data length and Start DMA transfer
Configure the source, destination address and data length and Start DMA transfer with
interrupt
Abort DMA transfer
Poll for transfer complete
Handle DMA interrupt request
This section contains the following APIs:
HAL_DMA_Start()
HAL_DMA_Start_IT()
HAL_DMA_Abort()
HAL_DMA_Abort_IT()
HAL_DMA_PollForTransfer()
HAL_DMA_IRQHandler()
17.2.4 Detailed description of functions
HAL_DMA_Init
Function name
HAL_StatusTypeDef HAL_DMA_Init (DMA_HandleTypeDef *
hdma)
Function description
Initializes the DMA according to the specified parameters in the
DMA_InitTypeDef and create the associated handle.
Parameters
hdma: Pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
HAL: status
HAL_DMA_DeInit
Function name
HAL_StatusTypeDef HAL_DMA_DeInit (DMA_HandleTypeDef *
hdma)
Function description
DeInitializes the DMA peripheral.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
HAL: status
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HAL_DMA_Start
Function name
HAL_StatusTypeDef HAL_DMA_Start (DMA_HandleTypeDef *
hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t
DataLength)
Function description
Starts the DMA Transfer.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
SrcAddress: The source memory Buffer address
DstAddress: The destination memory Buffer address
DataLength: The length of data to be transferred from
source to destination
Return values
HAL: status
HAL_DMA_Start_IT
Function name
HAL_StatusTypeDef HAL_DMA_Start_IT
(DMA_HandleTypeDef * hdma, uint32_t SrcAddress, uint32_t
DstAddress, uint32_t DataLength)
Function description
Start the DMA Transfer with interrupt enabled.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
SrcAddress: The source memory Buffer address
DstAddress: The destination memory Buffer address
DataLength: The length of data to be transferred from
source to destination
Return values
HAL: status
HAL_DMA_Abort
Function name
HAL_StatusTypeDef HAL_DMA_Abort (DMA_HandleTypeDef *
hdma)
Function description
Aborts the DMA Transfer.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
HAL: status
HAL_DMA_Abort_IT
Function name
HAL_StatusTypeDef HAL_DMA_Abort_IT
(DMA_HandleTypeDef * hdma)
Function description
Aborts the DMA Transfer in Interrupt mode.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Stream.
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Return values
HAL: status
HAL_DMA_PollForTransfer
Function name
HAL_StatusTypeDef HAL_DMA_PollForTransfer
(DMA_HandleTypeDef * hdma, uint32_t CompleteLevel,
uint32_t Timeout)
Function description
Polling for transfer complete.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
CompleteLevel: Specifies the DMA level complete.
Timeout: Timeout duration.
Return values
HAL: status
HAL_DMA_IRQHandler
Function name
void HAL_DMA_IRQHandler (DMA_HandleTypeDef * hdma)
Function description
Handles DMA interrupt request.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
None
HAL_DMA_GetState
Function name
HAL_DMA_StateTypeDef HAL_DMA_GetState
(DMA_HandleTypeDef * hdma)
Function description
Returns the DMA state.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
HAL: state
HAL_DMA_GetError
Function name
uint32_t HAL_DMA_GetError (DMA_HandleTypeDef * hdma)
Function description
Return the DMA error code.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
Channel.
Return values
DMA: Error Code
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17.3 DMA Firmware driver defines
17.3.1 DMA
DMA Data Buffer Size Check
IS_DMA_BUFFER_SIZE
DMA Data Transfer directions
DMA_PERIPH_TO_MEMORY
Peripheral to memory direction
DMA_MEMORY_TO_PERIPH
Memory to peripheral direction
DMA_MEMORY_TO_MEMORY
Memory to memory direction
IS_DMA_DIRECTION
DMA Error Codes
HAL_DMA_ERROR_NONE
No error
HAL_DMA_ERROR_TE
Transfer error
HAL_DMA_ERROR_NO_XFER
no ongoing transfer
HAL_DMA_ERROR_TIMEOUT
Timeout error
IS_DMA_ALL_INSTANCE
IS_DMA_ALL_CONTROLLER
DMA Exported Macros
__HAL_DMA_RESET_HANDLE_STATE
Description:
Reset DMA handle state.
Parameters:
__HANDLE__: DMA handle
Return value:
None
__HAL_DMA_ENABLE
Description:
Enable the specified DMA Channel.
Parameters:
__HANDLE__: DMA handle
Return value:
None.
__HAL_DMA_DISABLE
Description:
Disable the specified DMA Channel.
Parameters:
__HANDLE__: DMA handle
Return value:
None.
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__HAL_DMA_GET_TC_FLAG_INDEX
Description:
Returns the current DMA Channel transfer
complete flag.
Parameters:
__HANDLE__: DMA handle
Return value:
The: specified transfer complete flag
index.
__HAL_DMA_GET_HT_FLAG_INDEX
Description:
Returns the current DMA Channel half
transfer complete flag.
Parameters:
__HANDLE__: DMA handle
Return value:
The: specified half transfer complete flag
index.
__HAL_DMA_GET_TE_FLAG_INDEX
Description:
Returns the current DMA Channel transfer
error flag.
Parameters:
__HANDLE__: DMA handle
Return value:
The: specified transfer error flag index.
__HAL_DMA_GET_GI_FLAG_INDEX
Description:
Returns the current DMA Channel Global
interrupt flag.
Parameters:
__HANDLE__: DMA handle
Return value:
The: specified transfer error flag index.
__HAL_DMA_GET_FLAG
Description:
Get the DMA Channel pending flags.
Parameters:
__HANDLE__: DMA handle
__FLAG__: Get the specified flag. This
parameter can be any combination of the
following values:
DMA_FLAG_TCIFx: Transfer
complete flag
DMA_FLAG_HTIFx: Half transfer
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complete flag
DMA_FLAG_TEIFx: Transfer error
flag
DMA_ISR_GIFx: Global interrupt flag
Where x can be 0_4, 1_5, 2_6 or 3_7
to select the DMA Channel flag.
Return value:
The: state of FLAG (SET or RESET).
__HAL_DMA_CLEAR_FLAG
Description:
Clears the DMA Channel pending flags.
Parameters:
__HANDLE__: DMA handle
__FLAG__: specifies the flag to clear. This
parameter can be any combination of the
following values:
DMA_FLAG_TCIFx: Transfer
complete flag
DMA_FLAG_HTIFx: Half transfer
complete flag
DMA_FLAG_TEIFx: Transfer error
flag
DMA_ISR_GIFx: Global interrupt flag
Where x can be 0_4, 1_5, 2_6 or 3_7
to select the DMA Channel flag.
Return value:
None
__HAL_DMA_ENABLE_IT
Description:
Enables the specified DMA Channel
interrupts.
Parameters:
__HANDLE__: DMA handle
__INTERRUPT__: specifies the DMA
interrupt sources to be enabled or
disabled. This parameter can be any
combination of the following values:
DMA_IT_TC: Transfer complete
interrupt mask
DMA_IT_HT: Half transfer complete
interrupt mask
DMA_IT_TE: Transfer error interrupt
mask
Return value:
None
__HAL_DMA_DISABLE_IT
Description:
Disables the specified DMA Channel
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interrupts.
Parameters:
__HANDLE__: DMA handle
__INTERRUPT__: specifies the DMA
interrupt sources to be enabled or
disabled. This parameter can be any
combination of the following values:
DMA_IT_TC: Transfer complete
interrupt mask
DMA_IT_HT: Half transfer complete
interrupt mask
DMA_IT_TE: Transfer error interrupt
mask
Return value:
None
__HAL_DMA_GET_IT_SOURCE
Description:
Checks whether the specified DMA
Channel interrupt is enabled or not.
Parameters:
__HANDLE__: DMA handle
__INTERRUPT__: specifies the DMA
interrupt source to check. This parameter
can be one of the following values:
DMA_IT_TC: Transfer complete
interrupt mask
DMA_IT_HT: Half transfer complete
interrupt mask
DMA_IT_TE: Transfer error interrupt
mask
Return value:
The: state of DMA_IT (SET or RESET).
__HAL_DMA_GET_COUNTER
Description:
Returns the number of remaining data
units in the current DMAy Channelx
transfer.
Parameters:
__HANDLE__: DMA handle
Return value:
The: number of remaining data units in the
current DMA Channel transfer.
DMA Flag Definitions
DMA_FLAG_GL1
DMA_FLAG_TC1
DMA_FLAG_HT1
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DMA_FLAG_TE1
DMA_FLAG_GL2
DMA_FLAG_TC2
DMA_FLAG_HT2
DMA_FLAG_TE2
DMA_FLAG_GL3
DMA_FLAG_TC3
DMA_FLAG_HT3
DMA_FLAG_TE3
DMA_FLAG_GL4
DMA_FLAG_TC4
DMA_FLAG_HT4
DMA_FLAG_TE4
DMA_FLAG_GL5
DMA_FLAG_TC5
DMA_FLAG_HT5
DMA_FLAG_TE5
DMA_FLAG_GL6
DMA_FLAG_TC6
DMA_FLAG_HT6
DMA_FLAG_TE6
DMA_FLAG_GL7
DMA_FLAG_TC7
DMA_FLAG_HT7
DMA_FLAG_TE7
DMA handle index
TIM_DMA_ID_UPDATE
Index of the DMA handle used for Update DMA requests
TIM_DMA_ID_CC1
Index of the DMA handle used for Capture/Compare 1 DMA
requests
TIM_DMA_ID_CC2
Index of the DMA handle used for Capture/Compare 2 DMA
requests
TIM_DMA_ID_CC3
Index of the DMA handle used for Capture/Compare 3 DMA
requests
TIM_DMA_ID_CC4
Index of the DMA handle used for Capture/Compare 4 DMA
requests
TIM_DMA_ID_TRIGGER
Index of the DMA handle used for Trigger DMA requests
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DMA Interrupt Definitions
DMA_IT_TC
DMA_IT_HT
DMA_IT_TE
DMA Memory Data Size Alignment
DMA_MDATAALIGN_BYTE
Memory data alignment : Byte
DMA_MDATAALIGN_HALFWORD
Memory data alignment : HalfWord
DMA_MDATAALIGN_WORD
Memory data alignment : Word
IS_DMA_MEMORY_DATA_SIZE
DMA Memory Incremented Mode
DMA_MINC_ENABLE
Memory increment mode Enable
DMA_MINC_DISABLE
Memory increment mode Disable
IS_DMA_MEMORY_INC_STATE
DMA Mode
DMA_NORMAL
Normal Mode
DMA_CIRCULAR
Circular Mode
IS_DMA_MODE
DMA Peripheral Data Size Alignment
DMA_PDATAALIGN_BYTE
Peripheral data alignment : Byte
DMA_PDATAALIGN_HALFWORD
Peripheral data alignment : HalfWord
DMA_PDATAALIGN_WORD
Peripheral data alignment : Word
IS_DMA_PERIPHERAL_DATA_SIZE
DMA Peripheral Incremented Mode
DMA_PINC_ENABLE
Peripheral increment mode Enable
DMA_PINC_DISABLE
Peripheral increment mode Disable
IS_DMA_PERIPHERAL_INC_STATE
DMA Priority Level
DMA_PRIORITY_LOW
Priority level : Low
DMA_PRIORITY_MEDIUM
Priority level : Medium
DMA_PRIORITY_HIGH
Priority level : High
DMA_PRIORITY_VERY_HIGH
Priority level : Very_High
IS_DMA_PRIORITY
DMA request defintiions
DMA_REQUEST_0
DMA_REQUEST_1
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DMA_REQUEST_2
DMA_REQUEST_3
DMA_REQUEST_4
DMA_REQUEST_5
DMA_REQUEST_6
DMA_REQUEST_7
DMA_REQUEST_8
DMA_REQUEST_9
DMA_REQUEST_10
DMA_REQUEST_11
DMA_REQUEST_12
DMA_REQUEST_13
DMA_REQUEST_14
DMA_REQUEST_15
IS_DMA_ALL_REQUEST
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18 HAL FIREWALL Generic Driver
18.1 FIREWALL Firmware driver registers structures
18.1.1 FIREWALL_InitTypeDef
Data Fields
uint32_t CodeSegmentStartAddress
uint32_t CodeSegmentLength
uint32_t NonVDataSegmentStartAddress
uint32_t NonVDataSegmentLength
uint32_t VDataSegmentStartAddress
uint32_t VDataSegmentLength
uint32_t VolatileDataExecution
uint32_t VolatileDataShared
Field Documentation
uint32_t FIREWALL_InitTypeDef::CodeSegmentStartAddress
Protected code segment start address. This value is 24-bit long, the 8 LSB bits are
reserved and forced to 0 in order to allow a 256-byte granularity.
uint32_t FIREWALL_InitTypeDef::CodeSegmentLength
Protected code segment length in bytes. This value is 22-bit long, the 8 LSB bits are
reserved and forced to 0 for the length to be a multiple of 256 bytes.
uint32_t FIREWALL_InitTypeDef::NonVDataSegmentStartAddress
Protected non-volatile data segment start address. This value is 24-bit long, the 8 LSB
bits are reserved and forced to 0 in order to allow a 256-byte granularity.
uint32_t FIREWALL_InitTypeDef::NonVDataSegmentLength
Protected non-volatile data segment length in bytes. This value is 22-bit long, the 8
LSB bits are reserved and forced to 0 for the length to be a multiple of 256 bytes.
uint32_t FIREWALL_InitTypeDef::VDataSegmentStartAddress
Protected volatile data segment start address. This value is 17-bit long, the 6 LSB bits
are reserved and forced to 0 in order to allow a 64-byte granularity.
uint32_t FIREWALL_InitTypeDef::VDataSegmentLength
Protected volatile data segment length in bytes. This value is 17-bit long, the 6 LSB
bits are reserved and forced to 0 for the length to be a multiple of 64 bytes.
uint32_t FIREWALL_InitTypeDef::VolatileDataExecution
Set VDE bit specifying whether or not the volatile data segment can be executed.
When VDS = 1 (set by parameter VolatileDataShared), VDE bit has no meaning. This
parameter can be a value of FIREWALL_VolatileData_Executable
uint32_t FIREWALL_InitTypeDef::VolatileDataShared
Set VDS bit in specifying whether or not the volatile data segment can be shared with
a non-protected application code. This parameter can be a value of
FIREWALL_VolatileData_Shared
18.2 FIREWALL Firmware driver API description
18.2.1 How to use this driver
The FIREWALL HAL driver can be used as follows:
1. Declare a FIREWALL_InitTypeDef initialization structure.
2. Resort to HAL_FIREWALL_Config() API to initialize the Firewall
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3. Enable the FIREWALL in calling HAL_FIREWALL_EnableFirewall() API
4. To ensure that any code executed outside the protected segment closes the
FIREWALL, the user must set the flag FIREWALL_PRE_ARM_SET in calling
__HAL_FIREWALL_PREARM_ENABLE() macro if called within a protected code
segment or HAL_FIREWALL_EnablePreArmFlag() API if called outside of protected
code segment after HAL_FIREWALL_Config() call.
18.2.2 Initialization and Configuration functions
This subsection provides the functions allowing to initialize the Firewall. Initialization is
done by HAL_FIREWALL_Config():
Enable the Firewall clock thru __HAL_RCC_FIREWALL_CLK_ENABLE() macro.
Set the protected code segment address start and length.
Set the protected non-volatile and/or volatile data segments address starts and
lengths if applicable.
Set the volatile data segment execution and sharing status.
Length must be set to 0 for an unprotected segment.
This section contains the following APIs:
HAL_FIREWALL_Config()
HAL_FIREWALL_GetConfig()
HAL_FIREWALL_EnableFirewall()
HAL_FIREWALL_EnablePreArmFlag()
HAL_FIREWALL_DisablePreArmFlag()
18.2.3 Detailed description of functions
HAL_FIREWALL_Config
Function name
HAL_StatusTypeDef HAL_FIREWALL_Config
(FIREWALL_InitTypeDef * fw_init)
Function description
Initialize the Firewall according to the FIREWALL_InitTypeDef
structure parameters.
Parameters
fw_init: Firewall initialization structure
Return values
HAL: status
Notes
The API returns HAL_ERROR if the Firewall is already
enabled.
HAL_FIREWALL_GetConfig
Function name
void HAL_FIREWALL_GetConfig (FIREWALL_InitTypeDef *
fw_config)
Function description
Retrieve the Firewall configuration.
Parameters
fw_config: Firewall configuration, type is same as
initialization structure
Return values
None
Notes
This API can't be executed inside a code area protected by
the Firewall when the Firewall is enabled
If NVDSL register is different from 0, that is, if the non volatile
data segment is defined, this API can't be executed when the
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Firewall is enabled.
User should resort to __HAL_FIREWALL_GET_PREARM()
macro to retrieve FPA bit status
HAL_FIREWALL_EnableFirewall
Function name
void HAL_FIREWALL_EnableFirewall (void )
Function description
Enable FIREWALL.
Return values
None
Notes
Firewall is enabled in clearing FWDIS bit of SYSCFG CFGR1
register. Once enabled, the Firewall cannot be disabled by
software. Only a system reset can set again FWDIS bit.
HAL_FIREWALL_EnablePreArmFlag
Function name
void HAL_FIREWALL_EnablePreArmFlag (void )
Function description
Enable FIREWALL pre arm.
Return values
None
Notes
When FPA bit is set, any code executed outside the protected
segment will close the Firewall.
This API provides the same service as
__HAL_FIREWALL_PREARM_ENABLE() macro but can't be
executed inside a code area protected by the Firewall.
When the Firewall is disabled, user can resort to
HAL_FIREWALL_EnablePreArmFlag() API any time.
When the Firewall is enabled and NVDSL register is equal to
0 (that is, when the non volatile data segment is not defined),
** this API can be executed when the Firewall is closed **
when the Firewall is opened, user should resort to
__HAL_FIREWALL_PREARM_ENABLE() macro instead
When the Firewall is enabled and NVDSL register is different
from 0 (that is, when the non volatile data segment is defined)
** FW_CR register can be accessed only when the Firewall is
opened: user should resort to
__HAL_FIREWALL_PREARM_ENABLE() macro instead.
HAL_FIREWALL_DisablePreArmFlag
Function name
void HAL_FIREWALL_DisablePreArmFlag (void )
Function description
Disable FIREWALL pre arm.
Return values
None
Notes
When FPA bit is reset, any code executed outside the
protected segment when the Firewall is opened will generate
a system reset.
This API provides the same service as
__HAL_FIREWALL_PREARM_DISABLE() macro but can't be
executed inside a code area protected by the Firewall.
When the Firewall is disabled, user can resort to
HAL_FIREWALL_EnablePreArmFlag() API any time.
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When the Firewall is enabled and NVDSL register is equal to
0 (that is, when the non volatile data segment is not defined),
** this API can be executed when the Firewall is closed **
when the Firewall is opened, user should resort to
__HAL_FIREWALL_PREARM_DISABLE() macro instead
When the Firewall is enabled and NVDSL register is different
from 0 (that is, when the non volatile data segment is defined)
** FW_CR register can be accessed only when the Firewall is
opened: user should resort to
__HAL_FIREWALL_PREARM_DISABLE() macro instead.
18.3 FIREWALL Firmware driver defines
18.3.1 FIREWALL
FIREWALL Exported Macros
__HAL_FIREWALL_IS_ENABLED
Description:
Check whether the
FIREWALL is enabled or not.
Return value:
FIREWALL: enabling status
(TRUE or FALSE).
__HAL_FIREWALL_PREARM_ENABLE
Notes:
When FPA bit is set, any
code executed outside the
protected segment closes
the Firewall, otherwise it
generates a system reset.
This macro provides the
same service as
HAL_FIREWALL_EnablePre
ArmFlag() API but can be
executed inside a code area
protected by the Firewall.
This macro can be executed
whatever the Firewall state
(opened or closed) when
NVDSL register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_PREARM_DISABLE
Notes:
When FPA bit is set, any
code executed outside the
protected segment closes
the Firewall, otherwise, it
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generates a system reset.
This macro provides the
same service as
HAL_FIREWALL_DisablePre
ArmFlag() API but can be
executed inside a code area
protected by the Firewall.
This macro can be executed
whatever the Firewall state
(opened or closed) when
NVDSL register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_VOLATILEDATA_SHARED_
ENABLE
Notes:
When VDS bit is set, the
volatile data segment is
shared with non-protected
application code. It can be
accessed whatever the
Firewall state (opened or
closed). This macro can be
executed inside a code area
protected by the Firewall.
This macro can be executed
whatever the Firewall state
(opened or closed) when
NVDSL register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_VOLATILEDATA_SHARED_
DISABLE
Notes:
When VDS bit is reset, the
volatile data segment is not
shared and cannot be hit by
a non protected executable
code when the Firewall is
closed. If it is accessed in
such a condition, a system
reset is generated by the
Firewall. This macro can be
executed inside a code area
protected by the Firewall.
This macro can be executed
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whatever the Firewall state
(opened or closed) when
NVDSL register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_VOLATILEDATA_EXECUTION_
ENABLE
Notes:
VDE bit is ignored when
VDS is set. IF VDS = 1, the
Volatile data segment can be
executed whatever the VDE
bit value. When VDE bit is
set (with VDS = 0), the
volatile data segment is
executable. When the
Firewall call is closed, a "call
gate" entry procedure is
required to open first the
Firewall. This macro can be
executed inside a code area
protected by the Firewall.
This macro can be executed
whatever the Firewall state
(opened or closed) when
NVDSL register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_VOLATILEDATA_EXECUTION_
DISABLE
Notes:
VDE bit is ignored when
VDS is set. IF VDS = 1, the
Volatile data segment can be
executed whatever the VDE
bit value. When VDE bit is
reset (with VDS = 0), the
volatile data segment cannot
be executed. This macro can
be executed inside a code
area protected by the
Firewall. This macro can be
executed whatever the
Firewall state (opened or
closed) when NVDSL
register is equal to 0.
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Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_GET_VOLATILEDATA_SHARED
Description:
Check whether or not the
volatile data segment is
shared.
Return value:
VDS: bit setting status
(TRUE or FALSE).
Notes:
This macro can be executed
inside a code area protected
by the Firewall. This macro
can be executed whatever
the Firewall state (opened or
closed) when NVDSL
register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
__HAL_FIREWALL_GET_VOLATILEDATA_
EXECUTION
Description:
Check whether or not the
volatile data segment is
declared executable.
Return value:
VDE: bit setting status
(TRUE or FALSE).
Notes:
This macro can be executed
inside a code area protected
by the Firewall. This macro
can be executed whatever
the Firewall state (opened or
closed) when NVDSL
register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
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when the Firewall is opened.
__HAL_FIREWALL_GET_PREARM
Description:
Check whether or not the
Firewall pre arm bit is set.
Return value:
FPA: bit setting status
(TRUE or FALSE).
Notes:
This macro can be executed
inside a code area protected
by the Firewall. This macro
can be executed whatever
the Firewall state (opened or
closed) when NVDSL
register is equal to 0.
Otherwise (when NVDSL
register is different from 0,
that is, when the non volatile
data segment is defined), the
macro can be executed only
when the Firewall is opened.
FIREWALL pre arm status
FIREWALL_PRE_ARM_RESET
FIREWALL_PRE_ARM_SET
FIREWALL volatile data segment execution status
FIREWALL_VOLATILEDATA_NOT_EXECUTABLE
FIREWALL_VOLATILEDATA_EXECUTABLE
FIREWALL volatile data segment share status
FIREWALL_VOLATILEDATA_NOT_SHARED
FIREWALL_VOLATILEDATA_SHARED
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19 HAL FLASH Generic Driver
19.1 FLASH Firmware driver registers structures
19.1.1 FLASH_ProcessTypeDef
Data Fields
__IO FLASH_ProcedureTypeDef ProcedureOnGoing
__IO uint32_t NbPagesToErase
__IO uint32_t Address
__IO uint32_t Page
HAL_LockTypeDef Lock
__IO uint32_t ErrorCode
Field Documentation
__IO FLASH_ProcedureTypeDef FLASH_ProcessTypeDef::ProcedureOnGoing
Internal variable to indicate which procedure is ongoing or not in IT context
__IO uint32_t FLASH_ProcessTypeDef::NbPagesToErase
Internal variable to save the remaining sectors to erase in IT context
__IO uint32_t FLASH_ProcessTypeDef::Address
Internal variable to save address selected for program or erase
__IO uint32_t FLASH_ProcessTypeDef::Page
Internal variable to define the current page which is erasing
HAL_LockTypeDef FLASH_ProcessTypeDef::Lock
FLASH locking object
__IO uint32_t FLASH_ProcessTypeDef::ErrorCode
FLASH error code This parameter can be a value of FLASH_Error_Codes
19.2 FLASH Firmware driver API description
19.2.1 FLASH peripheral features
The Flash memory interface manages CPU AHB I-Code and D-Code accesses to the
Flash memory. It implements the erase and program Flash memory operations and the
read and write protection mechanisms.
The Flash memory interface accelerates code execution with a system of instruction
prefetch.
The FLASH main features are:
Flash memory read operations
Flash memory program/erase operations
Read / write protections
Prefetch on I-Code
Option Bytes programming
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19.2.2 How to use this driver
This driver provides functions and macros to configure and program the FLASH memory of
all STM32L0xx devices.
1. FLASH Memory I/O Programming functions: this group includes all needed functions
to erase and program the main memory:
Lock and Unlock the FLASH interface
Erase function: Erase page
Program functions: Fast Word and Half Page(should be executed from internal
SRAM).
2. DATA EEPROM Programming functions: this group includes all needed functions to
erase and program the DATA EEPROM memory:
Lock and Unlock the DATA EEPROM interface.
Erase function: Erase Byte, erase HalfWord, erase Word, erase Double Word
(should be executed from internal SRAM).
Program functions: Fast Program Byte, Fast Program Half-Word,
FastProgramWord, Program Byte, Program Half-Word, Program Word and
Program Double-Word (should be executed from internal SRAM).
3. FLASH Option Bytes Programming functions: this group includes all needed functions
to manage the Option Bytes:
Lock and Unlock the Option Bytes
Set/Reset the write protection
Set the Read protection Level
Program the user Option Bytes
Launch the Option Bytes loader
Set/Get the Read protection Level.
Set/Get the BOR level.
Get the Write protection.
Get the user option bytes.
4. Interrupts and flags management functions : this group includes all needed functions
to:
Handle FLASH interrupts
Wait for last FLASH operation according to its status
Get error flag status
5. FLASH Interface configuration functions: this group includes the management of
following features:
Enable/Disable the RUN PowerDown mode.
Enable/Disable the SLEEP PowerDown mode.
6. FLASH Peripheral State methods: this group includes the management of following
features:
Wait for the FLASH operation
Get the specific FLASH error flag
In addition to these function, this driver includes a set of macros allowing to handle the
following operations:
Set/Get the latency
Enable/Disable the prefetch buffer
Enable/Disable the preread buffer
Enable/Disable the Flash power-down
Enable/Disable the FLASH interrupts
Monitor the FLASH flags status
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19.2.3 Programming operation functions
This subsection provides a set of functions allowing to manage the FLASH program
operations.
The FLASH Memory Programming functions, includes the following functions:
HAL_FLASH_Unlock(void);
HAL_FLASH_Lock(void);
HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
Any operation of erase or program should follow these steps:
1. Call the HAL_FLASH_Unlock() function to enable the flash control register and
program memory access.
2. Call the desired function to erase page or program data.
3. Call the HAL_FLASH_Lock() to disable the flash program memory access
(recommended to protect the FLASH memory against possible unwanted operation).
19.2.4 Option Bytes Programming functions
The FLASH_Option Bytes Programming_functions, includes the following functions:
HAL_FLASH_OB_Unlock(void);
HAL_FLASH_OB_Lock(void);
HAL_FLASH_OB_Launch(void);
HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit);
HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit);
Any operation of erase or program should follow these steps:
1. Call the HAL_FLASH_OB_Unlock() function to enable the Flash option control register
access.
2. Call the following functions to program the desired option bytes.
HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit);
3. Once all needed option bytes to be programmed are correctly written, call the
HAL_FLASH_OB_Launch(void) function to launch the Option Bytes programming
process.
4. Call the HAL_FLASH_OB_Lock() to disable the Flash option control register access
(recommended to protect the option Bytes against possible unwanted operations).
Proprietary code Read Out Protection (PcROP):
1. The PcROP sector is selected by using the same option bytes as the Write protection.
As a result, these 2 options are exclusive each other.
2. To activate PCROP mode for Flash sectors(s), you need to follow the sequence
below:
Use this function HAL_FLASHEx_AdvOBProgram with PCROPState =
OB_PCROP_STATE_ENABLE.
19.2.5 Peripheral Control functions
This subsection provides a set of functions allowing to control the FLASH memory
operations.
This section contains the following APIs:
HAL_FLASH_Unlock()
HAL_FLASH_Lock()
HAL_FLASH_OB_Unlock()
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HAL_FLASH_OB_Lock()
HAL_FLASH_OB_Launch()
19.2.6 Peripheral Errors functions
This subsection permit to get in run-time errors of the FLASH peripheral.
This section contains the following APIs:
HAL_FLASH_GetError()
19.2.7 Detailed description of functions
HAL_FLASH_Program
Function name
HAL_StatusTypeDef HAL_FLASH_Program (uint32_t
TypeProgram, uint32_t Address, uint32_t Data)
Function description
Program word at a specified address.
Parameters
TypeProgram: Indicate the way to program at a specified
address. This parameter can be a value of FLASH Type
Program
Address: Specifie the address to be programmed.
Data: Specifie the data to be programmed
Return values
HAL_StatusTypeDef: HAL Status
Notes
To correctly run this function, the HAL_FLASH_Unlock()
function must be called before. Call the HAL_FLASH_Lock()
to disable the flash memory access (recommended to protect
the FLASH memory against possible unwanted operation).
HAL_FLASH_Program_IT
Function name
HAL_StatusTypeDef HAL_FLASH_Program_IT (uint32_t
TypeProgram, uint32_t Address, uint32_t Data)
Function description
Program word at a specified address with interrupt enabled.
Parameters
TypeProgram: Indicate the way to program at a specified
address. This parameter can be a value of FLASH Type
Program
Address: Specifie the address to be programmed.
Data: Specifie the data to be programmed
Return values
HAL_StatusTypeDef: HAL Status
HAL_FLASH_IRQHandler
Function name
void HAL_FLASH_IRQHandler (void )
Function description
This function handles FLASH interrupt request.
Return values
None
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HAL_FLASH_EndOfOperationCallback
Function name
void HAL_FLASH_EndOfOperationCallback (uint32_t
ReturnValue)
Function description
FLASH end of operation interrupt callback.
Parameters
ReturnValue: The value saved in this parameter depends on
the ongoing procedure
Pages Erase: Address of the page which has been
erased (if 0xFFFFFFFF, it means that all the selected
pages have been erased)
Program: Address which was selected for data program
Return values
None
HAL_FLASH_OperationErrorCallback
Function name
void HAL_FLASH_OperationErrorCallback (uint32_t
ReturnValue)
Function description
FLASH operation error interrupt callback.
Parameters
ReturnValue: The value saved in this parameter depends on
the ongoing procedure
Pages Erase: Address of the page which returned an
error
Program: Address which was selected for data program
Return values
None
HAL_FLASH_Unlock
Function name
HAL_StatusTypeDef HAL_FLASH_Unlock (void )
Function description
Unlock the FLASH control register access.
Return values
HAL: Status
HAL_FLASH_Lock
Function name
HAL_StatusTypeDef HAL_FLASH_Lock (void )
Function description
Locks the FLASH control register access.
Return values
HAL: Status
HAL_FLASH_OB_Unlock
Function name
HAL_StatusTypeDef HAL_FLASH_OB_Unlock (void )
Function description
Unlock the FLASH Option Control Registers access.
Return values
HAL: Status
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HAL_FLASH_OB_Lock
Function name
HAL_StatusTypeDef HAL_FLASH_OB_Lock (void )
Function description
Lock the FLASH Option Control Registers access.
Return values
HAL: Status
HAL_FLASH_OB_Launch
Function name
HAL_StatusTypeDef HAL_FLASH_OB_Launch (void )
Function description
Launch the option byte loading.
Return values
HAL: Status
Notes
This function will reset automatically the MCU.
HAL_FLASH_GetError
Function name
uint32_t HAL_FLASH_GetError (void )
Function description
Get the specific FLASH error flag.
Return values
FLASH_ErrorCode: The returned value can be: FLASH
Error Codes
FLASH_WaitForLastOperation
Function name
HAL_StatusTypeDef FLASH_WaitForLastOperation (uint32_t
Timeout)
Function description
Wait for a FLASH operation to complete.
Parameters
Timeout: maximum flash operation timeout
Return values
HAL: Status
19.3 FLASH Firmware driver defines
19.3.1 FLASH
FLASH Error Codes
HAL_FLASH_ERROR_NONE
No error
HAL_FLASH_ERROR_PGA
Programming alignment error
HAL_FLASH_ERROR_WRP
Write protection error
HAL_FLASH_ERROR_OPTV
Option validity error
HAL_FLASH_ERROR_SIZE
HAL_FLASH_ERROR_RD
Read protected error
HAL_FLASH_ERROR_FWWERR
FLASH Write or Erase operation aborted
HAL_FLASH_ERROR_NOTZERO
FLASH Write operation is done in a not-erased region
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FLASH Flags
FLASH_FLAG_BSY
FLASH Busy flag
FLASH_FLAG_EOP
FLASH End of Programming flag
FLASH_FLAG_ENDHV
FLASH End of High Voltage flag
FLASH_FLAG_READY
FLASH Ready flag after low power mode
FLASH_FLAG_WRPERR
FLASH Write protected error flag
FLASH_FLAG_PGAERR
FLASH Programming Alignment error flag
FLASH_FLAG_SIZERR
FLASH Size error flag
FLASH_FLAG_OPTVERR
FLASH Option Validity error flag
FLASH_FLAG_RDERR
FLASH Read protected error flag
FLASH_FLAG_FWWERR
FLASH Write or Errase operation aborted
FLASH_FLAG_NOTZEROERR
FLASH Read protected error flag
FLASH Interrupts
__HAL_FLASH_ENABLE_IT
Description:
Enable the specified FLASH interrupt.
Parameters:
__INTERRUPT__: FLASH interrupt This parameter
can be any combination of the following values:
FLASH_IT_EOP End of FLASH Operation
Interrupt
FLASH_IT_ERR Error Interrupt
Return value:
none
__HAL_FLASH_DISABLE_IT
Description:
Disable the specified FLASH interrupt.
Parameters:
__INTERRUPT__: FLASH interrupt This parameter
can be any combination of the following values:
FLASH_IT_EOP End of FLASH Operation
Interrupt
FLASH_IT_ERR Error Interrupt
Return value:
none
__HAL_FLASH_GET_FLAG
Description:
Get the specified FLASH flag status.
Parameters:
__FLAG__: specifies the FLASH flag to check. This
parameter can be one of the following values:
FLASH_FLAG_BSY FLASH Busy flag
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FLASH_FLAG_EOP FLASH End of Operation
flag
FLASH_FLAG_ENDHV FLASH End of High
Voltage flag
FLASH_FLAG_READY FLASH Ready flag
after low power mode
FLASH_FLAG_PGAERR FLASH Programming
Alignment error flag
FLASH_FLAG_SIZERR FLASH Size error flag
FLASH_FLAG_OPTVERR FLASH Option
validity error flag (not valid with
STM32L031xx/STM32L041xx)
FLASH_FLAG_RDERR FLASH Read protected
error flag
FLASH_FLAG_WRPERR FLASH Write
protected error flag
FLASH_FLAG_FWWERR FLASH Fetch While
Write Error flag
FLASH_FLAG_NOTZEROERR Not Zero area
error flag
Return value:
The: new state of __FLAG__ (SET or RESET).
__HAL_FLASH_CLEAR_FLAG
Description:
Clear the specified FLASH flag.
Parameters:
__FLAG__: specifies the FLASH flags to clear. This
parameter can be any combination of the following
values:
FLASH_FLAG_EOP FLASH End of Operation
flag
FLASH_FLAG_PGAERR FLASH Programming
Alignment error flag
FLASH_FLAG_SIZERR FLASH Size error flag
FLASH_FLAG_OPTVERR FLASH Option
validity error flag (not valid with
STM32L031xx/STM32L041xx)
FLASH_FLAG_RDERR FLASH Read protected
error flag
FLASH_FLAG_WRPERR FLASH Write
protected error flag
FLASH_FLAG_FWWERR FLASH Fetch While
Write Error flag
FLASH_FLAG_NOTZEROERR Not Zero area
error flag
Return value:
none
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FLASH Interrupts
FLASH_IT_EOP
End of programming interrupt source
FLASH_IT_ERR
Error interrupt source
FLASH Keys
FLASH_PDKEY1
Flash power down key1
FLASH_PDKEY2
Flash power down key2: used with FLASH_PDKEY1 to unlock the
RUN_PD bit in FLASH_ACR
FLASH_PEKEY1
Flash program erase key1
FLASH_PEKEY2
Flash program erase key: used with FLASH_PEKEY2 to unlock
the write access to the FLASH_PECR register and data EEPROM
FLASH_PRGKEY1
Flash program memory key1
FLASH_PRGKEY2
Flash program memory key2: used with FLASH_PRGKEY2 to
unlock the program memory
FLASH_OPTKEY1
Flash option key1
FLASH_OPTKEY2
Flash option key2: used with FLASH_OPTKEY1 to unlock the
write access to the option byte block
FLASH Latency
FLASH_LATENCY_0
FLASH Zero Latency cycle
FLASH_LATENCY_1
FLASH One Latency cycle
FLASH size information
FLASH_SIZE
FLASH_PAGE_SIZE
FLASH Page Size in bytes
FLASH Type Program
FLASH_TYPEPROGRAM_WORD
Program a word (32-bit) at a specified address.
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20 HAL FLASH Extension Driver
20.1 FLASHEx Firmware driver registers structures
20.1.1 FLASH_EraseInitTypeDef
Data Fields
uint32_t TypeErase
uint32_t PageAddress
uint32_t NbPages
Field Documentation
uint32_t FLASH_EraseInitTypeDef::TypeErase
TypeErase: Page Erase only. This parameter can be a value of
FLASHEx_Type_Erase
uint32_t FLASH_EraseInitTypeDef::PageAddress
PageAddress: Initial FLASH address to be erased This parameter must be a value
belonging to FLASH Programm address (depending on the devices)
uint32_t FLASH_EraseInitTypeDef::NbPages
NbPages: Number of pages to be erased. This parameter must be a value between 1
and (max number of pages - value of Initial page)
20.1.2 FLASH_OBProgramInitTypeDef
Data Fields
uint32_t OptionType
uint32_t WRPState
uint32_t WRPSector
uint32_t WRPSector2
uint8_t RDPLevel
uint8_t BORLevel
uint8_t USERConfig
uint8_t BOOTBit1Config
Field Documentation
uint32_t FLASH_OBProgramInitTypeDef::OptionType
OptionType: Option byte to be configured. This parameter can be a value of
FLASHEx_Option_Type
uint32_t FLASH_OBProgramInitTypeDef::WRPState
WRPState: Write protection activation or deactivation. This parameter can be a value
of FLASHEx_WRP_State
uint32_t FLASH_OBProgramInitTypeDef::WRPSector
WRPSector: This bitfield specifies the sector (s) which are write protected. This
parameter can be a combination of FLASHEx_Option_Bytes_Write_Protection
uint32_t FLASH_OBProgramInitTypeDef::WRPSector2
WRPSector2 : This bitfield specifies the sector(s) upper Sector31 which are write
protected. This parameter can be a combination of
FLASHEx_Option_Bytes_Write_Protection2
uint8_t FLASH_OBProgramInitTypeDef::RDPLevel
RDPLevel: Set the read protection level. This parameter can be a value of
FLASHEx_Option_Bytes_Read_Protection
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uint8_t FLASH_OBProgramInitTypeDef::BORLevel
BORLevel: Set the BOR Level. This parameter can be a value of
FLASHEx_Option_Bytes_BOR_Level
uint8_t FLASH_OBProgramInitTypeDef::USERConfig
USERConfig: Program the FLASH User Option Byte: IWDG_SW / RST_STOP /
RST_STDBY. This parameter can be a combination of
FLASHEx_Option_Bytes_IWatchdog, FLASHEx_Option_Bytes_nRST_STOP and
FLASHEx_Option_Bytes_nRST_STDBY
uint8_t FLASH_OBProgramInitTypeDef::BOOTBit1Config
BOOT1Config: Together with input pad Boot0, this bit selects the boot source, flash,
ram or system memory This parameter can be a value of
FLASHEx_Option_Bytes_BOOTBit1
20.1.3 FLASH_AdvOBProgramInitTypeDef
Data Fields
uint32_t OptionType
uint32_t PCROPState
uint32_t PCROPSector
uint32_t PCROPSector2
uint16_t BootConfig
Field Documentation
uint32_t FLASH_AdvOBProgramInitTypeDef::OptionType
OptionType: Option byte to be configured for extension . This parameter can be a
value of FLASHEx_OptionAdv_Type
uint32_t FLASH_AdvOBProgramInitTypeDef::PCROPState
PCROPState: PCROP activation or deactivation. This parameter can be a value of
FLASHEx_PCROP_State
uint32_t FLASH_AdvOBProgramInitTypeDef::PCROPSector
PCROPSector : This bitfield specifies the sector(s) which are read/write protected.
This parameter can be a combination of
FLASHEx_Option_Bytes_PC_ReadWrite_Protection
uint32_t FLASH_AdvOBProgramInitTypeDef::PCROPSector2
PCROPSector : This bitfield specifies the sector(s) upper Sector31 which are
read/write protected. This parameter can be a combination of
FLASHEx_Option_Bytes_PC_ReadWrite_Protection2
uint16_t FLASH_AdvOBProgramInitTypeDef::BootConfig
BootConfig: specifies Option bytes for boot config This parameter can be a value of
FLASHEx_Option_Bytes_BOOT
20.2 FLASHEx Firmware driver API description
20.2.1 FLASH Erasing Programming functions
The FLASH Memory Erasing functions, includes the following functions:
@ref HAL_FLASHEx_Erase: return only when erase has been done
@ref HAL_FLASHEx_Erase_IT: end of erase is done when @ref
HAL_FLASH_EndOfOperationCallback is called with parameter 0xFFFFFFFF
Any operation of erase should follow these steps:
1. Call the @ref HAL_FLASH_Unlock() function to enable the flash control register and
program memory access.
2. Call the desired function to erase page.
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3. Call the @ref HAL_FLASH_Lock() to disable the flash program memory access
(recommended to protect the FLASH memory against possible unwanted operation).
This section contains the following APIs:
HAL_FLASHEx_Erase()
HAL_FLASHEx_Erase_IT()
20.2.2 Option Bytes Programming functions
Any operation of erase or program should follow these steps:
1. Call the @ref HAL_FLASH_OB_Unlock() function to enable the Flash option control
register access.
2. Call following function to program the desired option bytes.
@ref HAL_FLASHEx_OBProgram: - To Enable/Disable the desired sector write
protection. - To set the desired read Protection Level. - To configure the user
option Bytes: IWDG, STOP and the Standby. - To Set the BOR level.
3. Once all needed option bytes to be programmed are correctly written, call the @ref
HAL_FLASH_OB_Launch(void) function to launch the Option Bytes programming
process.
4. Call the @ref HAL_FLASH_OB_Lock() to disable the Flash option control register
access (recommended to protect the option Bytes against possible unwanted
operations).
Proprietary code Read Out Protection (PcROP):
1. The PcROP sector is selected by using the same option bytes as the Write protection
(nWRPi bits). As a result, these 2 options are exclusive each other.
2. In order to activate the PcROP (change the function of the nWRPi option bits), the
WPRMOD option bit must be activated.
3. The active value of nWRPi bits is inverted when PCROP mode is active, this means: if
WPRMOD = 1 and nWRPi = 1 (default value), then the user sector "i" is read/write
protected.
4. To activate PCROP mode for Flash sector(s), you need to call the following function:
@ref HAL_FLASHEx_AdvOBProgram in selecting sectors to be read/write
protected
@ref HAL_FLASHEx_OB_SelectPCROP to enable the read/write protection
This section contains the following APIs:
HAL_FLASHEx_OBProgram()
HAL_FLASHEx_OBGetConfig()
HAL_FLASHEx_AdvOBProgram()
HAL_FLASHEx_AdvOBGetConfig()
HAL_FLASHEx_OB_SelectPCROP()
HAL_FLASHEx_OB_DeSelectPCROP()
20.2.3 DATA EEPROM Programming functions
Any operation of erase or program should follow these steps:
1. Call the @ref HAL_FLASHEx_DATAEEPROM_Unlock() function to enable the data
EEPROM access and Flash program erase control register access.
2. Call the desired function to erase or program data.
3. Call the @ref HAL_FLASHEx_DATAEEPROM_Lock() to disable the data EEPROM
access and Flash program erase control register access(recommended to protect the
DATA_EEPROM against possible unwanted operation).
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This section contains the following APIs:
HAL_FLASHEx_DATAEEPROM_Unlock()
HAL_FLASHEx_DATAEEPROM_Lock()
HAL_FLASHEx_DATAEEPROM_Erase()
HAL_FLASHEx_DATAEEPROM_Program()
HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram()
HAL_FLASHEx_DATAEEPROM_DisableFixedTimeProgram()
20.2.4 Detailed description of functions
HAL_FLASHEx_Erase
Function name
HAL_StatusTypeDef HAL_FLASHEx_Erase
(FLASH_EraseInitTypeDef * pEraseInit, uint32_t * PageError)
Function description
Erase the specified FLASH memory Pages.
Parameters
pEraseInit: pointer to an FLASH_EraseInitTypeDef structure
that contains the configuration information for the erasing.
PageError: pointer to variable that contains the configuration
information on faulty page in case of error (0xFFFFFFFF
means that all the pages have been correctly erased)
Return values
HAL_StatusTypeDef: HAL Status
Notes
To correctly run this function, the HAL_FLASH_Unlock()
function must be called before. Call the HAL_FLASH_Lock()
to disable the flash memory access (recommended to protect
the FLASH memory against possible unwanted operation)
HAL_FLASHEx_Erase_IT
Function name
HAL_StatusTypeDef HAL_FLASHEx_Erase_IT
(FLASH_EraseInitTypeDef * pEraseInit)
Function description
Perform a page erase of the specified FLASH memory pages with
interrupt enabled.
Parameters
pEraseInit: pointer to an FLASH_EraseInitTypeDef structure
that contains the configuration information for the erasing.
Return values
HAL_StatusTypeDef: HAL Status
Notes
To correctly run this function, the HAL_FLASH_Unlock()
function must be called before. Call the HAL_FLASH_Lock()
to disable the flash memory access (recommended to protect
the FLASH memory against possible unwanted operation)
End of erase is done when
HAL_FLASH_EndOfOperationCallback is called with
parameter 0xFFFFFFFF
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HAL_FLASHEx_OBProgram
Function name
HAL_StatusTypeDef HAL_FLASHEx_OBProgram
(FLASH_OBProgramInitTypeDef * pOBInit)
Function description
Program option bytes.
Parameters
pOBInit: pointer to an FLASH_OBInitStruct structure that
contains the configuration information for the programming.
Return values
HAL_StatusTypeDef: HAL Status
HAL_FLASHEx_OBGetConfig
Function name
void HAL_FLASHEx_OBGetConfig
(FLASH_OBProgramInitTypeDef * pOBInit)
Function description
Get the Option byte configuration.
Parameters
pOBInit: pointer to an FLASH_OBInitStruct structure that
contains the configuration information for the programming.
Return values
None
HAL_FLASHEx_AdvOBProgram
Function name
HAL_StatusTypeDef HAL_FLASHEx_AdvOBProgram
(FLASH_AdvOBProgramInitTypeDef * pAdvOBInit)
Function description
Program option bytes.
Parameters
pAdvOBInit: pointer to an
FLASH_AdvOBProgramInitTypeDef structure that contains
the configuration information for the programming.
Return values
HAL_StatusTypeDef: HAL Status
HAL_FLASHEx_AdvOBGetConfig
Function name
void HAL_FLASHEx_AdvOBGetConfig
(FLASH_AdvOBProgramInitTypeDef * pAdvOBInit)
Function description
Get the OBEX byte configuration.
Parameters
pAdvOBInit: pointer to an
FLASH_AdvOBProgramInitTypeDef structure that contains
the configuration information for the programming.
Return values
None
HAL_FLASHEx_OB_SelectPCROP
Function name
HAL_StatusTypeDef HAL_FLASHEx_OB_SelectPCROP (void )
Function description
Select the Protection Mode (WPRMOD).
Return values
HAL: status
Notes
Once WPRMOD bit is active, unprotection of a protected
sector is not possible
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Read a protected sector will set RDERR Flag and write a
protected sector will set WRPERR Flag
HAL_FLASHEx_OB_DeSelectPCROP
Function name
HAL_StatusTypeDef HAL_FLASHEx_OB_DeSelectPCROP
(void )
Function description
Deselect the Protection Mode (WPRMOD).
Return values
HAL: status
Notes
Once WPRMOD bit is active, unprotection of a protected
sector is not possible
Read a protected sector will set RDERR Flag and write a
protected sector will set WRPERR Flag
HAL_FLASHEx_DATAEEPROM_Unlock
Function name
HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Unlock
(void )
Function description
Unlocks the data memory and FLASH_PECR register access.
Return values
HAL_StatusTypeDef: HAL Status
HAL_FLASHEx_DATAEEPROM_Lock
Function name
HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Lock
(void )
Function description
Locks the Data memory and FLASH_PECR register access.
Return values
HAL_StatusTypeDef: HAL Status
HAL_FLASHEx_DATAEEPROM_Erase
Function name
HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Erase
(uint32_t Address)
Function description
Erase a word in data memory.
Parameters
Address: specifies the address to be erased.
Return values
HAL_StatusTypeDef: HAL Status
Notes
To correctly run this function, the
HAL_FLASHEx_DATAEEPROM_Unlock() function must be
called before. Call the
HAL_FLASHEx_DATAEEPROM_Lock() to the data EEPROM
access and Flash program erase control register
access(recommended to protect the DATA_EEPROM against
possible unwanted operation).
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HAL_FLASHEx_DATAEEPROM_Program
Function name
HAL_StatusTypeDef HAL_FLASHEx_DATAEEPROM_Program
(uint32_t TypeProgram, uint32_t Address, uint32_t Data)
Function description
Program word at a specified address.
Parameters
TypeProgram: Indicate the way to program at a specified
address. This parameter can be a value of FLASHEx Type
Program Data
Address: specifie the address to be programmed.
Data: specifie the data to be programmed
Return values
HAL_StatusTypeDef: HAL Status
Notes
To correctly run this function, the
HAL_FLASHEx_DATAEEPROM_Unlock() function must be
called before. Call the
HAL_FLASHEx_DATAEEPROM_Unlock() to he data
EEPROM access and Flash program erase control register
access(recommended to protect the DATA_EEPROM against
possible unwanted operation).
The function
HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram()
can be called before this function to configure the Fixed Time
Programming.
HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram
Function name
void
HAL_FLASHEx_DATAEEPROM_EnableFixedTimeProgram
(void )
Function description
Enable DATA EEPROM fixed Time programming (2*Tprog).
Return values
None
HAL_FLASHEx_DATAEEPROM_DisableFixedTimeProgram
Function name
void
HAL_FLASHEx_DATAEEPROM_DisableFixedTimeProgram
(void )
Function description
Disables DATA EEPROM fixed Time programming (2*Tprog).
Return values
None
20.3 FLASHEx Firmware driver defines
20.3.1 FLASHEx
FLASHEx Address
IS_FLASH_DATA_ADDRESS
IS_FLASH_DATA_BANK1_ADDRESS
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IS_FLASH_DATA_BANK2_ADDRESS
IS_FLASH_PROGRAM_ADDRESS
IS_FLASH_PROGRAM_BANK1_ADDRESS
IS_FLASH_PROGRAM_BANK2_ADDRESS
IS_NBPAGES
FLASHEx Exported Macros
__HAL_FLASH_SET_LATENCY
Description:
Set the FLASH Latency.
Parameters:
__LATENCY__: FLASH
Latency This parameter can be
one of the following values:
FLASH_LATENCY_0
FLASH Zero Latency cycle
FLASH_LATENCY_1
FLASH One Latency cycle
Return value:
none
__HAL_FLASH_GET_LATENCY
Description:
Get the FLASH Latency.
Return value:
FLASH: Latency This parameter
can be one of the following
values:
FLASH_LATENCY_0
FLASH Zero Latency cycle
FLASH_LATENCY_1
FLASH One Latency cycle
__HAL_FLASH_PREFETCH_BUFFER_ENABLE
Description:
Enable the FLASH prefetch
buffer.
Return value:
none
__HAL_FLASH_PREFETCH_BUFFER_DISABLE
Description:
Disable the FLASH prefetch
buffer.
Return value:
none
__HAL_FLASH_BUFFER_CACHE_ENABLE
Description:
Enable the FLASH Buffer
cache.
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Return value:
none
__HAL_FLASH_BUFFER_CACHE_DISABLE
Description:
Disable the FLASH Buffer
cache.
Return value:
none
__HAL_FLASH_PREREAD_BUFFER_ENABLE
Description:
Enable the FLASH preread
buffer.
Return value:
none
__HAL_FLASH_PREREAD_BUFFER_DISABLE
Description:
Disable the FLASH preread
buffer.
Return value:
none
__HAL_FLASH_SLEEP_POWERDOWN_ENABLE
Description:
Enable the FLASH power down
during Sleep mode.
Return value:
none
__HAL_FLASH_SLEEP_POWERDOWN_DISABLE
Description:
Disable the FLASH power down
during Sleep mode.
Return value:
none
__HAL_FLASH_POWER_DOWN_ENABLE
Notes:
Writing this bit to 0 this bit,
automatically the keys are loss
and a new unlock sequence is
necessary to re-write it to 1.
__HAL_FLASH_POWER_DOWN_DISABLE
Notes:
Writing this bit to 0 this bit,
automatically the keys are loss
and a new unlock sequence is
necessary to re-write it to 1.
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FLASHEx Option Advanced Type
OPTIONBYTE_PCROP
PCROP option byte configuration
OPTIONBYTE_BOOTCONFIG
BOOTConfig option byte configuration
FLASHEx Option Bytes BOOT
OB_BOOT_BANK1
At startup, if boot pin 0 and BOOT1 bit are set in boot from user
Flash position and this parameter is selected the device will boot
from Bank 1 (Default)
OB_BOOT_BANK2
At startup, if boot pin 0 and BOOT1 bit are set in boot from user
Flash position and this parameter is selected the device will boot
from Bank 2
FLASH Option Bytes BOOT Bit1 Setup
OB_BOOT_BIT1_RESET
BOOT Bit 1 Reset
OB_BOOT_BIT1_SET
BOOT Bit 1 Set
FLASHEx Option Bytes BOR Level
OB_BOR_OFF
BOR is disabled at power down, the reset is asserted when the
VDD power supply reaches the PDR(Power Down Reset)
threshold (1.5V)
OB_BOR_LEVEL1
BOR Reset threshold levels for 1.7V - 1.8V VDD power supply
OB_BOR_LEVEL2
BOR Reset threshold levels for 1.9V - 2.0V VDD power supply
OB_BOR_LEVEL3
BOR Reset threshold levels for 2.3V - 2.4V VDD power supply
OB_BOR_LEVEL4
BOR Reset threshold levels for 2.55V - 2.65V VDD power supply
OB_BOR_LEVEL5
BOR Reset threshold levels for 2.8V - 2.9V VDD power supply
FLASHEx Option Bytes IWatchdog
OB_IWDG_SW
Software WDG selected
OB_IWDG_HW
Hardware WDG selected
FLASHEx Option Bytes nRST_STDBY
OB_STDBY_NORST
No reset generated when entering in STANDBY
OB_STDBY_RST
Reset generated when entering in STANDBY
FLASHEx Option Bytes nRST_STOP
OB_STOP_NORST
No reset generated when entering in STOP
OB_STOP_RST
Reset generated when entering in STOP
FLASH Option Bytes PC Read/Write Protection
OB_PCROP_Pages0to31
OB_PCROP_Pages32to63
OB_PCROP_Pages64to95
OB_PCROP_Pages96to127
OB_PCROP_Pages128to159
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OB_PCROP_Pages160to191
OB_PCROP_Pages192to223
OB_PCROP_Pages224to255
OB_PCROP_Pages256to287
OB_PCROP_Pages288to319
OB_PCROP_Pages320to351
OB_PCROP_Pages352to383
OB_PCROP_Pages384to415
OB_PCROP_Pages416to447
OB_PCROP_Pages448to479
OB_PCROP_Pages480to511
OB_PCROP_Pages512to543
OB_PCROP_Pages544to575
OB_PCROP_Pages576to607
OB_PCROP_Pages608to639
OB_PCROP_Pages640to671
OB_PCROP_Pages672to703
OB_PCROP_Pages704to735
OB_PCROP_Pages736to767
OB_PCROP_Pages768to799
OB_PCROP_Pages800to831
OB_PCROP_Pages832to863
OB_PCROP_Pages864to895
OB_PCROP_Pages896to927
OB_PCROP_Pages928to959
OB_PCROP_Pages960to991
OB_PCROP_Pages992to1023
OB_PCROP_AllPages
PC Read/Write protection of all Sectors
FLASH Option Bytes PC Read/Write Protection (Sector 2)
OB_PCROP2_Pages1024to1055
OB_PCROP2_Pages1056to1087
OB_PCROP2_Pages1088to1119
OB_PCROP2_Pages1120to1151
OB_PCROP2_Pages1152to1183
OB_PCROP2_Pages1184to1215
OB_PCROP2_Pages1216to1247
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OB_PCROP2_Pages1248to1279
OB_PCROP2_Pages1280to1311
OB_PCROP2_Pages1312to1343
OB_PCROP2_Pages1344to1375
OB_PCROP2_Pages1376to1407
OB_PCROP2_Pages1408to1439
OB_PCROP2_Pages1440to1471
OB_PCROP2_Pages1472to1503
OB_PCROP2_Pages1504to1535
OB_PCROP2_AllPages
PC Read/Write protection of all Sectors PCROP2
FLASHEx Option Bytes Read Protection
OB_RDP_LEVEL_0
OB_RDP_LEVEL_1
OB_RDP_LEVEL_2
FLASH Option Bytes Write ProtectionP
OB_WRP_Pages0to31
OB_WRP_Pages32to63
OB_WRP_Pages64to95
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FLASHEx Option Type
OPTIONBYTE_WRP
WRP option byte configuration
OPTIONBYTE_RDP
RDP option byte configuration
OPTIONBYTE_USER
USER option byte configuration
OPTIONBYTE_BOR
BOR option byte configuration
OPTIONBYTE_BOOT_BIT1
BOOT PIN1 option byte configuration
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FLASHEx PCROP State
OB_PCROP_STATE_DISABLE
Disable PCROP for selected sectors
OB_PCROP_STATE_ENABLE
Enable PCROP for selected sectors
FLASHEx Selection Protection Mode
OB_PCROP_DESELECTED
Disabled PCROP, nWPRi bits used for Write Protection on
sector i
OB_PCROP_SELECTED
Enable PCROP, nWPRi bits used for PCRoP Protection on
sector i
FLASHEx_Type_Erase
FLASH_TYPEERASE_PAGES
Page erase only
FLASHEx Type Program Data
FLASH_TYPEPROGRAMDATA_BYTE
Program byte (8-bit) at a specified
address.
FLASH_TYPEPROGRAMDATA_HALFWORD
Program a half-word (16-bit) at a specified
address.
FLASH_TYPEPROGRAMDATA_WORD
Program a word (32-bit) at a specified
address.
FLASHEx WRP State
OB_WRPSTATE_DISABLE
Disable the write protection of the desired sectors
OB_WRPSTATE_ENABLE
Enable the write protection of the desired sectors
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21 HAL FLASH__RAMFUNC Generic Driver
21.1 FLASH__RAMFUNC Firmware driver API description
21.1.1 Peripheral errors functions
This subsection permit to get in run-time errors of the FLASH peripheral.
This section contains the following APIs:
HAL_FLASHEx_GetError()
21.1.2 Detailed description of functions
HAL_FLASHEx_EnableRunPowerDown
Function name
__RAM_FUNC HAL_FLASHEx_EnableRunPowerDown (void )
Function description
Enable the power down mode during RUN mode.
Return values
HAL: status
Notes
This function can be used only when the user code is running
from Internal SRAM.
HAL_FLASHEx_DisableRunPowerDown
Function name
__RAM_FUNC HAL_FLASHEx_DisableRunPowerDown (void )
Function description
Disable the power down mode during RUN mode.
Return values
HAL: status
Notes
This function can be used only when the user code is running
from Internal SRAM.
HAL_FLASHEx_EraseParallelPage
Function name
__RAM_FUNC HAL_FLASHEx_EraseParallelPage (uint32_t
Page_Address1, uint32_t Page_Address2)
Function description
Erases a specified 2 pages in program memory in parallel.
Parameters
Page_Address1: The page address in program memory to
be erased in the first Bank (BANK1). This parameter should
be between FLASH_BASE and FLASH_BANK1_END.
Page_Address2: The page address in program memory to
be erased in the second Bank (BANK2). This parameter
should be between FLASH_BANK2_BASE and
FLASH_BANK2_END.
Return values
HAL: status
Notes
This function can be used only for
STM32L07xxx/STM32L08xxx devices. To correctly run this
function, the HAL_FLASH_Unlock() function must be called
before. Call the HAL_FLASH_Lock() to disable the flash
memory access (recommended to protect the FLASH
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memory against possible unwanted operation).
A Page is erased in the Program memory only if the address
to load is the start address of a page (multiple of
FLASH_PAGE_SIZE bytes).
HAL_FLASHEx_ProgramParallelHalfPage
Function name
__RAM_FUNC HAL_FLASHEx_ProgramParallelHalfPage
(uint32_t Address1, uint32_t * pBuffer1, uint32_t Address2,
uint32_t * pBuffer2)
Function description
Program 2 half pages in program memory in parallel (half page
size is 16 Words).
Parameters
Address1: specifies the first address to be written in the first
bank (BANK1). This parameter should be between
FLASH_BASE and (FLASH_BANK1_END -
FLASH_PAGE_SIZE).
pBuffer1: pointer to the buffer containing the data to be
written to the first half page in the first bank.
Address2: specifies the second address to be written in the
second bank (BANK2). This parameter should be between
FLASH_BANK2_BASE and (FLASH_BANK2_END -
FLASH_PAGE_SIZE).
pBuffer2: pointer to the buffer containing the data to be
written to the second half page in the second bank.
Return values
HAL: status
Notes
This function can be used only for
STM32L07xxx/STM32L08xxx devices.
To correctly run this function, the HAL_FLASH_Unlock()
function must be called before. Call the HAL_FLASH_Lock()
to disable the flash memory access (recommended to protect
the FLASH memory against possible unwanted operation).
Half page write is possible only from SRAM.
A half page is written to the program memory only if the first
address to load is the start address of a half page (multiple of
64 bytes) and the 15 remaining words to load are in the same
half page.
During the Program memory half page write all read
operations are forbidden (this includes DMA read operations
and debugger read operations such as breakpoints, periodic
updates, etc.).
If a PGAERR is set during a Program memory half page write,
the complete write operation is aborted. Software should then
reset the FPRG and PROG/DATA bits and restart the write
operation from the beginning.
HAL_FLASHEx_HalfPageProgram
Function name
__RAM_FUNC HAL_FLASHEx_HalfPageProgram (uint32_t
Address, uint32_t * pBuffer)
Function description
Program a half page in program memory.
Parameters
Address: specifies the address to be written.
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pBuffer: pointer to the buffer containing the data to be
written to the half page.
Return values
HAL: status
Notes
To correctly run this function, the HAL_FLASH_Unlock()
function must be called before. Call the HAL_FLASH_Lock()
to disable the flash memory access (recommended to protect
the FLASH memory against possible unwanted operation)
Half page write is possible only from SRAM.
A half page is written to the program memory only if the first
address to load is the start address of a half page (multiple of
64 bytes) and the 15 remaining words to load are in the same
half page.
During the Program memory half page write all read
operations are forbidden (this includes DMA read operations
and debugger read operations such as breakpoints, periodic
updates, etc.).
If a PGAERR is set during a Program memory half page write,
the complete write operation is aborted. Software should then
reset the FPRG and PROG/DATA bits and restart the write
operation from the beginning.
HAL_FLASHEx_GetError
Function name
__RAM_FUNC HAL_FLASHEx_GetError (uint32_t * Error)
Function description
Get the specific FLASH errors flag.
Parameters
Error: pointer is the error value. It can be a mixed of:
HAL_FLASH_ERROR_RD FLASH Read Protection error
flag (PCROP)
HAL_FLASH_ERROR_SIZE FLASH Programming
Parallelism error flag
HAL_FLASH_ERROR_PGA FLASH Programming
Alignment error flag
HAL_FLASH_ERROR_WRP FLASH Write protected
error flag
HAL_FLASH_ERROR_OPTV FLASH Option valid error
flag
HAL_FLASH_ERROR_FWWERR FLASH Write or Erase
operation aborted
HAL_FLASH_ERROR_NOTZERO FLASH Write
operation is done in a not-erased region
Return values
HAL: Status
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22 HAL GPIO Generic Driver
22.1 GPIO Firmware driver registers structures
22.1.1 GPIO_InitTypeDef
Data Fields
uint32_t Pin
uint32_t Mode
uint32_t Pull
uint32_t Speed
uint32_t Alternate
Field Documentation
uint32_t GPIO_InitTypeDef::Pin
Specifies the GPIO pins to be configured. This parameter can be a combination of
GPIO_pins_define
uint32_t GPIO_InitTypeDef::Mode
Specifies the operating mode for the selected pins. This parameter can be a value of
GPIO_mode_define
uint32_t GPIO_InitTypeDef::Pull
Specifies the Pull-up or Pull-Down activation for the selected pins. This parameter can
be a value of GPIO_pull_define
uint32_t GPIO_InitTypeDef::Speed
Specifies the speed for the selected pins. This parameter can be a value of
GPIO_speed_define
uint32_t GPIO_InitTypeDef::Alternate
Peripheral to be connected to the selected pins This parameter can be a value of
GPIOEx_Alternate_function_selection
22.2 GPIO Firmware driver API description
22.2.1 GPIO Peripheral features
Each port bit of the general-purpose I/O (GPIO) ports can be individually configured by
software in several modes:
Input mode
Analog mode
Output mode
Alternate function mode
External interrupt/event lines
During and just after reset, the alternate functions and external interrupt lines are not
active and the I/O ports are configured in input floating mode.
All GPIO pins have weak internal pull-up and pull-down resistors, which can be
activated or not.
In Output or Alternate mode, each IO can be configured on open-drain or push-pull
type and the IO speed can be selected depending on the VDD value.
The microcontroller IO pins are connected to onboard peripherals/modules through a
multiplexer that allows only one peripheral alternate function (AF) connected to an IO
pin at a time. In this way, there can be no conflict between peripherals sharing the
same IO pin.
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All ports have external interrupt/event capability. To use external interrupt lines, the
port must be configured in input mode. All available GPIO pins are connected to the
16 external interrupt/event lines from EXTI0 to EXTI15.
The external interrupt/event controller consists of up to 28 edge detectors (16 lines are
connected to GPIO) for generating event/interrupt requests (each input line can be
independently configured to select the type (interrupt or event) and the corresponding
trigger event (rising or falling or both). Each line can also be masked independently.
22.2.2 How to use this driver
1. Enable the GPIO IOPORT clock using the following function:
__HAL_RCC_GPIOx_CLK_ENABLE().
2. Configure the GPIO pin(s) using HAL_GPIO_Init().
Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure
Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef
structure.
In case of Output or alternate function mode selection: the speed is configured
through "Speed" member from GPIO_InitTypeDef structure.
In alternate mode is selection, the alternate function connected to the IO is
configured through "Alternate" member from GPIO_InitTypeDef structure.
Analog mode is required when a pin is to be used as ADC channel or DAC
output.
In case of external interrupt/event selection the "Mode" member from
GPIO_InitTypeDef structure select the type (interrupt or event) and the
corresponding trigger event (rising or falling or both).
3. In case of external interrupt/event mode selection, configure NVIC IRQ priority
mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using
HAL_NVIC_EnableIRQ().
4. HAL_GPIO_DeInit allows to set register values to their reset value. This function is
also to be used when unconfiguring pin which was used as an external interrupt or in
event mode. That is the only way to reset the corresponding bit in EXTI & SYSCFG
registers.
5. To get the level of a pin configured in input mode use HAL_GPIO_ReadPin().
6. To set/reset the level of a pin configured in output mode use
HAL_GPIO_WritePin()/HAL_GPIO_TogglePin().
7. To lock pin configuration until next reset use HAL_GPIO_LockPin().
8. During and just after reset, the alternate functions are not active and the GPIO pins
are configured in input floating mode (except JTAG pins).
9. The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose
(PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has priority
over the GPIO function.
10. The HSE oscillator pins OSC_IN/OSC_OUT can be used as general purpose PH0 and
PH1, respectively, when the HSE oscillator is off. The HSE has priority over the GPIO
function.
22.2.3 Initialization and de-initialization functions
This section contains the following APIs:
HAL_GPIO_Init()
HAL_GPIO_DeInit()
22.2.4 IO operation functions
This section contains the following APIs:
HAL_GPIO_ReadPin()
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HAL_GPIO_WritePin()
HAL_GPIO_TogglePin()
HAL_GPIO_LockPin()
HAL_GPIO_EXTI_IRQHandler()
HAL_GPIO_EXTI_Callback()
22.2.5 Detailed description of functions
HAL_GPIO_Init
Function name
void HAL_GPIO_Init (GPIO_TypeDef * GPIOx,
GPIO_InitTypeDef * GPIO_Init)
Function description
Initializes the GPIOx peripheral according to the specified
parameters in the GPIO_Init.
Parameters
GPIOx: where x can be (A..E and H) to select the GPIO
peripheral for STM32L0XX family devices. Note that GPIOE is
not available on all devices.
GPIO_Init: pointer to a GPIO_InitTypeDef structure that
contains the configuration information for the specified GPIO
peripheral.
Return values
None
HAL_GPIO_DeInit
Function name
void HAL_GPIO_DeInit (GPIO_TypeDef * GPIOx, uint32_t
GPIO_Pin)
Function description
De-initializes the GPIOx peripheral registers to their default reset
values.
Parameters
GPIOx: where x can be (A..E and H) to select the GPIO
peripheral for STM32L0XX family devices. Note that GPIOE is
not available on all devices.
GPIO_Pin: specifies the port bit to be written. This parameter
can be one of GPIO_PIN_x where x can be (0..15). All port
bits are not necessarily available on all GPIOs.
Return values
None
HAL_GPIO_ReadPin
Function name
GPIO_PinState HAL_GPIO_ReadPin (GPIO_TypeDef * GPIOx,
uint16_t GPIO_Pin)
Function description
Reads the specified input port pin.
Parameters
GPIOx: where x can be (A..E and H) to select the GPIO
peripheral for STM32L0xx family devices. Note that GPIOE is
not available on all devices.
GPIO_Pin: specifies the port bit to read. This parameter can
be GPIO_PIN_x where x can be (0..15). All port bits are not
necessarily available on all GPIOs.
Return values
The: input port pin value.
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HAL_GPIO_WritePin
Function name
void HAL_GPIO_WritePin (GPIO_TypeDef * GPIOx, uint16_t
GPIO_Pin, GPIO_PinState PinState)
Function description
Sets or clears the selected data port bit.
Parameters
GPIOx: where x can be (A..E and H) to select the GPIO
peripheral for STM32L0xx family devices. Note that GPIOE is
not available on all devices.
GPIO_Pin: specifies the port bit to be written. This parameter
can be one of GPIO_PIN_x where x can be (0..15). All port
bits are not necessarily available on all GPIOs.
PinState: specifies the value to be written to the selected bit.
This parameter can be one of the GPIO_PinState enum
values: GPIO_PIN_RESET: to clear the port pin
GPIO_PIN_SET: to set the port pin
Return values
None
Notes
This function uses GPIOx_BSRR register to allow atomic
read/modify accesses. In this way, there is no risk of an IRQ
occurring between the read and the modify access.
HAL_GPIO_TogglePin
Function name
void HAL_GPIO_TogglePin (GPIO_TypeDef * GPIOx, uint16_t
GPIO_Pin)
Function description
Toggles the specified GPIO pins.
Parameters
GPIOx: Where x can be (A..E and H) to select the GPIO
peripheral for STM32L0xx family devices. Note that GPIOE is
not available on all devices. All port bits are not necessarily
available on all GPIOs.
GPIO_Pin: Specifies the pins to be toggled.
Return values
None
HAL_GPIO_LockPin
Function name
HAL_StatusTypeDef HAL_GPIO_LockPin (GPIO_TypeDef *
GPIOx, uint16_t GPIO_Pin)
Function description
Locks GPIO Pins configuration registers.
Parameters
GPIOx: where x can be (A..E and H) to select the GPIO
peripheral for STM32L0xx family. Note that GPIOE is not
available on all devices.
GPIO_Pin: specifies the port bit to be locked. This parameter
can be any combination of GPIO_Pin_x where x can be
(0..15). All port bits are not necessarily available on all
GPIOs.
Return values
None
Notes
The locked registers are GPIOx_MODER, GPIOx_OTYPER,
GPIOx_OSPEEDR, GPIOx_PUPDR, GPIOx_AFRL and
GPIOx_AFRH.
The configuration of the locked GPIO pins can no longer be
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modified until the next reset.
HAL_GPIO_EXTI_IRQHandler
Function name
void HAL_GPIO_EXTI_IRQHandler (uint16_t GPIO_Pin)
Function description
This function handles EXTI interrupt request.
Parameters
GPIO_Pin: Specifies the pins connected to the EXTI line.
Return values
None
HAL_GPIO_EXTI_Callback
Function name
void HAL_GPIO_EXTI_Callback (uint16_t GPIO_Pin)
Function description
EXTI line detection callbacks.
Parameters
GPIO_Pin: Specifies the pins connected to the EXTI line.
Return values
None
22.3 GPIO Firmware driver defines
22.3.1 GPIO
GPIO Exported Constants
GPIO_PIN_MASK
IS_GPIO_PIN
IS_GPIO_MODE
IS_GPIO_SPEED
IS_GPIO_PULL
GPIO Exported Macros
__HAL_GPIO_EXTI_GET_FLAG
Description:
Checks whether the specified EXTI line
flag is set or not.
Parameters:
__EXTI_LINE__: specifies the EXTI line
flag to check. This parameter can be
GPIO_PIN_x where x can be(0..15)
Return value:
The: new state of __EXTI_LINE__ (SET or
RESET).
__HAL_GPIO_EXTI_CLEAR_FLAG
Description:
Clears the EXTI's line pending flags.
Parameters:
__EXTI_LINE__: specifies the EXTI lines
flags to clear. This parameter can be any
combination of GPIO_PIN_x where x can
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be (0..15)
Return value:
None
__HAL_GPIO_EXTI_GET_IT
Description:
Checks whether the specified EXTI line is
asserted or not.
Parameters:
__EXTI_LINE__: specifies the EXTI line to
check. This parameter can be
GPIO_PIN_x where x can be(0..15)
Return value:
The: new state of __EXTI_LINE__ (SET or
RESET).
__HAL_GPIO_EXTI_CLEAR_IT
Description:
Clears the EXTI's line pending bits.
Parameters:
__EXTI_LINE__: specifies the EXTI lines
to clear. This parameter can be any
combination of GPIO_PIN_x where x can
be (0..15)
Return value:
None
__HAL_GPIO_EXTI_GENERATE_SWIT
Description:
Generates a Software interrupt on selected
EXTI line.
Parameters:
__EXTI_LINE__: specifies the EXTI line to
check. This parameter can be
GPIO_PIN_x where x can be(0..15)
Return value:
None
GPIO Exported Types
IS_GPIO_PIN_ACTION
Mode definition
GPIO_MODE_INPUT
Input Floating Mode
GPIO_MODE_OUTPUT_PP
Output Push Pull Mode
GPIO_MODE_OUTPUT_OD
Output Open Drain Mode
GPIO_MODE_AF_PP
Alternate Function Push Pull Mode
GPIO_MODE_AF_OD
Alternate Function Open Drain Mode
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GPIO_MODE_ANALOG
Analog Mode
GPIO_MODE_IT_RISING
External Interrupt Mode with Rising edge trigger
detection
GPIO_MODE_IT_FALLING
External Interrupt Mode with Falling edge trigger
detection
GPIO_MODE_IT_RISING_FALLING
External Interrupt Mode with Rising/Falling edge
trigger detection
GPIO_MODE_EVT_RISING
External Event Mode with Rising edge trigger
detection
GPIO_MODE_EVT_FALLING
External Event Mode with Falling edge trigger
detection
GPIO_MODE_EVT_RISING_FALLING
External Event Mode with Rising/Falling edge
trigger detection
Pin definition
GPIO_PIN_0
GPIO_PIN_1
GPIO_PIN_2
GPIO_PIN_3
GPIO_PIN_4
GPIO_PIN_5
GPIO_PIN_6
GPIO_PIN_7
GPIO_PIN_8
GPIO_PIN_9
GPIO_PIN_10
GPIO_PIN_11
GPIO_PIN_12
GPIO_PIN_13
GPIO_PIN_14
GPIO_PIN_15
GPIO_PIN_All
Pull definition
GPIO_NOPULL
No Pull-up or Pull-down activation
GPIO_PULLUP
Pull-up activation
GPIO_PULLDOWN
Pull-down activation
Speed definition
GPIO_SPEED_FREQ_LOW
range up to 0.4 MHz, please refer to the product
datasheet
GPIO_SPEED_FREQ_MEDIUM
range 0.4 MHz to 2 MHz, please refer to the product
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datasheet
GPIO_SPEED_FREQ_HIGH
range 2 MHz to 10 MHz, please refer to the product
datasheet
GPIO_SPEED_FREQ_VERY_HIGH
range 10 MHz to 35 MHz, please refer to the
product datasheet
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23 HAL GPIO Extension Driver
23.1 GPIOEx Firmware driver defines
23.1.1 GPIOEx
Alternate function selection
GPIO_AF0_EVENTOUT
GPIO_AF0_TIM21
GPIO_AF0_SPI1
GPIO_AF0_MCO
GPIO_AF0_SWDIO
GPIO_AF0_SWCLK
GPIO_AF0_USART1
GPIO_AF0_SPI2
GPIO_AF0_LPTIM1
GPIO_AF0_TIM22
GPIO_AF0_LPUART1
GPIO_AF0_USART2
GPIO_AF0_TIM2
GPIO_AF0_USB
GPIO_AF1_I2C1
GPIO_AF1_SPI2
GPIO_AF1_TIM21
GPIO_AF1_LCD
GPIO_AF2_TIM2
GPIO_AF2_TIM3
GPIO_AF2_EVENTOUT
GPIO_AF2_LPTIM1
GPIO_AF2_LPUART1
GPIO_AF2_MCO
GPIO_AF2_RTC
GPIO_AF2_SPI2
GPIO_AF2_USART5
GPIO_AF2_SPI1
GPIO_AF2_USB
GPIO_AF3_EVENTOUT
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GPIO_AF3_I2C1
GPIO_AF3_TSC
GPIO_AF4_USART2
GPIO_AF4_LPUART1
GPIO_AF4_USART1
GPIO_AF4_EVENTOUT
GPIO_AF4_TIM22
GPIO_AF4_TIM3
GPIO_AF4_I2C1
GPIO_AF5_TIM2
GPIO_AF5_TIM21
GPIO_AF5_TIM22
GPIO_AF5_USART1
GPIO_AF5_SPI2
GPIO_AF5_I2C2
GPIO_AF6_USART4
GPIO_AF6_LPUART1
GPIO_AF6_EVENTOUT
GPIO_AF6_I2C1
GPIO_AF6_I2C2
GPIO_AF6_USART5
GPIO_AF6_TIM21
GPIO_AF7_COMP1
GPIO_AF7_COMP2
GPIO_AF7_I2C3
GPIO_AF7_LPUART1
Pin available
GPIOA_PIN_AVAILABLE
GPIOB_PIN_AVAILABLE
GPIOC_PIN_AVAILABLE
GPIOD_PIN_AVAILABLE
GPIOE_PIN_AVAILABLE
GPIOH_PIN_AVAILABLE
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24 HAL I2C Generic Driver
24.1 I2C Firmware driver registers structures
24.1.1 I2C_InitTypeDef
Data Fields
uint32_t Timing
uint32_t OwnAddress1
uint32_t AddressingMode
uint32_t DualAddressMode
uint32_t OwnAddress2
uint32_t OwnAddress2Masks
uint32_t GeneralCallMode
uint32_t NoStretchMode
Field Documentation
uint32_t I2C_InitTypeDef::Timing
Specifies the I2C_TIMINGR_register value. This parameter calculated by referring to
I2C initialization section in Reference manual
uint32_t I2C_InitTypeDef::OwnAddress1
Specifies the first device own address. This parameter can be a 7-bit or 10-bit
address.
uint32_t I2C_InitTypeDef::AddressingMode
Specifies if 7-bit or 10-bit addressing mode is selected. This parameter can be a value
of I2C_ADDRESSING_MODE
uint32_t I2C_InitTypeDef::DualAddressMode
Specifies if dual addressing mode is selected. This parameter can be a value of
I2C_DUAL_ADDRESSING_MODE
uint32_t I2C_InitTypeDef::OwnAddress2
Specifies the second device own address if dual addressing mode is selected This
parameter can be a 7-bit address.
uint32_t I2C_InitTypeDef::OwnAddress2Masks
Specifies the acknowledge mask address second device own address if dual
addressing mode is selected This parameter can be a value of
I2C_OWN_ADDRESS2_MASKS
uint32_t I2C_InitTypeDef::GeneralCallMode
Specifies if general call mode is selected. This parameter can be a value of
I2C_GENERAL_CALL_ADDRESSING_MODE
uint32_t I2C_InitTypeDef::NoStretchMode
Specifies if nostretch mode is selected. This parameter can be a value of
I2C_NOSTRETCH_MODE
24.1.2 __I2C_HandleTypeDef
Data Fields
I2C_TypeDef * Instance
I2C_InitTypeDef Init
uint8_t * pBuffPtr
uint16_t XferSize
__IO uint16_t XferCount
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__IO uint32_t XferOptions
__IO uint32_t PreviousState
HAL_StatusTypeDef(* XferISR
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
HAL_LockTypeDef Lock
__IO HAL_I2C_StateTypeDef State
__IO HAL_I2C_ModeTypeDef Mode
__IO uint32_t ErrorCode
__IO uint32_t AddrEventCount
Field Documentation
I2C_TypeDef* __I2C_HandleTypeDef::Instance
I2C registers base address
I2C_InitTypeDef __I2C_HandleTypeDef::Init
I2C communication parameters
uint8_t* __I2C_HandleTypeDef::pBuffPtr
Pointer to I2C transfer buffer
uint16_t __I2C_HandleTypeDef::XferSize
I2C transfer size
__IO uint16_t __I2C_HandleTypeDef::XferCount
I2C transfer counter
__IO uint32_t __I2C_HandleTypeDef::XferOptions
I2C sequantial transfer options, this parameter can be a value of I2C_XFEROPTIONS
__IO uint32_t __I2C_HandleTypeDef::PreviousState
I2C communication Previous state
HAL_StatusTypeDef(* __I2C_HandleTypeDef::XferISR)(struct
__I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources)
I2C transfer IRQ handler function pointer
DMA_HandleTypeDef* __I2C_HandleTypeDef::hdmatx
I2C Tx DMA handle parameters
DMA_HandleTypeDef* __I2C_HandleTypeDef::hdmarx
I2C Rx DMA handle parameters
HAL_LockTypeDef __I2C_HandleTypeDef::Lock
I2C locking object
__IO HAL_I2C_StateTypeDef __I2C_HandleTypeDef::State
I2C communication state
__IO HAL_I2C_ModeTypeDef __I2C_HandleTypeDef::Mode
I2C communication mode
__IO uint32_t __I2C_HandleTypeDef::ErrorCode
I2C Error code
__IO uint32_t __I2C_HandleTypeDef::AddrEventCount
I2C Address Event counter
24.2 I2C Firmware driver API description
24.2.1 How to use this driver
The I2C HAL driver can be used as follows:
1. Declare a I2C_HandleTypeDef handle structure, for example: I2C_HandleTypeDef
hi2c;
2. Initialize the I2C low level resources by implementing the HAL_I2C_MspInit() API:
a. Enable the I2Cx interface clock
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b. I2C pins configuration
Enable the clock for the I2C GPIOs
Configure I2C pins as alternate function open-drain
c. NVIC configuration if you need to use interrupt process
Configure the I2Cx interrupt priority
Enable the NVIC I2C IRQ Channel
d. DMA Configuration if you need to use DMA process
Declare a DMA_HandleTypeDef handle structure for the transmit or receive
channel
Enable the DMAx interface clock using
Configure the DMA handle parameters
Configure the DMA Tx or Rx channel
Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx or Rx channel
3. Configure the Communication Clock Timing, Own Address1, Master Addressing
mode, Dual Addressing mode, Own Address2, Own Address2 Mask, General call and
Nostretch mode in the hi2c Init structure.
4. Initialize the I2C registers by calling the HAL_I2C_Init(), configures also the low level
Hardware (GPIO, CLOCK, NVIC...etc) by calling the customized
HAL_I2C_MspInit(&hi2c) API.
5. To check if target device is ready for communication, use the function
HAL_I2C_IsDeviceReady()
6. For I2C IO and IO MEM operations, three operation modes are available within this
driver :
Polling mode IO operation
Transmit in master mode an amount of data in blocking mode using
HAL_I2C_Master_Transmit()
Receive in master mode an amount of data in blocking mode using
HAL_I2C_Master_Receive()
Transmit in slave mode an amount of data in blocking mode using
HAL_I2C_Slave_Transmit()
Receive in slave mode an amount of data in blocking mode using
HAL_I2C_Slave_Receive()
Polling mode IO MEM operation
Write an amount of data in blocking mode to a specific memory address using
HAL_I2C_Mem_Write()
Read an amount of data in blocking mode from a specific memory address using
HAL_I2C_Mem_Read()
Interrupt mode IO operation
Transmit in master mode an amount of data in non-blocking mode using
HAL_I2C_Master_Transmit_IT()
At transmission end of transfer, HAL_I2C_MasterTxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_I2C_MasterTxCpltCallback()
Receive in master mode an amount of data in non-blocking mode using
HAL_I2C_Master_Receive_IT()
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At reception end of transfer, HAL_I2C_MasterRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MasterRxCpltCallback()
Transmit in slave mode an amount of data in non-blocking mode using
HAL_I2C_Slave_Transmit_IT()
At transmission end of transfer, HAL_I2C_SlaveTxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_SlaveTxCpltCallback()
Receive in slave mode an amount of data in non-blocking mode using
HAL_I2C_Slave_Receive_IT()
At reception end of transfer, HAL_I2C_SlaveRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_SlaveRxCpltCallback()
In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2C_ErrorCallback()
Abort a master I2C process communication with Interrupt using
HAL_I2C_Master_Abort_IT()
End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can add his
own code by customization of function pointer HAL_I2C_AbortCpltCallback()
Discard a slave I2C process communication using __HAL_I2C_GENERATE_NACK()
macro. This action will inform Master to generate a Stop condition to discard the
communication.
Interrupt mode IO sequential operation
These interfaces allow to manage a sequential transfer with a repeated start
condition when a direction change during transfer
A specific option field manage the different steps of a sequential transfer
Option field values are defined through @ref I2C_XFEROPTIONS and are listed
below:
I2C_FIRST_AND_LAST_FRAME: No sequential usage, functionnal is same as
associated interfaces in no sequential mode
I2C_FIRST_FRAME: Sequential usage, this option allow to manage a sequence
with start condition, address and data to transfer without a final stop condition
I2C_FIRST_AND_NEXT_FRAME: Sequential usage (Master only), this option
allow to manage a sequence with start condition, address and data to transfer
without a final stop condition, an then permit a call the same master sequential
interface several times (like HAL_I2C_Master_Sequential_Transmit_IT() then
HAL_I2C_Master_Sequential_Transmit_IT())
I2C_NEXT_FRAME: Sequential usage, this option allow to manage a sequence
with a restart condition, address and with new data to transfer if the direction
change or manage only the new data to transfer if no direction change and
without a final stop condition in both cases
I2C_LAST_FRAME: Sequential usage, this option allow to manage a sequance
with a restart condition, address and with new data to transfer if the direction
change or manage only the new data to transfer if no direction change and with a
final stop condition in both cases
Differents sequential I2C interfaces are listed below:
Sequential transmit in master I2C mode an amount of data in non-blocking mode
using HAL_I2C_Master_Sequential_Transmit_IT()
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At transmission end of current frame transfer,
HAL_I2C_MasterTxCpltCallback() is executed and user can add his own
code by customization of function pointer HAL_I2C_MasterTxCpltCallback()
Sequential receive in master I2C mode an amount of data in non-blocking mode
using HAL_I2C_Master_Sequential_Receive_IT()
At reception end of current frame transfer,
HAL_I2C_MasterRxCpltCallback() is executed and user can add his own
code by customization of function pointer HAL_I2C_MasterRxCpltCallback()
Abort a master I2C process communication with Interrupt using
HAL_I2C_Master_Abort_IT()
End of abort process, HAL_I2C_AbortCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_AbortCpltCallback()
Enable/disable the Address listen mode in slave I2C mode using
HAL_I2C_EnableListen_IT() HAL_I2C_DisableListen_IT()
When address slave I2C match, HAL_I2C_AddrCallback() is executed and
user can add his own code to check the Address Match Code and the
transmission direction request by master (Write/Read).
At Listen mode end HAL_I2C_ListenCpltCallback() is executed and user can
add his own code by customization of function pointer
HAL_I2C_ListenCpltCallback()
Sequential transmit in slave I2C mode an amount of data in non-blocking mode
using HAL_I2C_Slave_Sequential_Transmit_IT()
At transmission end of current frame transfer,
HAL_I2C_SlaveTxCpltCallback() is executed and user can add his own
code by customization of function pointer HAL_I2C_SlaveTxCpltCallback()
Sequential receive in slave I2C mode an amount of data in non-blocking mode
using HAL_I2C_Slave_Sequential_Receive_IT()
At reception end of current frame transfer, HAL_I2C_SlaveRxCpltCallback()
is executed and user can add his own code by customization of function
pointer HAL_I2C_SlaveRxCpltCallback()
In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user
can add his own code by customization of function pointer
HAL_I2C_ErrorCallback()
Abort a master I2C process communication with Interrupt using
HAL_I2C_Master_Abort_IT()
End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can
add his own code by customization of function pointer
HAL_I2C_AbortCpltCallback()
Discard a slave I2C process communication using
__HAL_I2C_GENERATE_NACK() macro. This action will inform Master to
generate a Stop condition to discard the communication.
Interrupt mode IO MEM operation
Write an amount of data in non-blocking mode with Interrupt to a specific memory
address using HAL_I2C_Mem_Write_IT()
At Memory end of write transfer, HAL_I2C_MemTxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MemTxCpltCallback()
Read an amount of data in non-blocking mode with Interrupt from a specific memory
address using HAL_I2C_Mem_Read_IT()
At Memory end of read transfer, HAL_I2C_MemRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MemRxCpltCallback()
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In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2C_ErrorCallback()
DMA mode IO operation
Transmit in master mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Master_Transmit_DMA()
At transmission end of transfer, HAL_I2C_MasterTxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_I2C_MasterTxCpltCallback()
Receive in master mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Master_Receive_DMA()
At reception end of transfer, HAL_I2C_MasterRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MasterRxCpltCallback()
Transmit in slave mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Slave_Transmit_DMA()
At transmission end of transfer, HAL_I2C_SlaveTxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_SlaveTxCpltCallback()
Receive in slave mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Slave_Receive_DMA()
At reception end of transfer, HAL_I2C_SlaveRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_SlaveRxCpltCallback()
In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2C_ErrorCallback()
Abort a master I2C process communication with Interrupt using
HAL_I2C_Master_Abort_IT()
End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can add his
own code by customization of function pointer HAL_I2C_AbortCpltCallback()
Discard a slave I2C process communication using __HAL_I2C_GENERATE_NACK()
macro. This action will inform Master to generate a Stop condition to discard the
communication.
DMA mode IO MEM operation
Write an amount of data in non-blocking mode with DMA to a specific memory
address using HAL_I2C_Mem_Write_DMA()
At Memory end of write transfer, HAL_I2C_MemTxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MemTxCpltCallback()
Read an amount of data in non-blocking mode with DMA from a specific memory
address using HAL_I2C_Mem_Read_DMA()
At Memory end of read transfer, HAL_I2C_MemRxCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_I2C_MemRxCpltCallback()
In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2C_ErrorCallback()
I2C HAL driver macros list
Below the list of most used macros in I2C HAL driver.
__HAL_I2C_ENABLE: Enable the I2C peripheral
__HAL_I2C_DISABLE: Disable the I2C peripheral
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__HAL_I2C_GENERATE_NACK: Generate a Non-Acknowledge I2C peripheral in
Slave mode
__HAL_I2C_GET_FLAG: Check whether the specified I2C flag is set or not
__HAL_I2C_CLEAR_FLAG: Clear the specified I2C pending flag
__HAL_I2C_ENABLE_IT: Enable the specified I2C interrupt
__HAL_I2C_DISABLE_IT: Disable the specified I2C interrupt
You can refer to the I2C HAL driver header file for more useful macros
24.2.2 Initialization and de-initialization functions
This subsection provides a set of functions allowing to initialize and deinitialize the I2Cx
peripheral:
User must Implement HAL_I2C_MspInit() function in which he configures all related
peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
Call the function HAL_I2C_Init() to configure the selected device with the selected
configuration:
Clock Timing
Own Address 1
Addressing mode (Master, Slave)
Dual Addressing mode
Own Address 2
Own Address 2 Mask
General call mode
Nostretch mode
Call the function HAL_I2C_DeInit() to restore the default configuration of the selected
I2Cx peripheral.
This section contains the following APIs:
HAL_I2C_Init()
HAL_I2C_DeInit()
HAL_I2C_MspInit()
HAL_I2C_MspDeInit()
24.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the I2C data transfers.
1. There are two modes of transfer:
Blocking mode : The communication is performed in the polling mode. The status
of all data processing is returned by the same function after finishing transfer.
No-Blocking mode : The communication is performed using Interrupts or DMA.
These functions return the status of the transfer startup. The end of the data
processing will be indicated through the dedicated I2C IRQ when using Interrupt
mode or the DMA IRQ when using DMA mode.
2. Blocking mode functions are :
HAL_I2C_Master_Transmit()
HAL_I2C_Master_Receive()
HAL_I2C_Slave_Transmit()
HAL_I2C_Slave_Receive()
HAL_I2C_Mem_Write()
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HAL_I2C_Mem_Read()
HAL_I2C_IsDeviceReady()
3. No-Blocking mode functions with Interrupt are :
HAL_I2C_Master_Transmit_IT()
HAL_I2C_Master_Receive_IT()
HAL_I2C_Slave_Transmit_IT()
HAL_I2C_Slave_Receive_IT()
HAL_I2C_Mem_Write_IT()
HAL_I2C_Mem_Read_IT()
4. No-Blocking mode functions with DMA are :
HAL_I2C_Master_Transmit_DMA()
HAL_I2C_Master_Receive_DMA()
HAL_I2C_Slave_Transmit_DMA()
HAL_I2C_Slave_Receive_DMA()
HAL_I2C_Mem_Write_DMA()
HAL_I2C_Mem_Read_DMA()
5. A set of Transfer Complete Callbacks are provided in non Blocking mode:
HAL_I2C_MemTxCpltCallback()
HAL_I2C_MemRxCpltCallback()
HAL_I2C_MasterTxCpltCallback()
HAL_I2C_MasterRxCpltCallback()
HAL_I2C_SlaveTxCpltCallback()
HAL_I2C_SlaveRxCpltCallback()
HAL_I2C_ErrorCallback()
This section contains the following APIs:
HAL_I2C_Master_Transmit()
HAL_I2C_Master_Receive()
HAL_I2C_Slave_Transmit()
HAL_I2C_Slave_Receive()
HAL_I2C_Master_Transmit_IT()
HAL_I2C_Master_Receive_IT()
HAL_I2C_Slave_Transmit_IT()
HAL_I2C_Slave_Receive_IT()
HAL_I2C_Master_Transmit_DMA()
HAL_I2C_Master_Receive_DMA()
HAL_I2C_Slave_Transmit_DMA()
HAL_I2C_Slave_Receive_DMA()
HAL_I2C_Mem_Write()
HAL_I2C_Mem_Read()
HAL_I2C_Mem_Write_IT()
HAL_I2C_Mem_Read_IT()
HAL_I2C_Mem_Write_DMA()
HAL_I2C_Mem_Read_DMA()
HAL_I2C_IsDeviceReady()
HAL_I2C_Master_Sequential_Transmit_IT()
HAL_I2C_Master_Sequential_Receive_IT()
HAL_I2C_Slave_Sequential_Transmit_IT()
HAL_I2C_Slave_Sequential_Receive_IT()
HAL_I2C_EnableListen_IT()
HAL_I2C_DisableListen_IT()
HAL_I2C_Master_Abort_IT()
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24.2.4 Peripheral State, Mode and Error functions
This subsection permit to get in run-time the status of the peripheral and the data flow.
This section contains the following APIs:
HAL_I2C_GetState()
HAL_I2C_GetMode()
HAL_I2C_GetError()
24.2.5 Detailed description of functions
HAL_I2C_Init
Function name
HAL_StatusTypeDef HAL_I2C_Init (I2C_HandleTypeDef * hi2c)
Function description
Initializes the I2C according to the specified parameters in the
I2C_InitTypeDef and initialize the associated handle.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
HAL: status
HAL_I2C_DeInit
Function name
HAL_StatusTypeDef HAL_I2C_DeInit (I2C_HandleTypeDef *
hi2c)
Function description
DeInitialize the I2C peripheral.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
HAL: status
HAL_I2C_MspInit
Function name
void HAL_I2C_MspInit (I2C_HandleTypeDef * hi2c)
Function description
Initialize the I2C MSP.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_MspDeInit
Function name
void HAL_I2C_MspDeInit (I2C_HandleTypeDef * hi2c)
Function description
DeInitialize the I2C MSP.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
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HAL_I2C_Master_Transmit
Function name
HAL_StatusTypeDef HAL_I2C_Master_Transmit
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size, uint32_t Timeout)
Function description
Transmits in master mode an amount of data in blocking mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_I2C_Master_Receive
Function name
HAL_StatusTypeDef HAL_I2C_Master_Receive
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size, uint32_t Timeout)
Function description
Receives in master mode an amount of data in blocking mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_I2C_Slave_Transmit
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Transmit
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Transmits in slave mode an amount of data in blocking mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
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HAL_I2C_Slave_Receive
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Receive
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Receive in slave mode an amount of data in blocking mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_I2C_Mem_Write
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Write
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size, uint32_t Timeout)
Function description
Write an amount of data in blocking mode to a specific memory
address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_I2C_Mem_Read
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Read
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size, uint32_t Timeout)
Function description
Read an amount of data in blocking mode from a specific memory
address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be sent
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Timeout: Timeout duration
Return values
HAL: status
HAL_I2C_IsDeviceReady
Function name
HAL_StatusTypeDef HAL_I2C_IsDeviceReady
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint32_t
Trials, uint32_t Timeout)
Function description
Checks if target device is ready for communication.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
Trials: Number of trials
Timeout: Timeout duration
Return values
HAL: status
Notes
This function is used with Memory devices
HAL_I2C_Master_Transmit_IT
Function name
HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size)
Function description
Transmit in master mode an amount of data in non-blocking mode
with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Master_Receive_IT
Function name
HAL_StatusTypeDef HAL_I2C_Master_Receive_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size)
Function description
Receive in master mode an amount of data in non-blocking mode
with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
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Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Slave_Transmit_IT
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size)
Function description
Transmit in slave mode an amount of data in non-blocking mode
with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Slave_Receive_IT
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size)
Function description
Receive in slave mode an amount of data in non-blocking mode
with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Mem_Write_IT
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Write_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size)
Function description
Write an amount of data in non-blocking mode with Interrupt to a
specific memory address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
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HAL_I2C_Mem_Read_IT
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Read_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size)
Function description
Read an amount of data in non-blocking mode with Interrupt from
a specific memory address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Master_Sequential_Transmit_IT
Function name
HAL_StatusTypeDef
HAL_I2C_Master_Sequential_Transmit_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size, uint32_t XferOptions)
Function description
Sequential transmit in master I2C mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of I2C Sequential
Transfer Options
Return values
HAL: status
Notes
This interface allow to manage repeated start condition when
a direction change during transfer
HAL_I2C_Master_Sequential_Receive_IT
Function name
HAL_StatusTypeDef HAL_I2C_Master_Sequential_Receive_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size, uint32_t XferOptions)
Function description
Sequential receive in master I2C mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
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address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of I2C Sequential
Transfer Options
Return values
HAL: status
Notes
This interface allow to manage repeated start condition when
a direction change during transfer
HAL_I2C_Slave_Sequential_Transmit_IT
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Transmit_IT
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size,
uint32_t XferOptions)
Function description
Sequential transmit in slave/device I2C mode an amount of data in
non-blocking mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of I2C Sequential
Transfer Options
Return values
HAL: status
Notes
This interface allow to manage repeated start condition when
a direction change during transfer
HAL_I2C_Slave_Sequential_Receive_IT
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Receive_IT
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size,
uint32_t XferOptions)
Function description
Sequential receive in slave/device I2C mode an amount of data in
non-blocking mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of I2C Sequential
Transfer Options
Return values
HAL: status
Notes
This interface allow to manage repeated start condition when
a direction change during transfer
HAL_I2C_EnableListen_IT
Function name
HAL_StatusTypeDef HAL_I2C_EnableListen_IT
(I2C_HandleTypeDef * hi2c)
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Function description
Enable the Address listen mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
HAL: status
HAL_I2C_DisableListen_IT
Function name
HAL_StatusTypeDef HAL_I2C_DisableListen_IT
(I2C_HandleTypeDef * hi2c)
Function description
Disable the Address listen mode with Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C
Return values
HAL: status
HAL_I2C_Master_Abort_IT
Function name
HAL_StatusTypeDef HAL_I2C_Master_Abort_IT
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress)
Function description
Abort a master I2C IT or DMA process communication with
Interrupt.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
Return values
HAL: status
HAL_I2C_Master_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size)
Function description
Transmit in master mode an amount of data in non-blocking mode
with DMA.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Master_Receive_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint8_t *
pData, uint16_t Size)
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Function description
Receive in master mode an amount of data in non-blocking mode
with DMA.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Slave_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size)
Function description
Transmit in slave mode an amount of data in non-blocking mode
with DMA.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Slave_Receive_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA
(I2C_HandleTypeDef * hi2c, uint8_t * pData, uint16_t Size)
Function description
Receive in slave mode an amount of data in non-blocking mode
with DMA.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Mem_Write_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size)
Function description
Write an amount of data in non-blocking mode with DMA to a
specific memory address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
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MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be sent
Return values
HAL: status
HAL_I2C_Mem_Read_DMA
Function name
HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA
(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t
MemAddress, uint16_t MemAddSize, uint8_t * pData, uint16_t
Size)
Function description
Reads an amount of data in non-blocking mode with DMA from a
specific memory address.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
MemAddress: Internal memory address
MemAddSize: Size of internal memory address
pData: Pointer to data buffer
Size: Amount of data to be read
Return values
HAL: status
HAL_I2C_EV_IRQHandler
Function name
void HAL_I2C_EV_IRQHandler (I2C_HandleTypeDef * hi2c)
Function description
This function handles I2C event interrupt request.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_ER_IRQHandler
Function name
void HAL_I2C_ER_IRQHandler (I2C_HandleTypeDef * hi2c)
Function description
This function handles I2C error interrupt request.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_MasterTxCpltCallback
Function name
void HAL_I2C_MasterTxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Master Tx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
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Return values
None
HAL_I2C_MasterRxCpltCallback
Function name
void HAL_I2C_MasterRxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Master Rx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_SlaveTxCpltCallback
Function name
void HAL_I2C_SlaveTxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Slave Tx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_SlaveRxCpltCallback
Function name
void HAL_I2C_SlaveRxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Slave Rx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_AddrCallback
Function name
void HAL_I2C_AddrCallback (I2C_HandleTypeDef * hi2c,
uint8_t TransferDirection, uint16_t AddrMatchCode)
Function description
Slave Address Match callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
TransferDirection: Master request Transfer Direction
(Write/Read), value of I2C Transfer Direction Master Point of
View
AddrMatchCode: Address Match Code
Return values
None
HAL_I2C_ListenCpltCallback
Function name
void HAL_I2C_ListenCpltCallback (I2C_HandleTypeDef * hi2c)
Function description
Listen Complete callback.
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Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_MemTxCpltCallback
Function name
void HAL_I2C_MemTxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Memory Tx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_MemRxCpltCallback
Function name
void HAL_I2C_MemRxCpltCallback (I2C_HandleTypeDef *
hi2c)
Function description
Memory Rx Transfer completed callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_ErrorCallback
Function name
void HAL_I2C_ErrorCallback (I2C_HandleTypeDef * hi2c)
Function description
I2C error callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_AbortCpltCallback
Function name
void HAL_I2C_AbortCpltCallback (I2C_HandleTypeDef * hi2c)
Function description
I2C abort callback.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
None
HAL_I2C_GetState
Function name
HAL_I2C_StateTypeDef HAL_I2C_GetState
(I2C_HandleTypeDef * hi2c)
Function description
Return the I2C handle state.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
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Return values
HAL: state
HAL_I2C_GetMode
Function name
HAL_I2C_ModeTypeDef HAL_I2C_GetMode
(I2C_HandleTypeDef * hi2c)
Function description
Returns the I2C Master, Slave, Memory or no mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for I2C module
Return values
HAL: mode
HAL_I2C_GetError
Function name
uint32_t HAL_I2C_GetError (I2C_HandleTypeDef * hi2c)
Function description
Return the I2C error code.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2C.
Return values
I2C: Error Code
24.3 I2C Firmware driver defines
24.3.1 I2C
I2C Addressing Mode
I2C_ADDRESSINGMODE_7BIT
I2C_ADDRESSINGMODE_10BIT
I2C Dual Addressing Mode
I2C_DUALADDRESS_DISABLE
I2C_DUALADDRESS_ENABLE
I2C Error Code definition
HAL_I2C_ERROR_NONE
No error
HAL_I2C_ERROR_BERR
BERR error
HAL_I2C_ERROR_ARLO
ARLO error
HAL_I2C_ERROR_AF
ACKF error
HAL_I2C_ERROR_OVR
OVR error
HAL_I2C_ERROR_DMA
DMA transfer error
HAL_I2C_ERROR_TIMEOUT
Timeout error
HAL_I2C_ERROR_SIZE
Size Management error
I2C Exported Macros
__HAL_I2C_RESET_HANDLE_STATE
Description:
Reset I2C handle state.
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Parameters:
__HANDLE__: specifies the I2C Handle.
Return value:
None
__HAL_I2C_ENABLE_IT
Description:
Enable the specified I2C interrupt.
Parameters:
__HANDLE__: specifies the I2C Handle.
__INTERRUPT__: specifies the interrupt
source to enable. This parameter can be
one of the following values:
I2C_IT_ERRI Errors interrupt enable
I2C_IT_TCI Transfer complete interrupt
enable
I2C_IT_STOPI STOP detection
interrupt enable
I2C_IT_NACKI NACK received
interrupt enable
I2C_IT_ADDRI Address match interrupt
enable
I2C_IT_RXI RX interrupt enable
I2C_IT_TXI TX interrupt enable
Return value:
None
__HAL_I2C_DISABLE_IT
Description:
Disable the specified I2C interrupt.
Parameters:
__HANDLE__: specifies the I2C Handle.
__INTERRUPT__: specifies the interrupt
source to disable. This parameter can be
one of the following values:
I2C_IT_ERRI Errors interrupt enable
I2C_IT_TCI Transfer complete interrupt
enable
I2C_IT_STOPI STOP detection
interrupt enable
I2C_IT_NACKI NACK received
interrupt enable
I2C_IT_ADDRI Address match interrupt
enable
I2C_IT_RXI RX interrupt enable
I2C_IT_TXI TX interrupt enable
Return value:
None
__HAL_I2C_GET_IT_SOURCE
Description:
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Check whether the specified I2C interrupt
source is enabled or not.
Parameters:
__HANDLE__: specifies the I2C Handle.
__INTERRUPT__: specifies the I2C
interrupt source to check. This parameter
can be one of the following values:
I2C_IT_ERRI Errors interrupt enable
I2C_IT_TCI Transfer complete interrupt
enable
I2C_IT_STOPI STOP detection
interrupt enable
I2C_IT_NACKI NACK received
interrupt enable
I2C_IT_ADDRI Address match interrupt
enable
I2C_IT_RXI RX interrupt enable
I2C_IT_TXI TX interrupt enable
Return value:
The: new state of __INTERRUPT__ (SET or
RESET).
__HAL_I2C_GET_FLAG
Description:
Check whether the specified I2C flag is set
or not.
Parameters:
__HANDLE__: specifies the I2C Handle.
__FLAG__: specifies the flag to check. This
parameter can be one of the following
values:
I2C_FLAG_TXE Transmit data register
empty
I2C_FLAG_TXIS Transmit interrupt
status
I2C_FLAG_RXNE Receive data
register not empty
I2C_FLAG_ADDR Address matched
(slave mode)
I2C_FLAG_AF Acknowledge failure
received flag
I2C_FLAG_STOPF STOP detection
flag
I2C_FLAG_TC Transfer complete
(master mode)
I2C_FLAG_TCR Transfer complete
reload
I2C_FLAG_BERR Bus error
I2C_FLAG_ARLO Arbitration lost
I2C_FLAG_OVR Overrun/Underrun
I2C_FLAG_PECERR PEC error in
reception
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I2C_FLAG_TIMEOUT Timeout or Tlow
detection flag
I2C_FLAG_ALERT SMBus alert
I2C_FLAG_BUSY Bus busy
I2C_FLAG_DIR Transfer direction
(slave mode)
Return value:
The: new state of __FLAG__ (SET or
RESET).
__HAL_I2C_CLEAR_FLAG
Description:
Clear the I2C pending flags which are
cleared by writing 1 in a specific bit.
Parameters:
__HANDLE__: specifies the I2C Handle.
__FLAG__: specifies the flag to clear. This
parameter can be any combination of the
following values:
I2C_FLAG_TXE Transmit data register
empty
I2C_FLAG_ADDR Address matched
(slave mode)
I2C_FLAG_AF Acknowledge failure
received flag
I2C_FLAG_STOPF STOP detection
flag
I2C_FLAG_BERR Bus error
I2C_FLAG_ARLO Arbitration lost
I2C_FLAG_OVR Overrun/Underrun
I2C_FLAG_PECERR PEC error in
reception
I2C_FLAG_TIMEOUT Timeout or Tlow
detection flag
I2C_FLAG_ALERT SMBus alert
Return value:
None
__HAL_I2C_ENABLE
Description:
Enable the specified I2C peripheral.
Parameters:
__HANDLE__: specifies the I2C Handle.
Return value:
None
__HAL_I2C_DISABLE
Description:
Disable the specified I2C peripheral.
Parameters:
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__HANDLE__: specifies the I2C Handle.
Return value:
None
__HAL_I2C_GENERATE_NACK
Description:
Generate a Non-Acknowledge I2C
peripheral in Slave mode.
Parameters:
__HANDLE__: specifies the I2C Handle.
Return value:
None
I2C Flag definition
I2C_FLAG_TXE
I2C_FLAG_TXIS
I2C_FLAG_RXNE
I2C_FLAG_ADDR
I2C_FLAG_AF
I2C_FLAG_STOPF
I2C_FLAG_TC
I2C_FLAG_TCR
I2C_FLAG_BERR
I2C_FLAG_ARLO
I2C_FLAG_OVR
I2C_FLAG_PECERR
I2C_FLAG_TIMEOUT
I2C_FLAG_ALERT
I2C_FLAG_BUSY
I2C_FLAG_DIR
I2C General Call Addressing Mode
I2C_GENERALCALL_DISABLE
I2C_GENERALCALL_ENABLE
I2C Interrupt configuration definition
I2C_IT_ERRI
I2C_IT_TCI
I2C_IT_STOPI
I2C_IT_NACKI
I2C_IT_ADDRI
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I2C_IT_RXI
I2C_IT_TXI
I2C Memory Address Size
I2C_MEMADD_SIZE_8BIT
I2C_MEMADD_SIZE_16BIT
I2C No-Stretch Mode
I2C_NOSTRETCH_DISABLE
I2C_NOSTRETCH_ENABLE
I2C Own Address2 Masks
I2C_OA2_NOMASK
I2C_OA2_MASK01
I2C_OA2_MASK02
I2C_OA2_MASK03
I2C_OA2_MASK04
I2C_OA2_MASK05
I2C_OA2_MASK06
I2C_OA2_MASK07
I2C Reload End Mode
I2C_RELOAD_MODE
I2C_AUTOEND_MODE
I2C_SOFTEND_MODE
I2C Start or Stop Mode
I2C_NO_STARTSTOP
I2C_GENERATE_STOP
I2C_GENERATE_START_READ
I2C_GENERATE_START_WRITE
I2C Transfer Direction Master Point of View
I2C_DIRECTION_TRANSMIT
I2C_DIRECTION_RECEIVE
I2C Sequential Transfer Options
I2C_FIRST_FRAME
I2C_FIRST_AND_NEXT_FRAME
I2C_NEXT_FRAME
I2C_FIRST_AND_LAST_FRAME
I2C_LAST_FRAME
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25 HAL I2C Extension Driver
25.1 I2CEx Firmware driver API description
25.1.1 I2C peripheral Extended features
Comparing to other previous devices, the I2C interface for STM32L0xx devices contains
the following additional features
Possibility to disable or enable Analog Noise Filter
Use of a configured Digital Noise Filter
Disable or enable wakeup from Stop mode
25.1.2 How to use this driver
This driver provides functions to configure Noise Filter and Wake Up Feature
1. Configure I2C Analog noise filter using the function HAL_I2CEx_ConfigAnalogFilter()
2. Configure I2C Digital noise filter using the function HAL_I2CEx_ConfigDigitalFilter()
3. Configure the enable or disable of I2C Wake Up Mode using the functions :
HAL_I2CEx_EnableWakeUp()
HAL_I2CEx_DisableWakeUp()
4. Configure the enable or disable of fast mode plus driving capability using the functions
:
HAL_I2CEx_EnableFastModePlus()
HAL_I2CEx_DisableFastModePlus()
25.1.3 Extended features functions
This section provides functions allowing to:
Configure Noise Filters
Configure Wake Up Feature
This section contains the following APIs:
HAL_I2CEx_ConfigAnalogFilter()
HAL_I2CEx_ConfigDigitalFilter()
HAL_I2CEx_EnableWakeUp()
HAL_I2CEx_DisableWakeUp()
HAL_I2CEx_EnableFastModePlus()
HAL_I2CEx_DisableFastModePlus()
25.1.4 Detailed description of functions
HAL_I2CEx_ConfigAnalogFilter
Function name
HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter
(I2C_HandleTypeDef * hi2c, uint32_t AnalogFilter)
Function description
Configure I2C Analog noise filter.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2Cx peripheral.
AnalogFilter: New state of the Analog filter.
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Return values
HAL: status
HAL_I2CEx_ConfigDigitalFilter
Function name
HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter
(I2C_HandleTypeDef * hi2c, uint32_t DigitalFilter)
Function description
Configure I2C Digital noise filter.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2Cx peripheral.
DigitalFilter: Coefficient of digital noise filter between
Min_Data=0x00 and Max_Data=0x0F.
Return values
HAL: status
HAL_I2CEx_EnableWakeUp
Function name
HAL_StatusTypeDef HAL_I2CEx_EnableWakeUp
(I2C_HandleTypeDef * hi2c)
Function description
Enable I2C wakeup from stop mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2Cx peripheral.
Return values
HAL: status
HAL_I2CEx_DisableWakeUp
Function name
HAL_StatusTypeDef HAL_I2CEx_DisableWakeUp
(I2C_HandleTypeDef * hi2c)
Function description
Disable I2C wakeup from stop mode.
Parameters
hi2c: Pointer to a I2C_HandleTypeDef structure that contains
the configuration information for the specified I2Cx peripheral.
Return values
HAL: status
HAL_I2CEx_EnableFastModePlus
Function name
void HAL_I2CEx_EnableFastModePlus (uint32_t
ConfigFastModePlus)
Function description
Enable the I2C fast mode plus driving capability.
Parameters
ConfigFastModePlus: Selects the pin. This parameter can
be one of the I2C Extended Fast Mode Plus values
Return values
None
Notes
For I2C1, fast mode plus driving capability can be enabled on
all selected I2C1 pins using I2C_FASTMODEPLUS_I2C1
parameter or independently on each one of the following pins
PB6, PB7, PB8 and PB9.
For remaining I2C1 pins (PA14, PA15...) fast mode plus
driving capability can be enabled only by using
I2C_FASTMODEPLUS_I2C1 parameter.
For all I2C2 pins fast mode plus driving capability can be
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enabled only by using I2C_FASTMODEPLUS_I2C2
parameter.
For all I2C3 pins fast mode plus driving capability can be
enabled only by using I2C_FASTMODEPLUS_I2C3
parameter.
HAL_I2CEx_DisableFastModePlus
Function name
void HAL_I2CEx_DisableFastModePlus (uint32_t
ConfigFastModePlus)
Function description
Disable the I2C fast mode plus driving capability.
Parameters
ConfigFastModePlus: Selects the pin. This parameter can
be one of the I2C Extended Fast Mode Plus values
Return values
None
Notes
For I2C1, fast mode plus driving capability can be disabled on
all selected I2C1 pins using I2C_FASTMODEPLUS_I2C1
parameter or independently on each one of the following pins
PB6, PB7, PB8 and PB9.
For remaining I2C1 pins (PA14, PA15...) fast mode plus
driving capability can be disabled only by using
I2C_FASTMODEPLUS_I2C1 parameter.
For all I2C2 pins fast mode plus driving capability can be
disabled only by using I2C_FASTMODEPLUS_I2C2
parameter.
For all I2C3 pins fast mode plus driving capability can be
disabled only by using I2C_FASTMODEPLUS_I2C3
parameter.
25.2 I2CEx Firmware driver defines
25.2.1 I2CEx
I2C Extended Analog Filter
I2C_ANALOGFILTER_ENABLE
I2C_ANALOGFILTER_DISABLE
I2C Extended Fast Mode Plus
I2C_FMP_NOT_SUPPORTED
Fast Mode Plus not supported
I2C_FASTMODEPLUS_PB6
Enable Fast Mode Plus on PB6
I2C_FASTMODEPLUS_PB7
Enable Fast Mode Plus on PB7
I2C_FASTMODEPLUS_PB8
Enable Fast Mode Plus on PB8
I2C_FASTMODEPLUS_PB9
Enable Fast Mode Plus on PB9
I2C_FASTMODEPLUS_I2C1
Enable Fast Mode Plus on I2C1 pins
I2C_FASTMODEPLUS_I2C2
Enable Fast Mode Plus on I2C2 pins
I2C_FASTMODEPLUS_I2C3
Enable Fast Mode Plus on I2C3 pins
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26 HAL I2S Generic Driver
26.1 I2S Firmware driver registers structures
26.1.1 I2S_InitTypeDef
Data Fields
uint32_t Mode
uint32_t Standard
uint32_t DataFormat
uint32_t MCLKOutput
uint32_t AudioFreq
uint32_t CPOL
Field Documentation
uint32_t I2S_InitTypeDef::Mode
Specifies the I2S operating mode. This parameter can be a value of I2S_Mode
uint32_t I2S_InitTypeDef::Standard
Specifies the standard used for the I2S communication. This parameter can be a
value of I2S_Standard
uint32_t I2S_InitTypeDef::DataFormat
Specifies the data format for the I2S communication. This parameter can be a value of
I2S_Data_Format
uint32_t I2S_InitTypeDef::MCLKOutput
Specifies whether the I2S MCLK output is enabled or not. This parameter can be a
value of I2S_MCLK_Output
uint32_t I2S_InitTypeDef::AudioFreq
Specifies the frequency selected for the I2S communication. This parameter can be a
value of I2S_Audio_Frequency
uint32_t I2S_InitTypeDef::CPOL
Specifies the idle state of the I2S clock. This parameter can be a value of
I2S_Clock_Polarity
26.1.2 I2S_HandleTypeDef
Data Fields
SPI_TypeDef * Instance
I2S_InitTypeDef Init
uint16_t * pTxBuffPtr
__IO uint16_t TxXferSize
__IO uint16_t TxXferCount
uint16_t * pRxBuffPtr
__IO uint16_t RxXferSize
__IO uint16_t RxXferCount
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
__IO HAL_LockTypeDef Lock
__IO HAL_I2S_StateTypeDef State
__IO uint32_t ErrorCode
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Field Documentation
SPI_TypeDef* I2S_HandleTypeDef::Instance
I2S_InitTypeDef I2S_HandleTypeDef::Init
uint16_t* I2S_HandleTypeDef::pTxBuffPtr
__IO uint16_t I2S_HandleTypeDef::TxXferSize
__IO uint16_t I2S_HandleTypeDef::TxXferCount
uint16_t* I2S_HandleTypeDef::pRxBuffPtr
__IO uint16_t I2S_HandleTypeDef::RxXferSize
__IO uint16_t I2S_HandleTypeDef::RxXferCount
DMA_HandleTypeDef* I2S_HandleTypeDef::hdmatx
DMA_HandleTypeDef* I2S_HandleTypeDef::hdmarx
__IO HAL_LockTypeDef I2S_HandleTypeDef::Lock
__IO HAL_I2S_StateTypeDef I2S_HandleTypeDef::State
__IO uint32_t I2S_HandleTypeDef::ErrorCode
26.2 I2S Firmware driver API description
26.2.1 How to use this driver
The I2S HAL driver can be used as follow:
1. Declare a I2S_HandleTypeDef handle structure.
2. Initialize the I2S low level resources by implement the HAL_I2S_MspInit() API:
a. Enable the SPIx interface clock.
b. I2S pins configuration:
Enable the clock for the I2S GPIOs.
Configure these I2S pins as alternate function.
c. NVIC configuration if you need to use interrupt process (HAL_I2S_Transmit_IT()
and HAL_I2S_Receive_IT() APIs).
Configure the I2Sx interrupt priority.
Enable the NVIC I2S IRQ handle.
d. DMA Configuration if you need to use DMA process (HAL_I2S_Transmit_DMA()
and HAL_I2S_Receive_DMA() APIs:
Declare a DMA handle structure for the Tx/Rx Channel.
Enable the DMAx interface clock.
Configure the declared DMA handle structure with the required Tx/Rx
parameters.
Configure the DMA Tx/Rx Channel.
Associate the initilalized DMA handle to the I2S DMA Tx/Rx handle.
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx/Rx Channel.
3. Program the Mode, Standard, Data Format, MCLK Output, Audio frequency and
Polarity using HAL_I2S_Init() function. The specific I2S interrupts (Transmission
complete interrupt, RXNE interrupt and Error Interrupts) will be managed using the
macros __HAL_I2S_ENABLE_IT() and __HAL_I2S_DISABLE_IT() inside the transmit
and receive process. Make sure that either: External clock source is configured after
setting correctly the define constant HSE_VALUE in the stm32l0xx_hal_conf.h file.
4. Three mode of operations are available within this driver :
Polling mode IO operation
Send an amount of data in blocking mode using HAL_I2S_Transmit()
Receive an amount of data in blocking mode using HAL_I2S_Receive()
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Interrupt mode IO operation
Send an amount of data in non blocking mode using HAL_I2S_Transmit_IT()
At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and
user can add his own code by customization of function pointer
HAL_I2S_TxHalfCpltCallback
At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
add his own code by customization of function pointer HAL_I2S_TxCpltCallback
Receive an amount of data in non blocking mode using HAL_I2S_Receive_IT()
At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user
can add his own code by customization of function pointer
HAL_I2S_RxHalfCpltCallback
At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can add
his own code by customization of function pointer HAL_I2S_RxCpltCallback
In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2S_ErrorCallback
DMA mode IO operation
Send an amount of data in non blocking mode (DMA) using
HAL_I2S_Transmit_DMA()
At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and
user can add his own code by customization of function pointer
HAL_I2S_TxHalfCpltCallback
At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
add his own code by customization of function pointer HAL_I2S_TxCpltCallback
Receive an amount of data in non blocking mode (DMA) using
HAL_I2S_Receive_DMA()
At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user
can add his own code by customization of function pointer
HAL_I2S_RxHalfCpltCallback
At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can add
his own code by customization of function pointer HAL_I2S_RxCpltCallback
In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
add his own code by customization of function pointer HAL_I2S_ErrorCallback
Pause the DMA Transfer using HAL_I2S_DMAPause()
Resume the DMA Transfer using HAL_I2S_DMAResume()
Stop the DMA Transfer using HAL_I2S_DMAStop()
I2S HAL driver macros list
Below the list of most used macros in USART HAL driver.
__HAL_I2S_ENABLE: Enable the specified SPI peripheral (in I2S mode)
__HAL_I2S_DISABLE: Disable the specified SPI peripheral (in I2S mode)
__HAL_I2S_ENABLE_IT : Enable the specified I2S interrupts
__HAL_I2S_DISABLE_IT : Disable the specified I2S interrupts
__HAL_I2S_GET_FLAG: Check whether the specified I2S flag is set or not
You can refer to the I2S HAL driver header file for more useful macros
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26.2.2 Initialization and de-initialization functions
This subsection provides a set of functions allowing to initialize and de-initialiaze the I2Sx
peripheral in simplex mode:
User must Implement HAL_I2S_MspInit() function in which he configures all related
peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
Call the function HAL_I2S_Init() to configure the selected device with the selected
configuration:
Mode
Standard
Data Format
MCLK Output
Audio frequency
Polarity
Call the function HAL_I2S_DeInit() to restore the default configuration of the selected
I2Sx periperal.
This section contains the following APIs:
HAL_I2S_Init()
HAL_I2S_DeInit()
HAL_I2S_MspInit()
HAL_I2S_MspDeInit()
26.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the I2S data transfers.
1. There are two modes of transfer:
Blocking mode : The communication is performed in the polling mode. The status
of all data processing is returned by the same function after finishing transfer.
No-Blocking mode : The communication is performed using Interrupts or DMA.
These functions return the status of the transfer startup. The end of the data
processing will be indicated through the dedicated I2S IRQ when using Interrupt
mode or the DMA IRQ when using DMA mode.
2. Blocking mode functions are :
HAL_I2S_Transmit()
HAL_I2S_Receive()
3. No-Blocking mode functions with Interrupt are :
HAL_I2S_Transmit_IT()
HAL_I2S_Receive_IT()
4. No-Blocking mode functions with DMA are :
HAL_I2S_Transmit_DMA()
HAL_I2S_Receive_DMA()
5. A set of Transfer Complete Callbacks are provided in non Blocking mode:
HAL_I2S_TxCpltCallback()
HAL_I2S_RxCpltCallback()
HAL_I2S_ErrorCallback()
This section contains the following APIs:
HAL_I2S_Transmit()
HAL_I2S_Receive()
HAL_I2S_Transmit_IT()
HAL_I2S_Receive_IT()
HAL_I2S_Transmit_DMA()
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HAL_I2S_Receive_DMA()
HAL_I2S_DMAPause()
HAL_I2S_DMAResume()
HAL_I2S_DMAStop()
HAL_I2S_IRQHandler()
HAL_I2S_TxHalfCpltCallback()
HAL_I2S_TxCpltCallback()
HAL_I2S_RxHalfCpltCallback()
HAL_I2S_RxCpltCallback()
HAL_I2S_ErrorCallback()
26.2.4 Peripheral State and Errors functions
This subsection permits to get in run-time the status of the peripheral and the data flow.
This section contains the following APIs:
HAL_I2S_GetState()
HAL_I2S_GetError()
26.2.5 Detailed description of functions
HAL_I2S_Init
Function name
HAL_StatusTypeDef HAL_I2S_Init (I2S_HandleTypeDef * hi2s)
Function description
Initializes the I2S according to the specified parameters in the
I2S_InitTypeDef and create the associated handle.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: status
HAL_I2S_DeInit
Function name
HAL_StatusTypeDef HAL_I2S_DeInit (I2S_HandleTypeDef *
hi2s)
Function description
DeInitializes the I2S peripheral.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: status
HAL_I2S_MspInit
Function name
void HAL_I2S_MspInit (I2S_HandleTypeDef * hi2s)
Function description
I2S MSP Init.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
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HAL_I2S_MspDeInit
Function name
void HAL_I2S_MspDeInit (I2S_HandleTypeDef * hi2s)
Function description
I2S MSP DeInit.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_Transmit
Function name
HAL_StatusTypeDef HAL_I2S_Transmit (I2S_HandleTypeDef *
hi2s, uint16_t * pData, uint16_t Size, uint32_t Timeout)
Function description
Transmit an amount of data in blocking mode.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to data buffer.
Size: number of data sample to be sent:
Timeout: Timeout duration
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
clock de-synchronization between Master and Slave(example:
audio streaming).
This function can use an Audio Frequency up to 48KHz when
I2S Clock Source is 32MHz
HAL_I2S_Receive
Function name
HAL_StatusTypeDef HAL_I2S_Receive (I2S_HandleTypeDef *
hi2s, uint16_t * pData, uint16_t Size, uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to data buffer.
Size: number of data sample to be sent:
Timeout: Timeout duration
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
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clock de-synchronization between Master and Slave(example:
audio streaming).
In I2S Master Receiver mode, just after enabling the
peripheral the clock will be generate in continouse way and as
the I2S is not disabled at the end of the I2S transaction.
This function can use an Audio Frequency up to 44KHz when
I2S Clock Source is 32MHz
HAL_I2S_Transmit_IT
Function name
HAL_StatusTypeDef HAL_I2S_Transmit_IT
(I2S_HandleTypeDef * hi2s, uint16_t * pData, uint16_t Size)
Function description
Transmit an amount of data in non-blocking mode with Interrupt.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to data buffer.
Size: number of data sample to be sent:
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
clock de-synchronization between Master and Slave(example:
audio streaming).
This function can use an Audio Frequency up to 48KHz when
I2S Clock Source is 32MHz
HAL_I2S_Receive_IT
Function name
HAL_StatusTypeDef HAL_I2S_Receive_IT
(I2S_HandleTypeDef * hi2s, uint16_t * pData, uint16_t Size)
Function description
Receive an amount of data in non-blocking mode with Interrupt.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to the Receive data buffer.
Size: number of data sample to be sent:
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
clock de-synchronization between Master and Slave(example:
audio streaming).
It is recommended to use DMA for the I2S receiver to avoid
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de-synchronisation between Master and Slave otherwise the
I2S interrupt should be optimized.
This function can use an Audio Frequency up to 48KHz when
I2S Clock Source is 32MHz
HAL_I2S_IRQHandler
Function name
void HAL_I2S_IRQHandler (I2S_HandleTypeDef * hi2s)
Function description
This function handles I2S interrupt request.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_I2S_Transmit_DMA
(I2S_HandleTypeDef * hi2s, uint16_t * pData, uint16_t Size)
Function description
Transmit an amount of data in non-blocking mode with DMA.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to the Transmit data buffer.
Size: number of data sample to be sent:
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
clock de-synchronization between Master and Slave(example:
audio streaming).
HAL_I2S_Receive_DMA
Function name
HAL_StatusTypeDef HAL_I2S_Receive_DMA
(I2S_HandleTypeDef * hi2s, uint16_t * pData, uint16_t Size)
Function description
Receive an amount of data in non-blocking mode with DMA.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
pData: a 16-bit pointer to the Receive data buffer.
Size: number of data sample to be sent:
Return values
HAL: status
Notes
When a 16-bit data frame or a 16-bit data frame extended is
selected during the I2S configuration phase, the Size
parameter means the number of 16-bit data length in the
transaction and when a 24-bit data frame or a 32-bit data
frame is selected the Size parameter means the number of
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16-bit data length.
The I2S is kept enabled at the end of transaction to avoid the
clock de-synchronization between Master and Slave(example:
audio streaming).
HAL_I2S_DMAPause
Function name
HAL_StatusTypeDef HAL_I2S_DMAPause
(I2S_HandleTypeDef * hi2s)
Function description
Pauses the audio stream playing from the Media.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: status
HAL_I2S_DMAResume
Function name
HAL_StatusTypeDef HAL_I2S_DMAResume
(I2S_HandleTypeDef * hi2s)
Function description
Resumes the audio stream playing from the Media.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: status
HAL_I2S_DMAStop
Function name
HAL_StatusTypeDef HAL_I2S_DMAStop (I2S_HandleTypeDef
* hi2s)
Function description
Stops the audio stream playing from the Media.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: status
HAL_I2S_TxHalfCpltCallback
Function name
void HAL_I2S_TxHalfCpltCallback (I2S_HandleTypeDef * hi2s)
Function description
Tx Transfer Half completed callbacks.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_TxCpltCallback
Function name
void HAL_I2S_TxCpltCallback (I2S_HandleTypeDef * hi2s)
Function description
Tx Transfer completed callbacks.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
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Return values
None
HAL_I2S_RxHalfCpltCallback
Function name
void HAL_I2S_RxHalfCpltCallback (I2S_HandleTypeDef * hi2s)
Function description
Rx Transfer half completed callbacks.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_RxCpltCallback
Function name
void HAL_I2S_RxCpltCallback (I2S_HandleTypeDef * hi2s)
Function description
Rx Transfer completed callbacks.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_ErrorCallback
Function name
void HAL_I2S_ErrorCallback (I2S_HandleTypeDef * hi2s)
Function description
I2S error callbacks.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
None
HAL_I2S_GetState
Function name
HAL_I2S_StateTypeDef HAL_I2S_GetState
(I2S_HandleTypeDef * hi2s)
Function description
Return the I2S state.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
HAL: state
HAL_I2S_GetError
Function name
uint32_t HAL_I2S_GetError (I2S_HandleTypeDef * hi2s)
Function description
Return the I2S error code.
Parameters
hi2s: pointer to a I2S_HandleTypeDef structure that contains
the configuration information for I2S module
Return values
I2S: Error Code
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26.3 I2S Firmware driver defines
26.3.1 I2S
I2S Audio Frequency
I2S_AUDIOFREQ_192K
I2S_AUDIOFREQ_96K
I2S_AUDIOFREQ_48K
I2S_AUDIOFREQ_44K
I2S_AUDIOFREQ_32K
I2S_AUDIOFREQ_22K
I2S_AUDIOFREQ_16K
I2S_AUDIOFREQ_11K
I2S_AUDIOFREQ_8K
I2S_AUDIOFREQ_DEFAULT
I2S Clock Polarity
I2S_CPOL_LOW
I2S_CPOL_HIGH
I2S Data Format
I2S_DATAFORMAT_16B
I2S_DATAFORMAT_16B_EXTENDED
I2S_DATAFORMAT_24B
I2S_DATAFORMAT_32B
I2S Error Code
HAL_I2S_ERROR_NONE
No error
HAL_I2S_ERROR_UDR
I2S Underrun error
HAL_I2S_ERROR_OVR
I2S Overrun error
HAL_I2S_ERROR_FRE
I2S Frame format error
HAL_I2S_ERROR_DMA
DMA transfer error
I2S Exported Macros
__HAL_I2S_RESET_HANDLE_STATE
Description:
Reset I2S handle state.
Parameters:
__HANDLE__: specifies the I2S Handle.
Return value:
None
__HAL_I2S_ENABLE
Description:
Enable the specified SPI peripheral (in I2S
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mode).
Parameters:
__HANDLE__: specifies the I2S Handle.
Return value:
None
__HAL_I2S_DISABLE
Description:
Disable the specified SPI peripheral (in I2S
mode).
Parameters:
__HANDLE__: specifies the I2S Handle.
Return value:
None
__HAL_I2S_ENABLE_IT
Description:
Enable the specified I2S interrupts.
Parameters:
__HANDLE__: specifies the I2S Handle.
__INTERRUPT__: specifies the interrupt
source to enable or disable. This parameter
can be one of the following values:
I2S_IT_TXE: Tx buffer empty interrupt
enable
I2S_IT_RXNE: RX buffer not empty
interrupt enable
I2S_IT_ERR: Error interrupt enable
Return value:
None
__HAL_I2S_DISABLE_IT
Description:
Disable the specified I2S interrupts.
Parameters:
__HANDLE__: specifies the I2S Handle.
__INTERRUPT__: specifies the interrupt
source to enable or disable. This parameter
can be one of the following values:
I2S_IT_TXE: Tx buffer empty interrupt
enable
I2S_IT_RXNE: RX buffer not empty
interrupt enable
I2S_IT_ERR: Error interrupt enable
Return value:
None
__HAL_I2S_GET_IT_SOURCE
Description:
Checks if the specified I2S interrupt source
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is enabled or disabled.
Parameters:
__HANDLE__: specifies the I2S Handle.
This parameter can be I2S where x: 1, 2, or
3 to select the I2S peripheral.
__INTERRUPT__: specifies the I2S
interrupt source to check. This parameter
can be one of the following values:
I2S_IT_TXE: Tx buffer empty interrupt
enable
I2S_IT_RXNE: RX buffer not empty
interrupt enable
I2S_IT_ERR: Error interrupt enable
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_I2S_GET_FLAG
Description:
Checks whether the specified I2S flag is set
or not.
Parameters:
__HANDLE__: specifies the I2S Handle.
__FLAG__: specifies the flag to check. This
parameter can be one of the following
values:
I2S_FLAG_RXNE: Receive buffer not
empty flag
I2S_FLAG_TXE: Transmit buffer empty
flag
I2S_FLAG_UDR: Underrun flag
I2S_FLAG_OVR: Overrun flag
I2S_FLAG_CHSIDE: Channel Side flag
I2S_FLAG_BSY: Busy flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_I2S_CLEAR_OVRFLAG
Description:
Clears the I2S OVR pending flag.
Parameters:
__HANDLE__: specifies the I2S Handle.
Return value:
None
__HAL_I2S_CLEAR_UDRFLAG
Description:
Clears the I2S UDR pending flag.
Parameters:
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__HANDLE__: specifies the I2S Handle.
Return value:
None
I2S Flag definition
I2S_FLAG_TXE
I2S_FLAG_RXNE
I2S_FLAG_UDR
I2S_FLAG_OVR
I2S_FLAG_FRE
I2S_FLAG_CHSIDE
I2S_FLAG_BSY
I2S Interrupt configuration definition
I2S_IT_TXE
I2S_IT_RXNE
I2S_IT_ERR
I2S Legacy
I2S_STANDARD_PHILLIPS
I2S MCLK Output
I2S_MCLKOUTPUT_ENABLE
I2S_MCLKOUTPUT_DISABLE
I2S Mode
I2S_MODE_SLAVE_TX
I2S_MODE_SLAVE_RX
I2S_MODE_MASTER_TX
I2S_MODE_MASTER_RX
I2S Standard
I2S_STANDARD_PHILIPS
I2S_STANDARD_MSB
I2S_STANDARD_LSB
I2S_STANDARD_PCM_SHORT
I2S_STANDARD_PCM_LONG
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27 HAL IRDA Generic Driver
27.1 IRDA Firmware driver registers structures
27.1.1 IRDA_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t WordLength
uint32_t Parity
uint32_t Mode
uint8_t Prescaler
uint16_t PowerMode
Field Documentation
uint32_t IRDA_InitTypeDef::BaudRate
This member configures the IRDA communication baud rate. The baud rate register is
computed using the following formula: Baud Rate Register = ((PCLKx) / ((hirda-
>Init.BaudRate)))
uint32_t IRDA_InitTypeDef::WordLength
Specifies the number of data bits transmitted or received in a frame. This parameter
can be a value of IRDA_Word_Length
uint32_t IRDA_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of IRDA_Parity
Note:When parity is enabled, the computed parity is inserted at the MSB position of
the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the
word length is set to 8 data bits).
uint32_t IRDA_InitTypeDef::Mode
Specifies whether the Receive or Transmit mode is enabled or disabled. This
parameter can be a value of IRDA_Transfer_Mode
uint8_t IRDA_InitTypeDef::Prescaler
Specifies the Prescaler value for dividing the UART/USART source clock to achieve
low-power frequency.
Note:Prescaler value 0 is forbidden
uint16_t IRDA_InitTypeDef::PowerMode
Specifies the IRDA power mode. This parameter can be a value of IRDA_Low_Power
27.1.2 IRDA_HandleTypeDef
Data Fields
USART_TypeDef * Instance
IRDA_InitTypeDef Init
uint8_t * pTxBuffPtr
uint16_t TxXferSize
__IO uint16_t TxXferCount
uint8_t * pRxBuffPtr
uint16_t RxXferSize
__IO uint16_t RxXferCount
uint16_t Mask
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
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HAL_LockTypeDef Lock
__IO HAL_IRDA_StateTypeDef gState
__IO HAL_IRDA_StateTypeDef RxState
__IO uint32_t ErrorCode
Field Documentation
USART_TypeDef* IRDA_HandleTypeDef::Instance
IRDA registers base address
IRDA_InitTypeDef IRDA_HandleTypeDef::Init
IRDA communication parameters
uint8_t* IRDA_HandleTypeDef::pTxBuffPtr
Pointer to IRDA Tx transfer Buffer
uint16_t IRDA_HandleTypeDef::TxXferSize
IRDA Tx Transfer size
__IO uint16_t IRDA_HandleTypeDef::TxXferCount
IRDA Tx Transfer Counter
uint8_t* IRDA_HandleTypeDef::pRxBuffPtr
Pointer to IRDA Rx transfer Buffer
uint16_t IRDA_HandleTypeDef::RxXferSize
IRDA Rx Transfer size
__IO uint16_t IRDA_HandleTypeDef::RxXferCount
IRDA Rx Transfer Counter
uint16_t IRDA_HandleTypeDef::Mask
IRDA RX RDR register mask
DMA_HandleTypeDef* IRDA_HandleTypeDef::hdmatx
IRDA Tx DMA Handle parameters
DMA_HandleTypeDef* IRDA_HandleTypeDef::hdmarx
IRDA Rx DMA Handle parameters
HAL_LockTypeDef IRDA_HandleTypeDef::Lock
Locking object
__IO HAL_IRDA_StateTypeDef IRDA_HandleTypeDef::gState
IRDA state information related to global Handle management and also related to Tx
operations. This parameter can be a value of HAL_IRDA_StateTypeDef
__IO HAL_IRDA_StateTypeDef IRDA_HandleTypeDef::RxState
IRDA state information related to Rx operations. This parameter can be a value of
HAL_IRDA_StateTypeDef
__IO uint32_t IRDA_HandleTypeDef::ErrorCode
IRDA Error code
27.2 IRDA Firmware driver API description
27.2.1 How to use this driver
The IRDA HAL driver can be used as follows:
1. Declare a IRDA_HandleTypeDef handle structure (eg. IRDA_HandleTypeDef hirda).
2. Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API
in setting the associated USART or UART in IRDA mode:
Enable the USARTx/UARTx interface clock.
USARTx/UARTx pins configuration:
Enable the clock for the USARTx/UARTx GPIOs.
Configure these USARTx/UARTx pins (TX as alternate function pull-up, RX
as alternate function Input).
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NVIC configuration if you need to use interrupt process
(HAL_IRDA_Transmit_IT() and HAL_IRDA_Receive_IT() APIs):
Configure the USARTx/UARTx interrupt priority.
Enable the NVIC USARTx/UARTx IRQ handle.
The specific IRDA interrupts (Transmission complete interrupt, RXNE
interrupt and Error Interrupts) will be managed using the macros
__HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the
transmit and receive process.
DMA Configuration if you need to use DMA process
(HAL_IRDA_Transmit_DMA() and HAL_IRDA_Receive_DMA() APIs):
Declare a DMA handle structure for the Tx/Rx channel.
Enable the DMAx interface clock.
Configure the declared DMA handle structure with the required Tx/Rx
parameters.
Configure the DMA Tx/Rx channel.
Associate the initialized DMA handle to the IRDA DMA Tx/Rx handle.
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx/Rx channel.
3. Program the Baud Rate, Word Length and Parity and Mode(Receiver/Transmitter), the
normal or low power mode and the clock prescaler in the hirda handle Init structure.
4. Initialize the IRDA registers by calling the HAL_IRDA_Init() API:
This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
by calling the customized HAL_IRDA_MspInit() API. The specific IRDA interrupts
(Transmission complete interrupt, RXNE interrupt and Error Interrupts) will be
managed using the macros __HAL_IRDA_ENABLE_IT() and
__HAL_IRDA_DISABLE_IT() inside the transmit and receive process.
5. Three operation modes are available within this driver :
Polling mode IO operation
Send an amount of data in blocking mode using HAL_IRDA_Transmit()
Receive an amount of data in blocking mode using HAL_IRDA_Receive()
Interrupt mode IO operation
Send an amount of data in non-blocking mode using HAL_IRDA_Transmit_IT()
At transmission end of transfer HAL_IRDA_TxCpltCallback() is executed and user can
add his own code by customization of function pointer HAL_IRDA_TxCpltCallback()
Receive an amount of data in non-blocking mode using HAL_IRDA_Receive_IT()
At reception end of transfer HAL_IRDA_RxCpltCallback() is executed and user can
add his own code by customization of function pointer HAL_IRDA_RxCpltCallback()
In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user
can add his own code by customization of function pointer HAL_IRDA_ErrorCallback()
DMA mode IO operation
Send an amount of data in non-blocking mode (DMA) using
HAL_IRDA_Transmit_DMA()
At transmission half of transfer HAL_IRDA_TxHalfCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_IRDA_TxHalfCpltCallback()
At transmission end of transfer HAL_IRDA_TxCpltCallback() is executed and user can
add his own code by customization of function pointer HAL_IRDA_TxCpltCallback()
Receive an amount of data in non-blocking mode (DMA) using
HAL_IRDA_Receive_DMA()
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At reception half of transfer HAL_IRDA_RxHalfCpltCallback() is executed and user
can add his own code by customization of function pointer
HAL_IRDA_RxHalfCpltCallback()
At reception end of transfer HAL_IRDA_RxCpltCallback() is executed and user can
add his own code by customization of function pointer HAL_IRDA_RxCpltCallback()
In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user
can add his own code by customization of function pointer HAL_IRDA_ErrorCallback()
IRDA HAL driver macros list
Below the list of most used macros in IRDA HAL driver.
__HAL_IRDA_ENABLE: Enable the IRDA peripheral
__HAL_IRDA_DISABLE: Disable the IRDA peripheral
__HAL_IRDA_GET_FLAG : Check whether the specified IRDA flag is set or not
__HAL_IRDA_CLEAR_FLAG : Clear the specified IRDA pending flag
__HAL_IRDA_ENABLE_IT: Enable the specified IRDA interrupt
__HAL_IRDA_DISABLE_IT: Disable the specified IRDA interrupt
__HAL_IRDA_GET_IT_SOURCE: Check whether or not the specified IRDA interrupt
is enabled
You can refer to the IRDA HAL driver header file for more useful macros
27.2.2 Initialization and Configuration functions
This subsection provides a set of functions allowing to initialize the USARTx in
asynchronous IRDA mode.
For the asynchronous mode only these parameters can be configured:
Baud Rate
Word Length
Parity: If the parity is enabled, then the MSB bit of the data written in the data
register is transmitted but is changed by the parity bit.
Power mode
Prescaler setting
Receiver/transmitter modes
The HAL_IRDA_Init() API follows the USART asynchronous configuration procedures
(details for the procedures are available in reference manual).
This section contains the following APIs:
HAL_IRDA_Init()
HAL_IRDA_DeInit()
HAL_IRDA_MspInit()
HAL_IRDA_MspDeInit()
27.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the IRDA data transfers.
IrDA is a half duplex communication protocol. If the Transmitter is busy, any data on the
IrDA receive line will be ignored by the IrDA decoder and if the Receiver is busy, data on
the TX from the USART to IrDA will not be encoded by IrDA. While receiving data,
transmission should be avoided as the data to be transmitted could be corrupted.
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1. There are two mode of transfer:
Blocking mode: the communication is performed in polling mode. The HAL status
of all data processing is returned by the same function after finishing transfer.
Non-Blocking mode: the communication is performed using Interrupts or DMA,
these API's return the HAL status. The end of the data processing will be
indicated through the dedicated IRDA IRQ when using Interrupt mode or the
DMA IRQ when using DMA mode. The HAL_IRDA_TxCpltCallback(),
HAL_IRDA_RxCpltCallback() user callbacks will be executed respectively at the
end of the Transmit or Receive process The HAL_IRDA_ErrorCallback() user
callback will be executed when a communication error is detected
2. Blocking mode APIs are :
HAL_IRDA_Transmit()
HAL_IRDA_Receive()
3. Non Blocking mode APIs with Interrupt are :
HAL_IRDA_Transmit_IT()
HAL_IRDA_Receive_IT()
HAL_IRDA_IRQHandler()
4. Non Blocking mode functions with DMA are :
HAL_IRDA_Transmit_DMA()
HAL_IRDA_Receive_DMA()
HAL_IRDA_DMAPause()
HAL_IRDA_DMAResume()
HAL_IRDA_DMAStop()
5. A set of Transfer Complete Callbacks are provided in Non Blocking mode:
HAL_IRDA_TxHalfCpltCallback()
HAL_IRDA_TxCpltCallback()
HAL_IRDA_RxHalfCpltCallback()
HAL_IRDA_RxCpltCallback()
HAL_IRDA_ErrorCallback()
6. Non-Blocking mode transfers could be aborted using Abort API's : (+)
HAL_IRDA_Abort() (+) HAL_IRDA_AbortTransmit() (+) HAL_IRDA_AbortReceive() (+)
HAL_IRDA_Abort_IT() (+) HAL_IRDA_AbortTransmit_IT() (+)
HAL_IRDA_AbortReceive_IT()
7. For Abort services based on interrupts (HAL_IRDA_Abortxxx_IT), a set of Abort
Complete Callbacks are provided: (+) HAL_IRDA_AbortCpltCallback() (+)
HAL_IRDA_AbortTransmitCpltCallback() (+) HAL_IRDA_AbortReceiveCpltCallback()
8. In Non-Blocking mode transfers, possible errors are split into 2 categories. Errors are
handled as follows : (+) Error is considered as Recoverable and non blocking :
Transfer could go till end, but error severity is to be evaluated by user : this concerns
Frame Error, Parity Error or Noise Error in Interrupt mode reception . Received
character is then retrieved and stored in Rx buffer, Error code is set to allow user to
identify error type, and HAL_IRDA_ErrorCallback() user callback is executed. Transfer
is kept ongoing on IRDA side. If user wants to abort it, Abort services should be called
by user. (+) Error is considered as Blocking : Transfer could not be completed properly
and is aborted. This concerns Overrun Error In Interrupt mode reception and all errors
in DMA mode. Error code is set to allow user to identify error type, and
HAL_IRDA_ErrorCallback() user callback is executed.
IrDA is a half duplex communication protocol. If the Transmitter is busy, any data on the
IrDA receive line will be ignored by the IrDA decoder and if the Receiver is busy, data on
the TX from the USART to IrDA will not be encoded by IrDA. While receiving data,
transmission should be avoided as the data to be transmitted could be corrupted. (#) There
are two mode of transfer: (++) Blocking mode: the communication is performed in polling
mode. The HAL status of all data processing is returned by the same function after finishing
transfer. (++) Non-Blocking mode: the communication is performed using Interrupts or
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DMA, these API's return the HAL status. The end of the data processing will be indicated
through the dedicated IRDA IRQ when using Interrupt mode or the DMA IRQ when using
DMA mode. The HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxCpltCallback() user
callbacks will be executed respectively at the end of the Transmit or Receive process The
HAL_IRDA_ErrorCallback() user callback will be executed when a communication error is
detected (#) Blocking mode APIs are : (++) HAL_IRDA_Transmit() (++)
HAL_IRDA_Receive() (#) Non Blocking mode APIs with Interrupt are : (++)
HAL_IRDA_Transmit_IT() (++) HAL_IRDA_Receive_IT() (++) HAL_IRDA_IRQHandler() (#)
Non Blocking mode functions with DMA are : (++) HAL_IRDA_Transmit_DMA() (++)
HAL_IRDA_Receive_DMA() (++) HAL_IRDA_DMAPause() (++)
HAL_IRDA_DMAResume() (++) HAL_IRDA_DMAStop() (#) A set of Transfer Complete
Callbacks are provided in Non Blocking mode: (++) HAL_IRDA_TxHalfCpltCallback() (++)
HAL_IRDA_TxCpltCallback() (++) HAL_IRDA_RxHalfCpltCallback() (++)
HAL_IRDA_RxCpltCallback() (++) HAL_IRDA_ErrorCallback() (#) Non-Blocking mode
transfers could be aborted using Abort API's :
HAL_IRDA_Abort()
HAL_IRDA_AbortTransmit()
HAL_IRDA_AbortReceive()
HAL_IRDA_Abort_IT()
HAL_IRDA_AbortTransmit_IT()
HAL_IRDA_AbortReceive_IT() (#) For Abort services based on interrupts
(HAL_IRDA_Abortxxx_IT), a set of Abort Complete Callbacks are provided:
HAL_IRDA_AbortCpltCallback()
HAL_IRDA_AbortTransmitCpltCallback()
HAL_IRDA_AbortReceiveCpltCallback() (#) In Non-Blocking mode transfers, possible
errors are split into 2 categories. Errors are handled as follows :
Error is considered as Recoverable and non blocking : Transfer could go till end, but
error severity is to be evaluated by user : this concerns Frame Error, Parity Error or
Noise Error in Interrupt mode reception . Received character is then retrieved and
stored in Rx buffer, Error code is set to allow user to identify error type, and
HAL_IRDA_ErrorCallback() user callback is executed. Transfer is kept ongoing on
IRDA side. If user wants to abort it, Abort services should be called by user.
Error is considered as Blocking : Transfer could not be completed properly and is
aborted. This concerns Overrun Error In Interrupt mode reception and all errors in
DMA mode. Error code is set to allow user to identify error type, and
HAL_IRDA_ErrorCallback() user callback is executed.
This section contains the following APIs:
HAL_IRDA_Transmit()
HAL_IRDA_Receive()
HAL_IRDA_Transmit_IT()
HAL_IRDA_Receive_IT()
HAL_IRDA_Transmit_DMA()
HAL_IRDA_Receive_DMA()
HAL_IRDA_DMAPause()
HAL_IRDA_DMAResume()
HAL_IRDA_DMAStop()
HAL_IRDA_Abort()
HAL_IRDA_AbortTransmit()
HAL_IRDA_AbortReceive()
HAL_IRDA_Abort_IT()
HAL_IRDA_AbortTransmit_IT()
HAL_IRDA_AbortReceive_IT()
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HAL_IRDA_IRQHandler()
HAL_IRDA_TxCpltCallback()
HAL_IRDA_TxHalfCpltCallback()
HAL_IRDA_RxCpltCallback()
HAL_IRDA_RxHalfCpltCallback()
HAL_IRDA_ErrorCallback()
HAL_IRDA_AbortCpltCallback()
HAL_IRDA_AbortTransmitCpltCallback()
HAL_IRDA_AbortReceiveCpltCallback()
27.2.4 Peripheral State and Error functions
This subsection provides a set of functions allowing to return the State of IrDA
communication process and also return Peripheral Errors occurred during communication
process
HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IRDA
peripheral handle.
HAL_IRDA_GetError() checks in run-time errors that could occur during
communication.
This section contains the following APIs:
HAL_IRDA_GetState()
HAL_IRDA_GetError()
27.2.5 Detailed description of functions
HAL_IRDA_Init
Function name
HAL_StatusTypeDef HAL_IRDA_Init (IRDA_HandleTypeDef *
hirda)
Function description
Initialize the IRDA mode according to the specified parameters in
the IRDA_InitTypeDef and initialize the associated handle.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
HAL: status
HAL_IRDA_DeInit
Function name
HAL_StatusTypeDef HAL_IRDA_DeInit (IRDA_HandleTypeDef
* hirda)
Function description
DeInitialize the IRDA peripheral.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
HAL: status
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HAL_IRDA_MspInit
Function name
void HAL_IRDA_MspInit (IRDA_HandleTypeDef * hirda)
Function description
Initialize the IRDA MSP.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_MspDeInit
Function name
void HAL_IRDA_MspDeInit (IRDA_HandleTypeDef * hirda)
Function description
DeInitialize the IRDA MSP.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_Transmit
Function name
HAL_StatusTypeDef HAL_IRDA_Transmit
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Send an amount of data in blocking mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
pData: Pointer to data buffer.
Size: Amount of data to be sent.
Timeout: Specify timeout value.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_Receive
Function name
HAL_StatusTypeDef HAL_IRDA_Receive
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
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contains the configuration information for the specified IRDA
module.
pData: Pointer to data buffer.
Size: Amount of data to be received.
Timeout: Specify timeout value.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_Transmit_IT
Function name
HAL_StatusTypeDef HAL_IRDA_Transmit_IT
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size)
Function description
Send an amount of data in interrupt mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
pData: Pointer to data buffer.
Size: Amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_Receive_IT
Function name
HAL_StatusTypeDef HAL_IRDA_Receive_IT
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in interrupt mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
pData: Pointer to data buffer.
Size: Amount of data to be received.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
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specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_IRDA_Transmit_DMA
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size)
Function description
Send an amount of data in DMA mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
pData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_Receive_DMA
Function name
HAL_StatusTypeDef HAL_IRDA_Receive_DMA
(IRDA_HandleTypeDef * hirda, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in DMA mode.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
pData: Pointer to data buffer.
Size: Amount of data to be received.
Return values
HAL: status
Notes
When the IRDA parity is enabled (PCE = 1), the received data
contains the parity bit (MSB position).
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_IRDA_DMAPause
Function name
HAL_StatusTypeDef HAL_IRDA_DMAPause
(IRDA_HandleTypeDef * hirda)
Function description
Pause the DMA Transfer.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
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contains the configuration information for the specified IRDA
module.
Return values
HAL: status
HAL_IRDA_DMAResume
Function name
HAL_StatusTypeDef HAL_IRDA_DMAResume
(IRDA_HandleTypeDef * hirda)
Function description
Resume the DMA Transfer.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
HAL_IRDA_DMAStop
Function name
HAL_StatusTypeDef HAL_IRDA_DMAStop
(IRDA_HandleTypeDef * hirda)
Function description
Stop the DMA Transfer.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
HAL_IRDA_Abort
Function name
HAL_StatusTypeDef HAL_IRDA_Abort (IRDA_HandleTypeDef
* hirda)
Function description
Abort ongoing transfers (blocking mode).
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_IRDA_AbortTransmit
Function name
HAL_StatusTypeDef HAL_IRDA_AbortTransmit
(IRDA_HandleTypeDef * hirda)
Function description
Abort ongoing Transmit transfer (blocking mode).
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Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts
(Tx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_IRDA_AbortReceive
Function name
HAL_StatusTypeDef HAL_IRDA_AbortReceive
(IRDA_HandleTypeDef * hirda)
Function description
Abort ongoing Receive transfer (blocking mode).
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts
(Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_IRDA_Abort_IT
Function name
HAL_StatusTypeDef HAL_IRDA_Abort_IT
(IRDA_HandleTypeDef * hirda)
Function description
Abort ongoing transfers (Interrupt mode).
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
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user abort complete callback is executed (not when exiting
function).
HAL_IRDA_AbortTransmit_IT
Function name
HAL_StatusTypeDef HAL_IRDA_AbortTransmit_IT
(IRDA_HandleTypeDef * hirda)
Function description
Abort ongoing Transmit transfer (Interrupt mode).
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts
(Tx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_IRDA_AbortReceive_IT
Function name
HAL_StatusTypeDef HAL_IRDA_AbortReceive_IT
(IRDA_HandleTypeDef * hirda)
Function description
Abort ongoing Receive transfer (Interrupt mode).
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified UART
module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable IRDA Interrupts
(Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_IRDA_IRQHandler
Function name
void HAL_IRDA_IRQHandler (IRDA_HandleTypeDef * hirda)
Function description
Handle IRDA interrupt request.
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Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_TxCpltCallback
Function name
void HAL_IRDA_TxCpltCallback (IRDA_HandleTypeDef *
hirda)
Function description
Tx Transfer completed callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_RxCpltCallback
Function name
void HAL_IRDA_RxCpltCallback (IRDA_HandleTypeDef *
hirda)
Function description
Rx Transfer completed callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_TxHalfCpltCallback
Function name
void HAL_IRDA_TxHalfCpltCallback (IRDA_HandleTypeDef *
hirda)
Function description
Tx Half Transfer completed callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified
USART module.
Return values
None
HAL_IRDA_RxHalfCpltCallback
Function name
void HAL_IRDA_RxHalfCpltCallback (IRDA_HandleTypeDef *
hirda)
Function description
Rx Half Transfer complete callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
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HAL_IRDA_ErrorCallback
Function name
void HAL_IRDA_ErrorCallback (IRDA_HandleTypeDef * hirda)
Function description
IRDA error callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_AbortCpltCallback
Function name
void HAL_IRDA_AbortCpltCallback (IRDA_HandleTypeDef *
hirda)
Function description
IRDA Abort Complete callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_AbortTransmitCpltCallback
Function name
void HAL_IRDA_AbortTransmitCpltCallback
(IRDA_HandleTypeDef * hirda)
Function description
IRDA Abort Complete callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_AbortReceiveCpltCallback
Function name
void HAL_IRDA_AbortReceiveCpltCallback
(IRDA_HandleTypeDef * hirda)
Function description
IRDA Abort Receive Complete callback.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
None
HAL_IRDA_GetState
Function name
HAL_IRDA_StateTypeDef HAL_IRDA_GetState
(IRDA_HandleTypeDef * hirda)
Function description
Return the IRDA handle state.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
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Return values
HAL: state
HAL_IRDA_GetError
Function name
uint32_t HAL_IRDA_GetError (IRDA_HandleTypeDef * hirda)
Function description
Return the IRDA handle error code.
Parameters
hirda: Pointer to a IRDA_HandleTypeDef structure that
contains the configuration information for the specified IRDA
module.
Return values
IRDA: Error Code
27.3 IRDA Firmware driver defines
27.3.1 IRDA
IRDA DMA Rx
IRDA_DMA_RX_DISABLE
IRDA DMA RX disabled
IRDA_DMA_RX_ENABLE
IRDA DMA RX enabled
IRDA DMA Tx
IRDA_DMA_TX_DISABLE
IRDA DMA TX disabled
IRDA_DMA_TX_ENABLE
IRDA DMA TX enabled
IRDA Exported Macros
__HAL_IRDA_RESET_HANDLE_STA
TE
Description:
Reset IRDA handle state.
Parameters:
__HANDLE__: IRDA handle.
Return value:
None
__HAL_IRDA_FLUSH_DRREGISTER
Description:
Flush the IRDA DR register.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_CLEAR_FLAG
Description:
Clear the specified IRDA pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__FLAG__: specifies the flag to check. This
parameter can be any combination of the
following values:
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IRDA_CLEAR_PEF
IRDA_CLEAR_FEF
IRDA_CLEAR_NEF
IRDA_CLEAR_OREF
IRDA_CLEAR_TCF
IRDA_CLEAR_IDLEF
Return value:
None
__HAL_IRDA_CLEAR_PEFLAG
Description:
Clear the IRDA PE pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_CLEAR_FEFLAG
Description:
Clear the IRDA FE pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_CLEAR_NEFLAG
Description:
Clear the IRDA NE pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_CLEAR_OREFLAG
Description:
Clear the IRDA ORE pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_CLEAR_IDLEFLAG
Description:
Clear the IRDA IDLE pending flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
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None
__HAL_IRDA_GET_FLAG
Description:
Check whether the specified IRDA flag is
set or not.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__FLAG__: specifies the flag to check. This
parameter can be one of the following
values:
IRDA_FLAG_REACK Receive enable
acknowledge flag
IRDA_FLAG_TEACK Transmit enable
acknowledge flag
IRDA_FLAG_BUSY Busy flag
IRDA_FLAG_ABRF Auto Baud rate
detection flag
IRDA_FLAG_ABRE Auto Baud rate
detection error flag
IRDA_FLAG_TXE Transmit data
register empty flag
IRDA_FLAG_TC Transmission
Complete flag
IRDA_FLAG_RXNE Receive data
register not empty flag
IRDA_FLAG_ORE OverRun Error flag
IRDA_FLAG_NE Noise Error flag
IRDA_FLAG_FE Framing Error flag
IRDA_FLAG_PE Parity Error flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_IRDA_ENABLE_IT
Description:
Enable the specified IRDA interrupt.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__INTERRUPT__: specifies the IRDA
interrupt source to enable. This parameter
can be one of the following values:
IRDA_IT_TXE Transmit Data Register
empty interrupt
IRDA_IT_TC Transmission complete
interrupt
IRDA_IT_RXNE Receive Data register
not empty interrupt
IRDA_IT_IDLE Idle line detection
interrupt
IRDA_IT_PE Parity Error interrupt
IRDA_IT_ERR Error interrupt(Frame
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error, noise error, overrun error)
Return value:
None
__HAL_IRDA_DISABLE_IT
Description:
Disable the specified IRDA interrupt.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__INTERRUPT__: specifies the IRDA
interrupt source to disable. This parameter
can be one of the following values:
IRDA_IT_TXE Transmit Data Register
empty interrupt
IRDA_IT_TC Transmission complete
interrupt
IRDA_IT_RXNE Receive Data register
not empty interrupt
IRDA_IT_IDLE Idle line detection
interrupt
IRDA_IT_PE Parity Error interrupt
IRDA_IT_ERR Error interrupt(Frame
error, noise error, overrun error)
Return value:
None
__HAL_IRDA_GET_IT
Description:
Check whether the specified IRDA interrupt
has occurred or not.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__IT__: specifies the IRDA interrupt source
to check. This parameter can be one of the
following values:
IRDA_IT_TXE Transmit Data Register
empty interrupt
IRDA_IT_TC Transmission complete
interrupt
IRDA_IT_RXNE Receive Data register
not empty interrupt
IRDA_IT_IDLE Idle line detection
interrupt
IRDA_IT_ORE OverRun Error interrupt
IRDA_IT_NE Noise Error interrupt
IRDA_IT_FE Framing Error interrupt
IRDA_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_IRDA_GET_IT_SOURCE
Description:
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Check whether the specified IRDA interrupt
source is enabled or not.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__IT__: specifies the IRDA interrupt source
to check. This parameter can be one of the
following values:
IRDA_IT_TXE Transmit Data Register
empty interrupt
IRDA_IT_TC Transmission complete
interrupt
IRDA_IT_RXNE Receive Data register
not empty interrupt
IRDA_IT_IDLE Idle line detection
interrupt
IRDA_IT_ERR Framing, overrun or
noise error interrupt
IRDA_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_IRDA_CLEAR_IT
Description:
Clear the specified IRDA ISR flag, in setting
the proper ICR register flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__IT_CLEAR__: specifies the interrupt clear
register flag that needs to be set to clear the
corresponding interrupt This parameter can
be one of the following values:
IRDA_CLEAR_PEF Parity Error Clear
Flag
IRDA_CLEAR_FEF Framing Error
Clear Flag
IRDA_CLEAR_NEF Noise detected
Clear Flag
IRDA_CLEAR_OREF OverRun Error
Clear Flag
IRDA_CLEAR_TCF Transmission
Complete Clear Flag
Return value:
None
__HAL_IRDA_SEND_REQ
Description:
Set a specific IRDA request flag.
Parameters:
__HANDLE__: specifies the IRDA Handle.
__REQ__: specifies the request flag to set
This parameter can be one of the following
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values:
IRDA_AUTOBAUD_REQUEST Auto-
Baud Rate Request
IRDA_RXDATA_FLUSH_REQUEST
Receive Data flush Request
IRDA_TXDATA_FLUSH_REQUEST
Transmit data flush Request
Return value:
None
__HAL_IRDA_ONE_BIT_SAMPLE_
ENABLE
Description:
Enable the IRDA one bit sample method.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_ONE_BIT_SAMPLE_
DISABLE
Description:
Disable the IRDA one bit sample method.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_ENABLE
Description:
Enable UART/USART associated to IRDA
Handle.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
__HAL_IRDA_DISABLE
Description:
Disable UART/USART associated to IRDA
Handle.
Parameters:
__HANDLE__: specifies the IRDA Handle.
Return value:
None
IRDA Exported Types
HAL_IRDA_ERROR_NONE
No error
HAL_IRDA_ERROR_PE
Parity error
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HAL_IRDA_ERROR_NE
Noise error
HAL_IRDA_ERROR_FE
frame error
HAL_IRDA_ERROR_ORE
Overrun error
HAL_IRDA_ERROR_DMA
DMA transfer error
IRDA Flags
IRDA_FLAG_REACK
IRDA Receive enable acknowledge flag
IRDA_FLAG_TEACK
IRDA Transmit enable acknowledge flag
IRDA_FLAG_BUSY
IRDA Busy flag
IRDA_FLAG_ABRF
IRDA Auto baud rate flag
IRDA_FLAG_ABRE
IRDA Auto baud rate error
IRDA_FLAG_TXE
IRDA Transmit data register empty
IRDA_FLAG_TC
IRDA Transmission complete
IRDA_FLAG_RXNE
IRDA Read data register not empty
IRDA_FLAG_ORE
IRDA Overrun error
IRDA_FLAG_NE
IRDA Noise error
IRDA_FLAG_FE
IRDA Framing error
IRDA_FLAG_PE
IRDA Parity error
IRDA interruptions flags mask
IRDA_IT_MASK
IRDA Interruptions flags mask
IRDA Interrupts Definition
IRDA_IT_PE
IRDA Parity error interruption
IRDA_IT_TXE
IRDA Transmit data register empty interruption
IRDA_IT_TC
IRDA Transmission complete interruption
IRDA_IT_RXNE
IRDA Read data register not empty interruption
IRDA_IT_IDLE
IRDA Idle interruption
IRDA_IT_ERR
IRDA_IT_ORE
IRDA_IT_NE
IRDA Noise error interruption
IRDA_IT_FE
IRDA Frame error interruption
IRDA Interruption Clear Flags
IRDA_CLEAR_PEF
Parity Error Clear Flag
IRDA_CLEAR_FEF
Framing Error Clear Flag
IRDA_CLEAR_NEF
Noise detected Clear Flag
IRDA_CLEAR_OREF
OverRun Error Clear Flag
IRDA_CLEAR_IDLEF
IDLE line detected Clear Flag
IRDA_CLEAR_TCF
Transmission Complete Clear Flag
IRDA Low Power
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IRDA_POWERMODE_NORMAL
IRDA normal power mode
IRDA_POWERMODE_LOWPOWER
IRDA low power mode
IRDA Mode
IRDA_MODE_DISABLE
Associated UART disabled in IRDA mode
IRDA_MODE_ENABLE
Associated UART enabled in IRDA mode
IRDA One Bit Sampling
IRDA_ONE_BIT_SAMPLE_DISABLE
One-bit sampling disabled
IRDA_ONE_BIT_SAMPLE_ENABLE
One-bit sampling enabled
IRDA Parity
IRDA_PARITY_NONE
No parity
IRDA_PARITY_EVEN
Even parity
IRDA_PARITY_ODD
Odd parity
IRDA Request Parameters
IRDA_AUTOBAUD_REQUEST
Auto-Baud Rate Request
IRDA_RXDATA_FLUSH_REQUEST
Receive Data flush Request
IRDA_TXDATA_FLUSH_REQUEST
Transmit data flush Request
IRDA State
IRDA_STATE_DISABLE
IRDA disabled
IRDA_STATE_ENABLE
IRDA enabled
IRDA Transfer Mode
IRDA_MODE_RX
RX mode
IRDA_MODE_TX
TX mode
IRDA_MODE_TX_RX
RX and TX mode
IRDA Word Length
IRDA_WORDLENGTH_7B
7-bit long frame
IRDA_WORDLENGTH_8B
8-bit long frame
IRDA_WORDLENGTH_9B
9-bit long frame
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28 HAL IRDA Extension Driver
28.1 IRDAEx Firmware driver defines
28.1.1 IRDAEx
IRDAEx Exported Macros
IRDA_GETCLOCKSOURCE
Description:
Reports the IRDA clock source.
Parameters:
__HANDLE__: specifies the UART Handle
__CLOCKSOURCE__: : output variable
Return value:
IRDA: clocking source, written in
__CLOCKSOURCE__.
IRDA_MASK_COMPUTATION
Description:
Reports the mask to apply to retrieve the received
data according to the word length and to the parity
bits activation.
Parameters:
__HANDLE__: specifies the IRDA Handle
Return value:
mask: to apply to USART RDR register value.
IRDAEx Word length
IRDA_WORDLENGTH_7B
IRDA_WORDLENGTH_8B
IRDA_WORDLENGTH_9B
IS_IRDA_WORD_LENGTH
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29 HAL IWDG Generic Driver
29.1 IWDG Firmware driver registers structures
29.1.1 IWDG_InitTypeDef
Data Fields
uint32_t Prescaler
uint32_t Reload
uint32_t Window
Field Documentation
uint32_t IWDG_InitTypeDef::Prescaler
Select the prescaler of the IWDG. This parameter can be a value of IWDG_Prescaler
uint32_t IWDG_InitTypeDef::Reload
Specifies the IWDG down-counter reload value. This parameter must be a number
between Min_Data = 0 and Max_Data = 0x0FFF
uint32_t IWDG_InitTypeDef::Window
Specifies the window value to be compared to the down-counter. This parameter must
be a number between Min_Data = 0 and Max_Data = 0x0FFF
29.1.2 IWDG_HandleTypeDef
Data Fields
IWDG_TypeDef * Instance
IWDG_InitTypeDef Init
Field Documentation
IWDG_TypeDef* IWDG_HandleTypeDef::Instance
Register base address
IWDG_InitTypeDef IWDG_HandleTypeDef::Init
IWDG required parameters
29.2 IWDG Firmware driver API description
29.2.1 IWDG Generic features
The IWDG can be started by either software or hardware (configurable through option
byte).
The IWDG is clocked by Low-Speed clock (LSI) and thus stays active even if the main
clock fails.
Once the IWDG is started, the LSI is forced ON and both can not be disabled. The
counter starts counting down from the reset value (0xFFF). When it reaches the end of
count value (0x000) a reset signal is generated (IWDG reset).
Whenever the key value 0x0000 AAAA is written in the IWDG_KR register, the
IWDG_RLR value is reloaded in the counter and the watchdog reset is prevented.
The IWDG is implemented in the VDD voltage domain that is still functional in STOP
and STANDBY mode (IWDG reset can wake-up from STANDBY). IWDGRST flag in
RCC_CSR register can be used to inform when an IWDG reset occurs.
Debug mode : When the microcontroller enters debug mode (core halted), the IWDG
counter either continues to work normally or stops, depending on DBG_IWDG_STOP
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configuration bit in DBG module, accessible through
__HAL_DBGMCU_FREEZE_IWDG() and __HAL_DBGMCU_UNFREEZE_IWDG()
macros
Min-max timeout value @32KHz (LSI): ~0.512ms / ~32.0s The IWDG timeout may vary
due to LSI frequency dispersion. STM32L0xx devices provide the capability to measure the
LSI frequency (LSI clock connected internally to TIM5 CH4 input capture). The measured
value can be used to have an IWDG timeout with an acceptable accuracy.
29.2.2 How to use this driver
1. Use IWDG using HAL_IWDG_Init() function to :
Enable instance by writing Start keyword in IWDG_KEY register. LSI clock is
forced ON and IWDG counter starts downcounting.
Enable write access to configuration register: IWDG_PR, IWDG_RLR &
IWDG_WINR.
Configure the IWDG prescaler and counter reload value. This reload value will be
loaded in the IWDG counter each time the watchdog is reloaded, then the IWDG
will start counting down from this value.
Wait for status flags to be reset
Depending on window parameter:
If Window Init parameter is same as Window register value, nothing more is
done but reload counter value in order to exit function withy exact timebase.
Else modify Window register. This will automatically reload watchdog
counter.
2. Then the application program must refresh the IWDG counter at regular intervals
during normal operation to prevent an MCU reset, using HAL_IWDG_Refresh()
function.
IWDG HAL driver macros list
Below the list of most used macros in IWDG HAL driver:
__HAL_IWDG_START: Enable the IWDG peripheral
__HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in
the reload register
29.2.3 Initialization and Start functions
This section provides functions allowing to:
Initialize the IWDG according to the specified parameters in the IWDG_InitTypeDef of
associated handle.
Manage Window option.
Once initialization is performed in HAL_IWDG_Init function, Watchdog is reloaded in
order to exit function with correct timebase.
This section contains the following APIs:
HAL_IWDG_Init()
29.2.4 IO operation functions
This section provides functions allowing to:
Refresh the IWDG.
This section contains the following APIs:
HAL_IWDG_Refresh()
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29.2.5 Detailed description of functions
HAL_IWDG_Init
Function name
HAL_StatusTypeDef HAL_IWDG_Init (IWDG_HandleTypeDef *
hiwdg)
Function description
Initialize the IWDG according to the specified parameters in the
IWDG_InitTypeDef and start watchdog.
Parameters
hiwdg: pointer to a IWDG_HandleTypeDef structure that
contains the configuration information for the specified IWDG
module.
Return values
HAL: status
HAL_IWDG_Refresh
Function name
HAL_StatusTypeDef HAL_IWDG_Refresh
(IWDG_HandleTypeDef * hiwdg)
Function description
Refresh the IWDG.
Parameters
hiwdg: pointer to a IWDG_HandleTypeDef structure that
contains the configuration information for the specified IWDG
module.
Return values
HAL: status
29.3 IWDG Firmware driver defines
29.3.1 IWDG
IWDG Exported Macros
__HAL_IWDG_START
Description:
Enable the IWDG peripheral.
Parameters:
__HANDLE__: IWDG handle
Return value:
None
__HAL_IWDG_RELOAD_COUNTER
Description:
Reload IWDG counter with value defined in
the reload register (write access to IWDG_PR,
IWDG_RLR & IWDG_WINR registers
disabled).
Parameters:
__HANDLE__: IWDG handle
Return value:
None
IWDG Prescaler
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IWDG_PRESCALER_4
IWDG prescaler set to 4
IWDG_PRESCALER_8
IWDG prescaler set to 8
IWDG_PRESCALER_16
IWDG prescaler set to 16
IWDG_PRESCALER_32
IWDG prescaler set to 32
IWDG_PRESCALER_64
IWDG prescaler set to 64
IWDG_PRESCALER_128
IWDG prescaler set to 128
IWDG_PRESCALER_256
IWDG prescaler set to 256
IWDG Window option
IWDG_WINDOW_DISABLE
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30 HAL LCD Generic Driver
30.1 LCD Firmware driver registers structures
30.1.1 LCD_InitTypeDef
Data Fields
uint32_t Prescaler
uint32_t Divider
uint32_t Duty
uint32_t Bias
uint32_t VoltageSource
uint32_t Contrast
uint32_t DeadTime
uint32_t PulseOnDuration
uint32_t HighDrive
uint32_t BlinkMode
uint32_t BlinkFrequency
uint32_t MuxSegment
Field Documentation
uint32_t LCD_InitTypeDef::Prescaler
Configures the LCD Prescaler. This parameter can be one value of LCD_Prescaler
uint32_t LCD_InitTypeDef::Divider
Configures the LCD Divider. This parameter can be one value of LCD_Divider
uint32_t LCD_InitTypeDef::Duty
Configures the LCD Duty. This parameter can be one value of LCD_Duty
uint32_t LCD_InitTypeDef::Bias
Configures the LCD Bias. This parameter can be one value of LCD_Bias
uint32_t LCD_InitTypeDef::VoltageSource
Selects the LCD Voltage source. This parameter can be one value of
LCD_Voltage_Source
uint32_t LCD_InitTypeDef::Contrast
Configures the LCD Contrast. This parameter can be one value of LCD_Contrast
uint32_t LCD_InitTypeDef::DeadTime
Configures the LCD Dead Time. This parameter can be one value of LCD_DeadTime
uint32_t LCD_InitTypeDef::PulseOnDuration
Configures the LCD Pulse On Duration. This parameter can be one value of
LCD_PulseOnDuration
uint32_t LCD_InitTypeDef::HighDrive
Configures the LCD High Drive. This parameter can be one value of LCD_HighDrive
uint32_t LCD_InitTypeDef::BlinkMode
Configures the LCD Blink Mode. This parameter can be one value of LCD_BlinkMode
uint32_t LCD_InitTypeDef::BlinkFrequency
Configures the LCD Blink frequency. This parameter can be one value of
LCD_BlinkFrequency
uint32_t LCD_InitTypeDef::MuxSegment
Enable or disable mux segment. This parameter can be one value of
LCD_MuxSegment
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30.1.2 LCD_HandleTypeDef
Data Fields
LCD_TypeDef * Instance
LCD_InitTypeDef Init
HAL_LockTypeDef Lock
__IO HAL_LCD_StateTypeDef State
__IO uint32_t ErrorCode
Field Documentation
LCD_TypeDef* LCD_HandleTypeDef::Instance
LCD_InitTypeDef LCD_HandleTypeDef::Init
HAL_LockTypeDef LCD_HandleTypeDef::Lock
__IO HAL_LCD_StateTypeDef LCD_HandleTypeDef::State
__IO uint32_t LCD_HandleTypeDef::ErrorCode
30.2 LCD Firmware driver API description
30.2.1 How to use this driver
The LCD HAL driver can be used as follow:
1. Declare a LCD_HandleTypeDef handle structure.
2. Prepare the initialization of the LCD low level resources by implementing your
HAL_LCD_MspInit() API:
a. Enable the LCDCLK (same as RTCCLK): to configure the RTCCLK/LCDCLK,
use the RCC function HAL_RCCEx_PeriphCLKConfig, indicating here
RCC_PERIPHCLK_LCD and the selected clock source (HSE, LSI or LSE)
b. The frequency generator allows you to achieve various LCD frame rates starting
from an LCD input clock frequency (LCDCLK) which can vary from 32 kHz up to
1 MHz.
c. LCD pins configuration: - Enable the clock for the LCD GPIOs - Configure these
LCD pins as alternate function no-pull.
d. Enable the LCD interface clock.
3. Set the Prescaler, Divider, Blink mode, Blink Frequency Duty, Bias, Voltage Source,
Dead Time, Pulse On Duration and Contrast in the hlcd Init structure.
4. Initialize the LCD registers by calling the HAL_LCD_Init() API.
a. The HAL_LCD_Init() API configures the low level Hardware (GPIO, CLOCK,
...etc) by calling the user customized HAL_LCD_MspInit() API.
5. After calling the HAL_LCD_Init() the LCD RAM memory is cleared
6. Optionally you can update the LCD configuration using these macros:
a. LCD High Drive using the __HAL_LCD_HIGHDRIVER_ENABLE() and
__HAL_LCD_HIGHDRIVER_DISABLE() macros
b. LCD Pulse ON Duration using the
__HAL_LCD_PULSEONDURATION_CONFIG() macro
c. LCD Dead Time using the __HAL_LCD_DEADTIME_CONFIG() macro
d. The LCD Blink mode and frequency using the __HAL_LCD_BLINK_CONFIG()
macro
e. The LCD Contrast using the __HAL_LCD_CONTRAST_CONFIG() macro
7. Write to the LCD RAM memory using the HAL_LCD_Write() API, this API can be
called several times to update the different LCD RAM registers before calling
HAL_LCD_UpdateDisplayRequest() API.
8. The HAL_LCD_Clear() API can be used to clear the LCD RAM memory.
9. When the LCD RAM memory is updated, enable the update display request calling the
HAL_LCD_UpdateDisplayRequest() API.
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LCD and low power modes: The LCD remain active during STOP mode.
30.2.2 Initialization and Configuration functions
This section contains the following APIs:
HAL_LCD_DeInit()
HAL_LCD_Init()
HAL_LCD_MspDeInit()
HAL_LCD_MspInit()
30.2.3 IO operation functions
Using its double buffer memory the LCD controller ensures the coherency of the displayed
information without having to use interrupts to control LCD_RAM modification. The
application software can access the first buffer level (LCD_RAM) through the APB
interface. Once it has modified the LCD_RAM using the HAL_LCD_Write() API, it sets the
UDR flag in the LCD_SR register using the HAL_LCD_UpdateDisplayRequest() API. This
UDR flag (update display request) requests the updated information to be moved into the
second buffer level (LCD_DISPLAY). This operation is done synchronously with the frame
(at the beginning of the next frame), until the update is completed, the LCD_RAM is write
protected and the UDR flag stays high. Once the update is completed another flag (UDD -
Update Display Done) is set and generates an interrupt if the UDDIE bit in the LCD_FCR
register is set. The time it takes to update LCD_DISPLAY is, in the worst case, one odd
and one even frame. The update will not occur (UDR = 1 and UDD = 0) until the display is
enabled (LCDEN = 1).
This section contains the following APIs:
HAL_LCD_Write()
HAL_LCD_Clear()
HAL_LCD_UpdateDisplayRequest()
30.2.4 Peripheral State functions
This subsection provides a set of functions allowing to control the LCD:
HAL_LCD_GetState() API can be helpful to check in run-time the state of the LCD
peripheral State.
HAL_LCD_GetError() API to return the LCD error code.
This section contains the following APIs:
HAL_LCD_GetState()
HAL_LCD_GetError()
30.2.5 Detailed description of functions
HAL_LCD_DeInit
Function name
HAL_StatusTypeDef HAL_LCD_DeInit (LCD_HandleTypeDef *
hlcd)
Function description
DeInitializes the LCD peripheral.
Parameters
hlcd: LCD handle
Return values
HAL: status
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HAL_LCD_Init
Function name
HAL_StatusTypeDef HAL_LCD_Init (LCD_HandleTypeDef *
hlcd)
Function description
Initializes the LCD peripheral according to the specified
parameters in the LCD_InitStruct.
Parameters
hlcd: LCD handle
Return values
None
Notes
This function can be used only when the LCD is disabled. The
LCD HighDrive can be enabled/disabled using related macros
up to user.
HAL_LCD_MspInit
Function name
void HAL_LCD_MspInit (LCD_HandleTypeDef * hlcd)
Function description
LCD MSP Init.
Parameters
hlcd: LCD handle
Return values
None
HAL_LCD_MspDeInit
Function name
void HAL_LCD_MspDeInit (LCD_HandleTypeDef * hlcd)
Function description
LCD MSP DeInit.
Parameters
hlcd: LCD handle
Return values
None
HAL_LCD_Write
Function name
HAL_StatusTypeDef HAL_LCD_Write (LCD_HandleTypeDef *
hlcd, uint32_t RAMRegisterIndex, uint32_t RAMRegisterMask,
uint32_t Data)
Function description
Writes a word in the specific LCD RAM.
Parameters
hlcd: LCD handle
RAMRegisterIndex: specifies the LCD RAM Register. This
parameter can be one of the following values:
LCD_RAM_REGISTER0: LCD RAM Register 0
LCD_RAM_REGISTER1: LCD RAM Register 1
LCD_RAM_REGISTER2: LCD RAM Register 2
LCD_RAM_REGISTER3: LCD RAM Register 3
LCD_RAM_REGISTER4: LCD RAM Register 4
LCD_RAM_REGISTER5: LCD RAM Register 5
LCD_RAM_REGISTER6: LCD RAM Register 6
LCD_RAM_REGISTER7: LCD RAM Register 7
LCD_RAM_REGISTER8: LCD RAM Register 8
LCD_RAM_REGISTER9: LCD RAM Register 9
LCD_RAM_REGISTER10: LCD RAM Register 10
LCD_RAM_REGISTER11: LCD RAM Register 11
LCD_RAM_REGISTER12: LCD RAM Register 12
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LCD_RAM_REGISTER13: LCD RAM Register 13
LCD_RAM_REGISTER14: LCD RAM Register 14
LCD_RAM_REGISTER15: LCD RAM Register 15
RAMRegisterMask: specifies the LCD RAM Register Data
Mask.
Data: specifies LCD Data Value to be written.
Return values
None
Notes
For LCD glass COM*SEG as 8*40 for example, the LCD
common terminals COM[0,7] are mapped on 32bits
LCD_RAM_REGISTER[0,14] according to rules: COM(n)
spread on LCD_RAM_REGISTER(2*n) and
LCD_RAM_REGISTER(2*n+1).The segment terminals
SEG[0,39] of COM(n) correspond to LSB bits of related
LCD_RAM_REGISTER(2*n)[0,31] and
LCD_RAM_REGISTER(2*n+1)[0,7]
HAL_LCD_Clear
Function name
HAL_StatusTypeDef HAL_LCD_Clear (LCD_HandleTypeDef *
hlcd)
Function description
Clears the LCD RAM registers.
Parameters
hlcd: LCD handle
Return values
None
HAL_LCD_UpdateDisplayRequest
Function name
HAL_StatusTypeDef HAL_LCD_UpdateDisplayRequest
(LCD_HandleTypeDef * hlcd)
Function description
Enables the Update Display Request.
Parameters
hlcd: LCD handle
Return values
None
Notes
Each time software modifies the LCD_RAM it must set the
UDR bit to transfer the updated data to the second level
buffer. The UDR bit stays set until the end of the update and
during this time the LCD_RAM is write protected.
When the display is disabled, the update is performed for all
LCD_DISPLAY locations. When the display is enabled, the
update is performed only for locations for which commons are
active (depending on DUTY). For example if DUTY = 1/2, only
the LCD_DISPLAY of COM0 and COM1 will be updated.
HAL_LCD_GetState
Function name
HAL_LCD_StateTypeDef HAL_LCD_GetState
(LCD_HandleTypeDef * hlcd)
Function description
Returns the LCD state.
Parameters
hlcd: LCD handle
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Return values
HAL: state
HAL_LCD_GetError
Function name
uint32_t HAL_LCD_GetError (LCD_HandleTypeDef * hlcd)
Function description
Return the LCD error code.
Parameters
hlcd: LCD handle
Return values
LCD: Error Code
LCD_WaitForSynchro
Function name
HAL_StatusTypeDef LCD_WaitForSynchro
(LCD_HandleTypeDef * hlcd)
Function description
Waits until the LCD FCR register is synchronized in the LCDCLK
domain.
Parameters
hlcd: LCD handle
Return values
None
30.3 LCD Firmware driver defines
30.3.1 LCD
LCD Bias
LCD_BIAS_1_4
1/4 Bias
LCD_BIAS_1_2
1/2 Bias
LCD_BIAS_1_3
1/3 Bias
IS_LCD_BIAS
LCD Blink Frequency
LCD_BLINKFREQUENCY_DIV8
The Blink frequency = fLCD/8
LCD_BLINKFREQUENCY_DIV16
The Blink frequency = fLCD/16
LCD_BLINKFREQUENCY_DIV32
The Blink frequency = fLCD/32
LCD_BLINKFREQUENCY_DIV64
The Blink frequency = fLCD/64
LCD_BLINKFREQUENCY_DIV128
The Blink frequency = fLCD/128
LCD_BLINKFREQUENCY_DIV256
The Blink frequency = fLCD/256
LCD_BLINKFREQUENCY_DIV512
The Blink frequency = fLCD/512
LCD_BLINKFREQUENCY_DIV1024
The Blink frequency = fLCD/1024
IS_LCD_BLINK_FREQUENCY
LCD Blink Mode
LCD_BLINKMODE_OFF
Blink disabled
LCD_BLINKMODE_SEG0_COM0
Blink enabled on SEG[0], COM[0] (1 pixel)
LCD_BLINKMODE_SEG0_ALLCOM
Blink enabled on SEG[0], all COM (up to 8 pixels
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according to the programmed duty)
LCD_BLINKMODE_ALLSEG_ALLCOM
Blink enabled on all SEG and all COM (all pixels)
IS_LCD_BLINK_MODE
LCD Voltage output buffer enable
LCD_VOLTBUFOUT_DISABLE
Voltage output buffer disabled
LCD_VOLTBUFOUT_ENABLE
BUFEN[1] Voltage output buffer enabled
IS_LCD_VOLTBUFOUT
LCD Contrast
LCD_CONTRASTLEVEL_0
Maximum Voltage = 2.60V
LCD_CONTRASTLEVEL_1
Maximum Voltage = 2.73V
LCD_CONTRASTLEVEL_2
Maximum Voltage = 2.86V
LCD_CONTRASTLEVEL_3
Maximum Voltage = 2.99V
LCD_CONTRASTLEVEL_4
Maximum Voltage = 3.12V
LCD_CONTRASTLEVEL_5
Maximum Voltage = 3.25V
LCD_CONTRASTLEVEL_6
Maximum Voltage = 3.38V
LCD_CONTRASTLEVEL_7
Maximum Voltage = 3.51V
IS_LCD_CONTRAST
LCD Dead Time
LCD_DEADTIME_0
No dead Time
LCD_DEADTIME_1
One Phase between different couple of Frame
LCD_DEADTIME_2
Two Phase between different couple of Frame
LCD_DEADTIME_3
Three Phase between different couple of Frame
LCD_DEADTIME_4
Four Phase between different couple of Frame
LCD_DEADTIME_5
Five Phase between different couple of Frame
LCD_DEADTIME_6
Six Phase between different couple of Frame
LCD_DEADTIME_7
Seven Phase between different couple of Frame
IS_LCD_DEAD_TIME
LCD Divider
LCD_DIVIDER_16
LCD frequency = CLKPS/16
LCD_DIVIDER_17
LCD frequency = CLKPS/17
LCD_DIVIDER_18
LCD frequency = CLKPS/18
LCD_DIVIDER_19
LCD frequency = CLKPS/19
LCD_DIVIDER_20
LCD frequency = CLKPS/20
LCD_DIVIDER_21
LCD frequency = CLKPS/21
LCD_DIVIDER_22
LCD frequency = CLKPS/22
LCD_DIVIDER_23
LCD frequency = CLKPS/23
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LCD_DIVIDER_24
LCD frequency = CLKPS/24
LCD_DIVIDER_25
LCD frequency = CLKPS/25
LCD_DIVIDER_26
LCD frequency = CLKPS/26
LCD_DIVIDER_27
LCD frequency = CLKPS/27
LCD_DIVIDER_28
LCD frequency = CLKPS/28
LCD_DIVIDER_29
LCD frequency = CLKPS/29
LCD_DIVIDER_30
LCD frequency = CLKPS/30
LCD_DIVIDER_31
LCD frequency = CLKPS/31
IS_LCD_DIVIDER
LCD Duty
LCD_DUTY_STATIC
Static duty
LCD_DUTY_1_2
1/2 duty
LCD_DUTY_1_3
1/3 duty
LCD_DUTY_1_4
1/4 duty
LCD_DUTY_1_8
1/8 duty
IS_LCD_DUTY
LCD Error Code
HAL_LCD_ERROR_NONE
No error
HAL_LCD_ERROR_FCRSF
Synchro flag timeout error
HAL_LCD_ERROR_UDR
Update display request flag timeout error
HAL_LCD_ERROR_UDD
Update display done flag timeout error
HAL_LCD_ERROR_ENS
LCD enabled status flag timeout error
HAL_LCD_ERROR_RDY
LCD Booster ready timeout error
LCD Exported Macros
__HAL_LCD_RESET_HANDLE_STA
TE
Description:
Reset LCD handle state.
Parameters:
__HANDLE__: specifies the LCD Handle.
Return value:
None
__HAL_LCD_ENABLE
Description:
macros to enables or disables the LCD
Parameters:
__HANDLE__: specifies the LCD Handle.
Return value:
None
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__HAL_LCD_DISABLE
__HAL_LCD_VOLTOUTBUFFER_
ENABLE
Description:
macros to enables or disables the Voltage
output buffer
Parameters:
__HANDLE__: specifies the LCD Handle.
Return value:
None
__HAL_LCD_VOLTOUTBUFFER_
DISABLE
__HAL_LCD_HIGHDRIVER_ENABL
E
Description:
Macros to enable or disable the low
resistance divider.
Parameters:
__HANDLE__: specifies the LCD Handle.
Return value:
None
Notes:
When this mode is enabled, the PulseOn
Duration (PON) have to be programmed to
1/CK_PS (LCD_PULSEONDURATION_1).
__HAL_LCD_HIGHDRIVER_
DISABLE
__HAL_LCD_PULSEONDURATION
_
CONFIG
Description:
Macro to configure the LCD pulses on
duration.
Parameters:
__HANDLE__: specifies the LCD Handle.
__DURATION__: specifies the LCD pulse on
duration in terms of CK_PS (prescaled LCD
clock period) pulses. This parameter can be
one of the following values:
LCD_PULSEONDURATION_0: 0 pulse
LCD_PULSEONDURATION_1: Pulse
ON duration = 1/CK_PS
LCD_PULSEONDURATION_2: Pulse
ON duration = 2/CK_PS
LCD_PULSEONDURATION_3: Pulse
ON duration = 3/CK_PS
LCD_PULSEONDURATION_4: Pulse
ON duration = 4/CK_PS
LCD_PULSEONDURATION_5: Pulse
ON duration = 5/CK_PS
LCD_PULSEONDURATION_6: Pulse
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ON duration = 6/CK_PS
LCD_PULSEONDURATION_7: Pulse
ON duration = 7/CK_PS
Return value:
None
__HAL_LCD_DEADTIME_CONFIG
Description:
Macro to configure the LCD dead time.
Parameters:
__HANDLE__: specifies the LCD Handle.
__DEADTIME__: specifies the LCD dead
time. This parameter can be one of the
following values:
LCD_DEADTIME_0: No dead Time
LCD_DEADTIME_1: One Phase
between different couple of Frame
LCD_DEADTIME_2: Two Phase
between different couple of Frame
LCD_DEADTIME_3: Three Phase
between different couple of Frame
LCD_DEADTIME_4: Four Phase
between different couple of Frame
LCD_DEADTIME_5: Five Phase
between different couple of Frame
LCD_DEADTIME_6: Six Phase between
different couple of Frame
LCD_DEADTIME_7: Seven Phase
between different couple of Frame
Return value:
None
__HAL_LCD_CONTRAST_CONFIG
Description:
Macro to configure the LCD Contrast.
Parameters:
__HANDLE__: specifies the LCD Handle.
__CONTRAST__: specifies the LCD Contrast.
This parameter can be one of the following
values:
LCD_CONTRASTLEVEL_0: Maximum
Voltage = 2.60V
LCD_CONTRASTLEVEL_1: Maximum
Voltage = 2.73V
LCD_CONTRASTLEVEL_2: Maximum
Voltage = 2.86V
LCD_CONTRASTLEVEL_3: Maximum
Voltage = 2.99V
LCD_CONTRASTLEVEL_4: Maximum
Voltage = 3.12V
LCD_CONTRASTLEVEL_5: Maximum
Voltage = 3.25V
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LCD_CONTRASTLEVEL_6: Maximum
Voltage = 3.38V
LCD_CONTRASTLEVEL_7: Maximum
Voltage = 3.51V
Return value:
None
__HAL_LCD_BLINK_CONFIG
Description:
Macro to configure the LCD Blink mode and
Blink frequency.
Parameters:
__HANDLE__: specifies the LCD Handle.
__BLINKMODE__: specifies the LCD blink
mode. This parameter can be one of the
following values:
LCD_BLINKMODE_OFF: Blink disabled
LCD_BLINKMODE_SEG0_COM0: Blink
enabled on SEG[0], COM[0] (1 pixel)
LCD_BLINKMODE_SEG0_ALLCOM:
Blink enabled on SEG[0], all COM (up to
8 pixels according to the programmed
duty)
LCD_BLINKMODE_ALLSEG_ALLCOM:
Blink enabled on all SEG and all COM
(all pixels)
__BLINKFREQUENCY__: specifies the LCD
blink frequency.
LCD_BLINKFREQUENCY_DIV8: The
Blink frequency = fLcd/8
LCD_BLINKFREQUENCY_DIV16: The
Blink frequency = fLcd/16
LCD_BLINKFREQUENCY_DIV32: The
Blink frequency = fLcd/32
LCD_BLINKFREQUENCY_DIV64: The
Blink frequency = fLcd/64
LCD_BLINKFREQUENCY_DIV128: The
Blink frequency = fLcd/128
LCD_BLINKFREQUENCY_DIV256: The
Blink frequency = fLcd/256
LCD_BLINKFREQUENCY_DIV512: The
Blink frequency = fLcd/512
LCD_BLINKFREQUENCY_DIV1024:
The Blink frequency = fLcd/1024
Return value:
None
__HAL_LCD_ENABLE_IT
Description:
Enables or disables the specified LCD
interrupt.
Parameters:
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__HANDLE__: specifies the LCD Handle.
__INTERRUPT__: specifies the LCD interrupt
source to be enabled or disabled. This
parameter can be one of the following values:
LCD_IT_SOF: Start of Frame Interrupt
LCD_IT_UDD: Update Display Done
Interrupt
Return value:
None
__HAL_LCD_DISABLE_IT
__HAL_LCD_GET_IT_SOURCE
Description:
Checks whether the specified LCD interrupt is
enabled or not.
Parameters:
__HANDLE__: specifies the LCD Handle.
__IT__: specifies the LCD interrupt source to
check. This parameter can be one of the
following values:
LCD_IT_SOF: Start of Frame Interrupt
LCD_IT_UDD: Update Display Done
Interrupt.
Return value:
The: state of __IT__ (TRUE or FALSE).
Notes:
If the device is in STOP mode (PCLK not
provided) UDD will not generate an interrupt
even if UDDIE = 1. If the display is not
enabled the UDD interrupt will never occur.
__HAL_LCD_GET_FLAG
Description:
Checks whether the specified LCD flag is set
or not.
Parameters:
__HANDLE__: specifies the LCD Handle.
__FLAG__: specifies the flag to check. This
parameter can be one of the following values:
LCD_FLAG_ENS: LCD Enabled flag. It
indicates the LCD controller status.
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
Notes:
The ENS bit is set immediately when the
LCDEN bit in the LCD_CR goes from 0 to 1.
On deactivation it reflects the real status of
LCD so it becomes 0 at the end of the last
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displayed frame. LCD_FLAG_SOF: Start of
Frame flag. This flag is set by hardware at the
beginning of a new frame, at the same time
as the display data is updated.
LCD_FLAG_UDR: Update Display Request
flag. LCD_FLAG_UDD: Update Display Done
flag. LCD_FLAG_RDY: Step_up converter
Ready flag. It indicates the status of the step-
up converter. LCD_FLAG_FCRSF: LCD
Frame Control Register Synchronization Flag.
This flag is set by hardware each time the
LCD_FCR register is updated in the LCDCLK
domain.
__HAL_LCD_CLEAR_FLAG
Description:
Clears the specified LCD pending flag.
Parameters:
__HANDLE__: specifies the LCD Handle.
__FLAG__: specifies the flag to clear. This
parameter can be any combination of the
following values:
LCD_FLAG_SOF: Start of Frame
Interrupt
LCD_FLAG_UDD: Update Display Done
Interrupt
Return value:
None
LCD Flag
LCD_FLAG_ENS
LCD_FLAG_SOF
LCD_FLAG_UDR
LCD_FLAG_UDD
LCD_FLAG_RDY
LCD_FLAG_FCRSF
LCD HighDrive
LCD_HIGHDRIVE_0
Low resistance Drive
LCD_HIGHDRIVE_1
High resistance Drive
IS_LCD_HIGHDRIVE
LCD Interrupts
LCD_IT_SOF
LCD_IT_UDD
LCD Mux Segment
LCD_MUXSEGMENT_DISABLE
SEG pin multiplexing disabled
LCD_MUXSEGMENT_ENABLE
SEG[31:28] are multiplexed with SEG[43:40]
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IS_LCD_MUXSEGMENT
LCD Prescaler
LCD_PRESCALER_1
CLKPS = LCDCLK
LCD_PRESCALER_2
CLKPS = LCDCLK/2
LCD_PRESCALER_4
CLKPS = LCDCLK/4
LCD_PRESCALER_8
CLKPS = LCDCLK/8
LCD_PRESCALER_16
CLKPS = LCDCLK/16
LCD_PRESCALER_32
CLKPS = LCDCLK/32
LCD_PRESCALER_64
CLKPS = LCDCLK/64
LCD_PRESCALER_128
CLKPS = LCDCLK/128
LCD_PRESCALER_256
CLKPS = LCDCLK/256
LCD_PRESCALER_512
CLKPS = LCDCLK/512
LCD_PRESCALER_1024
CLKPS = LCDCLK/1024
LCD_PRESCALER_2048
CLKPS = LCDCLK/2048
LCD_PRESCALER_4096
CLKPS = LCDCLK/4096
LCD_PRESCALER_8192
CLKPS = LCDCLK/8192
LCD_PRESCALER_16384
CLKPS = LCDCLK/16384
LCD_PRESCALER_32768
CLKPS = LCDCLK/32768
IS_LCD_PRESCALER
LCD Pulse On Duration
LCD_PULSEONDURATION_0
Pulse ON duration = 0 pulse
LCD_PULSEONDURATION_1
Pulse ON duration = 1/CK_PS
LCD_PULSEONDURATION_2
Pulse ON duration = 2/CK_PS
LCD_PULSEONDURATION_3
Pulse ON duration = 3/CK_PS
LCD_PULSEONDURATION_4
Pulse ON duration = 4/CK_PS
LCD_PULSEONDURATION_5
Pulse ON duration = 5/CK_PS
LCD_PULSEONDURATION_6
Pulse ON duration = 6/CK_PS
LCD_PULSEONDURATION_7
Pulse ON duration = 7/CK_PS
IS_LCD_PULSE_ON_DURATION
LCD RAMRegister
LCD_RAM_REGISTER0
LCD RAM Register 0
LCD_RAM_REGISTER1
LCD RAM Register 1
LCD_RAM_REGISTER2
LCD RAM Register 2
LCD_RAM_REGISTER3
LCD RAM Register 3
LCD_RAM_REGISTER4
LCD RAM Register 4
LCD_RAM_REGISTER5
LCD RAM Register 5
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LCD_RAM_REGISTER6
LCD RAM Register 6
LCD_RAM_REGISTER7
LCD RAM Register 7
LCD_RAM_REGISTER8
LCD RAM Register 8
LCD_RAM_REGISTER9
LCD RAM Register 9
LCD_RAM_REGISTER10
LCD RAM Register 10
LCD_RAM_REGISTER11
LCD RAM Register 11
LCD_RAM_REGISTER12
LCD RAM Register 12
LCD_RAM_REGISTER13
LCD RAM Register 13
LCD_RAM_REGISTER14
LCD RAM Register 14
LCD_RAM_REGISTER15
LCD RAM Register 15
IS_LCD_RAM_REGISTER
LCD Voltage Source
LCD_VOLTAGESOURCE_INTERNAL
Internal voltage source for the LCD
LCD_VOLTAGESOURCE_EXTERNAL
External voltage source for the LCD
IS_LCD_VOLTAGE_SOURCE
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31 HAL LPTIM Generic Driver
31.1 LPTIM Firmware driver registers structures
31.1.1 LPTIM_ClockConfigTypeDef
Data Fields
uint32_t Source
uint32_t Prescaler
Field Documentation
uint32_t LPTIM_ClockConfigTypeDef::Source
Selects the clock source. This parameter can be a value of LPTIM_Clock_Source
uint32_t LPTIM_ClockConfigTypeDef::Prescaler
Specifies the counter clock Prescaler. This parameter can be a value of
LPTIM_Clock_Prescaler
31.1.2 LPTIM_ULPClockConfigTypeDef
Data Fields
uint32_t Polarity
uint32_t SampleTime
Field Documentation
uint32_t LPTIM_ULPClockConfigTypeDef::Polarity
Selects the polarity of the active edge for the counter unit if the ULPTIM input is
selected. Note: This parameter is used only when Ultra low power clock source is
used. Note: If the polarity is configured on 'both edges', an auxiliary clock (one of the
Low power oscillator) must be active. This parameter can be a value of
LPTIM_Clock_Polarity
uint32_t LPTIM_ULPClockConfigTypeDef::SampleTime
Selects the clock sampling time to configure the clock glitch filter. Note: This
parameter is used only when Ultra low power clock source is used. This parameter
can be a value of LPTIM_Clock_Sample_Time
31.1.3 LPTIM_TriggerConfigTypeDef
Data Fields
uint32_t Source
uint32_t ActiveEdge
uint32_t SampleTime
Field Documentation
uint32_t LPTIM_TriggerConfigTypeDef::Source
Selects the Trigger source. This parameter can be a value of LPTIM_Trigger_Source
uint32_t LPTIM_TriggerConfigTypeDef::ActiveEdge
Selects the Trigger active edge. Note: This parameter is used only when an external
trigger is used. This parameter can be a value of LPTIM_External_Trigger_Polarity
uint32_t LPTIM_TriggerConfigTypeDef::SampleTime
Selects the trigger sampling time to configure the clock glitch filter. Note: This
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parameter is used only when an external trigger is used. This parameter can be a
value of LPTIM_Trigger_Sample_Time
31.1.4 LPTIM_InitTypeDef
Data Fields
LPTIM_ClockConfigTypeDef Clock
LPTIM_ULPClockConfigTypeDef UltraLowPowerClock
LPTIM_TriggerConfigTypeDef Trigger
uint32_t OutputPolarity
uint32_t UpdateMode
uint32_t CounterSource
Field Documentation
LPTIM_ClockConfigTypeDef LPTIM_InitTypeDef::Clock
Specifies the clock parameters
LPTIM_ULPClockConfigTypeDef LPTIM_InitTypeDef::UltraLowPowerClock
Specifies the Ultra Low Power clock parameters
LPTIM_TriggerConfigTypeDef LPTIM_InitTypeDef::Trigger
Specifies the Trigger parameters
uint32_t LPTIM_InitTypeDef::OutputPolarity
Specifies the Output polarity. This parameter can be a value of
LPTIM_Output_Polarity
uint32_t LPTIM_InitTypeDef::UpdateMode
Specifies whether the update of the autorelaod and the compare values is done
immediately or after the end of current period. This parameter can be a value of
LPTIM_Updating_Mode
uint32_t LPTIM_InitTypeDef::CounterSource
Specifies whether the counter is incremented each internal event or each external
event. This parameter can be a value of LPTIM_Counter_Source
31.1.5 LPTIM_HandleTypeDef
Data Fields
LPTIM_TypeDef * Instance
LPTIM_InitTypeDef Init
HAL_StatusTypeDef Status
HAL_LockTypeDef Lock
__IO HAL_LPTIM_StateTypeDef State
Field Documentation
LPTIM_TypeDef* LPTIM_HandleTypeDef::Instance
Register base address
LPTIM_InitTypeDef LPTIM_HandleTypeDef::Init
LPTIM required parameters
HAL_StatusTypeDef LPTIM_HandleTypeDef::Status
LPTIM peripheral status
HAL_LockTypeDef LPTIM_HandleTypeDef::Lock
LPTIM locking object
__IO HAL_LPTIM_StateTypeDef LPTIM_HandleTypeDef::State
LPTIM peripheral state
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31.2 LPTIM Firmware driver API description
31.2.1 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize the LPTIM according to the specified parameters in the LPTIM_InitTypeDef
and creates the associated handle.
DeInitialize the LPTIM peripheral.
Initialize the LPTIM MSP.
DeInitialize LPTIM MSP.
This section contains the following APIs:
HAL_LPTIM_Init()
HAL_LPTIM_DeInit()
HAL_LPTIM_MspInit()
HAL_LPTIM_MspDeInit()
31.2.2 LPTIM Start Stop operation functions
This section provides functions allowing to:
Start the PWM mode.
Stop the PWM mode.
Start the One pulse mode.
Stop the One pulse mode.
Start the Set once mode.
Stop the Set once mode.
Start the Encoder mode.
Stop the Encoder mode.
Start the Timeout mode.
Stop the Timeout mode.
Start the Counter mode.
Stop the Counter mode.
This section contains the following APIs:
HAL_LPTIM_PWM_Start()
HAL_LPTIM_PWM_Stop()
HAL_LPTIM_PWM_Start_IT()
HAL_LPTIM_PWM_Stop_IT()
HAL_LPTIM_OnePulse_Start()
HAL_LPTIM_OnePulse_Stop()
HAL_LPTIM_OnePulse_Start_IT()
HAL_LPTIM_OnePulse_Stop_IT()
HAL_LPTIM_SetOnce_Start()
HAL_LPTIM_SetOnce_Stop()
HAL_LPTIM_SetOnce_Start_IT()
HAL_LPTIM_SetOnce_Stop_IT()
HAL_LPTIM_Encoder_Start()
HAL_LPTIM_Encoder_Stop()
HAL_LPTIM_Encoder_Start_IT()
HAL_LPTIM_Encoder_Stop_IT()
HAL_LPTIM_TimeOut_Start()
HAL_LPTIM_TimeOut_Stop()
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HAL_LPTIM_TimeOut_Start_IT()
HAL_LPTIM_TimeOut_Stop_IT()
HAL_LPTIM_Counter_Start()
HAL_LPTIM_Counter_Stop()
HAL_LPTIM_Counter_Start_IT()
HAL_LPTIM_Counter_Stop_IT()
31.2.3 LPTIM Read operation functions
This section provides LPTIM Reading functions.
Read the counter value.
Read the period (Auto-reload) value.
Read the pulse (Compare)value.
This section contains the following APIs:
HAL_LPTIM_ReadCounter()
HAL_LPTIM_ReadAutoReload()
HAL_LPTIM_ReadCompare()
31.2.4 LPTIM IRQ handler
This section provides LPTIM IRQ handler function.
This section contains the following APIs:
HAL_LPTIM_IRQHandler()
HAL_LPTIM_CompareMatchCallback()
HAL_LPTIM_AutoReloadMatchCallback()
HAL_LPTIM_TriggerCallback()
HAL_LPTIM_CompareWriteCallback()
HAL_LPTIM_AutoReloadWriteCallback()
HAL_LPTIM_DirectionUpCallback()
HAL_LPTIM_DirectionDownCallback()
31.2.5 Peripheral State functions
This subsection permits to get in run-time the status of the peripheral.
This section contains the following APIs:
HAL_LPTIM_GetState()
31.2.6 Detailed description of functions
HAL_LPTIM_Init
Function name
HAL_StatusTypeDef HAL_LPTIM_Init (LPTIM_HandleTypeDef
* hlptim)
Function description
Initializes the LPTIM according to the specified parameters in the
LPTIM_InitTypeDef and creates the associated handle.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
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HAL_LPTIM_DeInit
Function name
HAL_StatusTypeDef HAL_LPTIM_DeInit
(LPTIM_HandleTypeDef * hlptim)
Function description
DeInitializes the LPTIM peripheral.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_MspInit
Function name
void HAL_LPTIM_MspInit (LPTIM_HandleTypeDef * hlptim)
Function description
Initializes the LPTIM MSP.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_MspDeInit
Function name
void HAL_LPTIM_MspDeInit (LPTIM_HandleTypeDef * hlptim)
Function description
DeInitializes LPTIM MSP.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_PWM_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_PWM_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Pulse)
Function description
Starts the LPTIM PWM generation.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_PWM_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_PWM_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM PWM generation.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
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HAL_LPTIM_PWM_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_PWM_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Pulse)
Function description
Starts the LPTIM PWM generation in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF
Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF
Return values
HAL: status
HAL_LPTIM_PWM_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_PWM_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM PWM generation in interrupt mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_OnePulse_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_OnePulse_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Pulse)
Function description
Starts the LPTIM One pulse generation.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_OnePulse_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_OnePulse_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM One pulse generation.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_OnePulse_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_OnePulse_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
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Pulse)
Function description
Starts the LPTIM One pulse generation in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_OnePulse_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_OnePulse_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM One pulse generation in interrupt mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_SetOnce_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Pulse)
Function description
Starts the LPTIM in Set once mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_SetOnce_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM Set once mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_SetOnce_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Pulse)
Function description
Starts the LPTIM Set once mode in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
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Pulse: : Specifies the compare value. This parameter must
be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_SetOnce_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the LPTIM Set once mode in interrupt mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_Encoder_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_Encoder_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period)
Function description
Starts the Encoder interface.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_Encoder_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_Encoder_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Encoder interface.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_Encoder_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_Encoder_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period)
Function description
Starts the Encoder interface in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_Encoder_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_Encoder_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Encoder interface in nterrupt mode.
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Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_TimeOut_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_TimeOut_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Timeout)
Function description
Starts the Timeout function.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Timeout: : Specifies the TimeOut value to rest the counter.
This parameter must be a value between 0x0000 and
0xFFFF.
Return values
HAL: status
HAL_LPTIM_TimeOut_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_TimeOut_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Timeout function.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_TimeOut_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_TimeOut_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period, uint32_t
Timeout)
Function description
Starts the Timeout function in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Timeout: : Specifies the TimeOut value to rest the counter.
This parameter must be a value between 0x0000 and
0xFFFF.
Return values
HAL: status
HAL_LPTIM_TimeOut_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_TimeOut_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Timeout function in interrupt mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
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HAL_LPTIM_Counter_Start
Function name
HAL_StatusTypeDef HAL_LPTIM_Counter_Start
(LPTIM_HandleTypeDef * hlptim, uint32_t Period)
Function description
Starts the Counter mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_Counter_Stop
Function name
HAL_StatusTypeDef HAL_LPTIM_Counter_Stop
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Counter mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_Counter_Start_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_Counter_Start_IT
(LPTIM_HandleTypeDef * hlptim, uint32_t Period)
Function description
Starts the Counter mode in interrupt mode.
Parameters
hlptim: : LPTIM handle
Period: : Specifies the Autoreload value. This parameter
must be a value between 0x0000 and 0xFFFF.
Return values
HAL: status
HAL_LPTIM_Counter_Stop_IT
Function name
HAL_StatusTypeDef HAL_LPTIM_Counter_Stop_IT
(LPTIM_HandleTypeDef * hlptim)
Function description
Stops the Counter mode in interrupt mode.
Parameters
hlptim: : LPTIM handle
Return values
HAL: status
HAL_LPTIM_ReadCounter
Function name
uint32_t HAL_LPTIM_ReadCounter (LPTIM_HandleTypeDef *
hlptim)
Function description
This function returns the current counter value.
Parameters
hlptim: LPTIM handle
Return values
Counter: value.
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HAL_LPTIM_ReadAutoReload
Function name
uint32_t HAL_LPTIM_ReadAutoReload
(LPTIM_HandleTypeDef * hlptim)
Function description
This function return the current Autoreload (Period) value.
Parameters
hlptim: LPTIM handle
Return values
Autoreload: value.
HAL_LPTIM_ReadCompare
Function name
uint32_t HAL_LPTIM_ReadCompare (LPTIM_HandleTypeDef *
hlptim)
Function description
This function return the current Compare (Pulse) value.
Parameters
hlptim: LPTIM handle
Return values
Compare: value.
HAL_LPTIM_IRQHandler
Function name
void HAL_LPTIM_IRQHandler (LPTIM_HandleTypeDef *
hlptim)
Function description
This function handles LPTIM interrupt request.
Parameters
hlptim: LPTIM handle
Return values
None
HAL_LPTIM_CompareMatchCallback
Function name
void HAL_LPTIM_CompareMatchCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Compare match callback in non blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_AutoReloadMatchCallback
Function name
void HAL_LPTIM_AutoReloadMatchCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Autoreload match callback in non blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_TriggerCallback
Function name
void HAL_LPTIM_TriggerCallback (LPTIM_HandleTypeDef *
hlptim)
Function description
Trigger detected callback in non blocking mode.
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Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_CompareWriteCallback
Function name
void HAL_LPTIM_CompareWriteCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Compare write callback in non blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_AutoReloadWriteCallback
Function name
void HAL_LPTIM_AutoReloadWriteCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Autoreload write callback in non blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_DirectionUpCallback
Function name
void HAL_LPTIM_DirectionUpCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Direction counter changed from Down to Up callback in non
blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_DirectionDownCallback
Function name
void HAL_LPTIM_DirectionDownCallback
(LPTIM_HandleTypeDef * hlptim)
Function description
Direction counter changed from Up to Down callback in non
blocking mode.
Parameters
hlptim: : LPTIM handle
Return values
None
HAL_LPTIM_GetState
Function name
HAL_LPTIM_StateTypeDef HAL_LPTIM_GetState
(LPTIM_HandleTypeDef * hlptim)
Function description
Returns the LPTIM state.
Parameters
hlptim: LPTIM handle
Return values
HAL: state
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31.3 LPTIM Firmware driver defines
31.3.1 LPTIM
LPTIM Clock configuration structure
LPTIM_EXTI_LINE_WAKEUPTIMER_EVENT
External interrupt line 29 Connected to the
LPTIM EXTI Line
Clock polarity
LPTIM_CLOCKPOLARITY_RISING
LPTIM_CLOCKPOLARITY_FALLING
LPTIM_CLOCKPOLARITY_RISING_FALLING
Prescaler
LPTIM_PRESCALER_DIV1
LPTIM_PRESCALER_DIV2
LPTIM_PRESCALER_DIV4
LPTIM_PRESCALER_DIV8
LPTIM_PRESCALER_DIV16
LPTIM_PRESCALER_DIV32
LPTIM_PRESCALER_DIV64
LPTIM_PRESCALER_DIV128
Clock sample time
LPTIM_CLOCKSAMPLETIME_DIRECTTRANSITION
LPTIM_CLOCKSAMPLETIME_2TRANSITIONS
LPTIM_CLOCKSAMPLETIME_4TRANSITIONS
LPTIM_CLOCKSAMPLETIME_8TRANSITIONS
Clock source
LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC
LPTIM_CLOCKSOURCE_ULPTIM
Counter source
LPTIM_COUNTERSOURCE_INTERNAL
LPTIM_COUNTERSOURCE_EXTERNAL
LPTIM Exported constants
IS_LPTIM_AUTORELOAD
IS_LPTIM_COMPARE
IS_LPTIM_CLOCK_SOURCE
IS_LPTIM_CLOCK_PRESCALER
IS_LPTIM_CLOCK_PRESCALERDIV1
IS_LPTIM_OUTPUT_POLARITY
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IS_LPTIM_CLOCK_SAMPLE_TIME
IS_LPTIM_CLOCK_POLARITY
IS_LPTIM_EXT_TRG_POLARITY
IS_LPTIM_TRIG_SAMPLE_TIME
IS_LPTIM_UPDATE_MODE
IS_LPTIM_COUNTER_SOURCE
IS_LPTIM_PERIOD
IS_LPTIM_PULSE
LPTIM Exported Macros
__HAL_LPTIM_RESET_HANDLE_STATE
Description:
Reset LPTIM handle state.
Parameters:
__HANDLE__: LPTIM handle
Return value:
None
__HAL_LPTIM_ENABLE
Description:
Enable/Disable the LPTIM
peripheral.
Parameters:
__HANDLE__: LPTIM handle
Return value:
None
__HAL_LPTIM_DISABLE
__HAL_LPTIM_START_CONTINUOUS
Description:
Starts the LPTIM peripheral in
Continuous or in single mode.
Parameters:
__HANDLE__: DMA handle
Return value:
None
__HAL_LPTIM_START_SINGLE
__HAL_LPTIM_AUTORELOAD_SET
Description:
Writes the passed parameter
in the Autoreload register.
Parameters:
__HANDLE__: LPTIM handle
__VALUE__: : Autoreload
value
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Return value:
None
__HAL_LPTIM_COMPARE_SET
Description:
Writes the passed parameter
in the Compare register.
Parameters:
__HANDLE__: LPTIM handle
__VALUE__: : Compare value
Return value:
None
__HAL_LPTIM_GET_FLAG
Description:
Checks whether the specified
LPTIM flag is set or not.
Parameters:
__HANDLE__: LPTIM handle
__FLAG__: : LPTIM flag to
check This parameter can be a
value of:
LPTIM_FLAG_DOWN :
Counter direction change
up Flag.
LPTIM_FLAG_UP :
Counter direction change
down to up Flag.
LPTIM_FLAG_ARROK :
Autoreload register
update OK Flag.
LPTIM_FLAG_CMPOK :
Compare register update
OK Flag.
LPTIM_FLAG_EXTTRIG :
External trigger edge
event Flag.
LPTIM_FLAG_ARRM :
Autoreload match Flag.
LPTIM_FLAG_CMPM :
Compare match Flag.
Return value:
The: state of the specified flag
(SET or RESET).
__HAL_LPTIM_CLEAR_FLAG
Description:
Clears the specified LPTIM
flag.
Parameters:
__HANDLE__: LPTIM handle.
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__FLAG__: : LPTIM flag to
clear. This parameter can be a
value of:
LPTIM_FLAG_DOWN :
Counter direction change
up Flag.
LPTIM_FLAG_UP :
Counter direction change
down to up Flag.
LPTIM_FLAG_ARROK :
Autoreload register
update OK Flag.
LPTIM_FLAG_CMPOK :
Compare register update
OK Flag.
LPTIM_FLAG_EXTTRIG :
External trigger edge
event Flag.
LPTIM_FLAG_ARRM :
Autoreload match Flag.
LPTIM_FLAG_CMPM :
Compare match Flag.
Return value:
None.
__HAL_LPTIM_ENABLE_IT
Description:
Enable the specified LPTIM
interrupt.
Parameters:
__HANDLE__: : LPTIM
handle.
__INTERRUPT__: : LPTIM
interrupt to set. This parameter
can be a value of:
LPTIM_IT_DOWN :
Counter direction change
up Interrupt.
LPTIM_IT_UP : Counter
direction change down to
up Interrupt.
LPTIM_IT_ARROK :
Autoreload register
update OK Interrupt.
LPTIM_IT_CMPOK :
Compare register update
OK Interrupt.
LPTIM_IT_EXTTRIG :
External trigger edge
event Interrupt.
LPTIM_IT_ARRM :
Autoreload match
Interrupt.
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LPTIM_IT_CMPM :
Compare match Interrupt.
Return value:
None.
__HAL_LPTIM_DISABLE_IT
Description:
Disable the specified LPTIM
interrupt.
Parameters:
__HANDLE__: : LPTIM
handle.
__INTERRUPT__: : LPTIM
interrupt to set. This parameter
can be a value of:
LPTIM_IT_DOWN :
Counter direction change
up Interrupt.
LPTIM_IT_UP : Counter
direction change down to
up Interrupt.
LPTIM_IT_ARROK :
Autoreload register
update OK Interrupt.
LPTIM_IT_CMPOK :
Compare register update
OK Interrupt.
LPTIM_IT_EXTTRIG :
External trigger edge
event Interrupt.
LPTIM_IT_ARRM :
Autoreload match
Interrupt.
LPTIM_IT_CMPM :
Compare match Interrupt.
Return value:
None.
__HAL_LPTIM_GET_IT_SOURCE
Description:
Checks whether the specified
LPTIM interrupt is set or not.
Parameters:
__HANDLE__: : LPTIM
handle.
__INTERRUPT__: : LPTIM
interrupt to check. This
parameter can be a value of:
LPTIM_IT_DOWN :
Counter direction change
up Interrupt.
LPTIM_IT_UP : Counter
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direction change down to
up Interrupt.
LPTIM_IT_ARROK :
Autoreload register
update OK Interrupt.
LPTIM_IT_CMPOK :
Compare register update
OK Interrupt.
LPTIM_IT_EXTTRIG :
External trigger edge
event Interrupt.
LPTIM_IT_ARRM :
Autoreload match
Interrupt.
LPTIM_IT_CMPM :
Compare match Interrupt.
Return value:
Interrupt: status.
__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_IT
Description:
Enable interrupt on the LPTIM
Wake-up Timer associated Exti
line.
Return value:
None
__HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_
IT
Description:
Disable interrupt on the LPTIM
Wake-up Timer associated Exti
line.
Return value:
None
__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_
EVENT
Description:
Enable event on the LPTIM
Wake-up Timer associated Exti
line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_
EVENT
Description:
Disable event on the LPTIM
Wake-up Timer associated Exti
line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_
FALLING_EDGE
Description:
Enable falling edge trigger on
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the LPTIM Wake-up Timer
associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_
FALLING_EDGE
Description:
Disable falling edge trigger on
the LPTIM Wake-up Timer
associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_
RISING_EDGE
Description:
Enable rising edge trigger on
the LPTIM Wake-up Timer
associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_
RISING_EDGE
Description:
Disable rising edge trigger on
the LPTIM Wake-up Timer
associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_
RISING_FALLING_EDGE
Description:
Enable rising & falling edge
trigger on the LPTIM Wake-up
Timer associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_
RISING_FALLING_EDGE
Description:
Disable rising & falling edge
trigger on the LPTIM Wake-up
Timer associated Exti line.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_GET_FLAG
Description:
Check whether the LPTIM
Wake-up Timer associated Exti
line interrupt flag is set or not.
Return value:
Line: Status.
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__HAL_LPTIM_WAKEUPTIMER_EXTI_CLEAR_
FLAG
Description:
Clear the LPTIM Wake-up
Timer associated Exti line flag.
Return value:
None.
__HAL_LPTIM_WAKEUPTIMER_EXTI_
GENERATE_SWIT
Description:
Generate a Software interrupt
on the LPTIM Wake-up Timer
associated Exti line.
Return value:
None.
Trigger polarity
LPTIM_ACTIVEEDGE_RISING
LPTIM_ACTIVEEDGE_FALLING
LPTIM_ACTIVEEDGE_RISING_FALLING
Flag definition
LPTIM_FLAG_DOWN
LPTIM_FLAG_UP
LPTIM_FLAG_ARROK
LPTIM_FLAG_CMPOK
LPTIM_FLAG_EXTTRIG
LPTIM_FLAG_ARRM
LPTIM_FLAG_CMPM
Interrupts definition
LPTIM_IT_DOWN
LPTIM_IT_UP
LPTIM_IT_ARROK
LPTIM_IT_CMPOK
LPTIM_IT_EXTTRIG
LPTIM_IT_ARRM
LPTIM_IT_CMPM
Output polarity
LPTIM_OUTPUTPOLARITY_HIGH
LPTIM_OUTPUTPOLARITY_LOW
Trigger sample time
LPTIM_TRIGSAMPLETIME_DIRECTTRANSITION
LPTIM_TRIGSAMPLETIME_2TRANSITIONS
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LPTIM_TRIGSAMPLETIME_4TRANSITIONS
LPTIM_TRIGSAMPLETIME_8TRANSITIONS
Trigger source
LPTIM_TRIGSOURCE_SOFTWARE
LPTIM_TRIGSOURCE_0
LPTIM_TRIGSOURCE_1
LPTIM_TRIGSOURCE_2
LPTIM_TRIGSOURCE_3
LPTIM_TRIGSOURCE_4
LPTIM_TRIGSOURCE_5
LPTIM_TRIGSOURCE_6
LPTIM_TRIGSOURCE_7
Updating mode
LPTIM_UPDATE_IMMEDIATE
LPTIM_UPDATE_ENDOFPERIOD
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32 HAL PCD Generic Driver
32.1 PCD Firmware driver registers structures
32.1.1 PCD_InitTypeDef
Data Fields
uint32_t dev_endpoints
uint32_t speed
uint32_t ep0_mps
uint32_t phy_itface
uint32_t Sof_enable
uint32_t low_power_enable
uint32_t lpm_enable
uint32_t battery_charging_enable
Field Documentation
uint32_t PCD_InitTypeDef::dev_endpoints
Device Endpoints number. This parameter depends on the used USB core. This
parameter must be a number between Min_Data = 1 and Max_Data = 15
uint32_t PCD_InitTypeDef::speed
USB Core speed. This parameter can be any value of PCD_Speed
uint32_t PCD_InitTypeDef::ep0_mps
Set the Endpoint 0 Max Packet size. This parameter can be any value of
PCD_USB_EP0_MPS
uint32_t PCD_InitTypeDef::phy_itface
Select the used PHY interface. This parameter can be any value of
PCD_USB_Core_PHY
uint32_t PCD_InitTypeDef::Sof_enable
Enable or disable the output of the SOF signal. This parameter can be set to ENABLE
or DISABLE
uint32_t PCD_InitTypeDef::low_power_enable
Enable or disable Low Power mode This parameter can be set to ENABLE or
DISABLE
uint32_t PCD_InitTypeDef::lpm_enable
Enable or disable Link Power Management. This parameter can be set to ENABLE or
DISABLE
uint32_t PCD_InitTypeDef::battery_charging_enable
Enable or disable Battery charging. This parameter can be set to ENABLE or
DISABLE
32.1.2 PCD_EPTypeDef
Data Fields
uint8_t num
uint8_t is_in
uint8_t is_stall
uint8_t type
uint16_t pmaadress
uint16_t pmaaddr0
uint16_t pmaaddr1
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uint8_t doublebuffer
uint32_t maxpacket
uint8_t * xfer_buff
uint32_t xfer_len
uint32_t xfer_count
Field Documentation
uint8_t PCD_EPTypeDef::num
Endpoint number This parameter must be a number between Min_Data = 1 and
Max_Data = 15
uint8_t PCD_EPTypeDef::is_in
Endpoint direction This parameter must be a number between Min_Data = 0 and
Max_Data = 1
uint8_t PCD_EPTypeDef::is_stall
Endpoint stall condition This parameter must be a number between Min_Data = 0 and
Max_Data = 1
uint8_t PCD_EPTypeDef::type
Endpoint type This parameter can be any value of PCD_USB_EP_Type
uint16_t PCD_EPTypeDef::pmaadress
PMA Address This parameter can be any value between Min_addr = 0 and Max_addr
= 1K
uint16_t PCD_EPTypeDef::pmaaddr0
PMA Address0 This parameter can be any value between Min_addr = 0 and
Max_addr = 1K
uint16_t PCD_EPTypeDef::pmaaddr1
PMA Address1 This parameter can be any value between Min_addr = 0 and
Max_addr = 1K
uint8_t PCD_EPTypeDef::doublebuffer
Double buffer enable This parameter can be 0 or 1
uint32_t PCD_EPTypeDef::maxpacket
Endpoint Max packet size This parameter must be a number between Min_Data = 0
and Max_Data = 64KB
uint8_t* PCD_EPTypeDef::xfer_buff
Pointer to transfer buffer
uint32_t PCD_EPTypeDef::xfer_len
Current transfer length
uint32_t PCD_EPTypeDef::xfer_count
Partial transfer length in case of multi packet transfer
32.1.3 PCD_HandleTypeDef
Data Fields
PCD_TypeDef * Instance
PCD_InitTypeDef Init
__IO uint8_t USB_Address
PCD_EPTypeDef IN_ep
PCD_EPTypeDef OUT_ep
HAL_LockTypeDef Lock
__IO PCD_StateTypeDef State
uint32_t Setup
PCD_LPM_StateTypeDef LPM_State
uint32_t BESL
uint32_t lpm_active
uint32_t battery_charging_active
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void * pData
Field Documentation
PCD_TypeDef* PCD_HandleTypeDef::Instance
Register base address
PCD_InitTypeDef PCD_HandleTypeDef::Init
PCD required parameters
__IO uint8_t PCD_HandleTypeDef::USB_Address
USB Address
PCD_EPTypeDef PCD_HandleTypeDef::IN_ep[8]
IN endpoint parameters
PCD_EPTypeDef PCD_HandleTypeDef::OUT_ep[8]
OUT endpoint parameters
HAL_LockTypeDef PCD_HandleTypeDef::Lock
PCD peripheral status
__IO PCD_StateTypeDef PCD_HandleTypeDef::State
PCD communication state
uint32_t PCD_HandleTypeDef::Setup[12]
Setup packet buffer
PCD_LPM_StateTypeDef PCD_HandleTypeDef::LPM_State
LPM State
uint32_t PCD_HandleTypeDef::BESL
uint32_t PCD_HandleTypeDef::lpm_active
Enable or disable the Link Power Management . This parameter can be set to
ENABLE or DISABLE
uint32_t PCD_HandleTypeDef::battery_charging_active
Enable or disable Battery charging. This parameter can be set to ENABLE or
DISABLE
void* PCD_HandleTypeDef::pData
Pointer to upper stack Handler
32.2 PCD Firmware driver API description
32.2.1 How to use this driver
The PCD HAL driver can be used as follows:
1. Declare a PCD_HandleTypeDef handle structure, for example: PCD_HandleTypeDef
hpcd;
2. Fill parameters of Init structure in HCD handle
3. Call HAL_PCD_Init() API to initialize the HCD peripheral (Core, Device core, ...)
4. Initialize the PCD low level resources through the HAL_PCD_MspInit() API:
a. Enable the PCD/USB Low Level interface clock using
__HAL_RCC_USB_CLK_ENABLE();
b. Initialize the related GPIO clocks
c. Configure PCD pin-out
d. Configure PCD NVIC interrupt
5. Associate the Upper USB device stack to the HAL PCD Driver:
a. hpcd.pData = pdev;
6. Enable HCD transmission and reception:
a. HAL_PCD_Start();
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32.2.2 Initialization and de-initialization functions
This section provides functions allowing to:
This section contains the following APIs:
HAL_PCD_Init()
HAL_PCD_DeInit()
HAL_PCD_MspInit()
HAL_PCD_MspDeInit()
32.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the PCD data transfers.
This section contains the following APIs:
HAL_PCD_Start()
HAL_PCD_Stop()
HAL_PCD_IRQHandler()
HAL_PCD_DataOutStageCallback()
HAL_PCD_DataInStageCallback()
HAL_PCD_SetupStageCallback()
HAL_PCD_SOFCallback()
HAL_PCD_ResetCallback()
HAL_PCD_SuspendCallback()
HAL_PCD_ResumeCallback()
HAL_PCD_ISOOUTIncompleteCallback()
HAL_PCD_ISOINIncompleteCallback()
HAL_PCD_ConnectCallback()
HAL_PCD_DisconnectCallback()
32.2.4 Peripheral Control functions
This subsection provides a set of functions allowing to control the PCD data transfers.
This section contains the following APIs:
HAL_PCD_DevConnect()
HAL_PCD_DevDisconnect()
HAL_PCD_SetAddress()
HAL_PCD_EP_Open()
HAL_PCD_EP_Close()
HAL_PCD_EP_Receive()
HAL_PCD_EP_GetRxCount()
HAL_PCD_EP_Transmit()
HAL_PCD_EP_SetStall()
HAL_PCD_EP_ClrStall()
HAL_PCD_EP_Flush()
HAL_PCD_ActivateRemoteWakeup()
HAL_PCD_DeActivateRemoteWakeup()
PCD_WritePMA()
PCD_ReadPMA()
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32.2.5 Peripheral State functions
This subsection permit to get in run-time the status of the peripheral and the data flow.
This section contains the following APIs:
HAL_PCD_GetState()
32.2.6 Detailed description of functions
HAL_PCD_Init
Function name
HAL_StatusTypeDef HAL_PCD_Init (PCD_HandleTypeDef *
hpcd)
Function description
Initializes the PCD according to the specified parameters in the
PCD_InitTypeDef and create the associated handle.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_DeInit
Function name
HAL_StatusTypeDef HAL_PCD_DeInit (PCD_HandleTypeDef *
hpcd)
Function description
DeInitializes the PCD peripheral.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_MspInit
Function name
void HAL_PCD_MspInit (PCD_HandleTypeDef * hpcd)
Function description
Initializes the PCD MSP.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_MspDeInit
Function name
void HAL_PCD_MspDeInit (PCD_HandleTypeDef * hpcd)
Function description
DeInitializes PCD MSP.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_Start
Function name
HAL_StatusTypeDef HAL_PCD_Start (PCD_HandleTypeDef *
hpcd)
Function description
Start The USB OTG Device.
Parameters
hpcd: PCD handle
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Return values
HAL: status
HAL_PCD_Stop
Function name
HAL_StatusTypeDef HAL_PCD_Stop (PCD_HandleTypeDef *
hpcd)
Function description
Stop The USB OTG Device.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_IRQHandler
Function name
void HAL_PCD_IRQHandler (PCD_HandleTypeDef * hpcd)
Function description
This function handles PCD interrupt request.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_DataOutStageCallback
Function name
void HAL_PCD_DataOutStageCallback (PCD_HandleTypeDef *
hpcd, uint8_t epnum)
Function description
Data out stage callbacks.
Parameters
hpcd: PCD handle
epnum: endpoint number
Return values
None
HAL_PCD_DataInStageCallback
Function name
void HAL_PCD_DataInStageCallback (PCD_HandleTypeDef *
hpcd, uint8_t epnum)
Function description
Data IN stage callbacks.
Parameters
hpcd: PCD handle
epnum: endpoint number
Return values
None
HAL_PCD_SetupStageCallback
Function name
void HAL_PCD_SetupStageCallback (PCD_HandleTypeDef *
hpcd)
Function description
Setup stage callback.
Parameters
hpcd: PCD handle
Return values
None
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HAL_PCD_SOFCallback
Function name
void HAL_PCD_SOFCallback (PCD_HandleTypeDef * hpcd)
Function description
USB Start Of Frame callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_ResetCallback
Function name
void HAL_PCD_ResetCallback (PCD_HandleTypeDef * hpcd)
Function description
USB Reset callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_SuspendCallback
Function name
void HAL_PCD_SuspendCallback (PCD_HandleTypeDef *
hpcd)
Function description
Suspend event callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_ResumeCallback
Function name
void HAL_PCD_ResumeCallback (PCD_HandleTypeDef *
hpcd)
Function description
Resume event callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_ISOOUTIncompleteCallback
Function name
void HAL_PCD_ISOOUTIncompleteCallback
(PCD_HandleTypeDef * hpcd, uint8_t epnum)
Function description
Incomplete ISO OUT callbacks.
Parameters
hpcd: PCD handle
epnum: endpoint number
Return values
None
HAL_PCD_ISOINIncompleteCallback
Function name
void HAL_PCD_ISOINIncompleteCallback
(PCD_HandleTypeDef * hpcd, uint8_t epnum)
Function description
Incomplete ISO IN callbacks.
Parameters
hpcd: PCD handle
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epnum: endpoint number
Return values
None
HAL_PCD_ConnectCallback
Function name
void HAL_PCD_ConnectCallback (PCD_HandleTypeDef *
hpcd)
Function description
Connection event callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_DisconnectCallback
Function name
void HAL_PCD_DisconnectCallback (PCD_HandleTypeDef *
hpcd)
Function description
Disconnection event callbacks.
Parameters
hpcd: PCD handle
Return values
None
HAL_PCD_DevConnect
Function name
HAL_StatusTypeDef HAL_PCD_DevConnect
(PCD_HandleTypeDef * hpcd)
Function description
Connect the USB device.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_DevDisconnect
Function name
HAL_StatusTypeDef HAL_PCD_DevDisconnect
(PCD_HandleTypeDef * hpcd)
Function description
Disconnect the USB device.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCD_SetAddress
Function name
HAL_StatusTypeDef HAL_PCD_SetAddress
(PCD_HandleTypeDef * hpcd, uint8_t address)
Function description
Set the USB Device address.
Parameters
hpcd: PCD handle
address: new device address
Return values
HAL: status
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HAL_PCD_EP_Open
Function name
HAL_StatusTypeDef HAL_PCD_EP_Open
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr, uint16_t
ep_mps, uint8_t ep_type)
Function description
Open and configure an endpoint.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
ep_mps: endpoint max packert size
ep_type: endpoint type
Return values
HAL: status
HAL_PCD_EP_Close
Function name
HAL_StatusTypeDef HAL_PCD_EP_Close
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr)
Function description
Deactivate an endpoint.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
Return values
HAL: status
HAL_PCD_EP_Receive
Function name
HAL_StatusTypeDef HAL_PCD_EP_Receive
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr, uint8_t * pBuf,
uint32_t len)
Function description
Receive an amount of data.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
pBuf: pointer to the reception buffer
len: amount of data to be received
Return values
HAL: status
HAL_PCD_EP_Transmit
Function name
HAL_StatusTypeDef HAL_PCD_EP_Transmit
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr, uint8_t * pBuf,
uint32_t len)
Function description
Send an amount of data.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
pBuf: pointer to the transmission buffer
len: amount of data to be sent
Return values
HAL: status
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HAL_PCD_EP_GetRxCount
Function name
uint16_t HAL_PCD_EP_GetRxCount (PCD_HandleTypeDef *
hpcd, uint8_t ep_addr)
Function description
Get Received Data Size.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
Return values
Data: Size
HAL_PCD_EP_SetStall
Function name
HAL_StatusTypeDef HAL_PCD_EP_SetStall
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr)
Function description
Set a STALL condition over an endpoint.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
Return values
HAL: status
HAL_PCD_EP_ClrStall
Function name
HAL_StatusTypeDef HAL_PCD_EP_ClrStall
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr)
Function description
Clear a STALL condition over in an endpoint.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
Return values
HAL: status
HAL_PCD_EP_Flush
Function name
HAL_StatusTypeDef HAL_PCD_EP_Flush
(PCD_HandleTypeDef * hpcd, uint8_t ep_addr)
Function description
Flush an endpoint.
Parameters
hpcd: PCD handle
ep_addr: endpoint address
Return values
HAL: status
HAL_PCD_ActivateRemoteWakeup
Function name
HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup
(PCD_HandleTypeDef * hpcd)
Function description
HAL_PCD_ActivateRemoteWakeup : active remote wakeup
signalling.
Parameters
hpcd: PCD handle
Return values
status:
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HAL_PCD_DeActivateRemoteWakeup
Function name
HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup
(PCD_HandleTypeDef * hpcd)
Function description
HAL_PCD_DeActivateRemoteWakeup : de-active remote wakeup
signalling.
Parameters
hpcd: PCD handle
Return values
status:
PCD_WritePMA
Function name
void PCD_WritePMA (USB_TypeDef * USBx, uint8_t *
pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
Function description
Copy a buffer from user memory area to packet memory area
(PMA)
Parameters
USBx: USB device
pbUsrBuf: pointer to user memory area.
wPMABufAddr: address into PMA.
wNBytes: no. of bytes to be copied.
Return values
None
PCD_ReadPMA
Function name
void PCD_ReadPMA (USB_TypeDef * USBx, uint8_t *
pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
Function description
Copy a buffer from user memory area to packet memory area
(PMA)
Parameters
USBx: USB device
pbUsrBuf: pointer to user memory area.
wPMABufAddr: address into PMA.
wNBytes: no. of bytes to be copied.
Return values
None
HAL_PCD_GetState
Function name
PCD_StateTypeDef HAL_PCD_GetState (PCD_HandleTypeDef
* hpcd)
Function description
Return the PCD state.
Parameters
hpcd: PCD handle
Return values
HAL: state
32.3 PCD Firmware driver defines
32.3.1 PCD
PCD End Point
PCD_ENDP0
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PCD_ENDP1
PCD_ENDP2
PCD_ENDP3
PCD_ENDP4
PCD_ENDP5
PCD_ENDP6
PCD_ENDP7
PCD_SNG_BUF
PCD_DBL_BUF
IS_PCD_ALL_INSTANCE
PCD Interrupt
__HAL_PCD_GET_FLAG
__HAL_PCD_CLEAR_FLAG
USB_WAKEUP_EXTI_LINE
External interrupt line 18 Connected to the
USB FS EXTI Line
__HAL_USB_WAKEUP_EXTI_ENABLE_IT
__HAL_USB_WAKEUP_EXTI_DISABLE_IT
__HAL_USB_EXTI_GENERATE_SWIT
PCD_SET_ENDPOINT
PCD_GET_ENDPOINT
PCD_SET_EPTYPE
Description:
sets the type in the endpoint
register(bits EP_TYPE[1:0])
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wType: Endpoint Type.
Return value:
None
PCD_GET_EPTYPE
Description:
gets the type in the endpoint
register(bits EP_TYPE[1:0])
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
Endpoint: Type
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PCD_FreeUserBuffer
Description:
free buffer used from the application
realizing it to the line toggles bit
SW_BUF in the double buffered
endpoint register
Parameters:
USBx: USB device.
bEpNum
Return value:
None
PCD_GET_DB_DIR
Description:
gets direction of the double buffered
endpoint
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
EP_DBUF_OUT: if the endpoint
counter not yet programmed.
PCD_SET_EP_TX_STATUS
Description:
sets the status for tx transfer (bits
STAT_TX[1:0]).
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wState: new state
Return value:
None
PCD_SET_EP_RX_STATUS
Description:
sets the status for rx transfer (bits
STAT_TX[1:0])
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wState: new state
Return value:
None
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PCD_SET_EP_TXRX_STATUS
Description:
sets the status for rx & tx (bits
STAT_TX[1:0] & STAT_RX[1:0])
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wStaterx: new state.
wStatetx: new state.
Return value:
None
PCD_GET_EP_TX_STATUS
Description:
gets the status for tx/rx transfer (bits
STAT_TX[1:0] /STAT_RX[1:0])
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
status
PCD_GET_EP_RX_STATUS
PCD_SET_EP_TX_VALID
Description:
sets directly the VALID tx/rx-status into
the endpoint register
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_SET_EP_RX_VALID
PCD_GET_EP_TX_STALL_STATUS
Description:
checks stall condition in an endpoint.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
TRUE: = endpoint in stall condition.
PCD_GET_EP_RX_STALL_STATUS
PCD_SET_EP_KIND
Description:
set & clear EP_KIND bit.
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Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_CLEAR_EP_KIND
PCD_SET_OUT_STATUS
Description:
Sets/clears directly STATUS_OUT bit
in the endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_CLEAR_OUT_STATUS
PCD_SET_EP_DBUF
Description:
Sets/clears directly EP_KIND bit in the
endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_CLEAR_EP_DBUF
PCD_CLEAR_RX_EP_CTR
Description:
Clears bit CTR_RX / CTR_TX in the
endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_CLEAR_TX_EP_CTR
PCD_RX_DTOG
Description:
Toggles DTOG_RX / DTOG_TX bit in
the endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
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Return value:
None
PCD_TX_DTOG
PCD_CLEAR_RX_DTOG
Description:
Clears DTOG_RX / DTOG_TX bit in the
endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_CLEAR_TX_DTOG
PCD_SET_EP_ADDRESS
Description:
Sets address in an endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
bAddr: Address.
Return value:
None
PCD_GET_EP_ADDRESS
Description:
Gets address in an endpoint register.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_EP_TX_ADDRESS
PCD_EP_TX_CNT
PCD_EP_RX_ADDRESS
PCD_EP_RX_CNT
PCD_SET_EP_TX_ADDRESS
Description:
sets address of the tx/rx buffer.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wAddr: address to be set (must be
word aligned).
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Return value:
None
PCD_SET_EP_RX_ADDRESS
PCD_GET_EP_TX_ADDRESS
Description:
Gets address of the tx/rx buffer.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
address: of the buffer.
PCD_GET_EP_RX_ADDRESS
PCD_CALC_BLK32
Description:
Sets counter of rx buffer with no.
Parameters:
dwReg: Register.
wCount: Counter.
wNBlocks: Nb of block
Return value:
None
PCD_CALC_BLK2
PCD_SET_EP_CNT_RX_REG
PCD_SET_EP_RX_DBUF0_CNT
PCD_SET_EP_TX_CNT
Description:
sets counter for the tx/rx buffer.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wCount: Counter value.
Return value:
None
PCD_SET_EP_RX_CNT
PCD_GET_EP_TX_CNT
Description:
gets counter of the tx buffer.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
Counter: value
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PCD_GET_EP_RX_CNT
PCD_SET_EP_DBUF0_ADDR
Description:
Sets buffer 0/1 address in a double
buffer endpoint.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wBuf0Addr: buffer 0 address.
Return value:
Counter: value
PCD_SET_EP_DBUF1_ADDR
PCD_SET_EP_DBUF_ADDR
Description:
Sets addresses in a double buffer
endpoint.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
wBuf0Addr: buffer 0 address.
wBuf1Addr: = buffer 1 address.
Return value:
None
PCD_GET_EP_DBUF0_ADDR
Description:
Gets buffer 0/1 address of a double
buffer endpoint.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_GET_EP_DBUF1_ADDR
PCD_SET_EP_DBUF0_CNT
Description:
Gets buffer 0/1 address of a double
buffer endpoint.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
bDir: endpoint dir EP_DBUF_OUT =
OUT and EP_DBUF_IN = IN
wCount: Counter value
Return value:
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None
PCD_SET_EP_DBUF1_CNT
PCD_SET_EP_DBUF_CNT
PCD_GET_EP_DBUF0_CNT
Description:
Gets buffer 0/1 rx/tx counter for double
buffering.
Parameters:
USBx: USB device.
bEpNum: Endpoint Number.
Return value:
None
PCD_GET_EP_DBUF1_CNT
PCD Speed
PCD_SPEED_HIGH
PCD_SPEED_FULL
PCD USB Core PHY
PCD_PHY_EMBEDDED
PCD USB EP0 MPS
DEP0CTL_MPS_64
DEP0CTL_MPS_32
DEP0CTL_MPS_16
DEP0CTL_MPS_8
PCD_EP0MPS_64
PCD_EP0MPS_32
PCD_EP0MPS_16
PCD_EP0MPS_08
PCD USB EP Type
PCD_EP_TYPE_CTRL
PCD_EP_TYPE_ISOC
PCD_EP_TYPE_BULK
PCD_EP_TYPE_INTR
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33 HAL PCD Extension Driver
33.1 PCDEx Firmware driver API description
33.1.1 Peripheral extended features functions
This section contains the following APIs:
HAL_PCDEx_PMAConfig()
HAL_PCDEx_ActivateBCD()
HAL_PCDEx_DeActivateBCD()
HAL_PCDEx_BCD_VBUSDetect()
HAL_PCDEx_ActivateLPM()
HAL_PCDEx_DeActivateLPM()
HAL_PCDEx_LPM_Callback()
HAL_PCDEx_BCD_Callback()
33.1.2 Detailed description of functions
HAL_PCDEx_PMAConfig
Function name
HAL_StatusTypeDef HAL_PCDEx_PMAConfig
(PCD_HandleTypeDef * hpcd, uint16_t ep_addr, uint16_t
ep_kind, uint32_t pmaadress)
Function description
Configure PMA for EP.
Parameters
hpcd: : Device instance
ep_addr: endpoint address
ep_kind: endpoint Kind USB_SNG_BUF: Single Buffer used
USB_DBL_BUF: Double Buffer used
pmaadress: EP address in The PMA: In case of single buffer
endpoint this parameter is 16-bit value providing the address
in PMA allocated to endpoint. In case of double buffer
endpoint this parameter is a 32-bit value providing the
endpoint buffer 0 address in the LSB part of 32-bit value and
endpoint buffer 1 address in the MSB part of 32-bit value.
Return values
:: status
HAL_PCDEx_ActivateLPM
Function name
HAL_StatusTypeDef HAL_PCDEx_ActivateLPM
(PCD_HandleTypeDef * hpcd)
Function description
Activate LPM feature.
Parameters
hpcd: PCD handle
Return values
HAL: status
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HAL_PCDEx_DeActivateLPM
Function name
HAL_StatusTypeDef HAL_PCDEx_DeActivateLPM
(PCD_HandleTypeDef * hpcd)
Function description
Deactivate LPM feature.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCDEx_ActivateBCD
Function name
HAL_StatusTypeDef HAL_PCDEx_ActivateBCD
(PCD_HandleTypeDef * hpcd)
Function description
Activate BatteryCharging feature.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCDEx_DeActivateBCD
Function name
HAL_StatusTypeDef HAL_PCDEx_DeActivateBCD
(PCD_HandleTypeDef * hpcd)
Function description
Deactivate BatteryCharging feature.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCDEx_BCD_VBUSDetect
Function name
void HAL_PCDEx_BCD_VBUSDetect (PCD_HandleTypeDef *
hpcd)
Function description
Handle BatteryCharging Process.
Parameters
hpcd: PCD handle
Return values
HAL: status
HAL_PCDEx_LPM_Callback
Function name
void HAL_PCDEx_LPM_Callback (PCD_HandleTypeDef *
hpcd, PCD_LPM_MsgTypeDef msg)
Function description
Send LPM message to user layer callback.
Parameters
hpcd: PCD handle
msg: LPM message
Return values
HAL: status
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HAL_PCDEx_BCD_Callback
Function name
void HAL_PCDEx_BCD_Callback (PCD_HandleTypeDef *
hpcd, PCD_BCD_MsgTypeDef msg)
Function description
Send BatteryCharging message to user layer callback.
Parameters
hpcd: PCD handle
msg: LPM message
Return values
HAL: status
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34 HAL PWR Generic Driver
34.1 PWR Firmware driver registers structures
34.1.1 PWR_PVDTypeDef
Data Fields
uint32_t PVDLevel
uint32_t Mode
Field Documentation
uint32_t PWR_PVDTypeDef::PVDLevel
PVDLevel: Specifies the PVD detection level. This parameter can be a value of
PWR_PVD_detection_level
uint32_t PWR_PVDTypeDef::Mode
Mode: Specifies the operating mode for the selected pins. This parameter can be a
value of PWR_PVD_Mode
34.2 PWR Firmware driver API description
34.2.1 Initialization and de-initialization functions
This section contains the following APIs:
HAL_PWR_DeInit()
HAL_PWR_EnableBkUpAccess()
HAL_PWR_DisableBkUpAccess()
34.2.2 Peripheral Control functions
Backup domain
After reset, the backup domain (RTC registers, RTC backup data registers) is protected
against possible unwanted write accesses. To enable access to the RTC Domain and RTC
registers, proceed as follows:
Enable the Power Controller (PWR) APB1 interface clock using the
__HAL_RCC_PWR_CLK_ENABLE() macro.
Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
PVD configuration
The PVD is used to monitor the VDD power supply by comparing it to a threshold
selected by the PVD Level (PLS[2:0] bits in the PWR_CR).
The PVD can use an external input analog voltage (PVD_IN) which is compared
internally to VREFINT. The PVD_IN (PB7) has to be configured in Analog mode when
PWR_PVDLevel_7 is selected (PLS[2:0] = 111).
A PVDO flag is available to indicate if VDD/VDDA is higher or lower than the PVD
threshold. This event is internally connected to the EXTI line16 and can generate an
interrupt if enabled. This is done through __HAL_PWR_PVD_EXTI_ENABLE_IT()
macro.
The PVD is stopped in Standby mode.
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WakeUp pin configuration
WakeUp pin is used to wake up the system from Standby mode. This pin is forced in
input pull-down configuration and is active on rising edges.
There are two WakeUp pins: WakeUp Pin 1 on PA.00. WakeUp Pin 2 on PC.13.
WakeUp Pin 3 on PE.06 .
Main and Backup Regulators configuration
Low Power modes configuration
The device features 5 low-power modes:
Low power run mode: regulator in low power mode, limited clock frequency, limited
number of peripherals running.
Sleep mode: Cortex-M0+ core stopped, peripherals kept running.
Low power sleep mode: Cortex-M0+ core stopped, limited clock frequency, limited
number of peripherals running, regulator in low power mode.
Stop mode: All clocks are stopped, regulator running, regulator in low power mode.
Standby mode: VCORE domain powered off
Low power run mode
To further reduce the consumption when the system is in Run mode, the regulator can be
configured in low power mode. In this mode, the system frequency should not exceed MSI
frequency range1. In Low power run mode, all I/O pins keep the same state as in Run
mode.
Entry:
VCORE in range2
Decrease the system frequency not to exceed the frequency of MSI frequency
range1.
The regulator is forced in low power mode using the
HAL_PWREx_EnableLowPowerRunMode() function.
Exit:
The regulator is forced in Main regulator mode using the
HAL_PWREx_DisableLowPowerRunMode() function.
Increase the system frequency if needed.
Sleep mode
Entry: The Sleep mode is entered by using the
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON,
PWR_SLEEPENTRY_WFx) functions with
PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
Exit:
Any peripheral interrupt acknowledged by the nested vectored interrupt controller
(NVIC) can wake up the device from Sleep mode. If the WFE instruction was
used to enter sleep mode, the MCU exits Sleep mode as soon as an event
occurs.
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Low power sleep mode
Entry: The Low power sleep mode is entered by using the
HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON,
PWR_SLEEPENTRY_WFx) functions with
PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
The Flash memory can be switched off by using the control bits (SLEEP_PD in the
FLASH_ACR register. This reduces power consumption but increases the wake-up
time.
Exit:
If the WFI instruction was used to enter Low power sleep mode, any peripheral
interrupt acknowledged by the nested vectored interrupt controller (NVIC) can
wake up the device from Low power sleep mode. If the WFE instruction was used
to enter Low power sleep mode, the MCU exits Sleep mode as soon as an event
occurs.
Stop mode
The Stop mode is based on the Cortex-M0+ deepsleep mode combined with peripheral
clock gating. The voltage regulator can be configured either in normal or low-power mode.
In Stop mode, all clocks in the VCORE domain are stopped, the PLL, the MSI, the HSI and
the HSE RC oscillators are disabled. Internal SRAM and register contents are preserved.
To get the lowest consumption in Stop mode, the internal Flash memory also enters low
power mode. When the Flash memory is in power-down mode, an additional startup delay
is incurred when waking up from Stop mode. To minimize the consumption In Stop mode,
VREFINT, the BOR, PVD, and temperature sensor can be switched off before entering
Stop mode. They can be switched on again by software after exiting Stop mode using the
ULP bit in the PWR_CR register. In Stop mode, all I/O pins keep the same state as in Run
mode.
Entry: The Stop mode is entered using the HAL_PWR_EnterSTOPMode function with:
Main regulator ON.
Low Power regulator ON.
PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction
PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction
Exit:
By issuing an interrupt or a wakeup event, the MSI or HSI16 RC oscillator is
selected as system clock depending the bit STOPWUCK in the RCC_CFGR
register
Standby mode
The Standby mode allows to achieve the lowest power consumption. It is based on the
Cortex-M0+ deepsleep mode, with the voltage regulator disabled. The VCORE domain is
consequently powered off. The PLL, the MSI, the HSI oscillator and the HSE oscillator are
also switched off. SRAM and register contents are lost except for the RTC registers, RTC
backup registers and Standby circuitry. To minimize the consumption In Standby mode,
VREFINT, the BOR, PVD, and temperature sensor can be switched off before entering the
Standby mode. They can be switched on again by software after exiting the Standby mode.
function.
Entry:
The Standby mode is entered using the HAL_PWR_EnterSTANDBYMode()
function.
Exit:
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WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup, tamper
event, time-stamp event, external reset in NRST pin, IWDG reset.
Auto-wakeup (AWU) from low-power mode
The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC
Wakeup event, a tamper event, a time-stamp event, or a comparator event, without
depending on an external interrupt (Auto-wakeup mode).
RTC auto-wakeup (AWU) from the Stop mode
To wake up from the Stop mode with an RTC alarm event, it is necessary to:
Configure the EXTI Line 17 to be sensitive to rising edges (Interrupt or Event
modes) using the EXTI_Init() function.
Enable the RTC Alarm Interrupt using the RTC_ITConfig() function
Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
To wake up from the Stop mode with an RTC Tamper or time stamp event, it is
necessary to:
Configure the EXTI Line 19 to be sensitive to rising edges (Interrupt or Event
modes) using the EXTI_Init() function.
Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function.
Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and
RTC_TamperCmd() functions.
To wake up from the Stop mode with an RTC WakeUp event, it is necessary to:
Configure the EXTI Line 20 to be sensitive to rising edges (Interrupt or Event
modes) using the EXTI_Init() function.
Enable the RTC WakeUp Interrupt using the RTC_ITConfig() function.
Configure the RTC to generate the RTC WakeUp event using the
RTC_WakeUpClockConfig(), RTC_SetWakeUpCounter() and
RTC_WakeUpCmd() functions.
RTC auto-wakeup (AWU) from the Standby mode
To wake up from the Standby mode with an RTC alarm event, it is necessary to:
Enable the RTC Alarm Interrupt using the RTC_ITConfig() function.
Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
To wake up from the Standby mode with an RTC Tamper or time stamp event, it
is necessary to:
Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function.
Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and
RTC_TamperCmd() functions.
To wake up from the Standby mode with an RTC WakeUp event, it is necessary
to:
Enable the RTC WakeUp Interrupt using the RTC_ITConfig() function
Configure the RTC to generate the RTC WakeUp event using the
RTC_WakeUpClockConfig(), RTC_SetWakeUpCounter() and
RTC_WakeUpCmd() functions.
Comparator auto-wakeup (AWU) from the Stop mode
To wake up from the Stop mode with an comparator 1 or comparator 2 wakeup
event, it is necessary to:
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Configure the EXTI Line 21 for comparator 1 or EXTI Line 22 for comparator
2 to be sensitive to to the selected edges (falling, rising or falling and rising)
(Interrupt or Event modes) using the EXTI_Init() function.
Configure the comparator to generate the event.
This section contains the following APIs:
HAL_PWR_EnableBkUpAccess()
HAL_PWR_DisableBkUpAccess()
HAL_PWR_ConfigPVD()
HAL_PWR_EnablePVD()
HAL_PWR_DisablePVD()
HAL_PWR_EnableWakeUpPin()
HAL_PWR_DisableWakeUpPin()
HAL_PWR_EnterSLEEPMode()
HAL_PWR_EnterSTOPMode()
HAL_PWR_EnterSTANDBYMode()
HAL_PWR_EnableSleepOnExit()
HAL_PWR_DisableSleepOnExit()
HAL_PWR_EnableSEVOnPend()
HAL_PWR_DisableSEVOnPend()
HAL_PWR_PVD_IRQHandler()
HAL_PWR_PVDCallback()
34.2.3 Detailed description of functions
HAL_PWR_DeInit
Function name
void HAL_PWR_DeInit (void )
Function description
Deinitializes the HAL PWR peripheral registers to their default
reset values.
Return values
None
HAL_PWR_EnableBkUpAccess
Function name
void HAL_PWR_EnableBkUpAccess (void )
Function description
Enables access to the backup domain (RTC registers, RTC
backup data registers ).
Return values
None
Notes
If the HSE divided by 2, 4, 8 or 16 is used as the RTC clock,
the Backup Domain Access should be kept enabled.
HAL_PWR_DisableBkUpAccess
Function name
void HAL_PWR_DisableBkUpAccess (void )
Function description
Disables access to the backup domain.
Return values
None
Notes
Applies to RTC registers, RTC backup data registers.
If the HSE divided by 2, 4, 8 or 16 is used as the RTC clock,
the Backup Domain Access should be kept enabled.
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HAL_PWR_ConfigPVD
Function name
void HAL_PWR_ConfigPVD (PWR_PVDTypeDef * sConfigPVD)
Function description
Configures the voltage threshold detected by the Power Voltage
Detector(PVD).
Parameters
sConfigPVD: pointer to an PWR_PVDTypeDef structure that
contains the configuration information for the PVD.
Return values
None
Notes
Refer to the electrical characteristics of your device datasheet
for more details about the voltage threshold corresponding to
each detection level.
HAL_PWR_EnablePVD
Function name
void HAL_PWR_EnablePVD (void )
Function description
Enables the Power Voltage Detector(PVD).
Return values
None
HAL_PWR_DisablePVD
Function name
void HAL_PWR_DisablePVD (void )
Function description
Disables the Power Voltage Detector(PVD).
Return values
None
HAL_PWR_PVD_IRQHandler
Function name
void HAL_PWR_PVD_IRQHandler (void )
Function description
This function handles the PWR PVD interrupt request.
Return values
None
Notes
This API should be called under the PVD_IRQHandler().
HAL_PWR_PVDCallback
Function name
void HAL_PWR_PVDCallback (void )
Function description
PWR PVD interrupt callback.
Return values
None
HAL_PWR_EnableWakeUpPin
Function name
void HAL_PWR_EnableWakeUpPin (uint32_t WakeUpPinx)
Function description
Enables the WakeUp PINx functionality.
Parameters
WakeUpPinx: Specifies the Power Wake-Up pin to enable.
This parameter can be one of the following values:
PWR_WAKEUP_PIN1
PWR_WAKEUP_PIN2
PWR_WAKEUP_PIN3 for stm32l07xxx and stm32l08xxx
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devices only.
Return values
None
HAL_PWR_DisableWakeUpPin
Function name
void HAL_PWR_DisableWakeUpPin (uint32_t WakeUpPinx)
Function description
Disables the WakeUp PINx functionality.
Parameters
WakeUpPinx: Specifies the Power Wake-Up pin to disable.
This parameter can be one of the following values:
PWR_WAKEUP_PIN1
PWR_WAKEUP_PIN2
PWR_WAKEUP_PIN3 for stm32l07xxx and stm32l08xxx
devices only.
Return values
None
HAL_PWR_EnterSTOPMode
Function name
void HAL_PWR_EnterSTOPMode (uint32_t Regulator, uint8_t
STOPEntry)
Function description
Enters Stop mode.
Parameters
Regulator: Specifies the regulator state in Stop mode. This
parameter can be one of the following values:
PWR_MAINREGULATOR_ON: Stop mode with
regulator ON
PWR_LOWPOWERREGULATOR_ON: Stop mode with
low power regulator ON
STOPEntry: Specifies if Stop mode in entered with WFI or
WFE instruction. This parameter can be one of the following
values:
PWR_STOPENTRY_WFI: Enter Stop mode with WFI
instruction
PWR_STOPENTRY_WFE: Enter Stop mode with WFE
instruction
Return values
None
Notes
In Stop mode, all I/O pins keep the same state as in Run
mode.
When exiting Stop mode by issuing an interrupt or a wakeup
event, MSI or HSI16 RCoscillator is selected as system clock
depending the bit STOPWUCK in the RCC_CFGR register.
When the voltage regulator operates in low power mode, an
additional startup delay is incurred when waking up from Stop
mode. By keeping the internal regulator ON during Stop
mode, the consumption is higher although the startup time is
reduced.
Before entering in this function, it is important to ensure that
the WUF wakeup flag is cleared. To perform this action, it is
possible to call the following macro :
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU)
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HAL_PWR_EnterSLEEPMode
Function name
void HAL_PWR_EnterSLEEPMode (uint32_t Regulator, uint8_t
SLEEPEntry)
Function description
Enters Sleep mode.
Parameters
Regulator: Specifies the regulator state in SLEEP mode.
This parameter can be one of the following values:
PWR_MAINREGULATOR_ON: SLEEP mode with
regulator ON
PWR_LOWPOWERREGULATOR_ON: SLEEP mode
with low power regulator ON
SLEEPEntry: Specifies if SLEEP mode is entered with WFI
or WFE instruction. When WFI entry is used, tick interrupt
have to be disabled if not desired as the interrupt wake up
source. This parameter can be one of the following values:
PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI
instruction
PWR_SLEEPENTRY_WFE: enter SLEEP mode with
WFE instruction
Return values
None
Notes
In Sleep mode, all I/O pins keep the same state as in Run
mode.
HAL_PWR_EnterSTANDBYMode
Function name
void HAL_PWR_EnterSTANDBYMode (void )
Function description
Enters Standby mode.
Return values
None
Notes
In Standby mode, all I/O pins are high impedance except for:
Reset pad (still available)RTC_AF1 pin (PC13) if configured
for tamper, time-stamp, RTC Alarm out, or RTC clock
calibration out.RTC_AF2 pin (PC13) if configured for
tamper.WKUP pin 1 (PA00) if enabled.WKUP pin 2 (PC13) if
enabled.WKUP pin 3 (PE06) if enabled, for stm32l07xxx and
stm32l08xxx devices only.WKUP pin 3 (PA02) if enabled, for
stm32l031xx devices only.
HAL_PWR_EnableSleepOnExit
Function name
void HAL_PWR_EnableSleepOnExit (void )
Function description
Indicates Sleep-On-Exit when returning from Handler mode to
Thread mode.
Return values
None
Notes
Set SLEEPONEXIT bit of SCR register. When this bit is set,
the processor re-enters SLEEP mode when an interruption
handling is over. Setting this bit is useful when the processor
is expected to run only on interruptions handling.
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HAL_PWR_DisableSleepOnExit
Function name
void HAL_PWR_DisableSleepOnExit (void )
Function description
Disables Sleep-On-Exit feature when returning from Handler mode
to Thread mode.
Return values
None
Notes
Clears SLEEPONEXIT bit of SCR register. When this bit is
set, the processor re-enters SLEEP mode when an
interruption handling is over.
HAL_PWR_EnableSEVOnPend
Function name
void HAL_PWR_EnableSEVOnPend (void )
Function description
Enables CORTEX M0+ SEVONPEND bit.
Return values
None
Notes
Sets SEVONPEND bit of SCR register. When this bit is set,
this causes WFE to wake up when an interrupt moves from
inactive to pended.
HAL_PWR_DisableSEVOnPend
Function name
void HAL_PWR_DisableSEVOnPend (void )
Function description
Disables CORTEX M0+ SEVONPEND bit.
Return values
None
Notes
Clears SEVONPEND bit of SCR register. When this bit is set,
this causes WFE to wake up when an interrupt moves from
inactive to pended.
34.3 PWR Firmware driver defines
34.3.1 PWR
PWR Exported Macros
__HAL_PWR_VOLTAGESCALING_CONFIG
Description:
macros configure the main internal
regulator output voltage.
Parameters:
__REGULATOR__: specifies the
regulator output voltage to achieve a
tradeoff between performance and
power consumption when the device
does not operate at the maximum
frequency (refer to the datasheets for
more details). This parameter can be
one of the following values:
PWR_REGULATOR_VOLTAG
E_SCALE1: Regulator voltage
output Scale 1 mode, System
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frequency up to 32 MHz.
PWR_REGULATOR_VOLTAG
E_SCALE2: Regulator voltage
output Scale 2 mode, System
frequency up to 16 MHz.
PWR_REGULATOR_VOLTAG
E_SCALE3: Regulator voltage
output Scale 3 mode, System
frequency up to 4.2 MHz
Return value:
None
__HAL_PWR_GET_FLAG
Description:
Check PWR flag is set or not.
Parameters:
__FLAG__: specifies the flag to
check. This parameter can be one of
the following values:
PWR_FLAG_WU: Wake Up
flag. This flag indicates that a
wakeup event was received
from the WKUP pin or from the
RTC alarm (Alarm B), RTC
Tamper event, RTC TimeStamp
event or RTC Wakeup. An
additional wakeup event is
detected if the WKUP pin is
enabled (by setting the EWUP
bit) when the WKUP pin level is
already high.
PWR_FLAG_SB: StandBy flag.
This flag indicates that the
system was resumed from
StandBy mode.
PWR_FLAG_PVDO: PVD
Output. This flag is valid only if
PVD is enabled by the
HAL_PWR_EnablePVD()
function. The PVD is stopped by
Standby mode. For this reason,
this bit is equal to 0 after
Standby or reset until the PVDE
bit is set.
PWR_FLAG_VREFINTRDY:
Internal voltage reference
(VREFINT) ready flag. This bit
indicates the state of the
internal voltage reference,
VREFINT.
PWR_FLAG_VOS: Voltage
Scaling select flag. A delay is
required for the internal
regulator to be ready after the
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voltage range is changed. The
VOSF bit indicates that the
regulator has reached the
voltage level defined with bits
VOS of PWR_CR register.
PWR_FLAG_REGLP: Regulator
LP flag. When the MCU exits
from Low power run mode, this
bit stays at 1 until the regulator
is ready in main mode. A polling
on this bit is recommended to
wait for the regulator main
mode. This bit is reset by
hardware when the regulator is
ready.
Return value:
The: new state of __FLAG__ (TRUE
or FALSE).
__HAL_PWR_CLEAR_FLAG
Description:
Clear the PWR pending flags.
Parameters:
__FLAG__: specifies the flag to
clear. This parameter can be one of
the following values:
PWR_FLAG_WU: Wake Up flag
PWR_FLAG_SB: StandBy flag
__HAL_PWR_PVD_EXTI_ENABLE_IT
Description:
Enable interrupt on PVD Exti Line
16.
Return value:
None.
__HAL_PWR_PVD_EXTI_DISABLE_IT
Description:
Disable interrupt on PVD Exti Line
16.
Return value:
None.
__HAL_PWR_PVD_EXTI_ENABLE_EVENT
Description:
Enable event on PVD Exti Line 16.
Return value:
None.
__HAL_PWR_PVD_EXTI_DISABLE_EVENT
Description:
Disable event on PVD Exti Line 16.
Return value:
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None.
__HAL_PWR_PVD_EXTI_ENABLE_FALLING
_EDGE
Description:
PVD EXTI line configuration: set
falling edge trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_DISABLE_
FALLING_EDGE
Description:
Disable the PVD Extended Interrupt
Falling Trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_ENABLE_RISING_
EDGE
Description:
PVD EXTI line configuration: set
rising edge trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_DISABLE_RISING
_EDGE
Description:
Disable the PVD Extended Interrupt
Rising Trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_ENABLE_RISING_
FALLING_EDGE
Description:
PVD EXTI line configuration: set
rising & falling edge trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_DISABLE_RISING
_FALLING_EDGE
Description:
Disable the PVD Extended Interrupt
Rising & Falling Trigger.
Return value:
None.
__HAL_PWR_PVD_EXTI_GET_FLAG
Description:
Check whether the specified PVD
EXTI interrupt flag is set or not.
Return value:
EXTI: PVD Line Status.
__HAL_PWR_PVD_EXTI_CLEAR_FLAG
Description:
Clear the PVD EXTI flag.
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Return value:
None.
__HAL_PWR_PVD_EXTI_GENERATE_SWIT
Description:
Generate a Software interrupt on
selected EXTI line.
Return value:
None.
__HAL_PWR_PVD_EXTI_GENERATE_SWIT
Description:
Generate a Software interrupt on
selected EXTI line.
Return value:
None.
PWREx Flag Setting Time Out Value
PWR_FLAG_SETTING_DELAY_US
PWR Flag
PWR_FLAG_WU
PWR_FLAG_SB
PWR_FLAG_PVDO
PWR_FLAG_VREFINTRDY
PWR_FLAG_VOS
PWR_FLAG_REGLP
PVD detection level
PWR_PVDLEVEL_0
PWR_PVDLEVEL_1
PWR_PVDLEVEL_2
PWR_PVDLEVEL_3
PWR_PVDLEVEL_4
PWR_PVDLEVEL_5
PWR_PVDLEVEL_6
PWR_PVDLEVEL_7
PWR PVD Mode
PWR_PVD_MODE_NORMAL
basic mode is used
PWR_PVD_MODE_IT_RISING
External Interrupt Mode with Rising edge
trigger detection
PWR_PVD_MODE_IT_FALLING
External Interrupt Mode with Falling
edge trigger detection
PWR_PVD_MODE_IT_RISING_FALLING
External Interrupt Mode with
Rising/Falling edge trigger detection
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PWR_PVD_MODE_EVENT_RISING
Event Mode with Rising edge trigger
detection
PWR_PVD_MODE_EVENT_FALLING
Event Mode with Falling edge trigger
detection
PWR_PVD_MODE_EVENT_RISING_FALLING
Event Mode with Rising/Falling edge
trigger detection
PWR PVD Mode Mask
PVD_MODE_IT
PVD_MODE_EVT
PVD_RISING_EDGE
PVD_FALLING_EDGE
PWR Register alias address
PWR_WAKEUP_PIN1
PWR_WAKEUP_PIN2
PWR_WAKEUP_PIN3
PWR Regulator state in SLEEP/STOP mode
PWR_MAINREGULATOR_ON
PWR_LOWPOWERREGULATOR_ON
PWR Regulator Voltage Scale
PWR_REGULATOR_VOLTAGE_SCALE1
PWR_REGULATOR_VOLTAGE_SCALE2
PWR_REGULATOR_VOLTAGE_SCALE3
IS_PWR_VOLTAGE_SCALING_RANGE
PWR SLEEP mode entry
PWR_SLEEPENTRY_WFI
PWR_SLEEPENTRY_WFE
PWR STOP mode entry
PWR_STOPENTRY_WFI
PWR_STOPENTRY_WFE
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35 HAL PWR Extension Driver
35.1 PWREx Firmware driver defines
35.1.1 PWREx
PWREx Exported Macros
__HAL_PWR_FLASHWAKEUP_ENABLE
Notes:
When entering low power mode (stop or
standby only), if DS_EE_KOFF and
RUN_PD of FLASH_ACR register are
both set , the Flash memory will not be
woken up when exiting from deep-sleep
mode.
__HAL_PWR_FLASHWAKEUP_DISABLE
Notes:
When entering low power mode (stop or
standby only), if DS_EE_KOFF and
RUN_PD of FLASH_ACR register are
both set , the Flash memory will not be
woken up when exiting from deep-sleep
mode.
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36 HAL RCC Generic Driver
36.1 RCC Firmware driver registers structures
36.1.1 RCC_PLLInitTypeDef
Data Fields
uint32_t PLLState
uint32_t PLLSource
uint32_t PLLMUL
uint32_t PLLDIV
Field Documentation
uint32_t RCC_PLLInitTypeDef::PLLState
PLLState: The new state of the PLL. This parameter can be a value of
RCC_PLL_Config
uint32_t RCC_PLLInitTypeDef::PLLSource
PLLSource: PLL entry clock source. This parameter must be a value of
RCC_PLL_Clock_Source
uint32_t RCC_PLLInitTypeDef::PLLMUL
PLLMUL: Multiplication factor for PLL VCO input clock This parameter must be a
value of RCC_PLL_Multiplication_Factor
uint32_t RCC_PLLInitTypeDef::PLLDIV
PLLDIV: Division factor for PLL VCO input clock This parameter must be a value of
RCC_PLL_Division_Factor
36.1.2 RCC_OscInitTypeDef
Data Fields
uint32_t OscillatorType
uint32_t HSEState
uint32_t LSEState
uint32_t HSIState
uint32_t HSICalibrationValue
uint32_t LSIState
uint32_t HSI48State
uint32_t MSIState
uint32_t MSICalibrationValue
uint32_t MSIClockRange
RCC_PLLInitTypeDef PLL
Field Documentation
uint32_t RCC_OscInitTypeDef::OscillatorType
The oscillators to be configured. This parameter can be a value of
RCC_Oscillator_Type
uint32_t RCC_OscInitTypeDef::HSEState
The new state of the HSE. This parameter can be a value of RCC_HSE_Config
uint32_t RCC_OscInitTypeDef::LSEState
The new state of the LSE. This parameter can be a value of RCC_LSE_Config
uint32_t RCC_OscInitTypeDef::HSIState
The new state of the HSI. This parameter can be a value of RCC_HSI_Config
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uint32_t RCC_OscInitTypeDef::HSICalibrationValue
The HSI calibration trimming value (default is RCC_HSICALIBRATION_DEFAULT).
This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x1F
uint32_t RCC_OscInitTypeDef::LSIState
The new state of the LSI. This parameter can be a value of RCC_LSI_Config
uint32_t RCC_OscInitTypeDef::HSI48State
The new state of the HSI48. This parameter can be a value of RCC_HSI48_Config
uint32_t RCC_OscInitTypeDef::MSIState
The new state of the MSI. This parameter can be a value of RCC_MSI_Config
uint32_t RCC_OscInitTypeDef::MSICalibrationValue
The MSI calibration trimming value. (default is RCC_MSICALIBRATION_DEFAULT).
This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF
uint32_t RCC_OscInitTypeDef::MSIClockRange
The MSI frequency range. This parameter can be a value of RCC_MSI_Clock_Range
RCC_PLLInitTypeDef RCC_OscInitTypeDef::PLL
PLL structure parameters
36.1.3 RCC_ClkInitTypeDef
Data Fields
uint32_t ClockType
uint32_t SYSCLKSource
uint32_t AHBCLKDivider
uint32_t APB1CLKDivider
uint32_t APB2CLKDivider
Field Documentation
uint32_t RCC_ClkInitTypeDef::ClockType
The clock to be configured. This parameter can be a value of
RCC_System_Clock_Type
uint32_t RCC_ClkInitTypeDef::SYSCLKSource
The clock source (SYSCLKS) used as system clock. This parameter can be a value of
RCC_System_Clock_Source
uint32_t RCC_ClkInitTypeDef::AHBCLKDivider
The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
This parameter can be a value of RCC_AHB_Clock_Source
uint32_t RCC_ClkInitTypeDef::APB1CLKDivider
The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of RCC_APB1_APB2_Clock_Source
uint32_t RCC_ClkInitTypeDef::APB2CLKDivider
The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of RCC_APB1_APB2_Clock_Source
36.2 RCC Firmware driver API description
36.2.1 RCC specific features
After reset the device is running from multispeed internal oscillator clock (MSI 2.097MHz)
with Flash 0 wait state and Flash prefetch buffer is disabled, and all peripherals are off
except internal SRAM, Flash and JTAG.
There is no prescaler on High speed (AHB) and Low speed (APB) buses; all
peripherals mapped on these buses are running at MSI speed.
The clock for all peripherals is switched off, except the SRAM and FLASH.
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All GPIOs are in input floating state, except the JTAG pins which are assigned to be
used for debug purpose.
Once the device started from reset, the user application has to:
Configure the clock source to be used to drive the System clock (if the application
needs higher frequency/performance)
Configure the System clock frequency and Flash settings
Configure the AHB and APB buses prescalers
Enable the clock for the peripheral(s) to be used
Configure the clock source(s) for peripherals whose clocks are not derived from the
System clock (I2S, RTC, ADC, USB OTG FS/SDIO/RNG) (*) SDIO only for
STM32L0xxxD devices
36.2.2 RCC Limitations
A delay between an RCC peripheral clock enable and the effective peripheral enabling
should be taken into account in order to manage the peripheral read/write from/to registers.
This delay depends on the peripheral mapping.
AHB & APB peripherals, 1 dummy read is necessary
Workarounds:
1. For AHB & APB peripherals, a dummy read to the peripheral register has been
inserted in each __HAL_RCC_PPP_CLK_ENABLE() macro.
36.2.3 Initialization and de-initialization functions
This section provides functions allowing to configure the internal/external oscillators (MSI,
HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System buses clocks (SYSCLK, AHB,
APB1 and APB2).
Internal/external clock and PLL configuration
1. MSI (Multispeed internal), Seven frequency ranges are available: 65.536 kHz, 131.072
kHz, 262.144 kHz, 524.288 kHz, 1.048 MHz, 2.097 MHz (default value) and 4.194
MHz.
2. HSI (high-speed internal), 16 MHz factory-trimmed RC used directly or through the
PLL as System clock source.
3. LSI (low-speed internal), ~37 KHz low consumption RC used as IWDG and/or RTC
clock source.
4. HSE (high-speed external), 1 to 24 MHz crystal oscillator used directly or through the
PLL as System clock source. Can be used also as RTC clock source.
5. LSE (low-speed external), 32 KHz oscillator used as RTC clock source.
6. PLL (clocked by HSI or HSE), featuring different output clocks:
The first output is used to generate the high speed system clock (up to 32 MHz)
The second output is used to generate the clock for the USB OTG FS (48 MHz)
7. CSS (Clock security system), once enable using the macro
__HAL_RCC_CSS_ENABLE() and if a HSE clock failure occurs(HSE used directly or
through PLL as System clock source), the System clocks automatically switched to
MSI and an interrupt is generated if enabled. The interrupt is linked to the Cortex-M0+
NMI (Non-Maskable Interrupt) exception vector.
8. MCO1/MCO2/MCO3 (microcontroller clock output), used to output SYSCLK, HSI, LSI,
MSI, LSE, HSE, HSI48 or PLL clock (through a configurable prescaler) on
PA8/PA9/PB13 pins.
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System, AHB and APB buses clocks configuration
1. Several clock sources can be used to drive the System clock (SYSCLK): MSI, HSI,
HSE and PLL. The AHB clock (HCLK) is derived from System clock through
configurable prescaler and used to clock the CPU, memory and peripherals mapped
on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived
from AHB clock through configurable prescalers and used to clock the peripherals
mapped on these buses. You can use "@ref HAL_RCC_GetSysClockFreq()" function
to retrieve the frequencies of these clocks. All the peripheral clocks are derived from
the System clock (SYSCLK) except: RTC: RTC clock can be derived either from the
LSI, LSE or HSE clock divided by 2 to 16. You have to use @ref
__HAL_RCC_RTC_CONFIG() and @ref __HAL_RCC_RTC_ENABLE() macros to
configure this clock. LCD: LCD clock can be derived either from the LSI, LSE or HSE
clock divided by 2 to 16. You have to use @ref __HAL_RCC_LCD_CONFIG() macros
to configure this clock. USB FS and RNG: USB FS require a frequency equal to 48
MHz to work correctly. This clock is derived of the main PLL through PLL Multiplier or
HSI48 RC oscillator. IWDG clock which is always the LSI clock.
2. The maximum frequency of the SYSCLK and HCLK is 32 MHz, PCLK2 32 MHz and
PCLK1 32 MHz. Depending on the device voltage range, the maximum frequency
should be adapted accordingly.
This section contains the following APIs:
HAL_RCC_DeInit()
HAL_RCC_OscConfig()
HAL_RCC_ClockConfig()
36.2.4 Peripheral Control functions
This subsection provides a set of functions allowing to control the RCC Clocks
frequencies.
This section contains the following APIs:
HAL_RCC_MCOConfig()
HAL_RCC_EnableCSS()
HAL_RCC_GetSysClockFreq()
HAL_RCC_GetHCLKFreq()
HAL_RCC_GetPCLK1Freq()
HAL_RCC_GetPCLK2Freq()
HAL_RCC_GetOscConfig()
HAL_RCC_GetClockConfig()
HAL_RCC_NMI_IRQHandler()
HAL_RCC_CSSCallback()
36.2.5 Detailed description of functions
HAL_RCC_DeInit
Function name
void HAL_RCC_DeInit (void )
Function description
Resets the RCC clock configuration to the default reset state.
Return values
None
Notes
The default reset state of the clock configuration is given
below: MSI ON and used as system clock sourceHSI, HSE
and PLL OFFAHB, APB1 and APB2 prescaler set to 1.CSS
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and MCO1/MCO2/MCO3 OFFAll interrupts disabled
This function does not modify the configuration of the
Peripheral clocksLSI, LSE and RTC clocksHSI48 clock
HAL_RCC_OscConfig
Function name
HAL_StatusTypeDef HAL_RCC_OscConfig
(RCC_OscInitTypeDef * RCC_OscInitStruct)
Function description
Initializes the RCC Oscillators according to the specified
parameters in the RCC_OscInitTypeDef.
Parameters
RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef
structure that contains the configuration information for the
RCC Oscillators.
Return values
HAL: status
Notes
The PLL is not disabled when used as system clock.
Transitions LSE Bypass to LSE On and LSE On to LSE
Bypass are not supported by this macro. User should request
a transition to LSE Off first and then LSE On or LSE Bypass.
Transition HSE Bypass to HSE On and HSE On to HSE
Bypass are not supported by this macro. User should request
a transition to HSE Off first and then HSE On or HSE Bypass.
HAL_RCC_ClockConfig
Function name
HAL_StatusTypeDef HAL_RCC_ClockConfig
(RCC_ClkInitTypeDef * RCC_ClkInitStruct, uint32_t FLatency)
Function description
Initializes the CPU, AHB and APB buses clocks according to the
specified parameters in the RCC_ClkInitStruct.
Parameters
RCC_ClkInitStruct: pointer to an RCC_OscInitTypeDef
structure that contains the configuration information for the
RCC peripheral.
FLatency: FLASH Latency The value of this parameter
depend on device used within the same series
Return values
HAL: status
Notes
The SystemCoreClock CMSIS variable is used to store
System Clock Frequency and updated by
HAL_RCC_GetHCLKFreq() function called within this function
The MSI is used (enabled by hardware) as system clock
source after start-up from Reset, wake-up from STOP and
STANDBY mode, or in case of failure of the HSE used
directly or indirectly as system clock (if the Clock Security
System CSS is enabled).
A switch from one clock source to another occurs only if the
target clock source is ready (clock stable after start-up delay
or PLL locked). If a clock source which is not yet ready is
selected, the switch will occur when the clock source will be
ready. You can use HAL_RCC_GetClockConfig() function to
know which clock is currently used as system clock source.
Depending on the device voltage range, the software has to
set correctly HPRE[3:0] bits to ensure that HCLK not exceed
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the maximum allowed frequency (for more details refer to
section above "Initialization/de-initialization functions")
HAL_RCC_MCOConfig
Function name
void HAL_RCC_MCOConfig (uint32_t RCC_MCOx, uint32_t
RCC_MCOSource, uint32_t RCC_MCODiv)
Function description
Selects the clock source to output on MCO pin.
Parameters
RCC_MCOx: specifies the output direction for the clock
source. This parameter can be one of the following values:
RCC_MCO1 Clock source to output on MCO1 pin(PA8).
RCC_MCO2 Clock source to output on MCO2 pin(PA9).
RCC_MCO3 Clock source to output on MCO3 pin(PB13)
RCC_MCOSource: specifies the clock source to output. This
parameter can be one of the following values:
RCC_MCO1SOURCE_NOCLOCK No clock selected as
MCO clock
RCC_MCO1SOURCE_SYSCLK System clock selected
as MCO clock
RCC_MCO1SOURCE_HSI HSI selected as MCO clock
RCC_MCO1SOURCE_HSE HSE selected as MCO
clock
RCC_MCO1SOURCE_MSI MSI oscillator clock selected
as MCO clock
RCC_MCO1SOURCE_PLLCLK PLL clock selected as
MCO clock
RCC_MCO1SOURCE_LSI LSI clock selected as MCO
clock
RCC_MCO1SOURCE_LSE LSE clock selected as MCO
clock
RCC_MCO1SOURCE_HSI48 HSI48 clock selected as
MCO clock
RCC_MCODiv: specifies the MCO DIV. This parameter can
be one of the following values:
RCC_MCODIV_1 no division applied to MCO clock
RCC_MCODIV_2 division by 2 applied to MCO clock
RCC_MCODIV_4 division by 4 applied to MCO clock
RCC_MCODIV_8 division by 8 applied to MCO clock
RCC_MCODIV_16 division by 16 applied to MCO clock
Return values
None
Notes
MCO pin should be configured in alternate function mode.
HAL_RCC_EnableCSS
Function name
void HAL_RCC_EnableCSS (void )
Function description
Enables the Clock Security System.
Return values
None
Notes
If a failure is detected on the HSE oscillator clock, this
oscillator is automatically disabled and an interrupt is
generated to inform the software about the failure (Clock
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Security System Interrupt, CSSI), allowing the MCU to
perform rescue operations. The CSSI is linked to the Cortex-
M0+ NMI (Non-Maskable Interrupt) exception vector.
HAL_RCC_NMI_IRQHandler
Function name
void HAL_RCC_NMI_IRQHandler (void )
Function description
This function handles the RCC CSS interrupt request.
Return values
None
Notes
This API should be called under the NMI_Handler().
HAL_RCC_CSSCallback
Function name
void HAL_RCC_CSSCallback (void )
Function description
RCC Clock Security System interrupt callback.
Return values
None
HAL_RCC_GetSysClockFreq
Function name
uint32_t HAL_RCC_GetSysClockFreq (void )
Function description
Returns the SYSCLK frequency.
Return values
SYSCLK: frequency
Notes
The system frequency computed by this function is not the
real frequency in the chip. It is calculated based on the
predefined constant and the selected clock source:
If SYSCLK source is MSI, function returns a value based on
MSI Value as defined by the MSI range.
If SYSCLK source is HSI, function returns values based on
HSI_VALUE(*)
If SYSCLK source is HSE, function returns a value based on
HSE_VALUE(**)
If SYSCLK source is PLL, function returns a value based on
HSE_VALUE(**) or HSI_VALUE(*) multiplied/divided by the
PLL factors.
(*) HSI_VALUE is a constant defined in stm32l0xx_hal_conf.h
file (default value 16 MHz) but the real value may vary
depending on the variations in voltage and temperature.
(**) HSE_VALUE is a constant defined in
stm32l0xx_hal_conf.h file (default value 8 MHz), user has to
ensure that HSE_VALUE is same as the real frequency of the
crystal used. Otherwise, this function may have wrong result.
The result of this function could be not correct when using
fractional value for HSE crystal.
This function can be used by the user application to compute
the baud-rate for the communication peripherals or configure
other parameters.
Each time SYSCLK changes, this function must be called to
update the right SYSCLK value. Otherwise, any configuration
based on this function will be incorrect.
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HAL_RCC_GetHCLKFreq
Function name
uint32_t HAL_RCC_GetHCLKFreq (void )
Function description
Returns the HCLK frequency.
Return values
HCLK: frequency
Notes
Each time HCLK changes, this function must be called to
update the right HCLK value. Otherwise, any configuration
based on this function will be incorrect.
The SystemCoreClock CMSIS variable is used to store
System Clock Frequency and updated within this function
HAL_RCC_GetPCLK1Freq
Function name
uint32_t HAL_RCC_GetPCLK1Freq (void )
Function description
Returns the PCLK1 frequency.
Return values
PCLK1: frequency
Notes
Each time PCLK1 changes, this function must be called to
update the right PCLK1 value. Otherwise, any configuration
based on this function will be incorrect.
HAL_RCC_GetPCLK2Freq
Function name
uint32_t HAL_RCC_GetPCLK2Freq (void )
Function description
Returns the PCLK2 frequency.
Return values
PCLK2: frequency
Notes
Each time PCLK2 changes, this function must be called to
update the right PCLK2 value. Otherwise, any configuration
based on this function will be incorrect.
HAL_RCC_GetOscConfig
Function name
void HAL_RCC_GetOscConfig (RCC_OscInitTypeDef *
RCC_OscInitStruct)
Function description
Configures the RCC_OscInitStruct according to the internal RCC
configuration registers.
Parameters
RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef
structure that will be configured.
Return values
None
HAL_RCC_GetClockConfig
Function name
void HAL_RCC_GetClockConfig (RCC_ClkInitTypeDef *
RCC_ClkInitStruct, uint32_t * pFLatency)
Function description
Get the RCC_ClkInitStruct according to the internal RCC
configuration registers.
Parameters
RCC_ClkInitStruct: pointer to an RCC_ClkInitTypeDef
structure that contains the current clock configuration.
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pFLatency: Pointer on the Flash Latency.
Return values
None
36.3 RCC Firmware driver defines
36.3.1 RCC
AHB Peripheral Clock Sleep Enable Disable
__HAL_RCC_CRC_CLK_SLEEP_ENABLE
__HAL_RCC_MIF_CLK_SLEEP_ENABLE
__HAL_RCC_SRAM_CLK_SLEEP_ENABLE
__HAL_RCC_DMA1_CLK_SLEEP_ENABLE
__HAL_RCC_CRC_CLK_SLEEP_DISABLE
__HAL_RCC_MIF_CLK_SLEEP_DISABLE
__HAL_RCC_SRAM_CLK_SLEEP_DISABLE
__HAL_RCC_DMA1_CLK_SLEEP_DISABLE
AHB Peripheral Clock Sleep Enabled or Disabled Status
__HAL_RCC_CRC_IS_CLK_SLEEP_ENABLED
__HAL_RCC_MIF_IS_CLK_SLEEP_ENABLED
__HAL_RCC_SRAM_IS_CLK_SLEEP_ENABLED
__HAL_RCC_DMA1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_CRC_IS_CLK_SLEEP_DISABLED
__HAL_RCC_MIF_IS_CLK_SLEEP_DISABLED
__HAL_RCC_SRAM_IS_CLK_SLEEP_DISABLED
__HAL_RCC_DMA1_IS_CLK_SLEEP_DISABLED
AHB Clock Source
RCC_SYSCLK_DIV1
SYSCLK not divided
RCC_SYSCLK_DIV2
SYSCLK divided by 2
RCC_SYSCLK_DIV4
SYSCLK divided by 4
RCC_SYSCLK_DIV8
SYSCLK divided by 8
RCC_SYSCLK_DIV16
SYSCLK divided by 16
RCC_SYSCLK_DIV64
SYSCLK divided by 64
RCC_SYSCLK_DIV128
SYSCLK divided by 128
RCC_SYSCLK_DIV256
SYSCLK divided by 256
RCC_SYSCLK_DIV512
SYSCLK divided by 512
AHB Peripheral Force Release Reset
__HAL_RCC_AHB_FORCE_RESET
__HAL_RCC_DMA1_FORCE_RESET
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__HAL_RCC_MIF_FORCE_RESET
__HAL_RCC_CRC_FORCE_RESET
__HAL_RCC_AHB_RELEASE_RESET
__HAL_RCC_CRC_RELEASE_RESET
__HAL_RCC_DMA1_RELEASE_RESET
__HAL_RCC_MIF_RELEASE_RESET
AHB Peripheral Clock Enable Disable
__HAL_RCC_DMA1_CLK_ENABLE
__HAL_RCC_MIF_CLK_ENABLE
__HAL_RCC_CRC_CLK_ENABLE
__HAL_RCC_DMA1_CLK_DISABLE
__HAL_RCC_MIF_CLK_DISABLE
__HAL_RCC_CRC_CLK_DISABLE
AHB Peripheral Clock Enabled or Disabled Status
__HAL_RCC_DMA1_IS_CLK_ENABLED
__HAL_RCC_MIF_IS_CLK_ENABLED
__HAL_RCC_CRC_IS_CLK_ENABLED
__HAL_RCC_DMA1_IS_CLK_DISABLED
__HAL_RCC_MIF_IS_CLK_DISABLED
__HAL_RCC_CRC_IS_CLK_DISABLED
APB1 APB2 Clock Source
RCC_HCLK_DIV1
HCLK not divided
RCC_HCLK_DIV2
HCLK divided by 2
RCC_HCLK_DIV4
HCLK divided by 4
RCC_HCLK_DIV8
HCLK divided by 8
RCC_HCLK_DIV16
HCLK divided by 16
APB1 Peripheral Clock Enable Disable
__HAL_RCC_WWDG_CLK_ENABLE
__HAL_RCC_PWR_CLK_ENABLE
__HAL_RCC_WWDG_CLK_DISABLE
__HAL_RCC_PWR_CLK_DISABLE
APB1 Peripheral Clock Enabled or Disabled Status
__HAL_RCC_WWDG_IS_CLK_ENABLED
__HAL_RCC_PWR_IS_CLK_ENABLED
__HAL_RCC_WWDG_IS_CLK_DISABLED
__HAL_RCC_PWR_IS_CLK_DISABLED
APB1 Peripheral Clock Sleep Enable Disable
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__HAL_RCC_WWDG_CLK_SLEEP_ENABLE
__HAL_RCC_PWR_CLK_SLEEP_ENABLE
__HAL_RCC_WWDG_CLK_SLEEP_DISABLE
__HAL_RCC_PWR_CLK_SLEEP_DISABLE
APB1 Peripheral Clock Sleep Enabled or Disabled Status
__HAL_RCC_WWDG_IS_CLK_SLEEP_ENABLED
__HAL_RCC_PWR_IS_CLK_SLEEP_ENABLED
__HAL_RCC_WWDG_IS_CLK_SLEEP_DISABLED
__HAL_RCC_PWR_IS_CLK_SLEEP_DISABLED
APB1 Peripheral Force Release Reset
__HAL_RCC_APB1_FORCE_RESET
__HAL_RCC_WWDG_FORCE_RESET
__HAL_RCC_PWR_FORCE_RESET
__HAL_RCC_APB1_RELEASE_RESET
__HAL_RCC_WWDG_RELEASE_RESET
__HAL_RCC_PWR_RELEASE_RESET
APB2 Peripheral Clock Enable Disable
__HAL_RCC_SYSCFG_CLK_ENABLE
__HAL_RCC_DBGMCU_CLK_ENABLE
__HAL_RCC_SYSCFG_CLK_DISABLE
__HAL_RCC_DBGMCU_CLK_DISABLE
APB2 Peripheral Clock Enabled or Disabled Status
__HAL_RCC_SYSCFG_IS_CLK_ENABLED
__HAL_RCC_DBGMCU_IS_CLK_ENABLED
__HAL_RCC_SYSCFG_IS_CLK_DISABLED
__HAL_RCC_DBGMCU_IS_CLK_DISABLED
APB2 Peripheral Clock Sleep Enable Disable
__HAL_RCC_SYSCFG_CLK_SLEEP_ENABLE
__HAL_RCC_DBGMCU_CLK_SLEEP_ENABLE
__HAL_RCC_SYSCFG_CLK_SLEEP_DISABLE
__HAL_RCC_DBGMCU_CLK_SLEEP_DISABLE
APB2 Peripheral Clock Sleep Enabled or Disabled Status
__HAL_RCC_SYSCFG_IS_CLK_SLEEP_ENABLED
__HAL_RCC_DBGMCU_IS_CLK_SLEEP_ENABLED
__HAL_RCC_SYSCFG_IS_CLK_SLEEP_DISABLED
__HAL_RCC_DBGMCU_IS_CLK_SLEEP_DISABLED
APB2 Peripheral Force Release Reset
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__HAL_RCC_APB2_FORCE_RESET
__HAL_RCC_DBGMCU_FORCE_RESET
__HAL_RCC_SYSCFG_FORCE_RESET
__HAL_RCC_APB2_RELEASE_RESET
__HAL_RCC_DBGMCU_RELEASE_RESET
__HAL_RCC_SYSCFG_RELEASE_RESET
BitAddress AliasRegion
RCC_OFFSET
RCC_CR_OFFSET
RCC_CFGR_OFFSET
RCC_CSR_OFFSET
RCC_CR_BYTE2_ADDRESS
CIER_BYTE0_ADDRESS
Flags
RCC_FLAG_HSIRDY
Internal High Speed clock ready flag
RCC_FLAG_HSIDIV
HSI16 divider flag
RCC_FLAG_MSIRDY
MSI clock ready flag
RCC_FLAG_HSERDY
External High Speed clock ready flag
RCC_FLAG_PLLRDY
PLL clock ready flag
RCC_FLAG_LSIRDY
Internal Low Speed oscillator Ready
RCC_FLAG_LSERDY
External Low Speed oscillator Ready
RCC_FLAG_LSECSS
CSS on LSE failure Detection
RCC_FLAG_OBLRST
Options bytes loading reset flag
RCC_FLAG_PINRST
PIN reset flag
RCC_FLAG_PORRST
POR/PDR reset flag
RCC_FLAG_SFTRST
Software Reset flag
RCC_FLAG_IWDGRST
Independent Watchdog reset flag
RCC_FLAG_WWDGRST
Window watchdog reset flag
RCC_FLAG_LPWRRST
Low-Power reset flag
RCC_FLAG_FWRST
RCC flag FW reset
RCC_FLAG_HSI48RDY
HSI48 clock ready flag
Flags Interrupts Management
__HAL_RCC_ENABLE_IT
Description:
Enable RCC interrupt.
Parameters:
__INTERRUPT__: specifies the RCC
interrupt sources to be enabled. This
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parameter can be any combination of the
following values:
RCC_IT_LSIRDY LSI ready interrupt
RCC_IT_LSERDY LSE ready interrupt
RCC_IT_HSIRDY HSI ready interrupt
RCC_IT_HSERDY HSE ready interrupt
RCC_IT_PLLRDY main PLL ready
interrupt
RCC_IT_MSIRDY MSI ready interrupt
RCC_IT_LSECSS LSE CSS interrupt
RCC_IT_HSI48RDY HSI48 ready
interrupt (not available on all devices)
Notes:
The CSS interrupt doesn't have an enable
bit; once the CSS is enabled and if the HSE
clock fails, the CSS interrupt occurs and an
NMI is automatically generated. The NMI will
be executed indefinitely, and since NMI has
higher priority than any other IRQ (and main
program) the application will be stacked in
the NMI ISR unless the CSS interrupt
pending bit is cleared.
__HAL_RCC_DISABLE_IT
Description:
Disable RCC interrupt.
Parameters:
__INTERRUPT__: specifies the RCC
interrupt sources to be disabled. This
parameter can be any combination of the
following values:
RCC_IT_LSIRDY LSI ready interrupt
RCC_IT_LSERDY LSE ready interrupt
RCC_IT_HSIRDY HSI ready interrupt
RCC_IT_HSERDY HSE ready interrupt
RCC_IT_PLLRDY main PLL ready
interrupt
RCC_IT_MSIRDY MSI ready interrupt
RCC_IT_LSECSS LSE CSS interrupt
RCC_IT_HSI48RDY HSI48 ready
interrupt (not available on all devices)
Notes:
The CSS interrupt doesn't have an enable
bit; once the CSS is enabled and if the HSE
clock fails, the CSS interrupt occurs and an
NMI is automatically generated. The NMI will
be executed indefinitely, and since NMI has
higher priority than any other IRQ (and main
program) the application will be stacked in
the NMI ISR unless the CSS interrupt
pending bit is cleared.
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__HAL_RCC_CLEAR_IT
Description:
Clear the RCC's interrupt pending bits.
Parameters:
__INTERRUPT__: specifies the interrupt
pending bit to clear. This parameter can be
any combination of the following values:
RCC_IT_LSIRDY LSI ready interrupt.
RCC_IT_LSERDY LSE ready interrupt.
RCC_IT_HSIRDY HSI ready interrupt.
RCC_IT_HSERDY HSE ready
interrupt.
RCC_IT_PLLRDY Main PLL ready
interrupt.
RCC_IT_MSIRDY MSI ready interrupt
RCC_IT_LSECSS LSE CSS interrupt
RCC_IT_HSI48RDY HSI48 ready
interrupt (not available on all devices)
RCC_IT_CSS Clock Security System
interrupt
__HAL_RCC_GET_IT
Description:
Check the RCC's interrupt has occurred or
not.
Parameters:
__INTERRUPT__: specifies the RCC
interrupt source to check. This parameter
can be one of the following values:
RCC_IT_LSIRDY LSI ready interrupt
RCC_IT_LSERDY LSE ready interrupt
RCC_IT_HSIRDY HSI ready interrupt
RCC_IT_HSERDY HSE ready interrupt
RCC_IT_PLLRDY PLL ready interrupt
RCC_IT_MSIRDY MSI ready interrupt
RCC_IT_LSECSS LSE CSS interrupt
RCC_IT_CSS Clock Security System
interrupt
Return value:
The: new state of __INTERRUPT__ (TRUE
or FALSE).
__HAL_RCC_CLEAR_RESET_FLAGS
The reset flags are RCC_FLAG_PINRST,
RCC_FLAG_PORRST, RCC_FLAG_SFTRST,
RCC_FLAG_OBLRST, RCC_FLAG_IWDGRST,
RCC_FLAG_WWDGRST,
RCC_FLAG_LPWRRST
__HAL_RCC_GET_FLAG
Description:
Check RCC flag is set or not.
Parameters:
__FLAG__: specifies the flag to check. This
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parameter can be one of the following
values:
RCC_FLAG_HSIRDY HSI oscillator
clock ready
RCC_FLAG_HSI48RDY HSI48
oscillator clock ready (not available on
all devices)
RCC_FLAG_HSIDIV HSI16 divider flag
RCC_FLAG_MSIRDY MSI oscillator
clock ready
RCC_FLAG_HSERDY HSE oscillator
clock ready
RCC_FLAG_PLLRDY PLL clock ready
RCC_FLAG_LSECSS LSE oscillator
clock CSS detected
RCC_FLAG_LSERDY LSE oscillator
clock ready
RCC_FLAG_FWRST Firewall reset
RCC_FLAG_LSIRDY LSI oscillator
clock ready
RCC_FLAG_OBLRST Option Byte
Loader (OBL) reset
RCC_FLAG_PINRST Pin reset
RCC_FLAG_PORRST POR/PDR reset
RCC_FLAG_SFTRST Software reset
RCC_FLAG_IWDGRST Independent
Watchdog reset
RCC_FLAG_WWDGRST Window
Watchdog reset
RCC_FLAG_LPWRRST Low Power
reset
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
Get Clock source
__HAL_RCC_SYSCLK_CONFI
G
Description:
Macro to configure the system clock source.
Parameters:
__SYSCLKSOURCE__: specifies the system clock
source. This parameter can be one of the following
values:
RCC_SYSCLKSOURCE_MSI MSI oscillator is
used as system clock source.
RCC_SYSCLKSOURCE_HSI HSI oscillator is
used as system clock source.
RCC_SYSCLKSOURCE_HSE HSE oscillator
is used as system clock source.
RCC_SYSCLKSOURCE_PLLCLK PLL output
is used as system clock source.
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__HAL_RCC_GET_SYSCLK_
SOURCE
Description:
Macro to get the clock source used as system
clock.
Return value:
The: clock source used as system clock. The
returned value can be one of the following:
RCC_SYSCLKSOURCE_STATUS_MSI MSI
used as system clock
RCC_SYSCLKSOURCE_STATUS_HSI HSI
used as system clock
RCC_SYSCLKSOURCE_STATUS_HSE HSE
used as system clock
RCC_SYSCLKSOURCE_STATUS_PLLCLK
PLL used as system clock
RTC HSE Prescaler
RCC_RTC_HSE_DIV_2
HSE is divided by 2 for RTC clock
RCC_RTC_HSE_DIV_4
HSE is divided by 4 for RTC clock
RCC_RTC_HSE_DIV_8
HSE is divided by 8 for RTC clock
RCC_RTC_HSE_DIV_16
HSE is divided by 16 for RTC clock
HSE Config
RCC_HSE_OFF
HSE clock deactivation
RCC_HSE_ON
HSE clock activation
RCC_HSE_BYPASS
External clock source for HSE clock
HSE Configuration
__HAL_RCC_HSE_CONFIG
Description:
Macro to configure the External High Speed oscillator
(HSE).
Parameters:
__STATE__: specifies the new state of the HSE. This
parameter can be one of the following values:
RCC_HSE_OFF turn OFF the HSE oscillator,
HSERDY flag goes low after 6 HSE oscillator
clock cycles.
RCC_HSE_ON turn ON the HSE oscillator
RCC_HSE_BYPASS HSE oscillator bypassed
with external clock
Notes:
Transition HSE Bypass to HSE On and HSE On to
HSE Bypass are not supported by this macro. User
should request a transition to HSE Off first and then
HSE On or HSE Bypass. After enabling the HSE
(RCC_HSE_ON or RCC_HSE_Bypass), the
application software should wait on HSERDY flag to
be set indicating that HSE clock is stable and can be
used to clock the PLL and/or system clock. HSE state
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can not be changed if it is used directly or through the
PLL as system clock. In this case, you have to select
another source of the system clock then change the
HSE state (ex. disable it). The HSE is stopped by
hardware when entering STOP and STANDBY modes.
This function reset the CSSON bit, so if the clock
security system(CSS) was previously enabled you
have to enable it again after calling this function.
HSI48 Config
RCC_HSI48_OFF
RCC_HSI48_ON
HSI Config
RCC_HSI_OFF
HSI clock deactivation
RCC_HSI_ON
HSI clock activation
RCC_HSI_DIV4
HSI_DIV4 clock activation
RCC_HSI_OUTEN
HSI_OUTEN clock activation
RCC_HSICALIBRATION_DEFAULT
HSI Configuration
__HAL_RCC_HSI_CONFIG
Description:
Macro to enable or disable the Internal
High Speed oscillator (HSI).
Parameters:
__STATE__: specifies the new state of
the HSI. This parameter can be one of
the following values:
RCC_HSI_OFF turn OFF the HSI
oscillator
RCC_HSI_ON turn ON the HSI
oscillator
RCC_HSI_DIV4 turn ON the HSI
oscillator and divide it by 4
Notes:
After enabling the HSI, the application
software should wait on HSIRDY flag
to be set indicating that HSI clock is
stable and can be used to clock the
PLL and/or system clock. HSI can not
be stopped if it is used directly or
through the PLL as system clock. In
this case, you have to select another
source of the system clock then stop
the HSI. The HSI is stopped by
hardware when entering STOP and
STANDBY modes.
When the HSI is stopped, HSIRDY flag
goes low after 6 HSI oscillator clock
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cycles.
__HAL_RCC_HSI_ENABLE
Notes:
The HSI is stopped by hardware when
entering STOP and STANDBY modes.
It is used (enabled by hardware) as
system clock source after startup from
Reset, wakeup from STOP and
STANDBY mode, or in case of failure
of the HSE used directly or indirectly as
system clock (if the Clock Security
System CSS is enabled). HSI can not
be stopped if it is used as system clock
source. In this case, you have to select
another source of the system clock
then stop the HSI. After enabling the
HSI, the application software should
wait on HSIRDY flag to be set
indicating that HSI clock is stable and
can be used as system clock source.
When the HSI is stopped, HSIRDY flag
goes low after 6 HSI oscillator clock
cycles.
__HAL_RCC_HSI_DISABLE
__HAL_RCC_HSI_CALIBRATIONVALUE_
ADJUST
Description:
Macro to adjust the Internal High
Speed oscillator (HSI) calibration
value.
Parameters:
_HSICALIBRATIONVALUE_: specifies
the calibration trimming value. (default
is
RCC_HSICALIBRATION_DEFAULT).
This parameter must be a number
between 0 and 0x1F.
Notes:
The calibration is used to compensate
for the variations in voltage and
temperature that influence the
frequency of the internal HSI RC.
Interrupts
RCC_IT_LSIRDY
LSI Ready Interrupt flag
RCC_IT_LSERDY
LSE Ready Interrupt flag
RCC_IT_HSIRDY
HSI Ready Interrupt flag
RCC_IT_HSERDY
HSE Ready Interrupt flag
RCC_IT_PLLRDY
PLL Ready Interrupt flag
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RCC_IT_MSIRDY
MSI Ready Interrupt flag
RCC_IT_LSECSS
LSE Clock Security System Interrupt flag
RCC_IT_CSS
Clock Security System Interrupt flag
RCC_IT_HSI48RDY
HSI48 Ready Interrupt flag
IOPORT Peripheral Clock Enable Disable
__HAL_RCC_GPIOA_CLK_ENABLE
__HAL_RCC_GPIOB_CLK_ENABLE
__HAL_RCC_GPIOC_CLK_ENABLE
__HAL_RCC_GPIOH_CLK_ENABLE
__HAL_RCC_GPIOA_CLK_DISABLE
__HAL_RCC_GPIOB_CLK_DISABLE
__HAL_RCC_GPIOC_CLK_DISABLE
__HAL_RCC_GPIOH_CLK_DISABLE
IOPORT Peripheral Clock Sleep Enable Disable
__HAL_RCC_GPIOA_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOB_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOC_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOH_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOA_CLK_SLEEP_DISABLE
__HAL_RCC_GPIOB_CLK_SLEEP_DISABLE
__HAL_RCC_GPIOC_CLK_SLEEP_DISABLE
__HAL_RCC_GPIOH_CLK_SLEEP_DISABLE
IOPORT Peripheral Clock Sleep Enabled or Disabled Status
__HAL_RCC_GPIOA_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOB_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOC_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOH_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOA_IS_CLK_SLEEP_DISABLED
__HAL_RCC_GPIOB_IS_CLK_SLEEP_DISABLED
__HAL_RCC_GPIOC_IS_CLK_SLEEP_DISABLED
__HAL_RCC_GPIOH_IS_CLK_SLEEP_DISABLED
IOPORT Peripheral Force Release Reset
__HAL_RCC_IOP_FORCE_RESET
__HAL_RCC_GPIOA_FORCE_RESET
__HAL_RCC_GPIOB_FORCE_RESET
__HAL_RCC_GPIOC_FORCE_RESET
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__HAL_RCC_GPIOH_FORCE_RESET
__HAL_RCC_IOP_RELEASE_RESET
__HAL_RCC_GPIOA_RELEASE_RESET
__HAL_RCC_GPIOB_RELEASE_RESET
__HAL_RCC_GPIOC_RELEASE_RESET
__HAL_RCC_GPIOH_RELEASE_RESET
IOPORT Peripheral Clock Enabled or Disabled Status
__HAL_RCC_GPIOA_IS_CLK_ENABLED
__HAL_RCC_GPIOB_IS_CLK_ENABLED
__HAL_RCC_GPIOC_IS_CLK_ENABLED
__HAL_RCC_GPIOH_IS_CLK_ENABLED
__HAL_RCC_GPIOA_IS_CLK_DISABLED
__HAL_RCC_GPIOB_IS_CLK_DISABLED
__HAL_RCC_GPIOC_IS_CLK_DISABLED
__HAL_RCC_GPIOH_IS_CLK_DISABLED
LSE Config
RCC_LSE_OFF
LSE clock deactivation
RCC_LSE_ON
LSE clock activation
RCC_LSE_BYPASS
External clock source for LSE clock
LSE Configuration
__HAL_RCC_LSE_CONFIG
Description:
Macro to configure the External Low Speed oscillator
(LSE).
Parameters:
__STATE__: specifies the new state of the LSE. This
parameter can be one of the following values:
RCC_LSE_OFF turn OFF the LSE oscillator,
LSERDY flag goes low after 6 LSE oscillator clock
cycles.
RCC_LSE_ON turn ON the LSE oscillator.
RCC_LSE_BYPASS LSE oscillator bypassed with
external clock.
Notes:
Transitions LSE Bypass to LSE On and LSE On to
LSE Bypass are not supported by this macro. As the
LSE is in the Backup domain and write access is
denied to this domain after reset, you have to enable
write access using HAL_PWR_EnableBkUpAccess()
function before to configure the LSE (to be done once
after reset). After enabling the LSE (RCC_LSE_ON or
RCC_LSE_BYPASS), the application software should
wait on LSERDY flag to be set indicating that LSE
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clock is stable and can be used to clock the RTC.
LSI Config
RCC_LSI_OFF
LSI clock deactivation
RCC_LSI_ON
LSI clock activation
LSI Configuration
__HAL_RCC_LSI_ENABLE
Notes:
After enabling the LSI, the application software should
wait on LSIRDY flag to be set indicating that LSI clock
is stable and can be used to clock the IWDG and/or the
RTC.
__HAL_RCC_LSI_DISABLE
Notes:
LSI can not be disabled if the IWDG is running. When
the LSI is stopped, LSIRDY flag goes low after 6 LSI
oscillator clock cycles.
MCO1 Clock Source
RCC_MCO1SOURCE_NOCLOCK
RCC_MCO1SOURCE_SYSCLK
RCC_MCO1SOURCE_MSI
RCC_MCO1SOURCE_HSI
RCC_MCO1SOURCE_LSE
RCC_MCO1SOURCE_LSI
RCC_MCO1SOURCE_HSE
RCC_MCO1SOURCE_PLLCLK
RCC_MCO1SOURCE_HSI48
MCO Clock Prescaler
RCC_MCODIV_1
RCC_MCODIV_2
RCC_MCODIV_4
RCC_MCODIV_8
RCC_MCODIV_16
MCO Index
RCC_MCO1
RCC_MCO2
RCC_MCO3
MSI Clock Range
RCC_MSIRANGE_0
MSI = 65.536 KHz
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RCC_MSIRANGE_1
MSI = 131.072 KHz
RCC_MSIRANGE_2
MSI = 262.144 KHz
RCC_MSIRANGE_3
MSI = 524.288 KHz
RCC_MSIRANGE_4
MSI = 1.048 MHz
RCC_MSIRANGE_5
MSI = 2.097 MHz
RCC_MSIRANGE_6
MSI = 4.194 MHz
MSI Config
RCC_MSI_OFF
RCC_MSI_ON
RCC_MSICALIBRATION_DEFAULT
MSI Configuration
__HAL_RCC_MSI_ENABLE
Notes:
After enabling the MSI, the application
software should wait on MSIRDY flag to
be set indicating that MSI clock is stable
and can be used as system clock
source.
__HAL_RCC_MSI_DISABLE
Notes:
The MSI is stopped by hardware when
entering STOP and STANDBY modes. It
is used (enabled by hardware) as
system clock source after startup from
Reset, wakeup from STOP and
STANDBY mode, or in case of failure of
the HSE used directly or indirectly as
system clock (if the Clock Security
System CSS is enabled). MSI can not
be stopped if it is used as system clock
source. In this case, you have to select
another source of the system clock then
stop the MSI. When the MSI is stopped,
MSIRDY flag goes low after 6 MSI
oscillator clock cycles.
__HAL_RCC_MSI_CALIBRATIONVALUE_
ADJUST
Description:
Macro adjusts Internal Multi Speed
oscillator (MSI) calibration value.
Parameters:
_MSICALIBRATIONVALUE_: specifies
the calibration trimming value. (default is
RCC_MSICALIBRATION_DEFAULT).
This parameter must be a number
between 0 and 0xFF.
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Notes:
The calibration is used to compensate
for the variations in voltage and
temperature that influence the frequency
of the internal MSI RC. Refer to the
Application Note AN3300 for more
details on how to calibrate the MSI.
__HAL_RCC_MSI_RANGE_CONFIG
__HAL_RCC_GET_MSI_RANGE
Description:
Macro to get the Internal Multi Speed
oscillator (MSI) clock range in run mode.
Return value:
MSI: clock range. This parameter must
be one of the following values:
RCC_MSIRANGE_0 MSI clock is
around 65.536 KHz
RCC_MSIRANGE_1 MSI clock is
around 131.072 KHz
RCC_MSIRANGE_2 MSI clock is
around 262.144 KHz
RCC_MSIRANGE_3 MSI clock is
around 524.288 KHz
RCC_MSIRANGE_4 MSI clock is
around 1.048 MHz
RCC_MSIRANGE_5 MSI clock is
around 2.097 MHz (default after
Reset or wake-up from STANDBY)
RCC_MSIRANGE_6 MSI clock is
around 4.194 MHz
Oscillator Type
RCC_OSCILLATORTYPE_NONE
RCC_OSCILLATORTYPE_HSE
RCC_OSCILLATORTYPE_HSI
RCC_OSCILLATORTYPE_LSE
RCC_OSCILLATORTYPE_LSI
RCC_OSCILLATORTYPE_MSI
RCC_OSCILLATORTYPE_HSI48
PLL Clock Source
RCC_PLLSOURCE_HSI
HSI clock selected as PLL entry clock source
RCC_PLLSOURCE_HSE
HSE clock selected as PLL entry clock source
PLL Config
RCC_PLL_NONE
PLL is not configured
RCC_PLL_OFF
PLL deactivation
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RCC_PLL_ON
PLL activation
PLL Configuration
__HAL_RCC_PLL_ENABLE
Notes:
After enabling the main PLL, the application
software should wait on PLLRDY flag to be
set indicating that PLL clock is stable and
can be used as system clock source. The
main PLL is disabled by hardware when
entering STOP and STANDBY modes.
__HAL_RCC_PLL_DISABLE
Notes:
The main PLL can not be disabled if it is
used as system clock source
__HAL_RCC_PLL_CONFIG
Description:
Macro to configure the main PLL clock
source, multiplication and division factors.
Parameters:
__RCC_PLLSOURCE__: specifies the PLL
entry clock source. This parameter can be
one of the following values:
RCC_PLLSOURCE_HSI HSI oscillator
clock selected as PLL clock entry
RCC_PLLSOURCE_HSE HSE
oscillator clock selected as PLL clock
entry
__PLLMUL__: specifies the multiplication
factor for PLL VCO output clock This
parameter can be one of the following
values:
RCC_PLL_MUL3 PLLVCO = PLL
clock entry x 3
RCC_PLL_MUL4 PLLVCO = PLL
clock entry x 4
RCC_PLL_MUL6 PLLVCO = PLL
clock entry x 6
RCC_PLL_MUL8 PLLVCO = PLL
clock entry x 8
RCC_PLL_MUL12 PLLVCO = PLL
clock entry x 12
RCC_PLL_MUL16 PLLVCO = PLL
clock entry x 16
RCC_PLL_MUL24 PLLVCO = PLL
clock entry x 24
RCC_PLL_MUL32 PLLVCO = PLL
clock entry x 32
RCC_PLL_MUL48 PLLVCO = PLL
clock entry x 48
__PLLDIV__: specifies the division factor
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for PLL VCO input clock This parameter
can be one of the following values:
RCC_PLL_DIV2 PLL clock output =
PLLVCO / 2
RCC_PLL_DIV3 PLL clock output =
PLLVCO / 3
RCC_PLL_DIV4 PLL clock output =
PLLVCO / 4
Notes:
This function must be used only when the
main PLL is disabled.
The PLL VCO clock frequency must not
exceed 96 MHz when the product is in
Range 1, 48 MHz when the product is in
Range 2 and 24 MHz when the product is
in Range 3.
__HAL_RCC_GET_PLL_OSCSOURCE
Description:
Get oscillator clock selected as PLL input
clock.
Return value:
The: clock source used for PLL entry. The
returned value can be one of the following:
RCC_PLLSOURCE_HSI HSI oscillator
clock selected as PLL input clock
RCC_PLLSOURCE_HSE HSE
oscillator clock selected as PLL input
clock
PLL Division Factor
RCC_PLL_DIV2
RCC_PLL_DIV3
RCC_PLL_DIV4
PLL Multiplication Factor
RCC_PLL_MUL3
RCC_PLL_MUL4
RCC_PLL_MUL6
RCC_PLL_MUL8
RCC_PLL_MUL12
RCC_PLL_MUL16
RCC_PLL_MUL24
RCC_PLL_MUL32
RCC_PLL_MUL48
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RCC RTC Clock Configuration
__HAL_RCC_RTC_CLKPRESCALER
Description:
Macro to configure the RTC clock
(RTCCLK).
Parameters:
__RTC_CLKSOURCE__: specifies the RTC
clock source. This parameter can be one of
the following values:
RCC_RTCCLKSOURCE_NO_CLK No
clock selected as RTC clock
RCC_RTCCLKSOURCE_LSE LSE
selected as RTC clock
RCC_RTCCLKSOURCE_LSI LSI
selected as RTC clock
RCC_RTCCLKSOURCE_HSE_DIV2
HSE divided by 2 selected as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV4
HSE divided by 4 selected as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV8
HSE divided by 8 selected as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV16
HSE divided by 16 selected as RTC
clock
Notes:
As the RTC clock configuration bits are in
the Backup domain and write access is
denied to this domain after reset, you have
to enable write access using the Power
Backup Access macro before to configure
the RTC clock source (to be done once
after reset). Once the RTC clock is
configured it cannot be changed unless the
Backup domain is reset using
__HAL_RCC_BACKUPRESET_FORCE()
macro, or by a Power On Reset (POR).
RTC prescaler cannot be modified if HSE is
enabled (HSEON = 1).
If the LSE or LSI is used as RTC clock
source, the RTC continues to work in STOP
and STANDBY modes, and can be used as
wakeup source. However, when the HSE
clock is used as RTC clock source, the RTC
cannot be used in STOP and STANDBY
modes. The maximum input clock frequency
for RTC is 1MHz (when using HSE as RTC
clock source).
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__HAL_RCC_RTC_CONFIG
__HAL_RCC_GET_RTC_SOURCE
Description:
Macro to get the RTC clock source.
Return value:
The: clock source can be one of the
following values:
RCC_RTCCLKSOURCE_NO_CLK No
clock selected as RTC clock
RCC_RTCCLKSOURCE_LSE LSE
selected as RTC clock
RCC_RTCCLKSOURCE_LSI LSI
selected as RTC clock
RCC_RTCCLKSOURCE_HSE_DIVX
HSE divided by X selected as RTC
clock (X can be retrieved thanks to
__HAL_RCC_GET_RTC_HSE_PRES
CALER()
__HAL_RCC_GET_RTC_HSE_
PRESCALER
Description:
Get the RTC and LCD HSE clock divider
(RTCCLK / LCDCLK).
Return value:
Returned: value can be one of the following
values:
RCC_RTC_HSE_DIV_2 HSE divided
by 2 selected as RTC clock
RCC_RTC_HSE_DIV_4 HSE divided
by 4 selected as RTC clock
RCC_RTC_HSE_DIV_8 HSE divided
by 8 selected as RTC clock
RCC_RTC_HSE_DIV_16 HSE divided
by 16 selected as RTC clock
__HAL_RCC_RTC_ENABLE
Notes:
These macros must be used only after the
RTC clock source was selected.
__HAL_RCC_RTC_DISABLE
Notes:
These macros must be used only after the
RTC clock source was selected.
__HAL_RCC_BACKUPRESET_
FORCE
Notes:
This function resets the RTC peripheral
(including the backup registers) and the
RTC clock source selection in RCC_CSR
register. The BKPSRAM is not affected by
this reset.
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__HAL_RCC_BACKUPRESET_RELE
ASE
RTC LCD Clock Source
RCC_RTCCLKSOURCE_NO_CLK
No clock
RCC_RTCCLKSOURCE_LSE
LSE oscillator clock used as RTC clock
RCC_RTCCLKSOURCE_LSI
LSI oscillator clock used as RTC clock
RCC_RTCCLKSOURCE_HSE_DIVX
HSE oscillator clock divided by X used as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV2
HSE oscillator clock divided by 2 used as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV4
HSE oscillator clock divided by 4 used as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV8
HSE oscillator clock divided by 8 used as RTC
clock
RCC_RTCCLKSOURCE_HSE_DIV16
HSE oscillator clock divided by 16 used as RTC
clock
System Clock Source
RCC_SYSCLKSOURCE_MSI
MSI selected as system clock
RCC_SYSCLKSOURCE_HSI
HSI selected as system clock
RCC_SYSCLKSOURCE_HSE
HSE selected as system clock
RCC_SYSCLKSOURCE_PLLCLK
PLL selected as system clock
System Clock Source Status
RCC_SYSCLKSOURCE_STATUS_MSI
MSI used as system clock
RCC_SYSCLKSOURCE_STATUS_HSI
HSI used as system clock
RCC_SYSCLKSOURCE_STATUS_HSE
HSE used as system clock
RCC_SYSCLKSOURCE_STATUS_PLLCLK
PLL used as system clock
System Clock Type
RCC_CLOCKTYPE_SYSCLK
SYSCLK to configure
RCC_CLOCKTYPE_HCLK
HCLK to configure
RCC_CLOCKTYPE_PCLK1
PCLK1 to configure
RCC_CLOCKTYPE_PCLK2
PCLK2 to configure
RCC Timeout
RCC_DBP_TIMEOUT_VALUE
RCC_LSE_TIMEOUT_VALUE
CLOCKSWITCH_TIMEOUT_VALUE
HSE_TIMEOUT_VALUE
MSI_TIMEOUT_VALUE
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HSI_TIMEOUT_VALUE
HSI48_TIMEOUT_VALUE
HSI48_TIMEOUT_VALUE
LSI_TIMEOUT_VALUE
PLL_TIMEOUT_VALUE
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37 HAL RCC Extension Driver
37.1 RCCEx Firmware driver registers structures
37.1.1 RCC_PeriphCLKInitTypeDef
Data Fields
uint32_t PeriphClockSelection
uint32_t RTCClockSelection
uint32_t LCDClockSelection
uint32_t Usart1ClockSelection
uint32_t Usart2ClockSelection
uint32_t Lpuart1ClockSelection
uint32_t I2c1ClockSelection
uint32_t I2c3ClockSelection
uint32_t LptimClockSelection
uint32_t UsbClockSelection
Field Documentation
uint32_t RCC_PeriphCLKInitTypeDef::PeriphClockSelection
The Extended Clock to be configured. This parameter can be a value of
RCCEx_Periph_Clock_Selection
uint32_t RCC_PeriphCLKInitTypeDef::RTCClockSelection
specifies the RTC clock source. This parameter can be a value of
RCC_RTC_LCD_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::LCDClockSelection
specifies the LCD clock source. This parameter can be a value of
RCC_RTC_LCD_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::Usart1ClockSelection
USART1 clock source This parameter can be a value of
RCCEx_USART1_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::Usart2ClockSelection
USART2 clock source This parameter can be a value of
RCCEx_USART2_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::Lpuart1ClockSelection
LPUART1 clock source This parameter can be a value of
RCCEx_LPUART1_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::I2c1ClockSelection
I2C1 clock source This parameter can be a value of RCCEx_I2C1_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::I2c3ClockSelection
I2C3 clock source This parameter can be a value of RCCEx_I2C3_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::LptimClockSelection
LPTIM1 clock source This parameter can be a value of
RCCEx_LPTIM1_Clock_Source
uint32_t RCC_PeriphCLKInitTypeDef::UsbClockSelection
Specifies USB and RNG Clock Selection This parameter can be a value of
RCCEx_USB_Clock_Source
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37.1.2 RCC_CRSInitTypeDef
Data Fields
uint32_t Prescaler
uint32_t Source
uint32_t Polarity
uint32_t ReloadValue
uint32_t ErrorLimitValue
uint32_t HSI48CalibrationValue
Field Documentation
uint32_t RCC_CRSInitTypeDef::Prescaler
Specifies the division factor of the SYNC signal. This parameter can be a value of
RCCEx_CRS_SynchroDivider
uint32_t RCC_CRSInitTypeDef::Source
Specifies the SYNC signal source. This parameter can be a value of
RCCEx_CRS_SynchroSource
uint32_t RCC_CRSInitTypeDef::Polarity
Specifies the input polarity for the SYNC signal source. This parameter can be a value
of RCCEx_CRS_SynchroPolarity
uint32_t RCC_CRSInitTypeDef::ReloadValue
Specifies the value to be loaded in the frequency error counter with each SYNC event.
It can be calculated in using macro
__HAL_RCC_CRS_RELOADVALUE_CALCULATE(__FTARGET__, __FSYNC__)
This parameter must be a number between 0 and 0xFFFF or a value of
RCCEx_CRS_ReloadValueDefault .
uint32_t RCC_CRSInitTypeDef::ErrorLimitValue
Specifies the value to be used to evaluate the captured frequency error value. This
parameter must be a number between 0 and 0xFF or a value of
RCCEx_CRS_ErrorLimitDefault
uint32_t RCC_CRSInitTypeDef::HSI48CalibrationValue
Specifies a user-programmable trimming value to the HSI48 oscillator. This parameter
must be a number between 0 and 0x3F or a value of
RCCEx_CRS_HSI48CalibrationDefault
37.1.3 RCC_CRSSynchroInfoTypeDef
Data Fields
uint32_t ReloadValue
uint32_t HSI48CalibrationValue
uint32_t FreqErrorCapture
uint32_t FreqErrorDirection
Field Documentation
uint32_t RCC_CRSSynchroInfoTypeDef::ReloadValue
Specifies the value loaded in the Counter reload value. This parameter must be a
number between 0 and 0xFFFF
uint32_t RCC_CRSSynchroInfoTypeDef::HSI48CalibrationValue
Specifies value loaded in HSI48 oscillator smooth trimming. This parameter must be a
number between 0 and 0x3F
uint32_t RCC_CRSSynchroInfoTypeDef::FreqErrorCapture
Specifies the value loaded in the .FECAP, the frequency error counter value latched in
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the time of the last SYNC event. This parameter must be a number between 0 and
0xFFFF
uint32_t RCC_CRSSynchroInfoTypeDef::FreqErrorDirection
Specifies the value loaded in the .FEDIR, the counting direction of the frequency error
counter latched in the time of the last SYNC event. It shows whether the actual
frequency is below or above the target. This parameter must be a value of
RCCEx_CRS_FreqErrorDirection
37.2 RCCEx Firmware driver API description
37.2.1 Extended Peripheral Control functions
This subsection provides a set of functions allowing to control the RCC Clocks
frequencies.
Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is
used to select the RTC clock source; in this case the Backup domain will be reset
in order to modify the RTC Clock source, as consequence RTC registers
(including the backup registers) are set to their reset values.
This section contains the following APIs:
HAL_RCCEx_PeriphCLKConfig()
HAL_RCCEx_GetPeriphCLKConfig()
HAL_RCCEx_GetPeriphCLKFreq()
HAL_RCCEx_EnableLSECSS()
HAL_RCCEx_DisableLSECSS()
HAL_RCCEx_EnableLSECSS_IT()
HAL_RCCEx_LSECSS_IRQHandler()
HAL_RCCEx_LSECSS_Callback()
HAL_RCCEx_EnableHSI48_VREFINT()
HAL_RCCEx_DisableHSI48_VREFINT()
37.2.2 Extended Clock Recovery System Control functions
For devices with Clock Recovery System feature (CRS), RCC Extention HAL driver can be
used as follows:
1. In System clock config, HSI48 needs to be enabled
2. Enable CRS clock in IP MSP init which will use CRS functions
3. Call CRS functions as follows:
a. Prepare synchronization configuration necessary for HSI48 calibration
Default values can be set for frequency Error Measurement (reload and
error limit) and also HSI48 oscillator smooth trimming.
Macro @ref __HAL_RCC_CRS_RELOADVALUE_CALCULATE can be also
used to calculate directly reload value with target and synchronization
frequencies values
b. Call function @ref HAL_RCCEx_CRSConfig which
Reset CRS registers to their default values.
Configure CRS registers with synchronization configuration
Enable automatic calibration and frequency error counter feature Note:
When using USB LPM (Link Power Management) and the device is in Sleep
mode, the periodic USB SOF will not be generated by the host. No SYNC
signal will therefore be provided to the CRS to calibrate the HSI48 on the
run. To guarantee the required clock precision after waking up from Sleep
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mode, the LSE or reference clock on the GPIOs should be used as SYNC
signal.
c. A polling function is provided to wait for complete synchronization
Call function @ref HAL_RCCEx_CRSWaitSynchronization()
According to CRS status, user can decide to adjust again the calibration or
continue application if synchronization is OK
4. User can retrieve information related to synchronization in calling function @ref
HAL_RCCEx_CRSGetSynchronizationInfo()
5. Regarding synchronization status and synchronization information, user can try a new
calibration in changing synchronization configuration and call again
HAL_RCCEx_CRSConfig. Note: When the SYNC event is detected during the
downcounting phase (before reaching the zero value), it means that the actual
frequency is lower than the target (and so, that the TRIM value should be
incremented), while when it is detected during the upcounting phase it means that the
actual frequency is higher (and that the TRIM value should be decremented).
6. In interrupt mode, user can resort to the available macros
(__HAL_RCC_CRS_XXX_IT). Interrupts will go through CRS Handler
(RCC_IRQn/RCC_IRQHandler)
Call function @ref HAL_RCCEx_CRSConfig()
Enable RCC_IRQn (thanks to NVIC functions)
Enable CRS interrupt (@ref __HAL_RCC_CRS_ENABLE_IT)
Implement CRS status management in the following user callbacks called from
HAL_RCCEx_CRS_IRQHandler():
@ref HAL_RCCEx_CRS_SyncOkCallback()
@ref HAL_RCCEx_CRS_SyncWarnCallback()
@ref HAL_RCCEx_CRS_ExpectedSyncCallback()
@ref HAL_RCCEx_CRS_ErrorCallback()
7. To force a SYNC EVENT, user can use the function @ref
HAL_RCCEx_CRSSoftwareSynchronizationGenerate(). This function can be called
before calling @ref HAL_RCCEx_CRSConfig (for instance in Systick handler)
This section contains the following APIs:
HAL_RCCEx_CRSConfig()
HAL_RCCEx_CRSSoftwareSynchronizationGenerate()
HAL_RCCEx_CRSGetSynchronizationInfo()
HAL_RCCEx_CRSWaitSynchronization()
HAL_RCCEx_CRS_IRQHandler()
HAL_RCCEx_CRS_SyncOkCallback()
HAL_RCCEx_CRS_SyncWarnCallback()
HAL_RCCEx_CRS_ExpectedSyncCallback()
HAL_RCCEx_CRS_ErrorCallback()
37.2.3 Detailed description of functions
HAL_RCCEx_PeriphCLKConfig
Function name
HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig
(RCC_PeriphCLKInitTypeDef * PeriphClkInit)
Function description
Initializes the RCC extended peripherals clocks according to the
specified parameters in the RCC_PeriphCLKInitTypeDef.
Parameters
PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef
structure that contains the configuration information for the
Extended Peripherals clocks(USART1,USART2, LPUART1,
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I2C1, I2C3, RTC, USB/RNG and LPTIM1 clocks).
Return values
HAL: status
Notes
If HAL_ERROR returned, first switch-OFF HSE clock
oscillator with HAL_RCC_OscConfig() to possibly update
HSE divider.
HAL_RCCEx_GetPeriphCLKConfig
Function name
void HAL_RCCEx_GetPeriphCLKConfig
(RCC_PeriphCLKInitTypeDef * PeriphClkInit)
Function description
Get the PeriphClkInit according to the internal RCC configuration
registers.
Parameters
PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef
structure that returns the configuration information for the
Extended Peripherals clocks(USART1,USART2, LPUART1,
I2C1, I2C3, RTC, USB/RNG and LPTIM1 clocks).
Return values
None
HAL_RCCEx_GetPeriphCLKFreq
Function name
uint32_t HAL_RCCEx_GetPeriphCLKFreq (uint32_t PeriphClk)
Function description
Return the peripheral clock frequency.
Parameters
PeriphClk: Peripheral clock identifier This parameter can be
one of the following values:
RCC_PERIPHCLK_RTC RTC peripheral clock
RCC_PERIPHCLK_LCD LCD peripheral clock (*)
RCC_PERIPHCLK_USB USB or RNG peripheral clock
(*)
RCC_PERIPHCLK_USART1 USART1 peripheral clock
(*)
RCC_PERIPHCLK_USART2 USART2 peripheral clock
RCC_PERIPHCLK_LPUART1 LPUART1 peripheral
clock
RCC_PERIPHCLK_I2C1 I2C1 peripheral clock
RCC_PERIPHCLK_I2C2 I2C2 peripheral clock (*)
RCC_PERIPHCLK_I2C3 I2C3 peripheral clock (*)
Return values
Frequency: in Hz (0: means that no available frequency for
the peripheral)
Notes
Return 0 if peripheral clock is unknown
(*) means that this peripheral is not present on all the devices
HAL_RCCEx_EnableLSECSS
Function name
void HAL_RCCEx_EnableLSECSS (void )
Function description
Enables the LSE Clock Security System.
Return values
None
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HAL_RCCEx_DisableLSECSS
Function name
void HAL_RCCEx_DisableLSECSS (void )
Function description
Disables the LSE Clock Security System.
Return values
None
Notes
Once enabled this bit cannot be disabled, except after an LSE
failure detection (LSECSSD=1). In that case the software
MUST disable the LSECSSON bit. Reset by power on reset
and RTC software reset (RTCRST bit).
HAL_RCCEx_EnableLSECSS_IT
Function name
void HAL_RCCEx_EnableLSECSS_IT (void )
Function description
Enable the LSE Clock Security System IT & corresponding EXTI
line.
Return values
None
Notes
LSE Clock Security System IT is mapped on RTC EXTI line
19
HAL_RCCEx_LSECSS_IRQHandler
Function name
void HAL_RCCEx_LSECSS_IRQHandler (void )
Function description
Handle the RCC LSE Clock Security System interrupt request.
Return values
None
HAL_RCCEx_LSECSS_Callback
Function name
void HAL_RCCEx_LSECSS_Callback (void )
Function description
RCCEx LSE Clock Security System interrupt callback.
Return values
None
HAL_RCCEx_EnableHSI48_VREFINT
Function name
void HAL_RCCEx_EnableHSI48_VREFINT (void )
Function description
Enables Vrefint for the HSI48.
Return values
None
Notes
This is functional only if the LOCK is not set
HAL_RCCEx_DisableHSI48_VREFINT
Function name
void HAL_RCCEx_DisableHSI48_VREFINT (void )
Function description
Disables the Vrefint for the HSI48.
Return values
None
Notes
This is functional only if the LOCK is not set
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HAL_RCCEx_CRSConfig
Function name
void HAL_RCCEx_CRSConfig (RCC_CRSInitTypeDef * pInit)
Function description
Start automatic synchronization for polling mode.
Parameters
pInit: Pointer on RCC_CRSInitTypeDef structure
Return values
None
HAL_RCCEx_CRSSoftwareSynchronizationGenerate
Function name
void HAL_RCCEx_CRSSoftwareSynchronizationGenerate
(void )
Function description
Generate the software synchronization event.
Return values
None
HAL_RCCEx_CRSGetSynchronizationInfo
Function name
void HAL_RCCEx_CRSGetSynchronizationInfo
(RCC_CRSSynchroInfoTypeDef * pSynchroInfo)
Function description
Return synchronization info.
Parameters
pSynchroInfo: Pointer on RCC_CRSSynchroInfoTypeDef
structure
Return values
None
HAL_RCCEx_CRSWaitSynchronization
Function name
uint32_t HAL_RCCEx_CRSWaitSynchronization (uint32_t
Timeout)
Function description
Wait for CRS Synchronization status.
Parameters
Timeout: Duration of the timeout
Return values
Combination: of Synchronization status This parameter can
be a combination of the following values:
RCC_CRS_TIMEOUT
RCC_CRS_SYNCOK
RCC_CRS_SYNCWARN
RCC_CRS_SYNCERR
RCC_CRS_SYNCMISS
RCC_CRS_TRIMOVF
Notes
Timeout is based on the maximum time to receive a SYNC
event based on synchronization frequency.
If Timeout set to HAL_MAX_DELAY, HAL_TIMEOUT will be
never returned.
HAL_RCCEx_CRS_IRQHandler
Function name
void HAL_RCCEx_CRS_IRQHandler (void )
Function description
Handle the Clock Recovery System interrupt request.
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Return values
None
HAL_RCCEx_CRS_SyncOkCallback
Function name
void HAL_RCCEx_CRS_SyncOkCallback (void )
Function description
RCCEx Clock Recovery System SYNCOK interrupt callback.
Return values
None
HAL_RCCEx_CRS_SyncWarnCallback
Function name
void HAL_RCCEx_CRS_SyncWarnCallback (void )
Function description
RCCEx Clock Recovery System SYNCWARN interrupt callback.
Return values
None
HAL_RCCEx_CRS_ExpectedSyncCallback
Function name
void HAL_RCCEx_CRS_ExpectedSyncCallback (void )
Function description
RCCEx Clock Recovery System Expected SYNC interrupt
callback.
Return values
None
HAL_RCCEx_CRS_ErrorCallback
Function name
void HAL_RCCEx_CRS_ErrorCallback (uint32_t Error)
Function description
RCCEx Clock Recovery System Error interrupt callback.
Parameters
Error: Combination of Error status. This parameter can be a
combination of the following values:
RCC_CRS_SYNCERR
RCC_CRS_SYNCMISS
RCC_CRS_TRIMOVF
Return values
None
37.3 RCCEx Firmware driver defines
37.3.1 RCCEx
AHB Peripheral Clock Sleep Enable Disable
__HAL_RCC_TSC_CLK_SLEEP_ENABLE
__HAL_RCC_RNG_CLK_SLEEP_ENABLE
__HAL_RCC_TSC_CLK_SLEEP_DISABLE
__HAL_RCC_RNG_CLK_SLEEP_DISABLE
__HAL_RCC_TSC_IS_CLK_SLEEP_ENABLED
__HAL_RCC_RNG_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TSC_IS_CLK_SLEEP_DISABLED
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__HAL_RCC_RNG_IS_CLK_SLEEP_DISABLED
AHB Peripheral Force Release Reset
__HAL_RCC_TSC_FORCE_RESET
__HAL_RCC_TSC_RELEASE_RESET
__HAL_RCC_RNG_FORCE_RESET
__HAL_RCC_RNG_RELEASE_RESET
APB1 Peripheral Clock Enable Disable
__HAL_RCC_USB_CLK_ENABLE
__HAL_RCC_USB_CLK_DISABLE
__HAL_RCC_USB_IS_CLK_ENABLED
__HAL_RCC_USB_IS_CLK_DISABLED
__HAL_RCC_CRS_CLK_ENABLE
__HAL_RCC_CRS_CLK_DISABLE
__HAL_RCC_CRS_IS_CLK_ENABLED
__HAL_RCC_CRS_IS_CLK_DISABLED
__HAL_RCC_LCD_CLK_ENABLE
__HAL_RCC_LCD_CLK_DISABLE
__HAL_RCC_LCD_IS_CLK_ENABLED
__HAL_RCC_LCD_IS_CLK_DISABLED
__HAL_RCC_TIM2_CLK_ENABLE
__HAL_RCC_TIM3_CLK_ENABLE
__HAL_RCC_TIM6_CLK_ENABLE
__HAL_RCC_TIM7_CLK_ENABLE
__HAL_RCC_SPI2_CLK_ENABLE
__HAL_RCC_USART2_CLK_ENABLE
__HAL_RCC_USART4_CLK_ENABLE
__HAL_RCC_USART5_CLK_ENABLE
__HAL_RCC_LPUART1_CLK_ENABLE
__HAL_RCC_I2C1_CLK_ENABLE
__HAL_RCC_I2C2_CLK_ENABLE
__HAL_RCC_I2C3_CLK_ENABLE
__HAL_RCC_DAC_CLK_ENABLE
__HAL_RCC_LPTIM1_CLK_ENABLE
__HAL_RCC_TIM2_CLK_DISABLE
__HAL_RCC_TIM3_CLK_DISABLE
__HAL_RCC_TIM6_CLK_DISABLE
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__HAL_RCC_TIM7_CLK_DISABLE
__HAL_RCC_SPI2_CLK_DISABLE
__HAL_RCC_USART2_CLK_DISABLE
__HAL_RCC_USART4_CLK_DISABLE
__HAL_RCC_USART5_CLK_DISABLE
__HAL_RCC_LPUART1_CLK_DISABLE
__HAL_RCC_I2C1_CLK_DISABLE
__HAL_RCC_I2C2_CLK_DISABLE
__HAL_RCC_I2C3_CLK_DISABLE
__HAL_RCC_DAC_CLK_DISABLE
__HAL_RCC_LPTIM1_CLK_DISABLE
__HAL_RCC_TIM2_IS_CLK_ENABLED
__HAL_RCC_TIM3_IS_CLK_ENABLED
__HAL_RCC_TIM6_IS_CLK_ENABLED
__HAL_RCC_TIM7_IS_CLK_ENABLED
__HAL_RCC_SPI2_IS_CLK_ENABLED
__HAL_RCC_USART2_IS_CLK_ENABLED
__HAL_RCC_USART4_IS_CLK_ENABLED
__HAL_RCC_USART5_IS_CLK_ENABLED
__HAL_RCC_LPUART1_IS_CLK_ENABLED
__HAL_RCC_I2C1_IS_CLK_ENABLED
__HAL_RCC_I2C2_IS_CLK_ENABLED
__HAL_RCC_I2C3_IS_CLK_ENABLED
__HAL_RCC_DAC_IS_CLK_ENABLED
__HAL_RCC_LPTIM1_IS_CLK_ENABLED
__HAL_RCC_TIM2_IS_CLK_DISABLED
__HAL_RCC_TIM3_IS_CLK_DISABLED
__HAL_RCC_TIM6_IS_CLK_DISABLED
__HAL_RCC_TIM7_IS_CLK_DISABLED
__HAL_RCC_SPI2_IS_CLK_DISABLED
__HAL_RCC_USART2_IS_CLK_DISABLED
__HAL_RCC_USART4_IS_CLK_DISABLED
__HAL_RCC_USART5_IS_CLK_DISABLED
__HAL_RCC_LPUART1_IS_CLK_DISABLED
__HAL_RCC_I2C1_IS_CLK_DISABLED
__HAL_RCC_I2C2_IS_CLK_DISABLED
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__HAL_RCC_I2C3_IS_CLK_DISABLED
__HAL_RCC_DAC_IS_CLK_DISABLED
__HAL_RCC_LPTIM1_IS_CLK_DISABLED
APB1 Peripheral Clock Sleep Enable Disable
__HAL_RCC_TIM2_CLK_SLEEP_ENABLE
__HAL_RCC_TIM3_CLK_SLEEP_ENABLE
__HAL_RCC_TIM6_CLK_SLEEP_ENABLE
__HAL_RCC_TIM7_CLK_SLEEP_ENABLE
__HAL_RCC_SPI2_CLK_SLEEP_ENABLE
__HAL_RCC_USART2_CLK_SLEEP_ENABLE
__HAL_RCC_USART4_CLK_SLEEP_ENABLE
__HAL_RCC_USART5_CLK_SLEEP_ENABLE
__HAL_RCC_LPUART1_CLK_SLEEP_ENABLE
__HAL_RCC_I2C1_CLK_SLEEP_ENABLE
__HAL_RCC_I2C2_CLK_SLEEP_ENABLE
__HAL_RCC_I2C3_CLK_SLEEP_ENABLE
__HAL_RCC_DAC_CLK_SLEEP_ENABLE
__HAL_RCC_LPTIM1_CLK_SLEEP_ENABLE
__HAL_RCC_TIM2_CLK_SLEEP_DISABLE
__HAL_RCC_TIM3_CLK_SLEEP_DISABLE
__HAL_RCC_TIM6_CLK_SLEEP_DISABLE
__HAL_RCC_TIM7_CLK_SLEEP_DISABLE
__HAL_RCC_SPI2_CLK_SLEEP_DISABLE
__HAL_RCC_USART2_CLK_SLEEP_DISABLE
__HAL_RCC_USART4_CLK_SLEEP_DISABLE
__HAL_RCC_USART5_CLK_SLEEP_DISABLE
__HAL_RCC_LPUART1_CLK_SLEEP_DISABLE
__HAL_RCC_I2C1_CLK_SLEEP_DISABLE
__HAL_RCC_I2C2_CLK_SLEEP_DISABLE
__HAL_RCC_I2C3_CLK_SLEEP_DISABLE
__HAL_RCC_DAC_CLK_SLEEP_DISABLE
__HAL_RCC_LPTIM1_CLK_SLEEP_DISABLE
__HAL_RCC_TIM2_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM3_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM6_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM7_IS_CLK_SLEEP_ENABLED
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__HAL_RCC_SPI2_IS_CLK_SLEEP_ENABLED
__HAL_RCC_USART2_IS_CLK_SLEEP_ENABLED
__HAL_RCC_USART4_IS_CLK_SLEEP_ENABLED
__HAL_RCC_USART5_IS_CLK_SLEEP_ENABLED
__HAL_RCC_LPUART1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_I2C1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_I2C2_IS_CLK_SLEEP_ENABLED
__HAL_RCC_I2C3_IS_CLK_SLEEP_ENABLED
__HAL_RCC_DAC_IS_CLK_SLEEP_ENABLED
__HAL_RCC_LPTIM1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM2_IS_CLK_SLEEP_DISABLED
__HAL_RCC_TIM3_IS_CLK_SLEEP_DISABLED
__HAL_RCC_TIM6_IS_CLK_SLEEP_DISABLED
__HAL_RCC_TIM7_IS_CLK_SLEEP_DISABLED
__HAL_RCC_SPI2_IS_CLK_SLEEP_DISABLED
__HAL_RCC_USART2_IS_CLK_SLEEP_DISABLED
__HAL_RCC_USART4_IS_CLK_SLEEP_DISABLED
__HAL_RCC_USART5_IS_CLK_SLEEP_DISABLED
__HAL_RCC_LPUART1_IS_CLK_SLEEP_DISABLED
__HAL_RCC_I2C1_IS_CLK_SLEEP_DISABLED
__HAL_RCC_I2C2_IS_CLK_SLEEP_DISABLED
__HAL_RCC_I2C3_IS_CLK_SLEEP_DISABLED
__HAL_RCC_DAC_IS_CLK_SLEEP_DISABLED
__HAL_RCC_LPTIM1_IS_CLK_SLEEP_DISABLED
__HAL_RCC_USB_CLK_SLEEP_ENABLE
__HAL_RCC_USB_CLK_SLEEP_DISABLE
__HAL_RCC_CRS_CLK_SLEEP_ENABLE
__HAL_RCC_CRS_CLK_SLEEP_DISABLE
__HAL_RCC_USB_IS_CLK_SLEEP_ENABLED
__HAL_RCC_USB_IS_CLK_SLEEP_DISABLED
__HAL_RCC_CRS_IS_CLK_SLEEP_ENABLED
__HAL_RCC_CRS_IS_CLK_SLEEP_DISABLED
__HAL_RCC_LCD_CLK_SLEEP_ENABLE
__HAL_RCC_LCD_CLK_SLEEP_DISABLE
__HAL_RCC_LCD_IS_CLK_SLEEP_ENABLED
__HAL_RCC_LCD_IS_CLK_SLEEP_DISABLED
APB1 Peripheral Force Release Reset
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__HAL_RCC_TIM2_FORCE_RESET
__HAL_RCC_TIM3_FORCE_RESET
__HAL_RCC_TIM6_FORCE_RESET
__HAL_RCC_TIM7_FORCE_RESET
__HAL_RCC_LPTIM1_FORCE_RESET
__HAL_RCC_I2C1_FORCE_RESET
__HAL_RCC_I2C2_FORCE_RESET
__HAL_RCC_I2C3_FORCE_RESET
__HAL_RCC_USART2_FORCE_RESET
__HAL_RCC_USART4_FORCE_RESET
__HAL_RCC_USART5_FORCE_RESET
__HAL_RCC_LPUART1_FORCE_RESET
__HAL_RCC_SPI2_FORCE_RESET
__HAL_RCC_DAC_FORCE_RESET
__HAL_RCC_TIM2_RELEASE_RESET
__HAL_RCC_TIM3_RELEASE_RESET
__HAL_RCC_TIM6_RELEASE_RESET
__HAL_RCC_TIM7_RELEASE_RESET
__HAL_RCC_LPTIM1_RELEASE_RESET
__HAL_RCC_I2C1_RELEASE_RESET
__HAL_RCC_I2C2_RELEASE_RESET
__HAL_RCC_I2C3_RELEASE_RESET
__HAL_RCC_USART2_RELEASE_RESET
__HAL_RCC_USART4_RELEASE_RESET
__HAL_RCC_USART5_RELEASE_RESET
__HAL_RCC_LPUART1_RELEASE_RESET
__HAL_RCC_SPI2_RELEASE_RESET
__HAL_RCC_DAC_RELEASE_RESET
__HAL_RCC_USB_FORCE_RESET
__HAL_RCC_USB_RELEASE_RESET
__HAL_RCC_CRS_FORCE_RESET
__HAL_RCC_CRS_RELEASE_RESET
__HAL_RCC_LCD_FORCE_RESET
__HAL_RCC_LCD_RELEASE_RESET
APB2 Peripheral Clock Enable Disable
__HAL_RCC_TIM21_CLK_ENABLE
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__HAL_RCC_TIM22_CLK_ENABLE
__HAL_RCC_ADC1_CLK_ENABLE
__HAL_RCC_SPI1_CLK_ENABLE
__HAL_RCC_USART1_CLK_ENABLE
__HAL_RCC_TIM21_CLK_DISABLE
__HAL_RCC_TIM22_CLK_DISABLE
__HAL_RCC_ADC1_CLK_DISABLE
__HAL_RCC_SPI1_CLK_DISABLE
__HAL_RCC_USART1_CLK_DISABLE
__HAL_RCC_FIREWALL_CLK_ENABLE
__HAL_RCC_FIREWALL_CLK_DISABLE
__HAL_RCC_TIM21_IS_CLK_ENABLED
__HAL_RCC_TIM22_IS_CLK_ENABLED
__HAL_RCC_ADC1_IS_CLK_ENABLED
__HAL_RCC_SPI1_IS_CLK_ENABLED
__HAL_RCC_USART1_IS_CLK_ENABLED
__HAL_RCC_TIM21_IS_CLK_DISABLED
__HAL_RCC_TIM22_IS_CLK_DISABLED
__HAL_RCC_ADC1_IS_CLK_DISABLED
__HAL_RCC_SPI1_IS_CLK_DISABLED
__HAL_RCC_USART1_IS_CLK_DISABLED
__HAL_RCC_FIREWALL_IS_CLK_ENABLED
__HAL_RCC_FIREWALL_IS_CLK_DISABLED
APB2 Peripheral Clock Sleep Enable Disable
__HAL_RCC_TIM21_CLK_SLEEP_ENABLE
__HAL_RCC_TIM22_CLK_SLEEP_ENABLE
__HAL_RCC_ADC1_CLK_SLEEP_ENABLE
__HAL_RCC_SPI1_CLK_SLEEP_ENABLE
__HAL_RCC_USART1_CLK_SLEEP_ENABLE
__HAL_RCC_TIM21_CLK_SLEEP_DISABLE
__HAL_RCC_TIM22_CLK_SLEEP_DISABLE
__HAL_RCC_ADC1_CLK_SLEEP_DISABLE
__HAL_RCC_SPI1_CLK_SLEEP_DISABLE
__HAL_RCC_USART1_CLK_SLEEP_DISABLE
__HAL_RCC_TIM21_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM22_IS_CLK_SLEEP_ENABLED
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__HAL_RCC_ADC1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_SPI1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_USART1_IS_CLK_SLEEP_ENABLED
__HAL_RCC_TIM21_IS_CLK_SLEEP_DISABLED
__HAL_RCC_TIM22_IS_CLK_SLEEP_DISABLED
__HAL_RCC_ADC1_IS_CLK_SLEEP_DISABLED
__HAL_RCC_SPI1_IS_CLK_SLEEP_DISABLED
__HAL_RCC_USART1_IS_CLK_SLEEP_DISABLED
APB2 Peripheral Force Release Reset
__HAL_RCC_USART1_FORCE_RESET
__HAL_RCC_ADC1_FORCE_RESET
__HAL_RCC_SPI1_FORCE_RESET
__HAL_RCC_TIM21_FORCE_RESET
__HAL_RCC_TIM22_FORCE_RESET
__HAL_RCC_USART1_RELEASE_RESET
__HAL_RCC_ADC1_RELEASE_RESET
__HAL_RCC_SPI1_RELEASE_RESET
__HAL_RCC_TIM21_RELEASE_RESET
__HAL_RCC_TIM22_RELEASE_RESET
RCCEx CRS Default Error Limit Value
RCC_CRS_ERRORLIMIT_DEFAULT
Default Frequency error limit
RCCEx CRS Flags
RCC_CRS_FLAG_SYNCOK
SYNC event OK flag
RCC_CRS_FLAG_SYNCWARN
SYNC warning flag
RCC_CRS_FLAG_ERR
Error flag
RCC_CRS_FLAG_ESYNC
Expected SYNC flag
RCC_CRS_FLAG_SYNCERR
SYNC error
RCC_CRS_FLAG_SYNCMISS
SYNC missed
RCC_CRS_FLAG_TRIMOVF
Trimming overflow or underflow
RCCEx CRS Frequency Error Direction
RCC_CRS_FREQERRORDIR_UP
Upcounting direction, the actual frequency is
above the target
RCC_CRS_FREQERRORDIR_DOWN
Downcounting direction, the actual frequency is
below the target
RCCEx CRS Default HSI48 Calibration vakye
RCC_CRS_HSI48CALIBRATION_DEFAULT
The default value is 32, which corresponds
to the middle of the trimming interval. The
trimming step is around 67 kHz between
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two consecutive TRIM steps. A higher
TRIM value corresponds to a higher output
frequency
RCCEx CRS Interrupt Sources
RCC_CRS_IT_SYNCOK
SYNC event OK
RCC_CRS_IT_SYNCWARN
SYNC warning
RCC_CRS_IT_ERR
Error
RCC_CRS_IT_ESYNC
Expected SYNC
RCC_CRS_IT_SYNCERR
SYNC error
RCC_CRS_IT_SYNCMISS
SYNC missed
RCC_CRS_IT_TRIMOVF
Trimming overflow or underflow
RCCEx CRS Default Reload Value
RCC_CRS_RELOADVALUE_DEFAULT
The reset value of the RELOAD field
corresponds to a target frequency of 48 MHz
and a synchronization signal frequency of 1 kHz
(SOF signal from USB).
RCCEx CRS Status
RCC_CRS_NONE
RCC_CRS_TIMEOUT
RCC_CRS_SYNCOK
RCC_CRS_SYNCWARN
RCC_CRS_SYNCERR
RCC_CRS_SYNCMISS
RCC_CRS_TRIMOVF
RCCEx CRS Synchronization Divider
RCC_CRS_SYNC_DIV1
Synchro Signal not divided (default)
RCC_CRS_SYNC_DIV2
Synchro Signal divided by 2
RCC_CRS_SYNC_DIV4
Synchro Signal divided by 4
RCC_CRS_SYNC_DIV8
Synchro Signal divided by 8
RCC_CRS_SYNC_DIV16
Synchro Signal divided by 16
RCC_CRS_SYNC_DIV32
Synchro Signal divided by 32
RCC_CRS_SYNC_DIV64
Synchro Signal divided by 64
RCC_CRS_SYNC_DIV128
Synchro Signal divided by 128
RCCEx CRS Synchronization Polarity
RCC_CRS_SYNC_POLARITY_RISING
Synchro Active on rising edge (default)
RCC_CRS_SYNC_POLARITY_FALLING
Synchro Active on falling edge
RCCEx CRS Synchronization Source
RCC_CRS_SYNC_SOURCE_GPIO
Synchro Signal source GPIO
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RCC_CRS_SYNC_SOURCE_LSE
Synchro Signal source LSE
RCC_CRS_SYNC_SOURCE_USB
Synchro Signal source USB SOF (default)
RCCEx Exported Macros
__HAL_RCC_LSECSS_EXTI_ENABLE_IT
Description:
Enable interrupt on RCC LSE CSS
EXTI Line 19.
Return value:
None
__HAL_RCC_LSECSS_EXTI_DISABLE_IT
Description:
Disable interrupt on RCC LSE
CSS EXTI Line 19.
Return value:
None
__HAL_RCC_LSECSS_EXTI_ENABLE_EVENT
Description:
Enable event on RCC LSE CSS
EXTI Line 19.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_DISABLE_
EVENT
Description:
Disable event on RCC LSE CSS
EXTI Line 19.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_ENABLE_
FALLING_EDGE
Description:
RCC LSE CSS EXTI line
configuration: set falling edge
trigger.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_DISABLE_
FALLING_EDGE
Description:
Disable the RCC LSE CSS
Extended Interrupt Falling Trigger.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_ENABLE_RISING
_EDGE
Description:
RCC LSE CSS EXTI line
configuration: set rising edge
trigger.
Return value:
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None.
__HAL_RCC_LSECSS_EXTI_DISABLE_
RISING_EDGE
Description:
Disable the RCC LSE CSS
Extended Interrupt Rising Trigger.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_ENABLE_RISING
_FALLING_EDGE
Description:
RCC LSE CSS EXTI line
configuration: set rising & falling
edge trigger.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_DISABLE_
RISING_FALLING_EDGE
Description:
Disable the RCC LSE CSS
Extended Interrupt Rising & Falling
Trigger.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_GET_FLAG
Description:
Check whether the specified RCC
LSE CSS EXTI interrupt flag is set
or not.
Return value:
EXTI: RCC LSE CSS Line Status.
__HAL_RCC_LSECSS_EXTI_CLEAR_FLAG
Description:
Clear the RCC LSE CSS EXTI
flag.
Return value:
None.
__HAL_RCC_LSECSS_EXTI_GENERATE_
SWIT
Description:
Generate a Software interrupt on
selected EXTI line.
Return value:
None.
__HAL_RCC_I2C1_CONFIG
Description:
Macro to configure the I2C1 clock
(I2C1CLK).
Parameters:
__I2C1_CLKSOURCE__: specifies
the I2C1 clock source. This
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parameter can be one of the
following values:
RCC_I2C1CLKSOURCE_PC
LK1 PCLK1 selected as I2C1
clock
RCC_I2C1CLKSOURCE_HSI
HSI selected as I2C1 clock
RCC_I2C1CLKSOURCE_SY
SCLK System Clock selected
as I2C1 clock
__HAL_RCC_GET_I2C1_SOURCE
Description:
Macro to get the I2C1 clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_I2C1CLKSOURCE_PC
LK1 PCLK1 selected as I2C1
clock
RCC_I2C1CLKSOURCE_HSI
HSI selected as I2C1 clock
RCC_I2C1CLKSOURCE_SY
SCLK System Clock selected
as I2C1 clock
__HAL_RCC_I2C3_CONFIG
Description:
Macro to configure the I2C3 clock
(I2C3CLK).
Parameters:
__I2C3_CLKSOURCE__: specifies
the I2C3 clock source. This
parameter can be one of the
following values:
RCC_I2C3CLKSOURCE_PC
LK1 PCLK1 selected as I2C3
clock
RCC_I2C3CLKSOURCE_HSI
HSI selected as I2C3 clock
RCC_I2C3CLKSOURCE_SY
SCLK System Clock selected
as I2C3 clock
__HAL_RCC_GET_I2C3_SOURCE
Description:
Macro to get the I2C3 clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_I2C3CLKSOURCE_PC
LK1 PCLK1 selected as I2C3
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clock
RCC_I2C3CLKSOURCE_HSI
HSI selected as I2C3 clock
RCC_I2C3CLKSOURCE_SY
SCLK System Clock selected
as I2C3 clock
__HAL_RCC_USART1_CONFIG
Description:
Macro to configure the USART1
clock (USART1CLK).
Parameters:
__USART1_CLKSOURCE__:
specifies the USART1 clock
source. This parameter can be one
of the following values:
RCC_USART1CLKSOURCE
_PCLK2 PCLK2 selected as
USART1 clock
RCC_USART1CLKSOURCE
_HSI HSI selected as
USART1 clock
RCC_USART1CLKSOURCE
_SYSCLK System Clock
selected as USART1 clock
RCC_USART1CLKSOURCE
_LSE LSE selected as
USART1 clock
__HAL_RCC_GET_USART1_SOURCE
Description:
Macro to get the USART1 clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_USART1CLKSOURCE
_PCLK2 PCLK2 selected as
USART1 clock
RCC_USART1CLKSOURCE
_HSI HSI selected as
USART1 clock
RCC_USART1CLKSOURCE
_SYSCLK System Clock
selected as USART1 clock
RCC_USART1CLKSOURCE
_LSE LSE selected as
USART1 clock
__HAL_RCC_USART2_CONFIG
Description:
Macro to configure the USART2
clock (USART2CLK).
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Parameters:
__USART2_CLKSOURCE__:
specifies the USART2 clock
source. This parameter can be one
of the following values:
RCC_USART2CLKSOURCE
_PCLK1 PCLK1 selected as
USART2 clock
RCC_USART2CLKSOURCE
_HSI HSI selected as
USART2 clock
RCC_USART2CLKSOURCE
_SYSCLK System Clock
selected as USART2 clock
RCC_USART2CLKSOURCE
_LSE LSE selected as
USART2 clock
__HAL_RCC_GET_USART2_SOURCE
Description:
Macro to get the USART2 clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_USART2CLKSOURCE
_PCLK1 PCLK1 selected as
USART2 clock
RCC_USART2CLKSOURCE
_HSI HSI selected as
USART2 clock
RCC_USART2CLKSOURCE
_SYSCLK System Clock
selected as USART2 clock
RCC_USART2CLKSOURCE
_LSE LSE selected as
USART2 clock
__HAL_RCC_LPUART1_CONFIG
Description:
Macro to configure the LPUART1
clock (LPUART1CLK).
Parameters:
__LPUART1_CLKSOURCE__:
specifies the LPUART1 clock
source. This parameter can be one
of the following values:
RCC_LPUART1CLKSOURC
E_PCLK1 PCLK1 selected as
LPUART1 clock
RCC_LPUART1CLKSOURC
E_HSI HSI selected as
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LPUART1 clock
RCC_LPUART1CLKSOURC
E_SYSCLK System Clock
selected as LPUART1 clock
RCC_LPUART1CLKSOURC
E_LSE LSE selected as
LPUART1 clock
__HAL_RCC_GET_LPUART1_SOURCE
Description:
Macro to get the LPUART1 clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_LPUART1CLKSOURC
E_PCLK1 PCLK1 selected as
LPUART1 clock
RCC_LPUART1CLKSOURC
E_HSI HSI selected as
LPUART1 clock
RCC_LPUART1CLKSOURC
E_SYSCLK System Clock
selected as LPUART1 clock
RCC_LPUART1CLKSOURC
E_LSE LSE selected as
LPUART1 clock
__HAL_RCC_LPTIM1_CONFIG
Description:
Macro to configure the LPTIM1
clock (LPTIM1CLK).
Parameters:
__LPTIM1_CLKSOURCE__:
specifies the LPTIM1 clock source.
This parameter can be one of the
following values:
RCC_LPTIM1CLKSOURCE_
PCLK PCLK selected as
LPTIM1 clock
RCC_LPTIM1CLKSOURCE_
LSI HSI selected as LPTIM1
clock
RCC_LPTIM1CLKSOURCE_
HSI LSI selected as LPTIM1
clock
RCC_LPTIM1CLKSOURCE_
LSE LSE selected as LPTIM1
clock
__HAL_RCC_GET_LPTIM1_SOURCE
Description:
Macro to get the LPTIM1 clock
source.
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Return value:
The: clock source can be one of
the following values:
RCC_LPTIM1CLKSOURCE_
PCLK PCLK selected as
LPUART1 clock
RCC_LPTIM1CLKSOURCE_
LSI HSI selected as
LPUART1 clock
RCC_LPTIM1CLKSOURCE_
HSI System Clock selected as
LPUART1 clock
RCC_LPTIM1CLKSOURCE_
LSE LSE selected as
LPUART1 clock
__HAL_RCC_USB_CONFIG
Description:
Macro to configure the USB clock
(USBCLK).
Parameters:
__USB_CLKSOURCE__: specifies
the USB clock source. This
parameter can be one of the
following values:
RCC_USBCLKSOURCE_HSI
48 HSI48 selected as USB
clock
RCC_USBCLKSOURCE_PLL
PLL Clock selected as USB
clock
__HAL_RCC_GET_USB_SOURCE
Description:
Macro to get the USB clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_USBCLKSOURCE_HSI
48 HSI48 selected as USB
clock
RCC_USBCLKSOURCE_PLL
PLL Clock selected as USB
clock
__HAL_RCC_RNG_CONFIG
Description:
Macro to configure the RNG clock
(RNGCLK).
Parameters:
__RNG_CLKSOURCE__:
specifies the USB clock source.
This parameter can be one of the
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following values:
RCC_RNGCLKSOURCE_HSI
48 HSI48 selected as RNG
clock
RCC_RNGCLKSOURCE_PL
LCLK PLL Clock selected as
RNG clock
__HAL_RCC_GET_RNG_SOURCE
Description:
Macro to get the RNG clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_RNGCLKSOURCE_HSI
48 HSI48 selected as RNG
clock
RCC_RNGCLKSOURCE_PL
LCLK PLL Clock selected as
RNG clock
__HAL_RCC_HSI48M_CONFIG
Description:
Macro to select the HSI48M clock
source.
Parameters:
__HSI48M_CLKSOURCE__:
specifies the HSI48M clock source
dedicated for USB an RNG
peripherals. This parameter can be
one of the following values:
RCC_HSI48M_PLL A
dedicated 48MHZ PLL output.
RCC_HSI48M_HSI48 48MHZ
issued from internal HSI48
oscillator.
Notes:
This macro can be replaced by
either
__HAL_RCC_RNG_CONFIG or
__HAL_RCC_USB_CONFIG to
configure respectively RNG or
UBS clock sources.
__HAL_RCC_GET_HSI48M_SOURCE
Description:
Macro to get the HSI48M clock
source.
Return value:
The: clock source can be one of
the following values:
RCC_HSI48M_PLL A
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dedicated 48MHZ PLL output.
RCC_HSI48M_HSI48 48MHZ
issued from internal HSI48
oscillator.
Notes:
This macro can be replaced by
either
__HAL_RCC_GET_RNG_SOURC
E or
__HAL_RCC_GET_USB_SOURC
E to get respectively RNG or UBS
clock sources.
__HAL_RCC_HSISTOP_ENABLE
Notes:
The Enable of this function has not
effect on the HSION bit.
__HAL_RCC_HSISTOP_DISABLE
Description:
Macro to disable the force of the
Internal High Speed oscillator
(HSI) in STOP mode to be quickly
available as kernel clock for
USART and I2C.
Return value:
None
__HAL_RCC_LSEDRIVE_CONFIG
Description:
Macro to configures the External
Low Speed oscillator (LSE) drive
capability.
Parameters:
__RCC_LSEDRIVE__: specifies
the new state of the LSE drive
capability. This parameter can be
one of the following values:
RCC_LSEDRIVE_LOW LSE
oscillator low drive capability.
RCC_LSEDRIVE_MEDIUML
OW LSE oscillator medium
low drive capability.
RCC_LSEDRIVE_MEDIUMHI
GH LSE oscillator medium
high drive capability.
RCC_LSEDRIVE_HIGH LSE
oscillator high drive capability.
Return value:
None
__HAL_RCC_WAKEUPSTOP_CLK_CONFIG
Description:
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Macro to configures the wake up
from stop clock.
Parameters:
__RCC_STOPWUCLK__:
specifies the clock source used
after wake up from stop This
parameter can be one of the
following values:
RCC_STOP_WAKEUPCLOC
K_MSI MSI selected as
system clock source
RCC_STOP_WAKEUPCLOC
K_HSI HSI selected as
system clock source
Return value:
None
__HAL_RCC_CRS_ENABLE_IT
Description:
Enables the specified CRS
interrupts.
Parameters:
__INTERRUPT__: specifies the
CRS interrupt sources to be
enabled. This parameter can be
any combination of the following
values:
RCC_CRS_IT_SYNCOK
RCC_CRS_IT_SYNCWARN
RCC_CRS_IT_ERR
RCC_CRS_IT_ESYNC
Return value:
None
__HAL_RCC_CRS_DISABLE_IT
Description:
Disables the specified CRS
interrupts.
Parameters:
__INTERRUPT__: specifies the
CRS interrupt sources to be
disabled. This parameter can be
any combination of the following
values:
RCC_CRS_IT_SYNCOK
RCC_CRS_IT_SYNCWARN
RCC_CRS_IT_ERR
RCC_CRS_IT_ESYNC
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Return value:
None
__HAL_RCC_CRS_GET_IT_SOURCE
Description:
Check the CRS interrupt has
occurred or not.
Parameters:
__INTERRUPT__: specifies the
CRS interrupt source to check.
This parameter can be one of the
following values:
RCC_CRS_IT_SYNCOK
RCC_CRS_IT_SYNCWARN
RCC_CRS_IT_ERR
RCC_CRS_IT_ESYNC
Return value:
The: new state of
__INTERRUPT__ (SET or
RESET).
__HAL_RCC_CRS_CLEAR_IT
Description:
Clear the CRS interrupt pending
bits bits to clear the selected
interrupt pending bits.
Parameters:
__INTERRUPT__: specifies the
interrupt pending bit to clear. This
parameter can be any combination
of the following values:
RCC_CRS_IT_SYNCOK
RCC_CRS_IT_SYNCWARN
RCC_CRS_IT_ERR
RCC_CRS_IT_ESYNC
RCC_CRS_IT_TRIMOVF
RCC_CRS_IT_SYNCERR
RCC_CRS_IT_SYNCMISS
__HAL_RCC_CRS_GET_FLAG
Description:
Checks whether the specified CRS
flag is set or not.
Parameters:
__FLAG__: specifies the flag to
check. This parameter can be one
of the following values:
RCC_CRS_FLAG_SYNCOK
RCC_CRS_FLAG_SYNCWA
RN
RCC_CRS_FLAG_ERR
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RCC_CRS_FLAG_ESYNC
RCC_CRS_FLAG_TRIMOVF
RCC_CRS_FLAG_SYNCER
R
RCC_CRS_FLAG_SYNCMIS
S
Return value:
The: new state of __FLAG__
(TRUE or FALSE).
__HAL_RCC_CRS_CLEAR_FLAG
Description:
Clears the CRS specified FLAG.
Parameters:
__FLAG__: specifies the flag to
clear. This parameter can be one
of the following values:
RCC_CRS_FLAG_SYNCOK
RCC_CRS_FLAG_SYNCWA
RN
RCC_CRS_FLAG_ERR
RCC_CRS_FLAG_ESYNC
RCC_CRS_FLAG_TRIMOVF
RCC_CRS_FLAG_SYNCER
R
RCC_CRS_FLAG_SYNCMIS
S
Return value:
None
__HAL_RCC_CRS_FREQ_ERROR_COUNTER
_ENABLE
Description:
Enables the oscillator clock for
frequency error counter.
Return value:
None
Notes:
when the CEN bit is set the
CRS_CFGR register becomes
write-protected.
__HAL_RCC_CRS_FREQ_ERROR_COUNTER
_DISABLE
Description:
Disables the oscillator clock for
frequency error counter.
Return value:
None
__HAL_RCC_CRS_AUTOMATIC_CALIB_
ENABLE
Description:
Enables the automatic hardware
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adjustment of TRIM bits.
Return value:
None
Notes:
When the AUTOTRIMEN bit is set
the CRS_CFGR register becomes
write-protected.
__HAL_RCC_CRS_AUTOMATIC_CALIB_
DISABLE
Description:
Enables or disables the automatic
hardware adjustment of TRIM bits.
Return value:
None
__HAL_RCC_CRS_RELOADVALUE_
CALCULATE
Description:
Macro to calculate reload value to
be set in CRS register according to
target and sync frequencies.
Parameters:
__FTARGET__: Target frequency
(value in Hz)
__FSYNC__: Synchronization
signal frequency (value in Hz)
Return value:
None
Notes:
The RELOAD value should be
selected according to the ratio
between the target frequency and
the frequency of the
synchronization source after
prescaling. It is then decreased by
one in order to reach the expected
synchronization on the zero value.
The formula is the following:
RELOAD = (fTARGET / fSYNC) -1
__HAL_RCC_HSI_OUT_ENABLE
Notes:
After reset, the HSI output is not
available
__HAL_RCC_HSI_OUT_DISABLE
Notes:
After reset, the HSI output is not
available
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__HAL_RCC_HSI48_ENABLE
Notes:
After enabling the HSI48, the
application software should wait on
HSI48RDY flag to be set indicating
that HSI48 clock is stable and can
be used to clock the USB. The
HSI48 is stopped by hardware
when entering STOP and
STANDBY modes.
__HAL_RCC_HSI48_DISABLE
__HAL_RCC_GET_HSI48_STATE
Description:
Macro to get the Internal 48Mhz
High Speed oscillator (HSI48)
state.
Return value:
The: clock source can be one of
the following values:
RCC_HSI48_ON HSI48
enabled
RCC_HSI48_OFF HSI48
disabled
__HAL_RCC_HSI48M_DIV6_OUT_ENABLE
Notes:
After reset, the HSI48Mhz (divided
by 6) output is not available
__HAL_RCC_HSI48M_DIV6_OUT_DISABLE
RCC LSE CSS external interrupt line
RCC_EXTI_LINE_LSECSS
External interrupt line 19 connected to the LSE CSS EXTI
Line
RCCEx HSI48M Clock Source
RCC_FLAG_HSI48
RCC_HSI48M_PLL
RCC_HSI48M_HSI48
RCCEx I2C1 Clock Source
RCC_I2C1CLKSOURCE_PCLK1
RCC_I2C1CLKSOURCE_SYSCLK
RCC_I2C1CLKSOURCE_HSI
RCCEx I2C3 Clock Source
RCC_I2C3CLKSOURCE_PCLK1
RCC_I2C3CLKSOURCE_SYSCLK
RCC_I2C3CLKSOURCE_HSI
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IOPORT Peripheral Clock Enable Disable
__HAL_RCC_GPIOE_CLK_ENABLE
__HAL_RCC_GPIOE_CLK_DISABLE
__HAL_RCC_GPIOE_IS_CLK_ENABLED
__HAL_RCC_GPIOE_IS_CLK_DISABLED
__HAL_RCC_GPIOD_CLK_ENABLE
__HAL_RCC_GPIOD_CLK_DISABLE
__HAL_RCC_GPIOD_IS_CLK_ENABLED
__HAL_RCC_GPIOD_IS_CLK_DISABLED
IOPORT Peripheral Clock Sleep Enable Disable
__HAL_RCC_GPIOE_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOE_CLK_SLEEP_DISABLE
__HAL_RCC_GPIOE_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOE_IS_CLK_SLEEP_DISABLED
__HAL_RCC_GPIOD_CLK_SLEEP_ENABLE
__HAL_RCC_GPIOD_CLK_SLEEP_DISABLE
__HAL_RCC_GPIOD_IS_CLK_SLEEP_ENABLED
__HAL_RCC_GPIOD_IS_CLK_SLEEP_DISABLED
IOPORT Peripheral Force Release Reset
__HAL_RCC_GPIOE_FORCE_RESET
__HAL_RCC_GPIOE_RELEASE_RESET
__HAL_RCC_GPIOD_FORCE_RESET
__HAL_RCC_GPIOD_RELEASE_RESET
LCD Configuration
__HAL_RCC_LCD_CONFIG
Description:
Macro to configures LCD clock (LCDCLK).
Parameters:
__LCD_CLKSOURCE__: specifies the
LCD clock source. This parameter can be
one of the following values:
RCC_RTCCLKSOURCE_LSE LSE
selected as LCD clock
RCC_RTCCLKSOURCE_LSI LSI
selected as LCD clock
RCC_RTCCLKSOURCE_HSE_DIV2
HSE divided by 2 selected as LCD
clock
RCC_RTCCLKSOURCE_HSE_DIV4
HSE divided by 4 selected as LCD
clock
RCC_RTCCLKSOURCE_HSE_DIV8
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HSE divided by 8 selected as LCD
clock
RCC_RTCCLKSOURCE_HSE_DIV1
6 HSE divided by 16 selected as LCD
clock
Notes:
LCD and RTC use the same configuration
LCD can however be used in the Stop low
power mode if the LSE or LSI is used as
the LCD clock source.
__HAL_RCC_GET_LCD_SOURCE
__HAL_RCC_GET_LCD_HSE_PRESC
ALER
RCCEx LPTIM1 Clock Source
RCC_LPTIM1CLKSOURCE_PCLK
RCC_LPTIM1CLKSOURCE_LSI
RCC_LPTIM1CLKSOURCE_HSI
RCC_LPTIM1CLKSOURCE_LSE
RCCEx LPUART1 Clock Source
RCC_LPUART1CLKSOURCE_PCLK1
RCC_LPUART1CLKSOURCE_SYSCLK
RCC_LPUART1CLKSOURCE_HSI
RCC_LPUART1CLKSOURCE_LSE
RCCEx LSE Drive Configuration
RCC_LSEDRIVE_LOW
RCC_LSEDRIVE_MEDIUMLOW
RCC_LSEDRIVE_MEDIUMHIGH
RCC_LSEDRIVE_HIGH
RCC Extended MCOx Clock Config
__HAL_RCC_MCO1_CONFIG
Description:
Macro to configure the MCO clock.
Parameters:
__MCOCLKSOURCE__: specifies the MCO clock
source. This parameter can be one of the following
values:
RCC_MCO1SOURCE_NOCLOCK No clock
selected as MCO clock
RCC_MCO1SOURCE_SYSCLK System Clock
selected as MCO clock
RCC_MCO1SOURCE_HSI HSI oscillator clock
selected as MCO clock
RCC_MCO1SOURCE_MSI MSI oscillator clock
selected as MCO clock
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RCC_MCO1SOURCE_HSE HSE oscillator
clock selected as MCO clock
RCC_MCO1SOURCE_PLLCLK PLL clock
selected as MCO clock
RCC_MCO1SOURCE_LSI LSI clock selected
as MCO clock
RCC_MCO1SOURCE_LSE LSE clock selected
as MCO clock
RCC_MCO1SOURCE_HSI48 HSI48 clock
selected as MCO clock
__MCODIV__: specifies the MCO clock prescaler.
This parameter can be one of the following values:
RCC_MCODIV_1 MCO clock source is divided
by 1
RCC_MCODIV_2 MCO clock source is divided
by 2
RCC_MCODIV_4 MCO clock source is divided
by 4
RCC_MCODIV_8 MCO clock source is divided
by 8
RCC_MCODIV_16 MCO clock source is divided
by 16
AHB Peripheral Clock Enable Disable
__HAL_RCC_TSC_CLK_ENABLE
__HAL_RCC_TSC_CLK_DISABLE
__HAL_RCC_TSC_IS_CLK_ENABLED
__HAL_RCC_TSC_IS_CLK_DISABLED
__HAL_RCC_RNG_CLK_ENABLE
__HAL_RCC_RNG_CLK_DISABLE
__HAL_RCC_RNG_IS_CLK_ENABLED
__HAL_RCC_RNG_IS_CLK_DISABLED
RCCEx Periph Clock Selection
RCC_PERIPHCLK_USART1
RCC_PERIPHCLK_USART2
RCC_PERIPHCLK_LPUART1
RCC_PERIPHCLK_I2C1
RCC_PERIPHCLK_I2C2
RCC_PERIPHCLK_RTC
RCC_PERIPHCLK_USB
RCC_PERIPHCLK_LPTIM1
RCC_PERIPHCLK_LCD
RCC_PERIPHCLK_I2C3
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RCCEx RNG Clock Source
RCC_RNGCLKSOURCE_HSI48
RCC_RNGCLKSOURCE_PLLCLK
RCCEx StopWakeUp Clock
RCC_STOP_WAKEUPCLOCK_MSI
RCC_STOP_WAKEUPCLOCK_HSI
RCCEx TIM Prescaler Selection
RCC_TIMPRES_DESACTIVATED
RCC_TIMPRES_ACTIVATED
RCCEx USART1 Clock Source
RCC_USART1CLKSOURCE_PCLK2
RCC_USART1CLKSOURCE_SYSCLK
RCC_USART1CLKSOURCE_HSI
RCC_USART1CLKSOURCE_LSE
RCCEx USART2 Clock Source
RCC_USART2CLKSOURCE_PCLK1
RCC_USART2CLKSOURCE_SYSCLK
RCC_USART2CLKSOURCE_HSI
RCC_USART2CLKSOURCE_LSE
RCCEx USB Clock Source
RCC_USBCLKSOURCE_HSI48
RCC_USBCLKSOURCE_PLL
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38 HAL RNG Generic Driver
38.1 RNG Firmware driver registers structures
38.1.1 RNG_HandleTypeDef
Data Fields
RNG_TypeDef * Instance
HAL_LockTypeDef Lock
__IO HAL_RNG_StateTypeDef State
uint32_t RandomNumber
Field Documentation
RNG_TypeDef* RNG_HandleTypeDef::Instance
Register base address
HAL_LockTypeDef RNG_HandleTypeDef::Lock
RNG locking object
__IO HAL_RNG_StateTypeDef RNG_HandleTypeDef::State
RNG communication state
uint32_t RNG_HandleTypeDef::RandomNumber
Last Generated RNG Data
38.2 RNG Firmware driver API description
38.2.1 How to use this driver
The RNG HAL driver can be used as follows:
1. Enable the RNG controller clock using __HAL_RCC_RNG_CLK_ENABLE() macro. in
HAL_RNG_MspInit().
2. Activate the RNG peripheral using HAL_RNG_Init() function.
3. Wait until the 32 bit Random Number Generator contains a valid random data using
(polling/interrupt) mode.
4. Get the 32 bit random number using HAL_RNG_GenerateRandomNumber() function.
38.2.2 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize the RNG according to the specified parameters in the RNG_InitTypeDef and
create the associated handle
DeInitialize the RNG peripheral
Initialize the RNG MSP
DeInitialize RNG MSP
This section contains the following APIs:
HAL_RNG_Init()
HAL_RNG_DeInit()
HAL_RNG_MspInit()
HAL_RNG_MspDeInit()
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38.2.3 Peripheral Control functions
This section provides functions allowing to:
Get the 32 bit Random number
Get the 32 bit Random number with interrupt enabled
Handle RNG interrupt request
This section contains the following APIs:
HAL_RNG_GenerateRandomNumber()
HAL_RNG_GenerateRandomNumber_IT()
HAL_RNG_IRQHandler()
HAL_RNG_GetRandomNumber()
HAL_RNG_GetRandomNumber_IT()
HAL_RNG_ReadLastRandomNumber()
HAL_RNG_ReadyDataCallback()
HAL_RNG_ErrorCallback()
38.2.4 Peripheral State functions
This subsection permits to get in run-time the status of the peripheral.
This section contains the following APIs:
HAL_RNG_GetState()
38.2.5 Detailed description of functions
HAL_RNG_Init
Function name
HAL_StatusTypeDef HAL_RNG_Init (RNG_HandleTypeDef *
hrng)
Function description
Initializes the RNG peripheral and creates the associated handle.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
HAL: status
HAL_RNG_DeInit
Function name
HAL_StatusTypeDef HAL_RNG_DeInit (RNG_HandleTypeDef *
hrng)
Function description
DeInitializes the RNG peripheral.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
HAL: status
HAL_RNG_MspInit
Function name
void HAL_RNG_MspInit (RNG_HandleTypeDef * hrng)
Function description
Initializes the RNG MSP.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
None
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HAL_RNG_MspDeInit
Function name
void HAL_RNG_MspDeInit (RNG_HandleTypeDef * hrng)
Function description
DeInitializes the RNG MSP.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
None
HAL_RNG_GetRandomNumber
Function name
uint32_t HAL_RNG_GetRandomNumber (RNG_HandleTypeDef
* hrng)
Function description
return generated random number in polling mode (Obsolete).
Parameters
hrng: pointer to a RNG_HandleTypeDef structure that
contains the configuration information for RNG.
Return values
random: value
HAL_RNG_GetRandomNumber_IT
Function name
uint32_t HAL_RNG_GetRandomNumber_IT
(RNG_HandleTypeDef * hrng)
Function description
Returns a 32-bit random number with interrupt enabled (Obsolete),
Use HAL_RNG_GenerateRandomNumber_IT() API instead.
Parameters
hrng: RNG handle
Return values
32-bit: random number
HAL_RNG_GenerateRandomNumber
Function name
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber
(RNG_HandleTypeDef * hrng, uint32_t * random32bit)
Function description
Generates a 32-bit random number.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
random32bit: pointer to generated random number variable
if successful.
Return values
HAL: status
Notes
Each time the random number data is read the
RNG_FLAG_DRDY flag is automatically cleared.
HAL_RNG_GenerateRandomNumber_IT
Function name
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT
(RNG_HandleTypeDef * hrng)
Function description
Generates a 32-bit random number in interrupt mode.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
HAL: status
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HAL_RNG_ReadLastRandomNumber
Function name
uint32_t HAL_RNG_ReadLastRandomNumber
(RNG_HandleTypeDef * hrng)
Function description
Read latest generated random number.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
random: value
HAL_RNG_IRQHandler
Function name
void HAL_RNG_IRQHandler (RNG_HandleTypeDef * hrng)
Function description
Handles RNG interrupt request.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
None
Notes
In the case of a clock error, the RNG is no more able to
generate random numbers because the PLL48CLK clock is
not correct. User has to check that the clock controller is
correctly configured to provide the RNG clock and clear the
CEIS bit using __HAL_RNG_CLEAR_IT(). The clock error
has no impact on the previously generated random numbers,
and the RNG_DR register contents can be used.
In the case of a seed error, the generation of random
numbers is interrupted as long as the SECS bit is '1'. If a
number is available in the RNG_DR register, it must not be
used because it may not have enough entropy. In this case, it
is recommended to clear the SEIS bit using
__HAL_RNG_CLEAR_IT(), then disable and enable the RNG
peripheral to reinitialize and restart the RNG.
User-written HAL_RNG_ErrorCallback() API is called once
whether SEIS or CEIS are set.
HAL_RNG_ErrorCallback
Function name
void HAL_RNG_ErrorCallback (RNG_HandleTypeDef * hrng)
Function description
RNG error callbacks.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
None
HAL_RNG_ReadyDataCallback
Function name
void HAL_RNG_ReadyDataCallback (RNG_HandleTypeDef *
hrng, uint32_t random32bit)
Function description
Data Ready callback in non-blocking mode.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure..
random32bit: generated random value
Return values
None
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HAL_RNG_GetState
Function name
HAL_RNG_StateTypeDef HAL_RNG_GetState
(RNG_HandleTypeDef * hrng)
Function description
Returns the RNG state.
Parameters
hrng: pointer to a RNG_HandleTypeDef structure.
Return values
HAL: state
38.3 RNG Firmware driver defines
38.3.1 RNG
RNG Interrupt definition
RNG_IT_DRDY
Data ready interrupt
RNG_IT_CEI
Clock error interrupt
RNG_IT_SEI
Seed error interrupt
RNG Flag definition
RNG_FLAG_DRDY
Data ready
RNG_FLAG_CECS
Clock error current status
RNG_FLAG_SECS
Seed error current status
RNG Exported Macros
__HAL_RNG_RESET_HANDLE_STATE
Description:
Reset RNG handle state.
Parameters:
__HANDLE__: RNG Handle
Return value:
None
__HAL_RNG_ENABLE
Description:
Enables the RNG peripheral.
Parameters:
__HANDLE__: RNG Handle
Return value:
None
__HAL_RNG_DISABLE
Description:
Disables the RNG peripheral.
Parameters:
__HANDLE__: RNG Handle
Return value:
None
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__HAL_RNG_GET_FLAG
Description:
Check the selected RNG flag status.
Parameters:
__HANDLE__: RNG Handle
__FLAG__: RNG flag This parameter can
be one of the following values:
RNG_FLAG_DRDY: Data ready
RNG_FLAG_CECS: Clock error
current status
RNG_FLAG_SECS: Seed error
current status
Return value:
The: new state of __FLAG__ (SET or
RESET).
__HAL_RNG_CLEAR_FLAG
Description:
Clears the selected RNG flag status.
Parameters:
__HANDLE__: RNG handle
__FLAG__: RNG flag to clear
Return value:
None
Notes:
WARNING: This is a dummy macro for
HAL code alignment, flags
RNG_FLAG_DRDY, RNG_FLAG_CECS
and RNG_FLAG_SECS are read-only.
__HAL_RNG_ENABLE_IT
Description:
Enables the RNG interrupts.
Parameters:
__HANDLE__: RNG Handle
Return value:
None
__HAL_RNG_DISABLE_IT
Description:
Disables the RNG interrupts.
Parameters:
__HANDLE__: RNG Handle
Return value:
None
__HAL_RNG_GET_IT
Description:
Checks whether the specified RNG
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interrupt has occurred or not.
Parameters:
__HANDLE__: RNG Handle
__INTERRUPT__: specifies the RNG
interrupt status flag to check. This
parameter can be one of the following
values:
RNG_IT_DRDY: Data ready interrupt
RNG_IT_CEI: Clock error interrupt
RNG_IT_SEI: Seed error interrupt
Return value:
The: new state of __INTERRUPT__ (SET
or RESET).
__HAL_RNG_CLEAR_IT
Description:
Clears the RNG interrupt status flags.
Parameters:
__HANDLE__: RNG Handle
__INTERRUPT__: specifies the RNG
interrupt status flag to clear. This
parameter can be one of the following
values:
RNG_IT_CEI: Clock error interrupt
RNG_IT_SEI: Seed error interrupt
Return value:
None
Notes:
RNG_IT_DRDY flag is read-only, reading
RNG_DR register automatically clears
RNG_IT_DRDY.
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39 HAL RTC Generic Driver
39.1 RTC Firmware driver registers structures
39.1.1 RTC_InitTypeDef
Data Fields
uint32_t HourFormat
uint32_t AsynchPrediv
uint32_t SynchPrediv
uint32_t OutPut
uint32_t OutPutRemap
uint32_t OutPutPolarity
uint32_t OutPutType
Field Documentation
uint32_t RTC_InitTypeDef::HourFormat
Specifies the RTC Hour Format. This parameter can be a value of
RTC_Hour_Formats
uint32_t RTC_InitTypeDef::AsynchPrediv
Specifies the RTC Asynchronous Predivider value. This parameter must be a number
between Min_Data = 0x00 and Max_Data = 0x7F
uint32_t RTC_InitTypeDef::SynchPrediv
Specifies the RTC Synchronous Predivider value. This parameter must be a number
between Min_Data = 0x00 and Max_Data = 0x7FFF
uint32_t RTC_InitTypeDef::OutPut
Specifies which signal will be routed to the RTC output. This parameter can be a value
of RTCEx_Output_selection_Definitions
uint32_t RTC_InitTypeDef::OutPutRemap
Specifies the remap for RTC output. This parameter can be a value of
RTC_Output_ALARM_OUT_Remap
uint32_t RTC_InitTypeDef::OutPutPolarity
Specifies the polarity of the output signal. This parameter can be a value of
RTC_Output_Polarity_Definitions
uint32_t RTC_InitTypeDef::OutPutType
Specifies the RTC Output Pin mode. This parameter can be a value of
RTC_Output_Type_ALARM_OUT
39.1.2 RTC_TimeTypeDef
Data Fields
uint8_t Hours
uint8_t Minutes
uint8_t Seconds
uint8_t TimeFormat
uint32_t SubSeconds
uint32_t SecondFraction
uint32_t DayLightSaving
uint32_t StoreOperation
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Field Documentation
uint8_t RTC_TimeTypeDef::Hours
Specifies the RTC Time Hour. This parameter must be a number between Min_Data =
0 and Max_Data = 12 if the RTC_HourFormat_12 is selected. This parameter must be
a number between Min_Data = 0 and Max_Data = 23 if the RTC_HourFormat_24 is
selected
uint8_t RTC_TimeTypeDef::Minutes
Specifies the RTC Time Minutes. This parameter must be a number between
Min_Data = 0 and Max_Data = 59
uint8_t RTC_TimeTypeDef::Seconds
Specifies the RTC Time Seconds. This parameter must be a number between
Min_Data = 0 and Max_Data = 59
uint8_t RTC_TimeTypeDef::TimeFormat
Specifies the RTC AM/PM Time. This parameter can be a value of
RTC_AM_PM_Definitions
uint32_t RTC_TimeTypeDef::SubSeconds
Specifies the RTC_SSR RTC Sub Second register content. This parameter
corresponds to a time unit range between [0-1] Second with [1 Sec / SecondFraction
+1] granularity
uint32_t RTC_TimeTypeDef::SecondFraction
Specifies the range or granularity of Sub Second register content corresponding to
Synchronous pre-scaler factor value (PREDIV_S) This parameter corresponds to a
time unit range between [0-1] Second with [1 Sec / SecondFraction +1] granularity.
This field will be used only by HAL_RTC_GetTime function
uint32_t RTC_TimeTypeDef::DayLightSaving
Specifies RTC_DayLightSaveOperation: the value of hour adjustment. This parameter
can be a value of RTC_DayLightSaving_Definitions
uint32_t RTC_TimeTypeDef::StoreOperation
Specifies RTC_StoreOperation value to be written in the BCK bit in CR register to
store the operation. This parameter can be a value of
RTC_StoreOperation_Definitions
39.1.3 RTC_DateTypeDef
Data Fields
uint8_t WeekDay
uint8_t Month
uint8_t Date
uint8_t Year
Field Documentation
uint8_t RTC_DateTypeDef::WeekDay
Specifies the RTC Date WeekDay. This parameter can be a value of
RTC_WeekDay_Definitions
uint8_t RTC_DateTypeDef::Month
Specifies the RTC Date Month (in BCD format). This parameter can be a value of
RTC_Month_Date_Definitions
uint8_t RTC_DateTypeDef::Date
Specifies the RTC Date. This parameter must be a number between Min_Data = 1
and Max_Data = 31
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uint8_t RTC_DateTypeDef::Year
Specifies the RTC Date Year. This parameter must be a number between Min_Data =
0 and Max_Data = 99
39.1.4 RTC_AlarmTypeDef
Data Fields
RTC_TimeTypeDef AlarmTime
uint32_t AlarmMask
uint32_t AlarmSubSecondMask
uint32_t AlarmDateWeekDaySel
uint8_t AlarmDateWeekDay
uint32_t Alarm
Field Documentation
RTC_TimeTypeDef RTC_AlarmTypeDef::AlarmTime
Specifies the RTC Alarm Time members
uint32_t RTC_AlarmTypeDef::AlarmMask
Specifies the RTC Alarm Masks. This parameter can be a value of
RTC_AlarmMask_Definitions
uint32_t RTC_AlarmTypeDef::AlarmSubSecondMask
Specifies the RTC Alarm SubSeconds Masks. This parameter can be a value of
RTC_Alarm_Sub_Seconds_Masks_Definitions
uint32_t RTC_AlarmTypeDef::AlarmDateWeekDaySel
Specifies the RTC Alarm is on Date or WeekDay. This parameter can be a value of
RTC_AlarmDateWeekDay_Definitions
uint8_t RTC_AlarmTypeDef::AlarmDateWeekDay
Specifies the RTC Alarm Date/WeekDay. If the Alarm Date is selected, this parameter
must be set to a value in the 1-31 range. If the Alarm WeekDay is selected, this
parameter can be a value of RTC_WeekDay_Definitions
uint32_t RTC_AlarmTypeDef::Alarm
Specifies the alarm . This parameter can be a value of RTC_Alarms_Definitions
39.1.5 RTC_HandleTypeDef
Data Fields
RTC_TypeDef * Instance
RTC_InitTypeDef Init
HAL_LockTypeDef Lock
__IO HAL_RTCStateTypeDef State
Field Documentation
RTC_TypeDef* RTC_HandleTypeDef::Instance
Register base address
RTC_InitTypeDef RTC_HandleTypeDef::Init
RTC required parameters
HAL_LockTypeDef RTC_HandleTypeDef::Lock
RTC locking object
__IO HAL_RTCStateTypeDef RTC_HandleTypeDef::State
Time communication state
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39.2 RTC Firmware driver API description
39.2.1 Backup Domain Operating Condition
As long as the supply voltage remains in the operating range, the RTC never stops,
regardless of the device status (Run mode, low power modes or under reset).
39.2.2 Backup Domain Reset
The backup domain reset sets all RTC registers and the RCC_CSR register to their reset
values.
A backup domain reset is generated when one of the following events occurs:
Software reset, triggered by setting the RTCRST bit in the RCC Control Status register
(RCC_CSR).
Power reset (BOR/POR/PDR).
39.2.3 Backup Domain Access
After reset, the backup domain (RTC registers and RTC backup data registers) is
protected against possible unwanted write accesses.
To enable access to the RTC Domain and RTC registers, proceed as follows:
Enable the Power Controller (PWR) APB1 interface clock using the
__HAL_RCC_PWR_CLK_ENABLE() function.
Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
Select the RTC clock source using the __HAL_RCC_RTC_CONFIG() function.
Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() function.
39.2.4 How to use RTC Driver
Enable the RTC domain access (see description in the section above).
Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour format
using the HAL_RTC_Init() function.
Time and Date configuration
To configure the RTC Calendar (Time and Date) use the HAL_RTC_SetTime() and
HAL_RTC_SetDate() functions.
To read the RTC Calendar, use the HAL_RTC_GetTime() and HAL_RTC_GetDate()
functions.
Alarm configuration
To configure the RTC Alarm use the HAL_RTC_SetAlarm() function. You can also
configure the RTC Alarm with interrupt mode using the HAL_RTC_SetAlarm_IT()
function.
To read the RTC Alarm, use the HAL_RTC_GetAlarm() function.
39.2.5 RTC and low power modes
The MCU can be woken up from a low power mode by an RTC alternate function.
The RTC alternate functions are the RTC alarms (Alarm A and Alarm B), RTC wakeup,
RTC tamper event detection and RTC time stamp event detection. These RTC alternate
functions can wake up the system from the Stop and Standby low power modes.
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The system can also wake up from low power modes without depending on an external
interrupt (Auto-wakeup mode), by using the RTC alarm or the RTC wakeup events.
The RTC provides a programmable timebase for waking up from the Stop or Standby
mode at regular intervals. Wakeup from STOP and STANDBY modes is possible only
when the RTC clock source is LSE or LSI.
39.2.6 Initialization and de-initialization functions
This section provides functions allowing to initialize and configure the RTC Prescaler
(Synchronous and Asynchronous), RTC Hour format, disable RTC registers Write
protection, enter and exit the RTC initialization mode, RTC registers synchronization check
and reference clock detection enable.
1. The RTC Prescaler is programmed to generate the RTC 1Hz timebase. It is split into 2
programmable prescalers to minimize power consumption.
A 7-bit asynchronous prescaler and a 15-bit synchronous prescaler.
When both prescalers are used, it is recommended to configure the
asynchronous prescaler to a high value to minimize power consumption.
2. All RTC registers are Write protected. Writing to the RTC registers is enabled by
writing a key into the Write Protection register, RTC_WPR.
3. To configure the RTC Calendar, user application should enter initialization mode. In
this mode, the calendar counter is stopped and its value can be updated. When the
initialization sequence is complete, the calendar restarts counting after 4 RTCCLK
cycles.
4. To read the calendar through the shadow registers after Calendar initialization,
calendar update or after wakeup from low power modes the software must first clear
the RSF flag. The software must then wait until it is set again before reading the
calendar, which means that the calendar registers have been correctly copied into the
RTC_TR and RTC_DR shadow registers.The HAL_RTC_WaitForSynchro() function
implements the above software sequence (RSF clear and RSF check).
This section contains the following APIs:
HAL_RTC_Init()
HAL_RTC_DeInit()
HAL_RTC_MspInit()
HAL_RTC_MspDeInit()
39.2.7 RTC Time and Date functions
This section provides functions allowing to configure Time and Date features
This section contains the following APIs:
HAL_RTC_SetTime()
HAL_RTC_GetTime()
HAL_RTC_SetDate()
HAL_RTC_GetDate()
39.2.8 RTC Alarm functions
This section provides functions allowing to configure Alarm feature
This section contains the following APIs:
HAL_RTC_SetAlarm()
HAL_RTC_SetAlarm_IT()
HAL_RTC_DeactivateAlarm()
HAL_RTC_GetAlarm()
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HAL_RTC_AlarmIRQHandler()
HAL_RTC_AlarmAEventCallback()
HAL_RTC_PollForAlarmAEvent()
39.2.9 Peripheral Control functions
This subsection provides functions allowing to
Wait for RTC Time and Date Synchronization
This section contains the following APIs:
HAL_RTC_WaitForSynchro()
39.2.10 Peripheral State functions
This subsection provides functions allowing to
Get RTC state
This section contains the following APIs:
HAL_RTC_GetState()
39.2.11 Detailed description of functions
HAL_RTC_Init
Function name
HAL_StatusTypeDef HAL_RTC_Init (RTC_HandleTypeDef *
hrtc)
Function description
Initialize the RTC peripheral.
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTC_DeInit
Function name
HAL_StatusTypeDef HAL_RTC_DeInit (RTC_HandleTypeDef *
hrtc)
Function description
DeInitialize the RTC peripheral.
Parameters
hrtc: RTC handle
Return values
HAL: status
Notes
This function doesn't reset the RTC Backup Data registers.
HAL_RTC_MspInit
Function name
void HAL_RTC_MspInit (RTC_HandleTypeDef * hrtc)
Function description
Initialize the RTC MSP.
Parameters
hrtc: RTC handle
Return values
None
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HAL_RTC_MspDeInit
Function name
void HAL_RTC_MspDeInit (RTC_HandleTypeDef * hrtc)
Function description
DeInitialize the RTC MSP.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTC_SetTime
Function name
HAL_StatusTypeDef HAL_RTC_SetTime (RTC_HandleTypeDef
* hrtc, RTC_TimeTypeDef * sTime, uint32_t Format)
Function description
Set RTC current time.
Parameters
hrtc: RTC handle
sTime: Pointer to Time structure
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
HAL_RTC_GetTime
Function name
HAL_StatusTypeDef HAL_RTC_GetTime (RTC_HandleTypeDef
* hrtc, RTC_TimeTypeDef * sTime, uint32_t Format)
Function description
Get RTC current time.
Parameters
hrtc: RTC handle
sTime: Pointer to Time structure with Hours, Minutes and
Seconds fields returned with input format (BIN or BCD), also
SubSeconds field returning the RTC_SSR register content
and SecondFraction field the Synchronous pre-scaler factor to
be used for second fraction ratio computation.
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
Notes
You can use SubSeconds and SecondFraction (sTime
structure fields returned) to convert SubSeconds value in
second fraction ratio with time unit following generic formula:
Second fraction ratio * time_unit= [(SecondFraction-
SubSeconds)/(SecondFraction+1)] * time_unit This
conversion can be performed only if no shift operation is
pending (ie. SHFP=0) when PREDIV_S >= SS
You must call HAL_RTC_GetDate() after
HAL_RTC_GetTime() to unlock the values in the higher-order
calendar shadow registers to ensure consistency between the
time and date values. Reading RTC current time locks the
values in calendar shadow registers until Current date is read
to ensure consistency between the time and date values.
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HAL_RTC_SetDate
Function name
HAL_StatusTypeDef HAL_RTC_SetDate (RTC_HandleTypeDef
* hrtc, RTC_DateTypeDef * sDate, uint32_t Format)
Function description
Set RTC current date.
Parameters
hrtc: RTC handle
sDate: Pointer to date structure
Format: specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
HAL_RTC_GetDate
Function name
HAL_StatusTypeDef HAL_RTC_GetDate (RTC_HandleTypeDef
* hrtc, RTC_DateTypeDef * sDate, uint32_t Format)
Function description
Get RTC current date.
Parameters
hrtc: RTC handle
sDate: Pointer to Date structure
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
Notes
You must call HAL_RTC_GetDate() after
HAL_RTC_GetTime() to unlock the values in the higher-order
calendar shadow registers to ensure consistency between the
time and date values. Reading RTC current time locks the
values in calendar shadow registers until Current date is read.
HAL_RTC_SetAlarm
Function name
HAL_StatusTypeDef HAL_RTC_SetAlarm
(RTC_HandleTypeDef * hrtc, RTC_AlarmTypeDef * sAlarm,
uint32_t Format)
Function description
Set the specified RTC Alarm.
Parameters
hrtc: RTC handle
sAlarm: Pointer to Alarm structure
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
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HAL_RTC_SetAlarm_IT
Function name
HAL_StatusTypeDef HAL_RTC_SetAlarm_IT
(RTC_HandleTypeDef * hrtc, RTC_AlarmTypeDef * sAlarm,
uint32_t Format)
Function description
Set the specified RTC Alarm with Interrupt.
Parameters
hrtc: RTC handle
sAlarm: Pointer to Alarm structure
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
Notes
The Alarm register can only be written when the
corresponding Alarm is disabled (Use the
HAL_RTC_DeactivateAlarm()).
The HAL_RTC_SetTime() must be called before enabling the
Alarm feature.
HAL_RTC_DeactivateAlarm
Function name
HAL_StatusTypeDef HAL_RTC_DeactivateAlarm
(RTC_HandleTypeDef * hrtc, uint32_t Alarm)
Function description
Deactivate the specified RTC Alarm.
Parameters
hrtc: RTC handle
Alarm: Specifies the Alarm. This parameter can be one of
the following values:
RTC_ALARM_A: AlarmA
RTC_ALARM_B: AlarmB
Return values
HAL: status
HAL_RTC_GetAlarm
Function name
HAL_StatusTypeDef HAL_RTC_GetAlarm
(RTC_HandleTypeDef * hrtc, RTC_AlarmTypeDef * sAlarm,
uint32_t Alarm, uint32_t Format)
Function description
Get the RTC Alarm value and masks.
Parameters
hrtc: RTC handle
sAlarm: Pointer to Date structure
Alarm: Specifies the Alarm. This parameter can be one of
the following values:
RTC_ALARM_A: AlarmA
RTC_ALARM_B: AlarmB
Format: Specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
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Return values
HAL: status
HAL_RTC_AlarmIRQHandler
Function name
void HAL_RTC_AlarmIRQHandler (RTC_HandleTypeDef * hrtc)
Function description
Handle Alarm interrupt request.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTC_PollForAlarmAEvent
Function name
HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle AlarmA Polling request.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
HAL_RTC_AlarmAEventCallback
Function name
void HAL_RTC_AlarmAEventCallback (RTC_HandleTypeDef *
hrtc)
Function description
Alarm A callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTC_WaitForSynchro
Function name
HAL_StatusTypeDef HAL_RTC_WaitForSynchro
(RTC_HandleTypeDef * hrtc)
Function description
Wait until the RTC Time and Date registers (RTC_TR and
RTC_DR) are synchronized with RTC APB clock.
Parameters
hrtc: RTC handle
Return values
HAL: status
Notes
The RTC Resynchronization mode is write protected, use the
__HAL_RTC_WRITEPROTECTION_DISABLE() before
calling this function.
To read the calendar through the shadow registers after
Calendar initialization, calendar update or after wakeup from
low power modes the software must first clear the RSF flag.
The software must then wait until it is set again before reading
the calendar, which means that the calendar registers have
been correctly copied into the RTC_TR and RTC_DR shadow
registers.
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HAL_RTC_GetState
Function name
HAL_RTCStateTypeDef HAL_RTC_GetState
(RTC_HandleTypeDef * hrtc)
Function description
Return the RTC handle state.
Parameters
hrtc: RTC handle
Return values
HAL: state
RTC_EnterInitMode
Function name
HAL_StatusTypeDef RTC_EnterInitMode
(RTC_HandleTypeDef * hrtc)
Function description
Enter the RTC Initialization mode.
Parameters
hrtc: RTC handle
Return values
HAL: status
Notes
The RTC Initialization mode is write protected, use the
__HAL_RTC_WRITEPROTECTION_DISABLE() before
calling this function.
RTC_ByteToBcd2
Function name
uint8_t RTC_ByteToBcd2 (uint8_t Value)
Function description
Convert a 2 digit decimal to BCD format.
Parameters
Value: Byte to be converted
Return values
Converted: byte
RTC_Bcd2ToByte
Function name
uint8_t RTC_Bcd2ToByte (uint8_t Value)
Function description
Convert from 2 digit BCD to Binary.
Parameters
Value: BCD value to be converted
Return values
Converted: word
39.3 RTC Firmware driver defines
39.3.1 RTC
RTC AlarmDateWeekDay Definitions
RTC_ALARMDATEWEEKDAYSEL_DATE
RTC_ALARMDATEWEEKDAYSEL_WEEKDAY
RTC AlarmMask Definitions
RTC_ALARMMASK_NONE
RTC_ALARMMASK_DATEWEEKDAY
RTC_ALARMMASK_HOURS
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RTC_ALARMMASK_MINUTES
RTC_ALARMMASK_SECONDS
RTC_ALARMMASK_ALL
RTC Alarms Definitions
RTC_ALARM_A
RTC_ALARM_B
RTC Alarm Sub Seconds Masks Definitions
RTC_ALARMSUBSECONDMASK_ALL
All Alarm SS fields are masked. There is no
comparison on sub seconds for Alarm
RTC_ALARMSUBSECONDMASK_SS14_1
SS[14:1] are don't care in Alarm
comparison. Only SS[0] is compared.
RTC_ALARMSUBSECONDMASK_SS14_2
SS[14:2] are don't care in Alarm
comparison. Only SS[1:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_3
SS[14:3] are don't care in Alarm
comparison. Only SS[2:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_4
SS[14:4] are don't care in Alarm
comparison. Only SS[3:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_5
SS[14:5] are don't care in Alarm
comparison. Only SS[4:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_6
SS[14:6] are don't care in Alarm
comparison. Only SS[5:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_7
SS[14:7] are don't care in Alarm `
comparison. Only SS[6:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_8
SS[14:8] are don't care in Alarm
comparison. Only SS[7:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_9
SS[14:9] are don't care in Alarm
comparison. Only SS[8:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_10
SS[14:10] are don't care in Alarm
comparison. Only SS[9:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_11
SS[14:11] are don't care in Alarm
comparison. Only SS[10:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_12
SS[14:12] are don't care in Alarm
comparison.Only SS[11:0] are compared
RTC_ALARMSUBSECONDMASK_SS14_13
SS[14:13] are don't care in Alarm
comparison. Only SS[12:0] are compared
RTC_ALARMSUBSECONDMASK_SS14
SS[14] is don't care in Alarm
comparison.Only SS[13:0] are compared
RTC_ALARMSUBSECONDMASK_NONE
SS[14:0] are compared and must match to
activate alarm.
RTC AM PM Definitions
RTC_HOURFORMAT12_AM
RTC_HOURFORMAT12_PM
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RTC DayLightSaving Definitions
RTC_DAYLIGHTSAVING_SUB1H
RTC_DAYLIGHTSAVING_ADD1H
RTC_DAYLIGHTSAVING_NONE
RTC Exported Macros
__HAL_RTC_RESET_HANDLE_STATE
Description:
Reset RTC handle state.
Parameters:
__HANDLE__: RTC handle.
Return value:
None
__HAL_RTC_WRITEPROTECTION_DISABLE
Description:
Disable the write protection
for RTC registers.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_WRITEPROTECTION_ENABLE
Description:
Enable the write protection for
RTC registers.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_ALARMA_ENABLE
Description:
Enable the RTC ALARMA
peripheral.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_ALARMA_DISABLE
Description:
Disable the RTC ALARMA
peripheral.
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Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_ALARMB_ENABLE
Description:
Enable the RTC ALARMB
peripheral.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_ALARMB_DISABLE
Description:
Disable the RTC ALARMB
peripheral.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_ALARM_ENABLE_IT
Description:
Enable the RTC Alarm
interrupt.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC Alarm interrupt
sources to be enabled or
disabled. This parameter can
be any combination of the
following values:
RTC_IT_ALRA: Alarm A
interrupt
RTC_IT_ALRB: Alarm B
interrupt
Return value:
None
__HAL_RTC_ALARM_DISABLE_IT
Description:
Disable the RTC Alarm
interrupt.
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Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC Alarm interrupt
sources to be enabled or
disabled. This parameter can
be any combination of the
following values:
RTC_IT_ALRA: Alarm A
interrupt
RTC_IT_ALRB: Alarm B
interrupt
Return value:
None
__HAL_RTC_ALARM_GET_IT
Description:
Check whether the specified
RTC Alarm interrupt has
occurred or not.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC Alarm interrupt
sources to check. This
parameter can be:
RTC_IT_ALRA: Alarm A
interrupt
RTC_IT_ALRB: Alarm B
interrupt
Return value:
None
__HAL_RTC_ALARM_GET_IT_SOURCE
Description:
Check whether the specified
RTC Alarm interrupt has been
enabled or not.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC Alarm interrupt
sources to check. This
parameter can be:
RTC_IT_ALRA: Alarm A
interrupt
RTC_IT_ALRB: Alarm B
interrupt
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Return value:
None
__HAL_RTC_ALARM_GET_FLAG
Description:
Get the selected RTC Alarm's
flag status.
Parameters:
__HANDLE__: specifies the
RTC handle.
__FLAG__: specifies the RTC
Alarm Flag sources to check.
This parameter can be:
RTC_FLAG_ALRAF
RTC_FLAG_ALRBF
RTC_FLAG_ALRAWF
RTC_FLAG_ALRBWF
Return value:
None
__HAL_RTC_ALARM_CLEAR_FLAG
Description:
Clear the RTC Alarm's
pending flags.
Parameters:
__HANDLE__: specifies the
RTC handle.
__FLAG__: specifies the RTC
Alarm Flag sources to clear.
This parameter can be:
RTC_FLAG_ALRAF
RTC_FLAG_ALRBF
Return value:
None
__HAL_RTC_ALARM_EXTI_ENABLE_IT
Description:
Enable interrupt on the RTC
Alarm associated Exti line.
Return value:
None
__HAL_RTC_ALARM_EXTI_DISABLE_IT
Description:
Disable interrupt on the RTC
Alarm associated Exti line.
Return value:
None
__HAL_RTC_ALARM_EXTI_ENABLE_EVENT
Description:
Enable event on the RTC
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Alarm associated Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_DISABLE_EVENT
Description:
Disable event on the RTC
Alarm associated Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_ENABLE_FALLING_ED
GE
Description:
Enable falling edge trigger on
the RTC Alarm associated
Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_DISABLE_FALLING_
EDGE
Description:
Disable falling edge trigger on
the RTC Alarm associated
Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_ENABLE_RISING_EDG
E
Description:
Enable rising edge trigger on
the RTC Alarm associated
Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_DISABLE_RISING_ED
GE
Description:
Disable rising edge trigger on
the RTC Alarm associated
Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_ENABLE_RISING_
FALLING_EDGE
Description:
Enable rising & falling edge
trigger on the RTC Alarm
associated Exti line.
Return value:
None.
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__HAL_RTC_ALARM_EXTI_DISABLE_RISING_
FALLING_EDGE
Description:
Disable rising & falling edge
trigger on the RTC Alarm
associated Exti line.
Return value:
None.
__HAL_RTC_ALARM_EXTI_GET_FLAG
Description:
Check whether the RTC
Alarm associated Exti line
interrupt flag is set or not.
Return value:
Line: Status.
__HAL_RTC_ALARM_EXTI_CLEAR_FLAG
Description:
Clear the RTC Alarm
associated Exti line flag.
Return value:
None.
__HAL_RTC_ALARM_EXTI_GENERATE_SWIT
Description:
Generate a Software interrupt
on RTC Alarm associated Exti
line.
Return value:
None.
RTC Flags Definitions
RTC_FLAG_RECALPF
RTC_FLAG_TAMP2F
RTC_FLAG_TAMP1F
RTC_FLAG_TSOVF
RTC_FLAG_TSF
RTC_FLAG_WUTF
RTC_FLAG_ALRBF
RTC_FLAG_ALRAF
RTC_FLAG_INITF
RTC_FLAG_RSF
RTC_FLAG_INITS
RTC_FLAG_SHPF
RTC_FLAG_WUTWF
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RTC_FLAG_ALRBWF
RTC_FLAG_ALRAWF
RTC Hour Formats
RTC_HOURFORMAT_24
RTC_HOURFORMAT_12
RTC Input Parameter Format Definitions
RTC_FORMAT_BIN
RTC_FORMAT_BCD
RTC Interrupts Definitions
RTC_IT_TS
Enable Timestamp Interrupt
RTC_IT_WUT
Enable Wakeup timer Interrupt
RTC_IT_ALRA
Enable Alarm A Interrupt
RTC_IT_ALRB
Enable Alarm B Interrupt
RTC_IT_TAMP
Enable all Tamper Interrupt
RTC_IT_TAMP1
Enable Tamper 1 Interrupt
RTC_IT_TAMP2
Enable Tamper 2 Interrupt
RTC Private macros to check input parameters
IS_RTC_HOUR_FORMAT
IS_RTC_OUTPUT_POL
IS_RTC_OUTPUT_TYPE
IS_RTC_OUTPUT_REMAP
IS_RTC_HOURFORMAT12
IS_RTC_DAYLIGHT_SAVING
IS_RTC_STORE_OPERATION
IS_RTC_FORMAT
IS_RTC_YEAR
IS_RTC_MONTH
IS_RTC_DATE
IS_RTC_WEEKDAY
IS_RTC_ALARM_DATE_WEEKDAY_DATE
IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY
IS_RTC_ALARM_DATE_WEEKDAY_SEL
IS_RTC_ALARM_MASK
IS_RTC_ALARM
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IS_RTC_ALARM_SUB_SECOND_VALUE
IS_RTC_ALARM_SUB_SECOND_MASK
IS_RTC_ASYNCH_PREDIV
IS_RTC_SYNCH_PREDIV
IS_RTC_HOUR12
IS_RTC_HOUR24
IS_RTC_MINUTES
IS_RTC_SECONDS
RTC Month Date Definitions
RTC_MONTH_JANUARY
RTC_MONTH_FEBRUARY
RTC_MONTH_MARCH
RTC_MONTH_APRIL
RTC_MONTH_MAY
RTC_MONTH_JUNE
RTC_MONTH_JULY
RTC_MONTH_AUGUST
RTC_MONTH_SEPTEMBER
RTC_MONTH_OCTOBER
RTC_MONTH_NOVEMBER
RTC_MONTH_DECEMBER
RTC Output ALARM OUT Remap
RTC_OUTPUT_REMAP_NONE
RTC_OUTPUT_REMAP_POS1
RTC Output Polarity Definitions
RTC_OUTPUT_POLARITY_HIGH
RTC_OUTPUT_POLARITY_LOW
RTC Output Type ALARM OUT
RTC_OUTPUT_TYPE_OPENDRAIN
RTC_OUTPUT_TYPE_PUSHPULL
RTC StoreOperation Definitions
RTC_STOREOPERATION_RESET
RTC_STOREOPERATION_SET
RTC WeekDay Definitions
RTC_WEEKDAY_MONDAY
RTC_WEEKDAY_TUESDAY
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RTC_WEEKDAY_WEDNESDAY
RTC_WEEKDAY_THURSDAY
RTC_WEEKDAY_FRIDAY
RTC_WEEKDAY_SATURDAY
RTC_WEEKDAY_SUNDAY
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40 HAL RTC Extension Driver
40.1 RTCEx Firmware driver registers structures
40.1.1 RTC_TamperTypeDef
Data Fields
uint32_t Tamper
uint32_t Interrupt
uint32_t Trigger
uint32_t NoErase
uint32_t MaskFlag
uint32_t Filter
uint32_t SamplingFrequency
uint32_t PrechargeDuration
uint32_t TamperPullUp
uint32_t TimeStampOnTamperDetection
Field Documentation
uint32_t RTC_TamperTypeDef::Tamper
Specifies the Tamper Pin. This parameter can be a value of
RTCEx_Tamper_Pins_Definitions
uint32_t RTC_TamperTypeDef::Interrupt
Specifies the Tamper Interrupt. This parameter can be a value of
RTCEx_Tamper_Interrupt_Definitions
uint32_t RTC_TamperTypeDef::Trigger
Specifies the Tamper Trigger. This parameter can be a value of
RTCEx_Tamper_Trigger_Definitions
uint32_t RTC_TamperTypeDef::NoErase
Specifies the Tamper no erase mode. This parameter can be a value of
RTCEx_Tamper_EraseBackUp_Definitions
uint32_t RTC_TamperTypeDef::MaskFlag
Specifies the Tamper Flag masking. This parameter can be a value of
RTCEx_Tamper_MaskFlag_Definitions
uint32_t RTC_TamperTypeDef::Filter
Specifies the RTC Filter Tamper. This parameter can be a value of
RTCEx_Tamper_Filter_Definitions
uint32_t RTC_TamperTypeDef::SamplingFrequency
Specifies the sampling frequency. This parameter can be a value of
RTCEx_Tamper_Sampling_Frequencies_Definitions
uint32_t RTC_TamperTypeDef::PrechargeDuration
Specifies the Precharge Duration . This parameter can be a value of
RTCEx_Tamper_Pin_Precharge_Duration_Definitions
uint32_t RTC_TamperTypeDef::TamperPullUp
Specifies the Tamper PullUp . This parameter can be a value of
RTCEx_Tamper_Pull_UP_Definitions
uint32_t RTC_TamperTypeDef::TimeStampOnTamperDetection
Specifies the TimeStampOnTamperDetection. This parameter can be a value of
RTCEx_Tamper_TimeStampOnTamperDetection_Definitions
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40.2 RTCEx Firmware driver API description
40.2.1 RTC TimeStamp and Tamper functions
This section provides functions allowing to configure TimeStamp feature
This section contains the following APIs:
HAL_RTCEx_SetTimeStamp()
HAL_RTCEx_SetTimeStamp_IT()
HAL_RTCEx_DeactivateTimeStamp()
HAL_RTCEx_GetTimeStamp()
HAL_RTCEx_SetTamper()
HAL_RTCEx_SetTamper_IT()
HAL_RTCEx_DeactivateTamper()
HAL_RTCEx_TamperTimeStampIRQHandler()
HAL_RTCEx_TimeStampEventCallback()
HAL_RTCEx_Tamper1EventCallback()
HAL_RTCEx_Tamper2EventCallback()
HAL_RTCEx_Tamper3EventCallback()
HAL_RTCEx_PollForTimeStampEvent()
HAL_RTCEx_PollForTamper1Event()
HAL_RTCEx_PollForTamper2Event()
HAL_RTCEx_PollForTamper3Event()
40.2.2 RTC Wake-up functions
This section provides functions allowing to configure Wake-up feature
This section contains the following APIs:
HAL_RTCEx_SetWakeUpTimer()
HAL_RTCEx_SetWakeUpTimer_IT()
HAL_RTCEx_DeactivateWakeUpTimer()
HAL_RTCEx_GetWakeUpTimer()
HAL_RTCEx_WakeUpTimerIRQHandler()
HAL_RTCEx_WakeUpTimerEventCallback()
HAL_RTCEx_PollForWakeUpTimerEvent()
40.2.3 Extended Peripheral Control functions
This subsection provides functions allowing to
Write a data in a specified RTC Backup data register
Read a data in a specified RTC Backup data register
Set the Coarse calibration parameters.
Deactivate the Coarse calibration parameters
Set the Smooth calibration parameters.
Configure the Synchronization Shift Control Settings.
Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
Deactivate the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
Enable the RTC reference clock detection.
Disable the RTC reference clock detection.
Enable the Bypass Shadow feature.
Disable the Bypass Shadow feature.
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This section contains the following APIs:
HAL_RTCEx_BKUPWrite()
HAL_RTCEx_BKUPRead()
HAL_RTCEx_SetSmoothCalib()
HAL_RTCEx_SetSynchroShift()
HAL_RTCEx_SetCalibrationOutPut()
HAL_RTCEx_DeactivateCalibrationOutPut()
HAL_RTCEx_SetRefClock()
HAL_RTCEx_DeactivateRefClock()
HAL_RTCEx_EnableBypassShadow()
HAL_RTCEx_DisableBypassShadow()
40.2.4 Extended features functions
This section provides functions allowing to:
RTC Alram B callback
RTC Poll for Alarm B request
This section contains the following APIs:
HAL_RTCEx_AlarmBEventCallback()
HAL_RTCEx_PollForAlarmBEvent()
40.2.5 Detailed description of functions
HAL_RTCEx_SetTimeStamp
Function name
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp
(RTC_HandleTypeDef * hrtc, uint32_t TimeStampEdge,
uint32_t RTC_TimeStampPin)
Function description
Set TimeStamp.
Parameters
hrtc: RTC handle
TimeStampEdge: Specifies the pin edge on which the
TimeStamp is activated. This parameter can be one of the
following values:
RTC_TIMESTAMPEDGE_RISING: the Time stamp
event occurs on the rising edge of the related pin.
RTC_TIMESTAMPEDGE_FALLING: the Time stamp
event occurs on the falling edge of the related pin.
RTC_TimeStampPin: specifies the RTC TimeStamp Pin.
This parameter can be one of the following values:
RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as
RTC TimeStamp Pin on STM32L05x/6x/7x/8x and PA2
on STM32L03x/4x/2x/1x.
Return values
HAL: status
Notes
This API must be called before enabling the TimeStamp
feature.
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HAL_RTCEx_SetTimeStamp_IT
Function name
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT
(RTC_HandleTypeDef * hrtc, uint32_t TimeStampEdge,
uint32_t RTC_TimeStampPin)
Function description
Set TimeStamp with Interrupt.
Parameters
hrtc: RTC handle
TimeStampEdge: Specifies the pin edge on which the
TimeStamp is activated. This parameter can be one of the
following values:
RTC_TIMESTAMPEDGE_RISING: the Time stamp
event occurs on the rising edge of the related pin.
RTC_TIMESTAMPEDGE_FALLING: the Time stamp
event occurs on the falling edge of the related pin.
RTC_TimeStampPin: Specifies the RTC TimeStamp Pin.
This parameter can be one of the following values:
RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as
RTC TimeStamp Pin on STM32L05x/6x/7x/8x and PA2
on STM32L03x/4x/2x/1x.
Return values
HAL: status
Notes
This API must be called before enabling the TimeStamp
feature.
HAL_RTCEx_DeactivateTimeStamp
Function name
HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp
(RTC_HandleTypeDef * hrtc)
Function description
Deactivate TimeStamp.
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTCEx_GetTimeStamp
Function name
HAL_StatusTypeDef HAL_RTCEx_GetTimeStamp
(RTC_HandleTypeDef * hrtc, RTC_TimeTypeDef *
sTimeStamp, RTC_DateTypeDef * sTimeStampDate, uint32_t
Format)
Function description
Get the RTC TimeStamp value.
Parameters
hrtc: RTC handle
sTimeStamp: Pointer to Time structure
sTimeStampDate: Pointer to Date structure
Format: specifies the format of the entered parameters. This
parameter can be one of the following values:
RTC_FORMAT_BIN: Binary data format
RTC_FORMAT_BCD: BCD data format
Return values
HAL: status
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HAL_RTCEx_SetTamper
Function name
HAL_StatusTypeDef HAL_RTCEx_SetTamper
(RTC_HandleTypeDef * hrtc, RTC_TamperTypeDef * sTamper)
Function description
Set Tamper.
Parameters
hrtc: RTC handle
sTamper: Pointer to Tamper Structure.
Return values
HAL: status
Notes
By calling this API we disable the tamper interrupt for all
tampers.
HAL_RTCEx_SetTamper_IT
Function name
HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT
(RTC_HandleTypeDef * hrtc, RTC_TamperTypeDef * sTamper)
Function description
Set Tamper with interrupt.
Parameters
hrtc: RTC handle
sTamper: Pointer to RTC Tamper.
Return values
HAL: status
Notes
By calling this API we force the tamper interrupt for all
tampers.
HAL_RTCEx_DeactivateTamper
Function name
HAL_StatusTypeDef HAL_RTCEx_DeactivateTamper
(RTC_HandleTypeDef * hrtc, uint32_t Tamper)
Function description
Deactivate Tamper.
Parameters
hrtc: RTC handle
Tamper: Selected tamper pin. This parameter can be
RTC_Tamper_1 and/or RTC_TAMPER_2 for STM32L05x/6x.
This parameter can be any combination of RTC_TAMPER_1,
RTC_TAMPER_2 and RTC_TAMPER_3 for
STM32L01x/2x/3x/7x/8x.
Return values
HAL: status
HAL_RTCEx_TamperTimeStampIRQHandler
Function name
void HAL_RTCEx_TamperTimeStampIRQHandler
(RTC_HandleTypeDef * hrtc)
Function description
Handle TimeStamp interrupt request.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_Tamper1EventCallback
Function name
void HAL_RTCEx_Tamper1EventCallback
(RTC_HandleTypeDef * hrtc)
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Function description
Tamper 1 callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_Tamper2EventCallback
Function name
void HAL_RTCEx_Tamper2EventCallback
(RTC_HandleTypeDef * hrtc)
Function description
Tamper 2 callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_Tamper3EventCallback
Function name
void HAL_RTCEx_Tamper3EventCallback
(RTC_HandleTypeDef * hrtc)
Function description
Tamper 3 callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_TimeStampEventCallback
Function name
void HAL_RTCEx_TimeStampEventCallback
(RTC_HandleTypeDef * hrtc)
Function description
TimeStamp callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_PollForTimeStampEvent
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForTimeStampEvent
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle TimeStamp polling request.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
HAL_RTCEx_PollForTamper1Event
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForTamper1Event
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle Tamper 1 Polling.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
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Return values
HAL: status
HAL_RTCEx_PollForTamper2Event
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForTamper2Event
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle Tamper 2 Polling.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
HAL_RTCEx_PollForTamper3Event
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForTamper3Event
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle Tamper 3 Polling.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
HAL_RTCEx_SetWakeUpTimer
Function name
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer
(RTC_HandleTypeDef * hrtc, uint32_t WakeUpCounter,
uint32_t WakeUpClock)
Function description
Set wake up timer.
Parameters
hrtc: RTC handle
WakeUpCounter: Wake up counter
WakeUpClock: Wake up clock
Return values
HAL: status
HAL_RTCEx_SetWakeUpTimer_IT
Function name
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer_IT
(RTC_HandleTypeDef * hrtc, uint32_t WakeUpCounter,
uint32_t WakeUpClock)
Function description
Set wake up timer with interrupt.
Parameters
hrtc: RTC handle
WakeUpCounter: Wake up counter
WakeUpClock: Wake up clock
Return values
HAL: status
HAL_RTCEx_DeactivateWakeUpTimer
Function name
uint32_t HAL_RTCEx_DeactivateWakeUpTimer
(RTC_HandleTypeDef * hrtc)
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Function description
Deactivate wake up timer counter.
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTCEx_GetWakeUpTimer
Function name
uint32_t HAL_RTCEx_GetWakeUpTimer (RTC_HandleTypeDef
* hrtc)
Function description
Get wake up timer counter.
Parameters
hrtc: RTC handle
Return values
Counter: value
HAL_RTCEx_WakeUpTimerIRQHandler
Function name
void HAL_RTCEx_WakeUpTimerIRQHandler
(RTC_HandleTypeDef * hrtc)
Function description
Handle Wake Up Timer interrupt request.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_WakeUpTimerEventCallback
Function name
void HAL_RTCEx_WakeUpTimerEventCallback
(RTC_HandleTypeDef * hrtc)
Function description
Wake Up Timer callback.
Parameters
hrtc: RTC handle
Return values
None
HAL_RTCEx_PollForWakeUpTimerEvent
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForWakeUpTimerEvent
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle Wake Up Timer Polling.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
HAL_RTCEx_BKUPWrite
Function name
void HAL_RTCEx_BKUPWrite (RTC_HandleTypeDef * hrtc,
uint32_t BackupRegister, uint32_t Data)
Function description
Write a data in a specified RTC Backup data register.
Parameters
hrtc: RTC handle
BackupRegister: RTC Backup data Register number. This
parameter can be: RTC_BKP_DRx where x can be from 0 to
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Data: Data to be written in the specified RTC Backup data
register.
Return values
None
HAL_RTCEx_BKUPRead
Function name
uint32_t HAL_RTCEx_BKUPRead (RTC_HandleTypeDef * hrtc,
uint32_t BackupRegister)
Function description
Reads data from the specified RTC Backup data Register.
Parameters
hrtc: RTC handle
BackupRegister: RTC Backup data Register number. This
parameter can be: RTC_BKP_DRx where x can be from 0 to
19 to specify the register.
Return values
Read: value
HAL_RTCEx_SetSmoothCalib
Function name
HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib
(RTC_HandleTypeDef * hrtc, uint32_t SmoothCalibPeriod,
uint32_t SmoothCalibPlusPulses, uint32_t
SmoothCalibMinusPulsesValue)
Function description
Set the Smooth calibration parameters.
Parameters
hrtc: RTC handle
SmoothCalibPeriod: Select the Smooth Calibration Period.
This parameter can be can be one of the following values :
RTC_SMOOTHCALIB_PERIOD_32SEC: The smooth
calibration period is 32s.
RTC_SMOOTHCALIB_PERIOD_16SEC: The smooth
calibration period is 16s.
RTC_SMOOTHCALIB_PERIOD_8SEC: The smooth
calibration period is 8s.
SmoothCalibPlusPulses: Select to Set or reset the CALP
bit. This parameter can be one of the following values:
RTC_SMOOTHCALIB_PLUSPULSES_SET: Add one
RTCCLK pulse every 2*11 pulses.
RTC_SMOOTHCALIB_PLUSPULSES_RESET: No
RTCCLK pulses are added.
SmoothCalibMinusPulsesValue: Select the value of
CALM[8:0] bits. This parameter can be one any value from 0
to 0x000001FF.
Return values
HAL: status
Notes
To deactivate the smooth calibration, the field
SmoothCalibPlusPulses must be equal to
SMOOTHCALIB_PLUSPULSES_RESET and the field
SmoothCalibMinusPulsesValue mut be equal to 0.
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HAL_RTCEx_SetSynchroShift
Function name
HAL_StatusTypeDef HAL_RTCEx_SetSynchroShift
(RTC_HandleTypeDef * hrtc, uint32_t ShiftAdd1S, uint32_t
ShiftSubFS)
Function description
Configure the Synchronization Shift Control Settings.
Parameters
hrtc: RTC handle
ShiftAdd1S: Select to add or not 1 second to the time
calendar. This parameter can be one of the following values :
RTC_SHIFTADD1S_SET: Add one second to the clock
calendar.
RTC_SHIFTADD1S_RESET: No effect.
ShiftSubFS: Select the number of Second Fractions to
substitute. This parameter can be one any value from 0 to
0x7FFF.
Return values
HAL: status
Notes
When REFCKON is set, firmware must not write to Shift
control register.
HAL_RTCEx_SetCalibrationOutPut
Function name
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut
(RTC_HandleTypeDef * hrtc, uint32_t CalibOutput)
Function description
Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or
512Hz).
Parameters
hrtc: RTC handle
CalibOutput: : Select the Calibration output Selection . This
parameter can be one of the following values:
RTC_CALIBOUTPUT_512HZ: A signal has a regular
waveform at 512Hz.
RTC_CALIBOUTPUT_1HZ: A signal has a regular
waveform at 1Hz.
Return values
HAL: status
HAL_RTCEx_DeactivateCalibrationOutPut
Function name
HAL_StatusTypeDef
HAL_RTCEx_DeactivateCalibrationOutPut
(RTC_HandleTypeDef * hrtc)
Function description
Deactivate the Calibration Pinout (RTC_CALIB) Selection (1Hz or
512Hz).
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTCEx_SetRefClock
Function name
HAL_StatusTypeDef HAL_RTCEx_SetRefClock
(RTC_HandleTypeDef * hrtc)
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Function description
Enable the RTC reference clock detection.
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTCEx_DeactivateRefClock
Function name
HAL_StatusTypeDef HAL_RTCEx_DeactivateRefClock
(RTC_HandleTypeDef * hrtc)
Function description
Disable the RTC reference clock detection.
Parameters
hrtc: RTC handle
Return values
HAL: status
HAL_RTCEx_EnableBypassShadow
Function name
HAL_StatusTypeDef HAL_RTCEx_EnableBypassShadow
(RTC_HandleTypeDef * hrtc)
Function description
Enable the Bypass Shadow feature.
Parameters
hrtc: RTC handle
Return values
HAL: status
Notes
When the Bypass Shadow is enabled the calendar value are
taken directly from the Calendar counter.
HAL_RTCEx_DisableBypassShadow
Function name
HAL_StatusTypeDef HAL_RTCEx_DisableBypassShadow
(RTC_HandleTypeDef * hrtc)
Function description
Disable the Bypass Shadow feature.
Parameters
hrtc: RTC handle
Return values
HAL: status
Notes
When the Bypass Shadow is enabled the calendar value are
taken directly from the Calendar counter.
HAL_RTCEx_AlarmBEventCallback
Function name
void HAL_RTCEx_AlarmBEventCallback
(RTC_HandleTypeDef * hrtc)
Function description
Alarm B callback.
Parameters
hrtc: RTC handle
Return values
None
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HAL_RTCEx_PollForAlarmBEvent
Function name
HAL_StatusTypeDef HAL_RTCEx_PollForAlarmBEvent
(RTC_HandleTypeDef * hrtc, uint32_t Timeout)
Function description
Handle Alarm B Polling request.
Parameters
hrtc: RTC handle
Timeout: Timeout duration
Return values
HAL: status
40.3 RTCEx Firmware driver defines
40.3.1 RTCEx
RTCEx Add 1 Second Parameter Definitions
RTC_SHIFTADD1S_RESET
RTC_SHIFTADD1S_SET
RTCEx Backup Registers Definition
RTC_BKP_DR0
RTC_BKP_DR1
RTC_BKP_DR2
RTC_BKP_DR3
RTC_BKP_DR4
RTC Calibration
__HAL_RTC_CALIBRATION_OUTPUT_ENABLE
Description:
Enable the RTC calibration
output.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_CALIBRATION_OUTPUT_DISABLE
Description:
Disable the calibration output.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
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__HAL_RTC_CLOCKREF_DETECTION_ENABLE
Description:
Enable the clock reference
detection.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_CLOCKREF_DETECTION_DISABLE
Description:
Disable the clock reference
detection.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_SHIFT_GET_FLAG
Description:
Get the selected RTC shift
operation's flag status.
Parameters:
__HANDLE__: specifies the
RTC handle.
__FLAG__: specifies the RTC
shift operation Flag is pending
or not. This parameter can be:
RTC_FLAG_SHPF
Return value:
None
RTCEx Calib Output selection Definitions
RTC_CALIBOUTPUT_512HZ
RTC_CALIBOUTPUT_1HZ
RTCEx Flags Definitions
RTC_FLAG_TAMP3F
RTCEx Interrupts Definitions
RTC_IT_TAMP3
Private macros to check input parameters
IS_RTC_OUTPUT
IS_RTC_BKP
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IS_TIMESTAMP_EDGE
IS_RTC_TAMPER
IS_RTC_TAMPER_INTERRUPT
IS_RTC_TIMESTAMP_PIN
IS_RTC_TAMPER_TRIGGER
IS_RTC_TAMPER_ERASE_MODE
IS_RTC_TAMPER_MASKFLAG_STATE
IS_RTC_TAMPER_FILTER
IS_RTC_TAMPER_SAMPLING_FREQ
IS_RTC_TAMPER_PRECHARGE_DURATION
IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION
IS_RTC_TAMPER_PULLUP_STATE
IS_RTC_WAKEUP_CLOCK
IS_RTC_WAKEUP_COUNTER
IS_RTC_SMOOTH_CALIB_PERIOD
IS_RTC_SMOOTH_CALIB_PLUS
IS_RTC_SHIFT_ADD1S
IS_RTC_CALIB_OUTPUT
RTCEx Output Selection Definition
RTC_OUTPUT_DISABLE
RTC_OUTPUT_ALARMA
RTC_OUTPUT_ALARMB
RTC_OUTPUT_WAKEUP
RTCEx Smooth calib Minus pulses Definitions
IS_RTC_SMOOTH_CALIB_MINUS
RTCEx Smooth calib period Definitions
RTC_SMOOTHCALIB_PERIOD_32SEC
If RTCCLK = 32768 Hz, Smooth calibation
period is 32s, else 2exp20 RTCCLK pulses
RTC_SMOOTHCALIB_PERIOD_16SEC
If RTCCLK = 32768 Hz, Smooth calibation
period is 16s, else 2exp19 RTCCLK pulses
RTC_SMOOTHCALIB_PERIOD_8SEC
If RTCCLK = 32768 Hz, Smooth calibation
period is 8s, else 2exp18 RTCCLK pulses
RTCEx Smooth calib Plus pulses Definitions
RTC_SMOOTHCALIB_PLUSPULSES_SET
The number of RTCCLK pulses added
during a X -second window = Y -
CALM[8:0] with Y = 512, 256, 128 when
X = 32, 16, 8
RTC_SMOOTHCALIB_PLUSPULSES_RESET
The number of RTCCLK pulses
subbstited during a 32-second window =
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CALM[8:0]
RTCEx Substract Fraction Of Second Value
IS_RTC_SHIFT_SUBFS
RTC Tamper
__HAL_RTC_TAMPER1_ENABLE
Description:
Enable the RTC Tamper1 input
detection.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER1_DISABLE
Description:
Disable the RTC Tamper1 input
detection.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER2_ENABLE
Description:
Enable the RTC Tamper2 input
detection.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER2_DISABLE
Description:
Disable the RTC Tamper2 input
detection.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER3_ENABLE
Description:
Enable the RTC Tamper3 input
detection.
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Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER3_DISABLE
Description:
Disable the RTC Tamper3 input
detection.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TAMPER_ENABLE_IT
Description:
Enable the RTC Tamper interrupt.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the RTC
Tamper interrupt sources to be enabled.
This parameter can be any combination
of the following values:
RTC_IT_TAMP: All tampers
interrupts
RTC_IT_TAMP1: Tamper1
interrupt
RTC_IT_TAMP2: Tamper2
interrupt
RTC_IT_TAMP3: Tamper3
interrupt
Return value:
None
__HAL_RTC_TAMPER_DISABLE_IT
Description:
Disable the RTC Tamper interrupt.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the RTC
Tamper interrupt sources to be
disabled. This parameter can be any
combination of the following values:
RTC_IT_TAMP: All tampers
interrupts
RTC_IT_TAMP1: Tamper1
interrupt
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RTC_IT_TAMP2: Tamper2
interrupt
RTC_IT_TAMP3: Tamper3
interrupt
Return value:
None
__HAL_RTC_TAMPER_GET_IT
Description:
Check whether the specified RTC
Tamper interrupt has occurred or not.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the RTC
Tamper interrupt to check. This
parameter can be:
RTC_IT_TAMP1: Tamper1
interrupt
RTC_IT_TAMP2: Tamper2
interrupt
RTC_IT_TAMP3: Tamper3
interrupt
Return value:
None
__HAL_RTC_TAMPER_GET_IT_SOURCE
Description:
Check whether the specified RTC
Tamper interrupt has been enabled or
not.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the RTC
Tamper interrupt source to check. This
parameter can be:
RTC_IT_TAMP: All tampers
interrupts
RTC_IT_TAMP1: Tamper1
interrupt
RTC_IT_TAMP2: Tamper2
interrupt
RTC_IT_TAMP3: Tamper3
interrupt
Return value:
None
__HAL_RTC_TAMPER_GET_FLAG
Description:
Get the selected RTC Tamper's flag
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status.
Parameters:
__HANDLE__: specifies the RTC
handle.
__FLAG__: specifies the RTC Tamper
Flag is pending or not. This parameter
can be:
RTC_FLAG_TAMP1F: Tamper1
flag
RTC_FLAG_TAMP2F: Tamper2
flag
RTC_FLAG_TAMP3F: Tamper3
flag
Return value:
None
__HAL_RTC_TAMPER_CLEAR_FLAG
Description:
Clear the RTC Tamper's pending flags.
Parameters:
__HANDLE__: specifies the RTC
handle.
__FLAG__: specifies the RTC Tamper
Flag to clear. This parameter can be:
RTC_FLAG_TAMP1F: Tamper1
flag
RTC_FLAG_TAMP2F: Tamper2
flag
RTC_FLAG_TAMP3F: Tamper3
flag
Return value:
None
RTCEx Tamper EraseBackUp Definitions
RTC_TAMPER_ERASE_BACKUP_ENABLE
RTC_TAMPER_ERASE_BACKUP_DISABLE
RTCEx Tamper Filter Definitions
RTC_TAMPERFILTER_DISABLE
Tamper filter is disabled
RTC_TAMPERFILTER_2SAMPLE
Tamper is activated after 2 consecutive samples at
the active level
RTC_TAMPERFILTER_4SAMPLE
Tamper is activated after 4 consecutive samples at
the active level
RTC_TAMPERFILTER_8SAMPLE
Tamper is activated after 8 consecutive samples at
the active leve.
RTCEx Tamper Interrupt Definitions
RTC_TAMPER1_INTERRUPT
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RTC_TAMPER2_INTERRUPT
RTC_TAMPER3_INTERRUPT
RTC_ALL_TAMPER_INTERRUPT
RTCEx Tamper MaskFlag Definitions
RTC_TAMPERMASK_FLAG_DISABLE
RTC_TAMPERMASK_FLAG_ENABLE
RTCEx Tamper Pins Definition
RTC_TAMPER_1
RTC_TAMPER_2
RTC_TAMPER_3
RTCEx Tamper Pin Precharge Duration Definitions
RTC_TAMPERPRECHARGEDURATION_1RTCCLK
Tamper pins are pre-charged
before sampling during 1 RTCCLK
cycle
RTC_TAMPERPRECHARGEDURATION_2RTCCLK
Tamper pins are pre-charged
before sampling during 2 RTCCLK
cycles
RTC_TAMPERPRECHARGEDURATION_4RTCCLK
Tamper pins are pre-charged
before sampling during 4 RTCCLK
cycles
RTC_TAMPERPRECHARGEDURATION_8RTCCLK
Tamper pins are pre-charged
before sampling during 8 RTCCLK
cycles
RTCEx Tamper Pull UP Definitions
RTC_TAMPER_PULLUP_ENABLE
Tamper pins are pre-charged before sampling
RTC_TAMPER_PULLUP_DISABLE
Tamper pins pre-charge is disabled
RTCEx Tamper Sampling Frequencies Definitions
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV32768
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 32768
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV16384
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 16384
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV8192
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 8192
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV4096
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 4096
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV2048
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 2048
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV1024
Each of the tamper inputs are
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sampled with a frequency =
RTCCLK / 1024
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV512
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 512
RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV256
Each of the tamper inputs are
sampled with a frequency =
RTCCLK / 256
EXTI RTC Tamper Timestamp EXTI
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_
IT
Description:
Enable interrupt on the
RTC Tamper and
Timestamp associated Exti
line.
Return value:
None
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_DISABLE_
IT
Description:
Disable interrupt on the
RTC Tamper and
Timestamp associated Exti
line.
Return value:
None
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_
EVENT
Description:
Enable event on the RTC
Tamper and Timestamp
associated Exti line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_DISABLE_
EVENT
Description:
Disable event on the RTC
Tamper and Timestamp
associated Exti line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_
FALLING_EDGE
Description:
Enable falling edge trigger
on the RTC Tamper and
Timestamp associated Exti
line.
Return value:
None.
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__HAL_RTC_TAMPER_TIMESTAMP_EXTI_DISABLE_
FALLING_EDGE
Description:
Disable falling edge trigger
on the RTC Tamper and
Timestamp associated Exti
line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_
RISING_EDGE
Description:
Enable rising edge trigger
on the RTC Tamper and
Timestamp associated Exti
line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_DISABLE_
RISING_EDGE
Description:
Disable rising edge trigger
on the RTC Tamper and
Timestamp associated Exti
line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_
RISING_FALLING_EDGE
Description:
Enable rising & falling edge
trigger on the RTC Tamper
and Timestamp associated
Exti line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_DISABLE_
RISING_FALLING_EDGE
Description:
Disable rising & falling
edge trigger on the RTC
Tamper and Timestamp
associated Exti line.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_GET_
FLAG
Description:
Check whether the RTC
Tamper and Timestamp
associated Exti line
interrupt flag is set or not.
Return value:
Line: Status.
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__HAL_RTC_TAMPER_TIMESTAMP_EXTI_CLEAR_
FLAG
Description:
Clear the RTC Tamper and
Timestamp associated Exti
line flag.
Return value:
None.
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_
GENERATE_SWIT
Description:
Generate a Software
interrupt on the RTC
Tamper and Timestamp
associated Exti line.
Return value:
None.
RTCEx Tamper TimeStampOnTamperDetection Definitions
RTC_TIMESTAMPONTAMPERDETECTION_ENABLE
TimeStamp on Tamper
Detection event saved
RTC_TIMESTAMPONTAMPERDETECTION_DISABLE
TimeStamp on Tamper
Detection event is not saved
RTCEx Tamper Trigger Definitions
RTC_TAMPERTRIGGER_RISINGEDGE
RTC_TAMPERTRIGGER_FALLINGEDGE
RTC_TAMPERTRIGGER_LOWLEVEL
RTC_TAMPERTRIGGER_HIGHLEVEL
RTC Timestamp
__HAL_RTC_TIMESTAMP_ENABLE
Description:
Enable the RTC TimeStamp
peripheral.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
__HAL_RTC_TIMESTAMP_DISABLE
Description:
Disable the RTC TimeStamp
peripheral.
Parameters:
__HANDLE__: specifies the RTC
handle.
Return value:
None
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__HAL_RTC_TIMESTAMP_ENABLE_IT
Description:
Enable the RTC TimeStamp
interrupt.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the
RTC TimeStamp interrupt source to
be enabled. This parameter can be:
RTC_IT_TS: TimeStamp
interrupt
Return value:
None
__HAL_RTC_TIMESTAMP_DISABLE_IT
Description:
Disable the RTC TimeStamp
interrupt.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the
RTC TimeStamp interrupt source to
be disabled. This parameter can be:
RTC_IT_TS: TimeStamp
interrupt
Return value:
None
__HAL_RTC_TIMESTAMP_GET_IT
Description:
Check whether the specified RTC
TimeStamp interrupt has occurred
or not.
Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the
RTC TimeStamp interrupt to check.
This parameter can be:
RTC_IT_TS: TimeStamp
interrupt
Return value:
None
__HAL_RTC_TIMESTAMP_GET_IT_SOURCE
Description:
Check whether the specified RTC
Time Stamp interrupt has been
enabled or not.
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Parameters:
__HANDLE__: specifies the RTC
handle.
__INTERRUPT__: specifies the
RTC Time Stamp interrupt source to
check. This parameter can be:
RTC_IT_TS: TimeStamp
interrupt
Return value:
None
__HAL_RTC_TIMESTAMP_GET_FLAG
Description:
Get the selected RTC TimeStamp's
flag status.
Parameters:
__HANDLE__: specifies the RTC
handle.
__FLAG__: specifies the RTC
TimeStamp Flag is pending or not.
This parameter can be:
RTC_FLAG_TSF
RTC_FLAG_TSOVF
Return value:
None
__HAL_RTC_TIMESTAMP_CLEAR_FLAG
Description:
Clear the RTC Time Stamp's
pending flags.
Parameters:
__HANDLE__: specifies the RTC
handle.
__FLAG__: specifies the RTC Alarm
Flag to clear. This parameter can
be:
RTC_FLAG_TSF
Return value:
None
RTCEx TimeStamp Pin Selection
RTC_TIMESTAMPPIN_DEFAULT
RTCEx Time Stamp Edges definition
RTC_TIMESTAMPEDGE_RISING
RTC_TIMESTAMPEDGE_FALLING
RTC WakeUp Timer
__HAL_RTC_WAKEUPTIMER_ENABLE
Description:
Enable the RTC WakeUp
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Timer peripheral.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_WAKEUPTIMER_DISABLE
Description:
Disable the RTC WakeUp
Timer peripheral.
Parameters:
__HANDLE__: specifies the
RTC handle.
Return value:
None
__HAL_RTC_WAKEUPTIMER_ENABLE_IT
Description:
Enable the RTC
WakeUpTimer interrupt.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC WakeUpTimer
interrupt sources to be
enabled. This parameter can
be:
RTC_IT_WUT:
WakeUpTimer interrupt
Return value:
None
__HAL_RTC_WAKEUPTIMER_DISABLE_IT
Description:
Disable the RTC
WakeUpTimer interrupt.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC WakeUpTimer
interrupt sources to be
disabled. This parameter can
be:
RTC_IT_WUT:
WakeUpTimer interrupt
Return value:
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None
__HAL_RTC_WAKEUPTIMER_GET_IT
Description:
Check whether the specified
RTC WakeUpTimer interrupt
has occurred or not.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC WakeUpTimer
interrupt to check. This
parameter can be:
RTC_IT_WUT:
WakeUpTimer interrupt
Return value:
None
__HAL_RTC_WAKEUPTIMER_GET_IT_SOURCE
Description:
Check whether the specified
RTC Wake Up timer interrupt
has been enabled or not.
Parameters:
__HANDLE__: specifies the
RTC handle.
__INTERRUPT__: specifies
the RTC Wake Up timer
interrupt sources to check.
This parameter can be:
RTC_IT_WUT:
WakeUpTimer interrupt
Return value:
None
__HAL_RTC_WAKEUPTIMER_GET_FLAG
Description:
Get the selected RTC
WakeUpTimer's flag status.
Parameters:
__HANDLE__: specifies the
RTC handle.
__FLAG__: specifies the RTC
WakeUpTimer Flag is pending
or not. This parameter can be:
RTC_FLAG_WUTF
RTC_FLAG_WUTWF
Return value:
None
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__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG
Description:
Clear the RTC Wake Up
timer's pending flags.
Parameters:
__HANDLE__: specifies the
RTC handle.
__FLAG__: specifies the RTC
WakeUpTimer Flag to clear.
This parameter can be:
RTC_FLAG_WUTF
Return value:
None
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_IT
Description:
Enable interrupt on the RTC
WakeUp Timer associated
Exti line.
Return value:
None
__HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_IT
Description:
Disable interrupt on the RTC
WakeUp Timer associated
Exti line.
Return value:
None
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_
EVENT
Description:
Enable event on the RTC
WakeUp Timer associated
Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_
EVENT
Description:
Disable event on the RTC
WakeUp Timer associated
Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_
FALLING_EDGE
Description:
Enable falling edge trigger on
the RTC WakeUp Timer
associated Exti line.
Return value:
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None.
__HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_
FALLING_EDGE
Description:
Disable falling edge trigger on
the RTC WakeUp Timer
associated Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_
RISING_EDGE
Description:
Enable rising edge trigger on
the RTC WakeUp Timer
associated Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_
RISING_EDGE
Description:
Disable rising edge trigger on
the RTC WakeUp Timer
associated Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_
RISING_FALLING_EDGE
Description:
Enable rising & falling edge
trigger on the RTC WakeUp
Timer associated Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_
RISING_FALLING_EDGE
Description:
Disable rising & falling edge
trigger on the RTC WakeUp
Timer associated Exti line.
Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_GET_FLAG
Description:
Check whether the RTC
WakeUp Timer associated
Exti line interrupt flag is set or
not.
Return value:
Line: Status.
__HAL_RTC_WAKEUPTIMER_EXTI_CLEAR_FLAG
Description:
Clear the RTC WakeUp Timer
associated Exti line flag.
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Return value:
None.
__HAL_RTC_WAKEUPTIMER_EXTI_GENERATE_
SWIT
Description:
Generate a Software interrupt
on the RTC WakeUp Timer
associated Exti line.
Return value:
None.
RTCEx Wakeup Timer Definitions
RTC_WAKEUPCLOCK_RTCCLK_DIV16
RTC_WAKEUPCLOCK_RTCCLK_DIV8
RTC_WAKEUPCLOCK_RTCCLK_DIV4
RTC_WAKEUPCLOCK_RTCCLK_DIV2
RTC_WAKEUPCLOCK_CK_SPRE_16BITS
RTC_WAKEUPCLOCK_CK_SPRE_17BITS
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41 HAL SMARTCARD Generic Driver
41.1 SMARTCARD Firmware driver registers structures
41.1.1 SMARTCARD_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t WordLength
uint32_t StopBits
uint16_t Parity
uint16_t Mode
uint16_t CLKPolarity
uint16_t CLKPhase
uint16_t CLKLastBit
uint16_t OneBitSampling
uint8_t Prescaler
uint8_t GuardTime
uint16_t NACKEnable
uint32_t TimeOutEnable
uint32_t TimeOutValue
uint8_t BlockLength
uint8_t AutoRetryCount
Field Documentation
uint32_t SMARTCARD_InitTypeDef::BaudRate
Configures the SmartCard communication baud rate. The baud rate register is
computed using the following formula: Baud Rate Register = ((PCLKx) / ((hsmartcard-
>Init.BaudRate)))
uint32_t SMARTCARD_InitTypeDef::WordLength
Specifies the number of data bits transmitted or received in a frame. This parameter
SMARTCARD_Word_Length can only be set to 9 (8 data + 1 parity bits).
uint32_t SMARTCARD_InitTypeDef::StopBits
Specifies the number of stop bits. This parameter can be a value of
SMARTCARD_Stop_Bits.
uint16_t SMARTCARD_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of SMARTCARD_Parity
Note:The parity is enabled by default (PCE is forced to 1). Since the WordLength is
forced to 8 bits + parity, M is forced to 1 and the parity bit is the 9th bit.
uint16_t SMARTCARD_InitTypeDef::Mode
Specifies whether the Receive or Transmit mode is enabled or disabled. This
parameter can be a value of SMARTCARD_Mode
uint16_t SMARTCARD_InitTypeDef::CLKPolarity
Specifies the steady state of the serial clock. This parameter can be a value of
SMARTCARD_Clock_Polarity
uint16_t SMARTCARD_InitTypeDef::CLKPhase
Specifies the clock transition on which the bit capture is made. This parameter can be
a value of SMARTCARD_Clock_Phase
uint16_t SMARTCARD_InitTypeDef::CLKLastBit
Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB)
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has to be output on the SCLK pin in synchronous mode. This parameter can be a
value of SMARTCARD_Last_Bit
uint16_t SMARTCARD_InitTypeDef::OneBitSampling
Specifies whether a single sample or three samples' majority vote is selected.
Selecting the single sample method increases the receiver tolerance to clock
deviations. This parameter can be a value of SMARTCARD_OneBit_Sampling.
uint8_t SMARTCARD_InitTypeDef::Prescaler
Specifies the SmartCard Prescaler.
uint8_t SMARTCARD_InitTypeDef::GuardTime
Specifies the SmartCard Guard Time applied after stop bits.
uint16_t SMARTCARD_InitTypeDef::NACKEnable
Specifies whether the SmartCard NACK transmission is enabled in case of parity
error. This parameter can be a value of SMARTCARD_NACK_Enable
uint32_t SMARTCARD_InitTypeDef::TimeOutEnable
Specifies whether the receiver timeout is enabled. This parameter can be a value of
SMARTCARD_Timeout_Enable
uint32_t SMARTCARD_InitTypeDef::TimeOutValue
Specifies the receiver time out value in number of baud blocks: it is used to implement
the Character Wait Time (CWT) and Block Wait Time (BWT). It is coded over 24 bits.
uint8_t SMARTCARD_InitTypeDef::BlockLength
Specifies the SmartCard Block Length in T=1 Reception mode. This parameter can be
any value from 0x0 to 0xFF
uint8_t SMARTCARD_InitTypeDef::AutoRetryCount
Specifies the SmartCard auto-retry count (number of retries in receive and transmit
mode). When set to 0, retransmission is disabled. Otherwise, its maximum value is 7
(before signalling an error)
41.1.2 SMARTCARD_AdvFeatureInitTypeDef
Data Fields
uint32_t AdvFeatureInit
uint32_t TxPinLevelInvert
uint32_t RxPinLevelInvert
uint32_t DataInvert
uint32_t Swap
uint32_t OverrunDisable
uint32_t DMADisableonRxError
uint32_t MSBFirst
Field Documentation
uint32_t SMARTCARD_AdvFeatureInitTypeDef::AdvFeatureInit
Specifies which advanced SMARTCARD features is initialized. Several advanced
features may be initialized at the same time. This parameter can be a value of
SMARTCARD_Advanced_Features_Initialization_Type
uint32_t SMARTCARD_AdvFeatureInitTypeDef::TxPinLevelInvert
Specifies whether the TX pin active level is inverted. This parameter can be a value of
SMARTCARD_Tx_Inv
uint32_t SMARTCARD_AdvFeatureInitTypeDef::RxPinLevelInvert
Specifies whether the RX pin active level is inverted. This parameter can be a value of
SMARTCARD_Rx_Inv
uint32_t SMARTCARD_AdvFeatureInitTypeDef::DataInvert
Specifies whether data are inverted (positive/direct logic vs negative/inverted logic).
This parameter can be a value of SMARTCARD_Data_Inv
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uint32_t SMARTCARD_AdvFeatureInitTypeDef::Swap
Specifies whether TX and RX pins are swapped. This parameter can be a value of
SMARTCARD_Rx_Tx_Swap
uint32_t SMARTCARD_AdvFeatureInitTypeDef::OverrunDisable
Specifies whether the reception overrun detection is disabled. This parameter can be
a value of SMARTCARD_Overrun_Disable
uint32_t SMARTCARD_AdvFeatureInitTypeDef::DMADisableonRxError
Specifies whether the DMA is disabled in case of reception error. This parameter can
be a value of SMARTCARD_DMA_Disable_on_Rx_Error
uint32_t SMARTCARD_AdvFeatureInitTypeDef::MSBFirst
Specifies whether MSB is sent first on UART line. This parameter can be a value of
SMARTCARD_MSB_First
41.1.3 SMARTCARD_HandleTypeDef
Data Fields
USART_TypeDef * Instance
SMARTCARD_InitTypeDef Init
SMARTCARD_AdvFeatureInitTypeDef AdvancedInit
uint8_t * pTxBuffPtr
uint16_t TxXferSize
__IO uint16_t TxXferCount
uint8_t * pRxBuffPtr
uint16_t RxXferSize
__IO uint16_t RxXferCount
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
HAL_LockTypeDef Lock
__IO HAL_SMARTCARD_StateTypeDef gState
__IO HAL_SMARTCARD_StateTypeDef RxState
__IO uint32_t ErrorCode
Field Documentation
USART_TypeDef* SMARTCARD_HandleTypeDef::Instance
USART registers base address
SMARTCARD_InitTypeDef SMARTCARD_HandleTypeDef::Init
SmartCard communication parameters
SMARTCARD_AdvFeatureInitTypeDef
SMARTCARD_HandleTypeDef::AdvancedInit
SmartCard advanced features initialization parameters
uint8_t* SMARTCARD_HandleTypeDef::pTxBuffPtr
Pointer to SmartCard Tx transfer Buffer
uint16_t SMARTCARD_HandleTypeDef::TxXferSize
SmartCard Tx Transfer size
__IO uint16_t SMARTCARD_HandleTypeDef::TxXferCount
SmartCard Tx Transfer Counter
uint8_t* SMARTCARD_HandleTypeDef::pRxBuffPtr
Pointer to SmartCard Rx transfer Buffer
uint16_t SMARTCARD_HandleTypeDef::RxXferSize
SmartCard Rx Transfer size
__IO uint16_t SMARTCARD_HandleTypeDef::RxXferCount
SmartCard Rx Transfer Counter
DMA_HandleTypeDef* SMARTCARD_HandleTypeDef::hdmatx
SmartCard Tx DMA Handle parameters
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DMA_HandleTypeDef* SMARTCARD_HandleTypeDef::hdmarx
SmartCard Rx DMA Handle parameters
HAL_LockTypeDef SMARTCARD_HandleTypeDef::Lock
Locking object
__IO HAL_SMARTCARD_StateTypeDef SMARTCARD_HandleTypeDef::gState
SmartCard state information related to global Handle management and also related to
Tx operations. This parameter can be a value of HAL_SMARTCARD_StateTypeDef
__IO HAL_SMARTCARD_StateTypeDef SMARTCARD_HandleTypeDef::RxState
SmartCard state information related to Rx operations. This parameter can be a value
of HAL_SMARTCARD_StateTypeDef
__IO uint32_t SMARTCARD_HandleTypeDef::ErrorCode
SmartCard Error code
41.2 SMARTCARD Firmware driver API description
41.2.1 How to use this driver
The SMARTCARD HAL driver can be used as follows:
1. Declare a SMARTCARD_HandleTypeDef handle structure (eg.
SMARTCARD_HandleTypeDef hsmartcard).
2. Associate a USART to the SMARTCARD handle hsmartcard.
3. Initialize the SMARTCARD low level resources by implementing the
HAL_SMARTCARD_MspInit() API:
Enable the USARTx interface clock.
USART pins configuration:
Enable the clock for the USART GPIOs.
Configure the USART pins (TX as alternate function pull-up, RX as alternate
function Input).
NVIC configuration if you need to use interrupt process
(HAL_SMARTCARD_Transmit_IT() and HAL_SMARTCARD_Receive_IT() APIs):
Configure the USARTx interrupt priority.
Enable the NVIC USART IRQ handle.
DMA Configuration if you need to use DMA process
(HAL_SMARTCARD_Transmit_DMA() and HAL_SMARTCARD_Receive_DMA()
APIs):
Declare a DMA handle structure for the Tx/Rx channel.
Enable the DMAx interface clock.
Configure the declared DMA handle structure with the required Tx/Rx
parameters.
Configure the DMA Tx/Rx channel.
Associate the initialized DMA handle to the SMARTCARD DMA Tx/Rx
handle.
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx/Rx channel.
4. Program the Baud Rate, Parity, Mode(Receiver/Transmitter), clock enabling/disabling
and accordingly, the clock parameters (parity, phase, last bit), prescaler value, guard
time and NACK on transmission error enabling or disabling in the hsmartcard handle
Init structure.
5. If required, program SMARTCARD advanced features (TX/RX pins swap, TimeOut,
auto-retry counter,...) in the hsmartcard handle AdvancedInit structure.
6. Initialize the SMARTCARD registers by calling the HAL_SMARTCARD_Init() API:
This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
by calling the customized HAL_SMARTCARD_MspInit() API.
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The specific SMARTCARD interrupts (Transmission complete interrupt, RXNE
interrupt and Error Interrupts) will be managed using the macros
__HAL_SMARTCARD_ENABLE_IT() and __HAL_SMARTCARD_DISABLE_IT()
inside the transmit and receive process.
Three operation modes are available within this driver :
Polling mode IO operation
Send an amount of data in blocking mode using HAL_SMARTCARD_Transmit()
Receive an amount of data in blocking mode using HAL_SMARTCARD_Receive()
Interrupt mode IO operation
Send an amount of data in non-blocking mode using
HAL_SMARTCARD_Transmit_IT()
At transmission end of transfer HAL_SMARTCARD_TxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_TxCpltCallback()
Receive an amount of data in non-blocking mode using
HAL_SMARTCARD_Receive_IT()
At reception end of transfer HAL_SMARTCARD_RxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_RxCpltCallback()
In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_ErrorCallback()
DMA mode IO operation
Send an amount of data in non-blocking mode (DMA) using
HAL_SMARTCARD_Transmit_DMA()
At transmission end of transfer HAL_SMARTCARD_TxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_TxCpltCallback()
Receive an amount of data in non-blocking mode (DMA) using
HAL_SMARTCARD_Receive_DMA()
At reception end of transfer HAL_SMARTCARD_RxCpltCallback() is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_RxCpltCallback()
In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and
user can add his own code by customization of function pointer
HAL_SMARTCARD_ErrorCallback()
SMARTCARD HAL driver macros list
Below the list of most used macros in SMARTCARD HAL driver.
__HAL_SMARTCARD_GET_FLAG : Check whether or not the specified
SMARTCARD flag is set
__HAL_SMARTCARD_CLEAR_FLAG : Clear the specified SMARTCARD pending
flag
__HAL_SMARTCARD_ENABLE_IT: Enable the specified SMARTCARD interrupt
__HAL_SMARTCARD_DISABLE_IT: Disable the specified SMARTCARD interrupt
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__HAL_SMARTCARD_GET_IT_SOURCE: Check whether or not the specified
SMARTCARD interrupt is enabled
You can refer to the SMARTCARD HAL driver header file for more useful macros
41.2.2 Initialization and Configuration functions
This subsection provides a set of functions allowing to initialize the USARTx associated to
the SmartCard.
These parameters can be configured:
Baud Rate
Parity: parity should be enabled, frame Length is fixed to 8 bits plus parity
Receiver/transmitter modes
Synchronous mode (and if enabled, phase, polarity and last bit parameters)
Prescaler value
Guard bit time
NACK enabling or disabling on transmission error
The following advanced features can be configured as well:
TX and/or RX pin level inversion
data logical level inversion
RX and TX pins swap
RX overrun detection disabling
DMA disabling on RX error
MSB first on communication line
Time out enabling (and if activated, timeout value)
Block length
Auto-retry counter
The HAL_SMARTCARD_Init() API follows the USART synchronous configuration
procedures (details for the procedures are available in reference manual).
This section contains the following APIs:
HAL_SMARTCARD_Init()
HAL_SMARTCARD_DeInit()
HAL_SMARTCARD_MspInit()
HAL_SMARTCARD_MspDeInit()
41.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the SMARTCARD data
transfers.
Smartcard is a single wire half duplex communication protocol. The Smartcard interface is
designed to support asynchronous protocol Smartcards as defined in the ISO 7816-3
standard. The USART should be configured as:
8 bits plus parity: where M=1 and PCE=1 in the USART_CR1 register
1.5 stop bits when transmitting and receiving: where STOP=11 in the USART_CR2
register.
(+) There are two modes of transfer: (++) Blocking mode: The communication is performed
in polling mode. The HAL status of all data processing is returned by the same function
after finishing transfer. (++) Non-Blocking mode: The communication is performed using
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Interrupts or DMA, the relevant API's return the HAL status. The end of the data processing
will be indicated through the dedicated SMARTCARD IRQ when using Interrupt mode or
the DMA IRQ when using DMA mode. (++) The HAL_SMARTCARD_TxCpltCallback(),
HAL_SMARTCARD_RxCpltCallback() user callbacks will be executed respectively at the
end of the Transmit or Receive process The HAL_SMARTCARD_ErrorCallback() user
callback will be executed when a communication error is detected. (+) Blocking mode APIs
are : (++) HAL_SMARTCARD_Transmit() (++) HAL_SMARTCARD_Receive() (+) Non
Blocking mode APIs with Interrupt are : (++) HAL_SMARTCARD_Transmit_IT() (++)
HAL_SMARTCARD_Receive_IT() (++) HAL_SMARTCARD_IRQHandler() (+) Non
Blocking mode functions with DMA are : (++) HAL_SMARTCARD_Transmit_DMA() (++)
HAL_SMARTCARD_Receive_DMA() (+) A set of Transfer Complete Callbacks are
provided in non Blocking mode: (++) HAL_SMARTCARD_TxCpltCallback() (++)
HAL_SMARTCARD_RxCpltCallback() (++) HAL_SMARTCARD_ErrorCallback()
1. Non-Blocking mode transfers could be aborted using Abort API's : (+)
HAL_SMARTCARD_Abort() (+) HAL_SMARTCARD_AbortTransmit() (+)
HAL_SMARTCARD_AbortReceive() (+) HAL_SMARTCARD_Abort_IT() (+)
HAL_SMARTCARD_AbortTransmit_IT() (+) HAL_SMARTCARD_AbortReceive_IT()
2. For Abort services based on interrupts (HAL_SMARTCARD_Abortxxx_IT), a set of
Abort Complete Callbacks are provided: (+) HAL_SMARTCARD_AbortCpltCallback()
(+) HAL_SMARTCARD_AbortTransmitCpltCallback() (+)
HAL_SMARTCARD_AbortReceiveCpltCallback()
3. In Non-Blocking mode transfers, possible errors are split into 2 categories. Errors are
handled as follows : (+) Error is considered as Recoverable and non blocking :
Transfer could go till end, but error severity is to be evaluated by user : this concerns
Frame Error, Parity Error or Noise Error in Interrupt mode reception . Received
character is then retrieved and stored in Rx buffer, Error code is set to allow user to
identify error type, and HAL_SMARTCARD_ErrorCallback() user callback is executed.
Transfer is kept ongoing on SMARTCARD side. If user wants to abort it, Abort
services should be called by user. (+) Error is considered as Blocking : Transfer could
not be completed properly and is aborted. This concerns Frame Error in Interrupt
mode tranmission, Overrun Error in Interrupt mode reception and all errors in DMA
mode. Error code is set to allow user to identify error type, and
HAL_SMARTCARD_ErrorCallback() user callback is executed.
There are two modes of transfer:
Blocking mode: The communication is performed in polling mode. The HAL
status of all data processing is returned by the same function after finishing
transfer.
Non-Blocking mode: The communication is performed using Interrupts or DMA,
the relevant API's return the HAL status. The end of the data processing will be
indicated through the dedicated SMARTCARD IRQ when using Interrupt mode or
the DMA IRQ when using DMA mode.
The HAL_SMARTCARD_TxCpltCallback(),
HAL_SMARTCARD_RxCpltCallback() user callbacks will be executed
respectively at the end of the Transmit or Receive process The
HAL_SMARTCARD_ErrorCallback() user callback will be executed when a
communication error is detected.
Blocking mode APIs are :
HAL_SMARTCARD_Transmit()
HAL_SMARTCARD_Receive()
Non Blocking mode APIs with Interrupt are :
HAL_SMARTCARD_Transmit_IT()
HAL_SMARTCARD_Receive_IT()
HAL_SMARTCARD_IRQHandler()
Non Blocking mode functions with DMA are :
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HAL_SMARTCARD_Transmit_DMA()
HAL_SMARTCARD_Receive_DMA()
A set of Transfer Complete Callbacks are provided in non Blocking mode:
HAL_SMARTCARD_TxCpltCallback()
HAL_SMARTCARD_RxCpltCallback()
HAL_SMARTCARD_ErrorCallback() (#) Non-Blocking mode transfers could be
aborted using Abort API's :
HAL_SMARTCARD_Abort()
HAL_SMARTCARD_AbortTransmit()
HAL_SMARTCARD_AbortReceive()
HAL_SMARTCARD_Abort_IT()
HAL_SMARTCARD_AbortTransmit_IT()
HAL_SMARTCARD_AbortReceive_IT() (#) For Abort services based on interrupts
(HAL_SMARTCARD_Abortxxx_IT), a set of Abort Complete Callbacks are provided:
HAL_SMARTCARD_AbortCpltCallback()
HAL_SMARTCARD_AbortTransmitCpltCallback()
HAL_SMARTCARD_AbortReceiveCpltCallback() (#) In Non-Blocking mode transfers,
possible errors are split into 2 categories. Errors are handled as follows :
Error is considered as Recoverable and non blocking : Transfer could go till end, but
error severity is to be evaluated by user : this concerns Frame Error, Parity Error or
Noise Error in Interrupt mode reception . Received character is then retrieved and
stored in Rx buffer, Error code is set to allow user to identify error type, and
HAL_SMARTCARD_ErrorCallback() user callback is executed. Transfer is kept
ongoing on SMARTCARD side. If user wants to abort it, Abort services should be
called by user.
Error is considered as Blocking : Transfer could not be completed properly and is
aborted. This concerns Frame Error in Interrupt mode tranmission, Overrun Error in
Interrupt mode reception and all errors in DMA mode. Error code is set to allow user to
identify error type, and HAL_SMARTCARD_ErrorCallback() user callback is executed.
This section contains the following APIs:
HAL_SMARTCARD_Transmit()
HAL_SMARTCARD_Receive()
HAL_SMARTCARD_Transmit_IT()
HAL_SMARTCARD_Receive_IT()
HAL_SMARTCARD_Transmit_DMA()
HAL_SMARTCARD_Receive_DMA()
HAL_SMARTCARD_Abort()
HAL_SMARTCARD_AbortTransmit()
HAL_SMARTCARD_AbortReceive()
HAL_SMARTCARD_Abort_IT()
HAL_SMARTCARD_AbortTransmit_IT()
HAL_SMARTCARD_AbortReceive_IT()
HAL_SMARTCARD_IRQHandler()
HAL_SMARTCARD_TxCpltCallback()
HAL_SMARTCARD_RxCpltCallback()
HAL_SMARTCARD_ErrorCallback()
HAL_SMARTCARD_AbortCpltCallback()
HAL_SMARTCARD_AbortTransmitCpltCallback()
HAL_SMARTCARD_AbortReceiveCpltCallback()
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41.2.4 Peripheral State and Errors functions
This subsection provides a set of functions allowing to return the State of SmartCard
handle and also return Peripheral Errors occurred during communication process
HAL_SMARTCARD_GetState() API can be helpful to check in run-time the state of
the SMARTCARD peripheral.
HAL_SMARTCARD_GetError() checks in run-time errors that could occur during
communication.
This section contains the following APIs:
HAL_SMARTCARD_GetState()
HAL_SMARTCARD_GetError()
41.2.5 Detailed description of functions
HAL_SMARTCARD_Init
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Init
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Initialize the SMARTCARD mode according to the specified
parameters in the SMARTCARD_HandleTypeDef and initialize the
associated handle.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
HAL_SMARTCARD_DeInit
Function name
HAL_StatusTypeDef HAL_SMARTCARD_DeInit
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
DeInitialize the SMARTCARD peripheral.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
HAL_SMARTCARD_MspInit
Function name
void HAL_SMARTCARD_MspInit
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Initialize the SMARTCARD MSP.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
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HAL_SMARTCARD_MspDeInit
Function name
void HAL_SMARTCARD_MspDeInit
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
DeInitialize the SMARTCARD MSP.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_Transmit
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Transmit
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size, uint32_t Timeout)
Function description
Send an amount of data in blocking mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
Size: amount of data to be sent.
Timeout: Timeout duration.
Return values
HAL: status
HAL_SMARTCARD_Receive
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Receive
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size, uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
Size: amount of data to be received.
Timeout: Timeout duration.
Return values
HAL: status
HAL_SMARTCARD_Transmit_IT
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size)
Function description
Send an amount of data in interrupt mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
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Size: amount of data to be sent.
Return values
HAL: status
HAL_SMARTCARD_Receive_IT
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Receive_IT
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size)
Function description
Receive an amount of data in interrupt mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
HAL_SMARTCARD_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size)
Function description
Send an amount of data in DMA mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
HAL_SMARTCARD_Receive_DMA
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Receive_DMA
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t * pData,
uint16_t Size)
Function description
Receive an amount of data in DMA mode.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
pData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
Notes
The SMARTCARD-associated USART parity is enabled (PCE
= 1), the received data contain the parity bit (MSB position).
HAL_SMARTCARD_Abort
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Abort
(SMARTCARD_HandleTypeDef * hsmartcard)
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Function description
Abort ongoing transfers (blocking mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Tx and Rx)Disable the DMA transfer in the
peripheral register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort (in case of transfer in DMA mode)Set
handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_SMARTCARD_AbortTransmit
Function name
HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Abort ongoing Transmit transfer (blocking mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Tx)Disable the DMA transfer in the peripheral
register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort (in case of transfer in DMA mode)Set
handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_SMARTCARD_AbortReceive
Function name
HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Abort ongoing Receive transfer (blocking mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Rx)Disable the DMA transfer in the peripheral
register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort (in case of transfer in DMA mode)Set
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handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_SMARTCARD_Abort_IT
Function name
HAL_StatusTypeDef HAL_SMARTCARD_Abort_IT
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Abort ongoing transfers (Interrupt mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Tx and Rx)Disable the DMA transfer in the
peripheral register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort_IT (in case of transfer in DMA mode)Set
handle State to READYAt abort completion, call user abort
complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_SMARTCARD_AbortTransmit_IT
Function name
HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit_IT
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Abort ongoing Transmit transfer (Interrupt mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Tx)Disable the DMA transfer in the peripheral
register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort_IT (in case of transfer in DMA mode)Set
handle State to READYAt abort completion, call user abort
complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
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HAL_SMARTCARD_AbortReceive_IT
Function name
HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive_IT
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Abort ongoing Receive transfer (Interrupt mode).
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable SMARTCARD
Interrupts (Rx)Disable the DMA transfer in the peripheral
register (if enabled)Abort DMA transfer by calling
HAL_DMA_Abort_IT (in case of transfer in DMA mode)Set
handle State to READYAt abort completion, call user abort
complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_SMARTCARD_IRQHandler
Function name
void HAL_SMARTCARD_IRQHandler
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Handle SMARTCARD interrupt requests.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_TxCpltCallback
Function name
void HAL_SMARTCARD_TxCpltCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Tx Transfer completed callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_RxCpltCallback
Function name
void HAL_SMARTCARD_RxCpltCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Rx Transfer completed callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
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specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_ErrorCallback
Function name
void HAL_SMARTCARD_ErrorCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
SMARTCARD error callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_AbortCpltCallback
Function name
void HAL_SMARTCARD_AbortCpltCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
SMARTCARD Abort Complete callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_AbortTransmitCpltCallback
Function name
void HAL_SMARTCARD_AbortTransmitCpltCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
SMARTCARD Abort Complete callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
HAL_SMARTCARD_AbortReceiveCpltCallback
Function name
void HAL_SMARTCARD_AbortReceiveCpltCallback
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
SMARTCARD Abort Receive Complete callback.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
None
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HAL_SMARTCARD_GetState
Function name
HAL_SMARTCARD_StateTypeDef
HAL_SMARTCARD_GetState (SMARTCARD_HandleTypeDef *
hsmartcard)
Function description
Return the SMARTCARD handle state.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
SMARTCARD: handle state
HAL_SMARTCARD_GetError
Function name
uint32_t HAL_SMARTCARD_GetError
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Return the SMARTCARD handle error code.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
SMARTCARD: handle Error Code
41.3 SMARTCARD Firmware driver defines
41.3.1 SMARTCARD
SMARTCARD Advanced Features Initialization
SMARTCARD_ADVFEATURE_NO_INIT
SMARTCARD_ADVFEATURE_TXINVERT_INIT
SMARTCARD_ADVFEATURE_RXINVERT_INIT
SMARTCARD_ADVFEATURE_DATAINVERT_INIT
SMARTCARD_ADVFEATURE_SWAP_INIT
SMARTCARD_ADVFEATURE_RXOVERRUNDISABLE_INIT
SMARTCARD_ADVFEATURE_DMADISABLEONERROR_INIT
SMARTCARD_ADVFEATURE_MSBFIRST_INIT
SMARTCARD Clock Phase
SMARTCARD_PHASE_1EDGE
SMARTCARD frame phase on first clock transition
SMARTCARD_PHASE_2EDGE
SMARTCARD frame phase on second clock transition
SMARTCARD Clock Polarity
SMARTCARD_POLARITY_LOW
SMARTCARD frame low polarity
SMARTCARD_POLARITY_HIGH
SMARTCARD frame high polarity
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SMARTCARD auto retry counter LSB position in CR3 register
SMARTCARD_CR3_SCARCNT_LSB_POS
SMARTCARD auto retry counter LSB
position in CR3 register
SMARTCARD advanced feature Binary Data inversion
SMARTCARD_ADVFEATURE_DATAINV_DISABLE
Binary data inversion disable
SMARTCARD_ADVFEATURE_DATAINV_ENABLE
Binary data inversion enable
SMARTCARD advanced feature DMA Disable on Rx Error
SMARTCARD_ADVFEATURE_DMA_ENABLEONRXERROR
DMA enable on
Reception Error
SMARTCARD_ADVFEATURE_DMA_DISABLEONRXERROR
DMA disable on
Reception Error
SMARTCARD DMA Requests
SMARTCARD_DMAREQ_TX
SMARTCARD_DMAREQ_RX
SMARTCARD Exported Macros
__HAL_SMARTCARD_RESET_HANDL
E_STATE
Description:
Reset SMARTCARD handle states.
Parameters:
__HANDLE__: SMARTCARD handle.
Return value:
None
__HAL_SMARTCARD_FLUSH_
DRREGISTER
Description:
Flush the Smartcard Data registers.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_CLEAR_FLAG
Description:
Clear the specified SMARTCARD pending
flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__FLAG__: specifies the flag to check.
This parameter can be any combination of
the following values:
SMARTCARD_CLEAR_PEF Parity
error clear flag
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SMARTCARD_CLEAR_FEF Framing
error clear flag
SMARTCARD_CLEAR_NEF Noise
detected clear flag
SMARTCARD_CLEAR_OREF
OverRun error clear flag
SMARTCARD_CLEAR_IDLEF Idle
line detected clear flag
SMARTCARD_CLEAR_TCF
Transmission complete clear flag
SMARTCARD_CLEAR_RTOF
Receiver timeout clear flag
SMARTCARD_CLEAR_EOBF End of
block clear flag
Return value:
None
__HAL_SMARTCARD_CLEAR_PEFLA
G
Description:
Clear the SMARTCARD PE pending flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_CLEAR_FEFLA
G
Description:
Clear the SMARTCARD FE pending flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_CLEAR_NEFLA
G
Description:
Clear the SMARTCARD NE pending flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_CLEAR_
OREFLAG
Description:
Clear the SMARTCARD ORE pending
flag.
Parameters:
__HANDLE__: specifies the
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SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_CLEAR_IDLE
FLAG
Description:
Clear the SMARTCARD IDLE pending
flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_GET_FLAG
Description:
Check whether the specified Smartcard
flag is set or not.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__FLAG__: specifies the flag to check.
This parameter can be one of the following
values:
SMARTCARD_FLAG_REACK
Receive enable acknowledge flag
SMARTCARD_FLAG_TEACK
Transmit enable acknowledge flag
SMARTCARD_FLAG_BUSY Busy
flag
SMARTCARD_FLAG_EOBF End of
block flag
SMARTCARD_FLAG_RTOF
Receiver timeout flag
SMARTCARD_FLAG_TXE Transmit
data register empty flag
SMARTCARD_FLAG_TC
Transmission complete flag
SMARTCARD_FLAG_RXNE Receive
data register not empty flag
SMARTCARD_FLAG_IDLE Idle line
detection flag
SMARTCARD_FLAG_ORE Overrun
error flag
SMARTCARD_FLAG_NE Noise error
flag
SMARTCARD_FLAG_FE Framing
error flag
SMARTCARD_FLAG_PE Parity error
flag
Return value:
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The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_SMARTCARD_ENABLE_IT
Description:
Enable the specified SmartCard interrupt.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__INTERRUPT__: specifies the
SMARTCARD interrupt to enable. This
parameter can be one of the following
values:
SMARTCARD_IT_EOB End of block
interrupt
SMARTCARD_IT_RTO Receive
timeout interrupt
SMARTCARD_IT_TXE Transmit data
register empty interrupt
SMARTCARD_IT_TC Transmission
complete interrupt
SMARTCARD_IT_RXNE Receive
data register not empty interrupt
SMARTCARD_IT_IDLE Idle line
detection interrupt
SMARTCARD_IT_PE Parity error
interrupt
SMARTCARD_IT_ERR Error
interrupt(frame error, noise error,
overrun error)
Return value:
None
__HAL_SMARTCARD_DISABLE_IT
Description:
Disable the specified SmartCard interrupt.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__INTERRUPT__: specifies the
SMARTCARD interrupt to disable. This
parameter can be one of the following
values:
SMARTCARD_IT_EOB End of block
interrupt
SMARTCARD_IT_RTO Receive
timeout interrupt
SMARTCARD_IT_TXE Transmit data
register empty interrupt
SMARTCARD_IT_TC Transmission
complete interrupt
SMARTCARD_IT_RXNE Receive
data register not empty interrupt
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SMARTCARD_IT_IDLE Idle line
detection interrupt
SMARTCARD_IT_PE Parity error
interrupt
SMARTCARD_IT_ERR Error
interrupt(frame error, noise error,
overrun error)
Return value:
None
__HAL_SMARTCARD_GET_IT
Description:
Check whether the specified SmartCard
interrupt has occurred or not.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__IT__: specifies the SMARTCARD
interrupt to check. This parameter can be
one of the following values:
SMARTCARD_IT_EOB End of block
interrupt
SMARTCARD_IT_RTO Receive
timeout interrupt
SMARTCARD_IT_TXE Transmit data
register empty interrupt
SMARTCARD_IT_TC Transmission
complete interrupt
SMARTCARD_IT_RXNE Receive
data register not empty interrupt
SMARTCARD_IT_IDLE Idle line
detection interrupt
SMARTCARD_IT_ORE Overrun error
interrupt
SMARTCARD_IT_NE Noise error
interrupt
SMARTCARD_IT_FE Framing error
interrupt
SMARTCARD_IT_PE Parity error
interrupt
Return value:
The: new state of __IT__ (TRUE or
FALSE).
__HAL_SMARTCARD_GET_IT_
SOURCE
Description:
Check whether the specified SmartCard
interrupt source is enabled or not.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__IT__: specifies the SMARTCARD
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interrupt source to check. This parameter
can be one of the following values:
SMARTCARD_IT_EOB End of block
interrupt
SMARTCARD_IT_RTO Receive
timeout interrupt
SMARTCARD_IT_TXE Transmit data
register empty interrupt
SMARTCARD_IT_TC Transmission
complete interrupt
SMARTCARD_IT_RXNE Receive
data register not empty interrupt
SMARTCARD_IT_IDLE Idle line
detection interrupt
SMARTCARD_IT_ERR Framing,
overrun or noise error interrupt
SMARTCARD_IT_PE Parity error
interrupt
Return value:
The: new state of __IT__ (TRUE or
FALSE).
__HAL_SMARTCARD_CLEAR_IT
Description:
Clear the specified SMARTCARD ISR
flag, in setting the proper ICR register flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__IT_CLEAR__: specifies the interrupt
clear register flag that needs to be set to
clear the corresponding interrupt. This
parameter can be one of the following
values:
SMARTCARD_CLEAR_PEF Parity
error clear flag
SMARTCARD_CLEAR_FEF Framing
error clear flag
SMARTCARD_CLEAR_NEF Noise
detected clear flag
SMARTCARD_CLEAR_OREF
OverRun error clear flag
SMARTCARD_CLEAR_IDLEF Idle
line detection clear flag
SMARTCARD_CLEAR_TCF
Transmission complete clear flag
SMARTCARD_CLEAR_RTOF
Receiver timeout clear flag
SMARTCARD_CLEAR_EOBF End of
block clear flag
Return value:
None
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__HAL_SMARTCARD_SEND_REQ
Description:
Set a specific SMARTCARD request flag.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
__REQ__: specifies the request flag to set
This parameter can be one of the following
values:
SMARTCARD_RXDATA_FLUSH_RE
QUEST Receive data flush Request
SMARTCARD_TXDATA_FLUSH_RE
QUEST Transmit data flush Request
Return value:
None
__HAL_SMARTCARD_ONE_BIT_
SAMPLE_ENABLE
Description:
Enable the SMARTCARD one bit sample
method.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_ONE_BIT_
SAMPLE_DISABLE
Description:
Disable the SMARTCARD one bit sample
method.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_ENABLE
Description:
Enable the USART associated to the
SMARTCARD Handle.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_DISABLE
Description:
Disable the USART associated to the
SMARTCARD Handle.
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Parameters:
__HANDLE__: specifies the
SMARTCARD Handle.
Return value:
None
__HAL_SMARTCARD_DMA_REQUEST
_ENABLE
Description:
Macros to enable or disable the
SmartCard DMA request.
Parameters:
__HANDLE__: specifies the
SMARTCARD Handle. The Handle
Instance which can be USART1 or
USART2.
__REQUEST__: specifies the SmartCard
DMA request. This parameter can be one
of the following values:
SMARTCARD_DMAREQ_TX:
SmartCard DMA transmit request
SMARTCARD_DMAREQ_RX:
SmartCard DMA receive request
__HAL_SMARTCARD_DMA_REQUEST
_DISABLE
SMARTCARD Flags
SMARTCARD_FLAG_REACK
SMARTCARD receive enable acknowledge flag
SMARTCARD_FLAG_TEACK
SMARTCARD transmit enable acknowledge flag
SMARTCARD_FLAG_BUSY
SMARTCARD busy flag
SMARTCARD_FLAG_EOBF
SMARTCARD end of block flag
SMARTCARD_FLAG_RTOF
SMARTCARD receiver timeout flag
SMARTCARD_FLAG_TXE
SMARTCARD transmit data register empty
SMARTCARD_FLAG_TC
SMARTCARD transmission complete
SMARTCARD_FLAG_RXNE
SMARTCARD read data register not empty
SMARTCARD_FLAG_IDLE
SMARTCARD idle line detection
SMARTCARD_FLAG_ORE
SMARTCARD overrun error
SMARTCARD_FLAG_NE
SMARTCARD noise error
SMARTCARD_FLAG_FE
SMARTCARD frame error
SMARTCARD_FLAG_PE
SMARTCARD parity error
SMARTCARD guard time value LSB position in GTPR register
SMARTCARD_GTPR_GT_LSB_POS
SMARTCARD guard time value LSB position in
GTPR register
SMARTCARD interruptions flags mask
SMARTCARD_IT_MASK
SMARTCARD interruptions flags mask
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SMARTCARD Interrupt definition
SMARTCARD_IT_PE
SMARTCARD parity error interruption
SMARTCARD_IT_TXE
SMARTCARD transmit data register empty interruption
SMARTCARD_IT_TC
SMARTCARD transmission complete interruption
SMARTCARD_IT_RXNE
SMARTCARD read data register not empty interruption
SMARTCARD_IT_IDLE
SMARTCARD idle line detection interruption
SMARTCARD_IT_ERR
SMARTCARD error interruption
SMARTCARD_IT_ORE
SMARTCARD overrun error interruption
SMARTCARD_IT_NE
SMARTCARD noise error interruption
SMARTCARD_IT_FE
SMARTCARD frame error interruption
SMARTCARD_IT_EOB
SMARTCARD end of block interruption
SMARTCARD_IT_RTO
SMARTCARD receiver timeout interruption
SMARTCARD IT CLEAR Flags
SMARTCARD_CLEAR_PEF
Parity Error Clear Flag
SMARTCARD_CLEAR_FEF
Framing Error Clear Flag
SMARTCARD_CLEAR_NEF
Noise detected Clear Flag
SMARTCARD_CLEAR_OREF
OverRun Error Clear Flag
SMARTCARD_CLEAR_IDLEF
IDLE line detected Clear Flag
SMARTCARD_CLEAR_TCF
Transmission Complete Clear Flag
SMARTCARD_CLEAR_RTOF
Receiver Time Out Clear Flag
SMARTCARD_CLEAR_EOBF
End Of Block Clear Flag
SMARTCARD Last Bit
SMARTCARD_LASTBIT_DISABLE
SMARTCARD frame last data bit clock pulse not
output to SCLK pin
SMARTCARD_LASTBIT_ENABLE
SMARTCARD frame last data bit clock pulse output
to SCLK pin
SMARTCARD Transfer Mode
SMARTCARD_MODE_RX
SMARTCARD RX mode
SMARTCARD_MODE_TX
SMARTCARD TX mode
SMARTCARD_MODE_TX_RX
SMARTCARD RX and TX mode
SMARTCARD advanced feature MSB first
SMARTCARD_ADVFEATURE_MSBFIRST_DISABLE
Most significant bit sent/received
first disable
SMARTCARD_ADVFEATURE_MSBFIRST_ENABLE
Most significant bit sent/received
first enable
SMARTCARD NACK Enable
SMARTCARD_NACK_ENABLE
SMARTCARD NACK transmission disabled
SMARTCARD_NACK_DISABLE
SMARTCARD NACK transmission enabled
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SMARTCARD One Bit Sampling Method
SMARTCARD_ONE_BIT_SAMPLE_DISABLE
SMARTCARD frame one-bit sample
disabled
SMARTCARD_ONE_BIT_SAMPLE_ENABLE
SMARTCARD frame one-bit sample
enabled
SMARTCARD advanced feature Overrun Disable
SMARTCARD_ADVFEATURE_OVERRUN_ENABLE
RX overrun enable
SMARTCARD_ADVFEATURE_OVERRUN_DISABLE
RX overrun disable
SMARTCARD Parity
SMARTCARD_PARITY_EVEN
SMARTCARD frame even parity
SMARTCARD_PARITY_ODD
SMARTCARD frame odd parity
SMARTCARD Request Parameters
SMARTCARD_RXDATA_FLUSH_REQUEST
Receive data flush request
SMARTCARD_TXDATA_FLUSH_REQUEST
Transmit data flush request
SMARTCARD block length LSB position in RTOR register
SMARTCARD_RTOR_BLEN_LSB_POS
SMARTCARD block length LSB position in
RTOR register
SMARTCARD advanced feature RX pin active level inversion
SMARTCARD_ADVFEATURE_RXINV_DISABLE
RX pin active level inversion disable
SMARTCARD_ADVFEATURE_RXINV_ENABLE
RX pin active level inversion enable
SMARTCARD advanced feature RX TX pins swap
SMARTCARD_ADVFEATURE_SWAP_DISABLE
TX/RX pins swap disable
SMARTCARD_ADVFEATURE_SWAP_ENABLE
TX/RX pins swap enable
SMARTCARD Number of Stop Bits
SMARTCARD_STOPBITS_0_5
SMARTCARD frame with 0.5 stop bit
SMARTCARD_STOPBITS_1_5
SMARTCARD frame with 1.5 stop bits
SMARTCARD Timeout Enable
SMARTCARD_TIMEOUT_DISABLE
SMARTCARD receiver timeout disabled
SMARTCARD_TIMEOUT_ENABLE
SMARTCARD receiver timeout enabled
SMARTCARD advanced feature TX pin active level inversion
SMARTCARD_ADVFEATURE_TXINV_DISABLE
TX pin active level inversion disable
SMARTCARD_ADVFEATURE_TXINV_ENABLE
TX pin active level inversion enable
SMARTCARD Word Length
SMARTCARD_WORDLENGTH_9B
SMARTCARD frame length
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42 HAL SMARTCARD Extension Driver
42.1 SMARTCARDEx Firmware driver API description
42.1.1 SMARTCARD peripheral extended features
The Extended SMARTCARD HAL driver can be used as follows:
1. After having configured the SMARTCARD basic features with
HAL_SMARTCARD_Init(), then program SMARTCARD advanced features if required
(TX/RX pins swap, TimeOut, auto-retry counter,...) in the hsmartcard AdvancedInit
structure.
42.1.2 Peripheral Control functions
This subsection provides a set of functions allowing to initialize the SMARTCARD.
HAL_SMARTCARDEx_BlockLength_Config() API allows to configure the Block
Length on the fly
HAL_SMARTCARDEx_TimeOut_Config() API allows to configure the receiver timeout
value on the fly
HAL_SMARTCARDEx_EnableReceiverTimeOut() API enables the receiver timeout
feature
HAL_SMARTCARDEx_DisableReceiverTimeOut() API disables the receiver timeout
feature
This section contains the following APIs:
HAL_SMARTCARDEx_BlockLength_Config()
HAL_SMARTCARDEx_TimeOut_Config()
HAL_SMARTCARDEx_EnableReceiverTimeOut()
HAL_SMARTCARDEx_DisableReceiverTimeOut()
42.1.3 Detailed description of functions
HAL_SMARTCARDEx_BlockLength_Config
Function name
void HAL_SMARTCARDEx_BlockLength_Config
(SMARTCARD_HandleTypeDef * hsmartcard, uint8_t
BlockLength)
Function description
Update on the fly the SMARTCARD block length in RTOR register.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
BlockLength: SMARTCARD block length (8-bit long at
most)
Return values
None
HAL_SMARTCARDEx_TimeOut_Config
Function name
void HAL_SMARTCARDEx_TimeOut_Config
(SMARTCARD_HandleTypeDef * hsmartcard, uint32_t
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TimeOutValue)
Function description
Update on the fly the receiver timeout value in RTOR register.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
TimeOutValue: receiver timeout value in number of baud
blocks. The timeout value must be less or equal to
0x0FFFFFFFF.
Return values
None
HAL_SMARTCARDEx_EnableReceiverTimeOut
Function name
HAL_StatusTypeDef
HAL_SMARTCARDEx_EnableReceiverTimeOut
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Enable the SMARTCARD receiver timeout feature.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
HAL_SMARTCARDEx_DisableReceiverTimeOut
Function name
HAL_StatusTypeDef
HAL_SMARTCARDEx_DisableReceiverTimeOut
(SMARTCARD_HandleTypeDef * hsmartcard)
Function description
Disable the SMARTCARD receiver timeout feature.
Parameters
hsmartcard: Pointer to a SMARTCARD_HandleTypeDef
structure that contains the configuration information for the
specified SMARTCARD module.
Return values
HAL: status
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43 HAL SMBUS Generic Driver
43.1 SMBUS Firmware driver registers structures
43.1.1 SMBUS_InitTypeDef
Data Fields
uint32_t Timing
uint32_t AnalogFilter
uint32_t OwnAddress1
uint32_t AddressingMode
uint32_t DualAddressMode
uint32_t OwnAddress2
uint32_t OwnAddress2Masks
uint32_t GeneralCallMode
uint32_t NoStretchMode
uint32_t PacketErrorCheckMode
uint32_t PeripheralMode
uint32_t SMBusTimeout
Field Documentation
uint32_t SMBUS_InitTypeDef::Timing
Specifies the SMBUS_TIMINGR_register value. This parameter calculated by
referring to SMBUS initialization section in Reference manual
uint32_t SMBUS_InitTypeDef::AnalogFilter
Specifies if Analog Filter is enable or not. This parameter can be a value of
SMBUS_Analog_Filter
uint32_t SMBUS_InitTypeDef::OwnAddress1
Specifies the first device own address. This parameter can be a 7-bit or 10-bit
address.
uint32_t SMBUS_InitTypeDef::AddressingMode
Specifies if 7-bit or 10-bit addressing mode for master is selected. This parameter can
be a value of SMBUS_addressing_mode
uint32_t SMBUS_InitTypeDef::DualAddressMode
Specifies if dual addressing mode is selected. This parameter can be a value of
SMBUS_dual_addressing_mode
uint32_t SMBUS_InitTypeDef::OwnAddress2
Specifies the second device own address if dual addressing mode is selected This
parameter can be a 7-bit address.
uint32_t SMBUS_InitTypeDef::OwnAddress2Masks
Specifies the acknoledge mask address second device own address if dual
addressing mode is selected This parameter can be a value of
SMBUS_own_address2_masks.
uint32_t SMBUS_InitTypeDef::GeneralCallMode
Specifies if general call mode is selected. This parameter can be a value of
SMBUS_general_call_addressing_mode.
uint32_t SMBUS_InitTypeDef::NoStretchMode
Specifies if nostretch mode is selected. This parameter can be a value of
SMBUS_nostretch_mode
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uint32_t SMBUS_InitTypeDef::PacketErrorCheckMode
Specifies if Packet Error Check mode is selected. This parameter can be a value of
SMBUS_packet_error_check_mode
uint32_t SMBUS_InitTypeDef::PeripheralMode
Specifies which mode of Periphal is selected. This parameter can be a value of
SMBUS_peripheral_mode
uint32_t SMBUS_InitTypeDef::SMBusTimeout
Specifies the content of the 32 Bits SMBUS_TIMEOUT_register value. (Enable bits
and different timeout values) This parameter calculated by referring to SMBUS
initialization section in Reference manual
43.1.2 SMBUS_HandleTypeDef
Data Fields
I2C_TypeDef * Instance
SMBUS_InitTypeDef Init
uint8_t * pBuffPtr
uint16_t XferSize
__IO uint16_t XferCount
__IO uint32_t XferOptions
__IO uint32_t PreviousState
HAL_LockTypeDef Lock
__IO uint32_t State
__IO uint32_t ErrorCode
Field Documentation
I2C_TypeDef* SMBUS_HandleTypeDef::Instance
SMBUS registers base address
SMBUS_InitTypeDef SMBUS_HandleTypeDef::Init
SMBUS communication parameters
uint8_t* SMBUS_HandleTypeDef::pBuffPtr
Pointer to SMBUS transfer buffer
uint16_t SMBUS_HandleTypeDef::XferSize
SMBUS transfer size
__IO uint16_t SMBUS_HandleTypeDef::XferCount
SMBUS transfer counter
__IO uint32_t SMBUS_HandleTypeDef::XferOptions
SMBUS transfer options
__IO uint32_t SMBUS_HandleTypeDef::PreviousState
SMBUS communication Previous state
HAL_LockTypeDef SMBUS_HandleTypeDef::Lock
SMBUS locking object
__IO uint32_t SMBUS_HandleTypeDef::State
SMBUS communication state
__IO uint32_t SMBUS_HandleTypeDef::ErrorCode
SMBUS Error code
43.2 SMBUS Firmware driver API description
43.2.1 How to use this driver
The SMBUS HAL driver can be used as follows:
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1. Declare a SMBUS_HandleTypeDef handle structure, for example:
SMBUS_HandleTypeDef hsmbus;
2. Initialize the SMBUS low level resources by implementing the HAL_SMBUS_MspInit()
API:
a. Enable the SMBUSx interface clock
b. SMBUS pins configuration
Enable the clock for the SMBUS GPIOs
Configure SMBUS pins as alternate function open-drain
c. NVIC configuration if you need to use interrupt process
Configure the SMBUSx interrupt priority
Enable the NVIC SMBUS IRQ Channel
3. Configure the Communication Clock Timing, Bus Timeout, Own Address1, Master
Addressing mode, Dual Addressing mode, Own Address2, Own Address2 Mask,
General call, Nostretch mode, Peripheral mode and Packet Error Check mode in the
hsmbus Init structure.
4. Initialize the SMBUS registers by calling the HAL_SMBUS_Init() API:
These API's configures also the low level Hardware GPIO, CLOCK,
CORTEX...etc) by calling the customized HAL_SMBUS_MspInit(&hsmbus) API.
5. To check if target device is ready for communication, use the function
HAL_SMBUS_IsDeviceReady()
6. For SMBUS IO operations, only one mode of operations is available within this driver
Interrupt mode IO operation
Transmit in master/host SMBUS mode an amount of data in non-blocking mode using
HAL_SMBUS_Master_Transmit_IT()
At transmission end of transfer HAL_SMBUS_MasterTxCpltCallback() is
executed and user can add his own code by customization of function pointer
HAL_SMBUS_MasterTxCpltCallback()
Receive in master/host SMBUS mode an amount of data in non-blocking mode using
HAL_SMBUS_Master_Receive_IT()
At reception end of transfer HAL_SMBUS_MasterRxCpltCallback() is executed
and user can add his own code by customization of function pointer
HAL_SMBUS_MasterRxCpltCallback()
Abort a master/host SMBUS process communication with Interrupt using
HAL_SMBUS_Master_Abort_IT()
The associated previous transfer callback is called at the end of abort process
mean HAL_SMBUS_MasterTxCpltCallback() in case of previous state was
master transmit
mean HAL_SMBUS_MasterRxCpltCallback() in case of previous state was
master receive
Enable/disable the Address listen mode in slave/device or host/slave SMBUS mode
using HAL_SMBUS_EnableListen_IT() HAL_SMBUS_DisableListen_IT()
When address slave/device SMBUS match, HAL_SMBUS_AddrCallback() is
executed and user can add his own code to check the Address Match Code and
the transmission direction request by master/host (Write/Read).
At Listen mode end HAL_SMBUS_ListenCpltCallback() is executed and user can
add his own code by customization of function pointer
HAL_SMBUS_ListenCpltCallback()
Transmit in slave/device SMBUS mode an amount of data in non-blocking mode using
HAL_SMBUS_Slave_Transmit_IT()
At transmission end of transfer HAL_SMBUS_SlaveTxCpltCallback() is executed
and user can add his own code by customization of function pointer
HAL_SMBUS_SlaveTxCpltCallback()
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Receive in slave/device SMBUS mode an amount of data in non-blocking mode using
HAL_SMBUS_Slave_Receive_IT()
At reception end of transfer HAL_SMBUS_SlaveRxCpltCallback() is executed
and user can add his own code by customization of function pointer
HAL_SMBUS_SlaveRxCpltCallback()
Enable/Disable the SMBUS alert mode using HAL_SMBUS_EnableAlert_IT()
HAL_SMBUS_DisableAlert_IT()
When SMBUS Alert is generated HAL_SMBUS_ErrorCallback() is executed and
user can add his own code by customization of function pointer
HAL_SMBUS_ErrorCallback() to check the Alert Error Code using function
HAL_SMBUS_GetError()
Get HAL state machine or error values using HAL_SMBUS_GetState() or
HAL_SMBUS_GetError()
In case of transfer Error, HAL_SMBUS_ErrorCallback() function is executed and user
can add his own code by customization of function pointer
HAL_SMBUS_ErrorCallback() to check the Error Code using function
HAL_SMBUS_GetError()
SMBUS HAL driver macros list
Below the list of most used macros in SMBUS HAL driver.
__HAL_SMBUS_ENABLE: Enable the SMBUS peripheral
__HAL_SMBUS_DISABLE: Disable the SMBUS peripheral
__HAL_SMBUS_GET_FLAG: Check whether the specified SMBUS flag is set or not
__HAL_SMBUS_CLEAR_FLAG: Clear the specified SMBUS pending flag
__HAL_SMBUS_ENABLE_IT: Enable the specified SMBUS interrupt
__HAL_SMBUS_DISABLE_IT: Disable the specified SMBUS interrupt
You can refer to the SMBUS HAL driver header file for more useful macros
43.2.2 Initialization and de-initialization functions
This subsection provides a set of functions allowing to initialize and deinitialize the
SMBUSx peripheral:
User must Implement HAL_SMBUS_MspInit() function in which he configures all
related peripherals resources (CLOCK, GPIO, IT and NVIC ).
Call the function HAL_SMBUS_Init() to configure the selected device with the selected
configuration:
Clock Timing
Bus Timeout
Analog Filer mode
Own Address 1
Addressing mode (Master, Slave)
Dual Addressing mode
Own Address 2
Own Address 2 Mask
General call mode
Nostretch mode
Packet Error Check mode
Peripheral mode
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Call the function HAL_SMBUS_DeInit() to restore the default configuration of the
selected SMBUSx peripheral.
This section contains the following APIs:
HAL_SMBUS_Init()
HAL_SMBUS_DeInit()
HAL_SMBUS_MspInit()
HAL_SMBUS_MspDeInit()
43.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the SMBUS data transfers.
1. Blocking mode function to check if device is ready for usage is :
HAL_SMBUS_IsDeviceReady()
2. There is only one mode of transfer:
Non-Blocking mode : The communication is performed using Interrupts. These
functions return the status of the transfer startup. The end of the data processing
will be indicated through the dedicated SMBUS IRQ when using Interrupt mode.
3. Non-Blocking mode functions with Interrupt are :
HAL_SMBUS_Master_Transmit_IT()
HAL_SMBUS_Master_Receive_IT()
HAL_SMBUS_Slave_Transmit_IT()
HAL_SMBUS_Slave_Receive_IT()
HAL_SMBUS_EnableListen_IT() or alias HAL_SMBUS_EnableListen_IT()
HAL_SMBUS_DisableListen_IT()
HAL_SMBUS_EnableAlert_IT()
HAL_SMBUS_DisableAlert_IT()
4. A set of Transfer Complete Callbacks are provided in non-Blocking mode:
HAL_SMBUS_MasterTxCpltCallback()
HAL_SMBUS_MasterRxCpltCallback()
HAL_SMBUS_SlaveTxCpltCallback()
HAL_SMBUS_SlaveRxCpltCallback()
HAL_SMBUS_AddrCallback()
HAL_SMBUS_ListenCpltCallback()
HAL_SMBUS_ErrorCallback()
This section contains the following APIs:
HAL_SMBUS_Master_Transmit_IT()
HAL_SMBUS_Master_Receive_IT()
HAL_SMBUS_Master_Abort_IT()
HAL_SMBUS_Slave_Transmit_IT()
HAL_SMBUS_Slave_Receive_IT()
HAL_SMBUS_EnableListen_IT()
HAL_SMBUS_DisableListen_IT()
HAL_SMBUS_EnableAlert_IT()
HAL_SMBUS_DisableAlert_IT()
HAL_SMBUS_IsDeviceReady()
43.2.4 Peripheral State and Errors functions
This subsection permits to get in run-time the status of the peripheral and the data flow.
This section contains the following APIs:
HAL_SMBUS_GetState()
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HAL_SMBUS_GetError()
43.2.5 Detailed description of functions
HAL_SMBUS_Init
Function name
HAL_StatusTypeDef HAL_SMBUS_Init
(SMBUS_HandleTypeDef * hsmbus)
Function description
Initialize the SMBUS according to the specified parameters in the
SMBUS_InitTypeDef and initialize the associated handle.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
HAL: status
HAL_SMBUS_DeInit
Function name
HAL_StatusTypeDef HAL_SMBUS_DeInit
(SMBUS_HandleTypeDef * hsmbus)
Function description
DeInitialize the SMBUS peripheral.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
HAL: status
HAL_SMBUS_MspInit
Function name
void HAL_SMBUS_MspInit (SMBUS_HandleTypeDef *
hsmbus)
Function description
Initialize the SMBUS MSP.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_MspDeInit
Function name
void HAL_SMBUS_MspDeInit (SMBUS_HandleTypeDef *
hsmbus)
Function description
DeInitialize the SMBUS MSP.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
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HAL_SMBUS_IsDeviceReady
Function name
HAL_StatusTypeDef HAL_SMBUS_IsDeviceReady
(SMBUS_HandleTypeDef * hsmbus, uint16_t DevAddress,
uint32_t Trials, uint32_t Timeout)
Function description
Check if target device is ready for communication.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
Trials: Number of trials
Timeout: Timeout duration
Return values
HAL: status
HAL_SMBUS_Master_Transmit_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_Master_Transmit_IT
(SMBUS_HandleTypeDef * hsmbus, uint16_t DevAddress,
uint8_t * pData, uint16_t Size, uint32_t XferOptions)
Function description
Transmit in master/host SMBUS mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of SMBUS
XferOptions definition
Return values
HAL: status
HAL_SMBUS_Master_Receive_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_Master_Receive_IT
(SMBUS_HandleTypeDef * hsmbus, uint16_t DevAddress,
uint8_t * pData, uint16_t Size, uint32_t XferOptions)
Function description
Receive in master/host SMBUS mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
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pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of SMBUS
XferOptions definition
Return values
HAL: status
HAL_SMBUS_Master_Abort_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_Master_Abort_IT
(SMBUS_HandleTypeDef * hsmbus, uint16_t DevAddress)
Function description
Abort a master/host SMBUS process communication with
Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
DevAddress: Target device address: The device 7 bits
address value in datasheet must be shift at right before call
interface
Return values
HAL: status
Notes
This abort can be called only if state is ready
HAL_SMBUS_Slave_Transmit_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_Slave_Transmit_IT
(SMBUS_HandleTypeDef * hsmbus, uint8_t * pData, uint16_t
Size, uint32_t XferOptions)
Function description
Transmit in slave/device SMBUS mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
pData: Pointer to data buffer
Size: Amount of data to be sent
XferOptions: Options of Transfer, value of SMBUS
XferOptions definition
Return values
HAL: status
HAL_SMBUS_Slave_Receive_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_Slave_Receive_IT
(SMBUS_HandleTypeDef * hsmbus, uint8_t * pData, uint16_t
Size, uint32_t XferOptions)
Function description
Receive in slave/device SMBUS mode an amount of data in non-
blocking mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
pData: Pointer to data buffer
Size: Amount of data to be sent
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XferOptions: Options of Transfer, value of SMBUS
XferOptions definition
Return values
HAL: status
HAL_SMBUS_EnableAlert_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_EnableAlert_IT
(SMBUS_HandleTypeDef * hsmbus)
Function description
Enable the SMBUS alert mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUSx peripheral.
Return values
HAL: status
HAL_SMBUS_DisableAlert_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_DisableAlert_IT
(SMBUS_HandleTypeDef * hsmbus)
Function description
Disable the SMBUS alert mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUSx peripheral.
Return values
HAL: status
HAL_SMBUS_EnableListen_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_EnableListen_IT
(SMBUS_HandleTypeDef * hsmbus)
Function description
Enable the Address listen mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
HAL: status
HAL_SMBUS_DisableListen_IT
Function name
HAL_StatusTypeDef HAL_SMBUS_DisableListen_IT
(SMBUS_HandleTypeDef * hsmbus)
Function description
Disable the Address listen mode with Interrupt.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
HAL: status
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HAL_SMBUS_EV_IRQHandler
Function name
void HAL_SMBUS_EV_IRQHandler (SMBUS_HandleTypeDef *
hsmbus)
Function description
Handle SMBUS event interrupt request.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_ER_IRQHandler
Function name
void HAL_SMBUS_ER_IRQHandler (SMBUS_HandleTypeDef *
hsmbus)
Function description
Handle SMBUS error interrupt request.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_MasterTxCpltCallback
Function name
void HAL_SMBUS_MasterTxCpltCallback
(SMBUS_HandleTypeDef * hsmbus)
Function description
Master Tx Transfer completed callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_MasterRxCpltCallback
Function name
void HAL_SMBUS_MasterRxCpltCallback
(SMBUS_HandleTypeDef * hsmbus)
Function description
Master Rx Transfer completed callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_SlaveTxCpltCallback
Function name
void HAL_SMBUS_SlaveTxCpltCallback
(SMBUS_HandleTypeDef * hsmbus)
Function description
Slave Tx Transfer completed callback.
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Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_SlaveRxCpltCallback
Function name
void HAL_SMBUS_SlaveRxCpltCallback
(SMBUS_HandleTypeDef * hsmbus)
Function description
Slave Rx Transfer completed callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_AddrCallback
Function name
void HAL_SMBUS_AddrCallback (SMBUS_HandleTypeDef *
hsmbus, uint8_t TransferDirection, uint16_t AddrMatchCode)
Function description
Slave Address Match callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
TransferDirection: Master request Transfer Direction
(Write/Read)
AddrMatchCode: Address Match Code
Return values
None
HAL_SMBUS_ListenCpltCallback
Function name
void HAL_SMBUS_ListenCpltCallback
(SMBUS_HandleTypeDef * hsmbus)
Function description
Listen Complete callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
HAL_SMBUS_ErrorCallback
Function name
void HAL_SMBUS_ErrorCallback (SMBUS_HandleTypeDef *
hsmbus)
Function description
SMBUS error callback.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
None
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HAL_SMBUS_GetState
Function name
uint32_t HAL_SMBUS_GetState (SMBUS_HandleTypeDef *
hsmbus)
Function description
Return the SMBUS handle state.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
HAL: state
HAL_SMBUS_GetError
Function name
uint32_t HAL_SMBUS_GetError (SMBUS_HandleTypeDef *
hsmbus)
Function description
Return the SMBUS error code.
Parameters
hsmbus: Pointer to a SMBUS_HandleTypeDef structure that
contains the configuration information for the specified
SMBUS.
Return values
SMBUS: Error Code
43.3 SMBUS Firmware driver defines
43.3.1 SMBUS
SMBUS addressing mode
SMBUS_ADDRESSINGMODE_7BIT
SMBUS_ADDRESSINGMODE_10BIT
SMBUS Analog Filter
SMBUS_ANALOGFILTER_ENABLE
SMBUS_ANALOGFILTER_DISABLE
SMBUS dual addressing mode
SMBUS_DUALADDRESS_DISABLE
SMBUS_DUALADDRESS_ENABLE
SMBUS Error Code definition
HAL_SMBUS_ERROR_NONE
No error
HAL_SMBUS_ERROR_BERR
BERR error
HAL_SMBUS_ERROR_ARLO
ARLO error
HAL_SMBUS_ERROR_ACKF
ACKF error
HAL_SMBUS_ERROR_OVR
OVR error
HAL_SMBUS_ERROR_HALTIMEOUT
Timeout error
HAL_SMBUS_ERROR_BUSTIMEOUT
Bus Timeout error
HAL_SMBUS_ERROR_ALERT
Alert error
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HAL_SMBUS_ERROR_PECERR
PEC error
SMBUS Exported Macros
__HAL_SMBUS_RESET_HANDLE_STATE
Description:
Reset SMBUS handle state.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
Return value:
None
__HAL_SMBUS_ENABLE_IT
Description:
Enable the specified SMBUS interrupts.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
__INTERRUPT__: specifies the
interrupt source to enable. This
parameter can be one of the following
values:
SMBUS_IT_ERRI Errors interrupt
enable
SMBUS_IT_TCI Transfer complete
interrupt enable
SMBUS_IT_STOPI STOP
detection interrupt enable
SMBUS_IT_NACKI NACK
received interrupt enable
SMBUS_IT_ADDRI Address
match interrupt enable
SMBUS_IT_RXI RX interrupt
enable
SMBUS_IT_TXI TX interrupt
enable
Return value:
None
__HAL_SMBUS_DISABLE_IT
Description:
Disable the specified SMBUS
interrupts.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
__INTERRUPT__: specifies the
interrupt source to disable. This
parameter can be one of the following
values:
SMBUS_IT_ERRI Errors interrupt
enable
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SMBUS_IT_TCI Transfer complete
interrupt enable
SMBUS_IT_STOPI STOP
detection interrupt enable
SMBUS_IT_NACKI NACK
received interrupt enable
SMBUS_IT_ADDRI Address
match interrupt enable
SMBUS_IT_RXI RX interrupt
enable
SMBUS_IT_TXI TX interrupt
enable
Return value:
None
__HAL_SMBUS_GET_IT_SOURCE
Description:
Check whether the specified SMBUS
interrupt source is enabled or not.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
__INTERRUPT__: specifies the
SMBUS interrupt source to check. This
parameter can be one of the following
values:
SMBUS_IT_ERRI Errors interrupt
enable
SMBUS_IT_TCI Transfer complete
interrupt enable
SMBUS_IT_STOPI STOP
detection interrupt enable
SMBUS_IT_NACKI NACK
received interrupt enable
SMBUS_IT_ADDRI Address
match interrupt enable
SMBUS_IT_RXI RX interrupt
enable
SMBUS_IT_TXI TX interrupt
enable
Return value:
The: new state of __IT__ (TRUE or
FALSE).
SMBUS_FLAG_MASK
Description:
Check whether the specified SMBUS
flag is set or not.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
__FLAG__: specifies the flag to check.
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This parameter can be one of the
following values:
SMBUS_FLAG_TXE Transmit
data register empty
SMBUS_FLAG_TXIS Transmit
interrupt status
SMBUS_FLAG_RXNE Receive
data register not empty
SMBUS_FLAG_ADDR Address
matched (slave mode)
SMBUS_FLAG_AF NACK
received flag
SMBUS_FLAG_STOPF STOP
detection flag
SMBUS_FLAG_TC Transfer
complete (master mode)
SMBUS_FLAG_TCR Transfer
complete reload
SMBUS_FLAG_BERR Bus error
SMBUS_FLAG_ARLO Arbitration
lost
SMBUS_FLAG_OVR
Overrun/Underrun
SMBUS_FLAG_PECERR PEC
error in reception
SMBUS_FLAG_TIMEOUT
Timeout or Tlow detection flag
SMBUS_FLAG_ALERT SMBus
alert
SMBUS_FLAG_BUSY Bus busy
SMBUS_FLAG_DIR Transfer
direction (slave mode)
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_SMBUS_GET_FLAG
__HAL_SMBUS_CLEAR_FLAG
Description:
Clear the SMBUS pending flags which
are cleared by writing 1 in a specific bit.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
__FLAG__: specifies the flag to clear.
This parameter can be any combination
of the following values:
SMBUS_FLAG_ADDR Address
matched (slave mode)
SMBUS_FLAG_AF NACK
received flag
SMBUS_FLAG_STOPF STOP
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detection flag
SMBUS_FLAG_BERR Bus error
SMBUS_FLAG_ARLO Arbitration
lost
SMBUS_FLAG_OVR
Overrun/Underrun
SMBUS_FLAG_PECERR PEC
error in reception
SMBUS_FLAG_TIMEOUT
Timeout or Tlow detection flag
SMBUS_FLAG_ALERT SMBus
alert
Return value:
None
__HAL_SMBUS_ENABLE
Description:
Enable the specified SMBUS
peripheral.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
Return value:
None
__HAL_SMBUS_DISABLE
Description:
Disable the specified SMBUS
peripheral.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
Return value:
None
__HAL_SMBUS_GENERATE_NACK
Description:
Generate a Non-Acknowledge SMBUS
peripheral in Slave mode.
Parameters:
__HANDLE__: specifies the SMBUS
Handle.
Return value:
None
SMBUS Flag definition
SMBUS_FLAG_TXE
SMBUS_FLAG_TXIS
SMBUS_FLAG_RXNE
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SMBUS_FLAG_ADDR
SMBUS_FLAG_AF
SMBUS_FLAG_STOPF
SMBUS_FLAG_TC
SMBUS_FLAG_TCR
SMBUS_FLAG_BERR
SMBUS_FLAG_ARLO
SMBUS_FLAG_OVR
SMBUS_FLAG_PECERR
SMBUS_FLAG_TIMEOUT
SMBUS_FLAG_ALERT
SMBUS_FLAG_BUSY
SMBUS_FLAG_DIR
SMBUS general call addressing mode
SMBUS_GENERALCALL_DISABLE
SMBUS_GENERALCALL_ENABLE
SMBUS Interrupt configuration definition
SMBUS_IT_ERRI
SMBUS_IT_TCI
SMBUS_IT_STOPI
SMBUS_IT_NACKI
SMBUS_IT_ADDRI
SMBUS_IT_RXI
SMBUS_IT_TXI
SMBUS_IT_TX
SMBUS_IT_RX
SMBUS_IT_ALERT
SMBUS_IT_ADDR
SMBUS nostretch mode
SMBUS_NOSTRETCH_DISABLE
SMBUS_NOSTRETCH_ENABLE
SMBUS ownaddress2 masks
SMBUS_OA2_NOMASK
SMBUS_OA2_MASK01
SMBUS_OA2_MASK02
SMBUS_OA2_MASK03
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SMBUS_OA2_MASK04
SMBUS_OA2_MASK05
SMBUS_OA2_MASK06
SMBUS_OA2_MASK07
SMBUS packet error check mode
SMBUS_PEC_DISABLE
SMBUS_PEC_ENABLE
SMBUS peripheral mode
SMBUS_PERIPHERAL_MODE_SMBUS_HOST
SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE
SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE_ARP
SMBUS ReloadEndMode definition
SMBUS_SOFTEND_MODE
SMBUS_RELOAD_MODE
SMBUS_AUTOEND_MODE
SMBUS_SENDPEC_MODE
SMBUS StartStopMode definition
SMBUS_NO_STARTSTOP
SMBUS_GENERATE_STOP
SMBUS_GENERATE_START_READ
SMBUS_GENERATE_START_WRITE
SMBUS XferOptions definition
SMBUS_FIRST_FRAME
SMBUS_NEXT_FRAME
SMBUS_FIRST_AND_LAST_FRAME_NO_PEC
SMBUS_LAST_FRAME_NO_PEC
SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC
SMBUS_LAST_FRAME_WITH_PEC
SMBUS_OTHER_FRAME_NO_PEC
SMBUS_OTHER_FRAME_WITH_PEC
SMBUS_OTHER_AND_LAST_FRAME_NO_PEC
SMBUS_OTHER_AND_LAST_FRAME_WITH_PEC
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44 HAL SPI Generic Driver
44.1 SPI Firmware driver registers structures
44.1.1 SPI_InitTypeDef
Data Fields
uint32_t Mode
uint32_t Direction
uint32_t DataSize
uint32_t CLKPolarity
uint32_t CLKPhase
uint32_t NSS
uint32_t BaudRatePrescaler
uint32_t FirstBit
uint32_t TIMode
uint32_t CRCCalculation
uint32_t CRCPolynomial
Field Documentation
uint32_t SPI_InitTypeDef::Mode
Specifies the SPI operating mode. This parameter can be a value of SPI_mode
uint32_t SPI_InitTypeDef::Direction
Specifies the SPI Directional mode state. This parameter can be a value of
SPI_Direction_mode
uint32_t SPI_InitTypeDef::DataSize
Specifies the SPI data size. This parameter can be a value of SPI_data_size
uint32_t SPI_InitTypeDef::CLKPolarity
Specifies the serial clock steady state. This parameter can be a value of
SPI_Clock_Polarity
uint32_t SPI_InitTypeDef::CLKPhase
Specifies the clock active edge for the bit capture. This parameter can be a value of
SPI_Clock_Phase
uint32_t SPI_InitTypeDef::NSS
Specifies whether the NSS signal is managed by hardware (NSS pin) or by software
using the SSI bit. This parameter can be a value of SPI_Slave_Select_management
uint32_t SPI_InitTypeDef::BaudRatePrescaler
Specifies the Baud Rate prescaler value which will be used to configure the transmit
and receive SCK clock. This parameter can be a value of SPI_BaudRate_Prescaler
Note:The communication clock is derived from the master clock. The slave clock does
not need to be set
uint32_t SPI_InitTypeDef::FirstBit
Specifies whether data transfers start from MSB or LSB bit. This parameter can be a
value of SPI_MSB_LSB_transmission
uint32_t SPI_InitTypeDef::TIMode
Specifies if the TI mode is enabled or not. This parameter can be a value of
SPI_TI_mode
uint32_t SPI_InitTypeDef::CRCCalculation
Specifies if the CRC calculation is enabled or not. This parameter can be a value of
SPI_CRC_Calculation
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uint32_t SPI_InitTypeDef::CRCPolynomial
Specifies the polynomial used for the CRC calculation. This parameter must be a
number between Min_Data = 0 and Max_Data = 65535
44.1.2 __SPI_HandleTypeDef
Data Fields
SPI_TypeDef * Instance
SPI_InitTypeDef Init
uint8_t * pTxBuffPtr
uint16_t TxXferSize
__IO uint16_t TxXferCount
uint8_t * pRxBuffPtr
uint16_t RxXferSize
__IO uint16_t RxXferCount
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
void(* RxISR
void(* TxISR
HAL_LockTypeDef Lock
__IO HAL_SPI_StateTypeDef State
__IO uint32_t ErrorCode
Field Documentation
SPI_TypeDef* __SPI_HandleTypeDef::Instance
SPI registers base address
SPI_InitTypeDef __SPI_HandleTypeDef::Init
SPI communication parameters
uint8_t* __SPI_HandleTypeDef::pTxBuffPtr
Pointer to SPI Tx transfer Buffer
uint16_t __SPI_HandleTypeDef::TxXferSize
SPI Tx transfer size
__IO uint16_t __SPI_HandleTypeDef::TxXferCount
SPI Tx Transfer Counter
uint8_t* __SPI_HandleTypeDef::pRxBuffPtr
Pointer to SPI Rx transfer Buffer
uint16_t __SPI_HandleTypeDef::RxXferSize
SPI Rx transfer size
__IO uint16_t __SPI_HandleTypeDef::RxXferCount
SPI Rx Transfer Counter
DMA_HandleTypeDef* __SPI_HandleTypeDef::hdmatx
SPI Tx DMA handle parameters
DMA_HandleTypeDef* __SPI_HandleTypeDef::hdmarx
SPI Rx DMA handle parameters
void(* __SPI_HandleTypeDef::RxISR)(struct __SPI_HandleTypeDef *hspi)
function pointer on Rx ISR
void(* __SPI_HandleTypeDef::TxISR)(struct __SPI_HandleTypeDef *hspi)
function pointer on Tx ISR
HAL_LockTypeDef __SPI_HandleTypeDef::Lock
SPI locking object
__IO HAL_SPI_StateTypeDef __SPI_HandleTypeDef::State
SPI communication state
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__IO uint32_t __SPI_HandleTypeDef::ErrorCode
SPI Error code
44.2 SPI Firmware driver API description
44.2.1 How to use this driver
The SPI HAL driver can be used as follows:
1. Declare a SPI_HandleTypeDef handle structure, for example: SPI_HandleTypeDef
hspi;
2. Initialize the SPI low level resources by implementing the HAL_SPI_MspInit ()API:
a. Enable the SPIx interface clock
b. SPI pins configuration
Enable the clock for the SPI GPIOs
Configure these SPI pins as alternate function push-pull
c. NVIC configuration if you need to use interrupt process
Configure the SPIx interrupt priority
Enable the NVIC SPI IRQ handle
d. DMA Configuration if you need to use DMA process
Declare a DMA_HandleTypeDef handle structure for the transmit or receive
Channel
Enable the DMAx clock
Configure the DMA handle parameters
Configure the DMA Tx or Rx Channel
Associate the initilalized hdma_tx(or _rx) handle to the hspi DMA Tx (or Rx)
handle
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx or Rx Channel
3. Program the Mode, Direction , Data size, Baudrate Prescaler, NSS management,
Clock polarity and phase, FirstBit and CRC configuration in the hspi Init structure.
4. Initialize the SPI registers by calling the HAL_SPI_Init() API:
This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
by calling the customed HAL_SPI_MspInit() API.
Circular mode restriction:
1. The DMA circular mode cannot be used when the SPI is configured in these modes:
a. Master 2Lines RxOnly
b. Master 1Line Rx
2. The CRC feature is not managed when the DMA circular mode is enabled
3. When the SPI DMA Pause/Stop features are used, we must use the following APIs the
HAL_SPI_DMAPause()/ HAL_SPI_DMAStop() only under the SPI callbacks @note
4. TX/RX processes are HAL_SPI_TransmitReceive(), HAL_SPI_TransmitReceive_IT()
and HAL_SPI_TransmitReceive_DMA()
5. RX processes are HAL_SPI_Receive(), HAL_SPI_Receive_IT() and
HAL_SPI_Receive_DMA()
6. TX processes are HAL_SPI_Transmit(), HAL_SPI_Transmit_IT() and
HAL_SPI_Transmit_DMA()
44.2.2 Initialization and de-initialization functions
This subsection provides a set of functions allowing to initialize and de-initialiaze the SPIx
peripheral:
User must implement HAL_SPI_MspInit() function in which he configures all related
peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
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Call the function HAL_SPI_Init() to configure the selected device with the selected
configuration:
Mode
Direction
Data Size
Clock Polarity and Phase
NSS Management
BaudRate Prescaler
FirstBit
TIMode
CRC Calculation
CRC Polynomial if CRC enabled
Call the function HAL_SPI_DeInit() to restore the default configuration of the selected
SPIx periperal.
This section contains the following APIs:
HAL_SPI_Init()
HAL_SPI_DeInit()
HAL_SPI_MspInit()
HAL_SPI_MspDeInit()
44.2.3 IO operation functions
The SPI supports master and slave mode :
1. There are two modes of transfer:
Blocking mode: The communication is performed in polling mode. The HAL
status of all data processing is returned by the same function after finishing
transfer.
No-Blocking mode: The communication is performed using Interrupts or DMA,
These APIs return the HAL status. The end of the data processing will be
indicated through the dedicated SPI IRQ when using Interrupt mode or the DMA
IRQ when using DMA mode. The HAL_SPI_TxCpltCallback(),
HAL_SPI_RxCpltCallback() and HAL_SPI_TxRxCpltCallback() user callbacks will
be executed respectivelly at the end of the transmit or Receive process The
HAL_SPI_ErrorCallback()user callback will be executed when a communication
error is detected
2. Blocking mode APIs are :
HAL_SPI_Transmit()in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_Receive() in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_TransmitReceive() in full duplex mode
3. Non Blocking mode API's with Interrupt are :
HAL_SPI_Transmit_IT()in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_Receive_IT() in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_TransmitReceive_IT()in full duplex mode
HAL_SPI_IRQHandler()
4. Non Blocking mode functions with DMA are :
HAL_SPI_Transmit_DMA()in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_Receive_DMA() in 1Line (simplex) and 2Lines (full duplex) mode
HAL_SPI_TransmitReceive_DMA() in full duplex mode
5. A set of Transfer Complete Callbacks are provided in non Blocking mode:
HAL_SPI_TxCpltCallback()
HAL_SPI_RxCpltCallback()
HAL_SPI_TxRxCpltCallback()
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HAL_SPI_TxHalfCpltCallback()
HAL_SPI_RxHalfCpltCallback()
HAL_SPI_TxRxHalfCpltCallback()
HAL_SPI_ErrorCallback()
This section contains the following APIs:
HAL_SPI_Transmit()
HAL_SPI_Receive()
HAL_SPI_TransmitReceive()
HAL_SPI_Transmit_IT()
HAL_SPI_Receive_IT()
HAL_SPI_TransmitReceive_IT()
HAL_SPI_Transmit_DMA()
HAL_SPI_Receive_DMA()
HAL_SPI_TransmitReceive_DMA()
HAL_SPI_DMAPause()
HAL_SPI_DMAResume()
HAL_SPI_DMAStop()
HAL_SPI_IRQHandler()
HAL_SPI_TxCpltCallback()
HAL_SPI_RxCpltCallback()
HAL_SPI_TxRxCpltCallback()
HAL_SPI_TxHalfCpltCallback()
HAL_SPI_RxHalfCpltCallback()
HAL_SPI_TxRxHalfCpltCallback()
HAL_SPI_ErrorCallback()
44.2.4 Peripheral State and Errors functions
This subsection provides a set of functions allowing to control the SPI.
HAL_SPI_GetState() API can be helpful to check in run-time the state of the SPI
peripheral
HAL_SPI_GetError() check in run-time Errors occurring during communication
This section contains the following APIs:
HAL_SPI_GetState()
HAL_SPI_GetError()
44.2.5 Detailed description of functions
HAL_SPI_Init
Function name
HAL_StatusTypeDef HAL_SPI_Init (SPI_HandleTypeDef * hspi)
Function description
Initializes the SPI according to the specified parameters in the
SPI_InitTypeDef and create the associated handle.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
HAL: status
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HAL_SPI_DeInit
Function name
HAL_StatusTypeDef HAL_SPI_DeInit (SPI_HandleTypeDef *
hspi)
Function description
DeInitializes the SPI peripheral.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
HAL: status
HAL_SPI_MspInit
Function name
void HAL_SPI_MspInit (SPI_HandleTypeDef * hspi)
Function description
SPI MSP Init.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_MspDeInit
Function name
void HAL_SPI_MspDeInit (SPI_HandleTypeDef * hspi)
Function description
SPI MSP DeInit.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_Transmit
Function name
HAL_StatusTypeDef HAL_SPI_Transmit (SPI_HandleTypeDef *
hspi, uint8_t * pData, uint16_t Size, uint32_t Timeout)
Function description
Transmit an amount of data in blocking mode.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_SPI_Receive
Function name
HAL_StatusTypeDef HAL_SPI_Receive (SPI_HandleTypeDef *
hspi, uint8_t * pData, uint16_t Size, uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
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Timeout: Timeout duration
Return values
HAL: status
HAL_SPI_TransmitReceive
Function name
HAL_StatusTypeDef HAL_SPI_TransmitReceive
(SPI_HandleTypeDef * hspi, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size, uint32_t Timeout)
Function description
Transmit and Receive an amount of data in blocking mode.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pTxData: pointer to transmission data buffer
pRxData: pointer to reception data buffer to be
Size: amount of data to be sent
Timeout: Timeout duration
Return values
HAL: status
HAL_SPI_Transmit_IT
Function name
HAL_StatusTypeDef HAL_SPI_Transmit_IT
(SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size)
Function description
Transmit an amount of data in no-blocking mode with Interrupt.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
Return values
HAL: status
HAL_SPI_Receive_IT
Function name
HAL_StatusTypeDef HAL_SPI_Receive_IT
(SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in no-blocking mode with Interrupt.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
Return values
HAL: status
HAL_SPI_TransmitReceive_IT
Function name
HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT
(SPI_HandleTypeDef * hspi, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size)
Function description
Transmit and Receive an amount of data in no-blocking mode with
Interrupt.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
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the configuration information for SPI module.
pTxData: pointer to transmission data buffer
pRxData: pointer to reception data buffer to be
Size: amount of data to be sent
Return values
HAL: status
HAL_SPI_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_SPI_Transmit_DMA
(SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size)
Function description
Transmit an amount of data in no-blocking mode with DMA.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
Return values
HAL: status
HAL_SPI_Receive_DMA
Function name
HAL_StatusTypeDef HAL_SPI_Receive_DMA
(SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in no-blocking mode with DMA.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pData: pointer to data buffer
Size: amount of data to be sent
Return values
HAL: status
Notes
When the CRC feature is enabled the pData Length must be
Size + 1.
HAL_SPI_TransmitReceive_DMA
Function name
HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA
(SPI_HandleTypeDef * hspi, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size)
Function description
Transmit and Receive an amount of data in no-blocking mode with
DMA.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
pTxData: pointer to transmission data buffer
pRxData: pointer to reception data buffer
Size: amount of data to be sent
Return values
HAL: status
Notes
When the CRC feature is enabled the pRxData Length must
be Size + 1
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HAL_SPI_DMAPause
Function name
HAL_StatusTypeDef HAL_SPI_DMAPause
(SPI_HandleTypeDef * hspi)
Function description
Pauses the DMA Transfer.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for the specified SPI module.
Return values
HAL: status
HAL_SPI_DMAResume
Function name
HAL_StatusTypeDef HAL_SPI_DMAResume
(SPI_HandleTypeDef * hspi)
Function description
Resumes the DMA Transfer.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for the specified SPI module.
Return values
HAL: status
HAL_SPI_DMAStop
Function name
HAL_StatusTypeDef HAL_SPI_DMAStop (SPI_HandleTypeDef
* hspi)
Function description
Stops the DMA Transfer.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for the specified SPI module.
Return values
HAL: status
HAL_SPI_IRQHandler
Function name
void HAL_SPI_IRQHandler (SPI_HandleTypeDef * hspi)
Function description
This function handles SPI interrupt request.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
HAL: status
HAL_SPI_TxCpltCallback
Function name
void HAL_SPI_TxCpltCallback (SPI_HandleTypeDef * hspi)
Function description
Tx Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
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HAL_SPI_RxCpltCallback
Function name
void HAL_SPI_RxCpltCallback (SPI_HandleTypeDef * hspi)
Function description
Rx Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_TxRxCpltCallback
Function name
void HAL_SPI_TxRxCpltCallback (SPI_HandleTypeDef * hspi)
Function description
Tx and Rx Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_ErrorCallback
Function name
void HAL_SPI_ErrorCallback (SPI_HandleTypeDef * hspi)
Function description
SPI error callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_TxHalfCpltCallback
Function name
void HAL_SPI_TxHalfCpltCallback (SPI_HandleTypeDef * hspi)
Function description
Tx Half Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_RxHalfCpltCallback
Function name
void HAL_SPI_RxHalfCpltCallback (SPI_HandleTypeDef *
hspi)
Function description
Rx Half Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
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HAL_SPI_TxRxHalfCpltCallback
Function name
void HAL_SPI_TxRxHalfCpltCallback (SPI_HandleTypeDef *
hspi)
Function description
Tx and Rx Transfer completed callbacks.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
None
HAL_SPI_GetState
Function name
HAL_SPI_StateTypeDef HAL_SPI_GetState
(SPI_HandleTypeDef * hspi)
Function description
Return the SPI state.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
SPI: state
HAL_SPI_GetError
Function name
uint32_t HAL_SPI_GetError (SPI_HandleTypeDef * hspi)
Function description
Return the SPI error code.
Parameters
hspi: pointer to a SPI_HandleTypeDef structure that contains
the configuration information for SPI module.
Return values
SPI: Error Code
44.3 SPI Firmware driver defines
44.3.1 SPI
SPI BaudRate Prescaler
SPI_BAUDRATEPRESCALER_2
SPI_BAUDRATEPRESCALER_4
SPI_BAUDRATEPRESCALER_8
SPI_BAUDRATEPRESCALER_16
SPI_BAUDRATEPRESCALER_32
SPI_BAUDRATEPRESCALER_64
SPI_BAUDRATEPRESCALER_128
SPI_BAUDRATEPRESCALER_256
SPI Clock Phase
SPI_PHASE_1EDGE
SPI_PHASE_2EDGE
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SPI Clock Polarity
SPI_POLARITY_LOW
SPI_POLARITY_HIGH
SPI CRC Calculation
SPI_CRCCALCULATION_DISABLE
SPI_CRCCALCULATION_ENABLE
SPI data size
SPI_DATASIZE_8BIT
SPI_DATASIZE_16BIT
SPI Direction mode
SPI_DIRECTION_2LINES
SPI_DIRECTION_2LINES_RXONLY
SPI_DIRECTION_1LINE
SPI Error Code
HAL_SPI_ERROR_NONE
No error
HAL_SPI_ERROR_MODF
MODF error
HAL_SPI_ERROR_CRC
CRC error
HAL_SPI_ERROR_OVR
OVR error
HAL_SPI_ERROR_FRE
FRE error
HAL_SPI_ERROR_DMA
DMA transfer error
HAL_SPI_ERROR_FLAG
Flag: RXNE,TXE, BSY
SPI Exported Macros
__HAL_SPI_RESET_HANDLE_STATE
Description:
Reset SPI handle state.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_ENABLE_IT
Description:
Enable the specified SPI interrupts.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
__INTERRUPT__: specifies the interrupt
source to enable. This parameter can be
one of the following values:
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SPI_IT_TXE: Tx buffer empty interrupt
enable
SPI_IT_RXNE: RX buffer not empty
interrupt enable
SPI_IT_ERR: Error interrupt enable
Return value:
None
__HAL_SPI_DISABLE_IT
Description:
Disable the specified SPI interrupts.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
__INTERRUPT__: specifies the interrupt
source to disable. This parameter can be
one of the following values:
SPI_IT_TXE: Tx buffer empty interrupt
enable
SPI_IT_RXNE: RX buffer not empty
interrupt enable
SPI_IT_ERR: Error interrupt enable
Return value:
None
__HAL_SPI_GET_IT_SOURCE
Description:
Check if the specified SPI interrupt source is
enabled or disabled.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
__INTERRUPT__: specifies the SPI
interrupt source to check. This parameter
can be one of the following values:
SPI_IT_TXE: Tx buffer empty interrupt
enable
SPI_IT_RXNE: RX buffer not empty
interrupt enable
SPI_IT_ERR: Error interrupt enable
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_SPI_GET_FLAG
Description:
Check whether the specified SPI flag is set
or not.
Parameters:
__HANDLE__: specifies the SPI handle.
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This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
__FLAG__: specifies the flag to check. This
parameter can be one of the following
values:
SPI_FLAG_RXNE: Receive buffer not
empty flag
SPI_FLAG_TXE: Transmit buffer
empty flag
SPI_FLAG_CRCERR: CRC error flag
SPI_FLAG_MODF: Mode fault flag
SPI_FLAG_OVR: Overrun flag
SPI_FLAG_BSY: Busy flag
SPI_FLAG_FRE: Frame format error
flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_SPI_CLEAR_CRCERRFLAG
Description:
Clear the SPI CRCERR pending flag.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_CLEAR_MODFFLAG
Description:
Clear the SPI MODF pending flag.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_CLEAR_OVRFLAG
Description:
Clear the SPI OVR pending flag.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_CLEAR_FREFLAG
Description:
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Clear the SPI FRE pending flag.
Parameters:
__HANDLE__: specifies the SPI handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_ENABLE
Description:
Enables the SPI.
Parameters:
__HANDLE__: specifies the SPI Handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
__HAL_SPI_DISABLE
Description:
Disables the SPI.
Parameters:
__HANDLE__: specifies the SPI Handle.
This parameter can be SPIx where x: 1 or 2
to select the SPI peripheral.
Return value:
None
SPI Flag definition
SPI_FLAG_RXNE
SPI_FLAG_TXE
SPI_FLAG_CRCERR
SPI_FLAG_MODF
SPI_FLAG_OVR
SPI_FLAG_BSY
SPI_FLAG_FRE
SPI Interrupt configuration definition
SPI_IT_TXE
SPI_IT_RXNE
SPI_IT_ERR
SPI mode
SPI_MODE_SLAVE
SPI_MODE_MASTER
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SPI MSB LSB transmission
SPI_FIRSTBIT_MSB
SPI_FIRSTBIT_LSB
SPI Slave Select management
SPI_NSS_SOFT
SPI_NSS_HARD_INPUT
SPI_NSS_HARD_OUTPUT
SPI TI mode
SPI_TIMODE_DISABLE
SPI_TIMODE_ENABLE
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45 HAL TIM Generic Driver
45.1 TIM Firmware driver registers structures
45.1.1 TIM_Base_InitTypeDef
Data Fields
uint32_t Prescaler
uint32_t CounterMode
uint32_t Period
uint32_t ClockDivision
Field Documentation
uint32_t TIM_Base_InitTypeDef::Prescaler
Specifies the prescaler value used to divide the TIM clock. This parameter can be a
number between Min_Data = 0x0000 and Max_Data = 0xFFFF
uint32_t TIM_Base_InitTypeDef::CounterMode
Specifies the counter mode. This parameter can be a value of TIM_Counter_Mode
uint32_t TIM_Base_InitTypeDef::Period
Specifies the period value to be loaded into the active Auto-Reload Register at the
next update event. This parameter can be a number between Min_Data = 0x0000 and
Max_Data = 0xFFFF.
uint32_t TIM_Base_InitTypeDef::ClockDivision
Specifies the clock division. This parameter can be a value of TIM_ClockDivision
45.1.2 TIM_OC_InitTypeDef
Data Fields
uint32_t OCMode
uint32_t Pulse
uint32_t OCPolarity
uint32_t OCFastMode
Field Documentation
uint32_t TIM_OC_InitTypeDef::OCMode
Specifies the TIM mode. This parameter can be a value of
TIM_Output_Compare_and_PWM_modes
uint32_t TIM_OC_InitTypeDef::Pulse
Specifies the pulse value to be loaded into the Capture Compare Register. This
parameter can be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF
uint32_t TIM_OC_InitTypeDef::OCPolarity
Specifies the output polarity. This parameter can be a value of
TIM_Output_Compare_Polarity
uint32_t TIM_OC_InitTypeDef::OCFastMode
Specifies the Fast mode state. This parameter can be a value of
TIM_Output_Fast_State
Note:This parameter is valid only in PWM1 and PWM2 mode.
45.1.3 TIM_OnePulse_InitTypeDef
Data Fields
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uint32_t OCMode
uint32_t Pulse
uint32_t OCPolarity
uint32_t ICPolarity
uint32_t ICSelection
uint32_t ICFilter
Field Documentation
uint32_t TIM_OnePulse_InitTypeDef::OCMode
Specifies the TIM mode. This parameter can be a value of
TIM_Output_Compare_and_PWM_modes
uint32_t TIM_OnePulse_InitTypeDef::Pulse
Specifies the pulse value to be loaded into the Capture Compare Register. This
parameter can be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF
uint32_t TIM_OnePulse_InitTypeDef::OCPolarity
Specifies the output polarity. This parameter can be a value of
TIM_Output_Compare_Polarity
uint32_t TIM_OnePulse_InitTypeDef::ICPolarity
Specifies the active edge of the input signal. This parameter can be a value of
TIM_Input_Capture_Polarity
uint32_t TIM_OnePulse_InitTypeDef::ICSelection
Specifies the input. This parameter can be a value of TIM_Input_Capture_Selection
uint32_t TIM_OnePulse_InitTypeDef::ICFilter
Specifies the input capture filter. This parameter can be a number between Min_Data
= 0x0 and Max_Data = 0xF
45.1.4 TIM_IC_InitTypeDef
Data Fields
uint32_t ICPolarity
uint32_t ICSelection
uint32_t ICPrescaler
uint32_t ICFilter
Field Documentation
uint32_t TIM_IC_InitTypeDef::ICPolarity
Specifies the active edge of the input signal. This parameter can be a value of
TIM_Input_Capture_Polarity
uint32_t TIM_IC_InitTypeDef::ICSelection
Specifies the input. This parameter can be a value of TIM_Input_Capture_Selection
uint32_t TIM_IC_InitTypeDef::ICPrescaler
Specifies the Input Capture Prescaler. This parameter can be a value of
TIM_Input_Capture_Prescaler
uint32_t TIM_IC_InitTypeDef::ICFilter
Specifies the input capture filter. This parameter can be a number between Min_Data
= 0x0 and Max_Data = 0xF
45.1.5 TIM_Encoder_InitTypeDef
Data Fields
uint32_t EncoderMode
uint32_t IC1Polarity
uint32_t IC1Selection
uint32_t IC1Prescaler
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uint32_t IC1Filter
uint32_t IC2Polarity
uint32_t IC2Selection
uint32_t IC2Prescaler
uint32_t IC2Filter
Field Documentation
uint32_t TIM_Encoder_InitTypeDef::EncoderMode
Specifies the active edge of the input signal. This parameter can be a value of
TIM_Encoder_Mode
uint32_t TIM_Encoder_InitTypeDef::IC1Polarity
Specifies the active edge of the input signal. This parameter can be a value of
TIM_Input_Capture_Polarity
uint32_t TIM_Encoder_InitTypeDef::IC1Selection
Specifies the input. This parameter can be a value of TIM_Input_Capture_Selection
uint32_t TIM_Encoder_InitTypeDef::IC1Prescaler
Specifies the Input Capture Prescaler. This parameter can be a value of
TIM_Input_Capture_Prescaler
uint32_t TIM_Encoder_InitTypeDef::IC1Filter
Specifies the input capture filter. This parameter can be a number between Min_Data
= 0x0 and Max_Data = 0xF
uint32_t TIM_Encoder_InitTypeDef::IC2Polarity
Specifies the active edge of the input signal. This parameter can be a value of
TIM_Input_Capture_Polarity
uint32_t TIM_Encoder_InitTypeDef::IC2Selection
Specifies the input. This parameter can be a value of TIM_Input_Capture_Selection
uint32_t TIM_Encoder_InitTypeDef::IC2Prescaler
Specifies the Input Capture Prescaler. This parameter can be a value of
TIM_Input_Capture_Prescaler
uint32_t TIM_Encoder_InitTypeDef::IC2Filter
Specifies the input capture filter. This parameter can be a number between Min_Data
= 0x0 and Max_Data = 0xF
45.1.6 TIM_ClockConfigTypeDef
Data Fields
uint32_t ClockSource
uint32_t ClockPolarity
uint32_t ClockPrescaler
uint32_t ClockFilter
Field Documentation
uint32_t TIM_ClockConfigTypeDef::ClockSource
TIM clock sources. This parameter can be a value of TIM_Clock_Source
uint32_t TIM_ClockConfigTypeDef::ClockPolarity
TIM clock polarity. This parameter can be a value of TIM_Clock_Polarity
uint32_t TIM_ClockConfigTypeDef::ClockPrescaler
TIM clock prescaler. This parameter can be a value of TIM_Clock_Prescaler
uint32_t TIM_ClockConfigTypeDef::ClockFilter
TIM clock filter. This parameter can be a number between Min_Data = 0x0 and
Max_Data = 0xF
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45.1.7 TIM_ClearInputConfigTypeDef
Data Fields
uint32_t ClearInputState
uint32_t ClearInputSource
uint32_t ClearInputPolarity
uint32_t ClearInputPrescaler
uint32_t ClearInputFilter
Field Documentation
uint32_t TIM_ClearInputConfigTypeDef::ClearInputState
TIM clear Input state. This parameter can be ENABLE or DISABLE
uint32_t TIM_ClearInputConfigTypeDef::ClearInputSource
TIM clear Input sources. This parameter can be a value of TIM_ClearInput_Source
uint32_t TIM_ClearInputConfigTypeDef::ClearInputPolarity
TIM Clear Input polarity. This parameter can be a value of TIM_ClearInput_Polarity
uint32_t TIM_ClearInputConfigTypeDef::ClearInputPrescaler
TIM Clear Input prescaler. This parameter can be a value of
TIM_ClearInput_Prescaler
uint32_t TIM_ClearInputConfigTypeDef::ClearInputFilter
TIM Clear Input filter. This parameter can be a number between Min_Data = 0x0 and
Max_Data = 0xF
45.1.8 TIM_SlaveConfigTypeDef
Data Fields
uint32_t SlaveMode
uint32_t InputTrigger
uint32_t TriggerPolarity
uint32_t TriggerPrescaler
uint32_t TriggerFilter
Field Documentation
uint32_t TIM_SlaveConfigTypeDef::SlaveMode
Slave mode selection. This parameter can be a value of TIM_Slave_Mode
uint32_t TIM_SlaveConfigTypeDef::InputTrigger
Input Trigger source. This parameter can be a value of TIM_Trigger_Selection
uint32_t TIM_SlaveConfigTypeDef::TriggerPolarity
Input Trigger polarity. This parameter can be a value of TIM_Trigger_Polarity
uint32_t TIM_SlaveConfigTypeDef::TriggerPrescaler
Input trigger prescaler. This parameter can be a value of TIM_Trigger_Prescaler
uint32_t TIM_SlaveConfigTypeDef::TriggerFilter
Input trigger filter. This parameter can be a number between Min_Data = 0x0 and
Max_Data = 0xF
45.1.9 TIM_HandleTypeDef
Data Fields
TIM_TypeDef * Instance
TIM_Base_InitTypeDef Init
HAL_TIM_ActiveChannel Channel
DMA_HandleTypeDef * hdma
HAL_LockTypeDef Lock
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__IO HAL_TIM_StateTypeDef State
Field Documentation
TIM_TypeDef* TIM_HandleTypeDef::Instance
Register base address
TIM_Base_InitTypeDef TIM_HandleTypeDef::Init
TIM Time Base required parameters
HAL_TIM_ActiveChannel TIM_HandleTypeDef::Channel
Active channel
DMA_HandleTypeDef* TIM_HandleTypeDef::hdma[7]
DMA Handlers array This array is accessed by a DMA_Handle_index
HAL_LockTypeDef TIM_HandleTypeDef::Lock
Locking object
__IO HAL_TIM_StateTypeDef TIM_HandleTypeDef::State
TIM operation state
45.2 TIM Firmware driver API description
45.2.1 TIMER Generic features
The Timer features include:
1. 16-bit up, down, up/down auto-reload counter.
2. 16-bit programmable prescaler allowing dividing (also on the fly) the counter clock
frequency either by any factor between 1 and 65536.
3. Up to 4 independent channels for:
Input Capture
Output Compare
PWM generation (Edge and Center-aligned Mode)
One-pulse mode output
4. Synchronization circuit to control the timer with external signals and to interconnect
several timers together.
5. Supports incremental (quadrature) encoder and hall-sensor circuitry for positioning
purposes
45.2.2 How to use this driver
1. Initialize the TIM low level resources by implementing the following functions
depending from feature used :
Time Base : HAL_TIM_Base_MspInit()
Input Capture : HAL_TIM_IC_MspInit()
Output Compare : HAL_TIM_OC_MspInit()
PWM generation : HAL_TIM_PWM_MspInit()
One-pulse mode output : HAL_TIM_OnePulse_MspInit()
Encoder mode output : HAL_TIM_Encoder_MspInit()
2. Initialize the TIM low level resources :
a. Enable the TIM interface clock using __HAL_RCC_TIMx_CLK_ENABLE();
b. TIM pins configuration
Enable the clock for the TIM GPIOs using the following function:
__HAL_RCC_GPIOx_CLK_ENABLE();
Configure these TIM pins in Alternate function mode using HAL_GPIO_Init();
3. The external Clock can be configured, if needed (the default clock is the internal clock
from the APBx), using the following function: HAL_TIM_ConfigClockSource, the clock
configuration should be done before any start function.
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4. Configure the TIM in the desired functioning mode using one of the initialization
function of this driver:
HAL_TIM_Base_Init: to use the Timer to generate a simple timebase
HAL_TIM_OC_Init and HAL_TIM_OC_ConfigChannel: to use the Timer to
generate an Output Compare signal.
HAL_TIM_PWM_Init and HAL_TIM_PWM_ConfigChannel: to use the Timer to
generate a PWM signal.
HAL_TIM_IC_Init and HAL_TIM_IC_ConfigChannel: to use the Timer to measure
an external signal.
HAL_TIM_OnePulse_Init and HAL_TIM_OnePulse_ConfigChannel: to use the
Timer in One Pulse Mode.
HAL_TIM_Encoder_Init: to use the Timer Encoder Interface.
5. Activate the TIM peripheral using one of the start functions: HAL_TIM_Base_Start(),
HAL_TIM_Base_Start_DMA(), HAL_TIM_Base_Start_IT(), HAL_TIM_OC_Start(),
HAL_TIM_OC_Start_DMA(), HAL_TIM_OC_Start_IT(), HAL_TIM_IC_Start(),
HAL_TIM_IC_Start_DMA(), HAL_TIM_IC_Start_IT(), HAL_TIM_PWM_Start(),
HAL_TIM_PWM_Start_DMA(), HAL_TIM_PWM_Start_IT(),
HAL_TIM_OnePulse_Start(), HAL_TIM_OnePulse_Start_IT(),
HAL_TIM_Encoder_Start(), HAL_TIM_Encoder_Start_DMA() or
HAL_TIM_Encoder_Start_IT()
6. The DMA Burst is managed with the two following functions:
HAL_TIM_DMABurst_WriteStart HAL_TIM_DMABurst_ReadStart
45.2.3 Timer Base functions
This section provides functions allowing to:
Initialize and configure the TIM base.
De-initialize the TIM base.
Start the Timer Base.
Stop the Timer Base.
Start the Timer Base and enable interrupt.
Stop the Timer Base and disable interrupt.
Start the Timer Base and enable DMA transfer.
Stop the Timer Base and disable DMA transfer.
This section contains the following APIs:
HAL_TIM_Base_Init()
HAL_TIM_Base_DeInit()
HAL_TIM_Base_MspInit()
HAL_TIM_Base_MspDeInit()
HAL_TIM_Base_Start()
HAL_TIM_Base_Stop()
HAL_TIM_Base_Start_IT()
HAL_TIM_Base_Stop_IT()
HAL_TIM_Base_Start_DMA()
HAL_TIM_Base_Stop_DMA()
45.2.4 Peripheral State functions
This subsection permits to get in run-time the status of the peripheral and the data flow.
This section contains the following APIs:
HAL_TIM_Base_GetState()
HAL_TIM_OC_GetState()
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HAL_TIM_PWM_GetState()
HAL_TIM_IC_GetState()
HAL_TIM_OnePulse_GetState()
HAL_TIM_Encoder_GetState()
TIM_DMAError()
TIM_DMADelayPulseCplt()
TIM_DMACaptureCplt()
45.2.5 Detailed description of functions
HAL_TIM_Base_Init
Function name
HAL_StatusTypeDef HAL_TIM_Base_Init (TIM_HandleTypeDef
* htim)
Function description
Initializes the TIM Time base Unit according to the specified
parameters in the TIM_HandleTypeDef and create the associated
handle.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_Base_DeInit
(TIM_HandleTypeDef * htim)
Function description
DeInitializes the TIM Base peripheral.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_MspInit
Function name
void HAL_TIM_Base_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM Base MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_Base_MspDeInit
Function name
void HAL_TIM_Base_MspDeInit (TIM_HandleTypeDef * htim)
Function description
DeInitializes TIM Base MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_Base_Start
Function name
HAL_StatusTypeDef HAL_TIM_Base_Start
(TIM_HandleTypeDef * htim)
Function description
Starts the TIM Base generation.
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Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_Stop
Function name
HAL_StatusTypeDef HAL_TIM_Base_Stop
(TIM_HandleTypeDef * htim)
Function description
Stops the TIM Base generation.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_Base_Start_IT
(TIM_HandleTypeDef * htim)
Function description
Starts the TIM Base generation in interrupt mode.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_Base_Stop_IT
(TIM_HandleTypeDef * htim)
Function description
Stops the TIM Base generation in interrupt mode.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_Base_Start_DMA
Function name
HAL_StatusTypeDef HAL_TIM_Base_Start_DMA
(TIM_HandleTypeDef * htim, uint32_t * pData, uint16_t Length)
Function description
Starts the TIM Base generation in DMA mode.
Parameters
htim: : TIM handle
pData: The source Buffer address.
Length: The length of data to be transferred from memory to
peripheral.
Return values
HAL: status
HAL_TIM_Base_Stop_DMA
Function name
HAL_StatusTypeDef HAL_TIM_Base_Stop_DMA
(TIM_HandleTypeDef * htim)
Function description
Stops the TIM Base generation in DMA mode.
Parameters
htim: : TIM handle
Return values
HAL: status
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HAL_TIM_OC_Init
Function name
HAL_StatusTypeDef HAL_TIM_OC_Init (TIM_HandleTypeDef *
htim)
Function description
Initializes the TIM Output Compare according to the specified
parameters in the TIM_HandleTypeDef and create the associated
handle.
Parameters
htim: TIM Output Compare handle
Return values
HAL: status
HAL_TIM_OC_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_OC_DeInit
(TIM_HandleTypeDef * htim)
Function description
DeInitializes the TIM peripheral.
Parameters
htim: TIM Output Compare handle
Return values
HAL: status
HAL_TIM_OC_MspInit
Function name
void HAL_TIM_OC_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM Output Compare MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_OC_MspDeInit
Function name
void HAL_TIM_OC_MspDeInit (TIM_HandleTypeDef * htim)
Function description
DeInitializes TIM Output Compare MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_OC_Start
Function name
HAL_StatusTypeDef HAL_TIM_OC_Start (TIM_HandleTypeDef
* htim, uint32_t Channel)
Function description
Starts the TIM Output Compare signal generation.
Parameters
htim: : TIM handle
Channel: TIM Channel to be enabled. This parameter can be
one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
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HAL_TIM_OC_Stop
Function name
HAL_StatusTypeDef HAL_TIM_OC_Stop (TIM_HandleTypeDef
* htim, uint32_t Channel)
Function description
Stops the TIM Output Compare signal generation.
Parameters
htim: : TIM handle
Channel: TIM Channel to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_OC_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_OC_Start_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the TIM Output Compare signal generation in interrupt
mode.
Parameters
htim: : TIM handle
Channel: TIM Channel to be enabled. This parameter can be
one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_OC_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_OC_Stop_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Output Compare signal generation in interrupt
mode.
Parameters
htim: : TIM handle
Channel: TIM Channel to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_OC_Start_DMA
Function name
HAL_StatusTypeDef HAL_TIM_OC_Start_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel, uint32_t *
pData, uint16_t Length)
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Function description
Starts the TIM Output Compare signal generation in DMA mode.
Parameters
htim: : TIM handle
Channel: TIM Channel to be enabled. This parameter can be
one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
pData: The source Buffer address.
Length: The length of data to be transferred from memory to
TIM peripheral
Return values
HAL: status
HAL_TIM_OC_Stop_DMA
Function name
HAL_StatusTypeDef HAL_TIM_OC_Stop_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Output Compare signal generation in DMA mode.
Parameters
htim: : TIM handle
Channel: TIM Channel to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_Init
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Init (TIM_HandleTypeDef
* htim)
Function description
Initializes the TIM PWM Time Base according to the specified
parameters in the TIM_HandleTypeDef and create the associated
handle.
Parameters
htim: : TIM handle
Return values
HAL: status
HAL_TIM_PWM_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_PWM_DeInit
(TIM_HandleTypeDef * htim)
Function description
DeInitializes the TIM peripheral.
Parameters
htim: : TIM handle
Return values
HAL: status
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HAL_TIM_PWM_MspInit
Function name
void HAL_TIM_PWM_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM PWM MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_PWM_MspDeInit
Function name
void HAL_TIM_PWM_MspDeInit (TIM_HandleTypeDef * htim)
Function description
DeInitializes TIM PWM MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_PWM_Start
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Start
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the PWM signal generation.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_Stop
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Stop
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the PWM signal generation.
Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Start_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the PWM signal generation in interrupt mode.
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Parameters
htim: : TIM handle
Channel: TIM Channel to be enabled. This parameter can be
one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Stop_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the PWM signal generation in interrupt mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_Start_DMA
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Start_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel, uint32_t *
pData, uint16_t Length)
Function description
Starts the TIM PWM signal generation in DMA mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
pData: The source Buffer address. This buffer contains the
values which will be loaded inside the capture/compare
registers.
Length: The length of data to be transferred from memory to
TIM peripheral
Return values
HAL: status
HAL_TIM_PWM_Stop_DMA
Function name
HAL_StatusTypeDef HAL_TIM_PWM_Stop_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM PWM signal generation in DMA mode.
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Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_Init
Function name
HAL_StatusTypeDef HAL_TIM_IC_Init (TIM_HandleTypeDef *
htim)
Function description
Initializes the TIM Input Capture Time base according to the
specified parameters in the TIM_HandleTypeDef and create the
associated handle.
Parameters
htim: TIM Input Capture handle
Return values
HAL: status
HAL_TIM_IC_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_IC_DeInit (TIM_HandleTypeDef
* htim)
Function description
DeInitializes the TIM peripheral.
Parameters
htim: TIM Input Capture handle
Return values
HAL: status
HAL_TIM_IC_MspInit
Function name
void HAL_TIM_IC_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM INput Capture MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_IC_MspDeInit
Function name
void HAL_TIM_IC_MspDeInit (TIM_HandleTypeDef * htim)
Function description
DeInitializes TIM Input Capture MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_IC_Start
Function name
HAL_StatusTypeDef HAL_TIM_IC_Start (TIM_HandleTypeDef *
htim, uint32_t Channel)
Function description
Starts the TIM Input Capture measurement.
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Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_Stop
Function name
HAL_StatusTypeDef HAL_TIM_IC_Stop (TIM_HandleTypeDef *
htim, uint32_t Channel)
Function description
Stops the TIM Input Capture measurement.
Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_IC_Start_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the TIM Input Capture measurement in interrupt mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_IC_Stop_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Input Capture measurement in interrupt mode.
Parameters
htim: : TIM handle
Channel: : TIM Channels to be disabled This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
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TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_Start_DMA
Function name
HAL_StatusTypeDef HAL_TIM_IC_Start_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel, uint32_t *
pData, uint16_t Length)
Function description
Starts the TIM Input Capture measurement on in DMA mode.
Parameters
htim: : TIM handle
Channel: : TIM Channels to be enabled This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
pData: The destination Buffer address.
Length: The length of data to be transferred from TIM
peripheral to memory.
Return values
HAL: status
HAL_TIM_IC_Stop_DMA
Function name
HAL_StatusTypeDef HAL_TIM_IC_Stop_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Input Capture measurement on in DMA mode.
Parameters
htim: : TIM handle
Channel: : TIM Channels to be disabled This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_OnePulse_Init
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_Init
(TIM_HandleTypeDef * htim, uint32_t OnePulseMode)
Function description
Initializes the TIM One Pulse Time Base according to the specified
parameters in the TIM_HandleTypeDef and create the associated
handle.
Parameters
htim: TIM OnePulse handle
OnePulseMode: Select the One pulse mode. This parameter
can be one of the following values:
TIM_OPMODE_SINGLE: Only one pulse will be
generated.
TIM_OPMODE_REPETITIVE: Repetitive pulses will be
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generated.
Return values
HAL: status
HAL_TIM_OnePulse_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_DeInit
(TIM_HandleTypeDef * htim)
Function description
DeInitializes the TIM One Pulse.
Parameters
htim: TIM One Pulse handle
Return values
HAL: status
HAL_TIM_OnePulse_MspInit
Function name
void HAL_TIM_OnePulse_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM One Pulse MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_OnePulse_MspDeInit
Function name
void HAL_TIM_OnePulse_MspDeInit (TIM_HandleTypeDef *
htim)
Function description
DeInitializes TIM One Pulse MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_OnePulse_Start
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_Start
(TIM_HandleTypeDef * htim, uint32_t OutputChannel)
Function description
Starts the TIM One Pulse signal generation.
Parameters
htim: : TIM handle
OutputChannel: : TIM Channels to be enabled. This
parameter is not used since both channels TIM_CHANNEL_1
and TIM_CHANNEL_2 are automatically selected.
Return values
HAL: status
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HAL_TIM_OnePulse_Stop
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_Stop
(TIM_HandleTypeDef * htim, uint32_t OutputChannel)
Function description
Stops the TIM One Pulse signal generation.
Parameters
htim: : TIM handle
OutputChannel: : TIM Channels to be disable. This
parameter can be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
Return values
HAL: status
HAL_TIM_OnePulse_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_Start_IT
(TIM_HandleTypeDef * htim, uint32_t OutputChannel)
Function description
Starts the TIM One Pulse signal generation in interrupt mode.
Parameters
htim: : TIM handle
OutputChannel: TIM Channels to be enabled. This
parameter can be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
Return values
HAL: status
HAL_TIM_OnePulse_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_Stop_IT
(TIM_HandleTypeDef * htim, uint32_t OutputChannel)
Function description
Stops the TIM One Pulse signal generation in interrupt mode.
Parameters
htim: : TIM handle
OutputChannel: TIM Channels to be enabled. This
parameter can be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
Return values
HAL: status
HAL_TIM_Encoder_Init
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Init
(TIM_HandleTypeDef * htim, TIM_Encoder_InitTypeDef *
sConfig)
Function description
Initializes the TIM Encoder Interface and create the associated
handle.
Parameters
htim: TIM Encoder Interface handle
sConfig: TIM Encoder Interface configuration structure
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Return values
HAL: status
HAL_TIM_Encoder_DeInit
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_DeInit
(TIM_HandleTypeDef * htim)
Function description
DeInitializes the TIM Encoder interface.
Parameters
htim: TIM Encoder handle
Return values
HAL: status
HAL_TIM_Encoder_MspInit
Function name
void HAL_TIM_Encoder_MspInit (TIM_HandleTypeDef * htim)
Function description
Initializes the TIM Encoder Interface MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_Encoder_MspDeInit
Function name
void HAL_TIM_Encoder_MspDeInit (TIM_HandleTypeDef *
htim)
Function description
DeInitializes TIM Encoder Interface MSP.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_Encoder_Start
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Start
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the TIM Encoder Interface.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL: TIM Channel 1 and TIM Channel 2
are selected
Return values
HAL: status
HAL_TIM_Encoder_Stop
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Stop
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Encoder Interface.
Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
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be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL: TIM Channel 1 and TIM Channel 2
are selected
Return values
HAL: status
HAL_TIM_Encoder_Start_IT
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Start_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Starts the TIM Encoder Interface in interrupt mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL: TIM Channel 1 and TIM Channel 2
are selected
Return values
HAL: status
HAL_TIM_Encoder_Stop_IT
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Stop_IT
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Encoder Interface in interrupt mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be disabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL: TIM Channel 1 and TIM Channel 2
are selected
Return values
HAL: status
HAL_TIM_Encoder_Start_DMA
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Start_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel, uint32_t *
pData1, uint32_t * pData2, uint16_t Length)
Function description
Starts the TIM Encoder Interface in DMA mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL : TIM Channel 1 and 2 selected
pData1: The destination Buffer address for IC1.
pData2: The destination Buffer address for IC2.
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Length: The length of data to be transferred from TIM
peripheral to memory.
Return values
HAL: status
HAL_TIM_Encoder_Stop_DMA
Function name
HAL_StatusTypeDef HAL_TIM_Encoder_Stop_DMA
(TIM_HandleTypeDef * htim, uint32_t Channel)
Function description
Stops the TIM Encoder Interface in DMA mode.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_ALL: TIM Channel 1 and TIM Channel 2
are selected
Return values
HAL: status
HAL_TIM_IRQHandler
Function name
void HAL_TIM_IRQHandler (TIM_HandleTypeDef * htim)
Function description
This function handles TIM interrupts requests.
Parameters
htim: TIM handle
Return values
None
HAL_TIM_OC_ConfigChannel
Function name
HAL_StatusTypeDef HAL_TIM_OC_ConfigChannel
(TIM_HandleTypeDef * htim, TIM_OC_InitTypeDef * sConfig,
uint32_t Channel)
Function description
Initializes the TIM Output Compare Channels according to the
specified parameters in the TIM_OC_InitTypeDef.
Parameters
htim: : TIM handle
sConfig: TIM Output Compare configuration structure
Channel: TIM Channel to be configure. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_PWM_ConfigChannel
Function name
HAL_StatusTypeDef HAL_TIM_PWM_ConfigChannel
(TIM_HandleTypeDef * htim, TIM_OC_InitTypeDef * sConfig,
uint32_t Channel)
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Function description
Initializes the TIM PWM channels according to the specified
parameters in the TIM_OC_InitTypeDef.
Parameters
htim: : TIM handle
sConfig: TIM PWM configuration structure
Channel: TIM Channel to be configured. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_IC_ConfigChannel
Function name
HAL_StatusTypeDef HAL_TIM_IC_ConfigChannel
(TIM_HandleTypeDef * htim, TIM_IC_InitTypeDef * sConfig,
uint32_t Channel)
Function description
Initializes the TIM Input Capture Channels according to the
specified parameters in the TIM_IC_InitTypeDef.
Parameters
htim: : TIM handle
sConfig: TIM Input Capture configuration structure
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_OnePulse_ConfigChannel
Function name
HAL_StatusTypeDef HAL_TIM_OnePulse_ConfigChannel
(TIM_HandleTypeDef * htim, TIM_OnePulse_InitTypeDef *
sConfig, uint32_t OutputChannel, uint32_t InputChannel)
Function description
Initializes the TIM One Pulse Channels according to the specified
parameters in the TIM_OnePulse_InitTypeDef.
Parameters
htim: : TIM handle
sConfig: TIM One Pulse configuration structure
OutputChannel: TIM Channels to be enabled. This
parameter can be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
InputChannel: TIM Channels to be enabled. This parameter
can be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
Return values
HAL: status
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HAL_TIM_ConfigOCrefClear
Function name
HAL_StatusTypeDef HAL_TIM_ConfigOCrefClear
(TIM_HandleTypeDef * htim, TIM_ClearInputConfigTypeDef *
sClearInputConfig, uint32_t Channel)
Function description
Configures the OCRef clear feature.
Parameters
htim: : TIM handle
sClearInputConfig: pointer to a
TIM_ClearInputConfigTypeDef structure that contains the
OCREF clear feature and parameters for the TIM peripheral.
Channel: specifies the TIM Channel. This parameter can be
one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
HAL: status
HAL_TIM_ConfigClockSource
Function name
HAL_StatusTypeDef HAL_TIM_ConfigClockSource
(TIM_HandleTypeDef * htim, TIM_ClockConfigTypeDef *
sClockSourceConfig)
Function description
Configures the clock source to be used.
Parameters
htim: : TIM handle
sClockSourceConfig: pointer to a TIM_ClockConfigTypeDef
structure that contains the clock source information for the
TIM peripheral.
Return values
HAL: status
HAL_TIM_ConfigTI1Input
Function name
HAL_StatusTypeDef HAL_TIM_ConfigTI1Input
(TIM_HandleTypeDef * htim, uint32_t TI1_Selection)
Function description
Selects the signal connected to the TI1 input: direct from
CH1_input or a XOR combination between CH1_input, CH2_input
& CH3_input.
Parameters
htim: : TIM handle
TI1_Selection: Indicate whether or not channel 1 is
connected to the output of a XOR gate. This parameter can
be one of the following values:
TIM_TI1SELECTION_CH1: The TIMx_CH1 pin is
connected to TI1 input
TIM_TI1SELECTION_XORCOMBINATION: The
TIMx_CH1, CH2 and CH3 pins are connected to the TI1
input (XOR combination)
Return values
HAL: status
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HAL_TIM_SlaveConfigSynchronization
Function name
HAL_StatusTypeDef HAL_TIM_SlaveConfigSynchronization
(TIM_HandleTypeDef * htim, TIM_SlaveConfigTypeDef *
sSlaveConfig)
Function description
Configures the TIM in Slave mode.
Parameters
htim: : TIM handle
sSlaveConfig: pointer to a TIM_SlaveConfigTypeDef
structure that contains the selected trigger (internal trigger
input, filtered timer input or external trigger input) and the )
and the Slave mode (Disable, Reset, Gated, Trigger, External
clock mode 1).
Return values
HAL: status
HAL_TIM_SlaveConfigSynchronization_IT
Function name
HAL_StatusTypeDef
HAL_TIM_SlaveConfigSynchronization_IT
(TIM_HandleTypeDef * htim, TIM_SlaveConfigTypeDef *
sSlaveConfig)
Function description
Configures the TIM in Slave mode in interrupt mode.
Parameters
htim: : TIM handle.
sSlaveConfig: pointer to a TIM_SlaveConfigTypeDef
structure that contains the selected trigger (internal trigger
input, filtered timer input or external trigger input) and the )
and the Slave mode (Disable, Reset, Gated, Trigger, External
clock mode 1).
Return values
HAL: status
HAL_TIM_DMABurst_WriteStart
Function name
HAL_StatusTypeDef HAL_TIM_DMABurst_WriteStart
(TIM_HandleTypeDef * htim, uint32_t BurstBaseAddress,
uint32_t BurstRequestSrc, uint32_t * BurstBuffer, uint32_t
BurstLength)
Function description
Configure the DMA Burst to transfer Data from the memory to the
TIM peripheral.
Parameters
htim: : TIM handle
BurstBaseAddress: TIM Base address from when the DMA
will starts the Data write. This parameters can be on of the
following values:
TIM_DMABASE_CR1
TIM_DMABASE_CR2
TIM_DMABASE_SMCR
TIM_DMABASE_DIER
TIM_DMABASE_SR
TIM_DMABASE_EGR
TIM_DMABASE_CCMR1
TIM_DMABASE_CCMR2
TIM_DMABASE_CCER
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TIM_DMABASE_CNT
TIM_DMABASE_PSC
TIM_DMABASE_ARR
TIM_DMABASE_CCR1
TIM_DMABASE_CCR2
TIM_DMABASE_CCR3
TIM_DMABASE_CCR4
TIM_DMABASE_DCR
BurstRequestSrc: TIM DMA Request sources. This
parameters can be on of the following values:
TIM_DMA_UPDATE: TIM update Interrupt source
TIM_DMA_CC1: TIM Capture Compare 1 DMA source
TIM_DMA_CC2: TIM Capture Compare 2 DMA source
TIM_DMA_CC3: TIM Capture Compare 3 DMA source
TIM_DMA_CC4: TIM Capture Compare 4 DMA source
TIM_DMA_TRIGGER: TIM Trigger DMA source
BurstBuffer: The Buffer address.
BurstLength: DMA Burst length. This parameter can be one
value between TIM_DMABURSTLENGTH_1TRANSFER and
TIM_DMABURSTLENGTH_18TRANSFERS .
Return values
HAL: status
HAL_TIM_DMABurst_WriteStop
Function name
HAL_StatusTypeDef HAL_TIM_DMABurst_WriteStop
(TIM_HandleTypeDef * htim, uint32_t BurstRequestSrc)
Function description
Stops the TIM DMA Burst mode.
Parameters
htim: : TIM handle
BurstRequestSrc: TIM DMA Request sources to disable
Return values
HAL: status
HAL_TIM_DMABurst_ReadStart
Function name
HAL_StatusTypeDef HAL_TIM_DMABurst_ReadStart
(TIM_HandleTypeDef * htim, uint32_t BurstBaseAddress,
uint32_t BurstRequestSrc, uint32_t * BurstBuffer, uint32_t
BurstLength)
Function description
Configure the DMA Burst to transfer Data from the TIM peripheral
to the memory.
Parameters
htim: : TIM handle
BurstBaseAddress: TIM Base address from when the DMA
will starts the Data read. This parameters can be on of the
following values:
TIM_DMABASE_CR1
TIM_DMABASE_CR2
TIM_DMABASE_SMCR
TIM_DMABASE_DIER
TIM_DMABASE_SR
TIM_DMABASE_EGR
TIM_DMABASE_CCMR1
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TIM_DMABASE_CCMR2
TIM_DMABASE_CCER
TIM_DMABASE_CNT
TIM_DMABASE_PSC
TIM_DMABASE_ARR
TIM_DMABASE_CCR1
TIM_DMABASE_CCR2
TIM_DMABASE_CCR3
TIM_DMABASE_CCR4
TIM_DMABASE_DCR
BurstRequestSrc: TIM DMA Request sources. This
parameters can be on of the following values:
TIM_DMA_UPDATE: TIM update Interrupt source
TIM_DMA_CC1: TIM Capture Compare 1 DMA source
TIM_DMA_CC2: TIM Capture Compare 2 DMA source
TIM_DMA_CC3: TIM Capture Compare 3 DMA source
TIM_DMA_CC4: TIM Capture Compare 4 DMA source
TIM_DMA_TRIGGER: TIM Trigger DMA source
BurstBuffer: The Buffer address.
BurstLength: DMA Burst length. This parameter can be one
value between TIM_DMABURSTLENGTH_1TRANSFER and
TIM_DMABURSTLENGTH_18TRANSFERS .
Return values
HAL: status
HAL_TIM_DMABurst_ReadStop
Function name
HAL_StatusTypeDef HAL_TIM_DMABurst_ReadStop
(TIM_HandleTypeDef * htim, uint32_t BurstRequestSrc)
Function description
Stop the DMA burst reading.
Parameters
htim: : TIM handle
BurstRequestSrc: TIM DMA Request sources to disable.
Return values
HAL: status
HAL_TIM_GenerateEvent
Function name
HAL_StatusTypeDef HAL_TIM_GenerateEvent
(TIM_HandleTypeDef * htim, uint32_t EventSource)
Function description
Generate a software event.
Parameters
htim: : TIM handle
EventSource: specifies the event source. This parameter
can be one of the following values:
TIM_EventSource_Update: Timer update Event source
TIM_EVENTSOURCE_CC1: Timer Capture Compare 1
Event source
TIM_EventSource_CC2: Timer Capture Compare 2
Event source
TIM_EventSource_CC3: Timer Capture Compare 3
Event source
TIM_EventSource_CC4: Timer Capture Compare 4
Event source
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TIM_EVENTSOURCE_TRIGGER : Timer Trigger Event
source
Return values
HAL: status
Notes
TIM6 can only generate an update event.
HAL_TIM_ReadCapturedValue
Function name
uint32_t HAL_TIM_ReadCapturedValue (TIM_HandleTypeDef *
htim, uint32_t Channel)
Function description
Read the captured value from Capture Compare unit.
Parameters
htim: : TIM handle
Channel: TIM Channels to be enabled. This parameter can
be one of the following values:
TIM_CHANNEL_1: TIM Channel 1 selected
TIM_CHANNEL_2: TIM Channel 2 selected
TIM_CHANNEL_3: TIM Channel 3 selected
TIM_CHANNEL_4: TIM Channel 4 selected
Return values
Captured: value
HAL_TIM_PeriodElapsedCallback
Function name
void HAL_TIM_PeriodElapsedCallback (TIM_HandleTypeDef *
htim)
Function description
Period elapsed callback in non blocking mode.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_OC_DelayElapsedCallback
Function name
void HAL_TIM_OC_DelayElapsedCallback
(TIM_HandleTypeDef * htim)
Function description
Output Compare callback in non blocking mode.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_IC_CaptureCallback
Function name
void HAL_TIM_IC_CaptureCallback (TIM_HandleTypeDef *
htim)
Function description
Input Capture callback in non blocking mode.
Parameters
htim: TIM IC handle
Return values
None
HAL_TIM_PWM_PulseFinishedCallback
Function name
void HAL_TIM_PWM_PulseFinishedCallback
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(TIM_HandleTypeDef * htim)
Function description
PWM Pulse finished callback in non blocking mode.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_TriggerCallback
Function name
void HAL_TIM_TriggerCallback (TIM_HandleTypeDef * htim)
Function description
Hall Trigger detection callback in non blocking mode.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_ErrorCallback
Function name
void HAL_TIM_ErrorCallback (TIM_HandleTypeDef * htim)
Function description
Timer error callback in non blocking mode.
Parameters
htim: : TIM handle
Return values
None
HAL_TIM_Base_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_Base_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM Base state.
Parameters
htim: : TIM handle
Return values
HAL: state
HAL_TIM_OC_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_OC_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM OC state.
Parameters
htim: TIM Ouput Compare handle
Return values
HAL: state
HAL_TIM_PWM_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_PWM_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM PWM state.
Parameters
htim: : TIM handle
Return values
HAL: state
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HAL_TIM_IC_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_IC_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM Input Capture state.
Parameters
htim: : TIM handle
Return values
HAL: state
HAL_TIM_OnePulse_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_OnePulse_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM One Pulse Mode state.
Parameters
htim: TIM OPM handle
Return values
HAL: state
HAL_TIM_Encoder_GetState
Function name
HAL_TIM_StateTypeDef HAL_TIM_Encoder_GetState
(TIM_HandleTypeDef * htim)
Function description
Return the TIM Encoder Mode state.
Parameters
htim: : TIM handle
Return values
HAL: state
TIM_DMADelayPulseCplt
Function name
void TIM_DMADelayPulseCplt (DMA_HandleTypeDef * hdma)
Function description
TIM DMA Delay Pulse complete callback.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
module.
Return values
None
TIM_DMAError
Function name
void TIM_DMAError (DMA_HandleTypeDef * hdma)
Function description
TIM DMA error callback.
Parameters
hdma: pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
module.
Return values
None
TIM_DMACaptureCplt
Function name
void TIM_DMACaptureCplt (DMA_HandleTypeDef * hdma)
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Function description
TIM DMA Capture complete callback.
Parameters
hdma: : pointer to a DMA_HandleTypeDef structure that
contains the configuration information for the specified DMA
module.
Return values
None
45.3 TIM Firmware driver defines
45.3.1 TIM
TIM channels
TIM_CHANNEL_1
TIM_CHANNEL_2
TIM_CHANNEL_3
TIM_CHANNEL_4
TIM_CHANNEL_ALL
Clear input polarity
TIM_CLEARINPUTPOLARITY_INVERTED
Polarity for ETRx pin
TIM_CLEARINPUTPOLARITY_NONINVERTED
Polarity for ETRx pin
Clear input prescaler
TIM_CLEARINPUTPRESCALER_DIV1
No prescaler is used
TIM_CLEARINPUTPRESCALER_DIV2
Prescaler for External ETR pin: Capture
performed once every 2 events.
TIM_CLEARINPUTPRESCALER_DIV4
Prescaler for External ETR pin: Capture
performed once every 4 events.
TIM_CLEARINPUTPRESCALER_DIV8
Prescaler for External ETR pin: Capture
performed once every 8 events.
Clear input source
TIM_CLEARINPUTSOURCE_ETR
TIM_CLEARINPUTSOURCE_NONE
Clock division
TIM_CLOCKDIVISION_DIV1
TIM_CLOCKDIVISION_DIV2
TIM_CLOCKDIVISION_DIV4
Clock polarity
TIM_CLOCKPOLARITY_INVERTED
Polarity for ETRx clock sources
TIM_CLOCKPOLARITY_NONINVERTED
Polarity for ETRx clock sources
TIM_CLOCKPOLARITY_RISING
Polarity for TIx clock sources
TIM_CLOCKPOLARITY_FALLING
Polarity for TIx clock sources
TIM_CLOCKPOLARITY_BOTHEDGE
Polarity for TIx clock sources
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Clock prescaler
TIM_CLOCKPRESCALER_DIV1
No prescaler is used
TIM_CLOCKPRESCALER_DIV2
Prescaler for External ETR Clock: Capture performed
once every 2 events.
TIM_CLOCKPRESCALER_DIV4
Prescaler for External ETR Clock: Capture performed
once every 4 events.
TIM_CLOCKPRESCALER_DIV8
Prescaler for External ETR Clock: Capture performed
once every 8 events.
Clock source
TIM_CLOCKSOURCE_ETRMODE2
TIM_CLOCKSOURCE_INTERNAL
TIM_CLOCKSOURCE_ITR0
TIM_CLOCKSOURCE_ITR1
TIM_CLOCKSOURCE_ITR2
TIM_CLOCKSOURCE_ITR3
TIM_CLOCKSOURCE_TI1ED
TIM_CLOCKSOURCE_TI1
TIM_CLOCKSOURCE_TI2
TIM_CLOCKSOURCE_ETRMODE1
Counter mode
TIM_COUNTERMODE_UP
TIM_COUNTERMODE_DOWN
TIM_COUNTERMODE_CENTERALIGNED1
TIM_COUNTERMODE_CENTERALIGNED2
TIM_COUNTERMODE_CENTERALIGNED3
DMA base address
TIM_DMABASE_CR1
TIM_DMABASE_CR2
TIM_DMABASE_SMCR
TIM_DMABASE_DIER
TIM_DMABASE_SR
TIM_DMABASE_EGR
TIM_DMABASE_CCMR1
TIM_DMABASE_CCMR2
TIM_DMABASE_CCER
TIM_DMABASE_CNT
TIM_DMABASE_PSC
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TIM_DMABASE_ARR
TIM_DMABASE_CCR1
TIM_DMABASE_CCR2
TIM_DMABASE_CCR3
TIM_DMABASE_CCR4
TIM_DMABASE_DCR
TIM_DMABASE_OR
DMA burst length
TIM_DMABURSTLENGTH_1TRANSFER
TIM_DMABURSTLENGTH_2TRANSFERS
TIM_DMABURSTLENGTH_3TRANSFERS
TIM_DMABURSTLENGTH_4TRANSFERS
TIM_DMABURSTLENGTH_5TRANSFERS
TIM_DMABURSTLENGTH_6TRANSFERS
TIM_DMABURSTLENGTH_7TRANSFERS
TIM_DMABURSTLENGTH_8TRANSFERS
TIM_DMABURSTLENGTH_9TRANSFERS
TIM_DMABURSTLENGTH_10TRANSFERS
TIM_DMABURSTLENGTH_11TRANSFERS
TIM_DMABURSTLENGTH_12TRANSFERS
TIM_DMABURSTLENGTH_13TRANSFERS
TIM_DMABURSTLENGTH_14TRANSFERS
TIM_DMABURSTLENGTH_15TRANSFERS
TIM_DMABURSTLENGTH_16TRANSFERS
TIM_DMABURSTLENGTH_17TRANSFERS
TIM_DMABURSTLENGTH_18TRANSFERS
DMA sources
TIM_DMA_UPDATE
TIM_DMA_CC1
TIM_DMA_CC2
TIM_DMA_CC3
TIM_DMA_CC4
TIM_DMA_TRIGGER
Encoder_Mode
TIM_ENCODERMODE_TI1
TIM_ENCODERMODE_TI2
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TIM_ENCODERMODE_TI12
ETR polarity
TIM_ETRPOLARITY_INVERTED
Polarity for ETR source
TIM_ETRPOLARITY_NONINVERTED
Polarity for ETR source
ETR prescaler
TIM_ETRPRESCALER_DIV1
No prescaler is used
TIM_ETRPRESCALER_DIV2
ETR input source is divided by 2
TIM_ETRPRESCALER_DIV4
ETR input source is divided by 4
TIM_ETRPRESCALER_DIV8
ETR input source is divided by 8
Event sources
TIM_EVENTSOURCE_UPDATE
TIM_EVENTSOURCE_CC1
TIM_EVENTSOURCE_CC2
TIM_EVENTSOURCE_CC3
TIM_EVENTSOURCE_CC4
TIM_EVENTSOURCE_TRIGGER
TIM Exported Constants
IS_TIM_PERIOD
IS_TIM_PRESCALER
IS_TIM_COUNTER_MODE
IS_TIM_CLOCKDIVISION_DIV
IS_TIM_PWM_MODE
IS_TIM_OC_MODE
IS_TIM_FAST_STATE
IS_TIM_OC_POLARITY
IS_TIM_CHANNELS
IS_TIM_OPM_CHANNELS
IS_TIM_IC_POLARITY
IS_TIM_IC_PRESCALER
IS_TIM_OPM_MODE
IS_TIM_ENCODER_MODE
IS_TIM_DMA_SOURCE
IS_TIM_EVENT_SOURCE
IS_TIM_CLOCKSOURCE
IS_TIM_CLOCKPOLARITY
IS_TIM_CLOCKPRESCALER
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IS_TIM_CLOCKFILTER
IS_TIM_CLEARINPUT_SOURCE
IS_TIM_CLEARINPUT_POLARITY
IS_TIM_CLEARINPUT_PRESCALER
IS_TIM_CLEARINPUT_FILTER
IS_TIM_TRGO_SOURCE
IS_TIM_SLAVE_MODE
IS_TIM_MSM_STATE
IS_TIM_TRIGGER_SELECTION
IS_TIM_INTERNAL_TRIGGEREVENT_SELECTION
IS_TIM_TRIGGERPOLARITY
IS_TIM_TRIGGERPRESCALER
IS_TIM_TRIGGERFILTER
IS_TIM_TI1SELECTION
IS_TIM_DMA_BASE
IS_TIM_DMA_LENGTH
IS_TIM_IC_FILTER
TIM Exported Macro
__HAL_TIM_RESET_HANDLE_ST
ATE
Description:
Reset UART handle state.
Parameters:
__HANDLE__: : TIM handle
Return value:
None
__HAL_TIM_ENABLE
Description:
Enable the TIM peripheral.
Parameters:
__HANDLE__: : TIM handle
Return value:
None
TIM_CCER_CCxE_MASK
__HAL_TIM_DISABLE
Description:
Disable the TIM peripheral.
Parameters:
__HANDLE__: : TIM handle
Return value:
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None
__HAL_TIM_ENABLE_IT
__HAL_TIM_ENABLE_DMA
__HAL_TIM_DISABLE_IT
__HAL_TIM_DISABLE_DMA
__HAL_TIM_GET_FLAG
__HAL_TIM_CLEAR_FLAG
__HAL_TIM_GET_IT_SOURCE
__HAL_TIM_CLEAR_IT
__HAL_TIM_IS_TIM_COUNTING_
DOWN
__HAL_TIM_SET_PRESCALER
TIM_SET_ICPRESCALERVALUE
TIM_RESET_ICPRESCALERVAL
UE
TIM_SET_CAPTUREPOLARITY
TIM_RESET_CAPTURE
POLARITY
__HAL_TIM_SET_COMPARE
Description:
Sets the TIM Capture Compare Register value
on runtime without calling another time
ConfigChannel function.
Parameters:
__HANDLE__: : TIM handle.
__CHANNEL__: : TIM Channels to be
configured. This parameter can be one of the
following values:
TIM_CHANNEL_1: TIM Channel 1
selected
TIM_CHANNEL_2: TIM Channel 2
selected
TIM_CHANNEL_3: TIM Channel 3
selected
TIM_CHANNEL_4: TIM Channel 4
selected
__COMPARE__: specifies the Capture
Compare register new value.
Return value:
None
__HAL_TIM_GET_COMPARE
Description:
Gets the TIM Capture Compare Register value
on runtime.
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Parameters:
__HANDLE__: : TIM handle.
__CHANNEL__: : TIM Channel associated with
the capture compare register This parameter
can be one of the following values:
TIM_CHANNEL_1: get capture/compare 1
register value
TIM_CHANNEL_2: get capture/compare 2
register value
TIM_CHANNEL_3: get capture/compare 3
register value
TIM_CHANNEL_4: get capture/compare 4
register value
Return value:
None
__HAL_TIM_SET_COUNTER
Description:
Sets the TIM Counter Register value on
runtime.
Parameters:
__HANDLE__: : TIM handle.
__COUNTER__: specifies the Counter register
new value.
Return value:
None
__HAL_TIM_GET_COUNTER
Description:
Gets the TIM Counter Register value on
runtime.
Parameters:
__HANDLE__: : TIM handle.
Return value:
None
__HAL_TIM_SET_AUTORELOAD
Description:
Sets the TIM Autoreload Register value on
runtime without calling another time any Init
function.
Parameters:
__HANDLE__: : TIM handle.
__AUTORELOAD__: specifies the Counter
register new value.
Return value:
None
__HAL_TIM_GET_AUTORELOAD
Description:
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Gets the TIM Autoreload Register value on
runtime.
Parameters:
__HANDLE__: : TIM handle.
Return value:
None
__HAL_TIM_SET_CLOCK
DIVISION
Description:
Sets the TIM Clock Division value on runtime
without calling another time any Init function.
Parameters:
__HANDLE__: : TIM handle.
__CKD__: specifies the clock division value.
This parameter can be one of the following
value:
TIM_CLOCKDIVISION_DIV1
TIM_CLOCKDIVISION_DIV2
TIM_CLOCKDIVISION_DIV4
Return value:
None
__HAL_TIM_GET_CLOCK
DIVISION
Description:
Gets the TIM Clock Division value on runtime.
Parameters:
__HANDLE__: : TIM handle.
Return value:
None
__HAL_TIM_SET_ICPRESCALER
Description:
Sets the TIM Input Capture prescaler on
runtime without calling another time
Parameters:
__HANDLE__: : TIM handle.
__CHANNEL__: : TIM Channels to be
configured. This parameter can be one of the
following values:
TIM_CHANNEL_1: TIM Channel 1
selected
TIM_CHANNEL_2: TIM Channel 2
selected
TIM_CHANNEL_3: TIM Channel 3
selected
TIM_CHANNEL_4: TIM Channel 4
selected
__ICPSC__: specifies the Input Capture4
prescaler new value. This parameter can be
one of the following values:
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TIM_ICPSC_DIV1: no prescaler
TIM_ICPSC_DIV2: capture is done once
every 2 events
TIM_ICPSC_DIV4: capture is done once
every 4 events
TIM_ICPSC_DIV8: capture is done once
every 8 events
Return value:
None
__HAL_TIM_GET_ICPRESCALER
Description:
Gets the TIM Input Capture prescaler on
runtime.
Parameters:
__HANDLE__: : TIM handle.
__CHANNEL__: : TIM Channels to be
configured. This parameter can be one of the
following values:
TIM_CHANNEL_1: get input capture 1
prescaler value
TIM_CHANNEL_2: get input capture 2
prescaler value
TIM_CHANNEL_3: get input capture 3
prescaler value
TIM_CHANNEL_4: get input capture 4
prescaler value
Return value:
None
__HAL_TIM_URS_ENABLE
Description:
Set the Update Request Source (URS) bit of the
TIMx_CR1 register.
Parameters:
__HANDLE__: TIM handle.
Return value:
None
Notes:
When the URS bit of the TIMx_CR1 register is
set, only counter overflow/underflow generates
an update interrupt or DMA request (if enabled)
__HAL_TIM_URS_DISABLE
Description:
Reset the Update Request Source (URS) bit of
the TIMx_CR1 register.
Parameters:
__HANDLE__: TIM handle.
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Return value:
None
Notes:
When the URS bit of the TIMx_CR1 register is
reset, any of the following events generate an
update interrupt or DMA request (if enabled):
Counter overflow/underflow Setting the UG bit
Update generation through the slave mode
controller
__HAL_TIM_SET_CAPTURE
POLARITY
Description:
Sets the TIM Capture x input polarity on
runtime.
Parameters:
__HANDLE__: TIM handle.
__CHANNEL__: TIM Channels to be
configured. This parameter can be one of the
following values:
TIM_CHANNEL_1: TIM Channel 1
selected
TIM_CHANNEL_2: TIM Channel 2
selected
TIM_CHANNEL_3: TIM Channel 3
selected
TIM_CHANNEL_4: TIM Channel 4
selected
__POLARITY__: Polarity for TIx source
TIM_INPUTCHANNELPOLARITY_RISING
: Rising Edge
TIM_INPUTCHANNELPOLARITY_FALLIN
G: Falling Edge
TIM_INPUTCHANNELPOLARITY_BOTHE
DGE: Rising and Falling Edge
Return value:
None
Notes:
The polarity
TIM_INPUTCHANNELPOLARITY_BOTHEDGE
is not authorized for TIM Channel 4.
Flag definition
TIM_FLAG_UPDATE
TIM_FLAG_CC1
TIM_FLAG_CC2
TIM_FLAG_CC3
TIM_FLAG_CC4
TIM_FLAG_TRIGGER
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TIM_FLAG_CC1OF
TIM_FLAG_CC2OF
TIM_FLAG_CC3OF
TIM_FLAG_CC4OF
Input capture polarity
TIM_ICPOLARITY_RISING
TIM_ICPOLARITY_FALLING
TIM_ICPOLARITY_BOTHEDGE
Input capture prescaler
TIM_ICPSC_DIV1
Capture performed each time an edge is detected on the capture
input
TIM_ICPSC_DIV2
Capture performed once every 2 events
TIM_ICPSC_DIV4
Capture performed once every 4 events
TIM_ICPSC_DIV8
Capture performed once every 8 events
Input capture selection
TIM_ICSELECTION_DIRECTTI
TIM Input 1, 2, 3 or 4 is selected to be connected to
IC1, IC2, IC3 or IC4, respectively
TIM_ICSELECTION_INDIRECTTI
TIM Input 1, 2, 3 or 4 is selected to be connected to
IC2, IC1, IC4 or IC3, respectively
TIM_ICSELECTION_TRC
TIM Input 1, 2, 3 or 4 is selected to be connected to
TRC
IS_TIM_IC_SELECTION
Input channel polarity
TIM_INPUTCHANNELPOLARITY_RISING
Polarity for TIx source
TIM_INPUTCHANNELPOLARITY_FALLING
Polarity for TIx source
TIM_INPUTCHANNELPOLARITY_BOTHEDGE
Polarity for TIx source
Interrupt definition
TIM_IT_UPDATE
TIM_IT_CC1
TIM_IT_CC2
TIM_IT_CC3
TIM_IT_CC4
TIM_IT_TRIGGER
TIM Master Mode Selection
TIM_TRGO_RESET
TIM_TRGO_ENABLE
TIM_TRGO_UPDATE
TIM_TRGO_OC1
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TIM_TRGO_OC1REF
TIM_TRGO_OC2REF
TIM_TRGO_OC3REF
TIM_TRGO_OC4REF
Master slave mode
TIM_MASTERSLAVEMODE_ENABLE
TIM_MASTERSLAVEMODE_DISABLE
One pulse mode
TIM_OPMODE_SINGLE
TIM_OPMODE_REPETITIVE
Output compare and PWM modes
TIM_OCMODE_TIMING
TIM_OCMODE_ACTIVE
TIM_OCMODE_INACTIVE
TIM_OCMODE_TOGGLE
TIM_OCMODE_PWM1
TIM_OCMODE_PWM2
TIM_OCMODE_FORCED_ACTIVE
TIM_OCMODE_FORCED_INACTIVE
Output compare N state
TIM_OUTPUTNSTATE_DISABLE
TIM_OUTPUTNSTATE_ENABLE
Output compare polarity
TIM_OCPOLARITY_HIGH
TIM_OCPOLARITY_LOW
Output compare state
TIM_OUTPUTSTATE_DISABLE
TIM_OUTPUTSTATE_ENABLE
Output fast state
TIM_OCFAST_DISABLE
TIM_OCFAST_ENABLE
Slave mode
TIM_SLAVEMODE_DISABLE
TIM_SLAVEMODE_RESET
TIM_SLAVEMODE_GATED
TIM_SLAVEMODE_TRIGGER
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TIM_SLAVEMODE_EXTERNAL1
TI1 selection
TIM_TI1SELECTION_CH1
TIM_TI1SELECTION_XORCOMBINATION
Trigger polarity
TIM_TRIGGERPOLARITY_INVERTED
Polarity for ETRx trigger sources
TIM_TRIGGERPOLARITY_NONINVERTED
Polarity for ETRx trigger sources
TIM_TRIGGERPOLARITY_RISING
Polarity for TIxFPx or TI1_ED trigger
sources
TIM_TRIGGERPOLARITY_FALLING
Polarity for TIxFPx or TI1_ED trigger
sources
TIM_TRIGGERPOLARITY_BOTHEDGE
Polarity for TIxFPx or TI1_ED trigger
sources
Trigger prescaler
TIM_TRIGGERPRESCALER_DIV1
No prescaler is used
TIM_TRIGGERPRESCALER_DIV2
Prescaler for External ETR Trigger: Capture
performed once every 2 events.
TIM_TRIGGERPRESCALER_DIV4
Prescaler for External ETR Trigger: Capture
performed once every 4 events.
TIM_TRIGGERPRESCALER_DIV8
Prescaler for External ETR Trigger: Capture
performed once every 8 events.
Trigger selection
TIM_TS_ITR0
TIM_TS_ITR1
TIM_TS_ITR2
TIM_TS_ITR3
TIM_TS_TI1F_ED
TIM_TS_TI1FP1
TIM_TS_TI2FP2
TIM_TS_ETRF
TIM_TS_NONE
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46 HAL TIM Extension Driver
46.1 TIMEx Firmware driver registers structures
46.1.1 TIM_MasterConfigTypeDef
Data Fields
uint32_t MasterOutputTrigger
uint32_t MasterSlaveMode
Field Documentation
uint32_t TIM_MasterConfigTypeDef::MasterOutputTrigger
Trigger output (TRGO) selection This parameter can be a value of
TIM_Master_Mode_Selection
uint32_t TIM_MasterConfigTypeDef::MasterSlaveMode
Master/slave mode selection This parameter can be a value of
TIM_Master_Slave_Mode
46.2 TIMEx Firmware driver API description
46.2.1 TIM specific features integration
The Timer features include:
1. 16-bit up, down, up/down auto-reload counter.
2. 16-bit programmable prescaler allowing dividing (also on the fly) the counter clock
frequency either by any factor between 1 and 65536.
3. Up to 4 independent channels for: Input Capture Output Compare PWM generation
(Edge and Center-aligned Mode) One-pulse mode output
4. Synchronization circuit to control the timer with external signals and to interconnect
several timers together.
5. Supports incremental (quadrature) encoder and hall-sensor circuitry for positioning
purposes
46.2.2 How to use this driver
1. Enable the TIM interface clock using __HAL_RCC_TIMx_CLK_ENABLE();
2. TIM pins configuration
Enable the clock for the TIM GPIOs using the following function:
__HAL_RCC_GPIOx_CLK_ENABLE();
Configure these TIM pins in Alternate function mode using HAL_GPIO_Init();
3. The external Clock can be configured, if needed (the default clock is the internal clock
from the APBx), using the following function: HAL_TIM_ConfigClockSource, the clock
configuration should be done before any start function.
4. Configure the TIM in the desired operating mode using one of the configuration
function of this driver:
HAL_TIMEx_MasterConfigSynchronization() to configure the peripheral in master
mode.
5. Remap the Timer I/O using HAL_TIMEx_RemapConfig() API.
46.2.3 Peripheral Control functions
This section provides functions allowing to:
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Configure Master and the Slave synchronization.
This section contains the following APIs:
HAL_TIMEx_MasterConfigSynchronization()
HAL_TIMEx_RemapConfig()
46.2.4 Detailed description of functions
HAL_TIMEx_RemapConfig
Function name
HAL_StatusTypeDef HAL_TIMEx_RemapConfig
(TIM_HandleTypeDef * htim, uint32_t Remap)
Function description
Configures the remapping of the TIM2, TIM3, TIM21 and TIM22
inputs.
Parameters
htim: pointer to a TIM_HandleTypeDef structure that
contains the configuration information for TIM module.
Remap: specifies the TIM input remapping source. This
parameter is a combination of the following values depending
on TIM instance:
Return values
HAL: status
Notes
It is not possible to connect TIM2 and TIM21 on GPIOB5_AF4
at the same time. When selecting TIM3_TI2_GPIOB5_AF4,
Channel2 of TIM3 will be connected to GPIOB5_AF4 and
Channel2 of TIM22 will be connected to some other GPIOs.
(refer to alternate functions for more details) When selecting
TIM3_TI2_GPIO_DEF, Channel2 of Timer 3 will be connected
an GPIO (other than GPIOB5_AF4) and Channel2 of TIM22
will be connected to GPIOB5_AF4.
HAL_TIMEx_MasterConfigSynchronization
Function name
HAL_StatusTypeDef
HAL_TIMEx_MasterConfigSynchronization
(TIM_HandleTypeDef * htim, TIM_MasterConfigTypeDef *
sMasterConfig)
Function description
Configures the TIM in master mode.
Parameters
htim: TIM handle.
sMasterConfig: pointer to a TIM_MasterConfigTypeDef
structure that contains the selected trigger output (TRGO) and
the Master/Slave mode.
Return values
HAL: status
46.3 TIMEx Firmware driver defines
46.3.1 TIMEx
Remaping
TIM2_ETR_GPIO
TIM2_ETR_HSI48
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TIM2_ETR_HSI16
TIM2_ETR_LSE
TIM2_ETR_COMP2_OUT
TIM2_ETR_COMP1_OUT
TIM2_TI4_GPIO
TIM2_TI4_COMP2
TIM2_TI4_COMP1
TIM21_ETR_GPIO
TIM21_ETR_COMP2_OUT
TIM21_ETR_COMP1_OUT
TIM21_ETR_LSE
TIM21_TI1_GPIO
TIM21_TI1_MCO
TIM21_TI1_RTC_WKUT_IT
TIM21_TI1_HSE_RTC
TIM21_TI1_MSI
TIM21_TI1_LSE
TIM21_TI1_LSI
TIM21_TI1_COMP1_OUT
TIM21_TI2_GPIO
TIM21_TI2_COMP2_OUT
TIM22_ETR_GPIO
TIM22_ETR_COMP2_OUT
TIM22_ETR_COMP1_OUT
TIM22_ETR_LSE
TIM22_TI1_GPIO1
TIM22_TI1_COMP2_OUT
TIM22_TI1_COMP1_OUT
TIM22_TI1_GPIO2
TIM3_TI4_GPIO_DEF
TIM3_TI4_GPIOC9_AF2
TIM3_TI2_GPIO_DEF
TIM3_TI2_GPIOB5_AF4
TIM3_TI1_USB_SOF
TIM3_TI1_GPIO
TIM3_ETR_GPIO
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TIM3_ETR_HSI
IS_TIM_REMAP
IS_CHANNEL_AVAILABLE
Trigger selection
TIM_TRGO_RESET
TIM_TRGO_ENABLE
TIM_TRGO_UPDATE
TIM_TRGO_OC1
TIM_TRGO_OC1REF
TIM_TRGO_OC2REF
TIM_TRGO_OC3REF
TIM_TRGO_OC4REF
IS_TIM_TRGO_SOURCE
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47 HAL TSC Generic Driver
47.1 TSC Firmware driver registers structures
47.1.1 TSC_InitTypeDef
Data Fields
uint32_t CTPulseHighLength
uint32_t CTPulseLowLength
uint32_t SpreadSpectrum
uint32_t SpreadSpectrumDeviation
uint32_t SpreadSpectrumPrescaler
uint32_t PulseGeneratorPrescaler
uint32_t MaxCountValue
uint32_t IODefaultMode
uint32_t SynchroPinPolarity
uint32_t AcquisitionMode
uint32_t MaxCountInterrupt
uint32_t ChannelIOs
uint32_t ShieldIOs
uint32_t SamplingIOs
Field Documentation
uint32_t TSC_InitTypeDef::CTPulseHighLength
Charge-transfer high pulse length
uint32_t TSC_InitTypeDef::CTPulseLowLength
Charge-transfer low pulse length
uint32_t TSC_InitTypeDef::SpreadSpectrum
Spread spectrum activation
uint32_t TSC_InitTypeDef::SpreadSpectrumDeviation
Spread spectrum deviation
uint32_t TSC_InitTypeDef::SpreadSpectrumPrescaler
Spread spectrum prescaler
uint32_t TSC_InitTypeDef::PulseGeneratorPrescaler
Pulse generator prescaler
uint32_t TSC_InitTypeDef::MaxCountValue
Max count value
uint32_t TSC_InitTypeDef::IODefaultMode
IO default mode
uint32_t TSC_InitTypeDef::SynchroPinPolarity
Synchro pin polarity
uint32_t TSC_InitTypeDef::AcquisitionMode
Acquisition mode
uint32_t TSC_InitTypeDef::MaxCountInterrupt
Max count interrupt activation
uint32_t TSC_InitTypeDef::ChannelIOs
Channel IOs mask
uint32_t TSC_InitTypeDef::ShieldIOs
Shield IOs mask
uint32_t TSC_InitTypeDef::SamplingIOs
Sampling IOs mask
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47.1.2 TSC_IOConfigTypeDef
Data Fields
uint32_t ChannelIOs
uint32_t ShieldIOs
uint32_t SamplingIOs
Field Documentation
uint32_t TSC_IOConfigTypeDef::ChannelIOs
Channel IOs mask
uint32_t TSC_IOConfigTypeDef::ShieldIOs
Shield IOs mask
uint32_t TSC_IOConfigTypeDef::SamplingIOs
Sampling IOs mask
47.1.3 TSC_HandleTypeDef
Data Fields
TSC_TypeDef * Instance
TSC_InitTypeDef Init
__IO HAL_TSC_StateTypeDef State
HAL_LockTypeDef Lock
Field Documentation
TSC_TypeDef* TSC_HandleTypeDef::Instance
Register base address
TSC_InitTypeDef TSC_HandleTypeDef::Init
Initialization parameters
__IO HAL_TSC_StateTypeDef TSC_HandleTypeDef::State
Peripheral state
HAL_LockTypeDef TSC_HandleTypeDef::Lock
Lock feature
47.2 TSC Firmware driver API description
47.2.1 TSC specific features
1. Proven and robust surface charge transfer acquisition principle
2. Supports up to 3 capacitive sensing channels per group
3. Capacitive sensing channels can be acquired in parallel offering a very good response
time
4. Spread spectrum feature to improve system robustness in noisy environments
5. Full hardware management of the charge transfer acquisition sequence
6. Programmable charge transfer frequency
7. Programmable sampling capacitor I/O pin
8. Programmable channel I/O pin
9. Programmable max count value to avoid long acquisition when a channel is faulty
10. Dedicated end of acquisition and max count error flags with interrupt capability
11. One sampling capacitor for up to 3 capacitive sensing channels to reduce the system
components
12. Compatible with proximity, touchkey, linear and rotary touch sensor implementation
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47.2.2 How to use this driver
1. Enable the TSC interface clock using __HAL_RCC_TSC_CLK_ENABLE() macro.
2. GPIO pins configuration
Enable the clock for the TSC GPIOs using __HAL_RCC_GPIOx_CLK_ENABLE()
macro.
Configure the TSC pins used as sampling IOs in alternate function output Open-
Drain mode, and TSC pins used as channel/shield IOs in alternate function
output Push-Pull mode using HAL_GPIO_Init() function.
Configure the alternate function on all the TSC pins using HAL_xxxx() function.
3. Interrupts configuration
Configure the NVIC (if the interrupt model is used) using HAL_xxx() function.
4. TSC configuration
Configure all TSC parameters and used TSC IOs using HAL_TSC_Init() function.
Acquisition sequence
Discharge all IOs using HAL_TSC_IODischarge() function.
Wait a certain time allowing a good discharge of all capacitors. This delay depends of
the sampling capacitor and electrodes design.
Select the channel IOs to be acquired using HAL_TSC_IOConfig() function.
Launch the acquisition using either HAL_TSC_Start() or HAL_TSC_Start_IT()
function. If the synchronized mode is selected, the acquisition will start as soon as the
signal is received on the synchro pin.
Wait the end of acquisition using either HAL_TSC_PollForAcquisition() or
HAL_TSC_GetState() function or using WFI instruction for example.
Check the group acquisition status using HAL_TSC_GroupGetStatus() function.
Read the acquisition value using HAL_TSC_GroupGetValue() function.
47.2.3 IO Operation functions
This section provides functions allowing to:
Start acquisition in polling mode.
Start acquisition in interrupt mode.
Stop conversion in polling mode.
Stop conversion in interrupt mode.
Get group acquisition status.
Get group acquisition value.
This section contains the following APIs:
HAL_TSC_Start()
HAL_TSC_Start_IT()
HAL_TSC_Stop()
HAL_TSC_Stop_IT()
HAL_TSC_GroupGetStatus()
HAL_TSC_GroupGetValue()
HAL_TSC_PollForAcquisition()
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47.2.4 Peripheral Control functions
This section provides functions allowing to:
Configure TSC IOs
Discharge TSC IOs
This section contains the following APIs:
HAL_TSC_IOConfig()
HAL_TSC_IODischarge()
47.2.5 State functions
This subsection provides functions allowing to
Get TSC state.
Poll for acquisition completed.
Handles TSC interrupt request.
This section contains the following APIs:
HAL_TSC_GetState()
HAL_TSC_PollForAcquisition()
HAL_TSC_IRQHandler()
HAL_TSC_ConvCpltCallback()
HAL_TSC_ErrorCallback()
47.2.6 Initialization and de-initialization functions
This section provides functions allowing to:
Initialize and configure the TSC.
De-initialize the TSC.
This section contains the following APIs:
HAL_TSC_Init()
HAL_TSC_DeInit()
HAL_TSC_MspInit()
HAL_TSC_MspDeInit()
47.2.7 Detailed description of functions
HAL_TSC_Init
Function name
HAL_StatusTypeDef HAL_TSC_Init (TSC_HandleTypeDef *
htsc)
Function description
Initializes the TSC peripheral according to the specified
parameters in the TSC_InitTypeDef structure.
Parameters
htsc: TSC handle
Return values
HAL: status
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HAL_TSC_DeInit
Function name
HAL_StatusTypeDef HAL_TSC_DeInit (TSC_HandleTypeDef *
htsc)
Function description
Deinitializes the TSC peripheral registers to their default reset
values.
Parameters
htsc: TSC handle
Return values
HAL: status
HAL_TSC_MspInit
Function name
void HAL_TSC_MspInit (TSC_HandleTypeDef * htsc)
Function description
Initializes the TSC MSP.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
None
HAL_TSC_MspDeInit
Function name
void HAL_TSC_MspDeInit (TSC_HandleTypeDef * htsc)
Function description
DeInitializes the TSC MSP.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
None
HAL_TSC_Start
Function name
HAL_StatusTypeDef HAL_TSC_Start (TSC_HandleTypeDef *
htsc)
Function description
Starts the acquisition.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: status
HAL_TSC_Start_IT
Function name
HAL_StatusTypeDef HAL_TSC_Start_IT (TSC_HandleTypeDef
* htsc)
Function description
Enables the interrupt and starts the acquisition.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: status.
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HAL_TSC_Stop
Function name
HAL_StatusTypeDef HAL_TSC_Stop (TSC_HandleTypeDef *
htsc)
Function description
Stops the acquisition previously launched in polling mode.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: status
HAL_TSC_Stop_IT
Function name
HAL_StatusTypeDef HAL_TSC_Stop_IT (TSC_HandleTypeDef
* htsc)
Function description
Stops the acquisition previously launched in interrupt mode.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: status
HAL_TSC_PollForAcquisition
Function name
HAL_StatusTypeDef HAL_TSC_PollForAcquisition
(TSC_HandleTypeDef * htsc)
Function description
Start acquisition and wait until completion.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: state
Notes
There is no need of a timeout parameter as the max count
error is already managed by the TSC peripheral.
HAL_TSC_GroupGetStatus
Function name
TSC_GroupStatusTypeDef HAL_TSC_GroupGetStatus
(TSC_HandleTypeDef * htsc, uint32_t gx_index)
Function description
Gets the acquisition status for a group.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
gx_index: Index of the group
Return values
Group: status
HAL_TSC_GroupGetValue
Function name
uint32_t HAL_TSC_GroupGetValue (TSC_HandleTypeDef *
htsc, uint32_t gx_index)
Function description
Gets the acquisition measure for a group.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
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gx_index: Index of the group
Return values
Acquisition: measure
HAL_TSC_IOConfig
Function name
HAL_StatusTypeDef HAL_TSC_IOConfig
(TSC_HandleTypeDef * htsc, TSC_IOConfigTypeDef * config)
Function description
Configures TSC IOs.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
config: pointer to the configuration structure.
Return values
HAL: status
HAL_TSC_IODischarge
Function name
HAL_StatusTypeDef HAL_TSC_IODischarge
(TSC_HandleTypeDef * htsc, uint32_t choice)
Function description
Discharge TSC IOs.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
choice: enable or disable
Return values
HAL: status
HAL_TSC_GetState
Function name
HAL_TSC_StateTypeDef HAL_TSC_GetState
(TSC_HandleTypeDef * htsc)
Function description
Return the TSC state.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
HAL: state
HAL_TSC_IRQHandler
Function name
void HAL_TSC_IRQHandler (TSC_HandleTypeDef * htsc)
Function description
Handles TSC interrupt request.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
None
HAL_TSC_ConvCpltCallback
Function name
void HAL_TSC_ConvCpltCallback (TSC_HandleTypeDef *
htsc)
Function description
Acquisition completed callback in non blocking mode.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
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contains the configuration information for the specified TSC.
Return values
None
HAL_TSC_ErrorCallback
Function name
void HAL_TSC_ErrorCallback (TSC_HandleTypeDef * htsc)
Function description
Error callback in non blocking mode.
Parameters
htsc: pointer to a TSC_HandleTypeDef structure that
contains the configuration information for the specified TSC.
Return values
None
47.3 TSC Firmware driver defines
47.3.1 TSC
TSC Exported Constants
TSC_CTPH_1CYCLE
TSC_CTPH_2CYCLES
TSC_CTPH_3CYCLES
TSC_CTPH_4CYCLES
TSC_CTPH_5CYCLES
TSC_CTPH_6CYCLES
TSC_CTPH_7CYCLES
TSC_CTPH_8CYCLES
TSC_CTPH_9CYCLES
TSC_CTPH_10CYCLES
TSC_CTPH_11CYCLES
TSC_CTPH_12CYCLES
TSC_CTPH_13CYCLES
TSC_CTPH_14CYCLES
TSC_CTPH_15CYCLES
TSC_CTPH_16CYCLES
TSC_CTPL_1CYCLE
TSC_CTPL_2CYCLES
TSC_CTPL_3CYCLES
TSC_CTPL_4CYCLES
TSC_CTPL_5CYCLES
TSC_CTPL_6CYCLES
TSC_CTPL_7CYCLES
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TSC_CTPL_8CYCLES
TSC_CTPL_9CYCLES
TSC_CTPL_10CYCLES
TSC_CTPL_11CYCLES
TSC_CTPL_12CYCLES
TSC_CTPL_13CYCLES
TSC_CTPL_14CYCLES
TSC_CTPL_15CYCLES
TSC_CTPL_16CYCLES
TSC_SS_PRESC_DIV1
TSC_SS_PRESC_DIV2
TSC_PG_PRESC_DIV1
TSC_PG_PRESC_DIV2
TSC_PG_PRESC_DIV4
TSC_PG_PRESC_DIV8
TSC_PG_PRESC_DIV16
TSC_PG_PRESC_DIV32
TSC_PG_PRESC_DIV64
TSC_PG_PRESC_DIV128
TSC_MCV_255
TSC_MCV_511
TSC_MCV_1023
TSC_MCV_2047
TSC_MCV_4095
TSC_MCV_8191
TSC_MCV_16383
TSC_IODEF_OUT_PP_LOW
TSC_IODEF_IN_FLOAT
TSC_SYNC_POLARITY_FALLING
TSC_SYNC_POLARITY_RISING
TSC_ACQ_MODE_NORMAL
TSC_ACQ_MODE_SYNCHRO
TSC_IOMODE_UNUSED
TSC_IOMODE_CHANNEL
TSC_IOMODE_SHIELD
TSC_IOMODE_SAMPLING
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TSC_NB_OF_GROUPS
TSC_GROUP1
TSC_GROUP2
TSC_GROUP3
TSC_GROUP4
TSC_GROUP5
TSC_GROUP6
TSC_GROUP7
TSC_GROUP8
TSC_ALL_GROUPS
TSC_GROUP1_IDX
TSC_GROUP2_IDX
TSC_GROUP3_IDX
TSC_GROUP4_IDX
TSC_GROUP5_IDX
TSC_GROUP6_IDX
TSC_GROUP7_IDX
TSC_GROUP8_IDX
TSC_GROUP1_IO1
TSC_GROUP1_IO2
TSC_GROUP1_IO3
TSC_GROUP1_IO4
TSC_GROUP1_ALL_IOS
TSC_GROUP2_IO1
TSC_GROUP2_IO2
TSC_GROUP2_IO3
TSC_GROUP2_IO4
TSC_GROUP2_ALL_IOS
TSC_GROUP3_IO1
TSC_GROUP3_IO2
TSC_GROUP3_IO3
TSC_GROUP3_IO4
TSC_GROUP3_ALL_IOS
TSC_GROUP4_IO1
TSC_GROUP4_IO2
TSC_GROUP4_IO3
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TSC_GROUP4_IO4
TSC_GROUP4_ALL_IOS
TSC_GROUP5_IO1
TSC_GROUP5_IO2
TSC_GROUP5_IO3
TSC_GROUP5_IO4
TSC_GROUP5_ALL_IOS
TSC_GROUP6_IO1
TSC_GROUP6_IO2
TSC_GROUP6_IO3
TSC_GROUP6_IO4
TSC_GROUP6_ALL_IOS
TSC_GROUP7_IO1
TSC_GROUP7_IO2
TSC_GROUP7_IO3
TSC_GROUP7_IO4
TSC_GROUP7_ALL_IOS
TSC_GROUP8_IO1
TSC_GROUP8_IO2
TSC_GROUP8_IO3
TSC_GROUP8_IO4
TSC_GROUP8_ALL_IOS
TSC_ALL_GROUPS_ALL_IOS
TSC Exported Macros
__HAL_TSC_RESET_HANDLE_STATE
Description:
Reset TSC handle state.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_ENABLE
Description:
Enable the TSC peripheral.
Parameters:
__HANDLE__: TSC handle
Return value:
None
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__HAL_TSC_DISABLE
Description:
Disable the TSC peripheral.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_START_ACQ
Description:
Start acquisition.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_STOP_ACQ
Description:
Stop acquisition.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_SET_IODEF_OUTPPLOW
Description:
Set IO default mode to output push-
pull low.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_SET_IODEF_INFLOAT
Description:
Set IO default mode to input floating.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_SET_SYNC_POL_FALL
Description:
Set synchronization polarity to falling
edge.
Parameters:
__HANDLE__: TSC handle
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Return value:
None
__HAL_TSC_SET_SYNC_POL_RISE_HIGH
Description:
Set synchronization polarity to rising
edge and high level.
Parameters:
__HANDLE__: TSC handle
Return value:
None
__HAL_TSC_ENABLE_IT
Description:
Enable TSC interrupt.
Parameters:
__HANDLE__: TSC handle
__INTERRUPT__: TSC interrupt
Return value:
None
__HAL_TSC_DISABLE_IT
Description:
Disable TSC interrupt.
Parameters:
__HANDLE__: TSC handle
__INTERRUPT__: TSC interrupt
Return value:
None
__HAL_TSC_GET_IT_SOURCE
Description:
Check if the specified TSC interrupt
source is enabled or disabled.
Parameters:
__HANDLE__: TSC Handle
__INTERRUPT__: TSC interrupt
Return value:
SET: or RESET
__HAL_TSC_GET_FLAG
Description:
Get the selected TSC's flag status.
Parameters:
__HANDLE__: TSC handle
__FLAG__: TSC flag
Return value:
SET: or RESET
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__HAL_TSC_CLEAR_FLAG
Description:
Clear the TSC's pending flag.
Parameters:
__HANDLE__: TSC handle
__FLAG__: TSC flag
Return value:
None
__HAL_TSC_ENABLE_HYSTERESIS
Description:
Enable schmitt trigger hysteresis on a
group of IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_DISABLE_HYSTERESIS
Description:
Disable schmitt trigger hysteresis on a
group of IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_OPEN_ANALOG_SWITCH
Description:
Open analog switch on a group of IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_CLOSE_ANALOG_SWITCH
Description:
Close analog switch on a group of IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_ENABLE_CHANNEL
Description:
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Enable a group of IOs in channel
mode.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_DISABLE_CHANNEL
Description:
Disable a group of channel IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_ENABLE_SAMPLING
Description:
Enable a group of IOs in sampling
mode.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_DISABLE_SAMPLING
Description:
Disable a group of sampling IOs.
Parameters:
__HANDLE__: TSC handle
__GX_IOY_MASK__: IOs mask
Return value:
None
__HAL_TSC_ENABLE_GROUP
Description:
Enable acquisition groups.
Parameters:
__HANDLE__: TSC handle
__GX_MASK__: Groups mask
Return value:
None
__HAL_TSC_DISABLE_GROUP
Description:
Disable acquisition groups.
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Parameters:
__HANDLE__: TSC handle
__GX_MASK__: Groups mask
Return value:
None
__HAL_TSC_GET_GROUP_STATUS
Description:
Gets acquisition group status.
Parameters:
__HANDLE__: TSC Handle
__GX_INDEX__: Group index
Return value:
SET: or RESET
TSC Flags Definition
TSC_FLAG_EOA
TSC_FLAG_MCE
TSC Interrupts Definition
TSC_IT_EOA
TSC_IT_MCE
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48 HAL UART Generic Driver
48.1 UART Firmware driver registers structures
48.1.1 UART_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t WordLength
uint32_t StopBits
uint32_t Parity
uint32_t Mode
uint32_t HwFlowCtl
uint32_t OverSampling
uint32_t OneBitSampling
Field Documentation
uint32_t UART_InitTypeDef::BaudRate
This member configures the UART communication baud rate. The baud rate register
is computed using the following formula:If oversampling is 16 or in LIN mode, Baud
Rate Register = ((PCLKx) / ((huart->Init.BaudRate)))If oversampling is 8, Baud Rate
Register[15:4] = ((2 * PCLKx) / ((huart->Init.BaudRate)))[15:4] Baud Rate Register[3] =
0 Baud Rate Register[2:0] = (((2 * PCLKx) / ((huart->Init.BaudRate)))[3:0]) >> 1
uint32_t UART_InitTypeDef::WordLength
Specifies the number of data bits transmitted or received in a frame. This parameter
can be a value of UARTEx_Word_Length.
uint32_t UART_InitTypeDef::StopBits
Specifies the number of stop bits transmitted. This parameter can be a value of
UART_Stop_Bits.
uint32_t UART_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of UART_Parity
Note:When parity is enabled, the computed parity is inserted at the MSB position of
the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the
word length is set to 8 data bits).
uint32_t UART_InitTypeDef::Mode
Specifies whether the Receive or Transmit mode is enabled or disabled. This
parameter can be a value of UART_Mode.
uint32_t UART_InitTypeDef::HwFlowCtl
Specifies whether the hardware flow control mode is enabled or disabled. This
parameter can be a value of UART_Hardware_Flow_Control.
uint32_t UART_InitTypeDef::OverSampling
Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher
speed (up to f_PCLK/8). This parameter can be a value of UART_Over_Sampling.
uint32_t UART_InitTypeDef::OneBitSampling
Specifies whether a single sample or three samples' majority vote is selected.
Selecting the single sample method increases the receiver tolerance to clock
deviations. This parameter can be a value of UART_OneBit_Sampling.
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48.1.2 UART_AdvFeatureInitTypeDef
Data Fields
uint32_t AdvFeatureInit
uint32_t TxPinLevelInvert
uint32_t RxPinLevelInvert
uint32_t DataInvert
uint32_t Swap
uint32_t OverrunDisable
uint32_t DMADisableonRxError
uint32_t AutoBaudRateEnable
uint32_t AutoBaudRateMode
uint32_t MSBFirst
Field Documentation
uint32_t UART_AdvFeatureInitTypeDef::AdvFeatureInit
Specifies which advanced UART features is initialized. Several Advanced Features
may be initialized at the same time . This parameter can be a value of
UART_Advanced_Features_Initialization_Type.
uint32_t UART_AdvFeatureInitTypeDef::TxPinLevelInvert
Specifies whether the TX pin active level is inverted. This parameter can be a value of
UART_Tx_Inv.
uint32_t UART_AdvFeatureInitTypeDef::RxPinLevelInvert
Specifies whether the RX pin active level is inverted. This parameter can be a value of
UART_Rx_Inv.
uint32_t UART_AdvFeatureInitTypeDef::DataInvert
Specifies whether data are inverted (positive/direct logic vs negative/inverted logic).
This parameter can be a value of UART_Data_Inv.
uint32_t UART_AdvFeatureInitTypeDef::Swap
Specifies whether TX and RX pins are swapped. This parameter can be a value of
UART_Rx_Tx_Swap.
uint32_t UART_AdvFeatureInitTypeDef::OverrunDisable
Specifies whether the reception overrun detection is disabled. This parameter can be
a value of UART_Overrun_Disable.
uint32_t UART_AdvFeatureInitTypeDef::DMADisableonRxError
Specifies whether the DMA is disabled in case of reception error. This parameter can
be a value of UART_DMA_Disable_on_Rx_Error.
uint32_t UART_AdvFeatureInitTypeDef::AutoBaudRateEnable
Specifies whether auto Baud rate detection is enabled. This parameter can be a value
of UART_AutoBaudRate_Enable
uint32_t UART_AdvFeatureInitTypeDef::AutoBaudRateMode
If auto Baud rate detection is enabled, specifies how the rate detection is carried out.
This parameter can be a value of UART_AutoBaud_Rate_Mode.
uint32_t UART_AdvFeatureInitTypeDef::MSBFirst
Specifies whether MSB is sent first on UART line. This parameter can be a value of
UART_MSB_First.
48.1.3 UART_HandleTypeDef
Data Fields
USART_TypeDef * Instance
UART_InitTypeDef Init
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UART_AdvFeatureInitTypeDef AdvancedInit
uint8_t * pTxBuffPtr
uint16_t TxXferSize
__IO uint16_t TxXferCount
uint8_t * pRxBuffPtr
uint16_t RxXferSize
__IO uint16_t RxXferCount
uint16_t Mask
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
HAL_LockTypeDef Lock
__IO HAL_UART_StateTypeDef gState
__IO HAL_UART_StateTypeDef RxState
__IO uint32_t ErrorCode
Field Documentation
USART_TypeDef* UART_HandleTypeDef::Instance
UART registers base address
UART_InitTypeDef UART_HandleTypeDef::Init
UART communication parameters
UART_AdvFeatureInitTypeDef UART_HandleTypeDef::AdvancedInit
UART Advanced Features initialization parameters
uint8_t* UART_HandleTypeDef::pTxBuffPtr
Pointer to UART Tx transfer Buffer
uint16_t UART_HandleTypeDef::TxXferSize
UART Tx Transfer size
__IO uint16_t UART_HandleTypeDef::TxXferCount
UART Tx Transfer Counter
uint8_t* UART_HandleTypeDef::pRxBuffPtr
Pointer to UART Rx transfer Buffer
uint16_t UART_HandleTypeDef::RxXferSize
UART Rx Transfer size
__IO uint16_t UART_HandleTypeDef::RxXferCount
UART Rx Transfer Counter
uint16_t UART_HandleTypeDef::Mask
UART Rx RDR register mask
DMA_HandleTypeDef* UART_HandleTypeDef::hdmatx
UART Tx DMA Handle parameters
DMA_HandleTypeDef* UART_HandleTypeDef::hdmarx
UART Rx DMA Handle parameters
HAL_LockTypeDef UART_HandleTypeDef::Lock
Locking object
__IO HAL_UART_StateTypeDef UART_HandleTypeDef::gState
UART state information related to global Handle management and also related to Tx
operations. This parameter can be a value of HAL_UART_StateTypeDef
__IO HAL_UART_StateTypeDef UART_HandleTypeDef::RxState
UART state information related to Rx operations. This parameter can be a value of
HAL_UART_StateTypeDef
__IO uint32_t UART_HandleTypeDef::ErrorCode
UART Error code
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48.2 UART Firmware driver API description
48.2.1 How to use this driver
The UART HAL driver can be used as follows:
1. Declare a UART_HandleTypeDef handle structure (eg. UART_HandleTypeDef huart).
2. Initialize the UART low level resources by implementing the HAL_UART_MspInit()
API:
Enable the USARTx interface clock.
UART pins configuration:
Enable the clock for the UART GPIOs.
Configure these UART pins as alternate function pull-up.
NVIC configuration if you need to use interrupt process
(HAL_UART_Transmit_IT() and HAL_UART_Receive_IT() APIs):
Configure the USARTx interrupt priority.
Enable the NVIC USART IRQ handle.
UART interrupts handling: The specific UART interrupts (Transmission complete
interrupt, RXNE interrupt and Error Interrupts) are managed using the macros
__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the
transmit and receive processes.
DMA Configuration if you need to use DMA process
(HAL_UART_Transmit_DMA() and HAL_UART_Receive_DMA() APIs):
Declare a DMA handle structure for the Tx/Rx channel.
Enable the DMAx interface clock.
Configure the declared DMA handle structure with the required Tx/Rx
parameters.
Configure the DMA Tx/Rx channel.
Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx/Rx channel.
3. Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware flow control and
Mode (Receiver/Transmitter) in the huart handle Init structure.
4. If required, program UART advanced features (TX/RX pins swap, auto Baud rate
detection,...) in the huart handle AdvancedInit structure.
5. For the UART asynchronous mode, initialize the UART registers by calling the
HAL_UART_Init() API.
6. For the UART Half duplex mode, initialize the UART registers by calling the
HAL_HalfDuplex_Init() API.
7. For the UART LIN (Local Interconnection Network) mode, initialize the UART registers
by calling the HAL_LIN_Init() API.
8. For the UART Multiprocessor mode, initialize the UART registers by calling the
HAL_MultiProcessor_Init() API.
9. For the UART RS485 Driver Enabled mode, initialize the UART registers by calling the
HAL_RS485Ex_Init() API.
These API's (HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init(),
HAL_MultiProcessor_Init(), also configure the low level Hardware GPIO, CLOCK,
CORTEX...etc) by calling the customized HAL_UART_MspInit() API.
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48.2.2 Initialization and Configuration functions
This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
in asynchronous mode.
For the asynchronous mode the parameters below can be configured:
Baud Rate
Word Length
Stop Bit
Parity: If the parity is enabled, then the MSB bit of the data written in the data
register is transmitted but is changed by the parity bit.
Hardware flow control
Receiver/transmitter modes
Over Sampling Method
One-Bit Sampling Method
For the asynchronous mode, the following advanced features can be configured as
well:
TX and/or RX pin level inversion
data logical level inversion
RX and TX pins swap
RX overrun detection disabling
DMA disabling on RX error
MSB first on communication line
auto Baud rate detection
The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init()and
HAL_MultiProcessor_Init()API follow respectively the UART asynchronous, UART Half
duplex, UART LIN mode and UART multiprocessor mode configuration procedures (details
for the procedures are available in reference manual).
This section contains the following APIs:
HAL_UART_Init()
HAL_HalfDuplex_Init()
HAL_LIN_Init()
HAL_MultiProcessor_Init()
HAL_UART_DeInit()
HAL_UART_MspInit()
HAL_UART_MspDeInit()
48.2.3 IO operation functions
This section contains the following APIs:
HAL_UART_Transmit()
HAL_UART_Receive()
HAL_UART_Transmit_IT()
HAL_UART_Receive_IT()
HAL_UART_Transmit_DMA()
HAL_UART_Receive_DMA()
HAL_UART_DMAPause()
HAL_UART_DMAResume()
HAL_UART_DMAStop()
HAL_UART_Abort()
HAL_UART_AbortTransmit()
HAL_UART_AbortReceive()
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HAL_UART_Abort_IT()
HAL_UART_AbortTransmit_IT()
HAL_UART_AbortReceive_IT()
HAL_UART_IRQHandler()
HAL_UART_TxCpltCallback()
HAL_UART_TxHalfCpltCallback()
HAL_UART_RxCpltCallback()
HAL_UART_RxHalfCpltCallback()
HAL_UART_ErrorCallback()
HAL_UART_AbortCpltCallback()
HAL_UART_AbortTransmitCpltCallback()
HAL_UART_AbortReceiveCpltCallback()
48.2.4 Peripheral Control functions
This subsection provides a set of functions allowing to control the UART.
HAL_MultiProcessor_EnableMuteMode() API enables mute mode
HAL_MultiProcessor_DisableMuteMode() API disables mute mode
HAL_MultiProcessor_EnterMuteMode() API enters mute mode
UART_SetConfig() API configures the UART peripheral
UART_AdvFeatureConfig() API optionally configures the UART advanced features
UART_CheckIdleState() API ensures that TEACK and/or REACK are set after
initialization
HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
HAL_LIN_SendBreak() API transmits the break characters
This section contains the following APIs:
HAL_MultiProcessor_EnableMuteMode()
HAL_MultiProcessor_DisableMuteMode()
HAL_MultiProcessor_EnterMuteMode()
HAL_HalfDuplex_EnableTransmitter()
HAL_HalfDuplex_EnableReceiver()
HAL_LIN_SendBreak()
48.2.5 Peripheral State and Error functions
This subsection provides functions allowing to :
Return the UART handle state.
Return the UART handle error code
This section contains the following APIs:
HAL_UART_GetState()
HAL_UART_GetError()
48.2.6 Detailed description of functions
HAL_UART_Init
Function name
HAL_StatusTypeDef HAL_UART_Init (UART_HandleTypeDef *
huart)
Function description
Initialize the UART mode according to the specified parameters in
the UART_InitTypeDef and initialize the associated handle.
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Parameters
huart: UART handle.
Return values
HAL: status
HAL_HalfDuplex_Init
Function name
HAL_StatusTypeDef HAL_HalfDuplex_Init
(UART_HandleTypeDef * huart)
Function description
Initialize the half-duplex mode according to the specified
parameters in the UART_InitTypeDef and creates the associated
handle.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_LIN_Init
Function name
HAL_StatusTypeDef HAL_LIN_Init (UART_HandleTypeDef *
huart, uint32_t BreakDetectLength)
Function description
Initialize the LIN mode according to the specified parameters in the
UART_InitTypeDef and creates the associated handle .
Parameters
huart: UART handle.
BreakDetectLength: specifies the LIN break detection
length. This parameter can be one of the following values:
UART_LINBREAKDETECTLENGTH_10B 10-bit break
detection
UART_LINBREAKDETECTLENGTH_11B 11-bit break
detection
Return values
HAL: status
HAL_MultiProcessor_Init
Function name
HAL_StatusTypeDef HAL_MultiProcessor_Init
(UART_HandleTypeDef * huart, uint8_t Address, uint32_t
WakeUpMethod)
Function description
Initialize the multiprocessor mode according to the specified
parameters in the UART_InitTypeDef and initialize the associated
handle.
Parameters
huart: UART handle.
Address: UART node address (4-, 6-, 7- or 8-bit long).
WakeUpMethod: specifies the UART wakeup method. This
parameter can be one of the following values:
UART_WAKEUPMETHOD_IDLELINE WakeUp by an
idle line detection
UART_WAKEUPMETHOD_ADDRESSMARK WakeUp
by an address mark
Return values
HAL: status
Notes
If the user resorts to idle line detection wake up, the Address
parameter is useless and ignored by the initialization function.
If the user resorts to address mark wake up, the address
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length detection is configured by default to 4 bits only. For the
UART to be able to manage 6-, 7- or 8-bit long addresses
detection, the API
HAL_MultiProcessorEx_AddressLength_Set() must be called
after HAL_MultiProcessor_Init().
HAL_UART_DeInit
Function name
HAL_StatusTypeDef HAL_UART_DeInit
(UART_HandleTypeDef * huart)
Function description
DeInitialize the UART peripheral.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_UART_MspInit
Function name
void HAL_UART_MspInit (UART_HandleTypeDef * huart)
Function description
Initialize the UART MSP.
Parameters
huart: UART handle.
Return values
None
HAL_UART_MspDeInit
Function name
void HAL_UART_MspDeInit (UART_HandleTypeDef * huart)
Function description
DeInitialize the UART MSP.
Parameters
huart: UART handle.
Return values
None
HAL_UART_Transmit
Function name
HAL_StatusTypeDef HAL_UART_Transmit
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Send an amount of data in blocking mode.
Parameters
huart: UART handle.
pData: Pointer to data buffer.
Size: Amount of data to be sent.
Timeout: Timeout duration.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
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HAL_UART_Receive
Function name
HAL_StatusTypeDef HAL_UART_Receive
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size,
uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
huart: UART handle.
pData: pointer to data buffer.
Size: amount of data to be received.
Timeout: Timeout duration.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer for storing data to be received, should be aligned
on a half word frontier (16 bits) (as received data will be
handled using u16 pointer cast). Depending on compilation
chain, use of specific alignment compilation directives or
pragmas might be required to ensure proper alignment for
pData.
HAL_UART_Transmit_IT
Function name
HAL_StatusTypeDef HAL_UART_Transmit_IT
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size)
Function description
Send an amount of data in interrupt mode.
Parameters
huart: UART handle.
pData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_UART_Receive_IT
Function name
HAL_StatusTypeDef HAL_UART_Receive_IT
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in interrupt mode.
Parameters
huart: UART handle.
pData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
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data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_UART_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_UART_Transmit_DMA
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size)
Function description
Send an amount of data in DMA mode.
Parameters
huart: UART handle.
pData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_UART_Receive_DMA
Function name
HAL_StatusTypeDef HAL_UART_Receive_DMA
(UART_HandleTypeDef * huart, uint8_t * pData, uint16_t Size)
Function description
Receive an amount of data in DMA mode.
Parameters
huart: UART handle.
pData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
Notes
When the UART parity is enabled (PCE = 1) the data
received contain the parity bit.
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pData.
HAL_UART_DMAPause
Function name
HAL_StatusTypeDef HAL_UART_DMAPause
(UART_HandleTypeDef * huart)
Function description
Pause the DMA Transfer.
Parameters
huart: UART handle.
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Return values
HAL: status
HAL_UART_DMAResume
Function name
HAL_StatusTypeDef HAL_UART_DMAResume
(UART_HandleTypeDef * huart)
Function description
Resume the DMA Transfer.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_UART_DMAStop
Function name
HAL_StatusTypeDef HAL_UART_DMAStop
(UART_HandleTypeDef * huart)
Function description
Stop the DMA Transfer.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_UART_Abort
Function name
HAL_StatusTypeDef HAL_UART_Abort
(UART_HandleTypeDef * huart)
Function description
Abort ongoing transfers (blocking mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_UART_AbortTransmit
Function name
HAL_StatusTypeDef HAL_UART_AbortTransmit
(UART_HandleTypeDef * huart)
Function description
Abort ongoing Transmit transfer (blocking mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts
(Tx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
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This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_UART_AbortReceive
Function name
HAL_StatusTypeDef HAL_UART_AbortReceive
(UART_HandleTypeDef * huart)
Function description
Abort ongoing Receive transfer (blocking mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts
(Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_UART_Abort_IT
Function name
HAL_StatusTypeDef HAL_UART_Abort_IT
(UART_HandleTypeDef * huart)
Function description
Abort ongoing transfers (Interrupt mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_UART_AbortTransmit_IT
Function name
HAL_StatusTypeDef HAL_UART_AbortTransmit_IT
(UART_HandleTypeDef * huart)
Function description
Abort ongoing Transmit transfer (Interrupt mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Tx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts
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(Tx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_UART_AbortReceive_IT
Function name
HAL_StatusTypeDef HAL_UART_AbortReceive_IT
(UART_HandleTypeDef * huart)
Function description
Abort ongoing Receive transfer (Interrupt mode).
Parameters
huart: UART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing Rx
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable UART Interrupts
(Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_UART_IRQHandler
Function name
void HAL_UART_IRQHandler (UART_HandleTypeDef * huart)
Function description
Handle UART interrupt request.
Parameters
huart: UART handle.
Return values
None
HAL_UART_TxHalfCpltCallback
Function name
void HAL_UART_TxHalfCpltCallback (UART_HandleTypeDef *
huart)
Function description
Tx Half Transfer completed callback.
Parameters
huart: UART handle.
Return values
None
HAL_UART_TxCpltCallback
Function name
void HAL_UART_TxCpltCallback (UART_HandleTypeDef *
huart)
Function description
Tx Transfer completed callback.
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Parameters
huart: UART handle.
Return values
None
HAL_UART_RxHalfCpltCallback
Function name
void HAL_UART_RxHalfCpltCallback (UART_HandleTypeDef *
huart)
Function description
Rx Half Transfer completed callback.
Parameters
huart: UART handle.
Return values
None
HAL_UART_RxCpltCallback
Function name
void HAL_UART_RxCpltCallback (UART_HandleTypeDef *
huart)
Function description
Rx Transfer completed callback.
Parameters
huart: UART handle.
Return values
None
HAL_UART_ErrorCallback
Function name
void HAL_UART_ErrorCallback (UART_HandleTypeDef *
huart)
Function description
UART error callback.
Parameters
huart: UART handle.
Return values
None
HAL_UART_AbortCpltCallback
Function name
void HAL_UART_AbortCpltCallback (UART_HandleTypeDef *
huart)
Function description
UART Abort Complete callback.
Parameters
huart: UART handle.
Return values
None
HAL_UART_AbortTransmitCpltCallback
Function name
void HAL_UART_AbortTransmitCpltCallback
(UART_HandleTypeDef * huart)
Function description
UART Abort Complete callback.
Parameters
huart: UART handle.
Return values
None
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HAL_UART_AbortReceiveCpltCallback
Function name
void HAL_UART_AbortReceiveCpltCallback
(UART_HandleTypeDef * huart)
Function description
UART Abort Receive Complete callback.
Parameters
huart: UART handle.
Return values
None
HAL_LIN_SendBreak
Function name
HAL_StatusTypeDef HAL_LIN_SendBreak
(UART_HandleTypeDef * huart)
Function description
Transmit break characters.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_MultiProcessor_EnableMuteMode
Function name
HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode
(UART_HandleTypeDef * huart)
Function description
Enable UART in mute mode (does not mean UART enters mute
mode; to enter mute mode,
HAL_MultiProcessor_EnterMuteMode() API must be called).
Parameters
huart: UART handle.
Return values
HAL: status
HAL_MultiProcessor_DisableMuteMode
Function name
HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode
(UART_HandleTypeDef * huart)
Function description
Disable UART mute mode (does not mean the UART actually exits
mute mode as it may not have been in mute mode at this very
moment).
Parameters
huart: UART handle.
Return values
HAL: status
HAL_MultiProcessor_EnterMuteMode
Function name
void HAL_MultiProcessor_EnterMuteMode
(UART_HandleTypeDef * huart)
Function description
Enter UART mute mode (means UART actually enters mute
mode).
Parameters
huart: UART handle.
Return values
None
Notes
To exit from mute mode,
HAL_MultiProcessor_DisableMuteMode() API must be called.
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HAL_HalfDuplex_EnableTransmitter
Function name
HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter
(UART_HandleTypeDef * huart)
Function description
Enable the UART transmitter and disable the UART receiver.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_HalfDuplex_EnableReceiver
Function name
HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver
(UART_HandleTypeDef * huart)
Function description
Enable the UART receiver and disable the UART transmitter.
Parameters
huart: UART handle.
Return values
HAL: status.
HAL_UART_GetState
Function name
HAL_UART_StateTypeDef HAL_UART_GetState
(UART_HandleTypeDef * huart)
Function description
Return the UART handle state.
Parameters
huart: Pointer to a UART_HandleTypeDef structure that
contains the configuration information for the specified UART.
Return values
HAL: state
HAL_UART_GetError
Function name
uint32_t HAL_UART_GetError (UART_HandleTypeDef * huart)
Function description
Return the UART handle error code.
Parameters
huart: Pointer to a UART_HandleTypeDef structure that
contains the configuration information for the specified UART.
Return values
UART: Error Code
UART_SetConfig
Function name
HAL_StatusTypeDef UART_SetConfig (UART_HandleTypeDef
* huart)
Function description
Configure the UART peripheral.
Parameters
huart: UART handle.
Return values
HAL: status
UART_CheckIdleState
Function name
HAL_StatusTypeDef UART_CheckIdleState
(UART_HandleTypeDef * huart)
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Function description
Check the UART Idle State.
Parameters
huart: UART handle.
Return values
HAL: status
UART_WaitOnFlagUntilTimeout
Function name
HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout
(UART_HandleTypeDef * huart, uint32_t Flag, FlagStatus
Status, uint32_t Tickstart, uint32_t Timeout)
Function description
Handle UART Communication Timeout.
Parameters
huart: UART handle.
Flag: Specifies the UART flag to check
Status: Flag status (SET or RESET)
Tickstart: Tick start value
Timeout: Timeout duration
Return values
HAL: status
UART_AdvFeatureConfig
Function name
void UART_AdvFeatureConfig (UART_HandleTypeDef * huart)
Function description
Configure the UART peripheral advanced features.
Parameters
huart: UART handle.
Return values
None
48.3 UART Firmware driver defines
48.3.1 UART
UART Advanced Feature Initialization Type
UART_ADVFEATURE_NO_INIT
No advanced feature initialization
UART_ADVFEATURE_TXINVERT_INIT
TX pin active level inversion
UART_ADVFEATURE_RXINVERT_INIT
RX pin active level inversion
UART_ADVFEATURE_DATAINVERT_INIT
Binary data inversion
UART_ADVFEATURE_SWAP_INIT
TX/RX pins swap
UART_ADVFEATURE_RXOVERRUNDISABLE_INIT
RX overrun disable
UART_ADVFEATURE_DMADISABLEONERROR_INIT
DMA disable on Reception Error
UART_ADVFEATURE_AUTOBAUDRATE_INIT
Auto Baud rate detection
initialization
UART_ADVFEATURE_MSBFIRST_INIT
Most significant bit sent/received
first
UART Advanced Feature Auto BaudRate Enable
UART_ADVFEATURE_AUTOBAUDRATE_DISABLE
RX Auto Baud rate detection
enable
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UART_ADVFEATURE_AUTOBAUDRATE_ENABLE
RX Auto Baud rate detection
disable
UART Advanced Feature AutoBaud Rate Mode
UART_ADVFEATURE_AUTOBAUDRATE_ONSTARTBIT
Auto Baud rate detection
on start bit
UART_ADVFEATURE_AUTOBAUDRATE_ONFALLINGEDGE
Auto Baud rate detection
on falling edge
UART_ADVFEATURE_AUTOBAUDRATE_ON0X7FFRAME
Auto Baud rate detection
on 0x7F frame detection
UART_ADVFEATURE_AUTOBAUDRATE_ON0X55FRAME
Auto Baud rate detection
on 0x55 frame detection
UART Driver Enable Assertion Time LSB Position In CR1 Register
UART_CR1_DEAT_ADDRESS_LSB_POS
UART Driver Enable assertion time LSB
position in CR1 register
UART Driver Enable DeAssertion Time LSB Position In CR1 Register
UART_CR1_DEDT_ADDRESS_LSB_POS
UART Driver Enable de-assertion time LSB
position in CR1 register
UART Address-matching LSB Position In CR2 Register
UART_CR2_ADDRESS_LSB_POS
UART address-matching LSB position in CR2
register
UART Advanced Feature Binary Data Inversion
UART_ADVFEATURE_DATAINV_DISABLE
Binary data inversion disable
UART_ADVFEATURE_DATAINV_ENABLE
Binary data inversion enable
UART Advanced Feature DMA Disable On Rx Error
UART_ADVFEATURE_DMA_ENABLEONRXERROR
DMA enable on Reception Error
UART_ADVFEATURE_DMA_DISABLEONRXERROR
DMA disable on Reception Error
UART DMA Rx
UART_DMA_RX_DISABLE
UART DMA RX disabled
UART_DMA_RX_ENABLE
UART DMA RX enabled
UART DMA Tx
UART_DMA_TX_DISABLE
UART DMA TX disabled
UART_DMA_TX_ENABLE
UART DMA TX enabled
UART DriverEnable Polarity
UART_DE_POLARITY_HIGH
Driver enable signal is active high
UART_DE_POLARITY_LOW
Driver enable signal is active low
UART Exported Macros
__HAL_UART_RESET_HANDLE_STA
TE
Description:
Reset UART handle states.
Parameters:
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__HANDLE__: UART handle.
Return value:
None
__HAL_UART_FLUSH_DRREGISTER
Description:
Flush the UART Data registers.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_CLEAR_FLAG
Description:
Clear the specified UART pending flag.
Parameters:
__HANDLE__: specifies the UART Handle.
__FLAG__: specifies the flag to check. This
parameter can be any combination of the
following values:
UART_CLEAR_PEF Parity Error Clear
Flag
UART_CLEAR_FEF Framing Error
Clear Flag
UART_CLEAR_NEF Noise detected
Clear Flag
UART_CLEAR_OREF Overrun Error
Clear Flag
UART_CLEAR_IDLEF IDLE line
detected Clear Flag
UART_CLEAR_TCF Transmission
Complete Clear Flag
UART_CLEAR_LBDF LIN Break
Detection Clear Flag
UART_CLEAR_CTSF CTS Interrupt
Clear Flag
UART_CLEAR_RTOF Receiver Time
Out Clear Flag
UART_CLEAR_EOBF End Of Block
Clear Flag
UART_CLEAR_CMF Character Match
Clear Flag
UART_CLEAR_WUF Wake Up from
stop mode Clear Flag
Return value:
None
__HAL_UART_CLEAR_PEFLAG
Description:
Clear the UART PE pending flag.
Parameters:
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__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_CLEAR_FEFLAG
Description:
Clear the UART FE pending flag.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_CLEAR_NEFLAG
Description:
Clear the UART NE pending flag.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_CLEAR_OREFLAG
Description:
Clear the UART ORE pending flag.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_CLEAR_IDLEFLAG
Description:
Clear the UART IDLE pending flag.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_GET_FLAG
Description:
Check whether the specified UART flag is
set or not.
Parameters:
__HANDLE__: specifies the UART Handle.
__FLAG__: specifies the flag to check. This
parameter can be one of the following
values:
UART_FLAG_REACK Receive enable
acknowledge flag
UART_FLAG_TEACK Transmit enable
acknowledge flag
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UART_FLAG_WUF Wake up from stop
mode flag
UART_FLAG_RWU Receiver wake up
flag (if the UART in mute mode)
UART_FLAG_SBKF Send Break flag
UART_FLAG_CMF Character match
flag
UART_FLAG_BUSY Busy flag
UART_FLAG_ABRF Auto Baud rate
detection flag
UART_FLAG_ABRE Auto Baud rate
detection error flag
UART_FLAG_EOBF End of block flag
UART_FLAG_RTOF Receiver timeout
flag
UART_FLAG_CTS CTS Change flag
UART_FLAG_LBDF LIN Break
detection flag
UART_FLAG_TXE Transmit data
register empty flag
UART_FLAG_TC Transmission
Complete flag
UART_FLAG_RXNE Receive data
register not empty flag
UART_FLAG_IDLE Idle Line detection
flag
UART_FLAG_ORE Overrun Error flag
UART_FLAG_NE Noise Error flag
UART_FLAG_FE Framing Error flag
UART_FLAG_PE Parity Error flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_UART_ENABLE_IT
Description:
Enable the specified UART interrupt.
Parameters:
__HANDLE__: specifies the UART Handle.
__INTERRUPT__: specifies the UART
interrupt source to enable. This parameter
can be one of the following values:
UART_IT_WUF Wakeup from stop
mode interrupt
UART_IT_CM Character match
interrupt
UART_IT_CTS CTS change interrupt
UART_IT_LBD LIN Break detection
interrupt
UART_IT_TXE Transmit Data Register
empty interrupt
UART_IT_TC Transmission complete
interrupt
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UART_IT_RXNE Receive Data register
not empty interrupt
UART_IT_IDLE Idle line detection
interrupt
UART_IT_PE Parity Error interrupt
UART_IT_ERR Error interrupt (Frame
error, noise error, overrun error)
Return value:
None
__HAL_UART_DISABLE_IT
Description:
Disable the specified UART interrupt.
Parameters:
__HANDLE__: specifies the UART Handle.
__INTERRUPT__: specifies the UART
interrupt source to disable. This parameter
can be one of the following values:
UART_IT_WUF Wakeup from stop
mode interrupt
UART_IT_CM Character match
interrupt
UART_IT_CTS CTS change interrupt
UART_IT_LBD LIN Break detection
interrupt
UART_IT_TXE Transmit Data Register
empty interrupt
UART_IT_TC Transmission complete
interrupt
UART_IT_RXNE Receive Data register
not empty interrupt
UART_IT_IDLE Idle line detection
interrupt
UART_IT_PE Parity Error interrupt
UART_IT_ERR Error interrupt (Frame
error, noise error, overrun error)
Return value:
None
__HAL_UART_GET_IT
Description:
Check whether the specified UART interrupt
has occurred or not.
Parameters:
__HANDLE__: specifies the UART Handle.
__IT__: specifies the UART interrupt to
check. This parameter can be one of the
following values:
UART_IT_WUF Wakeup from stop
mode interrupt
UART_IT_CM Character match
interrupt
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UART_IT_CTS CTS change interrupt
UART_IT_LBD LIN Break detection
interrupt
UART_IT_TXE Transmit Data Register
empty interrupt
UART_IT_TC Transmission complete
interrupt
UART_IT_RXNE Receive Data register
not empty interrupt
UART_IT_IDLE Idle line detection
interrupt
UART_IT_ORE Overrun Error interrupt
UART_IT_NE Noise Error interrupt
UART_IT_FE Framing Error interrupt
UART_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or
FALSE).
__HAL_UART_GET_IT_SOURCE
Description:
Check whether the specified UART interrupt
source is enabled or not.
Parameters:
__HANDLE__: specifies the UART Handle.
__IT__: specifies the UART interrupt source
to check. This parameter can be one of the
following values:
UART_IT_WUF Wakeup from stop
mode interrupt
UART_IT_CM Character match
interrupt
UART_IT_CTS CTS change interrupt
UART_IT_LBD LIN Break detection
interrupt
UART_IT_TXE Transmit Data Register
empty interrupt
UART_IT_TC Transmission complete
interrupt
UART_IT_RXNE Receive Data register
not empty interrupt
UART_IT_IDLE Idle line detection
interrupt
UART_IT_ERR Error interrupt (Frame
error, noise error, overrun error)
UART_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or
FALSE).
__HAL_UART_CLEAR_IT
Description:
Clear the specified UART ISR flag, in
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setting the proper ICR register flag.
Parameters:
__HANDLE__: specifies the UART Handle.
__IT_CLEAR__: specifies the interrupt clear
register flag that needs to be set to clear the
corresponding interrupt This parameter can
be one of the following values:
UART_CLEAR_PEF Parity Error Clear
Flag
UART_CLEAR_FEF Framing Error
Clear Flag
UART_CLEAR_NEF Noise detected
Clear Flag
UART_CLEAR_OREF Overrun Error
Clear Flag
UART_CLEAR_IDLEF IDLE line
detected Clear Flag
UART_CLEAR_TCF Transmission
Complete Clear Flag
UART_CLEAR_LBDF LIN Break
Detection Clear Flag
UART_CLEAR_CTSF CTS Interrupt
Clear Flag
UART_CLEAR_RTOF Receiver Time
Out Clear Flag
UART_CLEAR_EOBF End Of Block
Clear Flag
UART_CLEAR_CMF Character Match
Clear Flag
UART_CLEAR_WUF Wake Up from
stop mode Clear Flag
Return value:
None
__HAL_UART_SEND_REQ
Description:
Set a specific UART request flag.
Parameters:
__HANDLE__: specifies the UART Handle.
__REQ__: specifies the request flag to set
This parameter can be one of the following
values:
UART_AUTOBAUD_REQUEST Auto-
Baud Rate Request
UART_SENDBREAK_REQUEST
Send Break Request
UART_MUTE_MODE_REQUEST
Mute Mode Request
UART_RXDATA_FLUSH_REQUEST
Receive Data flush Request
UART_TXDATA_FLUSH_REQUEST
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Transmit data flush Request
Return value:
None
__HAL_UART_ONE_BIT_SAMPLE_
ENABLE
Description:
Enable the UART one bit sample method.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_ONE_BIT_SAMPLE_
DISABLE
Description:
Disable the UART one bit sample method.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_ENABLE
Description:
Enable UART.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_DISABLE
Description:
Disable UART.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_HWCONTROL_CTS_
ENABLE
Description:
Enable CTS flow control.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
Notes:
This macro allows to enable CTS hardware
flow control for a given UART instance,
without need to call HAL_UART_Init()
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function. As involving direct access to
UART registers, usage of this macro should
be fully endorsed by user. As macro is
expected to be used for modifying CTS Hw
flow control feature activation, without need
for USART instance Deinit/Init, following
conditions for macro call should be fulfilled :
UART instance should have already been
initialised (through call of HAL_UART_Init()
)macro could only be called when
corresponding UART instance is disabled
(i.e.
__HAL_UART_DISABLE(__HANDLE__))
and should be followed by an Enable macro
(i.e.
__HAL_UART_ENABLE(__HANDLE__)).
__HAL_UART_HWCONTROL_CTS_
DISABLE
Description:
Disable CTS flow control.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
Notes:
This macro allows to disable CTS hardware
flow control for a given UART instance,
without need to call HAL_UART_Init()
function. As involving direct access to
UART registers, usage of this macro should
be fully endorsed by user. As macro is
expected to be used for modifying CTS Hw
flow control feature activation, without need
for USART instance Deinit/Init, following
conditions for macro call should be fulfilled :
UART instance should have already been
initialised (through call of HAL_UART_Init()
)macro could only be called when
corresponding UART instance is disabled
(i.e.
__HAL_UART_DISABLE(__HANDLE__))
and should be followed by an Enable macro
(i.e.
__HAL_UART_ENABLE(__HANDLE__)).
__HAL_UART_HWCONTROL_RTS_
ENABLE
Description:
Enable RTS flow control.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
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None
Notes:
This macro allows to enable RTS hardware
flow control for a given UART instance,
without need to call HAL_UART_Init()
function. As involving direct access to
UART registers, usage of this macro should
be fully endorsed by user. As macro is
expected to be used for modifying RTS Hw
flow control feature activation, without need
for USART instance Deinit/Init, following
conditions for macro call should be fulfilled :
UART instance should have already been
initialised (through call of HAL_UART_Init()
)macro could only be called when
corresponding UART instance is disabled
(i.e.
__HAL_UART_DISABLE(__HANDLE__))
and should be followed by an Enable macro
(i.e.
__HAL_UART_ENABLE(__HANDLE__)).
__HAL_UART_HWCONTROL_RTS_
DISABLE
Description:
Disable RTS flow control.
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
Notes:
This macro allows to disable RTS hardware
flow control for a given UART instance,
without need to call HAL_UART_Init()
function. As involving direct access to
UART registers, usage of this macro should
be fully endorsed by user. As macro is
expected to be used for modifying RTS Hw
flow control feature activation, without need
for USART instance Deinit/Init, following
conditions for macro call should be fulfilled :
UART instance should have already been
initialised (through call of HAL_UART_Init()
)macro could only be called when
corresponding UART instance is disabled
(i.e.
__HAL_UART_DISABLE(__HANDLE__))
and should be followed by an Enable macro
(i.e.
__HAL_UART_ENABLE(__HANDLE__)).
__HAL_UART_ONE_BIT_ENABLE
Description:
macros to enable the UART's one bit
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sampling method
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
__HAL_UART_ONE_BIT_DISABLE
Description:
macros to disable the UART's one bit
sampling method
Parameters:
__HANDLE__: specifies the UART Handle.
Return value:
None
UART Status Flags
UART_FLAG_REACK
UART receive enable acknowledge flag
UART_FLAG_TEACK
UART transmit enable acknowledge flag
UART_FLAG_WUF
UART wake-up from stop mode flag
UART_FLAG_RWU
UART receiver wake-up from mute mode flag
UART_FLAG_SBKF
UART send break flag
UART_FLAG_CMF
UART character match flag
UART_FLAG_BUSY
UART busy flag
UART_FLAG_ABRF
UART auto Baud rate flag
UART_FLAG_ABRE
UART auto Baud rate error
UART_FLAG_EOBF
UART end of block flag
UART_FLAG_RTOF
UART receiver timeout flag
UART_FLAG_CTS
UART clear to send flag
UART_FLAG_CTSIF
UART clear to send interrupt flag
UART_FLAG_LBDF
UART LIN break detection flag
UART_FLAG_TXE
UART transmit data register empty
UART_FLAG_TC
UART transmission complete
UART_FLAG_RXNE
UART read data register not empty
UART_FLAG_IDLE
UART idle flag
UART_FLAG_ORE
UART overrun error
UART_FLAG_NE
UART noise error
UART_FLAG_FE
UART frame error
UART_FLAG_PE
UART parity error
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UART Half Duplex Selection
UART_HALF_DUPLEX_DISABLE
UART half-duplex disabled
UART_HALF_DUPLEX_ENABLE
UART half-duplex enabled
UART Hardware Flow Control
UART_HWCONTROL_NONE
No hardware control
UART_HWCONTROL_RTS
Request To Send
UART_HWCONTROL_CTS
Clear To Send
UART_HWCONTROL_RTS_CTS
Request and Clear To Send
UART Interruptions Flag Mask
UART_IT_MASK
UART interruptions flags mask
UART Interrupts Definition
UART_IT_PE
UART parity error interruption
UART_IT_TXE
UART transmit data register empty interruption
UART_IT_TC
UART transmission complete interruption
UART_IT_RXNE
UART read data register not empty interruption
UART_IT_IDLE
UART idle interruption
UART_IT_LBD
UART LIN break detection interruption
UART_IT_CTS
UART CTS interruption
UART_IT_CM
UART character match interruption
UART_IT_WUF
UART wake-up from stop mode interruption
UART_IT_ERR
UART_IT_ORE
UART_IT_NE
UART noise error interruption
UART_IT_FE
UART frame error interruption
UART Interruption Clear Flags
UART_CLEAR_PEF
Parity Error Clear Flag
UART_CLEAR_FEF
Framing Error Clear Flag
UART_CLEAR_NEF
Noise detected Clear Flag
UART_CLEAR_OREF
Overrun Error Clear Flag
UART_CLEAR_IDLEF
IDLE line detected Clear Flag
UART_CLEAR_TCF
Transmission Complete Clear Flag
UART_CLEAR_LBDF
LIN Break Detection Clear Flag
UART_CLEAR_CTSF
CTS Interrupt Clear Flag
UART_CLEAR_RTOF
Receiver Time Out Clear Flag
UART_CLEAR_EOBF
End Of Block Clear Flag
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UART_CLEAR_CMF
Character Match Clear Flag
UART_CLEAR_WUF
Wake Up from stop mode Clear Flag
UART Local Interconnection Network mode
UART_LIN_DISABLE
Local Interconnect Network disable
UART_LIN_ENABLE
Local Interconnect Network enable
UART LIN Break Detection
UART_LINBREAKDETECTLENGTH_10B
LIN 10-bit break detection length
UART_LINBREAKDETECTLENGTH_11B
LIN 11-bit break detection length
UART Transfer Mode
UART_MODE_RX
RX mode
UART_MODE_TX
TX mode
UART_MODE_TX_RX
RX and TX mode
UART Advanced Feature MSB First
UART_ADVFEATURE_MSBFIRST_DISABLE
Most significant bit sent/received first
disable
UART_ADVFEATURE_MSBFIRST_ENABLE
Most significant bit sent/received first
enable
UART Advanced Feature Mute Mode Enable
UART_ADVFEATURE_MUTEMODE_DISABLE
UART mute mode disable
UART_ADVFEATURE_MUTEMODE_ENABLE
UART mute mode enable
UART One Bit Sampling Method
UART_ONE_BIT_SAMPLE_DISABLE
One-bit sampling disable
UART_ONE_BIT_SAMPLE_ENABLE
One-bit sampling enable
UART Advanced Feature Overrun Disable
UART_ADVFEATURE_OVERRUN_ENABLE
RX overrun enable
UART_ADVFEATURE_OVERRUN_DISABLE
RX overrun disable
UART Over Sampling
UART_OVERSAMPLING_16
Oversampling by 16
UART_OVERSAMPLING_8
Oversampling by 8
UART Parity
UART_PARITY_NONE
No parity
UART_PARITY_EVEN
Even parity
UART_PARITY_ODD
Odd parity
UART Receiver TimeOut
UART_RECEIVER_TIMEOUT_DISABLE
UART receiver timeout disable
UART_RECEIVER_TIMEOUT_ENABLE
UART receiver timeout enable
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UART Request Parameters
UART_AUTOBAUD_REQUEST
Auto-Baud Rate Request
UART_SENDBREAK_REQUEST
Send Break Request
UART_MUTE_MODE_REQUEST
Mute Mode Request
UART_RXDATA_FLUSH_REQUEST
Receive Data flush Request
UART_TXDATA_FLUSH_REQUEST
Transmit data flush Request
UART Advanced Feature RX Pin Active Level Inversion
UART_ADVFEATURE_RXINV_DISABLE
RX pin active level inversion disable
UART_ADVFEATURE_RXINV_ENABLE
RX pin active level inversion enable
UART Advanced Feature RX TX Pins Swap
UART_ADVFEATURE_SWAP_DISABLE
TX/RX pins swap disable
UART_ADVFEATURE_SWAP_ENABLE
TX/RX pins swap enable
UART State
UART_STATE_DISABLE
UART disabled
UART_STATE_ENABLE
UART enabled
UART Number of Stop Bits
UART_STOPBITS_1
UART frame with 1 stop bit
UART_STOPBITS_1_5
UART frame with 1.5 stop bits
UART_STOPBITS_2
UART frame with 2 stop bits
UART Advanced Feature Stop Mode Enable
UART_ADVFEATURE_STOPMODE_DISABLE
UART stop mode disable
UART_ADVFEATURE_STOPMODE_ENABLE
UART stop mode enable
UART polling-based communications time-out value
HAL_UART_TIMEOUT_VALUE
UART polling-based communications time-out value
UART Advanced Feature TX Pin Active Level Inversion
UART_ADVFEATURE_TXINV_DISABLE
TX pin active level inversion disable
UART_ADVFEATURE_TXINV_ENABLE
TX pin active level inversion enable
UART WakeUp From Stop Selection
UART_WAKEUP_ON_ADDRESS
UART wake-up on address
UART_WAKEUP_ON_STARTBIT
UART wake-up on start bit
UART_WAKEUP_ON_READDATA_NONEMPTY
UART wake-up on receive data
register not empty
UART WakeUp Methods
UART_WAKEUPMETHOD_IDLELINE
UART wake-up on idle line
UART_WAKEUPMETHOD_ADDRESSMARK
UART wake-up on address mark
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49 HAL UART Extension Driver
49.1 UARTEx Firmware driver registers structures
49.1.1 UART_WakeUpTypeDef
Data Fields
uint32_t WakeUpEvent
uint16_t AddressLength
uint8_t Address
Field Documentation
uint32_t UART_WakeUpTypeDef::WakeUpEvent
Specifies which event will activat the Wakeup from Stop mode flag (WUF). This
parameter can be a value of UART_WakeUp_from_Stop_Selection. If set to
UART_WAKEUP_ON_ADDRESS, the two other fields below must be filled up.
uint16_t UART_WakeUpTypeDef::AddressLength
Specifies whether the address is 4 or 7-bit long. This parameter can be a value of
UARTEx_WakeUp_Address_Length.
uint8_t UART_WakeUpTypeDef::Address
UART/USART node address (7-bit long max).
49.2 UARTEx Firmware driver API description
49.2.1 UART peripheral extended features
49.2.2 Initialization and Configuration functions
This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
in asynchronous mode.
For the asynchronous mode the parameters below can be configured:
Baud Rate
Word Length
Stop Bit
Parity: If the parity is enabled, then the MSB bit of the data written in the data
register is transmitted but is changed by the parity bit.
Hardware flow control
Receiver/transmitter modes
Over Sampling Method
One-Bit Sampling Method
For the asynchronous mode, the following advanced features can be configured as
well:
TX and/or RX pin level inversion
data logical level inversion
RX and TX pins swap
RX overrun detection disabling
DMA disabling on RX error
MSB first on communication line
auto Baud rate detection
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The HAL_RS485Ex_Init() API follows the UART RS485 mode configuration procedures
(details for the procedures are available in reference manual).
This section contains the following APIs:
HAL_RS485Ex_Init()
49.2.3 Peripheral Control functions
This section provides the following functions:
HAL_UARTEx_EnableClockStopMode() API enables the UART clock (HSI or LSE
only) during stop mode
HAL_UARTEx_DisableClockStopMode() API disables the above functionality
HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node
address detection length to more than 4 bits for multiprocessor address mark wake
up.
HAL_UARTEx_StopModeWakeUpSourceConfig() API defines the wake-up from stop
mode trigger: address match, Start Bit detection or RXNE bit status.
HAL_UARTEx_EnableStopMode() API enables the UART to wake up the MCU from
stop mode
HAL_UARTEx_DisableStopMode() API disables the above functionality
HAL_UARTEx_EnableClockStopMode() API enables the UART HSI clock during stop
mode
HAL_UARTEx_DisableClockStopMode() API disables the above functionality
HAL_UARTEx_WakeupCallback() called upon UART wakeup interrupt
This section contains the following APIs:
HAL_MultiProcessorEx_AddressLength_Set()
HAL_UARTEx_StopModeWakeUpSourceConfig()
HAL_UARTEx_EnableStopMode()
HAL_UARTEx_DisableStopMode()
HAL_UARTEx_EnableClockStopMode()
HAL_UARTEx_DisableClockStopMode()
HAL_UARTEx_WakeupCallback()
49.2.4 Detailed description of functions
HAL_RS485Ex_Init
Function name
HAL_StatusTypeDef HAL_RS485Ex_Init
(UART_HandleTypeDef * huart, uint32_t Polarity, uint32_t
AssertionTime, uint32_t DeassertionTime)
Function description
Initialize the RS485 Driver enable feature according to the
specified parameters in the UART_InitTypeDef and creates the
associated handle.
Parameters
huart: UART handle.
Polarity: select the driver enable polarity. This parameter
can be one of the following values:
UART_DE_POLARITY_HIGH DE signal is active high
UART_DE_POLARITY_LOW DE signal is active low
AssertionTime: Driver Enable assertion time: 5-bit value
defining the time between the activation of the DE (Driver
Enable) signal and the beginning of the start bit. It is
expressed in sample time units (1/8 or 1/16 bit time,
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depending on the oversampling rate)
DeassertionTime: Driver Enable deassertion time: 5-bit
value defining the time between the end of the last stop bit, in
a transmitted message, and the de-activation of the DE
(Driver Enable) signal. It is expressed in sample time units
(1/8 or 1/16 bit time, depending on the oversampling rate).
Return values
HAL: status
HAL_UARTEx_StopModeWakeUpSourceConfig
Function name
HAL_StatusTypeDef
HAL_UARTEx_StopModeWakeUpSourceConfig
(UART_HandleTypeDef * huart, UART_WakeUpTypeDef
WakeUpSelection)
Function description
Set Wakeup from Stop mode interrupt flag selection.
Parameters
huart: UART handle.
WakeUpSelection: address match, Start Bit detection or
RXNE bit status. This parameter can be one of the following
values:
UART_WAKEUP_ON_ADDRESS
UART_WAKEUP_ON_STARTBIT
UART_WAKEUP_ON_READDATA_NONEMPTY
Return values
HAL: status
HAL_UARTEx_EnableStopMode
Function name
HAL_StatusTypeDef HAL_UARTEx_EnableStopMode
(UART_HandleTypeDef * huart)
Function description
Enable UART Stop Mode.
Parameters
huart: UART handle.
Return values
HAL: status
Notes
The UART is able to wake up the MCU from Stop 1 mode as
long as UART clock is HSI or LSE.
HAL_UARTEx_DisableStopMode
Function name
HAL_StatusTypeDef HAL_UARTEx_DisableStopMode
(UART_HandleTypeDef * huart)
Function description
Disable UART Stop Mode.
Parameters
huart: UART handle.
Return values
HAL: status
HAL_MultiProcessorEx_AddressLength_Set
Function name
HAL_StatusTypeDef
HAL_MultiProcessorEx_AddressLength_Set
(UART_HandleTypeDef * huart, uint32_t AddressLength)
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Function description
By default in multiprocessor mode, when the wake up method is
set to address mark, the UART handles only 4-bit long addresses
detection; this API allows to enable longer addresses detection (6-,
7- or 8-bit long).
Parameters
huart: UART handle.
AddressLength: this parameter can be one of the following
values:
UART_ADDRESS_DETECT_4B 4-bit long address
UART_ADDRESS_DETECT_7B 6-, 7- or 8-bit long
address
Return values
HAL: status
Notes
Addresses detection lengths are: 6-bit address detection in 7-
bit data mode, 7-bit address detection in 8-bit data mode, 8-
bit address detection in 9-bit data mode.
HAL_UARTEx_EnableClockStopMode
Function name
HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode
(UART_HandleTypeDef * huart)
Function description
Enable UART Clock in Stop Mode The UART keeps the Clock ON
during Stop mode.
Parameters
huart: uart handle
Return values
HAL: status
HAL_UARTEx_DisableClockStopMode
Function name
HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode
(UART_HandleTypeDef * huart)
Function description
Disable UART Clock in Stop Mode.
Parameters
huart: uart handle
Return values
HAL: status
HAL_UARTEx_WakeupCallback
Function name
void HAL_UARTEx_WakeupCallback (UART_HandleTypeDef *
huart)
Function description
UART wakeup from Stop mode callback.
Parameters
huart: UART handle.
Return values
None
49.3 UARTEx Firmware driver defines
49.3.1 UARTEx
UART Extended WakeUp Address Length
UART_ADDRESS_DETECT_4B
4-bit long wake-up address
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UART_ADDRESS_DETECT_7B
7-bit long wake-up address
UART Word Length
UART_WORDLENGTH_7B
7-bit long UART frame
UART_WORDLENGTH_8B
8-bit long UART frame
UART_WORDLENGTH_9B
9-bit long UART frame
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50 HAL USART Generic Driver
50.1 USART Firmware driver registers structures
50.1.1 USART_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t WordLength
uint32_t StopBits
uint32_t Parity
uint32_t Mode
uint32_t CLKPolarity
uint32_t CLKPhase
uint32_t CLKLastBit
Field Documentation
uint32_t USART_InitTypeDef::BaudRate
This member configures the Usart communication baud rate. The baud rate is
computed using the following formula: Baud Rate Register = ((PCLKx) / ((huart-
>Init.BaudRate))).
uint32_t USART_InitTypeDef::WordLength
Specifies the number of data bits transmitted or received in a frame. This parameter
can be a value of USARTEx_Word_Length.
uint32_t USART_InitTypeDef::StopBits
Specifies the number of stop bits transmitted. This parameter can be a value of
USART_Stop_Bits.
uint32_t USART_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of USART_Parity
Note:When parity is enabled, the computed parity is inserted at the MSB position of
the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the
word length is set to 8 data bits).
uint32_t USART_InitTypeDef::Mode
Specifies whether the Receive or Transmit mode is enabled or disabled. This
parameter can be a value of USART_Mode.
uint32_t USART_InitTypeDef::CLKPolarity
Specifies the steady state of the serial clock. This parameter can be a value of
USART_Clock_Polarity.
uint32_t USART_InitTypeDef::CLKPhase
Specifies the clock transition on which the bit capture is made. This parameter can be
a value of USART_Clock_Phase.
uint32_t USART_InitTypeDef::CLKLastBit
Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB)
has to be output on the SCLK pin in synchronous mode. This parameter can be a
value of USART_Last_Bit.
50.1.2 USART_HandleTypeDef
Data Fields
USART_TypeDef * Instance
USART_InitTypeDef Init
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uint8_t * pTxBuffPtr
uint16_t TxXferSize
__IO uint16_t TxXferCount
uint8_t * pRxBuffPtr
uint16_t RxXferSize
__IO uint16_t RxXferCount
uint16_t Mask
DMA_HandleTypeDef * hdmatx
DMA_HandleTypeDef * hdmarx
HAL_LockTypeDef Lock
__IO HAL_USART_StateTypeDef State
__IO uint32_t ErrorCode
Field Documentation
USART_TypeDef* USART_HandleTypeDef::Instance
USART registers base address
USART_InitTypeDef USART_HandleTypeDef::Init
USART communication parameters
uint8_t* USART_HandleTypeDef::pTxBuffPtr
Pointer to USART Tx transfer Buffer
uint16_t USART_HandleTypeDef::TxXferSize
USART Tx Transfer size
__IO uint16_t USART_HandleTypeDef::TxXferCount
USART Tx Transfer Counter
uint8_t* USART_HandleTypeDef::pRxBuffPtr
Pointer to USART Rx transfer Buffer
uint16_t USART_HandleTypeDef::RxXferSize
USART Rx Transfer size
__IO uint16_t USART_HandleTypeDef::RxXferCount
USART Rx Transfer Counter
uint16_t USART_HandleTypeDef::Mask
USART Rx RDR register mask
DMA_HandleTypeDef* USART_HandleTypeDef::hdmatx
USART Tx DMA Handle parameters
DMA_HandleTypeDef* USART_HandleTypeDef::hdmarx
USART Rx DMA Handle parameters
HAL_LockTypeDef USART_HandleTypeDef::Lock
Locking object
__IO HAL_USART_StateTypeDef USART_HandleTypeDef::State
USART communication state
__IO uint32_t USART_HandleTypeDef::ErrorCode
USART Error code
50.2 USART Firmware driver API description
50.2.1 How to use this driver
The USART HAL driver can be used as follows:
1. Declare a USART_HandleTypeDef handle structure (eg. USART_HandleTypeDef
husart).
2. Initialize the USART low level resources by implementing the HAL_USART_MspInit()
API:
Enable the USARTx interface clock.
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USART pins configuration:
Enable the clock for the USART GPIOs.
Configure these USART pins as alternate function pull-up.
NVIC configuration if you need to use interrupt process
(HAL_USART_Transmit_IT(), HAL_USART_Receive_IT() and
HAL_USART_TransmitReceive_IT() APIs):
Configure the USARTx interrupt priority.
Enable the NVIC USART IRQ handle.
USART interrupts handling: The specific USART interrupts (Transmission
complete interrupt, RXNE interrupt and Error Interrupts) will be managed using
the macros __HAL_USART_ENABLE_IT() and __HAL_USART_DISABLE_IT()
inside the transmit and receive process.
DMA Configuration if you need to use DMA process
(HAL_USART_Transmit_DMA() HAL_USART_Receive_DMA() and
HAL_USART_TransmitReceive_DMA() APIs):
Declare a DMA handle structure for the Tx/Rx channel.
Enable the DMAx interface clock.
Configure the declared DMA handle structure with the required Tx/Rx
parameters.
Configure the DMA Tx/Rx channel.
Associate the initialized DMA handle to the USART DMA Tx/Rx handle.
Configure the priority and enable the NVIC for the transfer complete interrupt
on the DMA Tx/Rx channel.
3. Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware flow control and
Mode (Receiver/Transmitter) in the husart handle Init structure.
4. Initialize the USART registers by calling the HAL_USART_Init() API:
This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
by calling the customized HAL_USART_MspInit(&husart) API.
50.2.2 Initialization and Configuration functions
This subsection provides a set of functions allowing to initialize the USART in
asynchronous and in synchronous modes.
For the asynchronous mode only these parameters can be configured:
Baud Rate
Word Length
Stop Bit
Parity: If the parity is enabled, then the MSB bit of the data written in the data
register is transmitted but is changed by the parity bit.
USART polarity
USART phase
USART LastBit
Receiver/transmitter modes
The HAL_USART_Init() function follows the USART synchronous configuration procedure
(details for the procedure are available in reference manual).
This section contains the following APIs:
HAL_USART_Init()
HAL_USART_DeInit()
HAL_USART_MspInit()
HAL_USART_MspDeInit()
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50.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the USART synchronous
data transfers.
The USART supports master mode only: it cannot receive or send data related to an input
clock (SCLK is always an output).
1. There are two modes of transfer:
Blocking mode: The communication is performed in polling mode. The HAL
status of all data processing is returned by the same function after finishing
transfer.
No-Blocking mode: The communication is performed using Interrupts or DMA,
These API's return the HAL status. The end of the data processing will be
indicated through the dedicated USART IRQ when using Interrupt mode or the
DMA IRQ when using DMA mode. The HAL_USART_TxCpltCallback(),
HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback() user
callbacks will be executed respectively at the end of the transmit or Receive
process The HAL_USART_ErrorCallback()user callback will be executed when a
communication error is detected
2. Blocking mode API's are :
HAL_USART_Transmit()in simplex mode
HAL_USART_Receive() in full duplex receive only
HAL_USART_TransmitReceive() in full duplex mode
3. Non-Blocking mode API's with Interrupt are :
HAL_USART_Transmit_IT()in simplex mode
HAL_USART_Receive_IT() in full duplex receive only
HAL_USART_TransmitReceive_IT()in full duplex mode
HAL_USART_IRQHandler()
4. No-Blocking mode API's with DMA are :
HAL_USART_Transmit_DMA()in simplex mode
HAL_USART_Receive_DMA() in full duplex receive only
HAL_USART_TransmitReceive_DMA() in full duplex mode
HAL_USART_DMAPause()
HAL_USART_DMAResume()
HAL_USART_DMAStop()
5. A set of Transfer Complete Callbacks are provided in Non_Blocking mode:
HAL_USART_TxCpltCallback()
HAL_USART_RxCpltCallback()
HAL_USART_TxHalfCpltCallback()
HAL_USART_RxHalfCpltCallback()
HAL_USART_ErrorCallback()
HAL_USART_TxRxCpltCallback()
6. Non-Blocking mode transfers could be aborted using Abort API's : (+)
HAL_USART_Abort() (+) HAL_USART_Abort_IT()
7. For Abort services based on interrupts (HAL_USART_Abort_IT), a Abort Complete
Callbacks is provided: (+) HAL_USART_AbortCpltCallback()
8. In Non-Blocking mode transfers, possible errors are split into 2 categories. Errors are
handled as follows : (+) Error is considered as Recoverable and non blocking :
Transfer could go till end, but error severity is to be evaluated by user : this concerns
Frame Error, Parity Error or Noise Error in Interrupt mode reception . Received
character is then retrieved and stored in Rx buffer, Error code is set to allow user to
identify error type, and HAL_USART_ErrorCallback() user callback is executed.
Transfer is kept ongoing on USART side. If user wants to abort it, Abort services
should be called by user. (+) Error is considered as Blocking : Transfer could not be
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completed properly and is aborted. This concerns Overrun Error In Interrupt mode
reception and all errors in DMA mode. Error code is set to allow user to identify error
type, and HAL_USART_ErrorCallback() user callback is executed.
The USART supports master mode only: it cannot receive or send data related to an input
clock (SCLK is always an output). (#) There are two modes of transfer: (++) Blocking mode:
The communication is performed in polling mode. The HAL status of all data processing is
returned by the same function after finishing transfer. (++) No-Blocking mode: The
communication is performed using Interrupts or DMA, These API's return the HAL status.
The end of the data processing will be indicated through the dedicated USART IRQ when
using Interrupt mode or the DMA IRQ when using DMA mode. The
HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and
HAL_USART_TxRxCpltCallback() user callbacks will be executed respectively at the end
of the transmit or Receive process The HAL_USART_ErrorCallback()user callback will be
executed when a communication error is detected (#) Blocking mode API's are : (++)
HAL_USART_Transmit()in simplex mode (++) HAL_USART_Receive() in full duplex
receive only (++) HAL_USART_TransmitReceive() in full duplex mode (#) Non-Blocking
mode API's with Interrupt are : (++) HAL_USART_Transmit_IT()in simplex mode (++)
HAL_USART_Receive_IT() in full duplex receive only (++)
HAL_USART_TransmitReceive_IT()in full duplex mode (++) HAL_USART_IRQHandler()
(#) No-Blocking mode API's with DMA are : (++) HAL_USART_Transmit_DMA()in simplex
mode (++) HAL_USART_Receive_DMA() in full duplex receive only (++)
HAL_USART_TransmitReceive_DMA() in full duplex mode (++)
HAL_USART_DMAPause() (++) HAL_USART_DMAResume() (++)
HAL_USART_DMAStop() (#) A set of Transfer Complete Callbacks are provided in
Non_Blocking mode: (++) HAL_USART_TxCpltCallback() (++)
HAL_USART_RxCpltCallback() (++) HAL_USART_TxHalfCpltCallback() (++)
HAL_USART_RxHalfCpltCallback() (++) HAL_USART_ErrorCallback() (++)
HAL_USART_TxRxCpltCallback() (#) Non-Blocking mode transfers could be aborted using
Abort API's :
HAL_USART_Abort()
HAL_USART_Abort_IT() (#) For Abort services based on interrupts
(HAL_USART_Abort_IT), a Abort Complete Callbacks is provided:
HAL_USART_AbortCpltCallback() (#) In Non-Blocking mode transfers, possible errors
are split into 2 categories. Errors are handled as follows :
Error is considered as Recoverable and non blocking : Transfer could go till end, but
error severity is to be evaluated by user : this concerns Frame Error, Parity Error or
Noise Error in Interrupt mode reception . Received character is then retrieved and
stored in Rx buffer, Error code is set to allow user to identify error type, and
HAL_USART_ErrorCallback() user callback is executed. Transfer is kept ongoing on
USART side. If user wants to abort it, Abort services should be called by user.
Error is considered as Blocking : Transfer could not be completed properly and is
aborted. This concerns Overrun Error In Interrupt mode reception and all errors in
DMA mode. Error code is set to allow user to identify error type, and
HAL_USART_ErrorCallback() user callback is executed.
This section contains the following APIs:
HAL_USART_Transmit()
HAL_USART_Receive()
HAL_USART_TransmitReceive()
HAL_USART_Transmit_IT()
HAL_USART_Receive_IT()
HAL_USART_TransmitReceive_IT()
HAL_USART_Transmit_DMA()
HAL_USART_Receive_DMA()
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HAL_USART_TransmitReceive_DMA()
HAL_USART_DMAPause()
HAL_USART_DMAResume()
HAL_USART_DMAStop()
HAL_USART_Abort()
HAL_USART_Abort_IT()
HAL_USART_IRQHandler()
HAL_USART_TxCpltCallback()
HAL_USART_TxHalfCpltCallback()
HAL_USART_RxCpltCallback()
HAL_USART_RxHalfCpltCallback()
HAL_USART_TxRxCpltCallback()
HAL_USART_ErrorCallback()
HAL_USART_AbortCpltCallback()
50.2.4 Peripheral State and Error functions
This subsection provides functions allowing to :
Return the USART handle state
Return the USART handle error code
This section contains the following APIs:
HAL_USART_GetState()
HAL_USART_GetError()
50.2.5 Detailed description of functions
HAL_USART_Init
Function name
HAL_StatusTypeDef HAL_USART_Init
(USART_HandleTypeDef * husart)
Function description
Initialize the USART mode according to the specified parameters
in the USART_InitTypeDef and initialize the associated handle.
Parameters
husart: USART handle.
Return values
HAL: status
HAL_USART_DeInit
Function name
HAL_StatusTypeDef HAL_USART_DeInit
(USART_HandleTypeDef * husart)
Function description
DeInitialize the USART peripheral.
Parameters
husart: USART handle.
Return values
HAL: status
HAL_USART_MspInit
Function name
void HAL_USART_MspInit (USART_HandleTypeDef * husart)
Function description
Initialize the USART MSP.
Parameters
husart: USART handle.
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Return values
None
HAL_USART_MspDeInit
Function name
void HAL_USART_MspDeInit (USART_HandleTypeDef *
husart)
Function description
DeInitialize the USART MSP.
Parameters
husart: USART handle.
Return values
None
HAL_USART_Transmit
Function name
HAL_StatusTypeDef HAL_USART_Transmit
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint16_t
Size, uint32_t Timeout)
Function description
Simplex send an amount of data in blocking mode.
Parameters
husart: USART handle.
pTxData: Pointer to data buffer.
Size: Amount of data to be sent.
Timeout: Timeout duration.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_Receive
Function name
HAL_StatusTypeDef HAL_USART_Receive
(USART_HandleTypeDef * husart, uint8_t * pRxData, uint16_t
Size, uint32_t Timeout)
Function description
Receive an amount of data in blocking mode.
Parameters
husart: USART handle.
pRxData: Pointer to data buffer.
Size: Amount of data to be received.
Timeout: Timeout duration.
Return values
HAL: status
Notes
To receive synchronous data, dummy data are
simultaneously transmitted.
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
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required to ensure proper alignment for pTxData.
HAL_USART_TransmitReceive
Function name
HAL_StatusTypeDef HAL_USART_TransmitReceive
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size, uint32_t Timeout)
Function description
Full-Duplex Send and Receive an amount of data in blocking
mode.
Parameters
husart: USART handle.
pTxData: pointer to TX data buffer.
pRxData: pointer to RX data buffer.
Size: amount of data to be sent (same amount to be
received).
Timeout: Timeout duration.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_Transmit_IT
Function name
HAL_StatusTypeDef HAL_USART_Transmit_IT
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint16_t
Size)
Function description
Send an amount of data in interrupt mode.
Parameters
husart: USART handle.
pTxData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_Receive_IT
Function name
HAL_StatusTypeDef HAL_USART_Receive_IT
(USART_HandleTypeDef * husart, uint8_t * pRxData, uint16_t
Size)
Function description
Receive an amount of data in interrupt mode.
Parameters
husart: USART handle.
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pRxData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
Notes
To receive synchronous data, dummy data are
simultaneously transmitted.
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_TransmitReceive_IT
Function name
HAL_StatusTypeDef HAL_USART_TransmitReceive_IT
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size)
Function description
Full-Duplex Send and Receive an amount of data in interrupt
mode.
Parameters
husart: USART handle.
pTxData: pointer to TX data buffer.
pRxData: pointer to RX data buffer.
Size: amount of data to be sent (same amount to be
received).
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_Transmit_DMA
Function name
HAL_StatusTypeDef HAL_USART_Transmit_DMA
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint16_t
Size)
Function description
Send an amount of data in DMA mode.
Parameters
husart: USART handle.
pTxData: pointer to data buffer.
Size: amount of data to be sent.
Return values
HAL: status
Notes
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
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specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_Receive_DMA
Function name
HAL_StatusTypeDef HAL_USART_Receive_DMA
(USART_HandleTypeDef * husart, uint8_t * pRxData, uint16_t
Size)
Function description
Receive an amount of data in DMA mode.
Parameters
husart: USART handle.
pRxData: pointer to data buffer.
Size: amount of data to be received.
Return values
HAL: status
Notes
When the USART parity is enabled (PCE = 1), the received
data contain the parity bit (MSB position).
The USART DMA transmit channel must be configured in
order to generate the clock for the slave.
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
HAL_USART_TransmitReceive_DMA
Function name
HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA
(USART_HandleTypeDef * husart, uint8_t * pTxData, uint8_t *
pRxData, uint16_t Size)
Function description
Full-Duplex Transmit Receive an amount of data in non-blocking
mode.
Parameters
husart: USART handle.
pTxData: pointer to TX data buffer.
pRxData: pointer to RX data buffer.
Size: amount of data to be received/sent.
Return values
HAL: status
Notes
When the USART parity is enabled (PCE = 1) the data
received contain the parity bit.
When UART parity is not enabled (PCE = 0), and Word
Length is configured to 9 bits (M1-M0 = 01), address of user
data buffer containing data to be sent, should be aligned on a
half word frontier (16 bits) (as sent data will be handled using
u16 pointer cast). Depending on compilation chain, use of
specific alignment compilation directives or pragmas might be
required to ensure proper alignment for pTxData.
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HAL_USART_DMAPause
Function name
HAL_StatusTypeDef HAL_USART_DMAPause
(USART_HandleTypeDef * husart)
Function description
Pause the DMA Transfer.
Parameters
husart: USART handle.
Return values
HAL: status
HAL_USART_DMAResume
Function name
HAL_StatusTypeDef HAL_USART_DMAResume
(USART_HandleTypeDef * husart)
Function description
Resume the DMA Transfer.
Parameters
husart: USART handle.
Return values
HAL: status
HAL_USART_DMAStop
Function name
HAL_StatusTypeDef HAL_USART_DMAStop
(USART_HandleTypeDef * husart)
Function description
Stop the DMA Transfer.
Parameters
husart: USART handle.
Return values
HAL: status
HAL_USART_Abort
Function name
HAL_StatusTypeDef HAL_USART_Abort
(USART_HandleTypeDef * husart)
Function description
Abort ongoing transfers (blocking mode).
Parameters
husart: USART handle.
Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable USART Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort (in
case of transfer in DMA mode)Set handle State to READY
This procedure is executed in blocking mode : when exiting
function, Abort is considered as completed.
HAL_USART_Abort_IT
Function name
HAL_StatusTypeDef HAL_USART_Abort_IT
(USART_HandleTypeDef * husart)
Function description
Abort ongoing transfers (Interrupt mode).
Parameters
husart: USART handle.
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Return values
HAL: status
Notes
This procedure could be used for aborting any ongoing
transfer started in Interrupt or DMA mode. This procedure
performs following operations : Disable USART Interrupts (Tx
and Rx)Disable the DMA transfer in the peripheral register (if
enabled)Abort DMA transfer by calling HAL_DMA_Abort_IT
(in case of transfer in DMA mode)Set handle State to
READYAt abort completion, call user abort complete callback
This procedure is executed in Interrupt mode, meaning that
abort procedure could be considered as completed only when
user abort complete callback is executed (not when exiting
function).
HAL_USART_IRQHandler
Function name
void HAL_USART_IRQHandler (USART_HandleTypeDef *
husart)
Function description
Handle USART interrupt request.
Parameters
husart: USART handle.
Return values
None
HAL_USART_TxCpltCallback
Function name
void HAL_USART_TxCpltCallback (USART_HandleTypeDef *
husart)
Function description
Tx Transfer completed callback.
Parameters
husart: USART handle.
Return values
None
HAL_USART_TxHalfCpltCallback
Function name
void HAL_USART_TxHalfCpltCallback
(USART_HandleTypeDef * husart)
Function description
Tx Half Transfer completed callback.
Parameters
husart: USART handle.
Return values
None
HAL_USART_RxCpltCallback
Function name
void HAL_USART_RxCpltCallback (USART_HandleTypeDef *
husart)
Function description
Rx Transfer completed callback.
Parameters
husart: USART handle.
Return values
None
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HAL_USART_RxHalfCpltCallback
Function name
void HAL_USART_RxHalfCpltCallback
(USART_HandleTypeDef * husart)
Function description
Rx Half Transfer completed callback.
Parameters
husart: USART handle.
Return values
None
HAL_USART_TxRxCpltCallback
Function name
void HAL_USART_TxRxCpltCallback (USART_HandleTypeDef
* husart)
Function description
Tx/Rx Transfers completed callback for the non-blocking process.
Parameters
husart: USART handle.
Return values
None
HAL_USART_ErrorCallback
Function name
void HAL_USART_ErrorCallback (USART_HandleTypeDef *
husart)
Function description
USART error callback.
Parameters
husart: USART handle.
Return values
None
HAL_USART_AbortCpltCallback
Function name
void HAL_USART_AbortCpltCallback (USART_HandleTypeDef
* husart)
Function description
USART Abort Complete callback.
Parameters
husart: USART handle.
Return values
None
HAL_USART_GetState
Function name
HAL_USART_StateTypeDef HAL_USART_GetState
(USART_HandleTypeDef * husart)
Function description
Return the USART handle state.
Parameters
husart: : pointer to a USART_HandleTypeDef structure that
contains the configuration information for the specified
USART.
Return values
USART: handle state
HAL_USART_GetError
Function name
uint32_t HAL_USART_GetError (USART_HandleTypeDef *
husart)
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Function description
Return the USART error code.
Parameters
husart: : pointer to a USART_HandleTypeDef structure that
contains the configuration information for the specified
USART.
Return values
USART: handle Error Code
50.3 USART Firmware driver defines
50.3.1 USART
USART Clock
USART_CLOCK_DISABLE
USART clock disable
USART_CLOCK_ENABLE
USART clock enable
USART Clock Phase
USART_PHASE_1EDGE
USART frame phase on first clock transition
USART_PHASE_2EDGE
USART frame phase on second clock transition
USART Clock Polarity
USART_POLARITY_LOW
USART Clock signal is steady Low
USART_POLARITY_HIGH
USART Clock signal is steady High
USART Exported Macros
__HAL_USART_RESET_HANDLE_
STATE
Description:
Reset USART handle state.
Parameters:
__HANDLE__: USART handle.
Return value:
None
__HAL_USART_FLUSH_DRREGIST
ER
Description:
Flush the USART Data registers.
Parameters:
__HANDLE__: specifies the USART Handle.
__HAL_USART_GET_FLAG
Description:
Check whether the specified USART flag is
set or not.
Parameters:
__HANDLE__: specifies the USART Handle
__FLAG__: specifies the flag to check. This
parameter can be one of the following values:
USART_FLAG_REACK Receive enable
acknowledge flag
USART_FLAG_TEACK Transmit enable
acknowledge flag
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USART_FLAG_BUSY Busy flag
USART_FLAG_CTS CTS Change flag
USART_FLAG_TXE Transmit data
register empty flag
USART_FLAG_TC Transmission
Complete flag
USART_FLAG_RXNE Receive data
register not empty flag
USART_FLAG_IDLE Idle Line detection
flag
USART_FLAG_ORE OverRun Error flag
USART_FLAG_NE Noise Error flag
USART_FLAG_FE Framing Error flag
USART_FLAG_PE Parity Error flag
Return value:
The: new state of __FLAG__ (TRUE or
FALSE).
__HAL_USART_CLEAR_FLAG
Description:
Clear the specified USART pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
__FLAG__: specifies the flag to check. This
parameter can be any combination of the
following values:
USART_CLEAR_PEF
USART_CLEAR_FEF
USART_CLEAR_NEF
USART_CLEAR_OREF
USART_CLEAR_IDLEF
USART_CLEAR_TCF
USART_CLEAR_CTSF
Return value:
None
__HAL_USART_CLEAR_PEFLAG
Description:
Clear the USART PE pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_CLEAR_FEFLAG
Description:
Clear the USART FE pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
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Return value:
None
__HAL_USART_CLEAR_NEFLAG
Description:
Clear the USART NE pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_CLEAR_OREFLAG
Description:
Clear the USART ORE pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_CLEAR_IDLEFLAG
Description:
Clear the USART IDLE pending flag.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_ENABLE_IT
Description:
Enable the specified USART interrupt.
Parameters:
__HANDLE__: specifies the USART Handle.
__INTERRUPT__: specifies the USART
interrupt source to enable. This parameter
can be one of the following values:
USART_IT_TXE Transmit Data Register
empty interrupt
USART_IT_TC Transmission complete
interrupt
USART_IT_RXNE Receive Data register
not empty interrupt
USART_IT_IDLE Idle line detection
interrupt
USART_IT_PE Parity Error interrupt
USART_IT_ERR Error interrupt(Frame
error, noise error, overrun error)
Return value:
None
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__HAL_USART_DISABLE_IT
Description:
Disable the specified USART interrupt.
Parameters:
__HANDLE__: specifies the USART Handle.
__INTERRUPT__: specifies the USART
interrupt source to disable. This parameter
can be one of the following values:
USART_IT_TXE Transmit Data Register
empty interrupt
USART_IT_TC Transmission complete
interrupt
USART_IT_RXNE Receive Data register
not empty interrupt
USART_IT_IDLE Idle line detection
interrupt
USART_IT_PE Parity Error interrupt
USART_IT_ERR Error interrupt(Frame
error, noise error, overrun error)
Return value:
None
__HAL_USART_GET_IT
Description:
Check whether the specified USART interrupt
has occurred or not.
Parameters:
__HANDLE__: specifies the USART Handle.
__IT__: specifies the USART interrupt source
to check. This parameter can be one of the
following values:
USART_IT_TXE Transmit Data Register
empty interrupt
USART_IT_TC Transmission complete
interrupt
USART_IT_RXNE Receive Data register
not empty interrupt
USART_IT_IDLE Idle line detection
interrupt
USART_IT_ORE OverRun Error
interrupt
USART_IT_NE Noise Error interrupt
USART_IT_FE Framing Error interrupt
USART_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_USART_GET_IT_SOURCE
Description:
Check whether the specified USART interrupt
source is enabled or not.
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Parameters:
__HANDLE__: specifies the USART Handle.
__IT__: specifies the USART interrupt source
to check. This parameter can be one of the
following values:
USART_IT_TXE Transmit Data Register
empty interrupt
USART_IT_TC Transmission complete
interrupt
USART_IT_RXNE Receive Data register
not empty interrupt
USART_IT_IDLE Idle line detection
interrupt
USART_IT_ORE OverRun Error
interrupt
USART_IT_NE Noise Error interrupt
USART_IT_FE Framing Error interrupt
USART_IT_PE Parity Error interrupt
Return value:
The: new state of __IT__ (TRUE or FALSE).
__HAL_USART_CLEAR_IT
Description:
Clear the specified USART ISR flag, in
setting the proper ICR register flag.
Parameters:
__HANDLE__: specifies the USART Handle.
__IT_CLEAR__: specifies the interrupt clear
register flag that needs to be set to clear the
corresponding interrupt. This parameter can
be one of the following values:
USART_CLEAR_PEF Parity Error Clear
Flag
USART_CLEAR_FEF Framing Error
Clear Flag
USART_CLEAR_NEF Noise detected
Clear Flag
USART_CLEAR_OREF OverRun Error
Clear Flag
USART_CLEAR_IDLEF IDLE line
detected Clear Flag
USART_CLEAR_TCF Transmission
Complete Clear Flag
USART_CLEAR_CTSF CTS Interrupt
Clear Flag
Return value:
None
__HAL_USART_SEND_REQ
Description:
Set a specific USART request flag.
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Parameters:
__HANDLE__: specifies the USART Handle.
__REQ__: specifies the request flag to set.
This parameter can be one of the following
values:
USART_RXDATA_FLUSH_REQUEST
Receive Data flush Request
USART_TXDATA_FLUSH_REQUEST
Transmit data flush Request
Return value:
None
__HAL_USART_ONE_BIT_SAMPLE
_ ENABLE
Description:
Enable the USART one bit sample method.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_ONE_BIT_SAMPLE
_
DISABLE
Description:
Disable the USART one bit sample method.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_ENABLE
Description:
Enable USART.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
__HAL_USART_DISABLE
Description:
Disable USART.
Parameters:
__HANDLE__: specifies the USART Handle.
Return value:
None
USART Exported Types
HAL_USART_ERROR_NONE
No error
HAL_USART_ERROR_PE
Parity error
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HAL_USART_ERROR_NE
Noise error
HAL_USART_ERROR_FE
frame error
HAL_USART_ERROR_ORE
Overrun error
HAL_USART_ERROR_DMA
DMA transfer error
USART Flags
USART_FLAG_REACK
USART receive enable acknowledge flag
USART_FLAG_TEACK
USART transmit enable acknowledge flag
USART_FLAG_BUSY
USART busy flag
USART_FLAG_CTS
USART clear to send flag
USART_FLAG_CTSIF
USART clear to send interrupt flag
USART_FLAG_LBDF
USART LIN break detection flag
USART_FLAG_TXE
USART transmit data register empty
USART_FLAG_TC
USART transmission complete
USART_FLAG_RXNE
USART read data register not empty
USART_FLAG_IDLE
USART idle flag
USART_FLAG_ORE
USART overrun error
USART_FLAG_NE
USART noise error
USART_FLAG_FE
USART frame error
USART_FLAG_PE
USART parity error
USART Interruption Flags Mask
USART_IT_MASK
USART interruptions flags mask
USART Interrupts Definition
USART_IT_PE
USART parity error interruption
USART_IT_TXE
USART transmit data register empty interruption
USART_IT_TC
USART transmission complete interruption
USART_IT_RXNE
USART read data register not empty interruption
USART_IT_IDLE
USART idle interruption
USART_IT_ERR
USART error interruption
USART_IT_ORE
USART overrun error interruption
USART_IT_NE
USART noise error interruption
USART_IT_FE
USART frame error interruption
USART Interruption Clear Flags
USART_CLEAR_PEF
Parity Error Clear Flag
USART_CLEAR_FEF
Framing Error Clear Flag
USART_CLEAR_NEF
Noise detected Clear Flag
USART_CLEAR_OREF
OverRun Error Clear Flag
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USART_CLEAR_IDLEF
IDLE line detected Clear Flag
USART_CLEAR_TCF
Transmission Complete Clear Flag
USART_CLEAR_CTSF
CTS Interrupt Clear Flag
USART Last Bit
USART_LASTBIT_DISABLE
USART frame last data bit clock pulse not output to SCLK
pin
USART_LASTBIT_ENABLE
USART frame last data bit clock pulse output to SCLK pin
USART Mode
USART_MODE_RX
RX mode
USART_MODE_TX
TX mode
USART_MODE_TX_RX
RX and TX mode
USART Parity
USART_PARITY_NONE
No parity
USART_PARITY_EVEN
Even parity
USART_PARITY_ODD
Odd parity
USART Request Parameters
USART_RXDATA_FLUSH_REQUEST
Receive Data flush Request
USART_TXDATA_FLUSH_REQUEST
Transmit data flush Request
USART Number of Stop Bits
USART_STOPBITS_0_5
USART frame with 0.5 stop bit
USART_STOPBITS_1
USART frame with 1 stop bit
USART_STOPBITS_1_5
USART frame with 1.5 stop bits
USART_STOPBITS_2
USART frame with 2 stop bits
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51.1 USARTEx Firmware driver defines
51.1.1 USARTEx
USARTEx Word Length
USART_WORDLENGTH_7B
7-bit long USART frame
USART_WORDLENGTH_8B
8-bit long USART frame
USART_WORDLENGTH_9B
9-bit long USART frame
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52.1 WWDG Firmware driver registers structures
52.1.1 WWDG_InitTypeDef
Data Fields
uint32_t Prescaler
uint32_t Window
uint32_t Counter
uint32_t EWIMode
Field Documentation
uint32_t WWDG_InitTypeDef::Prescaler
Specifies the prescaler value of the WWDG. This parameter can be a value of
WWDG_Prescaler
uint32_t WWDG_InitTypeDef::Window
Specifies the WWDG window value to be compared to the downcounter. This
parameter must be a number Min_Data = 0x40 and Max_Data = 0x7F
uint32_t WWDG_InitTypeDef::Counter
Specifies the WWDG free-running downcounter value. This parameter must be a
number between Min_Data = 0x40 and Max_Data = 0x7F
uint32_t WWDG_InitTypeDef::EWIMode
Specifies if WWDG Early Wakeup Interupt is enable or not. This parameter can be a
value of WWDG_EWI_Mode
52.1.2 WWDG_HandleTypeDef
Data Fields
WWDG_TypeDef * Instance
WWDG_InitTypeDef Init
Field Documentation
WWDG_TypeDef* WWDG_HandleTypeDef::Instance
Register base address
WWDG_InitTypeDef WWDG_HandleTypeDef::Init
WWDG required parameters
52.2 WWDG Firmware driver API description
52.2.1 WWDG specific features
Once enabled the WWDG generates a system reset on expiry of a programmed time
period, unless the program refreshes the counter (T[6;0] downcounter) before reaching
0x3F value (i.e. a reset is generated when the counter value rolls over from 0x40 to 0x3F).
An MCU reset is also generated if the counter value is refreshed before the counter
has reached the refresh window value. This implies that the counter must be refreshed
in a limited window.
Once enabled the WWDG cannot be disabled except by a system reset.
WWDGRST flag in RCC_CSR register informs when a WWDG reset has occurred
(check available with __HAL_RCC_GET_FLAG(RCC_FLAG_WWDGRST)).
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The WWDG downcounter input clock is derived from the APB clock divided by a
programmable prescaler.
WWDG downcounter clock (Hz) = PCLK1 / (4096 * Prescaler)
WWDG timeout (ms) = (1000 * (T[5;0] + 1)) / (WWDG downcounter clock) where
T[5;0] are the lowest 6 bits of downcounter.
WWDG Counter refresh is allowed between the following limits :
min time (ms) = (1000 * (T[5;0] - Window)) / (WWDG downcounter clock)
max time (ms) = (1000 * (T[5;0] - 0x40)) / (WWDG downcounter clock)
Min-max timeout value @32 MHz(PCLK1): ~128.0 us / ~65.54 ms
The Early Wakeup Interrupt (EWI) can be used if specific safety operations or data
logging must be performed before the actual reset is generated. When the
downcounter reaches the value 0x40, an EWI interrupt is generated and the
corresponding interrupt service routine (ISR) can be used to trigger specific actions
(such as communications or data logging), before resetting the device. In some
applications, the EWI interrupt can be used to manage a software system check
and/or system recovery/graceful degradation, without generating a WWDG reset. In
this case, the corresponding interrupt service routine (ISR) should reload the WWDG
counter to avoid the WWDG reset, then trigger the required actions. Note:When the
EWI interrupt cannot be served, e.g. due to a system lock in a higher priority task, the
WWDG reset will eventually be generated.
Debug mode : When the microcontroller enters debug mode (core halted), the WWDG
counter either continues to work normally or stops, depending on
DBG_WWDG_STOP configuration bit in DBG module, accessible through
__HAL_DBGMCU_FREEZE_WWDG() and __HAL_DBGMCU_UNFREEZE_WWDG()
macros
52.2.2 How to use this driver
Enable WWDG APB1 clock using __HAL_RCC_WWDG_CLK_ENABLE().
Set the WWDG prescaler, refresh window, counter value and Early Wakeup Interrupt
mode using using HAL_WWDG_Init() function. This enables WWDG peripheral and
the downcounter starts downcounting from given counter value. Init function can be
called again to modify all watchdog parameters, however if EWI mode has been set
once, it can't be clear until next reset.
The application program must refresh the WWDG counter at regular intervals during
normal operation to prevent an MCU reset using HAL_WWDG_Refresh() function.
This operation must occur only when the counter is lower than the window value
already programmed.
if Early Wakeup Interrupt mode is enable an interrupt is generated when the counter
reaches 0x40. User can add his own code in weak function
HAL_WWDG_EarlyWakeupCallback().
WWDG HAL driver macros list
Below the list of most used macros in WWDG HAL driver.
__HAL_WWDG_GET_IT_SOURCE: Check the selected WWDG's interrupt source.
__HAL_WWDG_GET_FLAG: Get the selected WWDG's flag status.
__HAL_WWDG_CLEAR_FLAG: Clear the WWDG's pending flags.
52.2.3 Initialization and Configuration functions
This section provides functions allowing to:
Initialize and start the WWDG according to the specified parameters in the
WWDG_InitTypeDef of associated handle.
Initialize the WWDG MSP.
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This section contains the following APIs:
HAL_WWDG_Init()
HAL_WWDG_MspInit()
52.2.4 IO operation functions
This section provides functions allowing to:
Refresh the WWDG.
Handle WWDG interrupt request and associated function callback.
This section contains the following APIs:
HAL_WWDG_Refresh()
HAL_WWDG_IRQHandler()
HAL_WWDG_EarlyWakeupCallback()
52.2.5 Detailed description of functions
HAL_WWDG_Init
Function name
HAL_StatusTypeDef HAL_WWDG_Init
(WWDG_HandleTypeDef * hwwdg)
Function description
Initialize the WWDG according to the specified.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
HAL: status
HAL_WWDG_MspInit
Function name
void HAL_WWDG_MspInit (WWDG_HandleTypeDef * hwwdg)
Function description
Initialize the WWDG MSP.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
None
Notes
When rewriting this function in user file, mechanism may be
added to avoid multiple initialize when HAL_WWDG_Init
function is called again to change parameters.
HAL_WWDG_Refresh
Function name
HAL_StatusTypeDef HAL_WWDG_Refresh
(WWDG_HandleTypeDef * hwwdg)
Function description
Refresh the WWDG.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
HAL: status
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HAL_WWDG_IRQHandler
Function name
void HAL_WWDG_IRQHandler (WWDG_HandleTypeDef *
hwwdg)
Function description
Handle WWDG interrupt request.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
None
Notes
The Early Wakeup Interrupt (EWI) can be used if specific
safety operations or data logging must be performed before
the actual reset is generated. The EWI interrupt is enabled by
calling HAL_WWDG_Init function with EWIMode set to
WWDG_EWI_ENABLE. When the downcounter reaches the
value 0x40, and EWI interrupt is generated and the
corresponding Interrupt Service Routine (ISR) can be used to
trigger specific actions (such as communications or data
logging), before resetting the device.
HAL_WWDG_EarlyWakeupCallback
Function name
void HAL_WWDG_EarlyWakeupCallback
(WWDG_HandleTypeDef * hwwdg)
Function description
WWDG Early Wakeup callback.
Parameters
hwwdg: pointer to a WWDG_HandleTypeDef structure that
contains the configuration information for the specified
WWDG module.
Return values
None
52.3 WWDG Firmware driver defines
52.3.1 WWDG
WWDG Early Wakeup Interrupt Mode
WWDG_EWI_DISABLE
EWI Disable
WWDG_EWI_ENABLE
EWI Enable
WWDG Exported Macros
__HAL_WWDG_ENABLE
Description:
Enable the WWDG peripheral.
Parameters:
__HANDLE__: WWDG handle
Return value:
None
__HAL_WWDG_ENABLE_IT
Description:
Enable the WWDG early wakeup interrupt.
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Parameters:
__HANDLE__: WWDG handle
__INTERRUPT__: specifies the interrupt to
enable. This parameter can be one of the
following values:
WWDG_IT_EWI: Early wakeup interrupt
Return value:
None
Notes:
Once enabled this interrupt cannot be disabled
except by a system reset.
__HAL_WWDG_GET_IT
Description:
Check whether the selected WWDG interrupt
has occurred or not.
Parameters:
__HANDLE__: WWDG handle
__INTERRUPT__: specifies the it to check. This
parameter can be one of the following values:
WWDG_FLAG_EWIF: Early wakeup
interrupt IT
Return value:
The: new state of WWDG_FLAG (SET or
RESET).
__HAL_WWDG_CLEAR_IT
Description:
Clear the WWDG interrupt pending bits.
Parameters:
__HANDLE__: WWDG handle
__INTERRUPT__: specifies the interrupt
pending bit to clear. This parameter can be one
of the following values:
WWDG_FLAG_EWIF: Early wakeup
interrupt flag
__HAL_WWDG_GET_FLAG
Description:
Check whether the specified WWDG flag is set
or not.
Parameters:
__HANDLE__: WWDG handle
__FLAG__: specifies the flag to check. This
parameter can be one of the following values:
WWDG_FLAG_EWIF: Early wakeup
interrupt flag
Return value:
The: new state of WWDG_FLAG (SET or
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RESET).
__HAL_WWDG_CLEAR_FLAG
Description:
Clear the WWDG's pending flags.
Parameters:
__HANDLE__: WWDG handle
__FLAG__: specifies the flag to clear. This
parameter can be one of the following values:
WWDG_FLAG_EWIF: Early wakeup
interrupt flag
Return value:
None
__HAL_WWDG_GET_IT_SOURCE
Description:
Check whether the specified WWDG interrupt
source is enabled or not.
Parameters:
__HANDLE__: WWDG Handle.
__INTERRUPT__: specifies the WWDG
interrupt source to check. This parameter can
be one of the following values:
WWDG_IT_EWI: Early Wakeup Interrupt
Return value:
state: of __INTERRUPT__ (TRUE or FALSE).
WWDG Flag definition
WWDG_FLAG_EWIF
Early wakeup interrupt flag
WWDG Interrupt definition
WWDG_IT_EWI
Early wakeup interrupt
WWDG Prescaler
WWDG_PRESCALER_1
WWDG counter clock = (PCLK1/4096)/1
WWDG_PRESCALER_2
WWDG counter clock = (PCLK1/4096)/2
WWDG_PRESCALER_4
WWDG counter clock = (PCLK1/4096)/4
WWDG_PRESCALER_8
WWDG counter clock = (PCLK1/4096)/8
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53 LL ADC Generic Driver
53.1 ADC Firmware driver registers structures
53.1.1 LL_ADC_CommonInitTypeDef
Data Fields
uint32_t CommonClock
Field Documentation
uint32_t LL_ADC_CommonInitTypeDef::CommonClock
Set parameter common to several ADC: Clock source and prescaler. This parameter
can be a value of ADC_LL_EC_COMMON_CLOCK_SOURCEThis feature can be
modified afterwards using unitary function LL_ADC_SetCommonClock().
53.1.2 LL_ADC_InitTypeDef
Data Fields
uint32_t Clock
uint32_t Resolution
uint32_t DataAlignment
uint32_t LowPowerMode
Field Documentation
uint32_t LL_ADC_InitTypeDef::Clock
Set ADC instance clock source and prescaler. This parameter can be a value of
ADC_LL_EC_CLOCK_SOURCE
Note:On this STM32 serie, this parameter has some clock ratio constraints: ADC
clock synchronous (from PCLK) with prescaler 1 must be enabled only if PCLK has a
50% duty clock cycle (APB prescaler configured inside the RCC must be bypassed
and the system clock must by 50% duty cycle). This feature can be modified
afterwards using unitary function LL_ADC_SetClock(). For more details, refer to
description of this function.
uint32_t LL_ADC_InitTypeDef::Resolution
Set ADC resolution. This parameter can be a value of
ADC_LL_EC_RESOLUTIONThis feature can be modified afterwards using unitary
function LL_ADC_SetResolution().
uint32_t LL_ADC_InitTypeDef::DataAlignment
Set ADC conversion data alignment. This parameter can be a value of
ADC_LL_EC_DATA_ALIGNThis feature can be modified afterwards using unitary
function LL_ADC_SetDataAlignment().
uint32_t LL_ADC_InitTypeDef::LowPowerMode
Set ADC low power mode. This parameter can be a value of
ADC_LL_EC_LP_MODEThis feature can be modified afterwards using unitary
function LL_ADC_SetLowPowerMode().
53.1.3 LL_ADC_REG_InitTypeDef
Data Fields
uint32_t TriggerSource
uint32_t SequencerDiscont
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uint32_t ContinuousMode
uint32_t DMATransfer
uint32_t Overrun
Field Documentation
uint32_t LL_ADC_REG_InitTypeDef::TriggerSource
Set ADC group regular conversion trigger source: internal (SW start) or from external
IP (timer event, external interrupt line). This parameter can be a value of
ADC_LL_EC_REG_TRIGGER_SOURCE
Note:On this STM32 serie, setting trigger source to external trigger also set trigger
polarity to rising edge (default setting for compatibility with some ADC on other STM32
families having this setting set by HW default value). In case of need to modify trigger
edge, use function LL_ADC_REG_SetTriggerEdge(). This feature can be modified
afterwards using unitary function LL_ADC_REG_SetTriggerSource().
uint32_t LL_ADC_REG_InitTypeDef::SequencerDiscont
Set ADC group regular sequencer discontinuous mode: sequence subdivided and
scan conversions interrupted every selected number of ranks. This parameter can be
a value of ADC_LL_EC_REG_SEQ_DISCONT_MODE
Note:This parameter has an effect only if group regular sequencer is enabled (several
ADC channels enabled in group regular sequencer). This feature can be modified
afterwards using unitary function LL_ADC_REG_SetSequencerDiscont().
uint32_t LL_ADC_REG_InitTypeDef::ContinuousMode
Set ADC continuous conversion mode on ADC group regular, whether ADC
conversions are performed in single mode (one conversion per trigger) or in
continuous mode (after the first trigger, following conversions launched successively
automatically). This parameter can be a value of
ADC_LL_EC_REG_CONTINUOUS_MODE Note: It is not possible to enable both
ADC group regular continuous mode and discontinuous mode.This feature can be
modified afterwards using unitary function LL_ADC_REG_SetContinuousMode().
uint32_t LL_ADC_REG_InitTypeDef::DMATransfer
Set ADC group regular conversion data transfer: no transfer or transfer by DMA, and
DMA requests mode. This parameter can be a value of
ADC_LL_EC_REG_DMA_TRANSFERThis feature can be modified afterwards using
unitary function LL_ADC_REG_SetDMATransfer().
uint32_t LL_ADC_REG_InitTypeDef::Overrun
Set ADC group regular behavior in case of overrun: data preserved or overwritten.
This parameter can be a value of ADC_LL_EC_REG_OVR_DATA_BEHAVIORThis
feature can be modified afterwards using unitary function
LL_ADC_REG_SetOverrun().
53.2 ADC Firmware driver API description
53.2.1 Detailed description of functions
LL_ADC_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_ADC_DMA_GetRegAddr
(ADC_TypeDef * ADCx, uint32_t Register)
Function description
Function to help to configure DMA transfer from ADC: retrieve the
ADC register address from ADC instance and a list of ADC
registers intended to be used (most commonly) with DMA transfer.
Parameters
ADCx: ADC instance
Register: This parameter can be one of the following values:
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LL_ADC_DMA_REG_REGULAR_DATA
Return values
ADC: register address
Notes
These ADC registers are data registers: when ADC
conversion data is available in ADC data registers, ADC
generates a DMA transfer request.
This macro is intended to be used with LL DMA driver, refer to
function "LL_DMA_ConfigAddresses()". Example:
LL_DMA_ConfigAddresses(DMA1, LL_DMA_CHANNEL_1,
LL_ADC_DMA_GetRegAddr(ADC1,
LL_ADC_DMA_REG_REGULAR_DATA), (uint32_t)&< array
or variable >,
LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
For devices with several ADC: in multimode, some devices
use a different data register outside of ADC instance scope
(common data register). This macro manages this register
difference, only ADC instance has to be set as parameter.
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_DMA_GetRegAddr
LL_ADC_SetCommonClock
Function name
__STATIC_INLINE void LL_ADC_SetCommonClock
(ADC_Common_TypeDef * ADCxy_COMMON, uint32_t
CommonClock)
Function description
Set parameter common to several ADC: Clock source and
prescaler.
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
CommonClock: This parameter can be one of the following
values: (1) ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding ADC
instance clock is set to clock source asynchronous. (refer to
function LL_ADC_SetClock() ).
LL_ADC_CLOCK_ASYNC_DIV1 (1)
LL_ADC_CLOCK_ASYNC_DIV2 (1)
LL_ADC_CLOCK_ASYNC_DIV4 (1)
LL_ADC_CLOCK_ASYNC_DIV6 (1)
LL_ADC_CLOCK_ASYNC_DIV8 (1)
LL_ADC_CLOCK_ASYNC_DIV10 (1)
LL_ADC_CLOCK_ASYNC_DIV12 (1)
LL_ADC_CLOCK_ASYNC_DIV16 (1)
LL_ADC_CLOCK_ASYNC_DIV32 (1)
LL_ADC_CLOCK_ASYNC_DIV64 (1)
LL_ADC_CLOCK_ASYNC_DIV128 (1)
LL_ADC_CLOCK_ASYNC_DIV256 (1)
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: All ADC instances of the ADC common group
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must be disabled. This check can be done with function
LL_ADC_IsEnabled() for each ADC instance or by using
helper macro helper macro
__LL_ADC_IS_ENABLED_ALL_COMMON_INSTANCE().
Reference Manual to
LL API cross
reference:
CCR PRESC LL_ADC_SetCommonClock
LL_ADC_GetCommonClock
Function name
__STATIC_INLINE uint32_t LL_ADC_GetCommonClock
(ADC_Common_TypeDef * ADCxy_COMMON)
Function description
Get parameter common to several ADC: Clock source and
prescaler.
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
Return values
Returned: value can be one of the following values: (1) ADC
common clock asynchonous prescaler is applied to each ADC
instance if the corresponding ADC instance clock is set to
clock source asynchronous. (refer to function
LL_ADC_SetClock() ).
LL_ADC_CLOCK_ASYNC_DIV1 (1)
LL_ADC_CLOCK_ASYNC_DIV2 (1)
LL_ADC_CLOCK_ASYNC_DIV4 (1)
LL_ADC_CLOCK_ASYNC_DIV6 (1)
LL_ADC_CLOCK_ASYNC_DIV8 (1)
LL_ADC_CLOCK_ASYNC_DIV10 (1)
LL_ADC_CLOCK_ASYNC_DIV12 (1)
LL_ADC_CLOCK_ASYNC_DIV16 (1)
LL_ADC_CLOCK_ASYNC_DIV32 (1)
LL_ADC_CLOCK_ASYNC_DIV64 (1)
LL_ADC_CLOCK_ASYNC_DIV128 (1)
LL_ADC_CLOCK_ASYNC_DIV256 (1)
Reference Manual to
LL API cross
reference:
CCR PRESC LL_ADC_GetCommonClock
LL_ADC_SetCommonFrequencyMode
Function name
__STATIC_INLINE void LL_ADC_SetCommonFrequencyMode
(ADC_Common_TypeDef * ADCxy_COMMON, uint32_t
Resolution)
Function description
Set parameter common to several ADC: Clock low frequency
mode.
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
Resolution: This parameter can be one of the following
values:
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LL_ADC_CLOCK_FREQ_MODE_HIGH
LL_ADC_CLOCK_FREQ_MODE_LOW
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CCR LFMEN LL_ADC_SetCommonFrequencyMode
LL_ADC_GetCommonFrequencyMode
Function name
__STATIC_INLINE uint32_t
LL_ADC_GetCommonFrequencyMode
(ADC_Common_TypeDef * ADCxy_COMMON)
Function description
Get parameter common to several ADC: Clock low frequency
mode.
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
Return values
Returned: value can be one of the following values:
LL_ADC_CLOCK_FREQ_MODE_HIGH
LL_ADC_CLOCK_FREQ_MODE_LOW
Reference Manual to
LL API cross
reference:
CCR LFMEN LL_ADC_GetCommonFrequencyMode
LL_ADC_SetCommonPathInternalCh
Function name
__STATIC_INLINE void LL_ADC_SetCommonPathInternalCh
(ADC_Common_TypeDef * ADCxy_COMMON, uint32_t
PathInternal)
Function description
Set parameter common to several ADC: measurement path to
internal channels (VrefInt, temperature sensor, ...).
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
PathInternal: This parameter can be a combination of the
following values: (*) value not defined in all devices: only on
STM32L053xx, STM32L063xx, STM32L073xx,
STM32L083xx.
LL_ADC_PATH_INTERNAL_NONE
LL_ADC_PATH_INTERNAL_VREFINT
LL_ADC_PATH_INTERNAL_TEMPSENSOR
LL_ADC_PATH_INTERNAL_VLCD (*)
Return values
None
Notes
One or several values can be selected. Example:
(LL_ADC_PATH_INTERNAL_VREFINT |
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LL_ADC_PATH_INTERNAL_TEMPSENSOR)
Stabilization time of measurement path to internal channel:
After enabling internal paths, before starting ADC conversion,
a delay is required for internal voltage reference and
temperature sensor stabilization time. Refer to device
datasheet. Refer to literal
LL_ADC_DELAY_VREFINT_STAB_US. Refer to literal
LL_ADC_DELAY_TEMPSENSOR_STAB_US.
ADC internal channel sampling time constraint: For ADC
conversion of internal channels, a sampling time minimum
value is required. Refer to device datasheet.
On this STM32 serie, setting of this feature is conditioned to
ADC state: All ADC instances of the ADC common group
must be disabled. This check can be done with function
LL_ADC_IsEnabled() for each ADC instance or by using
helper macro helper macro
__LL_ADC_IS_ENABLED_ALL_COMMON_INSTANCE().
Reference Manual to
LL API cross
reference:
CCR VREFEN LL_ADC_SetCommonPathInternalCh
CCR TSEN LL_ADC_SetCommonPathInternalCh
CCR VLCDEN LL_ADC_SetCommonPathInternalCh
LL_ADC_GetCommonPathInternalCh
Function name
__STATIC_INLINE uint32_t
LL_ADC_GetCommonPathInternalCh
(ADC_Common_TypeDef * ADCxy_COMMON)
Function description
Get parameter common to several ADC: measurement path to
internal channels (VrefInt, temperature sensor, ...).
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
Return values
Returned: value can be a combination of the following
values: (*) value not defined in all devices: only on
STM32L053xx, STM32L063xx, STM32L073xx,
STM32L083xx.
LL_ADC_PATH_INTERNAL_NONE
LL_ADC_PATH_INTERNAL_VREFINT
LL_ADC_PATH_INTERNAL_TEMPSENSOR
LL_ADC_PATH_INTERNAL_VLCD (*)
Notes
One or several values can be selected. Example:
(LL_ADC_PATH_INTERNAL_VREFINT |
LL_ADC_PATH_INTERNAL_TEMPSENSOR)
Reference Manual to
LL API cross
reference:
CCR VREFEN LL_ADC_GetCommonPathInternalCh
CCR TSEN LL_ADC_GetCommonPathInternalCh
CCR VLCDEN LL_ADC_GetCommonPathInternalCh
LL_ADC_SetClock
Function name
__STATIC_INLINE void LL_ADC_SetClock (ADC_TypeDef *
ADCx, uint32_t ClockSource)
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Function description
Set ADC instance clock source and prescaler.
Parameters
ADCx: ADC instance
ClockSource: This parameter can be one of the following
values: (1) Asynchronous clock prescaler can be configured
using function LL_ADC_SetCommonClock().
LL_ADC_CLOCK_SYNC_PCLK_DIV4
LL_ADC_CLOCK_SYNC_PCLK_DIV2
LL_ADC_CLOCK_SYNC_PCLK_DIV1 (2)
LL_ADC_CLOCK_ASYNC (1)
(2) Caution: This parameter has some clock ratio constraints:
This configuration must be enabled only if PCLK has a 50%
duty clock cycle (APB prescaler configured inside the RCC
must be bypassed and the system clock must by 50% duty
cycle). Refer to reference manual.
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled.
Reference Manual to
LL API cross
reference:
CFGR2 CKMODE LL_ADC_SetClock
LL_ADC_GetClock
Function name
__STATIC_INLINE uint32_t LL_ADC_GetClock (ADC_TypeDef
* ADCx)
Function description
Get ADC instance clock source and prescaler.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values: (1)
Asynchronous clock prescaler can be retrieved using function
LL_ADC_GetCommonClock().
LL_ADC_CLOCK_SYNC_PCLK_DIV4
LL_ADC_CLOCK_SYNC_PCLK_DIV2
LL_ADC_CLOCK_SYNC_PCLK_DIV1 (2)
LL_ADC_CLOCK_ASYNC (1)
(2) Caution: This parameter has some clock ratio constraints:
This configuration must be enabled only if PCLK has a 50%
duty clock cycle (APB prescaler configured inside the RCC
must be bypassed and the system clock must by 50% duty
cycle). Refer to reference manual.
Reference Manual to
LL API cross
reference:
CFGR2 CKMODE LL_ADC_GetClock
LL_ADC_SetCalibrationFactor
Function name
__STATIC_INLINE void LL_ADC_SetCalibrationFactor
(ADC_TypeDef * ADCx, uint32_t CalibrationFactor)
Function description
Set ADC calibration factor in the mode single-ended or differential
(for devices with differential mode available).
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Parameters
ADCx: ADC instance
CalibrationFactor: Value between Min_Data=0x00 and
Max_Data=0x7F
Return values
None
Notes
This function is intended to set calibration parameters without
having to perform a new calibration using
LL_ADC_StartCalibration().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be enabled, without calibration on
going, without conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CALFACT CALFACT LL_ADC_SetCalibrationFactor
LL_ADC_GetCalibrationFactor
Function name
__STATIC_INLINE uint32_t LL_ADC_GetCalibrationFactor
(ADC_TypeDef * ADCx)
Function description
Get ADC calibration factor in the mode single-ended or differential
(for devices with differential mode available).
Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x7F
Notes
Calibration factors are set by hardware after performing a
calibration run using function LL_ADC_StartCalibration().
Reference Manual to
LL API cross
reference:
CALFACT CALFACT LL_ADC_GetCalibrationFactor
LL_ADC_SetResolution
Function name
__STATIC_INLINE void LL_ADC_SetResolution
(ADC_TypeDef * ADCx, uint32_t Resolution)
Function description
Set ADC resolution.
Parameters
ADCx: ADC instance
Resolution: This parameter can be one of the following
values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 RES LL_ADC_SetResolution
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LL_ADC_GetResolution
Function name
__STATIC_INLINE uint32_t LL_ADC_GetResolution
(ADC_TypeDef * ADCx)
Function description
Get ADC resolution.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Reference Manual to
LL API cross
reference:
CFGR1 RES LL_ADC_GetResolution
LL_ADC_SetDataAlignment
Function name
__STATIC_INLINE void LL_ADC_SetDataAlignment
(ADC_TypeDef * ADCx, uint32_t DataAlignment)
Function description
Set ADC conversion data alignment.
Parameters
ADCx: ADC instance
DataAlignment: This parameter can be one of the following
values:
LL_ADC_DATA_ALIGN_RIGHT
LL_ADC_DATA_ALIGN_LEFT
Return values
None
Notes
Refer to reference manual for alignments formats
dependencies to ADC resolutions.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 ALIGN LL_ADC_SetDataAlignment
LL_ADC_GetDataAlignment
Function name
__STATIC_INLINE uint32_t LL_ADC_GetDataAlignment
(ADC_TypeDef * ADCx)
Function description
Get ADC conversion data alignment.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_DATA_ALIGN_RIGHT
LL_ADC_DATA_ALIGN_LEFT
Notes
Refer to reference manual for alignments formats
dependencies to ADC resolutions.
Reference Manual to
CFGR1 ALIGN LL_ADC_GetDataAlignment
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LL API cross
reference:
LL_ADC_SetLowPowerMode
Function name
__STATIC_INLINE void LL_ADC_SetLowPowerMode
(ADC_TypeDef * ADCx, uint32_t LowPowerMode)
Function description
Set ADC low power mode.
Parameters
ADCx: ADC instance
LowPowerMode: This parameter can be one of the following
values:
LL_ADC_LP_MODE_NONE
LL_ADC_LP_AUTOWAIT
LL_ADC_LP_AUTOPOWEROFF
LL_ADC_LP_AUTOWAIT_AUTOPOWEROFF
Return values
None
Notes
Description of ADC low power modes: ADC low power mode
"auto wait": Dynamic low power mode, ADC conversions
occurrences are limited to the minimum necessary in order to
reduce power consumption. New ADC conversion starts only
when the previous unitary conversion data (for ADC group
regular) has been retrieved by user software. In the
meantime, ADC remains idle: does not performs any other
conversion. This mode allows to automatically adapt the ADC
conversions triggers to the speed of the software that reads
the data. Moreover, this avoids risk of overrun for low
frequency applications. How to use this low power mode: Do
not use with interruption or DMA since these modes have to
clear immediately the EOC flag to free the IRQ vector
sequencer.Do use with polling: 1. Start conversion, 2. Later
on, when conversion data is needed: poll for end of
conversion to ensure that conversion is completed and
retrieve ADC conversion data. This will trig another ADC
conversion start. ADC low power mode "auto power-off"
(feature available on this device if parameter
LL_ADC_LP_MODE_AUTOOFF is available): the ADC
automatically powers-off after a conversion and automatically
wakes up when a new conversion is triggered (with startup
time between trigger and start of sampling). This feature can
be combined with low power mode "auto wait".
With ADC low power mode "auto wait", the ADC conversion
data read is corresponding to previous ADC conversion start,
independently of delay during which ADC was idle. Therefore,
the ADC conversion data may be outdated: does not
correspond to the current voltage level on the selected ADC
channel.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 WAIT LL_ADC_SetLowPowerMode
CFGR1 AUTOFF LL_ADC_SetLowPowerMode
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LL_ADC_GetLowPowerMode
Function name
__STATIC_INLINE uint32_t LL_ADC_GetLowPowerMode
(ADC_TypeDef * ADCx)
Function description
Get ADC low power mode:
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_LP_MODE_NONE
LL_ADC_LP_AUTOWAIT
LL_ADC_LP_AUTOPOWEROFF
LL_ADC_LP_AUTOWAIT_AUTOPOWEROFF
Notes
Description of ADC low power modes: ADC low power mode
"auto wait": Dynamic low power mode, ADC conversions
occurrences are limited to the minimum necessary in order to
reduce power consumption. New ADC conversion starts only
when the previous unitary conversion data (for ADC group
regular) has been retrieved by user software. In the
meantime, ADC remains idle: does not performs any other
conversion. This mode allows to automatically adapt the ADC
conversions triggers to the speed of the software that reads
the data. Moreover, this avoids risk of overrun for low
frequency applications. How to use this low power mode: Do
not use with interruption or DMA since these modes have to
clear immediately the EOC flag to free the IRQ vector
sequencer.Do use with polling: 1. Start conversion, 2. Later
on, when conversion data is needed: poll for end of
conversion to ensure that conversion is completed and
retrieve ADC conversion data. This will trig another ADC
conversion start. ADC low power mode "auto power-off"
(feature available on this device if parameter
LL_ADC_LP_MODE_AUTOOFF is available): the ADC
automatically powers-off after a conversion and automatically
wakes up when a new conversion is triggered (with startup
time between trigger and start of sampling). This feature can
be combined with low power mode "auto wait".
With ADC low power mode "auto wait", the ADC conversion
data read is corresponding to previous ADC conversion start,
independently of delay during which ADC was idle. Therefore,
the ADC conversion data may be outdated: does not
correspond to the current voltage level on the selected ADC
channel.
Reference Manual to
LL API cross
reference:
CFGR1 WAIT LL_ADC_GetLowPowerMode
CFGR1 AUTOFF LL_ADC_GetLowPowerMode
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LL_ADC_SetSamplingTimeCommonChannels
Function name
__STATIC_INLINE void
LL_ADC_SetSamplingTimeCommonChannels (ADC_TypeDef
* ADCx, uint32_t SamplingTime)
Function description
Set sampling time common to a group of channels.
Parameters
ADCx: ADC instance
SamplingTime: This parameter can be one of the following
values:
LL_ADC_SAMPLINGTIME_1CYCLE_5
LL_ADC_SAMPLINGTIME_3CYCLES_5
LL_ADC_SAMPLINGTIME_7CYCLES_5
LL_ADC_SAMPLINGTIME_12CYCLES_5
LL_ADC_SAMPLINGTIME_19CYCLES_5
LL_ADC_SAMPLINGTIME_39CYCLES_5
LL_ADC_SAMPLINGTIME_79CYCLES_5
LL_ADC_SAMPLINGTIME_160CYCLES_5
Return values
None
Notes
Unit: ADC clock cycles.
On this STM32 serie, sampling time scope is on ADC
instance: Sampling time common to all channels. (on some
other STM32 families, sampling time is channel wise)
In case of internal channel (VrefInt, TempSensor, ...) to be
converted: sampling time constraints must be respected
(sampling time can be adjusted in function of ADC clock
frequency and sampling time setting). Refer to device
datasheet for timings values (parameters TS_vrefint,
TS_temp, ...).
Conversion time is the addition of sampling time and
processing time. On this STM32 serie, ADC processing time
is: 12.5 ADC clock cycles at ADC resolution 12 bits10.5 ADC
clock cycles at ADC resolution 10 bits8.5 ADC clock cycles at
ADC resolution 8 bits6.5 ADC clock cycles at ADC resolution
6 bits
In case of ADC conversion of internal channel (VrefInt,
temperature sensor, ...), a sampling time minimum value is
required. Refer to device datasheet.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
SMPR SMP LL_ADC_SetSamplingTimeCommonChannels
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LL_ADC_GetSamplingTimeCommonChannels
Function name
__STATIC_INLINE uint32_t
LL_ADC_GetSamplingTimeCommonChannels (ADC_TypeDef
* ADCx)
Function description
Get sampling time common to a group of channels.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_SAMPLINGTIME_1CYCLE_5
LL_ADC_SAMPLINGTIME_3CYCLES_5
LL_ADC_SAMPLINGTIME_7CYCLES_5
LL_ADC_SAMPLINGTIME_12CYCLES_5
LL_ADC_SAMPLINGTIME_19CYCLES_5
LL_ADC_SAMPLINGTIME_39CYCLES_5
LL_ADC_SAMPLINGTIME_79CYCLES_5
LL_ADC_SAMPLINGTIME_160CYCLES_5
Notes
Unit: ADC clock cycles.
On this STM32 serie, sampling time scope is on ADC
instance: Sampling time common to all channels. (on some
other STM32 families, sampling time is channel wise)
Conversion time is the addition of sampling time and
processing time. Refer to reference manual for ADC
processing time of this STM32 serie.
Reference Manual to
LL API cross
reference:
SMPR SMP LL_ADC_GetSamplingTimeCommonChannels
LL_ADC_REG_SetTriggerSource
Function name
__STATIC_INLINE void LL_ADC_REG_SetTriggerSource
(ADC_TypeDef * ADCx, uint32_t TriggerSource)
Function description
Set ADC group regular conversion trigger source: internal (SW
start) or from external IP (timer event, external interrupt line).
Parameters
ADCx: ADC instance
TriggerSource: This parameter can be one of the following
values: (*) value not defined in all devices
LL_ADC_REG_TRIG_SOFTWARE
LL_ADC_REG_TRIG_EXT_TIM6_TRGO
LL_ADC_REG_TRIG_EXT_TIM21_CH2
LL_ADC_REG_TRIG_EXT_TIM2_TRGO
LL_ADC_REG_TRIG_EXT_TIM2_CH4
LL_ADC_REG_TRIG_EXT_TIM22_TRGO
LL_ADC_REG_TRIG_EXT_TIM2_CH3 (*)
LL_ADC_REG_TRIG_EXT_TIM3_TRGO
LL_ADC_REG_TRIG_EXT_EXTI_LINE11
Return values
None
Notes
On this STM32 serie, setting trigger source to external trigger
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also set trigger polarity to rising edge (default setting for
compatibility with some ADC on other STM32 families having
this setting set by HW default value). In case of need to
modify trigger edge, use function
LL_ADC_REG_SetTriggerEdge().
Availability of parameters of trigger sources from timer
depends on timers availability on the selected device.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 EXTSEL LL_ADC_REG_SetTriggerSource
CFGR1 EXTEN LL_ADC_REG_SetTriggerSource
LL_ADC_REG_GetTriggerSource
Function name
__STATIC_INLINE uint32_t LL_ADC_REG_GetTriggerSource
(ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion trigger source: internal (SW
start) or from external IP (timer event, external interrupt line).
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values: (*)
value not defined in all devices
LL_ADC_REG_TRIG_SOFTWARE
LL_ADC_REG_TRIG_EXT_TIM6_TRGO
LL_ADC_REG_TRIG_EXT_TIM21_CH2
LL_ADC_REG_TRIG_EXT_TIM2_TRGO
LL_ADC_REG_TRIG_EXT_TIM2_CH4
LL_ADC_REG_TRIG_EXT_TIM22_TRGO
LL_ADC_REG_TRIG_EXT_TIM2_CH3 (*)
LL_ADC_REG_TRIG_EXT_TIM3_TRGO
LL_ADC_REG_TRIG_EXT_EXTI_LINE11
Notes
To determine whether group regular trigger source is internal
(SW start) or external, without detail of which peripheral is
selected as external trigger, (equivalent to
"if(LL_ADC_REG_GetTriggerSource(ADC1) ==
LL_ADC_REG_TRIG_SOFTWARE)") use function
LL_ADC_REG_IsTriggerSourceSWStart.
Availability of parameters of trigger sources from timer
depends on timers availability on the selected device.
Reference Manual to
LL API cross
reference:
CFGR1 EXTSEL LL_ADC_REG_GetTriggerSource
CFGR1 EXTEN LL_ADC_REG_GetTriggerSource
LL_ADC_REG_IsTriggerSourceSWStart
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_IsTriggerSourceSWStart (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular conversion trigger source internal (SW
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start) or external.
Parameters
ADCx: ADC instance
Return values
Value: "0" if trigger source external trigger Value "1" if trigger
source SW start.
Notes
In case of group regular trigger source set to external trigger,
to determine which peripheral is selected as external trigger,
use function LL_ADC_REG_GetTriggerSource().
Reference Manual to
LL API cross
reference:
CFGR1 EXTEN LL_ADC_REG_IsTriggerSourceSWStart
LL_ADC_REG_SetTriggerEdge
Function name
__STATIC_INLINE void LL_ADC_REG_SetTriggerEdge
(ADC_TypeDef * ADCx, uint32_t ExternalTriggerEdge)
Function description
Set ADC group regular conversion trigger polarity.
Parameters
ADCx: ADC instance
ExternalTriggerEdge: This parameter can be one of the
following values:
LL_ADC_REG_TRIG_EXT_RISING
LL_ADC_REG_TRIG_EXT_FALLING
LL_ADC_REG_TRIG_EXT_RISINGFALLING
Return values
None
Notes
Applicable only for trigger source set to external trigger.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 EXTEN LL_ADC_REG_SetTriggerEdge
LL_ADC_REG_GetTriggerEdge
Function name
__STATIC_INLINE uint32_t LL_ADC_REG_GetTriggerEdge
(ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion trigger polarity.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_REG_TRIG_EXT_RISING
LL_ADC_REG_TRIG_EXT_FALLING
LL_ADC_REG_TRIG_EXT_RISINGFALLING
Notes
Applicable only for trigger source set to external trigger.
Reference Manual to
LL API cross
reference:
CFGR1 EXTEN LL_ADC_REG_GetTriggerEdge
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LL_ADC_REG_SetSequencerScanDirection
Function name
__STATIC_INLINE void
LL_ADC_REG_SetSequencerScanDirection (ADC_TypeDef *
ADCx, uint32_t ScanDirection)
Function description
Set ADC group regular sequencer scan direction.
Parameters
ADCx: ADC instance
ScanDirection: This parameter can be one of the following
values:
LL_ADC_REG_SEQ_SCAN_DIR_FORWARD
LL_ADC_REG_SEQ_SCAN_DIR_BACKWARD
Return values
None
Notes
On some other STM32 families, this setting is not available
and the default scan direction is forward.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 SCANDIR
LL_ADC_REG_SetSequencerScanDirection
LL_ADC_REG_GetSequencerScanDirection
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_GetSequencerScanDirection (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular sequencer scan direction.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_REG_SEQ_SCAN_DIR_FORWARD
LL_ADC_REG_SEQ_SCAN_DIR_BACKWARD
Notes
On some other STM32 families, this setting is not available
and the default scan direction is forward.
Reference Manual to
LL API cross
reference:
CFGR1 SCANDIR
LL_ADC_REG_GetSequencerScanDirection
LL_ADC_REG_SetSequencerDiscont
Function name
__STATIC_INLINE void LL_ADC_REG_SetSequencerDiscont
(ADC_TypeDef * ADCx, uint32_t SeqDiscont)
Function description
Set ADC group regular sequencer discontinuous mode: sequence
subdivided and scan conversions interrupted every selected
number of ranks.
Parameters
ADCx: ADC instance
SeqDiscont: This parameter can be one of the following
values:
LL_ADC_REG_SEQ_DISCONT_DISABLE
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LL_ADC_REG_SEQ_DISCONT_1RANK
Return values
None
Notes
It is not possible to enable both ADC group regular
continuous mode and sequencer discontinuous mode.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 DISCEN LL_ADC_REG_SetSequencerDiscont
LL_ADC_REG_GetSequencerDiscont
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_GetSequencerDiscont (ADC_TypeDef * ADCx)
Function description
Get ADC group regular sequencer discontinuous mode: sequence
subdivided and scan conversions interrupted every selected
number of ranks.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_REG_SEQ_DISCONT_DISABLE
LL_ADC_REG_SEQ_DISCONT_1RANK
Reference Manual to
LL API cross
reference:
CFGR1 DISCEN LL_ADC_REG_GetSequencerDiscont
LL_ADC_REG_SetSequencerChannels
Function name
__STATIC_INLINE void LL_ADC_REG_SetSequencerChannels
(ADC_TypeDef * ADCx, uint32_t Channel)
Function description
Set ADC group regular sequence: channel on rank corresponding
to channel number.
Parameters
ADCx: ADC instance
Channel: This parameter can be a combination of the
following values: (1) On STM32L0, parameter not available
on all devices: only on STM32L053xx, STM32L063xx,
STM32L073xx, STM32L083xx.
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
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LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return values
None
Notes
This function performs: Channels ordering into each rank of
scan sequence: rank of each channel is fixed by channel HW
number (channel 0 fixed on rank 0, channel 1 fixed on rank1,
...).Set channels selected by overwriting the current
sequencer configuration.
On this STM32 serie, ADC group regular sequencer is not
fully configurable: sequencer length and each rank affectation
to a channel are fixed by channel HW number.
Depending on devices and packages, some channels may
not be available. Refer to device datasheet for channels
availability.
On this STM32 serie, to measure internal channels (VrefInt,
TempSensor, ...), measurement paths to internal channels
must be enabled separately. This can be done using function
LL_ADC_SetCommonPathInternalCh().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
One or several values can be selected. Example:
(LL_ADC_CHANNEL_4 | LL_ADC_CHANNEL_12 | ...)
Reference Manual to
LL API cross
reference:
CHSELR CHSEL0 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL1 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL2 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL3 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL4 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL5 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL6 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL7 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL8 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL9 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL10 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL11 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL12 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL13 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL14 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL15 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL16 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL17 LL_ADC_REG_SetSequencerChannels
CHSELR CHSEL18 LL_ADC_REG_SetSequencerChannels
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LL_ADC_REG_SetSequencerChAdd
Function name
__STATIC_INLINE void LL_ADC_REG_SetSequencerChAdd
(ADC_TypeDef * ADCx, uint32_t Channel)
Function description
Add channel to ADC group regular sequence: channel on rank
corresponding to channel number.
Parameters
ADCx: ADC instance
Channel: This parameter can be a combination of the
following values: (1) On STM32L0, parameter not available
on all devices: only on STM32L053xx, STM32L063xx,
STM32L073xx, STM32L083xx.
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return values
None
Notes
This function performs: Channels ordering into each rank of
scan sequence: rank of each channel is fixed by channel HW
number (channel 0 fixed on rank 0, channel 1 fixed on rank1,
...).Set channels selected by adding them to the current
sequencer configuration.
On this STM32 serie, ADC group regular sequencer is not
fully configurable: sequencer length and each rank affectation
to a channel are fixed by channel HW number.
Depending on devices and packages, some channels may
not be available. Refer to device datasheet for channels
availability.
On this STM32 serie, to measure internal channels (VrefInt,
TempSensor, ...), measurement paths to internal channels
must be enabled separately. This can be done using function
LL_ADC_SetCommonPathInternalCh().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
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One or several values can be selected. Example:
(LL_ADC_CHANNEL_4 | LL_ADC_CHANNEL_12 | ...)
Reference Manual to
LL API cross
reference:
CHSELR CHSEL0 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL1 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL2 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL3 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL4 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL5 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL6 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL7 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL8 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL9 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL10 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL11 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL12 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL13 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL14 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL15 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL16 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL17 LL_ADC_REG_SetSequencerChAdd
CHSELR CHSEL18 LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
Function name
__STATIC_INLINE void LL_ADC_REG_SetSequencerChRem
(ADC_TypeDef * ADCx, uint32_t Channel)
Function description
Remove channel to ADC group regular sequence: channel on rank
corresponding to channel number.
Parameters
ADCx: ADC instance
Channel: This parameter can be a combination of the
following values: (1) On STM32L0, parameter not available
on all devices: only on STM32L053xx, STM32L063xx,
STM32L073xx, STM32L083xx.
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
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LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return values
None
Notes
This function performs: Channels ordering into each rank of
scan sequence: rank of each channel is fixed by channel HW
number (channel 0 fixed on rank 0, channel 1 fixed on rank1,
...).Set channels selected by removing them to the current
sequencer configuration.
On this STM32 serie, ADC group regular sequencer is not
fully configurable: sequencer length and each rank affectation
to a channel are fixed by channel HW number.
Depending on devices and packages, some channels may
not be available. Refer to device datasheet for channels
availability.
On this STM32 serie, to measure internal channels (VrefInt,
TempSensor, ...), measurement paths to internal channels
must be enabled separately. This can be done using function
LL_ADC_SetCommonPathInternalCh().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
One or several values can be selected. Example:
(LL_ADC_CHANNEL_4 | LL_ADC_CHANNEL_12 | ...)
Reference Manual to
LL API cross
reference:
CHSELR CHSEL0 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL1 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL2 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL3 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL4 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL5 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL6 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL7 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL8 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL9 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL10 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL11 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL12 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL13 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL14 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL15 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL16 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL17 LL_ADC_REG_SetSequencerChRem
CHSELR CHSEL18 LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_GetSequencerChannels
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_GetSequencerChannels (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular sequence: channel on rank corresponding
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to channel number.
Parameters
ADCx: ADC instance
Return values
Returned: value can be a combination of the following
values: (1) On STM32L0, parameter not available on all
devices: only on STM32L053xx, STM32L063xx,
STM32L073xx, STM32L083xx.
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Notes
This function performs: Channels order reading into each rank
of scan sequence: rank of each channel is fixed by channel
HW number (channel 0 fixed on rank 0, channel 1 fixed on
rank1, ...).
On this STM32 serie, ADC group regular sequencer is not
fully configurable: sequencer length and each rank affectation
to a channel are fixed by channel HW number.
Depending on devices and packages, some channels may
not be available. Refer to device datasheet for channels
availability.
On this STM32 serie, to measure internal channels (VrefInt,
TempSensor, ...), measurement paths to internal channels
must be enabled separately. This can be done using function
LL_ADC_SetCommonPathInternalCh().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
One or several values can be retrieved. Example:
(LL_ADC_CHANNEL_4 | LL_ADC_CHANNEL_12 | ...)
Reference Manual to
LL API cross
reference:
CHSELR CHSEL0 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL1 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL2 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL3 LL_ADC_REG_GetSequencerChannels
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CHSELR CHSEL4 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL5 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL6 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL7 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL8 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL9 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL10 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL11 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL12 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL13 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL14 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL15 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL16 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL17 LL_ADC_REG_GetSequencerChannels
CHSELR CHSEL18 LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetContinuousMode
Function name
__STATIC_INLINE void LL_ADC_REG_SetContinuousMode
(ADC_TypeDef * ADCx, uint32_t Continuous)
Function description
Set ADC continuous conversion mode on ADC group regular.
Parameters
ADCx: ADC instance
Continuous: This parameter can be one of the following
values:
LL_ADC_REG_CONV_SINGLE
LL_ADC_REG_CONV_CONTINUOUS
Return values
None
Notes
Description of ADC continuous conversion mode: single
mode: one conversion per triggercontinuous mode: after the
first trigger, following conversions launched successively
automatically.
It is not possible to enable both ADC group regular
continuous mode and sequencer discontinuous mode.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 CONT LL_ADC_REG_SetContinuousMode
LL_ADC_REG_GetContinuousMode
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_GetContinuousMode (ADC_TypeDef * ADCx)
Function description
Get ADC continuous conversion mode on ADC group regular.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_REG_CONV_SINGLE
LL_ADC_REG_CONV_CONTINUOUS
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Notes
Description of ADC continuous conversion mode: single
mode: one conversion per triggercontinuous mode: after the
first trigger, following conversions launched successively
automatically.
Reference Manual to
LL API cross
reference:
CFGR1 CONT LL_ADC_REG_GetContinuousMode
LL_ADC_REG_SetDMATransfer
Function name
__STATIC_INLINE void LL_ADC_REG_SetDMATransfer
(ADC_TypeDef * ADCx, uint32_t DMATransfer)
Function description
Set ADC group regular conversion data transfer: no transfer or
transfer by DMA, and DMA requests mode.
Parameters
ADCx: ADC instance
DMATransfer: This parameter can be one of the following
values:
LL_ADC_REG_DMA_TRANSFER_NONE
LL_ADC_REG_DMA_TRANSFER_LIMITED
LL_ADC_REG_DMA_TRANSFER_UNLIMITED
Return values
None
Notes
If transfer by DMA selected, specifies the DMA requests
mode: Limited mode (One shot mode): DMA transfer requests
are stopped when number of DMA data transfers (number of
ADC conversions) is reached. This ADC mode is intended to
be used with DMA mode non-circular.Unlimited mode: DMA
transfer requests are unlimited, whatever number of DMA
data transfers (number of ADC conversions). This ADC mode
is intended to be used with DMA mode circular.
If ADC DMA requests mode is set to unlimited and DMA is set
to mode non-circular: when DMA transfers size will be
reached, DMA will stop transfers of ADC conversions data
ADC will raise an overrun error (overrun flag and interruption
if enabled).
To configure DMA source address (peripheral address), use
function LL_ADC_DMA_GetRegAddr().
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 DMAEN LL_ADC_REG_SetDMATransfer
CFGR1 DMACFG LL_ADC_REG_SetDMATransfer
LL_ADC_REG_GetDMATransfer
Function name
__STATIC_INLINE uint32_t LL_ADC_REG_GetDMATransfer
(ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion data transfer: no transfer or
transfer by DMA, and DMA requests mode.
Parameters
ADCx: ADC instance
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Return values
Returned: value can be one of the following values:
LL_ADC_REG_DMA_TRANSFER_NONE
LL_ADC_REG_DMA_TRANSFER_LIMITED
LL_ADC_REG_DMA_TRANSFER_UNLIMITED
Notes
If transfer by DMA selected, specifies the DMA requests
mode: Limited mode (One shot mode): DMA transfer requests
are stopped when number of DMA data transfers (number of
ADC conversions) is reached. This ADC mode is intended to
be used with DMA mode non-circular.Unlimited mode: DMA
transfer requests are unlimited, whatever number of DMA
data transfers (number of ADC conversions). This ADC mode
is intended to be used with DMA mode circular.
If ADC DMA requests mode is set to unlimited and DMA is set
to mode non-circular: when DMA transfers size will be
reached, DMA will stop transfers of ADC conversions data
ADC will raise an overrun error (overrun flag and interruption
if enabled).
To configure DMA source address (peripheral address), use
function LL_ADC_DMA_GetRegAddr().
Reference Manual to
LL API cross
reference:
CFGR1 DMAEN LL_ADC_REG_GetDMATransfer
CFGR1 DMACFG LL_ADC_REG_GetDMATransfer
LL_ADC_REG_SetOverrun
Function name
__STATIC_INLINE void LL_ADC_REG_SetOverrun
(ADC_TypeDef * ADCx, uint32_t Overrun)
Function description
Set ADC group regular behavior in case of overrun: data
preserved or overwritten.
Parameters
ADCx: ADC instance
Overrun: This parameter can be one of the following values:
LL_ADC_REG_OVR_DATA_PRESERVED
LL_ADC_REG_OVR_DATA_OVERWRITTEN
Return values
None
Notes
Compatibility with devices without feature overrun: other
devices without this feature have a behavior equivalent to
data overwritten. The default setting of overrun is data
preserved. Therefore, for compatibility with all devices,
parameter overrun should be set to data overwritten.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 OVRMOD LL_ADC_REG_SetOverrun
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LL_ADC_REG_GetOverrun
Function name
__STATIC_INLINE uint32_t LL_ADC_REG_GetOverrun
(ADC_TypeDef * ADCx)
Function description
Get ADC group regular behavior in case of overrun: data
preserved or overwritten.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_REG_OVR_DATA_PRESERVED
LL_ADC_REG_OVR_DATA_OVERWRITTEN
Reference Manual to
LL API cross
reference:
CFGR1 OVRMOD LL_ADC_REG_GetOverrun
LL_ADC_SetAnalogWDMonitChannels
Function name
__STATIC_INLINE void LL_ADC_SetAnalogWDMonitChannels
(ADC_TypeDef * ADCx, uint32_t AWDChannelGroup)
Function description
Set ADC analog watchdog monitored channels: a single channel
or all channels, on ADC group regular.
Parameters
ADCx: ADC instance
AWDChannelGroup: This parameter can be one of the
following values: (1) On STM32L0, parameter not available
on all devices: only on STM32L053xx, STM32L063xx,
STM32L073xx, STM32L083xx.
LL_ADC_AWD_DISABLE
LL_ADC_AWD_ALL_CHANNELS_REG
LL_ADC_AWD_CHANNEL_0_REG
LL_ADC_AWD_CHANNEL_1_REG
LL_ADC_AWD_CHANNEL_2_REG
LL_ADC_AWD_CHANNEL_3_REG
LL_ADC_AWD_CHANNEL_4_REG
LL_ADC_AWD_CHANNEL_5_REG
LL_ADC_AWD_CHANNEL_6_REG
LL_ADC_AWD_CHANNEL_7_REG
LL_ADC_AWD_CHANNEL_8_REG
LL_ADC_AWD_CHANNEL_9_REG
LL_ADC_AWD_CHANNEL_10_REG
LL_ADC_AWD_CHANNEL_11_REG
LL_ADC_AWD_CHANNEL_12_REG
LL_ADC_AWD_CHANNEL_13_REG
LL_ADC_AWD_CHANNEL_14_REG
LL_ADC_AWD_CHANNEL_15_REG
LL_ADC_AWD_CHANNEL_16_REG (1)
LL_ADC_AWD_CHANNEL_17_REG
LL_ADC_AWD_CHANNEL_18_REG
LL_ADC_AWD_CH_VREFINT_REG
LL_ADC_AWD_CH_TEMPSENSOR_REG
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LL_ADC_AWD_CH_VLCD_REG (1)
Return values
None
Notes
Once monitored channels are selected, analog watchdog is
enabled.
In case of need to define a single channel to monitor with
analog watchdog from sequencer channel definition, use
helper macro
__LL_ADC_ANALOGWD_CHANNEL_GROUP().
On this STM32 serie, there is only 1 kind of analog watchdog
instance: AWD standard (instance AWD1): channels
monitored: can monitor 1 channel or all channels.groups
monitored: ADC group regular.resolution: resolution is not
limited (corresponds to ADC resolution configured).
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 AWDCH LL_ADC_SetAnalogWDMonitChannels
CFGR1 AWDSGL LL_ADC_SetAnalogWDMonitChannels
CFGR1 AWDEN LL_ADC_SetAnalogWDMonitChannels
LL_ADC_GetAnalogWDMonitChannels
Function name
__STATIC_INLINE uint32_t
LL_ADC_GetAnalogWDMonitChannels (ADC_TypeDef *
ADCx)
Function description
Get ADC analog watchdog monitored channel.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_AWD_DISABLE
LL_ADC_AWD_ALL_CHANNELS_REG
LL_ADC_AWD_CHANNEL_0_REG
LL_ADC_AWD_CHANNEL_1_REG
LL_ADC_AWD_CHANNEL_2_REG
LL_ADC_AWD_CHANNEL_3_REG
LL_ADC_AWD_CHANNEL_4_REG
LL_ADC_AWD_CHANNEL_5_REG
LL_ADC_AWD_CHANNEL_6_REG
LL_ADC_AWD_CHANNEL_7_REG
LL_ADC_AWD_CHANNEL_8_REG
LL_ADC_AWD_CHANNEL_9_REG
LL_ADC_AWD_CHANNEL_10_REG
LL_ADC_AWD_CHANNEL_11_REG
LL_ADC_AWD_CHANNEL_12_REG
LL_ADC_AWD_CHANNEL_13_REG
LL_ADC_AWD_CHANNEL_14_REG
LL_ADC_AWD_CHANNEL_15_REG
LL_ADC_AWD_CHANNEL_16_REG
LL_ADC_AWD_CHANNEL_17_REG
LL_ADC_AWD_CHANNEL_18_REG
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Notes
Usage of the returned channel number: To reinject this
channel into another function LL_ADC_xxx: the returned
channel number is only partly formatted on definition of literals
LL_ADC_CHANNEL_x. Therefore, it has to be compared with
parts of literals LL_ADC_CHANNEL_x or using helper macro
__LL_ADC_CHANNEL_TO_DECIMAL_NB(). Then the
selected literal LL_ADC_CHANNEL_x can be used as
parameter for another function.To get the channel number in
decimal format: process the returned value with the helper
macro __LL_ADC_CHANNEL_TO_DECIMAL_NB().
Applicable only when the analog watchdog is set to monitor
one channel.
On this STM32 serie, there is only 1 kind of analog watchdog
instance: AWD standard (instance AWD1): channels
monitored: can monitor 1 channel or all channels.groups
monitored: ADC group regular.resolution: resolution is not
limited (corresponds to ADC resolution configured).
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR1 AWDCH LL_ADC_GetAnalogWDMonitChannels
CFGR1 AWDSGL LL_ADC_GetAnalogWDMonitChannels
CFGR1 AWDEN LL_ADC_GetAnalogWDMonitChannels
LL_ADC_ConfigAnalogWDThresholds
Function name
__STATIC_INLINE void LL_ADC_ConfigAnalogWDThresholds
(ADC_TypeDef * ADCx, uint32_t AWDThresholdHighValue,
uint32_t AWDThresholdLowValue)
Function description
Set ADC analog watchdog thresholds value of both thresholds
high and low.
Parameters
ADCx: ADC instance
AWDThresholdHighValue: Value between
Min_Data=0x000 and Max_Data=0xFFF
AWDThresholdLowValue: Value between Min_Data=0x000
and Max_Data=0xFFF
Return values
None
Notes
If value of only one threshold high or low must be set, use
function LL_ADC_SetAnalogWDThresholds().
In case of ADC resolution different of 12 bits, analog
watchdog thresholds data require a specific shift. Use helper
macro
__LL_ADC_ANALOGWD_SET_THRESHOLD_RESOLUTIO
N().
On this STM32 serie, there is only 1 kind of analog watchdog
instance: AWD standard (instance AWD1): channels
monitored: can monitor 1 channel or all channels.groups
monitored: ADC group regular.resolution: resolution is not
limited (corresponds to ADC resolution configured).
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
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conversion on going on group regular.
Reference Manual to
LL API cross
reference:
TR HT LL_ADC_ConfigAnalogWDThresholds
TR LT LL_ADC_ConfigAnalogWDThresholds
LL_ADC_SetAnalogWDThresholds
Function name
__STATIC_INLINE void LL_ADC_SetAnalogWDThresholds
(ADC_TypeDef * ADCx, uint32_t AWDThresholdsHighLow,
uint32_t AWDThresholdValue)
Function description
Set ADC analog watchdog threshold value of threshold high or
low.
Parameters
ADCx: ADC instance
AWDThresholdsHighLow: This parameter can be one of
the following values:
LL_ADC_AWD_THRESHOLD_HIGH
LL_ADC_AWD_THRESHOLD_LOW
AWDThresholdValue: Value between Min_Data=0x000 and
Max_Data=0xFFF
Return values
None
Notes
If values of both thresholds high or low must be set, use
function LL_ADC_ConfigAnalogWDThresholds().
In case of ADC resolution different of 12 bits, analog
watchdog thresholds data require a specific shift. Use helper
macro
__LL_ADC_ANALOGWD_SET_THRESHOLD_RESOLUTIO
N().
On this STM32 serie, there is only 1 kind of analog watchdog
instance: AWD standard (instance AWD1): channels
monitored: can monitor 1 channel or all channels.groups
monitored: ADC group regular.resolution: resolution is not
limited (corresponds to ADC resolution configured).
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
TR HT LL_ADC_SetAnalogWDThresholds
TR LT LL_ADC_SetAnalogWDThresholds
LL_ADC_GetAnalogWDThresholds
Function name
__STATIC_INLINE uint32_t LL_ADC_GetAnalogWDThresholds
(ADC_TypeDef * ADCx, uint32_t AWDThresholdsHighLow)
Function description
Get ADC analog watchdog threshold value of threshold high,
threshold low or raw data with ADC thresholds high and low
concatenated.
Parameters
ADCx: ADC instance
AWDThresholdsHighLow: This parameter can be one of
the following values:
LL_ADC_AWD_THRESHOLD_HIGH
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LL_ADC_AWD_THRESHOLD_LOW
LL_ADC_AWD_THRESHOLDS_HIGH_LOW
Return values
Value: between Min_Data=0x000 and Max_Data=0xFFF
Notes
If raw data with ADC thresholds high and low is retrieved, the
data of each threshold high or low can be isolated using
helper macro:
__LL_ADC_ANALOGWD_THRESHOLDS_HIGH_LOW().
In case of ADC resolution different of 12 bits, analog
watchdog thresholds data require a specific shift. Use helper
macro
__LL_ADC_ANALOGWD_GET_THRESHOLD_RESOLUTIO
N().
Reference Manual to
LL API cross
reference:
TR HT LL_ADC_GetAnalogWDThresholds
TR LT LL_ADC_GetAnalogWDThresholds
LL_ADC_SetOverSamplingScope
Function name
__STATIC_INLINE void LL_ADC_SetOverSamplingScope
(ADC_TypeDef * ADCx, uint32_t OvsScope)
Function description
Set ADC oversampling scope.
Parameters
ADCx: ADC instance
OvsScope: This parameter can be one of the following
values:
LL_ADC_OVS_DISABLE
LL_ADC_OVS_GRP_REGULAR_CONTINUED
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR2 OVSE LL_ADC_SetOverSamplingScope
LL_ADC_GetOverSamplingScope
Function name
__STATIC_INLINE uint32_t LL_ADC_GetOverSamplingScope
(ADC_TypeDef * ADCx)
Function description
Get ADC oversampling scope.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_OVS_DISABLE
LL_ADC_OVS_GRP_REGULAR_CONTINUED
Reference Manual to
LL API cross
reference:
CFGR2 OVSE LL_ADC_GetOverSamplingScope
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LL_ADC_SetOverSamplingDiscont
Function name
__STATIC_INLINE void LL_ADC_SetOverSamplingDiscont
(ADC_TypeDef * ADCx, uint32_t OverSamplingDiscont)
Function description
Set ADC oversampling discontinuous mode (triggered mode) on
the selected ADC group.
Parameters
ADCx: ADC instance
OverSamplingDiscont: This parameter can be one of the
following values:
LL_ADC_OVS_REG_CONT
LL_ADC_OVS_REG_DISCONT
Return values
None
Notes
Number of oversampled conversions are done either in:
continuous mode (all conversions of oversampling ratio are
done from 1 trigger)discontinuous mode (each conversion of
oversampling ratio needs a trigger)
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR2 TOVS LL_ADC_SetOverSamplingDiscont
LL_ADC_GetOverSamplingDiscont
Function name
__STATIC_INLINE uint32_t LL_ADC_GetOverSamplingDiscont
(ADC_TypeDef * ADCx)
Function description
Get ADC oversampling discontinuous mode (triggered mode) on
the selected ADC group.
Parameters
ADCx: ADC instance
Return values
Returned: value can be one of the following values:
LL_ADC_OVS_REG_CONT
LL_ADC_OVS_REG_DISCONT
Notes
Number of oversampled conversions are done either in:
continuous mode (all conversions of oversampling ratio are
done from 1 trigger)discontinuous mode (each conversion of
oversampling ratio needs a trigger)
Reference Manual to
LL API cross
reference:
CFGR2 TOVS LL_ADC_GetOverSamplingDiscont
LL_ADC_ConfigOverSamplingRatioShift
Function name
__STATIC_INLINE void
LL_ADC_ConfigOverSamplingRatioShift (ADC_TypeDef *
ADCx, uint32_t Ratio, uint32_t Shift)
Function description
Set ADC oversampling.
Parameters
ADCx: ADC instance
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Ratio: This parameter can be one of the following values:
LL_ADC_OVS_RATIO_2
LL_ADC_OVS_RATIO_4
LL_ADC_OVS_RATIO_8
LL_ADC_OVS_RATIO_16
LL_ADC_OVS_RATIO_32
LL_ADC_OVS_RATIO_64
LL_ADC_OVS_RATIO_128
LL_ADC_OVS_RATIO_256
Shift: This parameter can be one of the following values:
LL_ADC_OVS_SHIFT_NONE
LL_ADC_OVS_SHIFT_RIGHT_1
LL_ADC_OVS_SHIFT_RIGHT_2
LL_ADC_OVS_SHIFT_RIGHT_3
LL_ADC_OVS_SHIFT_RIGHT_4
LL_ADC_OVS_SHIFT_RIGHT_5
LL_ADC_OVS_SHIFT_RIGHT_6
LL_ADC_OVS_SHIFT_RIGHT_7
LL_ADC_OVS_SHIFT_RIGHT_8
Return values
None
Notes
This function set the 2 items of oversampling configuration:
ratioshift
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be disabled or enabled without
conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CFGR2 OVSS LL_ADC_ConfigOverSamplingRatioShift
CFGR2 OVSR LL_ADC_ConfigOverSamplingRatioShift
LL_ADC_GetOverSamplingRatio
Function name
__STATIC_INLINE uint32_t LL_ADC_GetOverSamplingRatio
(ADC_TypeDef * ADCx)
Function description
Get ADC oversampling ratio.
Parameters
ADCx: ADC instance
Return values
Ratio: This parameter can be one of the following values:
LL_ADC_OVS_RATIO_2
LL_ADC_OVS_RATIO_4
LL_ADC_OVS_RATIO_8
LL_ADC_OVS_RATIO_16
LL_ADC_OVS_RATIO_32
LL_ADC_OVS_RATIO_64
LL_ADC_OVS_RATIO_128
LL_ADC_OVS_RATIO_256
Reference Manual to
LL API cross
reference:
CFGR2 OVSR LL_ADC_GetOverSamplingRatio
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LL_ADC_GetOverSamplingShift
Function name
__STATIC_INLINE uint32_t LL_ADC_GetOverSamplingShift
(ADC_TypeDef * ADCx)
Function description
Get ADC oversampling shift.
Parameters
ADCx: ADC instance
Return values
Shift: This parameter can be one of the following values:
LL_ADC_OVS_SHIFT_NONE
LL_ADC_OVS_SHIFT_RIGHT_1
LL_ADC_OVS_SHIFT_RIGHT_2
LL_ADC_OVS_SHIFT_RIGHT_3
LL_ADC_OVS_SHIFT_RIGHT_4
LL_ADC_OVS_SHIFT_RIGHT_5
LL_ADC_OVS_SHIFT_RIGHT_6
LL_ADC_OVS_SHIFT_RIGHT_7
LL_ADC_OVS_SHIFT_RIGHT_8
Reference Manual to
LL API cross
reference:
CFGR2 OVSS LL_ADC_GetOverSamplingShift
LL_ADC_EnableInternalRegulator
Function name
__STATIC_INLINE void LL_ADC_EnableInternalRegulator
(ADC_TypeDef * ADCx)
Function description
Enable ADC instance internal voltage regulator.
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, there are three possibilities to enable
the voltage regulator: by enabling it manually using function
LL_ADC_EnableInternalRegulator().by launching a calibration
using function LL_ADC_StartCalibration().by enabling the
ADC using function LL_ADC_Enable().
On this STM32 serie, after ADC internal voltage regulator
enable, a delay for ADC internal voltage regulator stabilization
is required before performing a ADC calibration or ADC
enable. Refer to device datasheet, parameter "tUP_LDO".
Refer to literal
LL_ADC_DELAY_INTERNAL_REGUL_STAB_US.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be ADC disabled.
Reference Manual to
LL API cross
reference:
CR ADVREGEN LL_ADC_EnableInternalRegulator
LL_ADC_DisableInternalRegulator
Function name
__STATIC_INLINE void LL_ADC_DisableInternalRegulator
(ADC_TypeDef * ADCx)
Function description
Disable ADC internal voltage regulator.
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Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be ADC disabled.
Reference Manual to
LL API cross
reference:
CR ADVREGEN LL_ADC_DisableInternalRegulator
LL_ADC_IsInternalRegulatorEnabled
Function name
__STATIC_INLINE uint32_t
LL_ADC_IsInternalRegulatorEnabled (ADC_TypeDef * ADCx)
Function description
Get the selected ADC instance internal voltage regulator state.
Parameters
ADCx: ADC instance
Return values
0: internal regulator is disabled, 1: internal regulator is
enabled.
Reference Manual to
LL API cross
reference:
CR ADVREGEN LL_ADC_IsInternalRegulatorEnabled
LL_ADC_Enable
Function name
__STATIC_INLINE void LL_ADC_Enable (ADC_TypeDef *
ADCx)
Function description
Enable the selected ADC instance.
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, after ADC enable, a delay for ADC
internal analog stabilization is required before performing a
ADC conversion start. Refer to device datasheet, parameter
tSTAB.
On this STM32 serie, flag LL_ADC_FLAG_ADRDY is raised
when the ADC is enabled and when conversion clock is
active. (not only core clock: this ADC has a dual clock
domain)
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be ADC disabled and ADC internal
voltage regulator enabled.
Reference Manual to
LL API cross
reference:
CR ADEN LL_ADC_Enable
LL_ADC_Disable
Function name
__STATIC_INLINE void LL_ADC_Disable (ADC_TypeDef *
ADCx)
Function description
Disable the selected ADC instance.
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Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be not disabled. Must be enabled
without conversion on going on group regular.
Reference Manual to
LL API cross
reference:
CR ADDIS LL_ADC_Disable
LL_ADC_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabled (ADC_TypeDef
* ADCx)
Function description
Get the selected ADC instance enable state.
Parameters
ADCx: ADC instance
Return values
0: ADC is disabled, 1: ADC is enabled.
Notes
On this STM32 serie, flag LL_ADC_FLAG_ADRDY is raised
when the ADC is enabled and when conversion clock is
active. (not only core clock: this ADC has a dual clock
domain)
Reference Manual to
LL API cross
reference:
CR ADEN LL_ADC_IsEnabled
LL_ADC_IsDisableOngoing
Function name
__STATIC_INLINE uint32_t LL_ADC_IsDisableOngoing
(ADC_TypeDef * ADCx)
Function description
Get the selected ADC instance disable state.
Parameters
ADCx: ADC instance
Return values
0: no ADC disable command on going.
Reference Manual to
LL API cross
reference:
CR ADDIS LL_ADC_IsDisableOngoing
LL_ADC_StartCalibration
Function name
__STATIC_INLINE void LL_ADC_StartCalibration
(ADC_TypeDef * ADCx)
Function description
Start ADC calibration in the mode single-ended or differential (for
devices with differential mode available).
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, a minimum number of ADC clock cycles
are required between ADC end of calibration and ADC
enable. Refer to literal
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LL_ADC_DELAY_CALIB_ENABLE_ADC_CYCLES.
In case of usage of ADC with DMA transfer: On this STM32
serie, ADC DMA transfer request should be disabled during
calibration: Calibration factor is available in data register and
also transfered by DMA. To not insert ADC calibration factor
among ADC conversion data in array variable, DMA transfer
must be disabled during calibration. (DMA transfer setting
backup and disable before calibration, DMA transfer setting
restore after calibration. Refer to functions
LL_ADC_REG_GetDMATransfer(),
LL_ADC_REG_SetDMATransfer() ).
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be ADC disabled.
Reference Manual to
LL API cross
reference:
CR ADCAL LL_ADC_StartCalibration
LL_ADC_IsCalibrationOnGoing
Function name
__STATIC_INLINE uint32_t LL_ADC_IsCalibrationOnGoing
(ADC_TypeDef * ADCx)
Function description
Get ADC calibration state.
Parameters
ADCx: ADC instance
Return values
0: calibration complete, 1: calibration in progress.
Reference Manual to
LL API cross
reference:
CR ADCAL LL_ADC_IsCalibrationOnGoing
LL_ADC_REG_StartConversion
Function name
__STATIC_INLINE void LL_ADC_REG_StartConversion
(ADC_TypeDef * ADCx)
Function description
Start ADC group regular conversion.
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, this function is relevant for both internal
trigger (SW start) and external trigger: If ADC trigger has
been set to software start, ADC conversion starts
immediately.If ADC trigger has been set to external trigger,
ADC conversion will start at next trigger event (on the
selected trigger edge) following the ADC start conversion
command.
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be enabled without conversion on
going on group regular, without conversion stop command on
going on group regular, without ADC disable command on
going.
Reference Manual to
LL API cross
CR ADSTART LL_ADC_REG_StartConversion
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LL_ADC_REG_StopConversion
Function name
__STATIC_INLINE void LL_ADC_REG_StopConversion
(ADC_TypeDef * ADCx)
Function description
Stop ADC group regular conversion.
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, setting of this feature is conditioned to
ADC state: ADC must be enabled with conversion on going
on group regular, without ADC disable command on going.
Reference Manual to
LL API cross
reference:
CR ADSTP LL_ADC_REG_StopConversion
LL_ADC_REG_IsConversionOngoing
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_IsConversionOngoing (ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion state.
Parameters
ADCx: ADC instance
Return values
0: no conversion is on going on ADC group regular.
Reference Manual to
LL API cross
reference:
CR ADSTART LL_ADC_REG_IsConversionOngoing
LL_ADC_REG_IsStopConversionOngoing
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_IsStopConversionOngoing (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular command of conversion stop state.
Parameters
ADCx: ADC instance
Return values
0: no command of conversion stop is on going on ADC group
regular.
Reference Manual to
LL API cross
reference:
CR ADSTP LL_ADC_REG_IsStopConversionOngoing
LL_ADC_REG_ReadConversionData32
Function name
__STATIC_INLINE uint32_t
LL_ADC_REG_ReadConversionData32 (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular conversion data, range fit for all ADC
configurations: all ADC resolutions and all oversampling increased
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data width (for devices with feature oversampling).
Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x00000000 and
Max_Data=0xFFFFFFFF
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_REG_ReadConversionData32
LL_ADC_REG_ReadConversionData12
Function name
__STATIC_INLINE uint16_t
LL_ADC_REG_ReadConversionData12 (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular conversion data, range fit for ADC
resolution 12 bits.
Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x000 and Max_Data=0xFFF
Notes
For devices with feature oversampling: Oversampling can
increase data width, function for extended range may be
needed: LL_ADC_REG_ReadConversionData32.
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_REG_ReadConversionData12
LL_ADC_REG_ReadConversionData10
Function name
__STATIC_INLINE uint16_t
LL_ADC_REG_ReadConversionData10 (ADC_TypeDef *
ADCx)
Function description
Get ADC group regular conversion data, range fit for ADC
resolution 10 bits.
Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x000 and Max_Data=0x3FF
Notes
For devices with feature oversampling: Oversampling can
increase data width, function for extended range may be
needed: LL_ADC_REG_ReadConversionData32.
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_REG_ReadConversionData10
LL_ADC_REG_ReadConversionData8
Function name
__STATIC_INLINE uint8_t
LL_ADC_REG_ReadConversionData8 (ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion data, range fit for ADC
resolution 8 bits.
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Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Notes
For devices with feature oversampling: Oversampling can
increase data width, function for extended range may be
needed: LL_ADC_REG_ReadConversionData32.
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_REG_ReadConversionData8
LL_ADC_REG_ReadConversionData6
Function name
__STATIC_INLINE uint8_t
LL_ADC_REG_ReadConversionData6 (ADC_TypeDef * ADCx)
Function description
Get ADC group regular conversion data, range fit for ADC
resolution 6 bits.
Parameters
ADCx: ADC instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x3F
Notes
For devices with feature oversampling: Oversampling can
increase data width, function for extended range may be
needed: LL_ADC_REG_ReadConversionData32.
Reference Manual to
LL API cross
reference:
DR DATA LL_ADC_REG_ReadConversionData6
LL_ADC_IsActiveFlag_ADRDY
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_ADRDY
(ADC_TypeDef * ADCx)
Function description
Get flag ADC ready.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Notes
On this STM32 serie, flag LL_ADC_FLAG_ADRDY is raised
when the ADC is enabled and when conversion clock is
active. (not only core clock: this ADC has a dual clock
domain)
Reference Manual to
LL API cross
reference:
ISR ADRDY LL_ADC_IsActiveFlag_ADRDY
LL_ADC_IsActiveFlag_EOC
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_EOC
(ADC_TypeDef * ADCx)
Function description
Get flag ADC group regular end of unitary conversion.
Parameters
ADCx: ADC instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR EOC LL_ADC_IsActiveFlag_EOC
LL_ADC_IsActiveFlag_EOS
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_EOS
(ADC_TypeDef * ADCx)
Function description
Get flag ADC group regular end of sequence conversions.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR EOSEQ LL_ADC_IsActiveFlag_EOS
LL_ADC_IsActiveFlag_OVR
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_OVR
(ADC_TypeDef * ADCx)
Function description
Get flag ADC group regular overrun.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR OVR LL_ADC_IsActiveFlag_OVR
LL_ADC_IsActiveFlag_EOSMP
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_EOSMP
(ADC_TypeDef * ADCx)
Function description
Get flag ADC group regular end of sampling phase.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR EOSMP LL_ADC_IsActiveFlag_EOSMP
LL_ADC_IsActiveFlag_AWD1
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_AWD1
(ADC_TypeDef * ADCx)
Function description
Get flag ADC analog watchdog 1 flag.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
ISR AWD LL_ADC_IsActiveFlag_AWD1
LL_ADC_IsActiveFlag_EOCAL
Function name
__STATIC_INLINE uint32_t LL_ADC_IsActiveFlag_EOCAL
(ADC_TypeDef * ADCx)
Function description
Get flag ADC end of calibration.
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR EOCAL LL_ADC_IsActiveFlag_EOCAL
LL_ADC_ClearFlag_ADRDY
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_ADRDY
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC ready.
Parameters
ADCx: ADC instance
Return values
None
Notes
On this STM32 serie, flag LL_ADC_FLAG_ADRDY is raised
when the ADC is enabled and when conversion clock is
active. (not only core clock: this ADC has a dual clock
domain)
Reference Manual to
LL API cross
reference:
ISR ADRDY LL_ADC_ClearFlag_ADRDY
LL_ADC_ClearFlag_EOC
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_EOC
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC group regular end of unitary conversion.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR EOC LL_ADC_ClearFlag_EOC
LL_ADC_ClearFlag_EOS
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_EOS
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC group regular end of sequence conversions.
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Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR EOSEQ LL_ADC_ClearFlag_EOS
LL_ADC_ClearFlag_OVR
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_OVR
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC group regular overrun.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR OVR LL_ADC_ClearFlag_OVR
LL_ADC_ClearFlag_EOSMP
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_EOSMP
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC group regular end of sampling phase.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR EOSMP LL_ADC_ClearFlag_EOSMP
LL_ADC_ClearFlag_AWD1
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_AWD1
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC analog watchdog 1.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR AWD LL_ADC_ClearFlag_AWD1
LL_ADC_ClearFlag_EOCAL
Function name
__STATIC_INLINE void LL_ADC_ClearFlag_EOCAL
(ADC_TypeDef * ADCx)
Function description
Clear flag ADC end of calibration.
Parameters
ADCx: ADC instance
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Return values
None
Reference Manual to
LL API cross
reference:
ISR EOCAL LL_ADC_ClearFlag_EOCAL
LL_ADC_EnableIT_ADRDY
Function name
__STATIC_INLINE void LL_ADC_EnableIT_ADRDY
(ADC_TypeDef * ADCx)
Function description
Enable ADC ready.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER ADRDYIE LL_ADC_EnableIT_ADRDY
LL_ADC_EnableIT_EOC
Function name
__STATIC_INLINE void LL_ADC_EnableIT_EOC
(ADC_TypeDef * ADCx)
Function description
Enable interruption ADC group regular end of unitary conversion.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOCIE LL_ADC_EnableIT_EOC
LL_ADC_EnableIT_EOS
Function name
__STATIC_INLINE void LL_ADC_EnableIT_EOS
(ADC_TypeDef * ADCx)
Function description
Enable interruption ADC group regular end of sequence
conversions.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOSEQIE LL_ADC_EnableIT_EOS
LL_ADC_EnableIT_OVR
Function name
__STATIC_INLINE void LL_ADC_EnableIT_OVR
(ADC_TypeDef * ADCx)
Function description
Enable ADC group regular interruption overrun.
Parameters
ADCx: ADC instance
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Return values
None
Reference Manual to
LL API cross
reference:
IER OVRIE LL_ADC_EnableIT_OVR
LL_ADC_EnableIT_EOSMP
Function name
__STATIC_INLINE void LL_ADC_EnableIT_EOSMP
(ADC_TypeDef * ADCx)
Function description
Enable interruption ADC group regular end of sampling.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOSMPIE LL_ADC_EnableIT_EOSMP
LL_ADC_EnableIT_AWD1
Function name
__STATIC_INLINE void LL_ADC_EnableIT_AWD1
(ADC_TypeDef * ADCx)
Function description
Enable interruption ADC analog watchdog 1.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER AWDIE LL_ADC_EnableIT_AWD1
LL_ADC_EnableIT_EOCAL
Function name
__STATIC_INLINE void LL_ADC_EnableIT_EOCAL
(ADC_TypeDef * ADCx)
Function description
Enable interruption ADC end of calibration.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOCALIE LL_ADC_EnableIT_EOCAL
LL_ADC_DisableIT_ADRDY
Function name
__STATIC_INLINE void LL_ADC_DisableIT_ADRDY
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC ready.
Parameters
ADCx: ADC instance
Return values
None
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Reference Manual to
LL API cross
reference:
IER ADRDYIE LL_ADC_DisableIT_ADRDY
LL_ADC_DisableIT_EOC
Function name
__STATIC_INLINE void LL_ADC_DisableIT_EOC
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC group regular end of unitary conversion.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOCIE LL_ADC_DisableIT_EOC
LL_ADC_DisableIT_EOS
Function name
__STATIC_INLINE void LL_ADC_DisableIT_EOS
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC group regular end of sequence
conversions.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOSEQIE LL_ADC_DisableIT_EOS
LL_ADC_DisableIT_OVR
Function name
__STATIC_INLINE void LL_ADC_DisableIT_OVR
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC group regular overrun.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER OVRIE LL_ADC_DisableIT_OVR
LL_ADC_DisableIT_EOSMP
Function name
__STATIC_INLINE void LL_ADC_DisableIT_EOSMP
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC group regular end of sampling.
Parameters
ADCx: ADC instance
Return values
None
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Reference Manual to
LL API cross
reference:
IER EOSMPIE LL_ADC_DisableIT_EOSMP
LL_ADC_DisableIT_AWD1
Function name
__STATIC_INLINE void LL_ADC_DisableIT_AWD1
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC analog watchdog 1.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER AWDIE LL_ADC_DisableIT_AWD1
LL_ADC_DisableIT_EOCAL
Function name
__STATIC_INLINE void LL_ADC_DisableIT_EOCAL
(ADC_TypeDef * ADCx)
Function description
Disable interruption ADC end of calibration.
Parameters
ADCx: ADC instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EOCALIE LL_ADC_DisableIT_EOCAL
LL_ADC_IsEnabledIT_ADRDY
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_ADRDY
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC ready (0: interrupt disabled, 1:
interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER ADRDYIE LL_ADC_IsEnabledIT_ADRDY
LL_ADC_IsEnabledIT_EOC
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_EOC
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC group regular end of unitary
conversion (0: interrupt disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
IER EOCIE LL_ADC_IsEnabledIT_EOC
LL_ADC_IsEnabledIT_EOS
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_EOS
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC group regular end of sequence
conversions (0: interrupt disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER EOSEQIE LL_ADC_IsEnabledIT_EOS
LL_ADC_IsEnabledIT_OVR
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_OVR
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC group regular overrun (0: interrupt
disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER OVRIE LL_ADC_IsEnabledIT_OVR
LL_ADC_IsEnabledIT_EOSMP
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_EOSMP
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC group regular end of sampling (0:
interrupt disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER EOSMPIE LL_ADC_IsEnabledIT_EOSMP
LL_ADC_IsEnabledIT_AWD1
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_AWD1
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC analog watchdog 1 (0: interrupt
disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER AWDIE LL_ADC_IsEnabledIT_AWD1
LL_ADC_IsEnabledIT_EOCAL
Function name
__STATIC_INLINE uint32_t LL_ADC_IsEnabledIT_EOCAL
(ADC_TypeDef * ADCx)
Function description
Get state of interruption ADC end of calibration (0: interrupt
disabled, 1: interrupt enabled).
Parameters
ADCx: ADC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER EOCALIE LL_ADC_IsEnabledIT_EOCAL
LL_ADC_CommonDeInit
Function name
ErrorStatus LL_ADC_CommonDeInit (ADC_Common_TypeDef
* ADCxy_COMMON)
Function description
De-initialize registers of all ADC instances belonging to the same
ADC common instance to their default reset values.
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
Return values
An: ErrorStatus enumeration value:
SUCCESS: ADC common registers are de-initialized
ERROR: not applicable
Notes
This function is performing a hard reset, using high level clock
source RCC ADC reset.
LL_ADC_CommonInit
Function name
ErrorStatus LL_ADC_CommonInit (ADC_Common_TypeDef *
ADCxy_COMMON, LL_ADC_CommonInitTypeDef *
ADC_CommonInitStruct)
Function description
Initialize some features of ADC common parameters (all ADC
instances belonging to the same ADC common instance) and
multimode (for devices with several ADC instances available).
Parameters
ADCxy_COMMON: ADC common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_ADC_COMMON_INSTANCE() )
ADC_CommonInitStruct: Pointer to a
LL_ADC_CommonInitTypeDef structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: ADC common registers are initialized
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ERROR: ADC common registers are not initialized
Notes
The setting of ADC common parameters is conditioned to
ADC instances state: All ADC instances belonging to the
same ADC common instance must be disabled.
LL_ADC_CommonStructInit
Function name
void LL_ADC_CommonStructInit
(LL_ADC_CommonInitTypeDef * ADC_CommonInitStruct)
Function description
Set each LL_ADC_CommonInitTypeDef field to default value.
Parameters
ADC_CommonInitStruct: Pointer to a
LL_ADC_CommonInitTypeDef structure whose fields will be
set to default values.
Return values
None
LL_ADC_DeInit
Function name
ErrorStatus LL_ADC_DeInit (ADC_TypeDef * ADCx)
Function description
De-initialize registers of the selected ADC instance to their default
reset values.
Parameters
ADCx: ADC instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: ADC registers are de-initialized
ERROR: ADC registers are not de-initialized
Notes
To reset all ADC instances quickly (perform a hard reset), use
function LL_ADC_CommonDeInit().
If this functions returns error status, it means that ADC
instance is in an unknown state. In this case, perform a hard
reset using high level clock source RCC ADC reset. Refer to
function LL_ADC_CommonDeInit().
LL_ADC_Init
Function name
ErrorStatus LL_ADC_Init (ADC_TypeDef * ADCx,
LL_ADC_InitTypeDef * ADC_InitStruct)
Function description
Initialize some features of ADC instance.
Parameters
ADCx: ADC instance
ADC_InitStruct: Pointer to a LL_ADC_REG_InitTypeDef
structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: ADC registers are initialized
ERROR: ADC registers are not initialized
Notes
These parameters have an impact on ADC scope: ADC
instance. Refer to corresponding unitary functions into
Configuration of ADC hierarchical scope: ADC instance .
The setting of these parameters by function LL_ADC_Init() is
conditioned to ADC state: ADC instance must be disabled.
This condition is applied to all ADC features, for efficiency and
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compatibility over all STM32 families. However, the different
features can be set under different ADC state conditions
(setting possible with ADC enabled without conversion on
going, ADC enabled with conversion on going, ...) Each
feature can be updated afterwards with a unitary function and
potentially with ADC in a different state than disabled, refer to
description of each function for setting conditioned to ADC
state.
After using this function, some other features must be
configured using LL unitary functions. The minimum
configuration remaining to be done is: Set ADC group regular
sequencer: map channel on rank corresponding to channel
number. Refer to function
LL_ADC_REG_SetSequencerChannels();Set ADC channel
sampling time Refer to function
LL_ADC_SetChannelSamplingTime();
LL_ADC_StructInit
Function name
void LL_ADC_StructInit (LL_ADC_InitTypeDef *
ADC_InitStruct)
Function description
Set each LL_ADC_InitTypeDef field to default value.
Parameters
ADC_InitStruct: Pointer to a LL_ADC_InitTypeDef structure
whose fields will be set to default values.
Return values
None
LL_ADC_REG_Init
Function name
ErrorStatus LL_ADC_REG_Init (ADC_TypeDef * ADCx,
LL_ADC_REG_InitTypeDef * ADC_REG_InitStruct)
Function description
Initialize some features of ADC group regular.
Parameters
ADCx: ADC instance
ADC_REG_InitStruct: Pointer to a
LL_ADC_REG_InitTypeDef structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: ADC registers are initialized
ERROR: ADC registers are not initialized
Notes
These parameters have an impact on ADC scope: ADC group
regular. Refer to corresponding unitary functions into
Configuration of ADC hierarchical scope: group regular
(functions with prefix "REG").
The setting of these parameters by function LL_ADC_Init() is
conditioned to ADC state: ADC instance must be disabled.
This condition is applied to all ADC features, for efficiency and
compatibility over all STM32 families. However, the different
features can be set under different ADC state conditions
(setting possible with ADC enabled without conversion on
going, ADC enabled with conversion on going, ...) Each
feature can be updated afterwards with a unitary function and
potentially with ADC in a different state than disabled, refer to
description of each function for setting conditioned to ADC
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state.
After using this function, other features must be configured
using LL unitary functions. The minimum configuration
remaining to be done is: Set ADC group regular sequencer:
map channel on rank corresponding to channel number.
Refer to function
LL_ADC_REG_SetSequencerChannels();Set ADC channel
sampling time Refer to function
LL_ADC_SetChannelSamplingTime();
LL_ADC_REG_StructInit
Function name
void LL_ADC_REG_StructInit (LL_ADC_REG_InitTypeDef *
ADC_REG_InitStruct)
Function description
Set each LL_ADC_REG_InitTypeDef field to default value.
Parameters
ADC_REG_InitStruct: Pointer to a
LL_ADC_REG_InitTypeDef structure whose fields will be set
to default values.
Return values
None
53.3 ADC Firmware driver defines
53.3.1 ADC
Analog watchdog - Monitored channels
LL_ADC_AWD_DISABLE
ADC analog watchdog monitoring disabled
LL_ADC_AWD_ALL_CHANNELS_REG
ADC analog watchdog monitoring of all
channels, converted by group regular only
LL_ADC_AWD_CHANNEL_0_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN0, converted by group regular
only
LL_ADC_AWD_CHANNEL_1_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN1, converted by group regular
only
LL_ADC_AWD_CHANNEL_2_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN2, converted by group regular
only
LL_ADC_AWD_CHANNEL_3_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN3, converted by group regular
only
LL_ADC_AWD_CHANNEL_4_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN4, converted by group regular
only
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LL_ADC_AWD_CHANNEL_5_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN5, converted by group regular
only
LL_ADC_AWD_CHANNEL_6_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN6, converted by group regular
only
LL_ADC_AWD_CHANNEL_7_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN7, converted by group regular
only
LL_ADC_AWD_CHANNEL_8_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN8, converted by group regular
only
LL_ADC_AWD_CHANNEL_9_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN9, converted by group regular
only
LL_ADC_AWD_CHANNEL_10_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN10, converted by group regular
only
LL_ADC_AWD_CHANNEL_11_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN11, converted by group regular
only
LL_ADC_AWD_CHANNEL_12_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN12, converted by group regular
only
LL_ADC_AWD_CHANNEL_13_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN13, converted by group regular
only
LL_ADC_AWD_CHANNEL_14_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN14, converted by group regular
only
LL_ADC_AWD_CHANNEL_15_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN15, converted by group regular
only
LL_ADC_AWD_CHANNEL_17_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN17, converted by group regular
only
LL_ADC_AWD_CHANNEL_18_REG
ADC analog watchdog monitoring of ADC
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external channel (channel connected to GPIO
pin) ADCx_IN18, converted by group regular
only
LL_ADC_AWD_CH_VREFINT_REG
ADC analog watchdog monitoring of ADC
internal channel connected to VrefInt: Internal
voltage reference, converted by group regular
only
LL_ADC_AWD_CH_TEMPSENSOR_REG
ADC analog watchdog monitoring of ADC
internal channel connected to Temperature
sensor, converted by group regular only
LL_ADC_AWD_CHANNEL_16_REG
ADC analog watchdog monitoring of ADC
external channel (channel connected to GPIO
pin) ADCx_IN16, converted by group regular
only
LL_ADC_AWD_CH_VLCD_REG
ADC analog watchdog monitoring of ADC
internal channel connected to Vbat/3: Vbat
voltage through a divider ladder of factor 1/3
to have Vbat always below Vdda, converted
by group regular only
Analog watchdog - Analog watchdog number
LL_ADC_AWD1
ADC analog watchdog number 1
Analog watchdog - Thresholds
LL_ADC_AWD_THRESHOLD_HIGH
ADC analog watchdog threshold high
LL_ADC_AWD_THRESHOLD_LOW
ADC analog watchdog threshold low
LL_ADC_AWD_THRESHOLDS_HIGH_LOW
ADC analog watchdog both thresholds high
and low concatenated into the same data
ADC instance - Channel number
LL_ADC_CHANNEL_0
ADC external channel (channel connected to GPIO
pin) ADCx_IN0
LL_ADC_CHANNEL_1
ADC external channel (channel connected to GPIO
pin) ADCx_IN1
LL_ADC_CHANNEL_2
ADC external channel (channel connected to GPIO
pin) ADCx_IN2
LL_ADC_CHANNEL_3
ADC external channel (channel connected to GPIO
pin) ADCx_IN3
LL_ADC_CHANNEL_4
ADC external channel (channel connected to GPIO
pin) ADCx_IN4
LL_ADC_CHANNEL_5
ADC external channel (channel connected to GPIO
pin) ADCx_IN5
LL_ADC_CHANNEL_6
ADC external channel (channel connected to GPIO
pin) ADCx_IN6
LL_ADC_CHANNEL_7
ADC external channel (channel connected to GPIO
pin) ADCx_IN7
LL_ADC_CHANNEL_8
ADC external channel (channel connected to GPIO
pin) ADCx_IN8
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LL_ADC_CHANNEL_9
ADC external channel (channel connected to GPIO
pin) ADCx_IN9
LL_ADC_CHANNEL_10
ADC external channel (channel connected to GPIO
pin) ADCx_IN10
LL_ADC_CHANNEL_11
ADC external channel (channel connected to GPIO
pin) ADCx_IN11
LL_ADC_CHANNEL_12
ADC external channel (channel connected to GPIO
pin) ADCx_IN12
LL_ADC_CHANNEL_13
ADC external channel (channel connected to GPIO
pin) ADCx_IN13
LL_ADC_CHANNEL_14
ADC external channel (channel connected to GPIO
pin) ADCx_IN14
LL_ADC_CHANNEL_15
ADC external channel (channel connected to GPIO
pin) ADCx_IN15
LL_ADC_CHANNEL_17
ADC external channel (channel connected to GPIO
pin) ADCx_IN17
LL_ADC_CHANNEL_18
ADC external channel (channel connected to GPIO
pin) ADCx_IN18
LL_ADC_CHANNEL_VREFINT
ADC internal channel connected to VrefInt: Internal
voltage reference.
LL_ADC_CHANNEL_TEMPSENSOR
ADC internal channel connected to Temperature
sensor.
LL_ADC_CHANNEL_16
ADC external channel (channel connected to GPIO
pin) ADCx_IN16
LL_ADC_CHANNEL_VLCD
ADC internal channel connected to Vlcd: Vlcd
voltage through a divider ladder of factor 1/4, 1/3
or 1/2 (set by LCD voltage generator biasing), to
have Vlcd always below Vdda.
Channel - Sampling time
LL_ADC_SAMPLINGTIME_1CYCLE_5
Sampling time 1.5 ADC clock cycle
LL_ADC_SAMPLINGTIME_3CYCLES_5
Sampling time 3.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_7CYCLES_5
Sampling time 7.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_12CYCLES_5
Sampling time 12.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_19CYCLES_5
Sampling time 19.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_39CYCLES_5
Sampling time 39.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_79CYCLES_5
Sampling time 79.5 ADC clock cycles
LL_ADC_SAMPLINGTIME_160CYCLES_5
Sampling time 160.5 ADC clock cycles
ADC instance - Clock source
LL_ADC_CLOCK_SYNC_PCLK_DIV4
ADC synchronous clock derived from AHB clock
divided by 4
LL_ADC_CLOCK_SYNC_PCLK_DIV2
ADC synchronous clock derived from AHB clock
divided by 2
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LL_ADC_CLOCK_SYNC_PCLK_DIV1
ADC synchronous clock derived from AHB clock
not divided
LL_ADC_CLOCK_ASYNC
ADC asynchronous clock. Asynchronous clock
prescaler can be configured using function
ADC common - Clock frequency mode
LL_ADC_CLOCK_FREQ_MODE_HIGH
ADC clock mode to high frequency. On
STM32L0, ADC clock frequency above 2.8MHz.
LL_ADC_CLOCK_FREQ_MODE_LOW
ADC clock mode to low frequency. On
STM32L0, ADC clock frequency below 2.8MHz.
ADC common - Clock source
LL_ADC_CLOCK_ASYNC_DIV1
ADC asynchronous clock without prescaler
LL_ADC_CLOCK_ASYNC_DIV2
ADC asynchronous clock with prescaler division by
2. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV4
ADC asynchronous clock with prescaler division by
4. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV6
ADC asynchronous clock with prescaler division by
6. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV8
ADC asynchronous clock with prescaler division by
8. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV10
ADC asynchronous clock with prescaler division by
10. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV12
ADC asynchronous clock with prescaler division by
12. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV16
ADC asynchronous clock with prescaler division by
16. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV32
ADC asynchronous clock with prescaler division by
32. ADC common clock asynchonous prescaler is
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applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV64
ADC asynchronous clock with prescaler division by
64. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV128
ADC asynchronous clock with prescaler division by
128. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
LL_ADC_CLOCK_ASYNC_DIV256
ADC asynchronous clock with prescaler division by
256. ADC common clock asynchonous prescaler is
applied to each ADC instance if the corresponding
ADC instance clock is set to clock source
asynchronous (refer to function
ADC common - Measurement path to internal channels
LL_ADC_PATH_INTERNAL_NONE
ADC measurement pathes all disabled
LL_ADC_PATH_INTERNAL_VREFINT
ADC measurement path to internal channel
VrefInt
LL_ADC_PATH_INTERNAL_TEMPSENSOR
ADC measurement path to internal channel
temperature sensor
LL_ADC_PATH_INTERNAL_VLCD
ADC measurement path to internal channel
Vlcd
ADC instance - Data alignment
LL_ADC_DATA_ALIGN_RIGHT
ADC conversion data alignment: right aligned (alignment
on data register LSB bit 0)
LL_ADC_DATA_ALIGN_LEFT
ADC conversion data alignment: left aligned (aligment
on data register MSB bit 15)
ADC flags
LL_ADC_FLAG_ADRDY
ADC flag ADC instance ready
LL_ADC_FLAG_EOC
ADC flag ADC group regular end of unitary conversion
LL_ADC_FLAG_EOS
ADC flag ADC group regular end of sequence conversions
LL_ADC_FLAG_OVR
ADC flag ADC group regular overrun
LL_ADC_FLAG_EOSMP
ADC flag ADC group regular end of sampling phase
LL_ADC_FLAG_AWD1
ADC flag ADC analog watchdog 1
LL_ADC_FLAG_EOCAL
ADC flag end of calibration
ADC instance - Groups
LL_ADC_GROUP_REGULAR
ADC group regular (available on all STM32 devices)
Definitions of ADC hardware constraints delays
LL_ADC_DELAY_INTERNAL_REGUL_STAB_US
Delay for ADC stabilization time
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(ADC voltage regulator start-up time)
LL_ADC_DELAY_VREFINT_STAB_US
Delay for internal voltage reference
stabilization time
LL_ADC_DELAY_TEMPSENSOR_STAB_US
Delay for temperature sensor
stabilization time
LL_ADC_DELAY_CALIB_ENABLE_ADC_CYCLES
Delay required between ADC end of
calibration and ADC enable
ADC interruptions for configuration (interruption enable or disable)
LL_ADC_IT_ADRDY
ADC interruption ADC instance ready
LL_ADC_IT_EOC
ADC interruption ADC group regular end of unitary conversion
LL_ADC_IT_EOS
ADC interruption ADC group regular end of sequence conversions
LL_ADC_IT_OVR
ADC interruption ADC group regular overrun
LL_ADC_IT_EOSMP
ADC interruption ADC group regular end of sampling phase
LL_ADC_IT_AWD1
ADC interruption ADC analog watchdog 1
LL_ADC_IT_EOCAL
ADC interruption ADC end of calibration
ADC instance - Low power mode
LL_ADC_LP_MODE_NONE
No ADC low power mode activated
LL_ADC_LP_AUTOWAIT
ADC low power mode auto delay:
Dynamic low power mode, ADC
conversions are performed only when
necessary (when previous ADC
conversion data is read). See description
with function
LL_ADC_LP_AUTOPOWEROFF
ADC low power mode auto power-off: the
ADC automatically powers-off after a ADC
conversion and automatically wakes up
when a new ADC conversion is triggered
(with startup time between trigger and
start of sampling). See description with
function
LL_ADC_LP_AUTOWAIT_AUTOPOWEROFF
ADC low power modes auto wait and auto
power-off combined. See description with
function
Oversampling - Discontinuous mode
LL_ADC_OVS_REG_CONT
ADC oversampling discontinuous mode: continuous
mode (all conversions of oversampling ratio are done
from 1 trigger)
LL_ADC_OVS_REG_DISCONT
ADC oversampling discontinuous mode: discontinuous
mode (each conversion of oversampling ratio needs a
trigger)
Oversampling - Ratio
LL_ADC_OVS_RATIO_2
ADC oversampling ratio of 2 (2 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
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potential shift)
LL_ADC_OVS_RATIO_4
ADC oversampling ratio of 4 (4 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_8
ADC oversampling ratio of 8 (8 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_16
ADC oversampling ratio of 16 (16 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_32
ADC oversampling ratio of 32 (32 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_64
ADC oversampling ratio of 64 (64 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_128
ADC oversampling ratio of 128 (128 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
LL_ADC_OVS_RATIO_256
ADC oversampling ratio of 256 (256 ADC conversions are
performed, sum of these conversions data is computed to
result as the ADC oversampling conversion data (before
potential shift)
Oversampling - Oversampling scope
LL_ADC_OVS_DISABLE
ADC oversampling disabled.
LL_ADC_OVS_GRP_REGULAR_CONTINUED
ADC oversampling on conversions of
ADC group regular. Literal suffix
"continued" is kept for compatibility with
other STM32 devices featuring ADC
group injected, in this case other
oversampling scope parameters are
available.
Oversampling - Data shift
LL_ADC_OVS_SHIFT_NONE
ADC oversampling no shift (sum of the ADC
conversions data is not divided to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_1
ADC oversampling shift of 1 (sum of the ADC
conversions data is divided by 2 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_2
ADC oversampling shift of 2 (sum of the ADC
conversions data is divided by 4 to result as the ADC
oversampling conversion data)
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LL_ADC_OVS_SHIFT_RIGHT_3
ADC oversampling shift of 3 (sum of the ADC
conversions data is divided by 8 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_4
ADC oversampling shift of 4 (sum of the ADC
conversions data is divided by 16 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_5
ADC oversampling shift of 5 (sum of the ADC
conversions data is divided by 32 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_6
ADC oversampling shift of 6 (sum of the ADC
conversions data is divided by 64 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_7
ADC oversampling shift of 7 (sum of the ADC
conversions data is divided by 128 to result as the ADC
oversampling conversion data)
LL_ADC_OVS_SHIFT_RIGHT_8
ADC oversampling shift of 8 (sum of the ADC
conversions data is divided by 256 to result as the ADC
oversampling conversion data)
ADC registers compliant with specific purpose
LL_ADC_DMA_REG_REGULAR_DATA
ADC group regular - Continuous mode
LL_ADC_REG_CONV_SINGLE
ADC conversions are performed in single mode:
one conversion per trigger
LL_ADC_REG_CONV_CONTINUOUS
ADC conversions are performed in continuous
mode: after the first trigger, following conversions
launched successively automatically
ADC group regular - DMA transfer of ADC conversion data
LL_ADC_REG_DMA_TRANSFER_NONE
ADC conversions are not transferred by
DMA
LL_ADC_REG_DMA_TRANSFER_LIMITED
ADC conversion data are transferred by
DMA, in limited mode (one shot mode):
DMA transfer requests are stopped
when number of DMA data transfers
(number of ADC conversions) is
reached. This ADC mode is intended to
be used with DMA mode non-circular.
LL_ADC_REG_DMA_TRANSFER_UNLIMITED
ADC conversion data are transferred by
DMA, in unlimited mode: DMA transfer
requests are unlimited, whatever number
of DMA data transferred (number of
ADC conversions). This ADC mode is
intended to be used with DMA mode
circular.
ADC group regular - Overrun behavior on conversion data
LL_ADC_REG_OVR_DATA_PRESERVED
ADC group regular behavior in case of
overrun: data preserved
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LL_ADC_REG_OVR_DATA_OVERWRITTEN
ADC group regular behavior in case of
overrun: data overwritten
ADC group regular - Sequencer discontinuous mode
LL_ADC_REG_SEQ_DISCONT_DISABLE
ADC group regular sequencer discontinuous
mode disable
LL_ADC_REG_SEQ_DISCONT_1RANK
ADC group regular sequencer discontinuous
mode enable with sequence interruption
every rank
ADC group regular - Sequencer scan direction
LL_ADC_REG_SEQ_SCAN_DIR_FORWARD
ADC group regular sequencer scan
direction forward: from lowest channel
number to highest channel number (scan
of all ranks, ADC conversion of ranks
with channels enabled in sequencer). On
some other STM32 families, this setting
is not available and the default scan
direction is forward.
LL_ADC_REG_SEQ_SCAN_DIR_BACKWARD
ADC group regular sequencer scan
direction backward: from highest channel
number to lowest channel number (scan
of all ranks, ADC conversion of ranks
with channels enabled in sequencer)
ADC group regular - Trigger edge
LL_ADC_REG_TRIG_EXT_RISING
ADC group regular conversion trigger
polarity set to rising edge
LL_ADC_REG_TRIG_EXT_FALLING
ADC group regular conversion trigger
polarity set to falling edge
LL_ADC_REG_TRIG_EXT_RISINGFALLING
ADC group regular conversion trigger
polarity set to both rising and falling edges
ADC group regular - Trigger source
LL_ADC_REG_TRIG_SOFTWARE
ADC group regular conversion trigger internal:
SW start.
LL_ADC_REG_TRIG_EXT_TIM6_TRGO
ADC group regular conversion trigger from
external IP: TIM6 TRGO. Trigger edge set to
rising edge (default setting).
LL_ADC_REG_TRIG_EXT_TIM21_CH2
ADC group regular conversion trigger from
external IP: TIM21 channel 2 event (capture
compare: input capture or output capture).
Trigger edge set to rising edge (default
setting).
LL_ADC_REG_TRIG_EXT_TIM2_TRGO
ADC group regular conversion trigger from
external IP: TIM2 TRGO. Trigger edge set to
rising edge (default setting).
LL_ADC_REG_TRIG_EXT_TIM2_CH4
ADC group regular conversion trigger from
external IP: TIM2 channel 4 event (capture
compare: input capture or output capture).
Trigger edge set to rising edge (default
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setting).
LL_ADC_REG_TRIG_EXT_TIM22_TRGO
ADC group regular conversion trigger from
external IP: TIM22 TRGO. Trigger edge set to
rising edge (default setting).
LL_ADC_REG_TRIG_EXT_TIM2_CH3
ADC group regular conversion trigger from
external IP: TIM2 channel 4 event (capture
compare: input capture or output capture).
Trigger edge set to rising edge (default
setting).
LL_ADC_REG_TRIG_EXT_TIM3_TRGO
ADC group regular conversion trigger from
external IP: TIM3 TRG0. Trigger edge set to
rising edge (default setting).
LL_ADC_REG_TRIG_EXT_EXTI_LINE11
ADC group regular conversion trigger from
external IP: external interrupt line 11. Trigger
edge set to rising edge (default setting).
ADC instance - Resolution
LL_ADC_RESOLUTION_12B
ADC resolution 12 bits
LL_ADC_RESOLUTION_10B
ADC resolution 10 bits
LL_ADC_RESOLUTION_8B
ADC resolution 8 bits
LL_ADC_RESOLUTION_6B
ADC resolution 6 bits
ADC helper macro
__LL_ADC_CHANNEL_TO_
DECIMAL_NB
Description:
Helper macro to get ADC channel number in
decimal format from literals
LL_ADC_CHANNEL_x.
Parameters:
__CHANNEL__: This parameter can be one of the
following values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
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LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return value:
Value: between Min_Data=0 and Max_Data=18
Notes:
Example:
__LL_ADC_CHANNEL_TO_DECIMAL_NB(LL_A
DC_CHANNEL_4) will return decimal number "4".
The input can be a value from functions where a
channel number is returned, either defined with
number or with bitfield (only one bit must be set).
__LL_ADC_DECIMAL_NB_TO_
CHANNEL
Description:
Helper macro to get ADC channel in literal format
LL_ADC_CHANNEL_x from number in decimal
format.
Parameters:
__DECIMAL_NB__: Value between Min_Data=0
and Max_Data=18
Return value:
Returned: value can be one of the following
values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT (2)
LL_ADC_CHANNEL_TEMPSENSOR (2)
LL_ADC_CHANNEL_VLCD (1)(2)
Notes:
Example:
__LL_ADC_DECIMAL_NB_TO_CHANNEL(4) will
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return a data equivalent to
"LL_ADC_CHANNEL_4".
__LL_ADC_IS_CHANNEL_
INTERNAL
Description:
Helper macro to determine whether the selected
channel corresponds to literal definitions of driver.
Parameters:
__CHANNEL__: This parameter can be one of the
following values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return value:
Value: "0" if the channel corresponds to a
parameter definition of a ADC external channel
(channel connected to a GPIO pin). Value "1" if
the channel corresponds to a parameter definition
of a ADC internal channel.
Notes:
The different literal definitions of ADC channels
are: ADC internal channel:
LL_ADC_CHANNEL_VREFINT,
LL_ADC_CHANNEL_TEMPSENSOR, ...ADC
external channel (channel connected to a GPIO
pin): LL_ADC_CHANNEL_1,
LL_ADC_CHANNEL_2, ... The channel parameter
must be a value defined from literal definition of a
ADC internal channel
(LL_ADC_CHANNEL_VREFINT,
LL_ADC_CHANNEL_TEMPSENSOR, ...), ADC
external channel (LL_ADC_CHANNEL_1,
LL_ADC_CHANNEL_2, ...), must not be a value
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from functions where a channel number is
returned from ADC registers, because internal and
external channels share the same channel number
in ADC registers. The differentiation is made only
with parameters definitions of driver.
__LL_ADC_CHANNEL_
INTERNAL_TO_EXTERNAL
Description:
Helper macro to convert a channel defined from
parameter definition of a ADC internal channel
(LL_ADC_CHANNEL_VREFINT,
LL_ADC_CHANNEL_TEMPSENSOR, ...), to its
equivalent parameter definition of a ADC external
channel (LL_ADC_CHANNEL_1,
LL_ADC_CHANNEL_2, ...).
Parameters:
__CHANNEL__: This parameter can be one of the
following values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return value:
Returned: value can be one of the following
values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
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LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
Notes:
The channel parameter can be, additionally to a
value defined from parameter definition of a ADC
internal channel (LL_ADC_CHANNEL_VREFINT,
LL_ADC_CHANNEL_TEMPSENSOR, ...), a value
defined from parameter definition of ADC external
channel (LL_ADC_CHANNEL_1,
LL_ADC_CHANNEL_2, ...) or a value from
functions where a channel number is returned
from ADC registers.
__LL_ADC_IS_CHANNEL_
INTERNAL_AVAILABLE
Description:
Helper macro to determine whether the internal
channel selected is available on the ADC instance
selected.
Parameters:
__ADC_INSTANCE__: ADC instance
__CHANNEL__: This parameter can be one of the
following values:
LL_ADC_CHANNEL_VREFINT
LL_ADC_CHANNEL_TEMPSENSOR
LL_ADC_CHANNEL_VLCD (1)
Return value:
Value: "0" if the internal channel selected is not
available on the ADC instance selected. Value "1"
if the internal channel selected is available on the
ADC instance selected.
Notes:
The channel parameter must be a value defined
from parameter definition of a ADC internal
channel (LL_ADC_CHANNEL_VREFINT,
LL_ADC_CHANNEL_TEMPSENSOR, ...), must
not be a value defined from parameter definition of
ADC external channel (LL_ADC_CHANNEL_1,
LL_ADC_CHANNEL_2, ...) or a value from
functions where a channel number is returned
from ADC registers, because internal and external
channels share the same channel number in ADC
registers. The differentiation is made only with
parameters definitions of driver.
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__LL_ADC_ANALOGWD_
CHANNEL_GROUP
Description:
Helper macro to define ADC analog watchdog
parameter: define a single channel to monitor with
analog watchdog from sequencer channel and
groups definition.
Parameters:
__CHANNEL__: This parameter can be one of the
following values:
LL_ADC_CHANNEL_0
LL_ADC_CHANNEL_1
LL_ADC_CHANNEL_2
LL_ADC_CHANNEL_3
LL_ADC_CHANNEL_4
LL_ADC_CHANNEL_5
LL_ADC_CHANNEL_6
LL_ADC_CHANNEL_7
LL_ADC_CHANNEL_8
LL_ADC_CHANNEL_9
LL_ADC_CHANNEL_10
LL_ADC_CHANNEL_11
LL_ADC_CHANNEL_12
LL_ADC_CHANNEL_13
LL_ADC_CHANNEL_14
LL_ADC_CHANNEL_15
LL_ADC_CHANNEL_16 (1)
LL_ADC_CHANNEL_17
LL_ADC_CHANNEL_18
LL_ADC_CHANNEL_VREFINT (2)
LL_ADC_CHANNEL_TEMPSENSOR (2)
LL_ADC_CHANNEL_VLCD (1)(2)
__GROUP__: This parameter can be one of the
following values:
LL_ADC_GROUP_REGULAR
Return value:
Returned: value can be one of the following
values:
LL_ADC_AWD_DISABLE
LL_ADC_AWD_ALL_CHANNELS_REG
LL_ADC_AWD_CHANNEL_0_REG
LL_ADC_AWD_CHANNEL_1_REG
LL_ADC_AWD_CHANNEL_2_REG
LL_ADC_AWD_CHANNEL_3_REG
LL_ADC_AWD_CHANNEL_4_REG
LL_ADC_AWD_CHANNEL_5_REG
LL_ADC_AWD_CHANNEL_6_REG
LL_ADC_AWD_CHANNEL_7_REG
LL_ADC_AWD_CHANNEL_8_REG
LL_ADC_AWD_CHANNEL_9_REG
LL_ADC_AWD_CHANNEL_10_REG
LL_ADC_AWD_CHANNEL_11_REG
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LL_ADC_AWD_CHANNEL_12_REG
LL_ADC_AWD_CHANNEL_13_REG
LL_ADC_AWD_CHANNEL_14_REG
LL_ADC_AWD_CHANNEL_15_REG
LL_ADC_AWD_CHANNEL_16_REG (1)
LL_ADC_AWD_CHANNEL_17_REG
LL_ADC_AWD_CHANNEL_18_REG
LL_ADC_AWD_CH_VREFINT_REG
LL_ADC_AWD_CH_TEMPSENSOR_REG
LL_ADC_AWD_CH_VLCD_REG (1)
Notes:
To be used with function
LL_ADC_SetAnalogWDMonitChannels().
Example: LL_ADC_SetAnalogWDMonitChannels(
ADC1, LL_ADC_AWD1,
__LL_ADC_ANALOGWD_CHANNEL_GROUP(LL
_ADC_CHANNEL4,
LL_ADC_GROUP_REGULAR))
__LL_ADC_ANALOGWD_SET_
THRESHOLD_RESOLUTION
Description:
Helper macro to set the value of ADC analog
watchdog threshold high or low in function of ADC
resolution, when ADC resolution is different of 12
bits.
Parameters:
__ADC_RESOLUTION__: This parameter can be
one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
__AWD_THRESHOLD__: Value between
Min_Data=0x000 and Max_Data=0xFFF
Return value:
Value: between Min_Data=0x000 and
Max_Data=0xFFF
Notes:
To be used with function
LL_ADC_ConfigAnalogWDThresholds() or
LL_ADC_SetAnalogWDThresholds(). Example,
with a ADC resolution of 8 bits, to set the value of
analog watchdog threshold high (on 8 bits):
LL_ADC_SetAnalogWDThresholds (< ADCx
param>,
__LL_ADC_ANALOGWD_SET_THRESHOLD_RE
SOLUTION(LL_ADC_RESOLUTION_8B,
<threshold_value_8_bits>) );
__LL_ADC_ANALOGWD_GET_
THRESHOLD_RESOLUTION
Description:
Helper macro to get the value of ADC analog
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watchdog threshold high or low in function of ADC
resolution, when ADC resolution is different of 12
bits.
Parameters:
__ADC_RESOLUTION__: This parameter can be
one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
__AWD_THRESHOLD_12_BITS__: Value
between Min_Data=0x000 and Max_Data=0xFFF
Return value:
Value: between Min_Data=0x000 and
Max_Data=0xFFF
Notes:
To be used with function
LL_ADC_GetAnalogWDThresholds(). Example,
with a ADC resolution of 8 bits, to get the value of
analog watchdog threshold high (on 8 bits): <
threshold_value_6_bits> =
__LL_ADC_ANALOGWD_GET_THRESHOLD_R
ESOLUTION (LL_ADC_RESOLUTION_8B,
LL_ADC_GetAnalogWDThresholds(<ADCx
param>, LL_ADC_AWD_THRESHOLD_HIGH) );
__LL_ADC_ANALOGWD_
THRESHOLDS_HIGH_LOW
Description:
Helper macro to get the ADC analog watchdog
threshold high or low from raw value containing
both thresholds concatenated.
Parameters:
__AWD_THRESHOLD_TYPE__: This parameter
can be one of the following values:
LL_ADC_AWD_THRESHOLD_HIGH
LL_ADC_AWD_THRESHOLD_LOW
__AWD_THRESHOLDS__: Value between
Min_Data=0x00000000 and
Max_Data=0xFFFFFFFF
Return value:
Value: between Min_Data=0x000 and
Max_Data=0xFFF
Notes:
To be used with function
LL_ADC_GetAnalogWDThresholds(). Example, to
get analog watchdog threshold high from the
register raw value:
__LL_ADC_ANALOGWD_THRESHOLDS_HIGH_
LOW(LL_ADC_AWD_THRESHOLD_HIGH,
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<raw_value_with_both_thresholds>);
__LL_ADC_COMMON_
INSTANCE
Description:
Helper macro to select the ADC common instance
to which is belonging the selected ADC instance.
Parameters:
__ADCx__: ADC instance
Return value:
ADC: common register instance
Notes:
ADC common register instance can be used for:
Set parameters common to several ADC
instancesMultimode (for devices with several ADC
instances) Refer to functions having argument
"ADCxy_COMMON" as parameter.
__LL_ADC_IS_ENABLED_ALL_
COMMON_INSTANCE
Description:
Helper macro to check if all ADC instances
sharing the same ADC common instance are
disabled.
Parameters:
__ADCXY_COMMON__: ADC common instance
(can be set directly from CMSIS definition or by
using helper macro
Return value:
Value: "0" if all ADC instances sharing the same
ADC common instance are disabled. Value "1" if at
least one ADC instance sharing the same ADC
common instance is enabled.
Notes:
This check is required by functions with setting
conditioned to ADC state: All ADC instances of the
ADC common group must be disabled. Refer to
functions having argument "ADCxy_COMMON" as
parameter. On devices with only 1 ADC common
instance, parameter of this macro is useless and
can be ignored (parameter kept for compatibility
with devices featuring several ADC common
instances).
__LL_ADC_DIGITAL_SCALE
Description:
Helper macro to define the ADC conversion data
full-scale digital value corresponding to the
selected ADC resolution.
Parameters:
__ADC_RESOLUTION__: This parameter can be
one of the following values:
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LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return value:
ADC: conversion data equivalent voltage value
(unit: mVolt)
Notes:
ADC conversion data full-scale corresponds to
voltage range determined by analog voltage
references Vref+ and Vref- (refer to reference
manual).
__LL_ADC_CONVERT_DATA_
RESOLUTION
Description:
Helper macro to convert the ADC conversion data
from a resolution to another resolution.
Parameters:
__DATA__: ADC conversion data to be converted
__ADC_RESOLUTION_CURRENT__: Resolution
of to the data to be converted This parameter can
be one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
__ADC_RESOLUTION_TARGET__: Resolution of
the data after conversion This parameter can be
one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return value:
ADC: conversion data to the requested resolution
__LL_ADC_CALC_DATA_TO_
VOLTAGE
Description:
Helper macro to calculate the voltage (unit: mVolt)
corresponding to a ADC conversion data (unit:
digital value).
Parameters:
__VREFANALOG_VOLTAGE__: Analog
reference voltage (unit: mV)
__ADC_DATA__: ADC conversion data
(resolution 12 bits) (unit: digital value).
__ADC_RESOLUTION__: This parameter can be
one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
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LL_ADC_RESOLUTION_6B
Return value:
ADC: conversion data equivalent voltage value
(unit: mVolt)
Notes:
Analog reference voltage (Vref+) must be either
known from user board environment or can be
calculated using ADC measurement and ADC
helper macro
__LL_ADC_CALC_VREFANALOG_VOLTAGE().
__LL_ADC_CALC_VREFANAL
OG_VOLTAGE
Description:
Helper macro to calculate analog reference
voltage (Vref+) (unit: mVolt) from ADC conversion
data of internal voltage reference VrefInt.
Parameters:
__VREFINT_ADC_DATA__: ADC conversion data
(resolution 12 bits) of internal voltage reference
VrefInt (unit: digital value).
__ADC_RESOLUTION__: This parameter can be
one of the following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return value:
Analog: reference voltage (unit: mV)
Notes:
Computation is using VrefInt calibration value
stored in system memory for each device during
production. This voltage depends on user board
environment: voltage level connected to pin Vref+.
On devices with small package, the pin Vref+ is
not present and internally bonded to pin Vdda. On
this STM32 serie, calibration data of internal
voltage reference VrefInt corresponds to a
resolution of 12 bits, this is the recommended
ADC resolution to convert voltage of internal
voltage reference VrefInt. Otherwise, this macro
performs the processing to scale ADC conversion
data to 12 bits.
__LL_ADC_CALC_
TEMPERATURE
Description:
Helper macro to calculate the temperature (unit:
degree Celsius) from ADC conversion data of
internal temperature sensor.
Parameters:
__VREFANALOG_VOLTAGE__: Analog
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reference voltage (unit: mV)
__TEMPSENSOR_ADC_DATA__: ADC
conversion data of internal temperature sensor
(unit: digital value).
__ADC_RESOLUTION__: ADC resolution at
which internal temperature sensor voltage has
been measured. This parameter can be one of the
following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return value:
Temperature: (unit: degree Celsius)
Notes:
Computation is using temperature sensor
calibration values stored in system memory for
each device during production. Calculation
formula: Temperature = ((TS_ADC_DATA -
TS_CAL1) * (TS_CAL2_TEMP -
TS_CAL1_TEMP)) / (TS_CAL2 - TS_CAL1) +
TS_CAL1_TEMP with TS_ADC_DATA =
temperature sensor raw data measured by ADC
Avg_Slope = (TS_CAL2 - TS_CAL1) /
(TS_CAL2_TEMP - TS_CAL1_TEMP) TS_CAL1 =
equivalent TS_ADC_DATA at temperature
TEMP_DEGC_CAL1 (calibrated in factory)
TS_CAL2 = equivalent TS_ADC_DATA at
temperature TEMP_DEGC_CAL2 (calibrated in
factory) Caution: Calculation relevancy under
reserve that calibration parameters are correct
(address and data). To calculate temperature
using temperature sensor datasheet typical values
(generic values less, therefore less accurate than
calibrated values), use helper macro
__LL_ADC_CALC_TEMPERATURE_TYP_PARA
MS(). As calculation input, the analog reference
voltage (Vref+) must be defined as it impacts the
ADC LSB equivalent voltage. Analog reference
voltage (Vref+) must be either known from user
board environment or can be calculated using
ADC measurement and ADC helper macro
__LL_ADC_CALC_VREFANALOG_VOLTAGE().
On this STM32 serie, calibration data of
temperature sensor corresponds to a resolution of
12 bits, this is the recommended ADC resolution
to convert voltage of temperature sensor.
Otherwise, this macro performs the processing to
scale ADC conversion data to 12 bits.
__LL_ADC_CALC_
TEMPERATURE_TYP_
PARAMS
Description:
Helper macro to calculate the temperature (unit:
degree Celsius) from ADC conversion data of
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internal temperature sensor.
Parameters:
__TEMPSENSOR_TYP_AVGSLOPE__: Device
datasheet data: Temperature sensor slope typical
value (unit: uV/DegCelsius). On STM32L0, refer to
device datasheet parameter "Avg_Slope".
__TEMPSENSOR_TYP_CALX_V__: Device
datasheet data: Temperature sensor voltage
typical value (at temperature and Vref+ defined in
parameters below) (unit: mV). On STM32L0, refer
to device datasheet parameter "V130"
(corresponding to TS_CAL2).
__TEMPSENSOR_CALX_TEMP__: Device
datasheet data: Temperature at which
temperature sensor voltage (see parameter
above) is corresponding (unit: mV)
__VREFANALOG_VOLTAGE__: Analog voltage
reference (Vref+) voltage (unit: mV)
__TEMPSENSOR_ADC_DATA__: ADC
conversion data of internal temperature sensor
(unit: digital value).
__ADC_RESOLUTION__: ADC resolution at
which internal temperature sensor voltage has
been measured. This parameter can be one of the
following values:
LL_ADC_RESOLUTION_12B
LL_ADC_RESOLUTION_10B
LL_ADC_RESOLUTION_8B
LL_ADC_RESOLUTION_6B
Return value:
Temperature: (unit: degree Celsius)
Notes:
Computation is using temperature sensor typical
values (refer to device datasheet). Calculation
formula: Temperature =
(TS_TYP_CALx_VOLT(uV) - TS_ADC_DATA *
Conversion_uV) / Avg_Slope + CALx_TEMP with
TS_ADC_DATA = temperature sensor raw data
measured by ADC (unit: digital value) Avg_Slope
= temperature sensor slope (unit: uV/Degree
Celsius) TS_TYP_CALx_VOLT = temperature
sensor digital value at temperature CALx_TEMP
(unit: mV) Caution: Calculation relevancy under
reserve the temperature sensor of the current
device has characteristics in line with datasheet
typical values. If temperature sensor calibration
values are available on on this device (presence of
macro __LL_ADC_CALC_TEMPERATURE()),
temperature calculation will be more accurate
using helper macro
__LL_ADC_CALC_TEMPERATURE(). As
calculation input, the analog reference voltage
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(Vref+) must be defined as it impacts the ADC
LSB equivalent voltage. Analog reference voltage
(Vref+) must be either known from user board
environment or can be calculated using ADC
measurement and ADC helper macro
__LL_ADC_CALC_VREFANALOG_VOLTAGE().
ADC measurement data must correspond to a
resolution of 12bits (full scale digital value 4095). If
not the case, the data must be preliminarily
rescaled to an equivalent resolution of 12 bits.
Common write and read registers Macros
LL_ADC_WriteReg
Description:
Write a value in ADC register.
Parameters:
__INSTANCE__: ADC Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_ADC_ReadReg
Description:
Read a value in ADC register.
Parameters:
__INSTANCE__: ADC Instance
__REG__: Register to be read
Return value:
Register: value
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54 LL BUS Generic Driver
54.1 BUS Firmware driver API description
54.1.1 Detailed description of functions
LL_AHB1_GRP1_EnableClock
Function name
__STATIC_INLINE void LL_AHB1_GRP1_EnableClock
(uint32_t Periphs)
Function description
Enable AHB1 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBENR DMAEN LL_AHB1_GRP1_EnableClock
AHBENR MIFEN LL_AHB1_GRP1_EnableClock
AHBENR CRCEN LL_AHB1_GRP1_EnableClock
AHBENR TSCEN LL_AHB1_GRP1_EnableClock
AHBENR RNGEN LL_AHB1_GRP1_EnableClock
AHBENR CRYPEN LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
Function name
__STATIC_INLINE uint32_t LL_AHB1_GRP1_IsEnabledClock
(uint32_t Periphs)
Function description
Check if AHB1 peripheral clock is enabled or not.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
State: of Periphs (1 or 0).
Reference Manual to
LL API cross
reference:
AHBENR DMAEN LL_AHB1_GRP1_IsEnabledClock
AHBENR MIFEN LL_AHB1_GRP1_IsEnabledClock
AHBENR CRCEN LL_AHB1_GRP1_IsEnabledClock
AHBENR TSCEN LL_AHB1_GRP1_IsEnabledClock
AHBENR RNGEN LL_AHB1_GRP1_IsEnabledClock
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AHBENR CRYPEN LL_AHB1_GRP1_IsEnabledClock
LL_AHB1_GRP1_DisableClock
Function name
__STATIC_INLINE void LL_AHB1_GRP1_DisableClock
(uint32_t Periphs)
Function description
Disable AHB1 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBENR DMAEN LL_AHB1_GRP1_DisableClock
AHBENR MIFEN LL_AHB1_GRP1_DisableClock
AHBENR CRCEN LL_AHB1_GRP1_DisableClock
AHBENR TSCEN LL_AHB1_GRP1_DisableClock
AHBENR RNGEN LL_AHB1_GRP1_DisableClock
AHBENR CRYPEN LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_ForceReset
Function name
__STATIC_INLINE void LL_AHB1_GRP1_ForceReset (uint32_t
Periphs)
Function description
Force AHB1 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_ALL
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBRSTR DMARST LL_AHB1_GRP1_ForceReset
AHBRSTR MIFRST LL_AHB1_GRP1_ForceReset
AHBRSTR CRCRST LL_AHB1_GRP1_ForceReset
AHBRSTR TSCRST LL_AHB1_GRP1_ForceReset
AHBRSTR RNGRST LL_AHB1_GRP1_ForceReset
AHBRSTR CRYPRST LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
Function name
__STATIC_INLINE void LL_AHB1_GRP1_ReleaseReset
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(uint32_t Periphs)
Function description
Release AHB1 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_ALL
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBRSTR DMARST LL_AHB1_GRP1_ReleaseReset
AHBRSTR MIFRST LL_AHB1_GRP1_ReleaseReset
AHBRSTR CRCRST LL_AHB1_GRP1_ReleaseReset
AHBRSTR TSCRST LL_AHB1_GRP1_ReleaseReset
AHBRSTR RNGRST LL_AHB1_GRP1_ReleaseReset
AHBRSTR CRYPRST LL_AHB1_GRP1_ReleaseReset
LL_AHB1_GRP1_EnableClockSleep
Function name
__STATIC_INLINE void LL_AHB1_GRP1_EnableClockSleep
(uint32_t Periphs)
Function description
Enable AHB1 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_SRAM
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBSMENR DMASMEN
LL_AHB1_GRP1_EnableClockSleep
AHBSMENR MIFSMEN LL_AHB1_GRP1_EnableClockSleep
AHBSMENR SRAMSMEN
LL_AHB1_GRP1_EnableClockSleep
AHBSMENR CRCSMEN
LL_AHB1_GRP1_EnableClockSleep
AHBSMENR TSCSMEN
LL_AHB1_GRP1_EnableClockSleep
AHBSMENR RNGSMEN
LL_AHB1_GRP1_EnableClockSleep
AHBSMENR CRYPSMEN
LL_AHB1_GRP1_EnableClockSleep
LL BUS Generic Driver
UM1749
762/1466
DocID026232 Rev 6
LL_AHB1_GRP1_DisableClockSleep
Function name
__STATIC_INLINE void LL_AHB1_GRP1_DisableClockSleep
(uint32_t Periphs)
Function description
Disable AHB1 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_AHB1_GRP1_PERIPH_DMA1
LL_AHB1_GRP1_PERIPH_MIF
LL_AHB1_GRP1_PERIPH_SRAM
LL_AHB1_GRP1_PERIPH_CRC
LL_AHB1_GRP1_PERIPH_TSC (*)
LL_AHB1_GRP1_PERIPH_RNG (*)
LL_AHB1_GRP1_PERIPH_CRYP (*)
Return values
None
Reference Manual to
LL API cross
reference:
AHBSMENR DMASMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR MIFSMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR SRAMSMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR CRCSMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR TSCSMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR RNGSMEN
LL_AHB1_GRP1_DisableClockSleep
AHBSMENR CRYPSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClock
Function name
__STATIC_INLINE void LL_APB1_GRP1_EnableClock
(uint32_t Periphs)
Function description
Enable APB1 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
UM1749
LL BUS Generic Driver
DocID026232 Rev 6
763/1466
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
LL API cross
reference:
APB1ENR TIM2EN LL_APB1_GRP1_EnableClock
APB1ENR TIM3EN LL_APB1_GRP1_EnableClock
APB1ENR TIM6EN LL_APB1_GRP1_EnableClock
APB1ENR TIM7EN LL_APB1_GRP1_EnableClock
APB1ENR LCDEN LL_APB1_GRP1_EnableClock
APB1ENR WWDGEN LL_APB1_GRP1_EnableClock
APB1ENR SPI2EN LL_APB1_GRP1_EnableClock
APB1ENR USART2EN LL_APB1_GRP1_EnableClock
APB1ENR LPUART1EN LL_APB1_GRP1_EnableClock
APB1ENR USART4EN LL_APB1_GRP1_EnableClock
APB1ENR USART5EN LL_APB1_GRP1_EnableClock
APB1ENR I2C1EN LL_APB1_GRP1_EnableClock
APB1ENR I2C2EN LL_APB1_GRP1_EnableClock
APB1ENR USBEN LL_APB1_GRP1_EnableClock
APB1ENR CRSEN LL_APB1_GRP1_EnableClock
APB1ENR PWREN LL_APB1_GRP1_EnableClock
APB1ENR DACEN LL_APB1_GRP1_EnableClock
APB1ENR I2C3EN LL_APB1_GRP1_EnableClock
APB1ENR LPTIM1EN LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
Function name
__STATIC_INLINE uint32_t LL_APB1_GRP1_IsEnabledClock
(uint32_t Periphs)
Function description
Check if APB1 peripheral clock is enabled or not.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL BUS Generic Driver
UM1749
764/1466
DocID026232 Rev 6
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
State: of Periphs (1 or 0).
Reference Manual to
LL API cross
reference:
APB1ENR TIM2EN LL_APB1_GRP1_IsEnabledClock
APB1ENR TIM3EN LL_APB1_GRP1_IsEnabledClock
APB1ENR TIM6EN LL_APB1_GRP1_IsEnabledClock
APB1ENR TIM7EN LL_APB1_GRP1_IsEnabledClock
APB1ENR LCDEN LL_APB1_GRP1_IsEnabledClock
APB1ENR WWDGEN LL_APB1_GRP1_IsEnabledClock
APB1ENR SPI2EN LL_APB1_GRP1_IsEnabledClock
APB1ENR USART2EN LL_APB1_GRP1_IsEnabledClock
APB1ENR LPUART1EN LL_APB1_GRP1_IsEnabledClock
APB1ENR USART4EN LL_APB1_GRP1_IsEnabledClock
APB1ENR USART5EN LL_APB1_GRP1_IsEnabledClock
APB1ENR I2C1EN LL_APB1_GRP1_IsEnabledClock
APB1ENR I2C2EN LL_APB1_GRP1_IsEnabledClock
APB1ENR USBEN LL_APB1_GRP1_IsEnabledClock
APB1ENR CRSEN LL_APB1_GRP1_IsEnabledClock
APB1ENR PWREN LL_APB1_GRP1_IsEnabledClock
APB1ENR DACEN LL_APB1_GRP1_IsEnabledClock
APB1ENR I2C3EN LL_APB1_GRP1_IsEnabledClock
APB1ENR LPTIM1EN LL_APB1_GRP1_IsEnabledClock
LL_APB1_GRP1_DisableClock
Function name
__STATIC_INLINE void LL_APB1_GRP1_DisableClock
(uint32_t Periphs)
Function description
Disable APB1 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
APB1ENR TIM2EN LL_APB1_GRP1_DisableClock
UM1749
LL BUS Generic Driver
DocID026232 Rev 6
765/1466
LL API cross
reference:
APB1ENR TIM3EN LL_APB1_GRP1_DisableClock
APB1ENR TIM6EN LL_APB1_GRP1_DisableClock
APB1ENR TIM7EN LL_APB1_GRP1_DisableClock
APB1ENR LCDEN LL_APB1_GRP1_DisableClock
APB1ENR WWDGEN LL_APB1_GRP1_DisableClock
APB1ENR SPI2EN LL_APB1_GRP1_DisableClock
APB1ENR USART2EN LL_APB1_GRP1_DisableClock
APB1ENR LPUART1EN LL_APB1_GRP1_DisableClock
APB1ENR USART4EN LL_APB1_GRP1_DisableClock
APB1ENR USART5EN LL_APB1_GRP1_DisableClock
APB1ENR I2C1EN LL_APB1_GRP1_DisableClock
APB1ENR I2C2EN LL_APB1_GRP1_DisableClock
APB1ENR USBEN LL_APB1_GRP1_DisableClock
APB1ENR CRSEN LL_APB1_GRP1_DisableClock
APB1ENR PWREN LL_APB1_GRP1_DisableClock
APB1ENR DACEN LL_APB1_GRP1_DisableClock
APB1ENR I2C3EN LL_APB1_GRP1_DisableClock
APB1ENR LPTIM1EN LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_ForceReset
Function name
__STATIC_INLINE void LL_APB1_GRP1_ForceReset (uint32_t
Periphs)
Function description
Force APB1 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_ALL
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
LL API cross
reference:
APB1RSTR TIM2RST LL_APB1_GRP1_ForceReset
APB1RSTR TIM3RST LL_APB1_GRP1_ForceReset
APB1RSTR TIM6RST LL_APB1_GRP1_ForceReset
APB1RSTR TIM7RST LL_APB1_GRP1_ForceReset
LL BUS Generic Driver
UM1749
766/1466
DocID026232 Rev 6
APB1RSTR LCDRST LL_APB1_GRP1_ForceReset
APB1RSTR WWDGRST LL_APB1_GRP1_ForceReset
APB1RSTR SPI2RST LL_APB1_GRP1_ForceReset
APB1RSTR USART2RST LL_APB1_GRP1_ForceReset
APB1RSTR LPUART1RST LL_APB1_GRP1_ForceReset
APB1RSTR USART4RST LL_APB1_GRP1_ForceReset
APB1RSTR USART5RST LL_APB1_GRP1_ForceReset
APB1RSTR I2C1RST LL_APB1_GRP1_ForceReset
APB1RSTR I2C2RST LL_APB1_GRP1_ForceReset
APB1RSTR USBRST LL_APB1_GRP1_ForceReset
APB1RSTR CRSRST LL_APB1_GRP1_ForceReset
APB1RSTR PWRRST LL_APB1_GRP1_ForceReset
APB1RSTR DACRST LL_APB1_GRP1_ForceReset
APB1RSTR I2C3RST LL_APB1_GRP1_ForceReset
APB1RSTR LPTIM1RST LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
Function name
__STATIC_INLINE void LL_APB1_GRP1_ReleaseReset
(uint32_t Periphs)
Function description
Release APB1 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_ALL
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
LL API cross
reference:
APB1RSTR TIM2RST LL_APB1_GRP1_ReleaseReset
APB1RSTR TIM3RST LL_APB1_GRP1_ReleaseReset
APB1RSTR TIM6RST LL_APB1_GRP1_ReleaseReset
APB1RSTR TIM7RST LL_APB1_GRP1_ReleaseReset
APB1RSTR LCDRST LL_APB1_GRP1_ReleaseReset
APB1RSTR WWDGRST LL_APB1_GRP1_ReleaseReset
APB1RSTR SPI2RST LL_APB1_GRP1_ReleaseReset
UM1749
LL BUS Generic Driver
DocID026232 Rev 6
767/1466
APB1RSTR USART2RST LL_APB1_GRP1_ReleaseReset
APB1RSTR LPUART1RST LL_APB1_GRP1_ReleaseReset
APB1RSTR USART4RST LL_APB1_GRP1_ReleaseReset
APB1RSTR USART5RST LL_APB1_GRP1_ReleaseReset
APB1RSTR I2C1RST LL_APB1_GRP1_ReleaseReset
APB1RSTR I2C2RST LL_APB1_GRP1_ReleaseReset
APB1RSTR USBRST LL_APB1_GRP1_ReleaseReset
APB1RSTR CRSRST LL_APB1_GRP1_ReleaseReset
APB1RSTR PWRRST LL_APB1_GRP1_ReleaseReset
APB1RSTR DACRST LL_APB1_GRP1_ReleaseReset
APB1RSTR I2C3RST LL_APB1_GRP1_ReleaseReset
APB1RSTR LPTIM1RST LL_APB1_GRP1_ReleaseReset
LL_APB1_GRP1_EnableClockSleep
Function name
__STATIC_INLINE void LL_APB1_GRP1_EnableClockSleep
(uint32_t Periphs)
Function description
Enable APB1 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
LL API cross
reference:
APB1SMENR TIM2SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR TIM3SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR TIM6SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR TIM7SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR LCDSMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR WWDGSMEN
LL BUS Generic Driver
UM1749
768/1466
DocID026232 Rev 6
LL_APB1_GRP1_EnableClockSleep
APB1SMENR SPI2SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR USART2SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR LPUART1SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR USART4SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR USART5SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR I2C1SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR I2C2SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR USBSMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR CRSSMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR PWRSMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR DACSMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR I2C3SMEN
LL_APB1_GRP1_EnableClockSleep
APB1SMENR LPTIM1SMEN
LL_APB1_GRP1_EnableClockSleep
LL_APB1_GRP1_DisableClockSleep
Function name
__STATIC_INLINE void LL_APB1_GRP1_DisableClockSleep
(uint32_t Periphs)
Function description
Disable APB1 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB1_GRP1_PERIPH_TIM2
LL_APB1_GRP1_PERIPH_TIM3 (*)
LL_APB1_GRP1_PERIPH_TIM6 (*)
LL_APB1_GRP1_PERIPH_TIM7 (*)
LL_APB1_GRP1_PERIPH_LCD (*)
LL_APB1_GRP1_PERIPH_WWDG
LL_APB1_GRP1_PERIPH_SPI2 (*)
LL_APB1_GRP1_PERIPH_USART2
LL_APB1_GRP1_PERIPH_LPUART1
LL_APB1_GRP1_PERIPH_USART4 (*)
LL_APB1_GRP1_PERIPH_USART5 (*)
LL_APB1_GRP1_PERIPH_I2C1
LL_APB1_GRP1_PERIPH_I2C2 (*)
LL_APB1_GRP1_PERIPH_USB (*)
LL_APB1_GRP1_PERIPH_CRS (*)
LL_APB1_GRP1_PERIPH_PWR
LL_APB1_GRP1_PERIPH_DAC1 (*)
UM1749
LL BUS Generic Driver
DocID026232 Rev 6
769/1466
LL_APB1_GRP1_PERIPH_I2C3 (*)
LL_APB1_GRP1_PERIPH_LPTIM1
Return values
None
Reference Manual to
LL API cross
reference:
APB1SMENR TIM2SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR TIM3SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR TIM6SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR TIM7SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR LCDSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR WWDGSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR SPI2SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR USART2SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR LPUART1SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR USART4SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR USART5SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR I2C1SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR I2C2SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR USBSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR CRSSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR PWRSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR DACSMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR I2C3SMEN
LL_APB1_GRP1_DisableClockSleep
APB1SMENR LPTIM1SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClock
Function name
__STATIC_INLINE void LL_APB2_GRP1_EnableClock
(uint32_t Periphs)
Function description
Enable APB2 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL BUS Generic Driver
UM1749
770/1466
DocID026232 Rev 6
LL_APB2_GRP1_PERIPH_FW
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2ENR SYSCFGEN LL_APB2_GRP1_EnableClock
APB2ENR TIM21EN LL_APB2_GRP1_EnableClock
APB2ENR TIM22EN LL_APB2_GRP1_EnableClock
APB2ENR FWEN LL_APB2_GRP1_EnableClock
APB2ENR ADCEN LL_APB2_GRP1_EnableClock
APB2ENR SPI1EN LL_APB2_GRP1_EnableClock
APB2ENR USART1EN LL_APB2_GRP1_EnableClock
APB2ENR DBGEN LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
Function name
__STATIC_INLINE uint32_t LL_APB2_GRP1_IsEnabledClock
(uint32_t Periphs)
Function description
Check if APB2 peripheral clock is enabled or not.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_FW
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
State: of Periphs (1 or 0).
Reference Manual to
LL API cross
reference:
APB2ENR SYSCFGEN LL_APB2_GRP1_IsEnabledClock
APB2ENR TIM21EN LL_APB2_GRP1_IsEnabledClock
APB2ENR TIM22EN LL_APB2_GRP1_IsEnabledClock
APB2ENR FWEN LL_APB2_GRP1_IsEnabledClock
APB2ENR ADCEN LL_APB2_GRP1_IsEnabledClock
APB2ENR SPI1EN LL_APB2_GRP1_IsEnabledClock
APB2ENR USART1EN LL_APB2_GRP1_IsEnabledClock
APB2ENR DBGEN LL_APB2_GRP1_IsEnabledClock
LL_APB2_GRP1_DisableClock
Function name
__STATIC_INLINE void LL_APB2_GRP1_DisableClock
(uint32_t Periphs)
Function description
Disable APB2 peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
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LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_FW
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2ENR SYSCFGEN LL_APB2_GRP1_DisableClock
APB2ENR TIM21EN LL_APB2_GRP1_DisableClock
APB2ENR TIM22EN LL_APB2_GRP1_DisableClock
APB2ENR FWEN LL_APB2_GRP1_DisableClock
APB2ENR ADCEN LL_APB2_GRP1_DisableClock
APB2ENR SPI1EN LL_APB2_GRP1_DisableClock
APB2ENR USART1EN LL_APB2_GRP1_DisableClock
APB2ENR DBGEN LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_ForceReset
Function name
__STATIC_INLINE void LL_APB2_GRP1_ForceReset (uint32_t
Periphs)
Function description
Force APB2 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_ALL
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2RSTR SYSCFGRST LL_APB2_GRP1_ForceReset
APB2RSTR TIM21RST LL_APB2_GRP1_ForceReset
APB2RSTR TIM22RST LL_APB2_GRP1_ForceReset
APB2RSTR ADCRST LL_APB2_GRP1_ForceReset
APB2RSTR SPI1RST LL_APB2_GRP1_ForceReset
APB2RSTR USART1RST LL_APB2_GRP1_ForceReset
APB2RSTR DBGRST LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
Function name
__STATIC_INLINE void LL_APB2_GRP1_ReleaseReset
(uint32_t Periphs)
Function description
Release APB2 peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_ALL
LL_APB2_GRP1_PERIPH_SYSCFG
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LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2RSTR SYSCFGRST LL_APB2_GRP1_ReleaseReset
APB2RSTR TIM21RST LL_APB2_GRP1_ReleaseReset
APB2RSTR TIM22RST LL_APB2_GRP1_ReleaseReset
APB2RSTR ADCRST LL_APB2_GRP1_ReleaseReset
APB2RSTR SPI1RST LL_APB2_GRP1_ReleaseReset
APB2RSTR USART1RST LL_APB2_GRP1_ReleaseReset
APB2RSTR DBGRST LL_APB2_GRP1_ReleaseReset
LL_APB2_GRP1_EnableClockSleep
Function name
__STATIC_INLINE void LL_APB2_GRP1_EnableClockSleep
(uint32_t Periphs)
Function description
Enable APB2 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2SMENR SYSCFGSMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR TIM21SMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR TIM22SMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR ADCSMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR SPI1SMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR USART1SMEN
LL_APB2_GRP1_EnableClockSleep
APB2SMENR DBGSMEN
LL_APB2_GRP1_EnableClockSleep
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LL_APB2_GRP1_DisableClockSleep
Function name
__STATIC_INLINE void LL_APB2_GRP1_DisableClockSleep
(uint32_t Periphs)
Function description
Disable APB2 peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_APB2_GRP1_PERIPH_SYSCFG
LL_APB2_GRP1_PERIPH_TIM21
LL_APB2_GRP1_PERIPH_TIM22 (*)
LL_APB2_GRP1_PERIPH_ADC1
LL_APB2_GRP1_PERIPH_SPI1
LL_APB2_GRP1_PERIPH_USART1 (*)
LL_APB2_GRP1_PERIPH_DBGMCU
Return values
None
Reference Manual to
LL API cross
reference:
APB2SMENR SYSCFGSMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR TIM21SMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR TIM22SMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR ADCSMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR SPI1SMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR USART1SMEN
LL_APB2_GRP1_DisableClockSleep
APB2SMENR DBGSMEN
LL_APB2_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClock
Function name
__STATIC_INLINE void LL_IOP_GRP1_EnableClock (uint32_t
Periphs)
Function description
Enable IOP peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPENR GPIOAEN LL_IOP_GRP1_EnableClock
IOPENR GPIOBEN LL_IOP_GRP1_EnableClock
IOPENR GPIOCEN LL_IOP_GRP1_EnableClock
IOPENR GPIODEN LL_IOP_GRP1_EnableClock
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IOPENR GPIOEEN LL_IOP_GRP1_EnableClock
IOPENR GPIOHEN LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
Function name
__STATIC_INLINE uint32_t LL_IOP_GRP1_IsEnabledClock
(uint32_t Periphs)
Function description
Check if IOP peripheral clock is enabled or not.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
State: of Periphs (1 or 0).
Reference Manual to
LL API cross
reference:
IOPENR GPIOAEN LL_IOP_GRP1_IsEnabledClock
IOPENR GPIOBEN LL_IOP_GRP1_IsEnabledClock
IOPENR GPIOCEN LL_IOP_GRP1_IsEnabledClock
IOPENR GPIODEN LL_IOP_GRP1_IsEnabledClock
IOPENR GPIOEEN LL_IOP_GRP1_IsEnabledClock
IOPENR GPIOHEN LL_IOP_GRP1_IsEnabledClock
LL_IOP_GRP1_DisableClock
Function name
__STATIC_INLINE void LL_IOP_GRP1_DisableClock (uint32_t
Periphs)
Function description
Disable IOP peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPENR GPIOAEN LL_IOP_GRP1_DisableClock
IOPENR GPIOBEN LL_IOP_GRP1_DisableClock
IOPENR GPIOCEN LL_IOP_GRP1_DisableClock
IOPENR GPIODEN LL_IOP_GRP1_DisableClock
IOPENR GPIOEEN LL_IOP_GRP1_DisableClock
IOPENR GPIOHEN LL_IOP_GRP1_DisableClock
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LL_IOP_GRP1_ForceReset
Function name
__STATIC_INLINE void LL_IOP_GRP1_ForceReset (uint32_t
Periphs)
Function description
Disable IOP peripherals clock.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_ALL
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPRSTR GPIOASMEN LL_IOP_GRP1_ForceReset
IOPRSTR GPIOBSMEN LL_IOP_GRP1_ForceReset
IOPRSTR GPIOCSMEN LL_IOP_GRP1_ForceReset
IOPRSTR GPIODSMEN LL_IOP_GRP1_ForceReset
IOPRSTR GPIOESMEN LL_IOP_GRP1_ForceReset
IOPRSTR GPIOHSMEN LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
Function name
__STATIC_INLINE void LL_IOP_GRP1_ReleaseReset (uint32_t
Periphs)
Function description
Release IOP peripherals reset.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_ALL
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPRSTR GPIOASMEN LL_IOP_GRP1_ReleaseReset
IOPRSTR GPIOBSMEN LL_IOP_GRP1_ReleaseReset
IOPRSTR GPIOCSMEN LL_IOP_GRP1_ReleaseReset
IOPRSTR GPIODSMEN LL_IOP_GRP1_ReleaseReset
IOPRSTR GPIOESMEN LL_IOP_GRP1_ReleaseReset
IOPRSTR GPIOHSMEN LL_IOP_GRP1_ReleaseReset
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LL_IOP_GRP1_EnableClockSleep
Function name
__STATIC_INLINE void LL_IOP_GRP1_EnableClockSleep
(uint32_t Periphs)
Function description
Enable IOP peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPSMENR GPIOARST LL_IOP_GRP1_EnableClockSleep
IOPSMENR GPIOBRST LL_IOP_GRP1_EnableClockSleep
IOPSMENR GPIOCRST LL_IOP_GRP1_EnableClockSleep
IOPSMENR GPIODRST LL_IOP_GRP1_EnableClockSleep
IOPSMENR GPIOERST LL_IOP_GRP1_EnableClockSleep
IOPSMENR GPIOHRST LL_IOP_GRP1_EnableClockSleep
LL_IOP_GRP1_DisableClockSleep
Function name
__STATIC_INLINE void LL_IOP_GRP1_DisableClockSleep
(uint32_t Periphs)
Function description
Disable IOP peripherals clock during Low Power (Sleep) mode.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_IOP_GRP1_PERIPH_GPIOA
LL_IOP_GRP1_PERIPH_GPIOB
LL_IOP_GRP1_PERIPH_GPIOC
LL_IOP_GRP1_PERIPH_GPIOD (*)
LL_IOP_GRP1_PERIPH_GPIOE (*)
LL_IOP_GRP1_PERIPH_GPIOH (*)
Return values
None
Reference Manual to
LL API cross
reference:
IOPSMENR GPIOARST LL_IOP_GRP1_DisableClockSleep
IOPSMENR GPIOBRST LL_IOP_GRP1_DisableClockSleep
IOPSMENR GPIOCRST LL_IOP_GRP1_DisableClockSleep
IOPSMENR GPIODRST LL_IOP_GRP1_DisableClockSleep
IOPSMENR GPIOERST LL_IOP_GRP1_DisableClockSleep
IOPSMENR GPIOHRST LL_IOP_GRP1_DisableClockSleep
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54.2 BUS Firmware driver defines
54.2.1 BUS
AHB1 GRP1 PERIPH
LL_AHB1_GRP1_PERIPH_ALL
LL_AHB1_GRP1_PERIPH_DMA1
DMA1 clock enable
LL_AHB1_GRP1_PERIPH_MIF
MIF clock enable
LL_AHB1_GRP1_PERIPH_SRAM
Sleep Mode SRAM clock enable
LL_AHB1_GRP1_PERIPH_CRC
CRC clock enable
LL_AHB1_GRP1_PERIPH_TSC
TSC clock enable
LL_AHB1_GRP1_PERIPH_RNG
RNG clock enable
APB1 GRP1 PERIPH
LL_APB1_GRP1_PERIPH_ALL
LL_APB1_GRP1_PERIPH_TIM2
TIM2 clock enable
LL_APB1_GRP1_PERIPH_TIM3
TIM3 clock enable
LL_APB1_GRP1_PERIPH_TIM6
TIM6 clock enable
LL_APB1_GRP1_PERIPH_TIM7
TIM7 clock enable
LL_APB1_GRP1_PERIPH_LCD
LCD clock enable
LL_APB1_GRP1_PERIPH_WWDG
WWDG clock enable
LL_APB1_GRP1_PERIPH_SPI2
SPI2 clock enable
LL_APB1_GRP1_PERIPH_USART2
USART2 clock enable
LL_APB1_GRP1_PERIPH_LPUART1
LPUART1 clock enable
LL_APB1_GRP1_PERIPH_USART4
USART4 clock enable
LL_APB1_GRP1_PERIPH_USART5
USART5 clock enable
LL_APB1_GRP1_PERIPH_I2C1
I2C1 clock enable
LL_APB1_GRP1_PERIPH_I2C2
I2C2 clock enable
LL_APB1_GRP1_PERIPH_USB
USB clock enable
LL_APB1_GRP1_PERIPH_CRS
CRS clock enable
LL_APB1_GRP1_PERIPH_PWR
PWR clock enable
LL_APB1_GRP1_PERIPH_DAC1
DAC clock enable
LL_APB1_GRP1_PERIPH_I2C3
I2C3 clock enable
LL_APB1_GRP1_PERIPH_LPTIM1
LPTIM1 clock enable
APB2 GRP1 PERIPH
LL_APB2_GRP1_PERIPH_ALL
LL_APB2_GRP1_PERIPH_SYSCFG
SYSCFG clock enable
LL_APB2_GRP1_PERIPH_TIM21
TIM21 clock enable
LL_APB2_GRP1_PERIPH_TIM22
TIM22 clock enable
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LL_APB2_GRP1_PERIPH_FW
FireWall clock enable
LL_APB2_GRP1_PERIPH_ADC1
ADC1 clock enable
LL_APB2_GRP1_PERIPH_SPI1
SPI1 clock enable
LL_APB2_GRP1_PERIPH_USART1
USART1 clock enable
LL_APB2_GRP1_PERIPH_DBGMCU
DBGMCU clock enable
IOP GRP1 PERIPH
LL_IOP_GRP1_PERIPH_ALL
LL_IOP_GRP1_PERIPH_GPIOA
GPIO port A control
LL_IOP_GRP1_PERIPH_GPIOB
GPIO port B control
LL_IOP_GRP1_PERIPH_GPIOC
GPIO port C control
LL_IOP_GRP1_PERIPH_GPIOD
GPIO port D control
LL_IOP_GRP1_PERIPH_GPIOE
GPIO port H control
LL_IOP_GRP1_PERIPH_GPIOH
GPIO port H control
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55 LL COMP Generic Driver
55.1 COMP Firmware driver registers structures
55.1.1 LL_COMP_InitTypeDef
Data Fields
uint32_t PowerMode
uint32_t InputPlus
uint32_t InputMinus
uint32_t OutputPolarity
Field Documentation
uint32_t LL_COMP_InitTypeDef::PowerMode
Set comparator operating mode to adjust power and speed. This parameter can be a
value of COMP_LL_EC_POWERMODEThis feature can be modified afterwards using
unitary function LL_COMP_SetPowerMode().
uint32_t LL_COMP_InitTypeDef::InputPlus
Set comparator input plus (non-inverting input). This parameter can be a value of
COMP_LL_EC_INPUT_PLUSThis feature can be modified afterwards using unitary
function LL_COMP_SetInputPlus().
uint32_t LL_COMP_InitTypeDef::InputMinus
Set comparator input minus (inverting input). This parameter can be a value of
COMP_LL_EC_INPUT_MINUSThis feature can be modified afterwards using unitary
function LL_COMP_SetInputMinus().
uint32_t LL_COMP_InitTypeDef::OutputPolarity
Set comparator output polarity. This parameter can be a value of
COMP_LL_EC_OUTPUT_POLARITYThis feature can be modified afterwards using
unitary function LL_COMP_SetOutputPolarity().
55.2 COMP Firmware driver API description
55.2.1 Detailed description of functions
LL_COMP_SetCommonWindowMode
Function
name
__STATIC_INLINE void LL_COMP_SetCommonWindowMode
(COMP_Common_TypeDef * COMPxy_COMMON, uint32_t
WindowMode)
Function
description
Set window mode of a pair of comparators instances (2 consecutive COMP
instances odd and even COMP<x> and COMP<x+1>).
Parameters
COMPxy_COMMON: Comparator common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_COMP_COMMON_INSTANCE() )
WindowMode: This parameter can be one of the following values:
LL_COMP_WINDOWMODE_DISABLE
LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
Return
values
None
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Reference
Manual to LL
API cross
reference:
COMP1_CSR COMP1WM LL_COMP_SetCommonWindowMode
LL_COMP_GetCommonWindowMode
Function
name
__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowMode
(COMP_Common_TypeDef * COMPxy_COMMON)
Function
description
Get window mode of a pair of comparators instances (2 consecutive COMP
instances odd and even COMP<x> and COMP<x+1>).
Parameters
COMPxy_COMMON: Comparator common instance (can be set
directly from CMSIS definition or by using helper macro
__LL_COMP_COMMON_INSTANCE() )
Return
values
Returned: value can be one of the following values:
LL_COMP_WINDOWMODE_DISABLE
LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
Reference
Manual to
LL API cross
reference:
COMP1_CSR COMP1WM LL_COMP_GetCommonWindowMode
LL_COMP_SetPowerMode
Function name
__STATIC_INLINE void LL_COMP_SetPowerMode
(COMP_TypeDef * COMPx, uint32_t PowerMode)
Function description
Set comparator instance operating mode to adjust power and
speed.
Parameters
COMPx: Comparator instance
PowerMode: This parameter can be one of the following
values: (1) Available only on COMP instance: COMP2.
LL_COMP_POWERMODE_MEDIUMSPEED (1)
LL_COMP_POWERMODE_ULTRALOWPOWER (1)
Return values
None
Reference Manual to
LL API cross
reference:
COMP2_CSR COMP2SPEED LL_COMP_SetPowerMode
LL_COMP_GetPowerMode
Function name
__STATIC_INLINE uint32_t LL_COMP_GetPowerMode
(COMP_TypeDef * COMPx)
Function description
Get comparator instance operating mode to adjust power and
speed.
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values: (1)
Available only on COMP instance: COMP2.
LL_COMP_POWERMODE_MEDIUMSPEED (1)
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LL_COMP_POWERMODE_ULTRALOWPOWER (1)
Notes
Available only on COMP instance: COMP2.
Reference Manual to
LL API cross
reference:
COMP2_CSR COMP2SPEED LL_COMP_GetPowerMode
LL_COMP_ConfigInputs
Function name
__STATIC_INLINE void LL_COMP_ConfigInputs
(COMP_TypeDef * COMPx, uint32_t InputMinus, uint32_t
InputPlus)
Function description
Set comparator inputs minus (inverting) and plus (non-inverting).
Parameters
COMPx: Comparator instance
InputMinus: This parameter can be one of the following
values:
LL_COMP_INPUT_MINUS_VREFINT
LL_COMP_INPUT_MINUS_IO1
LL_COMP_INPUT_MINUS_DAC1_CH1
LL_COMP_INPUT_MINUS_DAC1_CH2
LL_COMP_INPUT_MINUS_1_4VREFINT
LL_COMP_INPUT_MINUS_1_2VREFINT
LL_COMP_INPUT_MINUS_3_4VREFINT
LL_COMP_INPUT_MINUS_IO2
InputPlus: This parameter can be one of the following
values: (1) Available only on COMP instance: COMP2. (2)
Available only on devices STM32L0 category 1.
LL_COMP_INPUT_PLUS_IO1 (1)
LL_COMP_INPUT_PLUS_IO2 (1)
LL_COMP_INPUT_PLUS_IO3 (1)
LL_COMP_INPUT_PLUS_IO4 (1)
LL_COMP_INPUT_PLUS_IO5 (1)
LL_COMP_INPUT_PLUS_IO6 (1)(2)
Return values
None
Notes
This function shall only be used for COMP2. For setting
COMP1 input it is recommended to use
LL_COMP_SetInputMinus() Plus (non-inverting) input is not
configurable on COMP1. Using this function for COMP1 will
corrupt COMP1WM register
On this STM32 serie, specificity if using COMP instance
COMP2 with COMP input based on VrefInt (VrefInt or
subdivision of VrefInt): scaler bridge is based on VrefInt and
requires to enable path from VrefInt (refer to literal
SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP).
Reference Manual to
LL API cross
reference:
COMP2_CSR COMP2INNSEL LL_COMP_ConfigInputs
COMP2_CSR COMP2INPSEL LL_COMP_ConfigInputs
LL COMP Generic Driver
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LL_COMP_SetInputPlus
Function name
__STATIC_INLINE void LL_COMP_SetInputPlus
(COMP_TypeDef * COMPx, uint32_t InputPlus)
Function description
Set comparator input plus (non-inverting).
Parameters
COMPx: Comparator instance
InputPlus: This parameter can be one of the following
values: (1) Available only on COMP instance: COMP2. (2)
Available only on devices STM32L0 category 1.
LL_COMP_INPUT_PLUS_IO1 (1)
LL_COMP_INPUT_PLUS_IO2 (1)
LL_COMP_INPUT_PLUS_IO3 (1)
LL_COMP_INPUT_PLUS_IO4 (1)
LL_COMP_INPUT_PLUS_IO5 (1)
LL_COMP_INPUT_PLUS_IO6 (1)(2)
Return values
None
Notes
Only COMP2 allows to set the input plus (non-inverting). For
COMP1 it is always PA1 IO, except when Windows Mode is
selected.
Reference Manual to
LL API cross
reference:
COMP2_CSR COMP2INPSEL LL_COMP_SetInputPlus
LL_COMP_GetInputPlus
Function name
__STATIC_INLINE uint32_t LL_COMP_GetInputPlus
(COMP_TypeDef * COMPx)
Function description
Get comparator input plus (non-inverting).
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values: (1)
Available only on COMP instance: COMP2. (2) Available only
on devices STM32L0 category 1.
LL_COMP_INPUT_PLUS_IO1 (1)
LL_COMP_INPUT_PLUS_IO2 (1)
LL_COMP_INPUT_PLUS_IO3 (1)
LL_COMP_INPUT_PLUS_IO4 (1)
LL_COMP_INPUT_PLUS_IO5 (1)
LL_COMP_INPUT_PLUS_IO6 (1)(2)
Notes
Only COMP2 allows to set the input plus (non-inverting). For
COMP1 it is always PA1 IO, except when Windows Mode is
selected.
Reference Manual to
LL API cross
reference:
COMP2_CSR COMP2INPSEL LL_COMP_GetInputPlus
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LL_COMP_SetInputMinus
Function name
__STATIC_INLINE void LL_COMP_SetInputMinus
(COMP_TypeDef * COMPx, uint32_t InputMinus)
Function description
Set comparator input minus (inverting).
Parameters
COMPx: Comparator instance
InputMinus: This parameter can be one of the following
values: (*) Available only on COMP instance: COMP2.
LL_COMP_INPUT_MINUS_VREFINT
LL_COMP_INPUT_MINUS_IO1
LL_COMP_INPUT_MINUS_DAC1_CH1
LL_COMP_INPUT_MINUS_DAC1_CH2
LL_COMP_INPUT_MINUS_1_4VREFINT (*)
LL_COMP_INPUT_MINUS_1_2VREFINT (*)
LL_COMP_INPUT_MINUS_3_4VREFINT (*)
LL_COMP_INPUT_MINUS_IO2 (*)
Return values
None
Notes
In case of comparator input selected to be connected to IO:
GPIO pins are specific to each comparator instance. Refer to
description of parameters or to reference manual.
On this STM32 serie, specificity if using COMP instance
COMP2 with COMP input based on VrefInt (VrefInt or
subdivision of VrefInt): scaler bridge is based on VrefInt and
requires to enable path from VrefInt (refer to literal
SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP).
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1INNSEL LL_COMP_SetInputMinus
COMP2_CSR COMP2INNSEL LL_COMP_SetInputMinus
LL_COMP_GetInputMinus
Function name
__STATIC_INLINE uint32_t LL_COMP_GetInputMinus
(COMP_TypeDef * COMPx)
Function description
Get comparator input minus (inverting).
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values: (*)
Available only on COMP instance: COMP2.
LL_COMP_INPUT_MINUS_VREFINT
LL_COMP_INPUT_MINUS_IO1
LL_COMP_INPUT_MINUS_DAC1_CH1
LL_COMP_INPUT_MINUS_DAC1_CH2
LL_COMP_INPUT_MINUS_1_4VREFINT (*)
LL_COMP_INPUT_MINUS_1_2VREFINT (*)
LL_COMP_INPUT_MINUS_3_4VREFINT (*)
LL_COMP_INPUT_MINUS_IO2 (*)
Notes
In case of comparator input selected to be connected to IO:
GPIO pins are specific to each comparator instance. Refer to
description of parameters or to reference manual.
Reference Manual to
COMP1_CSR COMP1INNSEL LL_COMP_GetInputMinus
LL COMP Generic Driver
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COMP2_CSR COMP2INNSEL LL_COMP_GetInputMinus
LL_COMP_SetOutputLPTIM
Function name
__STATIC_INLINE void LL_COMP_SetOutputLPTIM
(COMP_TypeDef * COMPx, uint32_t OutputLptim)
Function description
Set comparator output LPTIM.
Parameters
COMPx: Comparator instance
OutputLptim: This parameter can be one of the following
values: (*) Available only on COMP instance: COMP1.
LL_COMP_OUTPUT_LPTIM1_IN1_COMP1 (*)
LL_COMP_OUTPUT_LPTIM1_IN1_COMP2 (**)
LL_COMP_OUTPUT_LPTIM1_IN2_COMP2 (**)
(**) Available only on COMP instance: COMP2.
Return values
None
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1LPTIMIN1
LL_COMP_SetOutputLPTIM
COMP2_CSR COMP2LPTIMIN1
LL_COMP_SetOutputLPTIM
COMP2_CSR COMP2LPTIMIN2
LL_COMP_SetOutputLPTIM
LL_COMP_GetOutputLPTIM
Function name
__STATIC_INLINE uint32_t LL_COMP_GetOutputLPTIM
(COMP_TypeDef * COMPx)
Function description
Get comparator output LPTIM.
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values: (*)
Available only on COMP instance: COMP1.
LL_COMP_OUTPUT_LPTIM1_IN1_COMP1 (*)
LL_COMP_OUTPUT_LPTIM1_IN1_COMP2 (**)
LL_COMP_OUTPUT_LPTIM1_IN2_COMP2 (**)
(**) Available only on COMP instance: COMP2.
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1LPTIMIN1
LL_COMP_GetOutputLPTIM
COMP2_CSR COMP2LPTIMIN1
LL_COMP_GetOutputLPTIM
COMP2_CSR COMP2LPTIMIN2
LL_COMP_GetOutputLPTIM
LL_COMP_SetOutputPolarity
Function name
__STATIC_INLINE void LL_COMP_SetOutputPolarity
(COMP_TypeDef * COMPx, uint32_t OutputPolarity)
Function description
Set comparator instance output polarity.
Parameters
COMPx: Comparator instance
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OutputPolarity: This parameter can be one of the following
values:
LL_COMP_OUTPUTPOL_NONINVERTED
LL_COMP_OUTPUTPOL_INVERTED
Return values
None
Reference Manual to
LL API cross
reference:
COMP COMP1POLARITY LL_COMP_SetOutputPolarity
LL_COMP_GetOutputPolarity
Function name
__STATIC_INLINE uint32_t LL_COMP_GetOutputPolarity
(COMP_TypeDef * COMPx)
Function description
Get comparator instance output polarity.
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values:
LL_COMP_OUTPUTPOL_NONINVERTED
LL_COMP_OUTPUTPOL_INVERTED
Reference Manual to
LL API cross
reference:
COMP COMP1POLARITY LL_COMP_GetOutputPolarity
LL_COMP_Enable
Function name
__STATIC_INLINE void LL_COMP_Enable (COMP_TypeDef *
COMPx)
Function description
Enable comparator instance.
Parameters
COMPx: Comparator instance
Return values
None
Notes
After enable from off state, comparator requires a delay to
reach reach propagation delay specification. Refer to device
datasheet, parameter "tSTART".
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1EN LL_COMP_Enable
COMP2_CSR COMP2EN LL_COMP_Enable
LL_COMP_Disable
Function name
__STATIC_INLINE void LL_COMP_Disable (COMP_TypeDef *
COMPx)
Function description
Disable comparator instance.
Parameters
COMPx: Comparator instance
Return values
None
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1EN LL_COMP_Disable
COMP2_CSR COMP2EN LL_COMP_Disable
LL COMP Generic Driver
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LL_COMP_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_COMP_IsEnabled
(COMP_TypeDef * COMPx)
Function description
Get comparator enable state (0: COMP is disabled, 1: COMP is
enabled)
Parameters
COMPx: Comparator instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1EN LL_COMP_IsEnabled
COMP2_CSR COMP2EN LL_COMP_IsEnabled
LL_COMP_Lock
Function name
__STATIC_INLINE void LL_COMP_Lock (COMP_TypeDef *
COMPx)
Function description
Lock comparator instance.
Parameters
COMPx: Comparator instance
Return values
None
Notes
Once locked, comparator configuration can be accessed in
read-only.
The only way to unlock the comparator is a device hardware
reset.
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1LOCK LL_COMP_Lock
COMP2_CSR COMP2LOCK LL_COMP_Lock
LL_COMP_IsLocked
Function name
__STATIC_INLINE uint32_t LL_COMP_IsLocked
(COMP_TypeDef * COMPx)
Function description
Get comparator lock state (0: COMP is unlocked, 1: COMP is
locked).
Parameters
COMPx: Comparator instance
Return values
State: of bit (1 or 0).
Notes
Once locked, comparator configuration can be accessed in
read-only.
The only way to unlock the comparator is a device hardware
reset.
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1LOCK LL_COMP_IsLocked
COMP2_CSR COMP2LOCK LL_COMP_IsLocked
LL_COMP_ReadOutputLevel
Function name
__STATIC_INLINE uint32_t LL_COMP_ReadOutputLevel
(COMP_TypeDef * COMPx)
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Function description
Read comparator instance output level.
Parameters
COMPx: Comparator instance
Return values
Returned: value can be one of the following values:
LL_COMP_OUTPUT_LEVEL_LOW
LL_COMP_OUTPUT_LEVEL_HIGH
Notes
The comparator output level depends on the selected polarity
(Refer to function LL_COMP_SetOutputPolarity()). If the
comparator polarity is not inverted: Comparator output is low
when the input plus is at a lower voltage than the input
minusComparator output is high when the input plus is at a
higher voltage than the input minus If the comparator polarity
is inverted:Comparator output is high when the input plus is at
a lower voltage than the input minusComparator output is low
when the input plus is at a higher voltage than the input minus
Reference Manual to
LL API cross
reference:
COMP1_CSR COMP1VALUE LL_COMP_ReadOutputLevel
COMP2_CSR COMP2VALUE LL_COMP_ReadOutputLevel
LL_COMP_DeInit
Function name
ErrorStatus LL_COMP_DeInit (COMP_TypeDef * COMPx)
Function description
De-initialize registers of the selected COMP instance to their
default reset values.
Parameters
COMPx: COMP instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: COMP registers are de-initialized
ERROR: COMP registers are not de-initialized
Notes
If comparator is locked, de-initialization by software is not
possible. The only way to unlock the comparator is a device
hardware reset.
LL_COMP_Init
Function name
ErrorStatus LL_COMP_Init (COMP_TypeDef * COMPx,
LL_COMP_InitTypeDef * COMP_InitStruct)
Function description
Initialize some features of COMP instance.
Parameters
COMPx: COMP instance
COMP_InitStruct: Pointer to a LL_COMP_InitTypeDef
structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: COMP registers are initialized
ERROR: COMP registers are not initialized
Notes
This function configures features of the selected COMP
instance. Some features are also available at scope COMP
common instance (common to several COMP instances).
Refer to functions having argument "COMPxy_COMMON" as
parameter.
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LL_COMP_StructInit
Function name
void LL_COMP_StructInit (LL_COMP_InitTypeDef *
COMP_InitStruct)
Function description
Set each LL_COMP_InitTypeDef field to default value.
Parameters
COMP_InitStruct: pointer to a LL_COMP_InitTypeDef
structure whose fields will be set to default values.
Return values
None
55.3 COMP Firmware driver defines
55.3.1 COMP
Comparator common modes - Window mode
LL_COMP_WINDOWMODE_DISABLE
Window mode disable:
Comparators 1 and 2
are independent
LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
Window mode enable:
Comparators instances
pair COMP1 and
COMP2 have their
input plus connected
together. The common
input is COMP1 input
plus (COMP2 input plus
is no more accessible).
Definitions of COMP hardware constraints delays
LL_COMP_DELAY_STARTUP_US
Delay for COMP startup time
LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US
Delay for COMP voltage scaler
stabilization time
Comparator inputs - Input minus (input inverting) selection
LL_COMP_INPUT_MINUS_1_4VREFINT
Comparator input minus connected to 1/4
VrefInt (specifity of COMP2 related to path to
enable via SYSCFG: refer to comment in
function
LL_COMP_INPUT_MINUS_1_2VREFINT
Comparator input minus connected to 1/2
VrefInt (specifity of COMP2 related to path to
enable via SYSCFG: refer to comment in
function
LL_COMP_INPUT_MINUS_3_4VREFINT
Comparator input minus connected to 3/4
VrefInt (specifity of COMP2 related to path to
enable via SYSCFG: refer to comment in
function
LL_COMP_INPUT_MINUS_VREFINT
Comparator input minus connected to VrefInt
(specifity of COMP2 related to path to enable
via SYSCFG: refer to comment in function
LL_COMP_INPUT_MINUS_DAC1_CH1
Comparator input minus connected to DAC1
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channel 1 (DAC_OUT1)
LL_COMP_INPUT_MINUS_DAC1_CH2
Comparator input minus connected to DAC1
channel 2 (DAC_OUT2)
LL_COMP_INPUT_MINUS_IO1
Comparator input minus connected to IO1 (pin
PA0 for COMP1, pin PA2 for COMP2)
LL_COMP_INPUT_MINUS_IO2
Comparator input minus connected to IO2 (pin
PB3 for COMP2) (specific to COMP instance:
COMP2)
Comparator inputs - Input plus (input non-inverting) selection
LL_COMP_INPUT_PLUS_IO1
Comparator input plus connected to IO1 (pin PA1 for
COMP1, pin PA3 for COMP2)
LL_COMP_INPUT_PLUS_IO2
Comparator input plus connected to IO2 (pin PB4 for
COMP2) (specific to COMP instance: COMP2)
LL_COMP_INPUT_PLUS_IO3
Comparator input plus connected to IO3 (pin PA5 for
COMP2) (specific to COMP instance: COMP2)
LL_COMP_INPUT_PLUS_IO4
Comparator input plus connected to IO4 (pin PB6 for
COMP2) (specific to COMP instance: COMP2)
LL_COMP_INPUT_PLUS_IO5
Comparator input plus connected to IO5 (pin PB7 for
COMP2) (specific to COMP instance: COMP2)
Comparator output - Output level
LL_COMP_OUTPUT_LEVEL_LOW
Comparator output level low (if the polarity is not
inverted, otherwise to be complemented)
LL_COMP_OUTPUT_LEVEL_HIGH
Comparator output level high (if the polarity is not
inverted, otherwise to be complemented)
Comparator output - Output polarity
LL_COMP_OUTPUTPOL_NONINVERTED
COMP output polarity is not inverted:
comparator output is high when the plus
(non-inverting) input is at a higher voltage
than the minus (inverting) input
LL_COMP_OUTPUTPOL_INVERTED
COMP output polarity is inverted: comparator
output is low when the plus (non-inverting)
input is at a lower voltage than the minus
(inverting) input
Comparator output - Output selection specific to LPTIM peripheral
LL_COMP_OUTPUT_LPTIM1_IN1_COMP1
COMP output connected to TIM2 input
capture 4
LL_COMP_OUTPUT_LPTIM1_IN1_COMP2
COMP output connected to TIM2 input
capture 4
LL_COMP_OUTPUT_LPTIM1_IN2_COMP2
COMP output connected to TIM2 input
capture 4
Comparator modes - Power mode
LL_COMP_POWERMODE_ULTRALOWPOWER
COMP power mode to low speed
(specific to COMP instance: COMP2)
LL_COMP_POWERMODE_MEDIUMSPEED
COMP power mode to fast speed
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(specific to COMP instance: COMP2)
COMP helper macro
__LL_COMP_COMMON_INSTANCE
Description:
Helper macro to select the COMP common
instance to which is belonging the selected
COMP instance.
Parameters:
__COMPx__: COMP instance
Return value:
COMP: common instance or value "0" if there
is no COMP common instance.
Notes:
COMP common register instance can be used
to set parameters common to several COMP
instances. Refer to functions having argument
"COMPxy_COMMON" as parameter.
Common write and read registers macro
LL_COMP_WriteReg
Description:
Write a value in COMP register.
Parameters:
__INSTANCE__: comparator instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_COMP_ReadReg
Description:
Read a value in COMP register.
Parameters:
__INSTANCE__: comparator instance
__REG__: Register to be read
Return value:
Register: value
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56 LL CORTEX Generic Driver
56.1 CORTEX Firmware driver API description
56.1.1 Detailed description of functions
LL_SYSTICK_IsActiveCounterFlag
Function name
__STATIC_INLINE uint32_t LL_SYSTICK_IsActiveCounterFlag
(void )
Function description
This function checks if the Systick counter flag is active or not.
Return values
State: of bit (1 or 0).
Notes
It can be used in timeout function on application side.
Reference Manual to
LL API cross
reference:
STK_CTRL COUNTFLAG LL_SYSTICK_IsActiveCounterFlag
LL_SYSTICK_SetClkSource
Function name
__STATIC_INLINE void LL_SYSTICK_SetClkSource (uint32_t
Source)
Function description
Configures the SysTick clock source.
Parameters
Source: This parameter can be one of the following values:
LL_SYSTICK_CLKSOURCE_HCLK_DIV8
LL_SYSTICK_CLKSOURCE_HCLK
Return values
None
Reference Manual to
LL API cross
reference:
STK_CTRL CLKSOURCE LL_SYSTICK_SetClkSource
LL_SYSTICK_GetClkSource
Function name
__STATIC_INLINE uint32_t LL_SYSTICK_GetClkSource (void )
Function description
Get the SysTick clock source.
Return values
Returned: value can be one of the following values:
LL_SYSTICK_CLKSOURCE_HCLK_DIV8
LL_SYSTICK_CLKSOURCE_HCLK
Reference Manual to
LL API cross
reference:
STK_CTRL CLKSOURCE LL_SYSTICK_GetClkSource
LL_SYSTICK_EnableIT
Function name
__STATIC_INLINE void LL_SYSTICK_EnableIT (void )
Function description
Enable SysTick exception request.
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Return values
None
Reference Manual to
LL API cross
reference:
STK_CTRL TICKINT LL_SYSTICK_EnableIT
LL_SYSTICK_DisableIT
Function name
__STATIC_INLINE void LL_SYSTICK_DisableIT (void )
Function description
Disable SysTick exception request.
Return values
None
Reference Manual to
LL API cross
reference:
STK_CTRL TICKINT LL_SYSTICK_DisableIT
LL_SYSTICK_IsEnabledIT
Function name
__STATIC_INLINE uint32_t LL_SYSTICK_IsEnabledIT (void )
Function description
Checks if the SYSTICK interrupt is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
STK_CTRL TICKINT LL_SYSTICK_IsEnabledIT
LL_LPM_EnableSleep
Function name
__STATIC_INLINE void LL_LPM_EnableSleep (void )
Function description
Processor uses sleep as its low power mode.
Return values
None
Reference Manual to
LL API cross
reference:
SCB_SCR SLEEPDEEP LL_LPM_EnableSleep
LL_LPM_EnableDeepSleep
Function name
__STATIC_INLINE void LL_LPM_EnableDeepSleep (void )
Function description
Processor uses deep sleep as its low power mode.
Return values
None
Reference Manual to
LL API cross
reference:
SCB_SCR SLEEPDEEP LL_LPM_EnableDeepSleep
LL_LPM_EnableSleepOnExit
Function name
__STATIC_INLINE void LL_LPM_EnableSleepOnExit (void )
Function description
Configures sleep-on-exit when returning from Handler mode to
Thread mode.
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Return values
None
Notes
Setting this bit to 1 enables an interrupt-driven application to
avoid returning to an empty main application.
Reference Manual to
LL API cross
reference:
SCB_SCR SLEEPONEXIT LL_LPM_EnableSleepOnExit
LL_LPM_DisableSleepOnExit
Function name
__STATIC_INLINE void LL_LPM_DisableSleepOnExit (void )
Function description
Do not sleep when returning to Thread mode.
Return values
None
Reference Manual to
LL API cross
reference:
SCB_SCR SLEEPONEXIT LL_LPM_DisableSleepOnExit
LL_LPM_EnableEventOnPend
Function name
__STATIC_INLINE void LL_LPM_EnableEventOnPend (void )
Function description
Enabled events and all interrupts, including disabled interrupts,
can wakeup the processor.
Return values
None
Reference Manual to
LL API cross
reference:
SCB_SCR SEVEONPEND LL_LPM_EnableEventOnPend
LL_LPM_DisableEventOnPend
Function name
__STATIC_INLINE void LL_LPM_DisableEventOnPend (void )
Function description
Only enabled interrupts or events can wakeup the processor,
disabled interrupts are excluded.
Return values
None
Reference Manual to
LL API cross
reference:
SCB_SCR SEVEONPEND LL_LPM_DisableEventOnPend
LL_CPUID_GetImplementer
Function name
__STATIC_INLINE uint32_t LL_CPUID_GetImplementer (void )
Function description
Get Implementer code.
Return values
Value: should be equal to 0x41 for ARM
Reference Manual to
LL API cross
reference:
SCB_CPUID IMPLEMENTER LL_CPUID_GetImplementer
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LL_CPUID_GetVariant
Function name
__STATIC_INLINE uint32_t LL_CPUID_GetVariant (void )
Function description
Get Variant number (The r value in the rnpn product revision
identifier)
Return values
Value: between 0 and 255 (0x0: revision 0)
Reference Manual to
LL API cross
reference:
SCB_CPUID VARIANT LL_CPUID_GetVariant
LL_CPUID_GetArchitecture
Function name
__STATIC_INLINE uint32_t LL_CPUID_GetArchitecture (void )
Function description
Get Architecture number.
Return values
Value: should be equal to 0xC for Cortex-M0+ devices
Reference Manual to
LL API cross
reference:
SCB_CPUID ARCHITECTURE LL_CPUID_GetArchitecture
LL_CPUID_GetParNo
Function name
__STATIC_INLINE uint32_t LL_CPUID_GetParNo (void )
Function description
Get Part number.
Return values
Value: should be equal to 0xC60 for Cortex-M0+
Reference Manual to
LL API cross
reference:
SCB_CPUID PARTNO LL_CPUID_GetParNo
LL_CPUID_GetRevision
Function name
__STATIC_INLINE uint32_t LL_CPUID_GetRevision (void )
Function description
Get Revision number (The p value in the rnpn product revision
identifier, indicates patch release)
Return values
Value: between 0 and 255 (0x1: patch 1)
Reference Manual to
LL API cross
reference:
SCB_CPUID REVISION LL_CPUID_GetRevision
LL_MPU_Enable
Function name
__STATIC_INLINE void LL_MPU_Enable (uint32_t Options)
Function description
Enable MPU with input options.
Parameters
Options: This parameter can be one of the following values:
LL_MPU_CTRL_HFNMI_PRIVDEF_NONE
LL_MPU_CTRL_HARDFAULT_NMI
LL_MPU_CTRL_PRIVILEGED_DEFAULT
LL_MPU_CTRL_HFNMI_PRIVDEF
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Return values
None
Reference Manual to
LL API cross
reference:
MPU_CTRL ENABLE LL_MPU_Enable
LL_MPU_Disable
Function name
__STATIC_INLINE void LL_MPU_Disable (void )
Function description
Disable MPU.
Return values
None
Reference Manual to
LL API cross
reference:
MPU_CTRL ENABLE LL_MPU_Disable
LL_MPU_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_MPU_IsEnabled (void )
Function description
Check if MPU is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
MPU_CTRL ENABLE LL_MPU_IsEnabled
LL_MPU_EnableRegion
Function name
__STATIC_INLINE void LL_MPU_EnableRegion (uint32_t
Region)
Function description
Enable a MPU region.
Parameters
Region: This parameter can be one of the following values:
LL_MPU_REGION_NUMBER0
LL_MPU_REGION_NUMBER1
LL_MPU_REGION_NUMBER2
LL_MPU_REGION_NUMBER3
LL_MPU_REGION_NUMBER4
LL_MPU_REGION_NUMBER5
LL_MPU_REGION_NUMBER6
LL_MPU_REGION_NUMBER7
Return values
None
Reference Manual to
LL API cross
reference:
MPU_RASR ENABLE LL_MPU_EnableRegion
LL_MPU_ConfigRegion
Function name
__STATIC_INLINE void LL_MPU_ConfigRegion (uint32_t
Region, uint32_t SubRegionDisable, uint32_t Address,
uint32_t Attributes)
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Function description
Configure and enable a region.
Parameters
Region: This parameter can be one of the following values:
LL_MPU_REGION_NUMBER0
LL_MPU_REGION_NUMBER1
LL_MPU_REGION_NUMBER2
LL_MPU_REGION_NUMBER3
LL_MPU_REGION_NUMBER4
LL_MPU_REGION_NUMBER5
LL_MPU_REGION_NUMBER6
LL_MPU_REGION_NUMBER7
Address: Value of region base address
SubRegionDisable: Sub-region disable value between
Min_Data = 0x00 and Max_Data = 0xFF
Attributes: This parameter can be a combination of the
following values:
LL_MPU_REGION_SIZE_32B or
LL_MPU_REGION_SIZE_64B or
LL_MPU_REGION_SIZE_128B or
LL_MPU_REGION_SIZE_256B or
LL_MPU_REGION_SIZE_512B or
LL_MPU_REGION_SIZE_1KB or
LL_MPU_REGION_SIZE_2KB or
LL_MPU_REGION_SIZE_4KB or
LL_MPU_REGION_SIZE_8KB or
LL_MPU_REGION_SIZE_16KB or
LL_MPU_REGION_SIZE_32KB or
LL_MPU_REGION_SIZE_64KB or
LL_MPU_REGION_SIZE_128KB or
LL_MPU_REGION_SIZE_256KB or
LL_MPU_REGION_SIZE_512KB or
LL_MPU_REGION_SIZE_1MB or
LL_MPU_REGION_SIZE_2MB or
LL_MPU_REGION_SIZE_4MB or
LL_MPU_REGION_SIZE_8MB or
LL_MPU_REGION_SIZE_16MB or
LL_MPU_REGION_SIZE_32MB or
LL_MPU_REGION_SIZE_64MB or
LL_MPU_REGION_SIZE_128MB or
LL_MPU_REGION_SIZE_256MB or
LL_MPU_REGION_SIZE_512MB or
LL_MPU_REGION_SIZE_1GB or
LL_MPU_REGION_SIZE_2GB or
LL_MPU_REGION_SIZE_4GB
LL_MPU_REGION_NO_ACCESS or
LL_MPU_REGION_PRIV_RW or
LL_MPU_REGION_PRIV_RW_URO or
LL_MPU_REGION_FULL_ACCESS or
LL_MPU_REGION_PRIV_RO or
LL_MPU_REGION_PRIV_RO_URO
LL_MPU_TEX_LEVEL0 or LL_MPU_TEX_LEVEL1 or
LL_MPU_TEX_LEVEL2 or LL_MPU_TEX_LEVEL4
LL_MPU_INSTRUCTION_ACCESS_ENABLE or
LL_MPU_INSTRUCTION_ACCESS_DISABLE
LL_MPU_ACCESS_SHAREABLE or
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LL_MPU_ACCESS_NOT_SHAREABLE
LL_MPU_ACCESS_CACHEABLE or
LL_MPU_ACCESS_NOT_CACHEABLE
LL_MPU_ACCESS_BUFFERABLE or
LL_MPU_ACCESS_NOT_BUFFERABLE
Return values
None
Reference Manual to
LL API cross
reference:
MPU_RNR REGION LL_MPU_ConfigRegion
MPU_RBAR REGION LL_MPU_ConfigRegion
MPU_RBAR ADDR LL_MPU_ConfigRegion
MPU_RASR XN LL_MPU_ConfigRegion
MPU_RASR AP LL_MPU_ConfigRegion
MPU_RASR S LL_MPU_ConfigRegion
MPU_RASR C LL_MPU_ConfigRegion
MPU_RASR B LL_MPU_ConfigRegion
MPU_RASR SIZE LL_MPU_ConfigRegion
LL_MPU_DisableRegion
Function name
__STATIC_INLINE void LL_MPU_DisableRegion (uint32_t
Region)
Function description
Disable a region.
Parameters
Region: This parameter can be one of the following values:
LL_MPU_REGION_NUMBER0
LL_MPU_REGION_NUMBER1
LL_MPU_REGION_NUMBER2
LL_MPU_REGION_NUMBER3
LL_MPU_REGION_NUMBER4
LL_MPU_REGION_NUMBER5
LL_MPU_REGION_NUMBER6
LL_MPU_REGION_NUMBER7
Return values
None
Reference Manual to
LL API cross
reference:
MPU_RNR REGION LL_MPU_DisableRegion
MPU_RASR ENABLE LL_MPU_DisableRegion
56.2 CORTEX Firmware driver defines
56.2.1 CORTEX
MPU Bufferable Access
LL_MPU_ACCESS_BUFFERABLE
Bufferable memory attribute
LL_MPU_ACCESS_NOT_BUFFERABLE
Not Bufferable memory attribute
MPU Cacheable Access
LL_MPU_ACCESS_CACHEABLE
Cacheable memory attribute
LL_MPU_ACCESS_NOT_CACHEABLE
Not Cacheable memory attribute
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SYSTICK Clock Source
LL_SYSTICK_CLKSOURCE_HCLK_DIV8
AHB clock divided by 8 selected as SysTick
clock source.
LL_SYSTICK_CLKSOURCE_HCLK
AHB clock selected as SysTick clock source.
MPU Control
LL_MPU_CTRL_HFNMI_PRIVDEF_NONE
Disable NMI and privileged SW access
LL_MPU_CTRL_HARDFAULT_NMI
Enables the operation of MPU during hard
fault, NMI, and FAULTMASK handlers
LL_MPU_CTRL_PRIVILEGED_DEFAULT
Enable privileged software access to default
memory map
LL_MPU_CTRL_HFNMI_PRIVDEF
Enable NMI and privileged SW access
MPU Instruction Access
LL_MPU_INSTRUCTION_ACCESS_ENABLE
Instruction fetches enabled
LL_MPU_INSTRUCTION_ACCESS_DISABLE
Instruction fetches disabled
MPU Region Number
LL_MPU_REGION_NUMBER0
REGION Number 0
LL_MPU_REGION_NUMBER1
REGION Number 1
LL_MPU_REGION_NUMBER2
REGION Number 2
LL_MPU_REGION_NUMBER3
REGION Number 3
LL_MPU_REGION_NUMBER4
REGION Number 4
LL_MPU_REGION_NUMBER5
REGION Number 5
LL_MPU_REGION_NUMBER6
REGION Number 6
LL_MPU_REGION_NUMBER7
REGION Number 7
MPU Region Privileges
LL_MPU_REGION_NO_ACCESS
No access
LL_MPU_REGION_PRIV_RW
RW privileged (privileged access only)
LL_MPU_REGION_PRIV_RW_URO
RW privileged - RO user (Write in a user program
generates a fault)
LL_MPU_REGION_FULL_ACCESS
RW privileged & user (Full access)
LL_MPU_REGION_PRIV_RO
RO privileged (privileged read only)
LL_MPU_REGION_PRIV_RO_URO
RO privileged & user (read only)
MPU Region Size
LL_MPU_REGION_SIZE_32B
32B Size of the MPU protection region
LL_MPU_REGION_SIZE_64B
64B Size of the MPU protection region
LL_MPU_REGION_SIZE_128B
128B Size of the MPU protection region
LL_MPU_REGION_SIZE_256B
256B Size of the MPU protection region
LL_MPU_REGION_SIZE_512B
512B Size of the MPU protection region
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LL_MPU_REGION_SIZE_1KB
1KB Size of the MPU protection region
LL_MPU_REGION_SIZE_2KB
2KB Size of the MPU protection region
LL_MPU_REGION_SIZE_4KB
4KB Size of the MPU protection region
LL_MPU_REGION_SIZE_8KB
8KB Size of the MPU protection region
LL_MPU_REGION_SIZE_16KB
16KB Size of the MPU protection region
LL_MPU_REGION_SIZE_32KB
32KB Size of the MPU protection region
LL_MPU_REGION_SIZE_64KB
64KB Size of the MPU protection region
LL_MPU_REGION_SIZE_128KB
128KB Size of the MPU protection region
LL_MPU_REGION_SIZE_256KB
256KB Size of the MPU protection region
LL_MPU_REGION_SIZE_512KB
512KB Size of the MPU protection region
LL_MPU_REGION_SIZE_1MB
1MB Size of the MPU protection region
LL_MPU_REGION_SIZE_2MB
2MB Size of the MPU protection region
LL_MPU_REGION_SIZE_4MB
4MB Size of the MPU protection region
LL_MPU_REGION_SIZE_8MB
8MB Size of the MPU protection region
LL_MPU_REGION_SIZE_16MB
16MB Size of the MPU protection region
LL_MPU_REGION_SIZE_32MB
32MB Size of the MPU protection region
LL_MPU_REGION_SIZE_64MB
64MB Size of the MPU protection region
LL_MPU_REGION_SIZE_128MB
128MB Size of the MPU protection region
LL_MPU_REGION_SIZE_256MB
256MB Size of the MPU protection region
LL_MPU_REGION_SIZE_512MB
512MB Size of the MPU protection region
LL_MPU_REGION_SIZE_1GB
1GB Size of the MPU protection region
LL_MPU_REGION_SIZE_2GB
2GB Size of the MPU protection region
LL_MPU_REGION_SIZE_4GB
4GB Size of the MPU protection region
MPU Shareable Access
LL_MPU_ACCESS_SHAREABLE
Shareable memory attribute
LL_MPU_ACCESS_NOT_SHAREABLE
Not Shareable memory attribute
MPU TEX Level
LL_MPU_TEX_LEVEL0
b000 for TEX bits
LL_MPU_TEX_LEVEL1
b001 for TEX bits
LL_MPU_TEX_LEVEL2
b010 for TEX bits
LL_MPU_TEX_LEVEL4
b100 for TEX bits
LL CRC Generic Driver
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57 LL CRC Generic Driver
57.1 CRC Firmware driver API description
57.1.1 Detailed description of functions
LL_CRC_ResetCRCCalculationUnit
Function name
__STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit
(CRC_TypeDef * CRCx)
Function description
Reset the CRC calculation unit.
Parameters
CRCx: CRC Instance
Return values
None
Notes
If Programmable Initial CRC value feature is available, also
set the Data Register to the value stored in the CRC_INIT
register, otherwise, reset Data Register to its default value.
Reference Manual to
LL API cross
reference:
CR RESET LL_CRC_ResetCRCCalculationUnit
LL_CRC_SetPolynomialSize
Function name
__STATIC_INLINE void LL_CRC_SetPolynomialSize
(CRC_TypeDef * CRCx, uint32_t PolySize)
Function description
Configure size of the polynomial.
Parameters
CRCx: CRC Instance
PolySize: This parameter can be one of the following values:
LL_CRC_POLYLENGTH_32B
LL_CRC_POLYLENGTH_16B
LL_CRC_POLYLENGTH_8B
LL_CRC_POLYLENGTH_7B
Return values
None
Reference Manual to
LL API cross
reference:
CR POLYSIZE LL_CRC_SetPolynomialSize
LL_CRC_GetPolynomialSize
Function name
__STATIC_INLINE uint32_t LL_CRC_GetPolynomialSize
(CRC_TypeDef * CRCx)
Function description
Return size of the polynomial.
Parameters
CRCx: CRC Instance
Return values
Returned: value can be one of the following values:
LL_CRC_POLYLENGTH_32B
LL_CRC_POLYLENGTH_16B
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LL_CRC_POLYLENGTH_8B
LL_CRC_POLYLENGTH_7B
Reference Manual to
LL API cross
reference:
CR POLYSIZE LL_CRC_GetPolynomialSize
LL_CRC_SetInputDataReverseMode
Function name
__STATIC_INLINE void LL_CRC_SetInputDataReverseMode
(CRC_TypeDef * CRCx, uint32_t ReverseMode)
Function description
Configure the reversal of the bit order of the input data.
Parameters
CRCx: CRC Instance
ReverseMode: This parameter can be one of the following
values:
LL_CRC_INDATA_REVERSE_NONE
LL_CRC_INDATA_REVERSE_BYTE
LL_CRC_INDATA_REVERSE_HALFWORD
LL_CRC_INDATA_REVERSE_WORD
Return values
None
Reference Manual to
LL API cross
reference:
CR REV_IN LL_CRC_SetInputDataReverseMode
LL_CRC_GetInputDataReverseMode
Function name
__STATIC_INLINE uint32_t
LL_CRC_GetInputDataReverseMode (CRC_TypeDef * CRCx)
Function description
Return type of reversal for input data bit order.
Parameters
CRCx: CRC Instance
Return values
Returned: value can be one of the following values:
LL_CRC_INDATA_REVERSE_NONE
LL_CRC_INDATA_REVERSE_BYTE
LL_CRC_INDATA_REVERSE_HALFWORD
LL_CRC_INDATA_REVERSE_WORD
Reference Manual to
LL API cross
reference:
CR REV_IN LL_CRC_GetInputDataReverseMode
LL_CRC_SetOutputDataReverseMode
Function name
__STATIC_INLINE void LL_CRC_SetOutputDataReverseMode
(CRC_TypeDef * CRCx, uint32_t ReverseMode)
Function description
Configure the reversal of the bit order of the Output data.
Parameters
CRCx: CRC Instance
ReverseMode: This parameter can be one of the following
values:
LL_CRC_OUTDATA_REVERSE_NONE
LL_CRC_OUTDATA_REVERSE_BIT
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Return values
None
Reference Manual to
LL API cross
reference:
CR REV_OUT LL_CRC_SetOutputDataReverseMode
LL_CRC_GetOutputDataReverseMode
Function name
__STATIC_INLINE uint32_t
LL_CRC_GetOutputDataReverseMode (CRC_TypeDef * CRCx)
Function description
Configure the reversal of the bit order of the Output data.
Parameters
CRCx: CRC Instance
Return values
Returned: value can be one of the following values:
LL_CRC_OUTDATA_REVERSE_NONE
LL_CRC_OUTDATA_REVERSE_BIT
Reference Manual to
LL API cross
reference:
CR REV_OUT LL_CRC_GetOutputDataReverseMode
LL_CRC_SetInitialData
Function name
__STATIC_INLINE void LL_CRC_SetInitialData (CRC_TypeDef
* CRCx, uint32_t InitCrc)
Function description
Initialize the Programmable initial CRC value.
Parameters
CRCx: CRC Instance
InitCrc: Value to be programmed in Programmable initial
CRC value register
Return values
None
Notes
If the CRC size is less than 32 bits, the least significant bits
are used to write the correct value
LL_CRC_DEFAULT_CRC_INITVALUE could be used as
value for InitCrc parameter.
Reference Manual to
LL API cross
reference:
INIT INIT LL_CRC_SetInitialData
LL_CRC_GetInitialData
Function name
__STATIC_INLINE uint32_t LL_CRC_GetInitialData
(CRC_TypeDef * CRCx)
Function description
Return current Initial CRC value.
Parameters
CRCx: CRC Instance
Return values
Value: programmed in Programmable initial CRC value
register
Notes
If the CRC size is less than 32 bits, the least significant bits
are used to read the correct value
Reference Manual to
INIT INIT LL_CRC_GetInitialData
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LL_CRC_SetPolynomialCoef
Function name
__STATIC_INLINE void LL_CRC_SetPolynomialCoef
(CRC_TypeDef * CRCx, uint32_t PolynomCoef)
Function description
Initialize the Programmable polynomial value (coefficients of the
polynomial to be used for CRC calculation).
Parameters
CRCx: CRC Instance
PolynomCoef: Value to be programmed in Programmable
Polynomial value register
Return values
None
Notes
LL_CRC_DEFAULT_CRC32_POLY could be used as value
for PolynomCoef parameter.
Please check Reference Manual and existing Errata Sheets,
regarding possible limitations for Polynomial values usage.
For example, for a polynomial of degree 7, X^7 + X^6 + X^5 +
X^2 + 1 is written 0x65
Reference Manual to
LL API cross
reference:
POL POL LL_CRC_SetPolynomialCoef
LL_CRC_GetPolynomialCoef
Function name
__STATIC_INLINE uint32_t LL_CRC_GetPolynomialCoef
(CRC_TypeDef * CRCx)
Function description
Return current Programmable polynomial value.
Parameters
CRCx: CRC Instance
Return values
Value: programmed in Programmable Polynomial value
register
Notes
Please check Reference Manual and existing Errata Sheets,
regarding possible limitations for Polynomial values usage.
For example, for a polynomial of degree 7, X^7 + X^6 + X^5 +
X^2 + 1 is written 0x65
Reference Manual to
LL API cross
reference:
POL POL LL_CRC_GetPolynomialCoef
LL_CRC_FeedData32
Function name
__STATIC_INLINE void LL_CRC_FeedData32 (CRC_TypeDef *
CRCx, uint32_t InData)
Function description
Write given 32-bit data to the CRC calculator.
Parameters
CRCx: CRC Instance
InData: value to be provided to CRC calculator between
between Min_Data=0 and Max_Data=0xFFFFFFFF
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Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_FeedData32
LL_CRC_FeedData16
Function name
__STATIC_INLINE void LL_CRC_FeedData16 (CRC_TypeDef *
CRCx, uint16_t InData)
Function description
Write given 16-bit data to the CRC calculator.
Parameters
CRCx: CRC Instance
InData: 16 bit value to be provided to CRC calculator
between between Min_Data=0 and Max_Data=0xFFFF
Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_FeedData16
LL_CRC_FeedData8
Function name
__STATIC_INLINE void LL_CRC_FeedData8 (CRC_TypeDef *
CRCx, uint8_t InData)
Function description
Write given 8-bit data to the CRC calculator.
Parameters
CRCx: CRC Instance
InData: 8 bit value to be provided to CRC calculator between
between Min_Data=0 and Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_FeedData8
LL_CRC_ReadData32
Function name
__STATIC_INLINE uint32_t LL_CRC_ReadData32
(CRC_TypeDef * CRCx)
Function description
Return current CRC calculation result.
Parameters
CRCx: CRC Instance
Return values
Current: CRC calculation result as stored in CRC_DR
register (32 bits).
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_ReadData32
LL_CRC_ReadData16
Function name
__STATIC_INLINE uint16_t LL_CRC_ReadData16
(CRC_TypeDef * CRCx)
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Function description
Return current CRC calculation result.
Parameters
CRCx: CRC Instance
Return values
Current: CRC calculation result as stored in CRC_DR
register (16 bits).
Notes
This function is expected to be used in a 16 bits CRC
polynomial size context.
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_ReadData16
LL_CRC_ReadData8
Function name
__STATIC_INLINE uint8_t LL_CRC_ReadData8 (CRC_TypeDef
* CRCx)
Function description
Return current CRC calculation result.
Parameters
CRCx: CRC Instance
Return values
Current: CRC calculation result as stored in CRC_DR
register (8 bits).
Notes
This function is expected to be used in a 8 bits CRC
polynomial size context.
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_ReadData8
LL_CRC_ReadData7
Function name
__STATIC_INLINE uint8_t LL_CRC_ReadData7 (CRC_TypeDef
* CRCx)
Function description
Return current CRC calculation result.
Parameters
CRCx: CRC Instance
Return values
Current: CRC calculation result as stored in CRC_DR
register (7 bits).
Notes
This function is expected to be used in a 7 bits CRC
polynomial size context.
Reference Manual to
LL API cross
reference:
DR DR LL_CRC_ReadData7
LL_CRC_Read_IDR
Function name
__STATIC_INLINE uint32_t LL_CRC_Read_IDR (CRC_TypeDef
* CRCx)
Function description
Return data stored in the Independent Data(IDR) register.
Parameters
CRCx: CRC Instance
Return values
Value: stored in CRC_IDR register (General-purpose 8-bit
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data register).
Notes
This register can be used as a temporary storage location for
one byte.
Reference Manual to
LL API cross
reference:
IDR IDR LL_CRC_Read_IDR
LL_CRC_Write_IDR
Function name
__STATIC_INLINE void LL_CRC_Write_IDR (CRC_TypeDef *
CRCx, uint32_t InData)
Function description
Store data in the Independent Data(IDR) register.
Parameters
CRCx: CRC Instance
InData: value to be stored in CRC_IDR register (8-bit)
between between Min_Data=0 and Max_Data=0xFF
Return values
None
Notes
This register can be used as a temporary storage location for
one byte.
Reference Manual to
LL API cross
reference:
IDR IDR LL_CRC_Write_IDR
LL_CRC_DeInit
Function name
ErrorStatus LL_CRC_DeInit (CRC_TypeDef * CRCx)
Function description
De-initialize CRC registers (Registers restored to their default
values).
Parameters
CRCx: CRC Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: CRC registers are de-initialized
ERROR: CRC registers are not de-initialized
57.2 CRC Firmware driver defines
57.2.1 CRC
Default CRC computation initialization value
LL_CRC_DEFAULT_CRC_INITVALUE
Default CRC computation initialization value
Default CRC generating polynomial value
LL_CRC_DEFAULT_CRC32_POLY
Default CRC generating polynomial value
Input Data Reverse
LL_CRC_INDATA_REVERSE_NONE
Input Data bit order not affected
LL_CRC_INDATA_REVERSE_BYTE
Input Data bit reversal done by byte
LL_CRC_INDATA_REVERSE_HALFWORD
Input Data bit reversal done by half-word
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LL_CRC_INDATA_REVERSE_WORD
Input Data bit reversal done by word
Output Data Reverse
LL_CRC_OUTDATA_REVERSE_NONE
Output Data bit order not affected
LL_CRC_OUTDATA_REVERSE_BIT
Output Data bit reversal done by bit
Polynomial length
LL_CRC_POLYLENGTH_32B
32 bits Polynomial size
LL_CRC_POLYLENGTH_16B
16 bits Polynomial size
LL_CRC_POLYLENGTH_8B
8 bits Polynomial size
LL_CRC_POLYLENGTH_7B
7 bits Polynomial size
Common Write and read registers Macros
LL_CRC_WriteReg
Description:
Write a value in CRC register.
Parameters:
__INSTANCE__: CRC Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_CRC_ReadReg
Description:
Read a value in CRC register.
Parameters:
__INSTANCE__: CRC Instance
__REG__: Register to be read
Return value:
Register: value
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58.1 CRS Firmware driver API description
58.1.1 Detailed description of functions
LL_CRS_EnableFreqErrorCounter
Function name
__STATIC_INLINE void LL_CRS_EnableFreqErrorCounter
(void )
Function description
Enable Frequency error counter.
Return values
None
Notes
When this bit is set, the CRS_CFGR register is write-
protected and cannot be modified
Reference Manual to
LL API cross
reference:
CR CEN LL_CRS_EnableFreqErrorCounter
LL_CRS_DisableFreqErrorCounter
Function name
__STATIC_INLINE void LL_CRS_DisableFreqErrorCounter
(void )
Function description
Disable Frequency error counter.
Return values
None
Reference Manual to
LL API cross
reference:
CR CEN LL_CRS_DisableFreqErrorCounter
LL_CRS_IsEnabledFreqErrorCounter
Function name
__STATIC_INLINE uint32_t
LL_CRS_IsEnabledFreqErrorCounter (void )
Function description
Check if Frequency error counter is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR CEN LL_CRS_IsEnabledFreqErrorCounter
LL_CRS_EnableAutoTrimming
Function name
__STATIC_INLINE void LL_CRS_EnableAutoTrimming (void )
Function description
Enable Automatic trimming counter.
Return values
None
Reference Manual to
LL API cross
CR AUTOTRIMEN LL_CRS_EnableAutoTrimming
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LL_CRS_DisableAutoTrimming
Function name
__STATIC_INLINE void LL_CRS_DisableAutoTrimming (void )
Function description
Disable Automatic trimming counter.
Return values
None
Reference Manual to
LL API cross
reference:
CR AUTOTRIMEN LL_CRS_DisableAutoTrimming
LL_CRS_IsEnabledAutoTrimming
Function name
__STATIC_INLINE uint32_t LL_CRS_IsEnabledAutoTrimming
(void )
Function description
Check if Automatic trimming is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR AUTOTRIMEN LL_CRS_IsEnabledAutoTrimming
LL_CRS_SetHSI48SmoothTrimming
Function name
__STATIC_INLINE void LL_CRS_SetHSI48SmoothTrimming
(uint32_t Value)
Function description
Set HSI48 oscillator smooth trimming.
Parameters
Value: a number between Min_Data = 0 and Max_Data = 63
Return values
None
Notes
When the AUTOTRIMEN bit is set, this field is controlled by
hardware and is read-only
Default value can be set thanks to
LL_CRS_HSI48CALIBRATION_DEFAULT
Reference Manual to
LL API cross
reference:
CR TRIM LL_CRS_SetHSI48SmoothTrimming
LL_CRS_GetHSI48SmoothTrimming
Function name
__STATIC_INLINE uint32_t
LL_CRS_GetHSI48SmoothTrimming (void )
Function description
Get HSI48 oscillator smooth trimming.
Return values
a: number between Min_Data = 0 and Max_Data = 63
Reference Manual to
LL API cross
reference:
CR TRIM LL_CRS_GetHSI48SmoothTrimming
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LL_CRS_SetReloadCounter
Function name
__STATIC_INLINE void LL_CRS_SetReloadCounter (uint32_t
Value)
Function description
Set counter reload value.
Parameters
Value: a number between Min_Data = 0 and Max_Data =
0xFFFF
Return values
None
Notes
Default value can be set thanks to
LL_CRS_RELOADVALUE_DEFAULT Otherwise it can be
calculated in using macro
__LL_CRS_CALC_CALCULATE_RELOADVALUE
(_FTARGET_, _FSYNC_)
Reference Manual to
LL API cross
reference:
CFGR RELOAD LL_CRS_SetReloadCounter
LL_CRS_GetReloadCounter
Function name
__STATIC_INLINE uint32_t LL_CRS_GetReloadCounter (void )
Function description
Get counter reload value.
Return values
a: number between Min_Data = 0 and Max_Data = 0xFFFF
Reference Manual to
LL API cross
reference:
CFGR RELOAD LL_CRS_GetReloadCounter
LL_CRS_SetFreqErrorLimit
Function name
__STATIC_INLINE void LL_CRS_SetFreqErrorLimit (uint32_t
Value)
Function description
Set frequency error limit.
Parameters
Value: a number between Min_Data = 0 and Max_Data =
255
Return values
None
Notes
Default value can be set thanks to
LL_CRS_ERRORLIMIT_DEFAULT
Reference Manual to
LL API cross
reference:
CFGR FELIM LL_CRS_SetFreqErrorLimit
LL_CRS_GetFreqErrorLimit
Function name
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorLimit (void )
Function description
Get frequency error limit.
Return values
A: number between Min_Data = 0 and Max_Data = 255
Reference Manual to
LL API cross
CFGR FELIM LL_CRS_GetFreqErrorLimit
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LL_CRS_SetSyncDivider
Function name
__STATIC_INLINE void LL_CRS_SetSyncDivider (uint32_t
Divider)
Function description
Set division factor for SYNC signal.
Parameters
Divider: This parameter can be one of the following values:
LL_CRS_SYNC_DIV_1
LL_CRS_SYNC_DIV_2
LL_CRS_SYNC_DIV_4
LL_CRS_SYNC_DIV_8
LL_CRS_SYNC_DIV_16
LL_CRS_SYNC_DIV_32
LL_CRS_SYNC_DIV_64
LL_CRS_SYNC_DIV_128
Return values
None
Reference Manual to
LL API cross
reference:
CFGR SYNCDIV LL_CRS_SetSyncDivider
LL_CRS_GetSyncDivider
Function name
__STATIC_INLINE uint32_t LL_CRS_GetSyncDivider (void )
Function description
Get division factor for SYNC signal.
Return values
Returned: value can be one of the following values:
LL_CRS_SYNC_DIV_1
LL_CRS_SYNC_DIV_2
LL_CRS_SYNC_DIV_4
LL_CRS_SYNC_DIV_8
LL_CRS_SYNC_DIV_16
LL_CRS_SYNC_DIV_32
LL_CRS_SYNC_DIV_64
LL_CRS_SYNC_DIV_128
Reference Manual to
LL API cross
reference:
CFGR SYNCDIV LL_CRS_GetSyncDivider
LL_CRS_SetSyncSignalSource
Function name
__STATIC_INLINE void LL_CRS_SetSyncSignalSource
(uint32_t Source)
Function description
Set SYNC signal source.
Parameters
Source: This parameter can be one of the following values:
LL_CRS_SYNC_SOURCE_GPIO
LL_CRS_SYNC_SOURCE_LSE
LL_CRS_SYNC_SOURCE_USB
Return values
None
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Reference Manual to
LL API cross
reference:
CFGR SYNCSRC LL_CRS_SetSyncSignalSource
LL_CRS_GetSyncSignalSource
Function name
__STATIC_INLINE uint32_t LL_CRS_GetSyncSignalSource
(void )
Function description
Get SYNC signal source.
Return values
Returned: value can be one of the following values:
LL_CRS_SYNC_SOURCE_GPIO
LL_CRS_SYNC_SOURCE_LSE
LL_CRS_SYNC_SOURCE_USB
Reference Manual to
LL API cross
reference:
CFGR SYNCSRC LL_CRS_GetSyncSignalSource
LL_CRS_SetSyncPolarity
Function name
__STATIC_INLINE void LL_CRS_SetSyncPolarity (uint32_t
Polarity)
Function description
Set input polarity for the SYNC signal source.
Parameters
Polarity: This parameter can be one of the following values:
LL_CRS_SYNC_POLARITY_RISING
LL_CRS_SYNC_POLARITY_FALLING
Return values
None
Reference Manual to
LL API cross
reference:
CFGR SYNCPOL LL_CRS_SetSyncPolarity
LL_CRS_GetSyncPolarity
Function name
__STATIC_INLINE uint32_t LL_CRS_GetSyncPolarity (void )
Function description
Get input polarity for the SYNC signal source.
Return values
Returned: value can be one of the following values:
LL_CRS_SYNC_POLARITY_RISING
LL_CRS_SYNC_POLARITY_FALLING
Reference Manual to
LL API cross
reference:
CFGR SYNCPOL LL_CRS_GetSyncPolarity
LL_CRS_ConfigSynchronization
Function name
__STATIC_INLINE void LL_CRS_ConfigSynchronization
(uint32_t HSI48CalibrationValue, uint32_t ErrorLimitValue,
uint32_t ReloadValue, uint32_t Settings)
Function description
Configure CRS for the synchronization.
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Parameters
HSI48CalibrationValue: a number between Min_Data = 0
and Max_Data = 63
ErrorLimitValue: a number between Min_Data = 0 and
Max_Data = 0xFFFF
ReloadValue: a number between Min_Data = 0 and
Max_Data = 255
Settings: This parameter can be a combination of the
following values:
LL_CRS_SYNC_DIV_1 or LL_CRS_SYNC_DIV_2 or
LL_CRS_SYNC_DIV_4 or LL_CRS_SYNC_DIV_8 or
LL_CRS_SYNC_DIV_16 or LL_CRS_SYNC_DIV_32 or
LL_CRS_SYNC_DIV_64 or LL_CRS_SYNC_DIV_128
LL_CRS_SYNC_SOURCE_GPIO or
LL_CRS_SYNC_SOURCE_LSE or
LL_CRS_SYNC_SOURCE_USB
LL_CRS_SYNC_POLARITY_RISING or
LL_CRS_SYNC_POLARITY_FALLING
Return values
None
Reference Manual to
LL API cross
reference:
CR TRIM LL_CRS_ConfigSynchronization
CFGR RELOAD LL_CRS_ConfigSynchronization
CFGR FELIM LL_CRS_ConfigSynchronization
CFGR SYNCDIV LL_CRS_ConfigSynchronization
CFGR SYNCSRC LL_CRS_ConfigSynchronization
CFGR SYNCPOL LL_CRS_ConfigSynchronization
LL_CRS_GenerateEvent_SWSYNC
Function name
__STATIC_INLINE void LL_CRS_GenerateEvent_SWSYNC
(void )
Function description
Generate software SYNC event.
Return values
None
Reference Manual to
LL API cross
reference:
CR SWSYNC LL_CRS_GenerateEvent_SWSYNC
LL_CRS_GetFreqErrorDirection
Function name
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorDirection
(void )
Function description
Get the frequency error direction latched in the time of the last
SYNC event.
Return values
Returned: value can be one of the following values:
LL_CRS_FREQ_ERROR_DIR_UP
LL_CRS_FREQ_ERROR_DIR_DOWN
Reference Manual to
LL API cross
reference:
ISR FEDIR LL_CRS_GetFreqErrorDirection
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LL_CRS_GetFreqErrorCapture
Function name
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorCapture
(void )
Function description
Get the frequency error counter value latched in the time of the
last SYNC event.
Return values
A: number between Min_Data = 0x0000 and Max_Data =
0xFFFF
Reference Manual to
LL API cross
reference:
ISR FECAP LL_CRS_GetFreqErrorCapture
LL_CRS_IsActiveFlag_SYNCOK
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCOK
(void )
Function description
Check if SYNC event OK signal occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SYNCOKF LL_CRS_IsActiveFlag_SYNCOK
LL_CRS_IsActiveFlag_SYNCWARN
Function name
__STATIC_INLINE uint32_t
LL_CRS_IsActiveFlag_SYNCWARN (void )
Function description
Check if SYNC warning signal occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SYNCWARNF LL_CRS_IsActiveFlag_SYNCWARN
LL_CRS_IsActiveFlag_ERR
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_ERR (void )
Function description
Check if Synchronization or trimming error signal occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ERRF LL_CRS_IsActiveFlag_ERR
LL_CRS_IsActiveFlag_ESYNC
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_ESYNC
(void )
Function description
Check if Expected SYNC signal occurred or not.
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
ISR ESYNCF LL_CRS_IsActiveFlag_ESYNC
LL_CRS_IsActiveFlag_SYNCERR
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCERR
(void )
Function description
Check if SYNC error signal occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SYNCERR LL_CRS_IsActiveFlag_SYNCERR
LL_CRS_IsActiveFlag_SYNCMISS
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCMISS
(void )
Function description
Check if SYNC missed error signal occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SYNCMISS LL_CRS_IsActiveFlag_SYNCMISS
LL_CRS_IsActiveFlag_TRIMOVF
Function name
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_TRIMOVF
(void )
Function description
Check if Trimming overflow or underflow occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TRIMOVF LL_CRS_IsActiveFlag_TRIMOVF
LL_CRS_ClearFlag_SYNCOK
Function name
__STATIC_INLINE void LL_CRS_ClearFlag_SYNCOK (void )
Function description
Clear the SYNC event OK flag.
Return values
None
Reference Manual to
LL API cross
reference:
ICR SYNCOKC LL_CRS_ClearFlag_SYNCOK
LL_CRS_ClearFlag_SYNCWARN
Function name
__STATIC_INLINE void LL_CRS_ClearFlag_SYNCWARN (void
)
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Function description
Clear the SYNC warning flag.
Return values
None
Reference Manual to
LL API cross
reference:
ICR SYNCWARNC LL_CRS_ClearFlag_SYNCWARN
LL_CRS_ClearFlag_ERR
Function name
__STATIC_INLINE void LL_CRS_ClearFlag_ERR (void )
Function description
Clear TRIMOVF, SYNCMISS and SYNCERR bits and
consequently also the ERR flag.
Return values
None
Reference Manual to
LL API cross
reference:
ICR ERRC LL_CRS_ClearFlag_ERR
LL_CRS_ClearFlag_ESYNC
Function name
__STATIC_INLINE void LL_CRS_ClearFlag_ESYNC (void )
Function description
Clear Expected SYNC flag.
Return values
None
Reference Manual to
LL API cross
reference:
ICR ESYNCC LL_CRS_ClearFlag_ESYNC
LL_CRS_EnableIT_SYNCOK
Function name
__STATIC_INLINE void LL_CRS_EnableIT_SYNCOK (void )
Function description
Enable SYNC event OK interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR SYNCOKIE LL_CRS_EnableIT_SYNCOK
LL_CRS_DisableIT_SYNCOK
Function name
__STATIC_INLINE void LL_CRS_DisableIT_SYNCOK (void )
Function description
Disable SYNC event OK interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR SYNCOKIE LL_CRS_DisableIT_SYNCOK
LL_CRS_IsEnabledIT_SYNCOK
Function name
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_SYNCOK
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(void )
Function description
Check if SYNC event OK interrupt is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR SYNCOKIE LL_CRS_IsEnabledIT_SYNCOK
LL_CRS_EnableIT_SYNCWARN
Function name
__STATIC_INLINE void LL_CRS_EnableIT_SYNCWARN (void )
Function description
Enable SYNC warning interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR SYNCWARNIE LL_CRS_EnableIT_SYNCWARN
LL_CRS_DisableIT_SYNCWARN
Function name
__STATIC_INLINE void LL_CRS_DisableIT_SYNCWARN (void
)
Function description
Disable SYNC warning interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR SYNCWARNIE LL_CRS_DisableIT_SYNCWARN
LL_CRS_IsEnabledIT_SYNCWARN
Function name
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_SYNCWARN
(void )
Function description
Check if SYNC warning interrupt is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR SYNCWARNIE LL_CRS_IsEnabledIT_SYNCWARN
LL_CRS_EnableIT_ERR
Function name
__STATIC_INLINE void LL_CRS_EnableIT_ERR (void )
Function description
Enable Synchronization or trimming error interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR ERRIE LL_CRS_EnableIT_ERR
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LL_CRS_DisableIT_ERR
Function name
__STATIC_INLINE void LL_CRS_DisableIT_ERR (void )
Function description
Disable Synchronization or trimming error interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR ERRIE LL_CRS_DisableIT_ERR
LL_CRS_IsEnabledIT_ERR
Function name
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_ERR (void )
Function description
Check if Synchronization or trimming error interrupt is enabled or
not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ERRIE LL_CRS_IsEnabledIT_ERR
LL_CRS_EnableIT_ESYNC
Function name
__STATIC_INLINE void LL_CRS_EnableIT_ESYNC (void )
Function description
Enable Expected SYNC interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR ESYNCIE LL_CRS_EnableIT_ESYNC
LL_CRS_DisableIT_ESYNC
Function name
__STATIC_INLINE void LL_CRS_DisableIT_ESYNC (void )
Function description
Disable Expected SYNC interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CR ESYNCIE LL_CRS_DisableIT_ESYNC
LL_CRS_IsEnabledIT_ESYNC
Function name
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_ESYNC
(void )
Function description
Check if Expected SYNC interrupt is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ESYNCIE LL_CRS_IsEnabledIT_ESYNC
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LL_CRS_DeInit
Function name
ErrorStatus LL_CRS_DeInit (void )
Function description
De-Initializes CRS peripheral registers to their default reset values.
Return values
An: ErrorStatus enumeration value:
SUCCESS: CRS registers are de-initialized
ERROR: not applicable
58.2 CRS Firmware driver defines
58.2.1 CRS
Default Values
LL_CRS_RELOADVALUE_DEFAULT
Notes:
The reset value of the RELOAD field
corresponds to a target frequency of 48
MHz and a synchronization signal
frequency of 1 kHz (SOF signal from
USB)
LL_CRS_ERRORLIMIT_DEFAULT
LL_CRS_HSI48CALIBRATION_DEFAULT
Notes:
The default value is 32, which
corresponds to the middle of the
trimming interval. The trimming step is
around 67 kHz between two consecutive
TRIM steps. A higher TRIM value
corresponds to a higher output frequency
Frequency Error Direction
LL_CRS_FREQ_ERROR_DIR_UP
Upcounting direction, the actual frequency is
above the target
LL_CRS_FREQ_ERROR_DIR_DOWN
Downcounting direction, the actual frequency is
below the target
Get Flags Defines
LL_CRS_ISR_SYNCOKF
LL_CRS_ISR_SYNCWARNF
LL_CRS_ISR_ERRF
LL_CRS_ISR_ESYNCF
LL_CRS_ISR_SYNCERR
LL_CRS_ISR_SYNCMISS
LL_CRS_ISR_TRIMOVF
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IT Defines
LL_CRS_CR_SYNCOKIE
LL_CRS_CR_SYNCWARNIE
LL_CRS_CR_ERRIE
LL_CRS_CR_ESYNCIE
Synchronization Signal Divider
LL_CRS_SYNC_DIV_1
Synchro Signal not divided (default)
LL_CRS_SYNC_DIV_2
Synchro Signal divided by 2
LL_CRS_SYNC_DIV_4
Synchro Signal divided by 4
LL_CRS_SYNC_DIV_8
Synchro Signal divided by 8
LL_CRS_SYNC_DIV_16
Synchro Signal divided by 16
LL_CRS_SYNC_DIV_32
Synchro Signal divided by 32
LL_CRS_SYNC_DIV_64
Synchro Signal divided by 64
LL_CRS_SYNC_DIV_128
Synchro Signal divided by 128
Synchronization Signal Polarity
LL_CRS_SYNC_POLARITY_RISING
Synchro Active on rising edge (default)
LL_CRS_SYNC_POLARITY_FALLING
Synchro Active on falling edge
Synchronization Signal Source
LL_CRS_SYNC_SOURCE_GPIO
Synchro Signal soucre GPIO
LL_CRS_SYNC_SOURCE_LSE
Synchro Signal source LSE
LL_CRS_SYNC_SOURCE_USB
Synchro Signal source USB SOF (default)
Exported_Macros_Calculate_Reload
__LL_CRS_CALC_CALCULATE_RELOADVALUE
Description:
Macro to calculate reload value
to be set in CRS register
according to target and sync
frequencies.
Parameters:
__FTARGET__: Target
frequency (value in Hz)
__FSYNC__: Synchronization
signal frequency (value in Hz)
Return value:
Reload: value (in Hz)
Notes:
The RELOAD value should be
selected according to the ratio
between the target frequency
and the frequency of the
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synchronization source after
prescaling. It is then decreased
by one in order to reach the
expected synchronization on the
zero value. The formula is the
following: RELOAD = (fTARGET
/ fSYNC) -1
Common Write and read registers Macros
LL_CRS_WriteReg
Description:
Write a value in CRS register.
Parameters:
__INSTANCE__: CRS Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_CRS_ReadReg
Description:
Read a value in CRS register.
Parameters:
__INSTANCE__: CRS Instance
__REG__: Register to be read
Return value:
Register: value
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59 LL DAC Generic Driver
59.1 DAC Firmware driver registers structures
59.1.1 LL_DAC_InitTypeDef
Data Fields
uint32_t TriggerSource
uint32_t WaveAutoGeneration
uint32_t WaveAutoGenerationConfig
uint32_t OutputBuffer
Field Documentation
uint32_t LL_DAC_InitTypeDef::TriggerSource
Set the conversion trigger source for the selected DAC channel: internal (SW start) or
from external IP (timer event, external interrupt line). This parameter can be a value of
DAC_LL_EC_TRIGGER_SOURCEThis feature can be modified afterwards using
unitary function LL_DAC_SetTriggerSource().
uint32_t LL_DAC_InitTypeDef::WaveAutoGeneration
Set the waveform automatic generation mode for the selected DAC channel. This
parameter can be a value of DAC_LL_EC_WAVE_AUTO_GENERATION_MODEThis
feature can be modified afterwards using unitary function
LL_DAC_SetWaveAutoGeneration().
uint32_t LL_DAC_InitTypeDef::WaveAutoGenerationConfig
Set the waveform automatic generation mode for the selected DAC channel. If
waveform automatic generation mode is set to noise, this parameter can be a value of
DAC_LL_EC_WAVE_NOISE_LFSR_UNMASK_BITS If waveform automatic
generation mode is set to triangle, this parameter can be a value of
DAC_LL_EC_WAVE_TRIANGLE_AMPLITUDE
Note:If waveform automatic generation mode is disabled, this parameter is discarded.
This feature can be modified afterwards using unitary function
LL_DAC_SetWaveNoiseLFSR() or LL_DAC_SetWaveTriangleAmplitude(),
depending on the wave automatic generation selected.
uint32_t LL_DAC_InitTypeDef::OutputBuffer
Set the output buffer for the selected DAC channel. This parameter can be a value of
DAC_LL_EC_OUTPUT_BUFFERThis feature can be modified afterwards using
unitary function LL_DAC_SetOutputBuffer().
59.2 DAC Firmware driver API description
59.2.1 Detailed description of functions
LL_DAC_SetTriggerSource
Function name
__STATIC_INLINE void LL_DAC_SetTriggerSource
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t
TriggerSource)
Function description
Set the conversion trigger source for the selected DAC channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
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values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
TriggerSource: This parameter can be one of the following
values:
LL_DAC_TRIG_SOFTWARE
LL_DAC_TRIG_EXT_TIM2_TRGO
LL_DAC_TRIG_EXT_TIM3_TRGO
LL_DAC_TRIG_EXT_TIM3_CH3
LL_DAC_TRIG_EXT_TIM6_TRGO
LL_DAC_TRIG_EXT_TIM7_TRGO
LL_DAC_TRIG_EXT_TIM21_TRGO
LL_DAC_TRIG_EXT_EXTI_LINE9
Return values
None
Notes
For conversion trigger source to be effective, DAC trigger
must be enabled using function LL_DAC_EnableTrigger().
To set conversion trigger source, DAC channel must be
disabled. Otherwise, the setting is discarded.
Availability of parameters of trigger sources from timer
depends on timers availability on the selected device.
Reference Manual to
LL API cross
reference:
CR TSEL1 LL_DAC_SetTriggerSource
CR TSEL2 LL_DAC_SetTriggerSource
LL_DAC_GetTriggerSource
Function name
__STATIC_INLINE uint32_t LL_DAC_GetTriggerSource
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Get the conversion trigger source for the selected DAC channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
Returned: value can be one of the following values:
LL_DAC_TRIG_SOFTWARE
LL_DAC_TRIG_EXT_TIM2_TRGO
LL_DAC_TRIG_EXT_TIM3_TRGO
LL_DAC_TRIG_EXT_TIM3_CH3
LL_DAC_TRIG_EXT_TIM6_TRGO
LL_DAC_TRIG_EXT_TIM7_TRGO
LL_DAC_TRIG_EXT_TIM21_TRGO
LL_DAC_TRIG_EXT_EXTI_LINE9
Notes
For conversion trigger source to be effective, DAC trigger
must be enabled using function LL_DAC_EnableTrigger().
Availability of parameters of trigger sources from timer
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depends on timers availability on the selected device.
Reference Manual to
LL API cross
reference:
CR TSEL1 LL_DAC_GetTriggerSource
CR TSEL2 LL_DAC_GetTriggerSource
LL_DAC_SetWaveAutoGeneration
Function name
__STATIC_INLINE void LL_DAC_SetWaveAutoGeneration
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t
WaveAutoGeneration)
Function description
Set the waveform automatic generation mode for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
WaveAutoGeneration: This parameter can be one of the
following values:
LL_DAC_WAVE_AUTO_GENERATION_NONE
LL_DAC_WAVE_AUTO_GENERATION_NOISE
LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
Return values
None
Reference Manual to
LL API cross
reference:
CR WAVE1 LL_DAC_SetWaveAutoGeneration
CR WAVE2 LL_DAC_SetWaveAutoGeneration
LL_DAC_GetWaveAutoGeneration
Function name
__STATIC_INLINE uint32_t LL_DAC_GetWaveAutoGeneration
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Get the waveform automatic generation mode for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
Returned: value can be one of the following values:
LL_DAC_WAVE_AUTO_GENERATION_NONE
LL_DAC_WAVE_AUTO_GENERATION_NOISE
LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
Reference Manual to
LL API cross
reference:
CR WAVE1 LL_DAC_GetWaveAutoGeneration
CR WAVE2 LL_DAC_GetWaveAutoGeneration
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LL_DAC_SetWaveNoiseLFSR
Function name
__STATIC_INLINE void LL_DAC_SetWaveNoiseLFSR
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t
NoiseLFSRMask)
Function description
Set the noise waveform generation for the selected DAC channel:
Noise mode and parameters LFSR (linear feedback shift register).
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
NoiseLFSRMask: This parameter can be one of the
following values:
LL_DAC_NOISE_LFSR_UNMASK_BIT0
LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
Return values
None
Notes
For wave generation to be effective, DAC channel wave
generation mode must be enabled using function
LL_DAC_SetWaveAutoGeneration().
This setting can be set when the selected DAC channel is
disabled (otherwise, the setting operation is ignored).
Reference Manual to
LL API cross
reference:
CR MAMP1 LL_DAC_SetWaveNoiseLFSR
CR MAMP2 LL_DAC_SetWaveNoiseLFSR
LL_DAC_GetWaveNoiseLFSR
Function name
__STATIC_INLINE uint32_t LL_DAC_GetWaveNoiseLFSR
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Set the noise waveform generation for the selected DAC channel:
Noise mode and parameters LFSR (linear feedback shift register).
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
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LL_DAC_CHANNEL_2 (1)
Return values
Returned: value can be one of the following values:
LL_DAC_NOISE_LFSR_UNMASK_BIT0
LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
Reference Manual to
LL API cross
reference:
CR MAMP1 LL_DAC_GetWaveNoiseLFSR
CR MAMP2 LL_DAC_GetWaveNoiseLFSR
LL_DAC_SetWaveTriangleAmplitude
Function name
__STATIC_INLINE void LL_DAC_SetWaveTriangleAmplitude
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t
TriangleAmplitude)
Function description
Set the triangle waveform generation for the selected DAC
channel: triangle mode and amplitude.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
TriangleAmplitude: This parameter can be one of the
following values:
LL_DAC_TRIANGLE_AMPLITUDE_1
LL_DAC_TRIANGLE_AMPLITUDE_3
LL_DAC_TRIANGLE_AMPLITUDE_7
LL_DAC_TRIANGLE_AMPLITUDE_15
LL_DAC_TRIANGLE_AMPLITUDE_31
LL_DAC_TRIANGLE_AMPLITUDE_63
LL_DAC_TRIANGLE_AMPLITUDE_127
LL_DAC_TRIANGLE_AMPLITUDE_255
LL_DAC_TRIANGLE_AMPLITUDE_511
LL_DAC_TRIANGLE_AMPLITUDE_1023
LL_DAC_TRIANGLE_AMPLITUDE_2047
LL_DAC_TRIANGLE_AMPLITUDE_4095
Return values
None
Notes
For wave generation to be effective, DAC channel wave
generation mode must be enabled using function
LL_DAC_SetWaveAutoGeneration().
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This setting can be set when the selected DAC channel is
disabled (otherwise, the setting operation is ignored).
Reference Manual to
LL API cross
reference:
CR MAMP1 LL_DAC_SetWaveTriangleAmplitude
CR MAMP2 LL_DAC_SetWaveTriangleAmplitude
LL_DAC_GetWaveTriangleAmplitude
Function name
__STATIC_INLINE uint32_t
LL_DAC_GetWaveTriangleAmplitude (DAC_TypeDef * DACx,
uint32_t DAC_Channel)
Function description
Set the triangle waveform generation for the selected DAC
channel: triangle mode and amplitude.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
Returned: value can be one of the following values:
LL_DAC_TRIANGLE_AMPLITUDE_1
LL_DAC_TRIANGLE_AMPLITUDE_3
LL_DAC_TRIANGLE_AMPLITUDE_7
LL_DAC_TRIANGLE_AMPLITUDE_15
LL_DAC_TRIANGLE_AMPLITUDE_31
LL_DAC_TRIANGLE_AMPLITUDE_63
LL_DAC_TRIANGLE_AMPLITUDE_127
LL_DAC_TRIANGLE_AMPLITUDE_255
LL_DAC_TRIANGLE_AMPLITUDE_511
LL_DAC_TRIANGLE_AMPLITUDE_1023
LL_DAC_TRIANGLE_AMPLITUDE_2047
LL_DAC_TRIANGLE_AMPLITUDE_4095
Reference Manual to
LL API cross
reference:
CR MAMP1 LL_DAC_GetWaveTriangleAmplitude
CR MAMP2 LL_DAC_GetWaveTriangleAmplitude
LL_DAC_SetOutputBuffer
Function name
__STATIC_INLINE void LL_DAC_SetOutputBuffer
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t
OutputBuffer)
Function description
Set the output buffer for the selected DAC channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
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OutputBuffer: This parameter can be one of the following
values:
LL_DAC_OUTPUT_BUFFER_ENABLE
LL_DAC_OUTPUT_BUFFER_DISABLE
Return values
None
Reference Manual to
LL API cross
reference:
CR BOFF1 LL_DAC_SetOutputBuffer
CR BOFF2 LL_DAC_SetOutputBuffer
LL_DAC_GetOutputBuffer
Function name
__STATIC_INLINE uint32_t LL_DAC_GetOutputBuffer
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Get the output buffer state for the selected DAC channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
Returned: value can be one of the following values:
LL_DAC_OUTPUT_BUFFER_ENABLE
LL_DAC_OUTPUT_BUFFER_DISABLE
Reference Manual to
LL API cross
reference:
CR BOFF1 LL_DAC_GetOutputBuffer
CR BOFF2 LL_DAC_GetOutputBuffer
LL_DAC_EnableDMAReq
Function name
__STATIC_INLINE void LL_DAC_EnableDMAReq
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Enable DAC DMA transfer request of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Notes
To configure DMA source address (peripheral address), use
function LL_DAC_DMA_GetRegAddr().
Reference Manual to
LL API cross
reference:
CR DMAEN1 LL_DAC_EnableDMAReq
CR DMAEN2 LL_DAC_EnableDMAReq
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LL_DAC_DisableDMAReq
Function name
__STATIC_INLINE void LL_DAC_DisableDMAReq
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Disable DAC DMA transfer request of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Notes
To configure DMA source address (peripheral address), use
function LL_DAC_DMA_GetRegAddr().
Reference Manual to
LL API cross
reference:
CR DMAEN1 LL_DAC_DisableDMAReq
CR DMAEN2 LL_DAC_DisableDMAReq
LL_DAC_IsDMAReqEnabled
Function name
__STATIC_INLINE uint32_t LL_DAC_IsDMAReqEnabled
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Get DAC DMA transfer request state of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR DMAEN1 LL_DAC_IsDMAReqEnabled
CR DMAEN2 LL_DAC_IsDMAReqEnabled
LL_DAC_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_DAC_DMA_GetRegAddr
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t Register)
Function
description
Function to help to configure DMA transfer to DAC: retrieve the DAC
register address from DAC instance and a list of DAC registers
intended to be used (most commonly) with DMA transfer.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on all
devices. Refer to device datasheet for channels availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
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Register: This parameter can be one of the following values:
LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED
LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED
LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED
Return values
DAC: register address
Notes
These DAC registers are data holding registers: when DAC
conversion is requested, DAC generates a DMA transfer request
to have data available in DAC data holding registers.
This macro is intended to be used with LL DMA driver, refer to
function "LL_DMA_ConfigAddresses()". Example:
LL_DMA_ConfigAddresses(DMA1, LL_DMA_CHANNEL_1,
(uint32_t)&< array or variable >,
LL_DAC_DMA_GetRegAddr(DAC1, LL_DAC_CHANNEL_1,
LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED),
LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
Reference
Manual to LL API
cross reference:
DHR12R1 DACC1DHR LL_DAC_DMA_GetRegAddr
DHR12L1 DACC1DHR LL_DAC_DMA_GetRegAddr
DHR8R1 DACC1DHR LL_DAC_DMA_GetRegAddr
DHR12R2 DACC2DHR LL_DAC_DMA_GetRegAddr
DHR12L2 DACC2DHR LL_DAC_DMA_GetRegAddr
DHR8R2 DACC2DHR LL_DAC_DMA_GetRegAddr
LL_DAC_Enable
Function name
__STATIC_INLINE void LL_DAC_Enable (DAC_TypeDef *
DACx, uint32_t DAC_Channel)
Function description
Enable DAC selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Notes
After enable from off state, DAC channel requires a delay for
output voltage to reach accuracy +/- 1 LSB. Refer to device
datasheet, parameter "tWAKEUP".
Reference Manual to
LL API cross
reference:
CR EN1 LL_DAC_Enable
CR EN2 LL_DAC_Enable
LL_DAC_Disable
Function name
__STATIC_INLINE void LL_DAC_Disable (DAC_TypeDef *
DACx, uint32_t DAC_Channel)
Function description
Disable DAC selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
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values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Reference Manual to
LL API cross
reference:
CR EN1 LL_DAC_Disable
CR EN2 LL_DAC_Disable
LL_DAC_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_DAC_IsEnabled (DAC_TypeDef
* DACx, uint32_t DAC_Channel)
Function description
Get DAC enable state of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR EN1 LL_DAC_IsEnabled
CR EN2 LL_DAC_IsEnabled
LL_DAC_EnableTrigger
Function name
__STATIC_INLINE void LL_DAC_EnableTrigger
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Enable DAC trigger of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Notes
- If DAC trigger is disabled, DAC conversion is performed
automatically once the data holding register is updated, using
functions "LL_DAC_ConvertData{8; 12}{Right; Left}
Aligned()": LL_DAC_ConvertData12RightAligned(), ... If DAC
trigger is enabled, DAC conversion is performed only when a
hardware of software trigger event is occurring. Select trigger
source using function LL_DAC_SetTriggerSource().
Reference Manual to
LL API cross
CR TEN1 LL_DAC_EnableTrigger
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CR TEN2 LL_DAC_EnableTrigger
LL_DAC_DisableTrigger
Function name
__STATIC_INLINE void LL_DAC_DisableTrigger
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Disable DAC trigger of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
None
Reference Manual to
LL API cross
reference:
CR TEN1 LL_DAC_DisableTrigger
CR TEN2 LL_DAC_DisableTrigger
LL_DAC_IsTriggerEnabled
Function name
__STATIC_INLINE uint32_t LL_DAC_IsTriggerEnabled
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Get DAC trigger state of the selected channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR TEN1 LL_DAC_IsTriggerEnabled
CR TEN2 LL_DAC_IsTriggerEnabled
LL_DAC_TrigSWConversion
Function name
__STATIC_INLINE void LL_DAC_TrigSWConversion
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Trig DAC conversion by software for the selected DAC channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can a combination of the
following values: (1) On this STM32 serie, parameter not
available on all devices. Refer to device datasheet for
channels availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
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Return values
None
Notes
Preliminarily, DAC trigger must be set to software trigger
using function LL_DAC_SetTriggerSource() with parameter
"LL_DAC_TRIGGER_SOFTWARE". and DAC trigger must be
enabled using function LL_DAC_EnableTrigger().
For devices featuring DAC with 2 channels: this function can
perform a SW start of both DAC channels simultaneously.
Two channels can be selected as parameter. Example:
(LL_DAC_CHANNEL_1 | LL_DAC_CHANNEL_2)
Reference Manual to
LL API cross
reference:
SWTRIGR SWTRIG1 LL_DAC_TrigSWConversion
SWTRIGR SWTRIG2 LL_DAC_TrigSWConversion
LL_DAC_ConvertData12RightAligned
Function name
__STATIC_INLINE void LL_DAC_ConvertData12RightAligned
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t Data)
Function description
Set the data to be loaded in the data holding register in format 12
bits left alignment (LSB aligned on bit 0), for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Data: Value between Min_Data=0x000 and
Max_Data=0xFFF
Return values
None
Reference Manual to
LL API cross
reference:
DHR12R1 DACC1DHR LL_DAC_ConvertData12RightAligned
DHR12R2 DACC2DHR
LL_DAC_ConvertData12RightAligned
LL_DAC_ConvertData12LeftAligned
Function name
__STATIC_INLINE void LL_DAC_ConvertData12LeftAligned
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t Data)
Function description
Set the data to be loaded in the data holding register in format 12
bits left alignment (MSB aligned on bit 15), for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Data: Value between Min_Data=0x000 and
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Return values
None
Reference Manual to
LL API cross
reference:
DHR12L1 DACC1DHR LL_DAC_ConvertData12LeftAligned
DHR12L2 DACC2DHR LL_DAC_ConvertData12LeftAligned
LL_DAC_ConvertData8RightAligned
Function name
__STATIC_INLINE void LL_DAC_ConvertData8RightAligned
(DAC_TypeDef * DACx, uint32_t DAC_Channel, uint32_t Data)
Function description
Set the data to be loaded in the data holding register in format 8
bits left alignment (LSB aligned on bit 0), for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Data: Value between Min_Data=0x00 and Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
DHR8R1 DACC1DHR LL_DAC_ConvertData8RightAligned
DHR8R2 DACC2DHR LL_DAC_ConvertData8RightAligned
LL_DAC_ConvertDualData12RightAligned
Function name
__STATIC_INLINE void
LL_DAC_ConvertDualData12RightAligned (DAC_TypeDef *
DACx, uint32_t DataChannel1, uint32_t DataChannel2)
Function description
Set the data to be loaded in the data holding register in format 12
bits left alignment (LSB aligned on bit 0), for both DAC channels.
Parameters
DACx: DAC instance
DataChannel1: Value between Min_Data=0x000 and
Max_Data=0xFFF
DataChannel2: Value between Min_Data=0x000 and
Max_Data=0xFFF
Return values
None
Reference Manual to
LL API cross
reference:
DHR12RD DACC1DHR
LL_DAC_ConvertDualData12RightAligned
DHR12RD DACC2DHR
LL_DAC_ConvertDualData12RightAligned
LL_DAC_ConvertDualData12LeftAligned
Function name
__STATIC_INLINE void
LL_DAC_ConvertDualData12LeftAligned (DAC_TypeDef *
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DACx, uint32_t DataChannel1, uint32_t DataChannel2)
Function description
Set the data to be loaded in the data holding register in format 12
bits left alignment (MSB aligned on bit 15), for both DAC channels.
Parameters
DACx: DAC instance
DataChannel1: Value between Min_Data=0x000 and
Max_Data=0xFFF
DataChannel2: Value between Min_Data=0x000 and
Max_Data=0xFFF
Return values
None
Reference Manual to
LL API cross
reference:
DHR12LD DACC1DHR
LL_DAC_ConvertDualData12LeftAligned
DHR12LD DACC2DHR
LL_DAC_ConvertDualData12LeftAligned
LL_DAC_ConvertDualData8RightAligned
Function name
__STATIC_INLINE void
LL_DAC_ConvertDualData8RightAligned (DAC_TypeDef *
DACx, uint32_t DataChannel1, uint32_t DataChannel2)
Function description
Set the data to be loaded in the data holding register in format 8
bits left alignment (LSB aligned on bit 0), for both DAC channels.
Parameters
DACx: DAC instance
DataChannel1: Value between Min_Data=0x00 and
Max_Data=0xFF
DataChannel2: Value between Min_Data=0x00 and
Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
DHR8RD DACC1DHR
LL_DAC_ConvertDualData8RightAligned
DHR8RD DACC2DHR
LL_DAC_ConvertDualData8RightAligned
LL_DAC_RetrieveOutputData
Function name
__STATIC_INLINE uint32_t LL_DAC_RetrieveOutputData
(DAC_TypeDef * DACx, uint32_t DAC_Channel)
Function description
Retrieve output data currently generated for the selected DAC
channel.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return values
Value: between Min_Data=0x000 and Max_Data=0xFFF
Notes
Whatever alignment and resolution settings (using functions
"LL_DAC_ConvertData{8; 12}{Right; Left} Aligned()":
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LL_DAC_ConvertData12RightAligned(), ...), output data
format is 12 bits right aligned (LSB aligned on bit 0).
Reference Manual to
LL API cross
reference:
DOR1 DACC1DOR LL_DAC_RetrieveOutputData
DOR2 DACC2DOR LL_DAC_RetrieveOutputData
LL_DAC_IsActiveFlag_DMAUDR1
Function name
__STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR1
(DAC_TypeDef * DACx)
Function description
Get DAC underrun flag for DAC channel 1.
Parameters
DACx: DAC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR DMAUDR1 LL_DAC_IsActiveFlag_DMAUDR1
LL_DAC_IsActiveFlag_DMAUDR2
Function name
__STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR2
(DAC_TypeDef * DACx)
Function description
Get DAC underrun flag for DAC channel 2.
Parameters
DACx: DAC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR DMAUDR2 LL_DAC_IsActiveFlag_DMAUDR2
LL_DAC_ClearFlag_DMAUDR1
Function name
__STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR1
(DAC_TypeDef * DACx)
Function description
Clear DAC underrun flag for DAC channel 1.
Parameters
DACx: DAC instance
Return values
None
Reference Manual to
LL API cross
reference:
SR DMAUDR1 LL_DAC_ClearFlag_DMAUDR1
LL_DAC_ClearFlag_DMAUDR2
Function name
__STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR2
(DAC_TypeDef * DACx)
Function description
Clear DAC underrun flag for DAC channel 2.
Parameters
DACx: DAC instance
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Return values
None
Reference Manual to
LL API cross
reference:
SR DMAUDR2 LL_DAC_ClearFlag_DMAUDR2
LL_DAC_EnableIT_DMAUDR1
Function name
__STATIC_INLINE void LL_DAC_EnableIT_DMAUDR1
(DAC_TypeDef * DACx)
Function description
Enable DMA underrun interrupt for DAC channel 1.
Parameters
DACx: DAC instance
Return values
None
Reference Manual to
LL API cross
reference:
CR DMAUDRIE1 LL_DAC_EnableIT_DMAUDR1
LL_DAC_EnableIT_DMAUDR2
Function name
__STATIC_INLINE void LL_DAC_EnableIT_DMAUDR2
(DAC_TypeDef * DACx)
Function description
Enable DMA underrun interrupt for DAC channel 2.
Parameters
DACx: DAC instance
Return values
None
Reference Manual to
LL API cross
reference:
CR DMAUDRIE2 LL_DAC_EnableIT_DMAUDR2
LL_DAC_DisableIT_DMAUDR1
Function name
__STATIC_INLINE void LL_DAC_DisableIT_DMAUDR1
(DAC_TypeDef * DACx)
Function description
Disable DMA underrun interrupt for DAC channel 1.
Parameters
DACx: DAC instance
Return values
None
Reference Manual to
LL API cross
reference:
CR DMAUDRIE1 LL_DAC_DisableIT_DMAUDR1
LL_DAC_DisableIT_DMAUDR2
Function name
__STATIC_INLINE void LL_DAC_DisableIT_DMAUDR2
(DAC_TypeDef * DACx)
Function description
Disable DMA underrun interrupt for DAC channel 2.
Parameters
DACx: DAC instance
Return values
None
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Reference Manual to
LL API cross
reference:
CR DMAUDRIE2 LL_DAC_DisableIT_DMAUDR2
LL_DAC_IsEnabledIT_DMAUDR1
Function name
__STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR1
(DAC_TypeDef * DACx)
Function description
Get DMA underrun interrupt for DAC channel 1.
Parameters
DACx: DAC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR DMAUDRIE1 LL_DAC_IsEnabledIT_DMAUDR1
LL_DAC_IsEnabledIT_DMAUDR2
Function name
__STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR2
(DAC_TypeDef * DACx)
Function description
Get DMA underrun interrupt for DAC channel 2.
Parameters
DACx: DAC instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR DMAUDRIE2 LL_DAC_IsEnabledIT_DMAUDR2
LL_DAC_DeInit
Function name
ErrorStatus LL_DAC_DeInit (DAC_TypeDef * DACx)
Function description
De-initialize registers of the selected DAC instance to their default
reset values.
Parameters
DACx: DAC instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: DAC registers are de-initialized
ERROR: not applicable
LL_DAC_Init
Function name
ErrorStatus LL_DAC_Init (DAC_TypeDef * DACx, uint32_t
DAC_Channel, LL_DAC_InitTypeDef * DAC_InitStruct)
Function description
Initialize some features of DAC instance.
Parameters
DACx: DAC instance
DAC_Channel: This parameter can be one of the following
values: (1) On this STM32 serie, parameter not available on
all devices. Refer to device datasheet for channels
availability.
LL_DAC_CHANNEL_1
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LL_DAC_CHANNEL_2 (1)
DAC_InitStruct: Pointer to a LL_DAC_InitTypeDef structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: DAC registers are initialized
ERROR: DAC registers are not initialized
Notes
The setting of these parameters by function LL_DAC_Init() is
conditioned to DAC state: DAC instance must be disabled.
LL_DAC_StructInit
Function name
void LL_DAC_StructInit (LL_DAC_InitTypeDef *
DAC_InitStruct)
Function description
Set each LL_DAC_InitTypeDef field to default value.
Parameters
DAC_InitStruct: pointer to a LL_DAC_InitTypeDef structure
whose fields will be set to default values.
Return values
None
59.3 DAC Firmware driver defines
59.3.1 DAC
DAC channels
LL_DAC_CHANNEL_1
DAC channel 1
LL_DAC_CHANNEL_2
DAC channel 2
DAC flags
LL_DAC_FLAG_DMAUDR1
DAC channel 1 flag DMA underrun
LL_DAC_FLAG_DMAUDR2
DAC channel 2 flag DMA underrun
Definitions of DAC hardware constraints delays
LL_DAC_DELAY_STARTUP_VOLTAGE_SETTLING_US
Delay for DAC channel voltage
settling time from DAC channel
startup (transition from disable
to enable)
LL_DAC_DELAY_VOLTAGE_SETTLING_US
Delay for DAC channel voltage
settling time
DAC interruptions
LL_DAC_IT_DMAUDRIE1
DAC channel 1 interruption DMA underrun
LL_DAC_IT_DMAUDRIE2
DAC channel 2 interruption DMA underrun
DAC channel output buffer
LL_DAC_OUTPUT_BUFFER_ENABLE
The selected DAC channel output is buffered:
higher drive current capability, but also higher
current consumption
LL_DAC_OUTPUT_BUFFER_DISABLE
The selected DAC channel output is not
buffered: lower drive current capability, but also
lower current consumption
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DAC registers compliant with specific purpose
LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED
DAC channel data holding
register 12 bits right aligned
LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED
DAC channel data holding
register 12 bits left aligned
LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED
DAC channel data holding
register 8 bits right aligned
DAC channel output resolution
LL_DAC_RESOLUTION_12B
DAC channel resolution 12 bits
LL_DAC_RESOLUTION_8B
DAC channel resolution 8 bits
DAC trigger source
LL_DAC_TRIG_SOFTWARE
DAC channel conversion trigger internal (SW start)
LL_DAC_TRIG_EXT_TIM2_TRGO
DAC channel conversion trigger from external IP:
TIM2 TRGO.
LL_DAC_TRIG_EXT_TIM3_TRGO
DAC channel conversion trigger from external IP:
TIM3 TRGO.
LL_DAC_TRIG_EXT_TIM3_CH3
DAC channel conversion trigger from external IP:
TIM3 CH3 event.
LL_DAC_TRIG_EXT_TIM6_TRGO
DAC channel conversion trigger from external IP:
TIM6 TRGO.
LL_DAC_TRIG_EXT_TIM7_TRGO
DAC channel conversion trigger from external IP:
TIM7 TRGO.
LL_DAC_TRIG_EXT_TIM21_TRGO
DAC channel conversion trigger from external IP:
TIM21 TRGO.
LL_DAC_TRIG_EXT_EXTI_LINE9
DAC channel conversion trigger from external IP:
external interrupt line 9.
DAC waveform automatic generation mode
LL_DAC_WAVE_AUTO_GENERATION_NONE
DAC channel wave auto generation
mode disabled.
LL_DAC_WAVE_AUTO_GENERATION_NOISE
DAC channel wave auto generation
mode enabled, set generated noise
waveform.
LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
DAC channel wave auto generation
mode enabled, set generated
triangle waveform.
DAC wave generation - Noise LFSR unmask bits
LL_DAC_NOISE_LFSR_UNMASK_BIT0
Noise wave generation, unmask LFSR
bit0, for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
Noise wave generation, unmask LFSR
bits[1:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
Noise wave generation, unmask LFSR
bits[2:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
Noise wave generation, unmask LFSR
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bits[3:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
Noise wave generation, unmask LFSR
bits[4:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
Noise wave generation, unmask LFSR
bits[5:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
Noise wave generation, unmask LFSR
bits[6:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
Noise wave generation, unmask LFSR
bits[7:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
Noise wave generation, unmask LFSR
bits[8:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
Noise wave generation, unmask LFSR
bits[9:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
Noise wave generation, unmask LFSR
bits[10:0], for the selected DAC channel
LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
Noise wave generation, unmask LFSR
bits[11:0], for the selected DAC channel
DAC wave generation - Triangle amplitude
LL_DAC_TRIANGLE_AMPLITUDE_1
Triangle wave generation, amplitude of 1 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_3
Triangle wave generation, amplitude of 3 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_7
Triangle wave generation, amplitude of 7 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_15
Triangle wave generation, amplitude of 15 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_31
Triangle wave generation, amplitude of 31 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_63
Triangle wave generation, amplitude of 63 LSB
of DAC output range, for the selected DAC
channel
LL_DAC_TRIANGLE_AMPLITUDE_127
Triangle wave generation, amplitude of 127
LSB of DAC output range, for the selected
DAC channel
LL_DAC_TRIANGLE_AMPLITUDE_255
Triangle wave generation, amplitude of 255
LSB of DAC output range, for the selected
DAC channel
LL_DAC_TRIANGLE_AMPLITUDE_511
Triangle wave generation, amplitude of 512
LSB of DAC output range, for the selected
DAC channel
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LL_DAC_TRIANGLE_AMPLITUDE_1023
Triangle wave generation, amplitude of 1023
LSB of DAC output range, for the selected
DAC channel
LL_DAC_TRIANGLE_AMPLITUDE_2047
Triangle wave generation, amplitude of 2047
LSB of DAC output range, for the selected
DAC channel
LL_DAC_TRIANGLE_AMPLITUDE_4095
Triangle wave generation, amplitude of 4095
LSB of DAC output range, for the selected
DAC channel
DAC helper macro
__LL_DAC_CHANNEL_TO_DECIMAL_
NB
Description:
Helper macro to get DAC channel number
in decimal format from literals
LL_DAC_CHANNEL_x.
Parameters:
__CHANNEL__: This parameter can be
one of the following values:
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Return value:
1...2: (value "2" depending on DAC
channel 2 availability)
Notes:
The input can be a value from functions
where a channel number is returned.
__LL_DAC_DECIMAL_NB_TO_
CHANNEL
Description:
Helper macro to get DAC channel in literal
format LL_DAC_CHANNEL_x from
number in decimal format.
Parameters:
__DECIMAL_NB__: 1...2 (value "2"
depending on DAC channel 2 availability)
Return value:
Returned: value can be one of the
following values:
LL_DAC_CHANNEL_1
LL_DAC_CHANNEL_2 (1)
Notes:
If the input parameter does not
correspond to a DAC channel, this macro
returns value '0'.
__LL_DAC_DIGITAL_SCALE
Description:
Helper macro to define the DAC
conversion data full-scale digital value
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corresponding to the selected DAC
resolution.
Parameters:
__DAC_RESOLUTION__: This parameter
can be one of the following values:
LL_DAC_RESOLUTION_12B
LL_DAC_RESOLUTION_8B
Return value:
ADC: conversion data equivalent voltage
value (unit: mVolt)
Notes:
DAC conversion data full-scale
corresponds to voltage range determined
by analog voltage references Vref+ and
Vref- (refer to reference manual).
__LL_DAC_CALC_VOLTAGE_TO_
DATA
Description:
Helper macro to calculate the DAC
conversion data (unit: digital value)
corresponding to a voltage (unit: mVolt).
Parameters:
__VREFANALOG_VOLTAGE__: Analog
reference voltage (unit: mV)
__DAC_VOLTAGE__: Voltage to be
generated by DAC channel (unit: mVolt).
__DAC_RESOLUTION__: This parameter
can be one of the following values:
LL_DAC_RESOLUTION_12B
LL_DAC_RESOLUTION_8B
Return value:
DAC: conversion data (unit: digital value)
Notes:
This helper macro is intended to provide
input data in voltage rather than digital
value, to be used with LL DAC functions
such as
LL_DAC_ConvertData12RightAligned().
Analog reference voltage (Vref+) must be
either known from user board
environment or can be calculated using
ADC measurement and ADC helper
macro
__LL_ADC_CALC_VREFANALOG_VOLT
AGE().
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Common write and read registers macros
LL_DAC_WriteReg
Description:
Write a value in DAC register.
Parameters:
__INSTANCE__: DAC Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_DAC_ReadReg
Description:
Read a value in DAC register.
Parameters:
__INSTANCE__: DAC Instance
__REG__: Register to be read
Return value:
Register: value
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60 LL DMA Generic Driver
60.1 DMA Firmware driver registers structures
60.1.1 LL_DMA_InitTypeDef
Data Fields
uint32_t PeriphOrM2MSrcAddress
uint32_t MemoryOrM2MDstAddress
uint32_t Direction
uint32_t Mode
uint32_t PeriphOrM2MSrcIncMode
uint32_t MemoryOrM2MDstIncMode
uint32_t PeriphOrM2MSrcDataSize
uint32_t MemoryOrM2MDstDataSize
uint32_t NbData
uint32_t PeriphRequest
uint32_t Priority
Field Documentation
uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcAddress
Specifies the peripheral base address for DMA transfer or as Source base address in
case of memory to memory transfer direction.This parameter must be a value between
Min_Data = 0 and Max_Data = 0xFFFFFFFF.
uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstAddress
Specifies the memory base address for DMA transfer or as Destination base address
in case of memory to memory transfer direction.This parameter must be a value
between Min_Data = 0 and Max_Data = 0xFFFFFFFF.
uint32_t LL_DMA_InitTypeDef::Direction
Specifies if the data will be transferred from memory to peripheral, from memory to
memory or from peripheral to memory. This parameter can be a value of
DMA_LL_EC_DIRECTIONThis feature can be modified afterwards using unitary
function LL_DMA_SetDataTransferDirection().
uint32_t LL_DMA_InitTypeDef::Mode
Specifies the normal or circular operation mode. This parameter can be a value of
DMA_LL_EC_MODE
Note:: The circular buffer mode cannot be used if the memory to memory data
transfer direction is configured on the selected Channel This feature can be modified
afterwards using unitary function LL_DMA_SetMode().
uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcIncMode
Specifies whether the Peripheral address or Source address in case of memory to
memory transfer direction is incremented or not. This parameter can be a value of
DMA_LL_EC_PERIPHThis feature can be modified afterwards using unitary function
LL_DMA_SetPeriphIncMode().
uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstIncMode
Specifies whether the Memory address or Destination address in case of memory to
memory transfer direction is incremented or not. This parameter can be a value of
DMA_LL_EC_MEMORYThis feature can be modified afterwards using unitary
function LL_DMA_SetMemoryIncMode().
uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcDataSize
Specifies the Peripheral data size alignment or Source data size alignment (byte, half
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word, word) in case of memory to memory transfer direction. This parameter can be a
value of DMA_LL_EC_PDATAALIGNThis feature can be modified afterwards using
unitary function LL_DMA_SetPeriphSize().
uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstDataSize
Specifies the Memory data size alignment or Destination data size alignment (byte,
half word, word) in case of memory to memory transfer direction. This parameter can
be a value of DMA_LL_EC_MDATAALIGNThis feature can be modified afterwards
using unitary function LL_DMA_SetMemorySize().
uint32_t LL_DMA_InitTypeDef::NbData
Specifies the number of data to transfer, in data unit. The data unit is equal to the
source buffer configuration set in PeripheralSize or MemorySize parameters
depending in the transfer direction. This parameter must be a value between
Min_Data = 0 and Max_Data = 0x0000FFFFThis feature can be modified afterwards
using unitary function LL_DMA_SetDataLength().
uint32_t LL_DMA_InitTypeDef::PeriphRequest
Specifies the peripheral request. This parameter can be a value of
DMA_LL_EC_REQUESTThis feature can be modified afterwards using unitary
function LL_DMA_SetPeriphRequest().
uint32_t LL_DMA_InitTypeDef::Priority
Specifies the channel priority level. This parameter can be a value of
DMA_LL_EC_PRIORITYThis feature can be modified afterwards using unitary
function LL_DMA_SetChannelPriorityLevel().
60.2 DMA Firmware driver API description
60.2.1 Detailed description of functions
LL_DMA_EnableChannel
Function name
__STATIC_INLINE void LL_DMA_EnableChannel
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Enable DMA channel.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR EN LL_DMA_EnableChannel
LL_DMA_DisableChannel
Function name
__STATIC_INLINE void LL_DMA_DisableChannel
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Disable DMA channel.
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Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR EN LL_DMA_DisableChannel
LL_DMA_IsEnabledChannel
Function name
__STATIC_INLINE uint32_t LL_DMA_IsEnabledChannel
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Check if DMA channel is enabled or disabled.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCR EN LL_DMA_IsEnabledChannel
LL_DMA_ConfigTransfer
Function name
__STATIC_INLINE void LL_DMA_ConfigTransfer
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
Configuration)
Function description
Configure all parameters link to DMA transfer.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Configuration: This parameter must be a combination of all
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the following values:
LL_DMA_DIRECTION_PERIPH_TO_MEMORY or
LL_DMA_DIRECTION_MEMORY_TO_PERIPH or
LL_DMA_DIRECTION_MEMORY_TO_MEMORY
LL_DMA_MODE_NORMAL or
LL_DMA_MODE_CIRCULAR
LL_DMA_PERIPH_INCREMENT or
LL_DMA_PERIPH_NOINCREMENT
LL_DMA_MEMORY_INCREMENT or
LL_DMA_MEMORY_NOINCREMENT
LL_DMA_PDATAALIGN_BYTE or
LL_DMA_PDATAALIGN_HALFWORD or
LL_DMA_PDATAALIGN_WORD
LL_DMA_MDATAALIGN_BYTE or
LL_DMA_MDATAALIGN_HALFWORD or
LL_DMA_MDATAALIGN_WORD
LL_DMA_PRIORITY_LOW or
LL_DMA_PRIORITY_MEDIUM or
LL_DMA_PRIORITY_HIGH or
LL_DMA_PRIORITY_VERYHIGH
Return values
None
Reference Manual to
LL API cross
reference:
CCR DIR LL_DMA_ConfigTransfer
CCR MEM2MEM LL_DMA_ConfigTransfer
CCR CIRC LL_DMA_ConfigTransfer
CCR PINC LL_DMA_ConfigTransfer
CCR MINC LL_DMA_ConfigTransfer
CCR PSIZE LL_DMA_ConfigTransfer
CCR MSIZE LL_DMA_ConfigTransfer
CCR PL LL_DMA_ConfigTransfer
LL_DMA_SetDataTransferDirection
Function name
__STATIC_INLINE void LL_DMA_SetDataTransferDirection
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t Direction)
Function description
Set Data transfer direction (read from peripheral or from memory).
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Direction: This parameter can be one of the following
values:
LL_DMA_DIRECTION_PERIPH_TO_MEMORY
LL_DMA_DIRECTION_MEMORY_TO_PERIPH
LL_DMA_DIRECTION_MEMORY_TO_MEMORY
Return values
None
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Reference Manual to
LL API cross
reference:
CCR DIR LL_DMA_SetDataTransferDirection
CCR MEM2MEM LL_DMA_SetDataTransferDirection
LL_DMA_GetDataTransferDirection
Function name
__STATIC_INLINE uint32_t
LL_DMA_GetDataTransferDirection (DMA_TypeDef * DMAx,
uint32_t Channel)
Function description
Get Data transfer direction (read from peripheral or from memory).
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_DIRECTION_PERIPH_TO_MEMORY
LL_DMA_DIRECTION_MEMORY_TO_PERIPH
LL_DMA_DIRECTION_MEMORY_TO_MEMORY
Reference Manual to
LL API cross
reference:
CCR DIR LL_DMA_GetDataTransferDirection
CCR MEM2MEM LL_DMA_GetDataTransferDirection
LL_DMA_SetMode
Function name
__STATIC_INLINE void LL_DMA_SetMode (DMA_TypeDef *
DMAx, uint32_t Channel, uint32_t Mode)
Function description
Set DMA mode circular or normal.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Mode: This parameter can be one of the following values:
LL_DMA_MODE_NORMAL
LL_DMA_MODE_CIRCULAR
Return values
None
Notes
The circular buffer mode cannot be used if the memory-to-
memory data transfer is configured on the selected Channel.
Reference Manual to
LL API cross
CCR CIRC LL_DMA_SetMode
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LL_DMA_GetMode
Function name
__STATIC_INLINE uint32_t LL_DMA_GetMode (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Get DMA mode circular or normal.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_MODE_NORMAL
LL_DMA_MODE_CIRCULAR
Reference Manual to
LL API cross
reference:
CCR CIRC LL_DMA_GetMode
LL_DMA_SetPeriphIncMode
Function name
__STATIC_INLINE void LL_DMA_SetPeriphIncMode
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
PeriphOrM2MSrcIncMode)
Function description
Set Peripheral increment mode.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
PeriphOrM2MSrcIncMode: This parameter can be one of
the following values:
LL_DMA_PERIPH_INCREMENT
LL_DMA_PERIPH_NOINCREMENT
Return values
None
Reference Manual to
LL API cross
reference:
CCR PINC LL_DMA_SetPeriphIncMode
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LL_DMA_GetPeriphIncMode
Function name
__STATIC_INLINE uint32_t LL_DMA_GetPeriphIncMode
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Peripheral increment mode.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_PERIPH_INCREMENT
LL_DMA_PERIPH_NOINCREMENT
Reference Manual to
LL API cross
reference:
CCR PINC LL_DMA_GetPeriphIncMode
LL_DMA_SetMemoryIncMode
Function name
__STATIC_INLINE void LL_DMA_SetMemoryIncMode
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
MemoryOrM2MDstIncMode)
Function description
Set Memory increment mode.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
MemoryOrM2MDstIncMode: This parameter can be one of
the following values:
LL_DMA_MEMORY_INCREMENT
LL_DMA_MEMORY_NOINCREMENT
Return values
None
Reference Manual to
LL API cross
reference:
CCR MINC LL_DMA_SetMemoryIncMode
LL_DMA_GetMemoryIncMode
Function name
__STATIC_INLINE uint32_t LL_DMA_GetMemoryIncMode
(DMA_TypeDef * DMAx, uint32_t Channel)
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Function description
Get Memory increment mode.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_MEMORY_INCREMENT
LL_DMA_MEMORY_NOINCREMENT
Reference Manual to
LL API cross
reference:
CCR MINC LL_DMA_GetMemoryIncMode
LL_DMA_SetPeriphSize
Function name
__STATIC_INLINE void LL_DMA_SetPeriphSize
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
PeriphOrM2MSrcDataSize)
Function description
Set Peripheral size.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
PeriphOrM2MSrcDataSize: This parameter can be one of
the following values:
LL_DMA_PDATAALIGN_BYTE
LL_DMA_PDATAALIGN_HALFWORD
LL_DMA_PDATAALIGN_WORD
Return values
None
Reference Manual to
LL API cross
reference:
CCR PSIZE LL_DMA_SetPeriphSize
LL_DMA_GetPeriphSize
Function name
__STATIC_INLINE uint32_t LL_DMA_GetPeriphSize
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Peripheral size.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
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LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_PDATAALIGN_BYTE
LL_DMA_PDATAALIGN_HALFWORD
LL_DMA_PDATAALIGN_WORD
Reference Manual to
LL API cross
reference:
CCR PSIZE LL_DMA_GetPeriphSize
LL_DMA_SetMemorySize
Function name
__STATIC_INLINE void LL_DMA_SetMemorySize
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
MemoryOrM2MDstDataSize)
Function description
Set Memory size.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
MemoryOrM2MDstDataSize: This parameter can be one of
the following values:
LL_DMA_MDATAALIGN_BYTE
LL_DMA_MDATAALIGN_HALFWORD
LL_DMA_MDATAALIGN_WORD
Return values
None
Reference Manual to
LL API cross
reference:
CCR MSIZE LL_DMA_SetMemorySize
LL_DMA_GetMemorySize
Function name
__STATIC_INLINE uint32_t LL_DMA_GetMemorySize
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Memory size.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
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LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_MDATAALIGN_BYTE
LL_DMA_MDATAALIGN_HALFWORD
LL_DMA_MDATAALIGN_WORD
Reference Manual to
LL API cross
reference:
CCR MSIZE LL_DMA_GetMemorySize
LL_DMA_SetChannelPriorityLevel
Function name
__STATIC_INLINE void LL_DMA_SetChannelPriorityLevel
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t Priority)
Function description
Set Channel priority level.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Priority: This parameter can be one of the following values:
LL_DMA_PRIORITY_LOW
LL_DMA_PRIORITY_MEDIUM
LL_DMA_PRIORITY_HIGH
LL_DMA_PRIORITY_VERYHIGH
Return values
None
Reference Manual to
LL API cross
reference:
CCR PL LL_DMA_SetChannelPriorityLevel
LL_DMA_GetChannelPriorityLevel
Function name
__STATIC_INLINE uint32_t LL_DMA_GetChannelPriorityLevel
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Channel priority level.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
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LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_PRIORITY_LOW
LL_DMA_PRIORITY_MEDIUM
LL_DMA_PRIORITY_HIGH
LL_DMA_PRIORITY_VERYHIGH
Reference Manual to
LL API cross
reference:
CCR PL LL_DMA_GetChannelPriorityLevel
LL_DMA_SetDataLength
Function name
__STATIC_INLINE void LL_DMA_SetDataLength
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t NbData)
Function description
Set Number of data to transfer.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
NbData: Between Min_Data = 0 and Max_Data =
0x0000FFFF
Return values
None
Notes
This action has no effect if channel is enabled.
Reference Manual to
LL API cross
reference:
CNDTR NDT LL_DMA_SetDataLength
LL_DMA_GetDataLength
Function name
__STATIC_INLINE uint32_t LL_DMA_GetDataLength
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Number of data to transfer.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Between: Min_Data = 0 and Max_Data = 0xFFFFFFFF
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Notes
Once the channel is enabled, the return value indicate the
remaining bytes to be transmitted.
Reference Manual to
LL API cross
reference:
CNDTR NDT LL_DMA_GetDataLength
LL_DMA_ConfigAddresses
Function name
__STATIC_INLINE void LL_DMA_ConfigAddresses
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
SrcAddress, uint32_t DstAddress, uint32_t Direction)
Function description
Configure the Source and Destination addresses.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
SrcAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
DstAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
Direction: This parameter can be one of the following
values:
LL_DMA_DIRECTION_PERIPH_TO_MEMORY
LL_DMA_DIRECTION_MEMORY_TO_PERIPH
LL_DMA_DIRECTION_MEMORY_TO_MEMORY
Return values
None
Notes
Each IP using DMA provides an API to get directly the
register adress (LL_PPP_DMA_GetRegAddr)
Reference Manual to
LL API cross
reference:
CPAR PA LL_DMA_ConfigAddresses
CMAR MA LL_DMA_ConfigAddresses
LL_DMA_SetMemoryAddress
Function name
__STATIC_INLINE void LL_DMA_SetMemoryAddress
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
MemoryAddress)
Function description
Set the Memory address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
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LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
MemoryAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
Return values
None
Notes
Interface used for direction
LL_DMA_DIRECTION_PERIPH_TO_MEMORY or
LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.
Reference Manual to
LL API cross
reference:
CMAR MA LL_DMA_SetMemoryAddress
LL_DMA_SetPeriphAddress
Function name
__STATIC_INLINE void LL_DMA_SetPeriphAddress
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
PeriphAddress)
Function description
Set the Peripheral address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
PeriphAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
Return values
None
Notes
Interface used for direction
LL_DMA_DIRECTION_PERIPH_TO_MEMORY or
LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.
Reference Manual to
LL API cross
reference:
CPAR PA LL_DMA_SetPeriphAddress
LL_DMA_GetMemoryAddress
Function name
__STATIC_INLINE uint32_t LL_DMA_GetMemoryAddress
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Memory address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
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LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Between: Min_Data = 0 and Max_Data = 0xFFFFFFFF
Notes
Interface used for direction
LL_DMA_DIRECTION_PERIPH_TO_MEMORY or
LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.
Reference Manual to
LL API cross
reference:
CMAR MA LL_DMA_GetMemoryAddress
LL_DMA_GetPeriphAddress
Function name
__STATIC_INLINE uint32_t LL_DMA_GetPeriphAddress
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get Peripheral address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Between: Min_Data = 0 and Max_Data = 0xFFFFFFFF
Notes
Interface used for direction
LL_DMA_DIRECTION_PERIPH_TO_MEMORY or
LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.
Reference Manual to
LL API cross
reference:
CPAR PA LL_DMA_GetPeriphAddress
LL_DMA_SetM2MSrcAddress
Function name
__STATIC_INLINE void LL_DMA_SetM2MSrcAddress
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
MemoryAddress)
Function description
Set the Memory to Memory Source address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
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LL_DMA_CHANNEL_7
MemoryAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
Return values
None
Notes
Interface used for direction
LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.
Reference Manual to
LL API cross
reference:
CPAR PA LL_DMA_SetM2MSrcAddress
LL_DMA_SetM2MDstAddress
Function name
__STATIC_INLINE void LL_DMA_SetM2MDstAddress
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
MemoryAddress)
Function description
Set the Memory to Memory Destination address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
MemoryAddress: Between Min_Data = 0 and Max_Data =
0xFFFFFFFF
Return values
None
Notes
Interface used for direction
LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.
Reference Manual to
LL API cross
reference:
CMAR MA LL_DMA_SetM2MDstAddress
LL_DMA_GetM2MSrcAddress
Function name
__STATIC_INLINE uint32_t LL_DMA_GetM2MSrcAddress
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get the Memory to Memory Source address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
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Return values
Between: Min_Data = 0 and Max_Data = 0xFFFFFFFF
Notes
Interface used for direction
LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.
Reference Manual to
LL API cross
reference:
CPAR PA LL_DMA_GetM2MSrcAddress
LL_DMA_GetM2MDstAddress
Function name
__STATIC_INLINE uint32_t LL_DMA_GetM2MDstAddress
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get the Memory to Memory Destination address.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Between: Min_Data = 0 and Max_Data = 0xFFFFFFFF
Notes
Interface used for direction
LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.
Reference Manual to
LL API cross
reference:
CMAR MA LL_DMA_GetM2MDstAddress
LL_DMA_SetPeriphRequest
Function name
__STATIC_INLINE void LL_DMA_SetPeriphRequest
(DMA_TypeDef * DMAx, uint32_t Channel, uint32_t
PeriphRequest)
Function description
Set DMA request for DMA instance on Channel x.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
PeriphRequest: This parameter can be one of the following
values:
LL_DMA_REQUEST_0
LL_DMA_REQUEST_1
LL_DMA_REQUEST_2
LL_DMA_REQUEST_3
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LL_DMA_REQUEST_4
LL_DMA_REQUEST_5
LL_DMA_REQUEST_6
LL_DMA_REQUEST_7
LL_DMA_REQUEST_8
LL_DMA_REQUEST_9
LL_DMA_REQUEST_10
LL_DMA_REQUEST_11
LL_DMA_REQUEST_12
LL_DMA_REQUEST_13
LL_DMA_REQUEST_14
LL_DMA_REQUEST_15
Return values
None
Notes
Please refer to Reference Manual to get the available
mapping of Request value link to Channel Selection.
Reference Manual to
LL API cross
reference:
CSELR C1S LL_DMA_SetPeriphRequest
CSELR C2S LL_DMA_SetPeriphRequest
CSELR C3S LL_DMA_SetPeriphRequest
CSELR C4S LL_DMA_SetPeriphRequest
CSELR C5S LL_DMA_SetPeriphRequest
CSELR C6S LL_DMA_SetPeriphRequest
CSELR C7S LL_DMA_SetPeriphRequest
LL_DMA_GetPeriphRequest
Function name
__STATIC_INLINE uint32_t LL_DMA_GetPeriphRequest
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Get DMA request for DMA instance on Channel x.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
Returned: value can be one of the following values:
LL_DMA_REQUEST_0
LL_DMA_REQUEST_1
LL_DMA_REQUEST_2
LL_DMA_REQUEST_3
LL_DMA_REQUEST_4
LL_DMA_REQUEST_5
LL_DMA_REQUEST_6
LL_DMA_REQUEST_7
LL_DMA_REQUEST_8
LL_DMA_REQUEST_9
LL_DMA_REQUEST_10
LL_DMA_REQUEST_11
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LL_DMA_REQUEST_12
LL_DMA_REQUEST_13
LL_DMA_REQUEST_14
LL_DMA_REQUEST_15
Reference Manual to
LL API cross
reference:
CSELR C1S LL_DMA_GetPeriphRequest
CSELR C2S LL_DMA_GetPeriphRequest
CSELR C3S LL_DMA_GetPeriphRequest
CSELR C4S LL_DMA_GetPeriphRequest
CSELR C5S LL_DMA_GetPeriphRequest
CSELR C6S LL_DMA_GetPeriphRequest
CSELR C7S LL_DMA_GetPeriphRequest
LL_DMA_IsActiveFlag_GI1
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI1
(DMA_TypeDef * DMAx)
Function description
Get Channel 1 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF1 LL_DMA_IsActiveFlag_GI1
LL_DMA_IsActiveFlag_GI2
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI2
(DMA_TypeDef * DMAx)
Function description
Get Channel 2 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF2 LL_DMA_IsActiveFlag_GI2
LL_DMA_IsActiveFlag_GI3
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI3
(DMA_TypeDef * DMAx)
Function description
Get Channel 3 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF3 LL_DMA_IsActiveFlag_GI3
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Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI4
(DMA_TypeDef * DMAx)
Function description
Get Channel 4 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF4 LL_DMA_IsActiveFlag_GI4
LL_DMA_IsActiveFlag_GI5
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI5
(DMA_TypeDef * DMAx)
Function description
Get Channel 5 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF5 LL_DMA_IsActiveFlag_GI5
LL_DMA_IsActiveFlag_GI6
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI6
(DMA_TypeDef * DMAx)
Function description
Get Channel 6 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF6 LL_DMA_IsActiveFlag_GI6
LL_DMA_IsActiveFlag_GI7
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_GI7
(DMA_TypeDef * DMAx)
Function description
Get Channel 7 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR GIF7 LL_DMA_IsActiveFlag_GI7
LL DMA Generic Driver
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LL_DMA_IsActiveFlag_TC1
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC1
(DMA_TypeDef * DMAx)
Function description
Get Channel 1 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF1 LL_DMA_IsActiveFlag_TC1
LL_DMA_IsActiveFlag_TC2
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC2
(DMA_TypeDef * DMAx)
Function description
Get Channel 2 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF2 LL_DMA_IsActiveFlag_TC2
LL_DMA_IsActiveFlag_TC3
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC3
(DMA_TypeDef * DMAx)
Function description
Get Channel 3 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF3 LL_DMA_IsActiveFlag_TC3
LL_DMA_IsActiveFlag_TC4
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC4
(DMA_TypeDef * DMAx)
Function description
Get Channel 4 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF4 LL_DMA_IsActiveFlag_TC4
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LL_DMA_IsActiveFlag_TC5
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC5
(DMA_TypeDef * DMAx)
Function description
Get Channel 5 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF5 LL_DMA_IsActiveFlag_TC5
LL_DMA_IsActiveFlag_TC6
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC6
(DMA_TypeDef * DMAx)
Function description
Get Channel 6 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF6 LL_DMA_IsActiveFlag_TC6
LL_DMA_IsActiveFlag_TC7
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TC7
(DMA_TypeDef * DMAx)
Function description
Get Channel 7 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TCIF7 LL_DMA_IsActiveFlag_TC7
LL_DMA_IsActiveFlag_HT1
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT1
(DMA_TypeDef * DMAx)
Function description
Get Channel 1 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF1 LL_DMA_IsActiveFlag_HT1
LL DMA Generic Driver
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LL_DMA_IsActiveFlag_HT2
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT2
(DMA_TypeDef * DMAx)
Function description
Get Channel 2 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF2 LL_DMA_IsActiveFlag_HT2
LL_DMA_IsActiveFlag_HT3
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT3
(DMA_TypeDef * DMAx)
Function description
Get Channel 3 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF3 LL_DMA_IsActiveFlag_HT3
LL_DMA_IsActiveFlag_HT4
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT4
(DMA_TypeDef * DMAx)
Function description
Get Channel 4 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF4 LL_DMA_IsActiveFlag_HT4
LL_DMA_IsActiveFlag_HT5
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT5
(DMA_TypeDef * DMAx)
Function description
Get Channel 5 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF5 LL_DMA_IsActiveFlag_HT5
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LL_DMA_IsActiveFlag_HT6
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT6
(DMA_TypeDef * DMAx)
Function description
Get Channel 6 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF6 LL_DMA_IsActiveFlag_HT6
LL_DMA_IsActiveFlag_HT7
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_HT7
(DMA_TypeDef * DMAx)
Function description
Get Channel 7 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR HTIF7 LL_DMA_IsActiveFlag_HT7
LL_DMA_IsActiveFlag_TE1
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE1
(DMA_TypeDef * DMAx)
Function description
Get Channel 1 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF1 LL_DMA_IsActiveFlag_TE1
LL_DMA_IsActiveFlag_TE2
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE2
(DMA_TypeDef * DMAx)
Function description
Get Channel 2 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF2 LL_DMA_IsActiveFlag_TE2
LL DMA Generic Driver
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LL_DMA_IsActiveFlag_TE3
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE3
(DMA_TypeDef * DMAx)
Function description
Get Channel 3 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF3 LL_DMA_IsActiveFlag_TE3
LL_DMA_IsActiveFlag_TE4
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE4
(DMA_TypeDef * DMAx)
Function description
Get Channel 4 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF4 LL_DMA_IsActiveFlag_TE4
LL_DMA_IsActiveFlag_TE5
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE5
(DMA_TypeDef * DMAx)
Function description
Get Channel 5 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF5 LL_DMA_IsActiveFlag_TE5
LL_DMA_IsActiveFlag_TE6
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE6
(DMA_TypeDef * DMAx)
Function description
Get Channel 6 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF6 LL_DMA_IsActiveFlag_TE6
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LL_DMA_IsActiveFlag_TE7
Function name
__STATIC_INLINE uint32_t LL_DMA_IsActiveFlag_TE7
(DMA_TypeDef * DMAx)
Function description
Get Channel 7 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEIF7 LL_DMA_IsActiveFlag_TE7
LL_DMA_ClearFlag_GI1
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI1
(DMA_TypeDef * DMAx)
Function description
Clear Channel 1 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF1 LL_DMA_ClearFlag_GI1
LL_DMA_ClearFlag_GI2
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI2
(DMA_TypeDef * DMAx)
Function description
Clear Channel 2 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF2 LL_DMA_ClearFlag_GI2
LL_DMA_ClearFlag_GI3
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI3
(DMA_TypeDef * DMAx)
Function description
Clear Channel 3 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF3 LL_DMA_ClearFlag_GI3
LL DMA Generic Driver
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LL_DMA_ClearFlag_GI4
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI4
(DMA_TypeDef * DMAx)
Function description
Clear Channel 4 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF4 LL_DMA_ClearFlag_GI4
LL_DMA_ClearFlag_GI5
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI5
(DMA_TypeDef * DMAx)
Function description
Clear Channel 5 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF5 LL_DMA_ClearFlag_GI5
LL_DMA_ClearFlag_GI6
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI6
(DMA_TypeDef * DMAx)
Function description
Clear Channel 6 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF6 LL_DMA_ClearFlag_GI6
LL_DMA_ClearFlag_GI7
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_GI7
(DMA_TypeDef * DMAx)
Function description
Clear Channel 7 global interrupt flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CGIF7 LL_DMA_ClearFlag_GI7
UM1749
LL DMA Generic Driver
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LL_DMA_ClearFlag_TC1
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC1
(DMA_TypeDef * DMAx)
Function description
Clear Channel 1 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF1 LL_DMA_ClearFlag_TC1
LL_DMA_ClearFlag_TC2
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC2
(DMA_TypeDef * DMAx)
Function description
Clear Channel 2 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF2 LL_DMA_ClearFlag_TC2
LL_DMA_ClearFlag_TC3
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC3
(DMA_TypeDef * DMAx)
Function description
Clear Channel 3 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF3 LL_DMA_ClearFlag_TC3
LL_DMA_ClearFlag_TC4
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC4
(DMA_TypeDef * DMAx)
Function description
Clear Channel 4 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF4 LL_DMA_ClearFlag_TC4
LL DMA Generic Driver
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LL_DMA_ClearFlag_TC5
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC5
(DMA_TypeDef * DMAx)
Function description
Clear Channel 5 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF5 LL_DMA_ClearFlag_TC5
LL_DMA_ClearFlag_TC6
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC6
(DMA_TypeDef * DMAx)
Function description
Clear Channel 6 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF6 LL_DMA_ClearFlag_TC6
LL_DMA_ClearFlag_TC7
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TC7
(DMA_TypeDef * DMAx)
Function description
Clear Channel 7 transfer complete flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTCIF7 LL_DMA_ClearFlag_TC7
LL_DMA_ClearFlag_HT1
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT1
(DMA_TypeDef * DMAx)
Function description
Clear Channel 1 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF1 LL_DMA_ClearFlag_HT1
UM1749
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LL_DMA_ClearFlag_HT2
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT2
(DMA_TypeDef * DMAx)
Function description
Clear Channel 2 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF2 LL_DMA_ClearFlag_HT2
LL_DMA_ClearFlag_HT3
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT3
(DMA_TypeDef * DMAx)
Function description
Clear Channel 3 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF3 LL_DMA_ClearFlag_HT3
LL_DMA_ClearFlag_HT4
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT4
(DMA_TypeDef * DMAx)
Function description
Clear Channel 4 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF4 LL_DMA_ClearFlag_HT4
LL_DMA_ClearFlag_HT5
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT5
(DMA_TypeDef * DMAx)
Function description
Clear Channel 5 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF5 LL_DMA_ClearFlag_HT5
LL DMA Generic Driver
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LL_DMA_ClearFlag_HT6
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT6
(DMA_TypeDef * DMAx)
Function description
Clear Channel 6 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF6 LL_DMA_ClearFlag_HT6
LL_DMA_ClearFlag_HT7
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_HT7
(DMA_TypeDef * DMAx)
Function description
Clear Channel 7 half transfer flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CHTIF7 LL_DMA_ClearFlag_HT7
LL_DMA_ClearFlag_TE1
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE1
(DMA_TypeDef * DMAx)
Function description
Clear Channel 1 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF1 LL_DMA_ClearFlag_TE1
LL_DMA_ClearFlag_TE2
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE2
(DMA_TypeDef * DMAx)
Function description
Clear Channel 2 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF2 LL_DMA_ClearFlag_TE2
UM1749
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LL_DMA_ClearFlag_TE3
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE3
(DMA_TypeDef * DMAx)
Function description
Clear Channel 3 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF3 LL_DMA_ClearFlag_TE3
LL_DMA_ClearFlag_TE4
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE4
(DMA_TypeDef * DMAx)
Function description
Clear Channel 4 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF4 LL_DMA_ClearFlag_TE4
LL_DMA_ClearFlag_TE5
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE5
(DMA_TypeDef * DMAx)
Function description
Clear Channel 5 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF5 LL_DMA_ClearFlag_TE5
LL_DMA_ClearFlag_TE6
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE6
(DMA_TypeDef * DMAx)
Function description
Clear Channel 6 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF6 LL_DMA_ClearFlag_TE6
LL DMA Generic Driver
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LL_DMA_ClearFlag_TE7
Function name
__STATIC_INLINE void LL_DMA_ClearFlag_TE7
(DMA_TypeDef * DMAx)
Function description
Clear Channel 7 transfer error flag.
Parameters
DMAx: DMAx Instance
Return values
None
Reference Manual to
LL API cross
reference:
IFCR CTEIF7 LL_DMA_ClearFlag_TE7
LL_DMA_EnableIT_TC
Function name
__STATIC_INLINE void LL_DMA_EnableIT_TC (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Enable Transfer complete interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR TCIE LL_DMA_EnableIT_TC
LL_DMA_EnableIT_HT
Function name
__STATIC_INLINE void LL_DMA_EnableIT_HT (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Enable Half transfer interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
CCR HTIE LL_DMA_EnableIT_HT
UM1749
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DocID026232 Rev 6
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reference:
LL_DMA_EnableIT_TE
Function name
__STATIC_INLINE void LL_DMA_EnableIT_TE (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Enable Transfer error interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR TEIE LL_DMA_EnableIT_TE
LL_DMA_DisableIT_TC
Function name
__STATIC_INLINE void LL_DMA_DisableIT_TC (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Disable Transfer complete interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR TCIE LL_DMA_DisableIT_TC
LL_DMA_DisableIT_HT
Function name
__STATIC_INLINE void LL_DMA_DisableIT_HT (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Disable Half transfer interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
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LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR HTIE LL_DMA_DisableIT_HT
LL_DMA_DisableIT_TE
Function name
__STATIC_INLINE void LL_DMA_DisableIT_TE (DMA_TypeDef
* DMAx, uint32_t Channel)
Function description
Disable Transfer error interrupt.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CCR TEIE LL_DMA_DisableIT_TE
LL_DMA_IsEnabledIT_TC
Function name
__STATIC_INLINE uint32_t LL_DMA_IsEnabledIT_TC
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Check if Transfer complete Interrupt is enabled.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCR TCIE LL_DMA_IsEnabledIT_TC
UM1749
LL DMA Generic Driver
DocID026232 Rev 6
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LL_DMA_IsEnabledIT_HT
Function name
__STATIC_INLINE uint32_t LL_DMA_IsEnabledIT_HT
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Check if Half transfer Interrupt is enabled.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCR HTIE LL_DMA_IsEnabledIT_HT
LL_DMA_IsEnabledIT_TE
Function name
__STATIC_INLINE uint32_t LL_DMA_IsEnabledIT_TE
(DMA_TypeDef * DMAx, uint32_t Channel)
Function description
Check if Transfer error Interrupt is enabled.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCR TEIE LL_DMA_IsEnabledIT_TE
LL_DMA_Init
Function name
uint32_t LL_DMA_Init (DMA_TypeDef * DMAx, uint32_t
Channel, LL_DMA_InitTypeDef * DMA_InitStruct)
Function description
Initialize the DMA registers according to the specified parameters
in DMA_InitStruct.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
(*) value not defined in all devices
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
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LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6 (*)
LL_DMA_CHANNEL_7 (*)
DMA_InitStruct: pointer to a LL_DMA_InitTypeDef structure.
Return values
An: ErrorStatus enumeration value:
SUCCESS: DMA registers are initialized
ERROR: Not applicable
Notes
To convert DMAx_Channely Instance to DMAx Instance and
Channely, use helper macros : __LL_DMA_GET_INSTANCE
__LL_DMA_GET_CHANNEL
LL_DMA_DeInit
Function name
uint32_t LL_DMA_DeInit (DMA_TypeDef * DMAx, uint32_t
Channel)
Function description
De-initialize the DMA registers to their default reset values.
Parameters
DMAx: DMAx Instance
Channel: This parameter can be one of the following values:
(*) value not defined in all devices
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6 (*)
LL_DMA_CHANNEL_7 (*)
LL_DMA_CHANNEL_ALL
Return values
An: ErrorStatus enumeration value:
SUCCESS: DMA registers are de-initialized
ERROR: DMA registers are not de-initialized
LL_DMA_StructInit
Function name
void LL_DMA_StructInit (LL_DMA_InitTypeDef *
DMA_InitStruct)
Function description
Set each LL_DMA_InitTypeDef field to default value.
Parameters
DMA_InitStruct: Pointer to a LL_DMA_InitTypeDef
structure.
Return values
None
60.3 DMA Firmware driver defines
60.3.1 DMA
CHANNEL
LL_DMA_CHANNEL_1
DMA Channel 1
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LL_DMA_CHANNEL_2
DMA Channel 2
LL_DMA_CHANNEL_3
DMA Channel 3
LL_DMA_CHANNEL_4
DMA Channel 4
LL_DMA_CHANNEL_5
DMA Channel 5
LL_DMA_CHANNEL_6
DMA Channel 6
LL_DMA_CHANNEL_7
DMA Channel 7
LL_DMA_CHANNEL_ALL
DMA Channel all (used only for function
Clear Flags Defines
LL_DMA_IFCR_CGIF1
Channel 1 global flag
LL_DMA_IFCR_CTCIF1
Channel 1 transfer complete flag
LL_DMA_IFCR_CHTIF1
Channel 1 half transfer flag
LL_DMA_IFCR_CTEIF1
Channel 1 transfer error flag
LL_DMA_IFCR_CGIF2
Channel 2 global flag
LL_DMA_IFCR_CTCIF2
Channel 2 transfer complete flag
LL_DMA_IFCR_CHTIF2
Channel 2 half transfer flag
LL_DMA_IFCR_CTEIF2
Channel 2 transfer error flag
LL_DMA_IFCR_CGIF3
Channel 3 global flag
LL_DMA_IFCR_CTCIF3
Channel 3 transfer complete flag
LL_DMA_IFCR_CHTIF3
Channel 3 half transfer flag
LL_DMA_IFCR_CTEIF3
Channel 3 transfer error flag
LL_DMA_IFCR_CGIF4
Channel 4 global flag
LL_DMA_IFCR_CTCIF4
Channel 4 transfer complete flag
LL_DMA_IFCR_CHTIF4
Channel 4 half transfer flag
LL_DMA_IFCR_CTEIF4
Channel 4 transfer error flag
LL_DMA_IFCR_CGIF5
Channel 5 global flag
LL_DMA_IFCR_CTCIF5
Channel 5 transfer complete flag
LL_DMA_IFCR_CHTIF5
Channel 5 half transfer flag
LL_DMA_IFCR_CTEIF5
Channel 5 transfer error flag
LL_DMA_IFCR_CGIF6
Channel 6 global flag
LL_DMA_IFCR_CTCIF6
Channel 6 transfer complete flag
LL_DMA_IFCR_CHTIF6
Channel 6 half transfer flag
LL_DMA_IFCR_CTEIF6
Channel 6 transfer error flag
LL_DMA_IFCR_CGIF7
Channel 7 global flag
LL_DMA_IFCR_CTCIF7
Channel 7 transfer complete flag
LL_DMA_IFCR_CHTIF7
Channel 7 half transfer flag
LL_DMA_IFCR_CTEIF7
Channel 7 transfer error flag
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Transfer Direction
LL_DMA_DIRECTION_PERIPH_TO_MEMORY
Peripheral to memory direction
LL_DMA_DIRECTION_MEMORY_TO_PERIPH
Memory to peripheral direction
LL_DMA_DIRECTION_MEMORY_TO_MEMORY
Memory to memory direction
Get Flags Defines
LL_DMA_ISR_GIF1
Channel 1 global flag
LL_DMA_ISR_TCIF1
Channel 1 transfer complete flag
LL_DMA_ISR_HTIF1
Channel 1 half transfer flag
LL_DMA_ISR_TEIF1
Channel 1 transfer error flag
LL_DMA_ISR_GIF2
Channel 2 global flag
LL_DMA_ISR_TCIF2
Channel 2 transfer complete flag
LL_DMA_ISR_HTIF2
Channel 2 half transfer flag
LL_DMA_ISR_TEIF2
Channel 2 transfer error flag
LL_DMA_ISR_GIF3
Channel 3 global flag
LL_DMA_ISR_TCIF3
Channel 3 transfer complete flag
LL_DMA_ISR_HTIF3
Channel 3 half transfer flag
LL_DMA_ISR_TEIF3
Channel 3 transfer error flag
LL_DMA_ISR_GIF4
Channel 4 global flag
LL_DMA_ISR_TCIF4
Channel 4 transfer complete flag
LL_DMA_ISR_HTIF4
Channel 4 half transfer flag
LL_DMA_ISR_TEIF4
Channel 4 transfer error flag
LL_DMA_ISR_GIF5
Channel 5 global flag
LL_DMA_ISR_TCIF5
Channel 5 transfer complete flag
LL_DMA_ISR_HTIF5
Channel 5 half transfer flag
LL_DMA_ISR_TEIF5
Channel 5 transfer error flag
LL_DMA_ISR_GIF6
Channel 6 global flag
LL_DMA_ISR_TCIF6
Channel 6 transfer complete flag
LL_DMA_ISR_HTIF6
Channel 6 half transfer flag
LL_DMA_ISR_TEIF6
Channel 6 transfer error flag
LL_DMA_ISR_GIF7
Channel 7 global flag
LL_DMA_ISR_TCIF7
Channel 7 transfer complete flag
LL_DMA_ISR_HTIF7
Channel 7 half transfer flag
LL_DMA_ISR_TEIF7
Channel 7 transfer error flag
IT Defines
LL_DMA_CCR_TCIE
Transfer complete interrupt
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LL_DMA_CCR_HTIE
Half Transfer interrupt
LL_DMA_CCR_TEIE
Transfer error interrupt
Memory data alignment
LL_DMA_MDATAALIGN_BYTE
Memory data alignment : Byte
LL_DMA_MDATAALIGN_HALFWORD
Memory data alignment : HalfWord
LL_DMA_MDATAALIGN_WORD
Memory data alignment : Word
Memory increment mode
LL_DMA_MEMORY_INCREMENT
Memory increment mode Enable
LL_DMA_MEMORY_NOINCREMENT
Memory increment mode Disable
Transfer mode
LL_DMA_MODE_NORMAL
Normal Mode
LL_DMA_MODE_CIRCULAR
Circular Mode
Peripheral data alignment
LL_DMA_PDATAALIGN_BYTE
Peripheral data alignment : Byte
LL_DMA_PDATAALIGN_HALFWORD
Peripheral data alignment : HalfWord
LL_DMA_PDATAALIGN_WORD
Peripheral data alignment : Word
Peripheral increment mode
LL_DMA_PERIPH_INCREMENT
Peripheral increment mode Enable
LL_DMA_PERIPH_NOINCREMENT
Peripheral increment mode Disable
Transfer Priority level
LL_DMA_PRIORITY_LOW
Priority level : Low
LL_DMA_PRIORITY_MEDIUM
Priority level : Medium
LL_DMA_PRIORITY_HIGH
Priority level : High
LL_DMA_PRIORITY_VERYHIGH
Priority level : Very_High
Transfer peripheral request
LL_DMA_REQUEST_0
DMA peripheral request 0
LL_DMA_REQUEST_1
DMA peripheral request 1
LL_DMA_REQUEST_2
DMA peripheral request 2
LL_DMA_REQUEST_3
DMA peripheral request 3
LL_DMA_REQUEST_4
DMA peripheral request 4
LL_DMA_REQUEST_5
DMA peripheral request 5
LL_DMA_REQUEST_6
DMA peripheral request 6
LL_DMA_REQUEST_7
DMA peripheral request 7
LL_DMA_REQUEST_8
DMA peripheral request 8
LL_DMA_REQUEST_9
DMA peripheral request 9
LL_DMA_REQUEST_10
DMA peripheral request 10
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LL_DMA_REQUEST_11
DMA peripheral request 11
LL_DMA_REQUEST_12
DMA peripheral request 12
LL_DMA_REQUEST_13
DMA peripheral request 13
LL_DMA_REQUEST_14
DMA peripheral request 14
LL_DMA_REQUEST_15
DMA peripheral request 15
Convert DMAxChannely
__LL_DMA_GET_INSTANCE
Description:
Convert DMAx_Channely into DMAx.
Parameters:
__CHANNEL_INSTANCE__:
DMAx_Channely
Return value:
DMAx
__LL_DMA_GET_CHANNEL
Description:
Convert DMAx_Channely into
LL_DMA_CHANNEL_y.
Parameters:
__CHANNEL_INSTANCE__:
DMAx_Channely
Return value:
LL_DMA_CHANNEL_y
__LL_DMA_GET_CHANNEL_INSTANCE
Description:
Convert DMA Instance DMAx and
LL_DMA_CHANNEL_y into
DMAx_Channely.
Parameters:
__DMA_INSTANCE__: DMAx
__CHANNEL__: LL_DMA_CHANNEL_y
Return value:
DMAx_Channely
Common Write and read registers macros
LL_DMA_WriteReg
Description:
Write a value in DMA register.
Parameters:
__INSTANCE__: DMA Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
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None
LL_DMA_ReadReg
Description:
Read a value in DMA register.
Parameters:
__INSTANCE__: DMA Instance
__REG__: Register to be read
Return value:
Register: value
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61 LL EXTI Generic Driver
61.1 EXTI Firmware driver registers structures
61.1.1 LL_EXTI_InitTypeDef
Data Fields
uint32_t Line_0_31
FunctionalState LineCommand
uint8_t Mode
uint8_t Trigger
Field Documentation
uint32_t LL_EXTI_InitTypeDef::Line_0_31
Specifies the EXTI lines to be enabled or disabled for Lines in range 0 to 31 This
parameter can be any combination of EXTI_LL_EC_LINE
FunctionalState LL_EXTI_InitTypeDef::LineCommand
Specifies the new state of the selected EXTI lines. This parameter can be set either to
ENABLE or DISABLE
uint8_t LL_EXTI_InitTypeDef::Mode
Specifies the mode for the EXTI lines. This parameter can be a value of
EXTI_LL_EC_MODE.
uint8_t LL_EXTI_InitTypeDef::Trigger
Specifies the trigger signal active edge for the EXTI lines. This parameter can be a
value of EXTI_LL_EC_TRIGGER.
61.2 EXTI Firmware driver API description
61.2.1 Detailed description of functions
LL_EXTI_EnableIT_0_31
Function name
__STATIC_INLINE void LL_EXTI_EnableIT_0_31 (uint32_t
ExtiLine)
Function description
Enable ExtiLine Interrupt request for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
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LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
None
Notes
The reset value for the direct or internal lines (see RM) is set
to 1 in order to enable the interrupt by default. Bits are set
automatically at Power on.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
IMR IMx LL_EXTI_EnableIT_0_31
LL_EXTI_DisableIT_0_31
Function name
__STATIC_INLINE void LL_EXTI_DisableIT_0_31 (uint32_t
ExtiLine)
Function description
Disable ExtiLine Interrupt request for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
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LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
None
Notes
The reset value for the direct or internal lines (see RM) is set
to 1 in order to enable the interrupt by default. Bits are set
automatically at Power on.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
IMR IMx LL_EXTI_DisableIT_0_31
LL_EXTI_IsEnabledIT_0_31
Function name
__STATIC_INLINE uint32_t LL_EXTI_IsEnabledIT_0_31
(uint32_t ExtiLine)
Function description
Indicate if ExtiLine Interrupt request is enabled for Lines in range 0
to 31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
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LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
State: of bit (1 or 0).
Notes
The reset value for the direct or internal lines (see RM) is set
to 1 in order to enable the interrupt by default. Bits are set
automatically at Power on.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
IMR IMx LL_EXTI_IsEnabledIT_0_31
LL_EXTI_EnableEvent_0_31
Function name
__STATIC_INLINE void LL_EXTI_EnableEvent_0_31 (uint32_t
ExtiLine)
Function description
Enable ExtiLine Event request for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
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LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
None
Notes
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
EMR EMx LL_EXTI_EnableEvent_0_31
LL_EXTI_DisableEvent_0_31
Function name
__STATIC_INLINE void LL_EXTI_DisableEvent_0_31 (uint32_t
ExtiLine)
Function description
Disable ExtiLine Event request for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
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LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
None
Notes
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
EMR EMx LL_EXTI_DisableEvent_0_31
LL_EXTI_IsEnabledEvent_0_31
Function name
__STATIC_INLINE uint32_t LL_EXTI_IsEnabledEvent_0_31
(uint32_t ExtiLine)
Function description
Indicate if ExtiLine Event request is enabled for Lines in range 0 to
31.
Parameters
ExtiLine: This parameter can be one of the following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_17
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
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LL_EXTI_LINE_23
LL_EXTI_LINE_24
LL_EXTI_LINE_25
LL_EXTI_LINE_26
LL_EXTI_LINE_27
LL_EXTI_LINE_28
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
LL_EXTI_LINE_ALL_0_31
Return values
State: of bit (1 or 0).
Notes
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
EMR EMx LL_EXTI_IsEnabledEvent_0_31
LL_EXTI_EnableRisingTrig_0_31
Function name
__STATIC_INLINE void LL_EXTI_EnableRisingTrig_0_31
(uint32_t ExtiLine)
Function description
Enable ExtiLine Rising Edge Trigger for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
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Return values
None
Notes
The configurable wakeup lines are edge-triggered. No glitch
must be generated on these lines. If a rising edge on a
configurable interrupt line occurs during a write operation in
the EXTI_RTSR register, the pending bit is not set. Rising and
falling edge triggers can be set for the same interrupt line. In
this case, both generate a trigger condition.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
RTSR RTx LL_EXTI_EnableRisingTrig_0_31
LL_EXTI_DisableRisingTrig_0_31
Function name
__STATIC_INLINE void LL_EXTI_DisableRisingTrig_0_31
(uint32_t ExtiLine)
Function description
Disable ExtiLine Rising Edge Trigger for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
None
Notes
The configurable wakeup lines are edge-triggered. No glitch
must be generated on these lines. If a rising edge on a
configurable interrupt line occurs during a write operation in
the EXTI_RTSR register, the pending bit is not set. Rising and
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falling edge triggers can be set for the same interrupt line. In
this case, both generate a trigger condition.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
RTSR RTx LL_EXTI_DisableRisingTrig_0_31
LL_EXTI_IsEnabledRisingTrig_0_31
Function name
__STATIC_INLINE uint32_t
LL_EXTI_IsEnabledRisingTrig_0_31 (uint32_t ExtiLine)
Function description
Check if rising edge trigger is enabled for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
State: of bit (1 or 0).
Notes
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
RTSR RTx LL_EXTI_IsEnabledRisingTrig_0_31
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LL_EXTI_EnableFallingTrig_0_31
Function name
__STATIC_INLINE void LL_EXTI_EnableFallingTrig_0_31
(uint32_t ExtiLine)
Function description
Enable ExtiLine Falling Edge Trigger for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
None
Notes
The configurable wakeup lines are edge-triggered. No glitch
must be generated on these lines. If a falling edge on a
configurable interrupt line occurs during a write operation in
the EXTI_FTSR register, the pending bit is not set. Rising and
falling edge triggers can be set for the same interrupt line. In
this case, both generate a trigger condition.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
FTSR FTx LL_EXTI_EnableFallingTrig_0_31
LL_EXTI_DisableFallingTrig_0_31
Function name
__STATIC_INLINE void LL_EXTI_DisableFallingTrig_0_31
(uint32_t ExtiLine)
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Function description
Disable ExtiLine Falling Edge Trigger for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
None
Notes
The configurable wakeup lines are edge-triggered. No glitch
must be generated on these lines. If a Falling edge on a
configurable interrupt line occurs during a write operation in
the EXTI_FTSR register, the pending bit is not set. Rising and
falling edge triggers can be set for the same interrupt line. In
this case, both generate a trigger condition.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
FTSR FTx LL_EXTI_DisableFallingTrig_0_31
LL_EXTI_IsEnabledFallingTrig_0_31
Function name
__STATIC_INLINE uint32_t
LL_EXTI_IsEnabledFallingTrig_0_31 (uint32_t ExtiLine)
Function description
Check if falling edge trigger is enabled for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
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LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
State: of bit (1 or 0).
Notes
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
FTSR FTx LL_EXTI_IsEnabledFallingTrig_0_31
LL_EXTI_GenerateSWI_0_31
Function name
__STATIC_INLINE void LL_EXTI_GenerateSWI_0_31 (uint32_t
ExtiLine)
Function description
Generate a software Interrupt Event for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
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LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
None
Notes
If the interrupt is enabled on this line in the EXTI_IMR, writing
a 1 to this bit when it is at '0' sets the corresponding pending
bit in EXTI_PR resulting in an interrupt request generation.
This bit is cleared by clearing the corresponding bit in the
EXTI_PR register (by writing a 1 into the bit)
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
SWIER SWIx LL_EXTI_GenerateSWI_0_31
LL_EXTI_IsActiveFlag_0_31
Function name
__STATIC_INLINE uint32_t LL_EXTI_IsActiveFlag_0_31
(uint32_t ExtiLine)
Function description
Check if the ExtLine Flag is set or not for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
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LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
State: of bit (1 or 0).
Notes
This bit is set when the selected edge event arrives on the
interrupt line. This bit is cleared by writing a 1 to the bit.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
PR PIFx LL_EXTI_IsActiveFlag_0_31
LL_EXTI_ReadFlag_0_31
Function name
__STATIC_INLINE uint32_t LL_EXTI_ReadFlag_0_31 (uint32_t
ExtiLine)
Function description
Read ExtLine Combination Flag for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
@note: This bit is set when the selected edge event arrives
on the interrupt
Notes
This bit is set when the selected edge event arrives on the
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interrupt line. This bit is cleared by writing a 1 to the bit.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
PR PIFx LL_EXTI_ReadFlag_0_31
LL_EXTI_ClearFlag_0_31
Function name
__STATIC_INLINE void LL_EXTI_ClearFlag_0_31 (uint32_t
ExtiLine)
Function description
Clear ExtLine Flags for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
LL_EXTI_LINE_29
LL_EXTI_LINE_30
LL_EXTI_LINE_31
Return values
None
Notes
This bit is set when the selected edge event arrives on the
interrupt line. This bit is cleared by writing a 1 to the bit.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
PR PIFx LL_EXTI_ClearFlag_0_31
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LL_EXTI_Init
Function name
uint32_t LL_EXTI_Init (LL_EXTI_InitTypeDef * EXTI_InitStruct)
Function description
Initialize the EXTI registers according to the specified parameters
in EXTI_InitStruct.
Parameters
EXTI_InitStruct: pointer to a LL_EXTI_InitTypeDef structure.
Return values
An: ErrorStatus enumeration value:
SUCCESS: EXTI registers are initialized
ERROR: not applicable
LL_EXTI_DeInit
Function name
uint32_t LL_EXTI_DeInit (void )
Function description
De-initialize the EXTI registers to their default reset values.
Return values
An: ErrorStatus enumeration value:
SUCCESS: EXTI registers are de-initialized
ERROR: not applicable
LL_EXTI_StructInit
Function name
void LL_EXTI_StructInit (LL_EXTI_InitTypeDef *
EXTI_InitStruct)
Function description
Set each LL_EXTI_InitTypeDef field to default value.
Parameters
EXTI_InitStruct: Pointer to a LL_EXTI_InitTypeDef structure.
Return values
None
61.3 EXTI Firmware driver defines
61.3.1 EXTI
LINE
LL_EXTI_LINE_0
Extended line 0
LL_EXTI_LINE_1
Extended line 1
LL_EXTI_LINE_2
Extended line 2
LL_EXTI_LINE_3
Extended line 3
LL_EXTI_LINE_4
Extended line 4
LL_EXTI_LINE_5
Extended line 5
LL_EXTI_LINE_6
Extended line 6
LL_EXTI_LINE_7
Extended line 7
LL_EXTI_LINE_8
Extended line 8
LL_EXTI_LINE_9
Extended line 9
LL_EXTI_LINE_10
Extended line 10
LL_EXTI_LINE_11
Extended line 11
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LL_EXTI_LINE_12
Extended line 12
LL_EXTI_LINE_13
Extended line 13
LL_EXTI_LINE_14
Extended line 14
LL_EXTI_LINE_15
Extended line 15
LL_EXTI_LINE_16
Extended line 16
LL_EXTI_LINE_17
Extended line 17
LL_EXTI_LINE_18
Extended line 18
LL_EXTI_LINE_19
Extended line 19
LL_EXTI_LINE_20
Extended line 20
LL_EXTI_LINE_21
Extended line 21
LL_EXTI_LINE_22
Extended line 22
LL_EXTI_LINE_23
Extended line 23
LL_EXTI_LINE_24
Extended line 24
LL_EXTI_LINE_25
Extended line 25
LL_EXTI_LINE_26
Extended line 26
LL_EXTI_LINE_28
Extended line 28
LL_EXTI_LINE_29
Extended line 29
LL_EXTI_LINE_ALL_0_31
All Extended line not reserved
LL_EXTI_LINE_ALL
All Extended line
LL_EXTI_LINE_NONE
None Extended line
Mode
LL_EXTI_MODE_IT
Interrupt Mode
LL_EXTI_MODE_EVENT
Event Mode
LL_EXTI_MODE_IT_EVENT
Interrupt & Event Mode
Edge Trigger
LL_EXTI_TRIGGER_NONE
No Trigger Mode
LL_EXTI_TRIGGER_RISING
Trigger Rising Mode
LL_EXTI_TRIGGER_FALLING
Trigger Falling Mode
LL_EXTI_TRIGGER_RISING_FALLING
Trigger Rising & Falling Mode
Common Write and read registers Macros
LL_EXTI_WriteReg
Description:
Write a value in EXTI register.
Parameters:
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
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LL_EXTI_ReadReg
Description:
Read a value in EXTI register.
Parameters:
__REG__: Register to be read
Return value:
Register: value
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62 LL GPIO Generic Driver
62.1 GPIO Firmware driver registers structures
62.1.1 LL_GPIO_InitTypeDef
Data Fields
uint32_t Pin
uint32_t Mode
uint32_t Speed
uint32_t OutputType
uint32_t Pull
uint32_t Alternate
Field Documentation
uint32_t LL_GPIO_InitTypeDef::Pin
Specifies the GPIO pins to be configured. This parameter can be any value of
GPIO_LL_EC_PIN
uint32_t LL_GPIO_InitTypeDef::Mode
Specifies the operating mode for the selected pins. This parameter can be a value of
GPIO_LL_EC_MODE.GPIO HW configuration can be modified afterwards using
unitary function LL_GPIO_SetPinMode().
uint32_t LL_GPIO_InitTypeDef::Speed
Specifies the speed for the selected pins. This parameter can be a value of
GPIO_LL_EC_SPEED.GPIO HW configuration can be modified afterwards using
unitary function LL_GPIO_SetPinSpeed().
uint32_t LL_GPIO_InitTypeDef::OutputType
Specifies the operating output type for the selected pins. This parameter can be a
value of GPIO_LL_EC_OUTPUT.GPIO HW configuration can be modified afterwards
using unitary function LL_GPIO_SetPinOutputType().
uint32_t LL_GPIO_InitTypeDef::Pull
Specifies the operating Pull-up/Pull down for the selected pins. This parameter can be
a value of GPIO_LL_EC_PULL.GPIO HW configuration can be modified afterwards
using unitary function LL_GPIO_SetPinPull().
uint32_t LL_GPIO_InitTypeDef::Alternate
Specifies the Peripheral to be connected to the selected pins. This parameter can be a
value of GPIO_LL_EC_AF.GPIO HW configuration can be modified afterwards using
unitary function LL_GPIO_SetAFPin_0_7() and LL_GPIO_SetAFPin_8_15().
62.2 GPIO Firmware driver API description
62.2.1 Detailed description of functions
LL_GPIO_SetPinMode
Function name
__STATIC_INLINE void LL_GPIO_SetPinMode (GPIO_TypeDef
* GPIOx, uint32_t Pin, uint32_t Mode)
Function description
Configure gpio mode for a dedicated pin on dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
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LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Mode: This parameter can be one of the following values:
LL_GPIO_MODE_INPUT
LL_GPIO_MODE_OUTPUT
LL_GPIO_MODE_ALTERNATE
LL_GPIO_MODE_ANALOG
Return values
None
Notes
I/O mode can be Input mode, General purpose output,
Alternate function mode or Analog.
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
MODER MODEy LL_GPIO_SetPinMode
LL_GPIO_GetPinMode
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetPinMode
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio mode for a dedicated pin on dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
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LL_GPIO_PIN_14
LL_GPIO_PIN_15
Return values
Returned: value can be one of the following values:
LL_GPIO_MODE_INPUT
LL_GPIO_MODE_OUTPUT
LL_GPIO_MODE_ALTERNATE
LL_GPIO_MODE_ANALOG
Notes
I/O mode can be Input mode, General purpose output,
Alternate function mode or Analog.
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
MODER MODEy LL_GPIO_GetPinMode
LL_GPIO_SetPinOutputType
Function name
__STATIC_INLINE void LL_GPIO_SetPinOutputType
(GPIO_TypeDef * GPIOx, uint32_t PinMask, uint32_t
OutputType)
Function description
Configure gpio output type for several pins on dedicated port.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
OutputType: This parameter can be one of the following
values:
LL_GPIO_OUTPUT_PUSHPULL
LL_GPIO_OUTPUT_OPENDRAIN
Return values
None
Notes
Output type as to be set when gpio pin is in output or
alternate modes. Possible type are Push-pull or Open-drain.
Reference Manual to
LL API cross
OTYPER OTy LL_GPIO_SetPinOutputType
UM1749
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DocID026232 Rev 6
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reference:
LL_GPIO_GetPinOutputType
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetPinOutputType
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio output type for several pins on dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
Returned: value can be one of the following values:
LL_GPIO_OUTPUT_PUSHPULL
LL_GPIO_OUTPUT_OPENDRAIN
Notes
Output type as to be set when gpio pin is in output or
alternate modes. Possible type are Push-pull or Open-drain.
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
OTYPER OTy LL_GPIO_GetPinOutputType
LL_GPIO_SetPinSpeed
Function name
__STATIC_INLINE void LL_GPIO_SetPinSpeed
(GPIO_TypeDef * GPIOx, uint32_t Pin, uint32_t Speed)
Function description
Configure gpio speed for a dedicated pin on dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
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LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Speed: This parameter can be one of the following values:
LL_GPIO_SPEED_FREQ_LOW
LL_GPIO_SPEED_FREQ_MEDIUM
LL_GPIO_SPEED_FREQ_HIGH
LL_GPIO_SPEED_FREQ_VERY_HIGH
Return values
None
Notes
I/O speed can be Low, Medium, Fast or High speed.
Warning: only one pin can be passed as parameter.
Refer to datasheet for frequency specifications and the power
supply and load conditions for each speed.
Reference Manual to
LL API cross
reference:
OSPEEDR OSPEEDy LL_GPIO_SetPinSpeed
LL_GPIO_GetPinSpeed
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetPinSpeed
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio speed for a dedicated pin on dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Return values
Returned: value can be one of the following values:
LL_GPIO_SPEED_FREQ_LOW
LL_GPIO_SPEED_FREQ_MEDIUM
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LL_GPIO_SPEED_FREQ_HIGH
LL_GPIO_SPEED_FREQ_VERY_HIGH
Notes
I/O speed can be Low, Medium, Fast or High speed.
Warning: only one pin can be passed as parameter.
Refer to datasheet for frequency specifications and the power
supply and load conditions for each speed.
Reference Manual to
LL API cross
reference:
OSPEEDR OSPEEDy LL_GPIO_GetPinSpeed
LL_GPIO_SetPinPull
Function name
__STATIC_INLINE void LL_GPIO_SetPinPull (GPIO_TypeDef *
GPIOx, uint32_t Pin, uint32_t Pull)
Function description
Configure gpio pull-up or pull-down for a dedicated pin on a
dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Pull: This parameter can be one of the following values:
LL_GPIO_PULL_NO
LL_GPIO_PULL_UP
LL_GPIO_PULL_DOWN
Return values
None
Notes
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
PUPDR PUPDy LL_GPIO_SetPinPull
LL_GPIO_GetPinPull
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetPinPull
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio pull-up or pull-down for a dedicated pin on a dedicated
LL GPIO Generic Driver
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port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Return values
Returned: value can be one of the following values:
LL_GPIO_PULL_NO
LL_GPIO_PULL_UP
LL_GPIO_PULL_DOWN
Notes
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
PUPDR PUPDy LL_GPIO_GetPinPull
LL_GPIO_SetAFPin_0_7
Function name
__STATIC_INLINE void LL_GPIO_SetAFPin_0_7
(GPIO_TypeDef * GPIOx, uint32_t Pin, uint32_t Alternate)
Function description
Configure gpio alternate function of a dedicated pin from 0 to 7 for
a dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
Alternate: This parameter can be one of the following
values:
LL_GPIO_AF_0
LL_GPIO_AF_1
LL_GPIO_AF_2
LL_GPIO_AF_3
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LL_GPIO_AF_4
LL_GPIO_AF_5
LL_GPIO_AF_6
LL_GPIO_AF_7
Return values
None
Notes
Possible values are from AF0 to AF7 depending on target.
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
AFRL AFSELy LL_GPIO_SetAFPin_0_7
LL_GPIO_GetAFPin_0_7
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_0_7
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio alternate function of a dedicated pin from 0 to 7 for a
dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
Return values
Returned: value can be one of the following values:
LL_GPIO_AF_0
LL_GPIO_AF_1
LL_GPIO_AF_2
LL_GPIO_AF_3
LL_GPIO_AF_4
LL_GPIO_AF_5
LL_GPIO_AF_6
LL_GPIO_AF_7
Reference Manual to
LL API cross
reference:
AFRL AFSELy LL_GPIO_GetAFPin_0_7
LL_GPIO_SetAFPin_8_15
Function name
__STATIC_INLINE void LL_GPIO_SetAFPin_8_15
(GPIO_TypeDef * GPIOx, uint32_t Pin, uint32_t Alternate)
Function description
Configure gpio alternate function of a dedicated pin from 8 to 15
for a dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_8
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LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Alternate: This parameter can be one of the following
values:
LL_GPIO_AF_0
LL_GPIO_AF_1
LL_GPIO_AF_2
LL_GPIO_AF_3
LL_GPIO_AF_4
LL_GPIO_AF_5
LL_GPIO_AF_6
LL_GPIO_AF_7
Return values
None
Notes
Possible values are from AF0 to AF7 depending on target.
Warning: only one pin can be passed as parameter.
Reference Manual to
LL API cross
reference:
AFRH AFSELy LL_GPIO_SetAFPin_8_15
LL_GPIO_GetAFPin_8_15
Function name
__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_8_15
(GPIO_TypeDef * GPIOx, uint32_t Pin)
Function description
Return gpio alternate function of a dedicated pin from 8 to 15 for a
dedicated port.
Parameters
GPIOx: GPIO Port
Pin: This parameter can be one of the following values:
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
Return values
Returned: value can be one of the following values:
LL_GPIO_AF_0
LL_GPIO_AF_1
LL_GPIO_AF_2
LL_GPIO_AF_3
LL_GPIO_AF_4
LL_GPIO_AF_5
LL_GPIO_AF_6
LL_GPIO_AF_7
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Notes
Possible values are from AF0 to AF7 depending on target.
Reference Manual to
LL API cross
reference:
AFRH AFSELy LL_GPIO_GetAFPin_8_15
LL_GPIO_LockPin
Function name
__STATIC_INLINE void LL_GPIO_LockPin (GPIO_TypeDef *
GPIOx, uint32_t PinMask)
Function description
Lock configuration of several pins for a dedicated port.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
None
Notes
When the lock sequence has been applied on a port bit, the
value of this port bit can no longer be modified until the next
reset.
Each lock bit freezes a specific configuration register (control
and alternate function registers).
Reference Manual to
LL API cross
reference:
LCKR LCKK LL_GPIO_LockPin
LL_GPIO_IsPinLocked
Function name
__STATIC_INLINE uint32_t LL_GPIO_IsPinLocked
(GPIO_TypeDef * GPIOx, uint32_t PinMask)
Function description
Return 1 if all pins passed as parameter, of a dedicated port, are
locked.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
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LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
LCKR LCKy LL_GPIO_IsPinLocked
LL_GPIO_IsAnyPinLocked
Function name
__STATIC_INLINE uint32_t LL_GPIO_IsAnyPinLocked
(GPIO_TypeDef * GPIOx)
Function description
Return 1 if one of the pin of a dedicated port is locked.
Parameters
GPIOx: GPIO Port
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
LCKR LCKK LL_GPIO_IsAnyPinLocked
LL_GPIO_ReadInputPort
Function name
__STATIC_INLINE uint32_t LL_GPIO_ReadInputPort
(GPIO_TypeDef * GPIOx)
Function description
Return full input data register value for a dedicated port.
Parameters
GPIOx: GPIO Port
Return values
Input: data register value of port
Reference Manual to
LL API cross
reference:
IDR IDy LL_GPIO_ReadInputPort
LL_GPIO_IsInputPinSet
Function name
__STATIC_INLINE uint32_t LL_GPIO_IsInputPinSet
(GPIO_TypeDef * GPIOx, uint32_t PinMask)
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Function description
Return if input data level for several pins of dedicated port is high
or low.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IDR IDy LL_GPIO_IsInputPinSet
LL_GPIO_WriteOutputPort
Function name
__STATIC_INLINE void LL_GPIO_WriteOutputPort
(GPIO_TypeDef * GPIOx, uint32_t PortValue)
Function description
Write output data register for the port.
Parameters
GPIOx: GPIO Port
PortValue: Level value for each pin of the port
Return values
None
Reference Manual to
LL API cross
reference:
ODR ODy LL_GPIO_WriteOutputPort
LL_GPIO_ReadOutputPort
Function name
__STATIC_INLINE uint32_t LL_GPIO_ReadOutputPort
(GPIO_TypeDef * GPIOx)
Function description
Return full output data register value for a dedicated port.
Parameters
GPIOx: GPIO Port
Return values
Output: data register value of port
Reference Manual to
LL API cross
ODR ODy LL_GPIO_ReadOutputPort
LL GPIO Generic Driver
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reference:
LL_GPIO_IsOutputPinSet
Function name
__STATIC_INLINE uint32_t LL_GPIO_IsOutputPinSet
(GPIO_TypeDef * GPIOx, uint32_t PinMask)
Function description
Return if input data level for several pins of dedicated port is high
or low.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ODR ODy LL_GPIO_IsOutputPinSet
LL_GPIO_SetOutputPin
Function name
__STATIC_INLINE void LL_GPIO_SetOutputPin
(GPIO_TypeDef * GPIOx, uint32_t PinMask)
Function description
Set several pins to high level on dedicated gpio port.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
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LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
None
Reference Manual to
LL API cross
reference:
BSRR BSy LL_GPIO_SetOutputPin
LL_GPIO_ResetOutputPin
Function name
__STATIC_INLINE void LL_GPIO_ResetOutputPin
(GPIO_TypeDef * GPIOx, uint32_t PinMask)
Function description
Set several pins to low level on dedicated gpio port.
Parameters
GPIOx: GPIO Port
PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
None
Reference Manual to
LL API cross
reference:
BRR BRy LL_GPIO_ResetOutputPin
LL_GPIO_TogglePin
Function name
__STATIC_INLINE void LL_GPIO_TogglePin (GPIO_TypeDef *
GPIOx, uint32_t PinMask)
Function description
Toggle data value for several pin of dedicated port.
Parameters
GPIOx: GPIO Port
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PinMask: This parameter can be a combination of the
following values:
LL_GPIO_PIN_0
LL_GPIO_PIN_1
LL_GPIO_PIN_2
LL_GPIO_PIN_3
LL_GPIO_PIN_4
LL_GPIO_PIN_5
LL_GPIO_PIN_6
LL_GPIO_PIN_7
LL_GPIO_PIN_8
LL_GPIO_PIN_9
LL_GPIO_PIN_10
LL_GPIO_PIN_11
LL_GPIO_PIN_12
LL_GPIO_PIN_13
LL_GPIO_PIN_14
LL_GPIO_PIN_15
LL_GPIO_PIN_ALL
Return values
None
Reference Manual to
LL API cross
reference:
ODR ODy LL_GPIO_TogglePin
LL_GPIO_DeInit
Function name
ErrorStatus LL_GPIO_DeInit (GPIO_TypeDef * GPIOx)
Function description
De-initialize GPIO registers (Registers restored to their default
values).
Parameters
GPIOx: GPIO Port
Return values
An: ErrorStatus enumeration value:
SUCCESS: GPIO registers are de-initialized
ERROR: Wrong GPIO Port
LL_GPIO_Init
Function name
ErrorStatus LL_GPIO_Init (GPIO_TypeDef * GPIOx,
LL_GPIO_InitTypeDef * GPIO_InitStruct)
Function description
Initialize GPIO registers according to the specified parameters in
GPIO_InitStruct.
Parameters
GPIOx: GPIO Port
GPIO_InitStruct: pointer to a LL_GPIO_InitTypeDef
structure that contains the configuration information for the
specified GPIO peripheral.
Return values
An: ErrorStatus enumeration value:
SUCCESS: GPIO registers are initialized according to
GPIO_InitStruct content
ERROR: Not applicable
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LL_GPIO_StructInit
Function name
void LL_GPIO_StructInit (LL_GPIO_InitTypeDef *
GPIO_InitStruct)
Function description
Set each LL_GPIO_InitTypeDef field to default value.
Parameters
GPIO_InitStruct: pointer to a LL_GPIO_InitTypeDef
structure whose fields will be set to default values.
Return values
None
62.3 GPIO Firmware driver defines
62.3.1 GPIO
Alternate Function
LL_GPIO_AF_0
Select alternate function 0
LL_GPIO_AF_1
Select alternate function 1
LL_GPIO_AF_2
Select alternate function 2
LL_GPIO_AF_3
Select alternate function 3
LL_GPIO_AF_4
Select alternate function 4
LL_GPIO_AF_5
Select alternate function 5
LL_GPIO_AF_6
Select alternate function 6
LL_GPIO_AF_7
Select alternate function 7
Mode
LL_GPIO_MODE_INPUT
Select input mode
LL_GPIO_MODE_OUTPUT
Select output mode
LL_GPIO_MODE_ALTERNATE
Select alternate function mode
LL_GPIO_MODE_ANALOG
Select analog mode
Output Type
LL_GPIO_OUTPUT_PUSHPULL
Select push-pull as output type
LL_GPIO_OUTPUT_OPENDRAIN
Select open-drain as output type
PIN
LL_GPIO_PIN_0
Select pin 0
LL_GPIO_PIN_1
Select pin 1
LL_GPIO_PIN_2
Select pin 2
LL_GPIO_PIN_3
Select pin 3
LL_GPIO_PIN_4
Select pin 4
LL_GPIO_PIN_5
Select pin 5
LL_GPIO_PIN_6
Select pin 6
LL_GPIO_PIN_7
Select pin 7
LL_GPIO_PIN_8
Select pin 8
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LL_GPIO_PIN_9
Select pin 9
LL_GPIO_PIN_10
Select pin 10
LL_GPIO_PIN_11
Select pin 11
LL_GPIO_PIN_12
Select pin 12
LL_GPIO_PIN_13
Select pin 13
LL_GPIO_PIN_14
Select pin 14
LL_GPIO_PIN_15
Select pin 15
LL_GPIO_PIN_ALL
Select all pins
Pull Up Pull Down
LL_GPIO_PULL_NO
Select I/O no pull
LL_GPIO_PULL_UP
Select I/O pull up
LL_GPIO_PULL_DOWN
Select I/O pull down
Output Speed
LL_GPIO_SPEED_FREQ_LOW
Select I/O low output speed
LL_GPIO_SPEED_FREQ_MEDIUM
Select I/O medium output speed
LL_GPIO_SPEED_FREQ_HIGH
Select I/O fast output speed
LL_GPIO_SPEED_FREQ_VERY_HIGH
Select I/O high output speed
Common Write and read registers Macros
LL_GPIO_WriteReg
Description:
Write a value in GPIO register.
Parameters:
__INSTANCE__: GPIO Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_GPIO_ReadReg
Description:
Read a value in GPIO register.
Parameters:
__INSTANCE__: GPIO Instance
__REG__: Register to be read
Return value:
Register: value
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GPIO Exported Constants
LL_GPIO_SPEED_LOW
LL_GPIO_SPEED_MEDIUM
LL_GPIO_SPEED_FAST
LL_GPIO_SPEED_HIGH
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63 LL I2C Generic Driver
63.1 I2C Firmware driver registers structures
63.1.1 LL_I2C_InitTypeDef
Data Fields
uint32_t PeripheralMode
uint32_t Timing
uint32_t AnalogFilter
uint32_t DigitalFilter
uint32_t OwnAddress1
uint32_t TypeAcknowledge
uint32_t OwnAddrSize
Field Documentation
uint32_t LL_I2C_InitTypeDef::PeripheralMode
Specifies the peripheral mode. This parameter can be a value of
I2C_LL_EC_PERIPHERAL_MODEThis feature can be modified afterwards using
unitary function LL_I2C_SetMode().
uint32_t LL_I2C_InitTypeDef::Timing
Specifies the SDA setup, hold time and the SCL high, low period values. This
parameter must be set by referring to the STM32CubeMX Tool and the helper macro
__LL_I2C_CONVERT_TIMINGS()This feature can be modified afterwards using
unitary function LL_I2C_SetTiming().
uint32_t LL_I2C_InitTypeDef::AnalogFilter
Enables or disables analog noise filter. This parameter can be a value of
I2C_LL_EC_ANALOGFILTER_SELECTIONThis feature can be modified afterwards
using unitary functions LL_I2C_EnableAnalogFilter() or
LL_I2C_DisableAnalogFilter().
uint32_t LL_I2C_InitTypeDef::DigitalFilter
Configures the digital noise filter. This parameter can be a number between Min_Data
= 0x00 and Max_Data = 0x0FThis feature can be modified afterwards using unitary
function LL_I2C_SetDigitalFilter().
uint32_t LL_I2C_InitTypeDef::OwnAddress1
Specifies the device own address 1. This parameter must be a value between
Min_Data = 0x00 and Max_Data = 0x3FFThis feature can be modified afterwards
using unitary function LL_I2C_SetOwnAddress1().
uint32_t LL_I2C_InitTypeDef::TypeAcknowledge
Specifies the ACKnowledge or Non ACKnowledge condition after the address receive
match code or next received byte. This parameter can be a value of
I2C_LL_EC_I2C_ACKNOWLEDGEThis feature can be modified afterwards using
unitary function LL_I2C_AcknowledgeNextData().
uint32_t LL_I2C_InitTypeDef::OwnAddrSize
Specifies the device own address 1 size (7-bit or 10-bit). This parameter can be a
value of I2C_LL_EC_OWNADDRESS1This feature can be modified afterwards using
unitary function LL_I2C_SetOwnAddress1().
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63.2 I2C Firmware driver API description
63.2.1 Detailed description of functions
LL_I2C_Enable
Function name
__STATIC_INLINE void LL_I2C_Enable (I2C_TypeDef * I2Cx)
Function description
Enable I2C peripheral (PE = 1).
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 PE LL_I2C_Enable
LL_I2C_Disable
Function name
__STATIC_INLINE void LL_I2C_Disable (I2C_TypeDef * I2Cx)
Function description
Disable I2C peripheral (PE = 0).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
When PE = 0, the I2C SCL and SDA lines are released.
Internal state machines and status bits are put back to their
reset value. When cleared, PE must be kept low for at least 3
APB clock cycles.
Reference Manual to
LL API cross
reference:
CR1 PE LL_I2C_Disable
LL_I2C_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabled (I2C_TypeDef *
I2Cx)
Function description
Check if the I2C peripheral is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 PE LL_I2C_IsEnabled
LL_I2C_ConfigFilters
Function name
__STATIC_INLINE void LL_I2C_ConfigFilters (I2C_TypeDef *
I2Cx, uint32_t AnalogFilter, uint32_t DigitalFilter)
Function description
Configure Noise Filters (Analog and Digital).
Parameters
I2Cx: I2C Instance.
AnalogFilter: This parameter can be one of the following
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LL_I2C_ANALOGFILTER_ENABLE
LL_I2C_ANALOGFILTER_DISABLE
DigitalFilter: This parameter must be a value between
Min_Data=0x00 (Digital filter disabled) and Max_Data=0x0F
(Digital filter enabled and filtering capability up to 15*ti2cclk).
This parameter is used to configure the digital noise filter on
SDA and SCL input. The digital filter will filter spikes with a
length of up to DNF[3:0]*ti2cclk.
Return values
None
Notes
If the analog filter is also enabled, the digital filter is added to
analog filter. The filters can only be programmed when the
I2C is disabled (PE = 0).
Reference Manual to
LL API cross
reference:
CR1 ANFOFF LL_I2C_ConfigFilters
CR1 DNF LL_I2C_ConfigFilters
LL_I2C_SetDigitalFilter
Function name
__STATIC_INLINE void LL_I2C_SetDigitalFilter (I2C_TypeDef *
I2Cx, uint32_t DigitalFilter)
Function description
Configure Digital Noise Filter.
Parameters
I2Cx: I2C Instance.
DigitalFilter: This parameter must be a value between
Min_Data=0x00 (Digital filter disabled) and Max_Data=0x0F
(Digital filter enabled and filtering capability up to 15*ti2cclk).
This parameter is used to configure the digital noise filter on
SDA and SCL input. The digital filter will filter spikes with a
length of up to DNF[3:0]*ti2cclk.
Return values
None
Notes
If the analog filter is also enabled, the digital filter is added to
analog filter. This filter can only be programmed when the I2C
is disabled (PE = 0).
Reference Manual to
LL API cross
reference:
CR1 DNF LL_I2C_SetDigitalFilter
LL_I2C_GetDigitalFilter
Function name
__STATIC_INLINE uint32_t LL_I2C_GetDigitalFilter
(I2C_TypeDef * I2Cx)
Function description
Get the current Digital Noise Filter configuration.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0xF
Reference Manual to
LL API cross
reference:
CR1 DNF LL_I2C_GetDigitalFilter
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LL_I2C_EnableAnalogFilter
Function name
__STATIC_INLINE void LL_I2C_EnableAnalogFilter
(I2C_TypeDef * I2Cx)
Function description
Enable Analog Noise Filter.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
This filter can only be programmed when the I2C is disabled
(PE = 0).
Reference Manual to
LL API cross
reference:
CR1 ANFOFF LL_I2C_EnableAnalogFilter
LL_I2C_DisableAnalogFilter
Function name
__STATIC_INLINE void LL_I2C_DisableAnalogFilter
(I2C_TypeDef * I2Cx)
Function description
Disable Analog Noise Filter.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
This filter can only be programmed when the I2C is disabled
(PE = 0).
Reference Manual to
LL API cross
reference:
CR1 ANFOFF LL_I2C_DisableAnalogFilter
LL_I2C_IsEnabledAnalogFilter
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAnalogFilter
(I2C_TypeDef * I2Cx)
Function description
Check if Analog Noise Filter is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 ANFOFF LL_I2C_IsEnabledAnalogFilter
LL_I2C_EnableDMAReq_TX
Function name
__STATIC_INLINE void LL_I2C_EnableDMAReq_TX
(I2C_TypeDef * I2Cx)
Function description
Enable DMA transmission requests.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
CR1 TXDMAEN LL_I2C_EnableDMAReq_TX
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LL_I2C_DisableDMAReq_TX
Function name
__STATIC_INLINE void LL_I2C_DisableDMAReq_TX
(I2C_TypeDef * I2Cx)
Function description
Disable DMA transmission requests.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXDMAEN LL_I2C_DisableDMAReq_TX
LL_I2C_IsEnabledDMAReq_TX
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_TX
(I2C_TypeDef * I2Cx)
Function description
Check if DMA transmission requests are enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TXDMAEN LL_I2C_IsEnabledDMAReq_TX
LL_I2C_EnableDMAReq_RX
Function name
__STATIC_INLINE void LL_I2C_EnableDMAReq_RX
(I2C_TypeDef * I2Cx)
Function description
Enable DMA reception requests.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXDMAEN LL_I2C_EnableDMAReq_RX
LL_I2C_DisableDMAReq_RX
Function name
__STATIC_INLINE void LL_I2C_DisableDMAReq_RX
(I2C_TypeDef * I2Cx)
Function description
Disable DMA reception requests.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
CR1 RXDMAEN LL_I2C_DisableDMAReq_RX
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LL_I2C_IsEnabledDMAReq_RX
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_RX
(I2C_TypeDef * I2Cx)
Function description
Check if DMA reception requests are enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 RXDMAEN LL_I2C_IsEnabledDMAReq_RX
LL_I2C_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_I2C_DMA_GetRegAddr
(I2C_TypeDef * I2Cx, uint32_t Direction)
Function description
Get the data register address used for DMA transfer.
Parameters
I2Cx: I2C Instance
Direction: This parameter can be one of the following
values:
LL_I2C_DMA_REG_DATA_TRANSMIT
LL_I2C_DMA_REG_DATA_RECEIVE
Return values
Address: of data register
Reference Manual to
LL API cross
reference:
TXDR TXDATA LL_I2C_DMA_GetRegAddr
RXDR RXDATA LL_I2C_DMA_GetRegAddr
LL_I2C_EnableClockStretching
Function name
__STATIC_INLINE void LL_I2C_EnableClockStretching
(I2C_TypeDef * I2Cx)
Function description
Enable Clock stretching.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
This bit can only be programmed when the I2C is disabled
(PE = 0).
Reference Manual to
LL API cross
reference:
CR1 NOSTRETCH LL_I2C_EnableClockStretching
LL_I2C_DisableClockStretching
Function name
__STATIC_INLINE void LL_I2C_DisableClockStretching
(I2C_TypeDef * I2Cx)
Function description
Disable Clock stretching.
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Parameters
I2Cx: I2C Instance.
Return values
None
Notes
This bit can only be programmed when the I2C is disabled
(PE = 0).
Reference Manual to
LL API cross
reference:
CR1 NOSTRETCH LL_I2C_DisableClockStretching
LL_I2C_IsEnabledClockStretching
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledClockStretching
(I2C_TypeDef * I2Cx)
Function description
Check if Clock stretching is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 NOSTRETCH LL_I2C_IsEnabledClockStretching
LL_I2C_EnableSlaveByteControl
Function name
__STATIC_INLINE void LL_I2C_EnableSlaveByteControl
(I2C_TypeDef * I2Cx)
Function description
Enable hardware byte control in slave mode.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 SBC LL_I2C_EnableSlaveByteControl
LL_I2C_DisableSlaveByteControl
Function name
__STATIC_INLINE void LL_I2C_DisableSlaveByteControl
(I2C_TypeDef * I2Cx)
Function description
Disable hardware byte control in slave mode.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 SBC LL_I2C_DisableSlaveByteControl
LL_I2C_IsEnabledSlaveByteControl
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsEnabledSlaveByteControl (I2C_TypeDef * I2Cx)
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Function description
Check if hardware byte control in slave mode is enabled or
disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 SBC LL_I2C_IsEnabledSlaveByteControl
LL_I2C_EnableWakeUpFromStop
Function name
__STATIC_INLINE void LL_I2C_EnableWakeUpFromStop
(I2C_TypeDef * I2Cx)
Function description
Enable Wakeup from STOP.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can
be used to check whether or not WakeUpFromStop feature is
supported by the I2Cx Instance.
This bit can only be programmed when Digital Filter is
disabled.
Reference Manual to
LL API cross
reference:
CR1 WUPEN LL_I2C_EnableWakeUpFromStop
LL_I2C_DisableWakeUpFromStop
Function name
__STATIC_INLINE void LL_I2C_DisableWakeUpFromStop
(I2C_TypeDef * I2Cx)
Function description
Disable Wakeup from STOP.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can
be used to check whether or not WakeUpFromStop feature is
supported by the I2Cx Instance.
Reference Manual to
LL API cross
reference:
CR1 WUPEN LL_I2C_DisableWakeUpFromStop
LL_I2C_IsEnabledWakeUpFromStop
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsEnabledWakeUpFromStop (I2C_TypeDef * I2Cx)
Function description
Check if Wakeup from STOP is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
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Notes
Macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can
be used to check whether or not WakeUpFromStop feature is
supported by the I2Cx Instance.
Reference Manual to
LL API cross
reference:
CR1 WUPEN LL_I2C_IsEnabledWakeUpFromStop
LL_I2C_EnableGeneralCall
Function name
__STATIC_INLINE void LL_I2C_EnableGeneralCall
(I2C_TypeDef * I2Cx)
Function description
Enable General Call.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
When enabled the Address 0x00 is ACKed.
Reference Manual to
LL API cross
reference:
CR1 GCEN LL_I2C_EnableGeneralCall
LL_I2C_DisableGeneralCall
Function name
__STATIC_INLINE void LL_I2C_DisableGeneralCall
(I2C_TypeDef * I2Cx)
Function description
Disable General Call.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
When disabled the Address 0x00 is NACKed.
Reference Manual to
LL API cross
reference:
CR1 GCEN LL_I2C_DisableGeneralCall
LL_I2C_IsEnabledGeneralCall
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledGeneralCall
(I2C_TypeDef * I2Cx)
Function description
Check if General Call is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 GCEN LL_I2C_IsEnabledGeneralCall
LL_I2C_SetMasterAddressingMode
Function name
__STATIC_INLINE void LL_I2C_SetMasterAddressingMode
(I2C_TypeDef * I2Cx, uint32_t AddressingMode)
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Function description
Configure the Master to operate in 7-bit or 10-bit addressing mode.
Parameters
I2Cx: I2C Instance.
AddressingMode: This parameter can be one of the
following values:
LL_I2C_ADDRESSING_MODE_7BIT
LL_I2C_ADDRESSING_MODE_10BIT
Return values
None
Notes
Changing this bit is not allowed, when the START bit is set.
Reference Manual to
LL API cross
reference:
CR2 ADD10 LL_I2C_SetMasterAddressingMode
LL_I2C_GetMasterAddressingMode
Function name
__STATIC_INLINE uint32_t
LL_I2C_GetMasterAddressingMode (I2C_TypeDef * I2Cx)
Function description
Get the Master addressing mode.
Parameters
I2Cx: I2C Instance.
Return values
Returned: value can be one of the following values:
LL_I2C_ADDRESSING_MODE_7BIT
LL_I2C_ADDRESSING_MODE_10BIT
Reference Manual to
LL API cross
reference:
CR2 ADD10 LL_I2C_GetMasterAddressingMode
LL_I2C_SetOwnAddress1
Function name
__STATIC_INLINE void LL_I2C_SetOwnAddress1
(I2C_TypeDef * I2Cx, uint32_t OwnAddress1, uint32_t
OwnAddrSize)
Function description
Set the Own Address1.
Parameters
I2Cx: I2C Instance.
OwnAddress1: This parameter must be a value between
Min_Data=0 and Max_Data=0x3FF.
OwnAddrSize: This parameter can be one of the following
values:
LL_I2C_OWNADDRESS1_7BIT
LL_I2C_OWNADDRESS1_10BIT
Return values
None
Reference Manual to
LL API cross
reference:
OAR1 OA1 LL_I2C_SetOwnAddress1
OAR1 OA1MODE LL_I2C_SetOwnAddress1
LL_I2C_EnableOwnAddress1
Function name
__STATIC_INLINE void LL_I2C_EnableOwnAddress1
(I2C_TypeDef * I2Cx)
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Function description
Enable acknowledge on Own Address1 match address.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
OAR1 OA1EN LL_I2C_EnableOwnAddress1
LL_I2C_DisableOwnAddress1
Function name
__STATIC_INLINE void LL_I2C_DisableOwnAddress1
(I2C_TypeDef * I2Cx)
Function description
Disable acknowledge on Own Address1 match address.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
OAR1 OA1EN LL_I2C_DisableOwnAddress1
LL_I2C_IsEnabledOwnAddress1
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress1
(I2C_TypeDef * I2Cx)
Function description
Check if Own Address1 acknowledge is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
OAR1 OA1EN LL_I2C_IsEnabledOwnAddress1
LL_I2C_SetOwnAddress2
Function name
__STATIC_INLINE void LL_I2C_SetOwnAddress2
(I2C_TypeDef * I2Cx, uint32_t OwnAddress2, uint32_t
OwnAddrMask)
Function description
Set the 7bits Own Address2.
Parameters
I2Cx: I2C Instance.
OwnAddress2: Value between Min_Data=0 and
Max_Data=0x7F.
OwnAddrMask: This parameter can be one of the following
values:
LL_I2C_OWNADDRESS2_NOMASK
LL_I2C_OWNADDRESS2_MASK01
LL_I2C_OWNADDRESS2_MASK02
LL_I2C_OWNADDRESS2_MASK03
LL_I2C_OWNADDRESS2_MASK04
LL_I2C_OWNADDRESS2_MASK05
LL_I2C_OWNADDRESS2_MASK06
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LL_I2C_OWNADDRESS2_MASK07
Return values
None
Notes
This action has no effect if own address2 is enabled.
Reference Manual to
LL API cross
reference:
OAR2 OA2 LL_I2C_SetOwnAddress2
OAR2 OA2MSK LL_I2C_SetOwnAddress2
LL_I2C_EnableOwnAddress2
Function name
__STATIC_INLINE void LL_I2C_EnableOwnAddress2
(I2C_TypeDef * I2Cx)
Function description
Enable acknowledge on Own Address2 match address.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
OAR2 OA2EN LL_I2C_EnableOwnAddress2
LL_I2C_DisableOwnAddress2
Function name
__STATIC_INLINE void LL_I2C_DisableOwnAddress2
(I2C_TypeDef * I2Cx)
Function description
Disable acknowledge on Own Address2 match address.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
OAR2 OA2EN LL_I2C_DisableOwnAddress2
LL_I2C_IsEnabledOwnAddress2
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress2
(I2C_TypeDef * I2Cx)
Function description
Check if Own Address1 acknowledge is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
OAR2 OA2EN LL_I2C_IsEnabledOwnAddress2
LL_I2C_SetTiming
Function name
__STATIC_INLINE void LL_I2C_SetTiming (I2C_TypeDef *
I2Cx, uint32_t Timing)
Function description
Configure the SDA setup, hold time and the SCL high, low period.
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Parameters
I2Cx: I2C Instance.
Timing: This parameter must be a value between
Min_Data=0 and Max_Data=0xFFFFFFFF.
Return values
None
Notes
This bit can only be programmed when the I2C is disabled
(PE = 0).
This parameter is computed with the STM32CubeMX Tool.
Reference Manual to
LL API cross
reference:
TIMINGR TIMINGR LL_I2C_SetTiming
LL_I2C_GetTimingPrescaler
Function name
__STATIC_INLINE uint32_t LL_I2C_GetTimingPrescaler
(I2C_TypeDef * I2Cx)
Function description
Get the Timing Prescaler setting.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0xF
Reference Manual to
LL API cross
reference:
TIMINGR PRESC LL_I2C_GetTimingPrescaler
LL_I2C_GetClockLowPeriod
Function name
__STATIC_INLINE uint32_t LL_I2C_GetClockLowPeriod
(I2C_TypeDef * I2Cx)
Function description
Get the SCL low period setting.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
LL API cross
reference:
TIMINGR SCLL LL_I2C_GetClockLowPeriod
LL_I2C_GetClockHighPeriod
Function name
__STATIC_INLINE uint32_t LL_I2C_GetClockHighPeriod
(I2C_TypeDef * I2Cx)
Function description
Get the SCL high period setting.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
LL API cross
reference:
TIMINGR SCLH LL_I2C_GetClockHighPeriod
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LL_I2C_GetDataHoldTime
Function name
__STATIC_INLINE uint32_t LL_I2C_GetDataHoldTime
(I2C_TypeDef * I2Cx)
Function description
Get the SDA hold time.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0xF
Reference Manual to
LL API cross
reference:
TIMINGR SDADEL LL_I2C_GetDataHoldTime
LL_I2C_GetDataSetupTime
Function name
__STATIC_INLINE uint32_t LL_I2C_GetDataSetupTime
(I2C_TypeDef * I2Cx)
Function description
Get the SDA setup time.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0xF
Reference Manual to
LL API cross
reference:
TIMINGR SCLDEL LL_I2C_GetDataSetupTime
LL_I2C_SetMode
Function name
__STATIC_INLINE void LL_I2C_SetMode (I2C_TypeDef * I2Cx,
uint32_t PeripheralMode)
Function description
Configure peripheral mode.
Parameters
I2Cx: I2C Instance.
PeripheralMode: This parameter can be one of the following
values:
LL_I2C_MODE_I2C
LL_I2C_MODE_SMBUS_HOST
LL_I2C_MODE_SMBUS_DEVICE
LL_I2C_MODE_SMBUS_DEVICE_ARP
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 SMBHEN LL_I2C_SetMode
CR1 SMBDEN LL_I2C_SetMode
LL_I2C_GetMode
Function name
__STATIC_INLINE uint32_t LL_I2C_GetMode (I2C_TypeDef *
I2Cx)
Function description
Get peripheral mode.
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Parameters
I2Cx: I2C Instance.
Return values
Returned: value can be one of the following values:
LL_I2C_MODE_I2C
LL_I2C_MODE_SMBUS_HOST
LL_I2C_MODE_SMBUS_DEVICE
LL_I2C_MODE_SMBUS_DEVICE_ARP
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 SMBHEN LL_I2C_GetMode
CR1 SMBDEN LL_I2C_GetMode
LL_I2C_EnableSMBusAlert
Function name
__STATIC_INLINE void LL_I2C_EnableSMBusAlert
(I2C_TypeDef * I2Cx)
Function description
Enable SMBus alert (Host or Device mode)
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
SMBus Device mode: SMBus Alert pin is drived low and Alert
Response Address Header acknowledge is enabled. SMBus
Host mode:SMBus Alert pin management is supported.
Reference Manual to
LL API cross
reference:
CR1 ALERTEN LL_I2C_EnableSMBusAlert
LL_I2C_DisableSMBusAlert
Function name
__STATIC_INLINE void LL_I2C_DisableSMBusAlert
(I2C_TypeDef * I2Cx)
Function description
Disable SMBus alert (Host or Device mode)
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
SMBus Device mode: SMBus Alert pin is not drived (can be
used as a standard GPIO) and Alert Response Address
Header acknowledge is disabled. SMBus Host mode:SMBus
Alert pin management is not supported.
Reference Manual to
LL API cross
reference:
CR1 ALERTEN LL_I2C_DisableSMBusAlert
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LL_I2C_IsEnabledSMBusAlert
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusAlert
(I2C_TypeDef * I2Cx)
Function description
Check if SMBus alert (Host or Device mode) is enabled or
disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 ALERTEN LL_I2C_IsEnabledSMBusAlert
LL_I2C_EnableSMBusPEC
Function name
__STATIC_INLINE void LL_I2C_EnableSMBusPEC
(I2C_TypeDef * I2Cx)
Function description
Enable SMBus Packet Error Calculation (PEC).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 PECEN LL_I2C_EnableSMBusPEC
LL_I2C_DisableSMBusPEC
Function name
__STATIC_INLINE void LL_I2C_DisableSMBusPEC
(I2C_TypeDef * I2Cx)
Function description
Disable SMBus Packet Error Calculation (PEC).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 PECEN LL_I2C_DisableSMBusPEC
LL_I2C_IsEnabledSMBusPEC
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPEC
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(I2C_TypeDef * I2Cx)
Function description
Check if SMBus Packet Error Calculation (PEC) is enabled or
disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 PECEN LL_I2C_IsEnabledSMBusPEC
LL_I2C_ConfigSMBusTimeout
Function name
__STATIC_INLINE void LL_I2C_ConfigSMBusTimeout
(I2C_TypeDef * I2Cx, uint32_t TimeoutA, uint32_t TimeoutAMode,
uint32_t TimeoutB)
Function
description
Configure the SMBus Clock Timeout.
Parameters
I2Cx: I2C Instance.
TimeoutA: This parameter must be a value between
Min_Data=0 and Max_Data=0xFFF.
TimeoutAMode: This parameter can be one of the following
values:
LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
TimeoutB:
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx Instance.
This configuration can only be programmed when associated
Timeout is disabled (TimeoutA and/orTimeoutB).
Reference
Manual to LL API
cross reference:
TIMEOUTR TIMEOUTA LL_I2C_ConfigSMBusTimeout
TIMEOUTR TIDLE LL_I2C_ConfigSMBusTimeout
TIMEOUTR TIMEOUTB LL_I2C_ConfigSMBusTimeout
LL_I2C_SetSMBusTimeoutA
Function name
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutA
(I2C_TypeDef * I2Cx, uint32_t TimeoutA)
Function description
Configure the SMBus Clock TimeoutA (SCL low timeout or SCL
and SDA high timeout depends on TimeoutA mode).
Parameters
I2Cx: I2C Instance.
TimeoutA: This parameter must be a value between
Min_Data=0 and Max_Data=0xFFF.
Return values
None
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Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
These bits can only be programmed when TimeoutA is
disabled.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMEOUTA LL_I2C_SetSMBusTimeoutA
LL_I2C_GetSMBusTimeoutA
Function name
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutA
(I2C_TypeDef * I2Cx)
Function description
Get the SMBus Clock TimeoutA setting.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0 and Max_Data=0xFFF
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMEOUTA LL_I2C_GetSMBusTimeoutA
LL_I2C_SetSMBusTimeoutAMode
Function name
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutAMode
(I2C_TypeDef * I2Cx, uint32_t TimeoutAMode)
Function
description
Set the SMBus Clock TimeoutA mode.
Parameters
I2Cx: I2C Instance.
TimeoutAMode: This parameter can be one of the following
values:
LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx Instance.
This bit can only be programmed when TimeoutA is disabled.
Reference
Manual to LL API
cross reference:
TIMEOUTR TIDLE LL_I2C_SetSMBusTimeoutAMode
LL_I2C_GetSMBusTimeoutAMode
Function name
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutAMode
(I2C_TypeDef * I2Cx)
Function
Get the SMBus Clock TimeoutA mode.
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description
Parameters
I2Cx: I2C Instance.
Return values
Returned: value can be one of the following values:
LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx Instance.
Reference
Manual to LL API
cross reference:
TIMEOUTR TIDLE LL_I2C_GetSMBusTimeoutAMode
LL_I2C_SetSMBusTimeoutB
Function name
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutB
(I2C_TypeDef * I2Cx, uint32_t TimeoutB)
Function description
Configure the SMBus Extended Cumulative Clock TimeoutB
(Master or Slave mode).
Parameters
I2Cx: I2C Instance.
TimeoutB: This parameter must be a value between
Min_Data=0 and Max_Data=0xFFF.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
These bits can only be programmed when TimeoutB is
disabled.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMEOUTB LL_I2C_SetSMBusTimeoutB
LL_I2C_GetSMBusTimeoutB
Function name
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutB
(I2C_TypeDef * I2Cx)
Function description
Get the SMBus Extented Cumulative Clock TimeoutB setting.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0 and Max_Data=0xFFF
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMEOUTB LL_I2C_GetSMBusTimeoutB
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LL_I2C_EnableSMBusTimeout
Function name
__STATIC_INLINE void LL_I2C_EnableSMBusTimeout
(I2C_TypeDef * I2Cx, uint32_t ClockTimeout)
Function description
Enable the SMBus Clock Timeout.
Parameters
I2Cx: I2C Instance.
ClockTimeout: This parameter can be one of the following
values:
LL_I2C_SMBUS_TIMEOUTA
LL_I2C_SMBUS_TIMEOUTB
LL_I2C_SMBUS_ALL_TIMEOUT
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMOUTEN LL_I2C_EnableSMBusTimeout
TIMEOUTR TEXTEN LL_I2C_EnableSMBusTimeout
LL_I2C_DisableSMBusTimeout
Function name
__STATIC_INLINE void LL_I2C_DisableSMBusTimeout
(I2C_TypeDef * I2Cx, uint32_t ClockTimeout)
Function description
Disable the SMBus Clock Timeout.
Parameters
I2Cx: I2C Instance.
ClockTimeout: This parameter can be one of the following
values:
LL_I2C_SMBUS_TIMEOUTA
LL_I2C_SMBUS_TIMEOUTB
LL_I2C_SMBUS_ALL_TIMEOUT
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMOUTEN LL_I2C_DisableSMBusTimeout
TIMEOUTR TEXTEN LL_I2C_DisableSMBusTimeout
LL_I2C_IsEnabledSMBusTimeout
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusTimeout
(I2C_TypeDef * I2Cx, uint32_t ClockTimeout)
Function description
Check if the SMBus Clock Timeout is enabled or disabled.
Parameters
I2Cx: I2C Instance.
ClockTimeout: This parameter can be one of the following
values:
LL_I2C_SMBUS_TIMEOUTA
LL_I2C_SMBUS_TIMEOUTB
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LL_I2C_SMBUS_ALL_TIMEOUT
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
TIMEOUTR TIMOUTEN LL_I2C_IsEnabledSMBusTimeout
TIMEOUTR TEXTEN LL_I2C_IsEnabledSMBusTimeout
LL_I2C_EnableIT_TX
Function name
__STATIC_INLINE void LL_I2C_EnableIT_TX (I2C_TypeDef *
I2Cx)
Function description
Enable TXIS interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXIE LL_I2C_EnableIT_TX
LL_I2C_DisableIT_TX
Function name
__STATIC_INLINE void LL_I2C_DisableIT_TX (I2C_TypeDef *
I2Cx)
Function description
Disable TXIS interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXIE LL_I2C_DisableIT_TX
LL_I2C_IsEnabledIT_TX
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TX
(I2C_TypeDef * I2Cx)
Function description
Check if the TXIS Interrupt is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TXIE LL_I2C_IsEnabledIT_TX
LL_I2C_EnableIT_RX
Function name
__STATIC_INLINE void LL_I2C_EnableIT_RX (I2C_TypeDef *
I2Cx)
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Function description
Enable RXNE interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXIE LL_I2C_EnableIT_RX
LL_I2C_DisableIT_RX
Function name
__STATIC_INLINE void LL_I2C_DisableIT_RX (I2C_TypeDef *
I2Cx)
Function description
Disable RXNE interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXIE LL_I2C_DisableIT_RX
LL_I2C_IsEnabledIT_RX
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_RX
(I2C_TypeDef * I2Cx)
Function description
Check if the RXNE Interrupt is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 RXIE LL_I2C_IsEnabledIT_RX
LL_I2C_EnableIT_ADDR
Function name
__STATIC_INLINE void LL_I2C_EnableIT_ADDR (I2C_TypeDef
* I2Cx)
Function description
Enable Address match interrupt (slave mode only).
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 ADDRIE LL_I2C_EnableIT_ADDR
LL_I2C_DisableIT_ADDR
Function name
__STATIC_INLINE void LL_I2C_DisableIT_ADDR (I2C_TypeDef
* I2Cx)
Function description
Disable Address match interrupt (slave mode only).
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Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 ADDRIE LL_I2C_DisableIT_ADDR
LL_I2C_IsEnabledIT_ADDR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ADDR
(I2C_TypeDef * I2Cx)
Function description
Check if Address match interrupt is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 ADDRIE LL_I2C_IsEnabledIT_ADDR
LL_I2C_EnableIT_NACK
Function name
__STATIC_INLINE void LL_I2C_EnableIT_NACK (I2C_TypeDef
* I2Cx)
Function description
Enable Not acknowledge received interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 NACKIE LL_I2C_EnableIT_NACK
LL_I2C_DisableIT_NACK
Function name
__STATIC_INLINE void LL_I2C_DisableIT_NACK (I2C_TypeDef
* I2Cx)
Function description
Disable Not acknowledge received interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 NACKIE LL_I2C_DisableIT_NACK
LL_I2C_IsEnabledIT_NACK
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_NACK
(I2C_TypeDef * I2Cx)
Function description
Check if Not acknowledge received interrupt is enabled or
disabled.
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Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 NACKIE LL_I2C_IsEnabledIT_NACK
LL_I2C_EnableIT_STOP
Function name
__STATIC_INLINE void LL_I2C_EnableIT_STOP (I2C_TypeDef
* I2Cx)
Function description
Enable STOP detection interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 STOPIE LL_I2C_EnableIT_STOP
LL_I2C_DisableIT_STOP
Function name
__STATIC_INLINE void LL_I2C_DisableIT_STOP (I2C_TypeDef
* I2Cx)
Function description
Disable STOP detection interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR1 STOPIE LL_I2C_DisableIT_STOP
LL_I2C_IsEnabledIT_STOP
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_STOP
(I2C_TypeDef * I2Cx)
Function description
Check if STOP detection interrupt is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 STOPIE LL_I2C_IsEnabledIT_STOP
LL_I2C_EnableIT_TC
Function name
__STATIC_INLINE void LL_I2C_EnableIT_TC (I2C_TypeDef *
I2Cx)
Function description
Enable Transfer Complete interrupt.
Parameters
I2Cx: I2C Instance.
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Return values
None
Notes
Any of these events will generate interrupt : Transfer
Complete (TC) Transfer Complete Reload (TCR)
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_I2C_EnableIT_TC
LL_I2C_DisableIT_TC
Function name
__STATIC_INLINE void LL_I2C_DisableIT_TC (I2C_TypeDef *
I2Cx)
Function description
Disable Transfer Complete interrupt.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Any of these events will generate interrupt : Transfer
Complete (TC) Transfer Complete Reload (TCR)
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_I2C_DisableIT_TC
LL_I2C_IsEnabledIT_TC
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TC
(I2C_TypeDef * I2Cx)
Function description
Check if Transfer Complete interrupt is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_I2C_IsEnabledIT_TC
LL_I2C_EnableIT_ERR
Function name
__STATIC_INLINE void LL_I2C_EnableIT_ERR (I2C_TypeDef *
I2Cx)
Function description
Enable Error interrupts.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Any of these errors will generate interrupt : Arbitration Loss
(ARLO) Bus Error detection (BERR) Overrun/Underrun (OVR)
SMBus Timeout detection (TIMEOUT) SMBus PEC error
detection (PECERR) SMBus Alert pin event detection
(ALERT)
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Reference Manual to
LL API cross
reference:
CR1 ERRIE LL_I2C_EnableIT_ERR
LL_I2C_DisableIT_ERR
Function name
__STATIC_INLINE void LL_I2C_DisableIT_ERR (I2C_TypeDef *
I2Cx)
Function description
Disable Error interrupts.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Any of these errors will generate interrupt : Arbitration Loss
(ARLO) Bus Error detection (BERR) Overrun/Underrun (OVR)
SMBus Timeout detection (TIMEOUT) SMBus PEC error
detection (PECERR) SMBus Alert pin event detection
(ALERT)
Reference Manual to
LL API cross
reference:
CR1 ERRIE LL_I2C_DisableIT_ERR
LL_I2C_IsEnabledIT_ERR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ERR
(I2C_TypeDef * I2Cx)
Function description
Check if Error interrupts are enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 ERRIE LL_I2C_IsEnabledIT_ERR
LL_I2C_IsActiveFlag_TXE
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXE
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Transmit data register empty flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: When next data is written in Transmit data register.
SET: When Transmit data register is empty.
Reference Manual to
LL API cross
reference:
ISR TXE LL_I2C_IsActiveFlag_TXE
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LL_I2C_IsActiveFlag_TXIS
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXIS
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Transmit interrupt flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: When next data is written in Transmit data register.
SET: When Transmit data register is empty.
Reference Manual to
LL API cross
reference:
ISR TXIS LL_I2C_IsActiveFlag_TXIS
LL_I2C_IsActiveFlag_RXNE
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_RXNE
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Receive data register not empty flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: When Receive data register is read. SET: When the
received data is copied in Receive data register.
Reference Manual to
LL API cross
reference:
ISR RXNE LL_I2C_IsActiveFlag_RXNE
LL_I2C_IsActiveFlag_ADDR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADDR
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Address matched flag (slave mode).
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When the received slave
address matched with one of the enabled slave address.
Reference Manual to
LL API cross
reference:
ISR ADDR LL_I2C_IsActiveFlag_ADDR
LL_I2C_IsActiveFlag_NACK
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_NACK
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Not Acknowledge received flag.
Parameters
I2Cx: I2C Instance.
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Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When a NACK is received
after a byte transmission.
Reference Manual to
LL API cross
reference:
ISR NACKF LL_I2C_IsActiveFlag_NACK
LL_I2C_IsActiveFlag_STOP
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_STOP
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Stop detection flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When a Stop condition is
detected.
Reference Manual to
LL API cross
reference:
ISR STOPF LL_I2C_IsActiveFlag_STOP
LL_I2C_IsActiveFlag_TC
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TC
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Transfer complete flag (master mode).
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When RELOAD=0,
AUTOEND=0 and NBYTES date have been transferred.
Reference Manual to
LL API cross
reference:
ISR TC LL_I2C_IsActiveFlag_TC
LL_I2C_IsActiveFlag_TCR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TCR
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Transfer complete flag (master mode).
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When RELOAD=1 and
NBYTES date have been transferred.
Reference Manual to
LL API cross
reference:
ISR TCR LL_I2C_IsActiveFlag_TCR
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LL_I2C_IsActiveFlag_BERR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BERR
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Bus error flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When a misplaced Start or
Stop condition is detected.
Reference Manual to
LL API cross
reference:
ISR BERR LL_I2C_IsActiveFlag_BERR
LL_I2C_IsActiveFlag_ARLO
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ARLO
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Arbitration lost flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When arbitration lost.
Reference Manual to
LL API cross
reference:
ISR ARLO LL_I2C_IsActiveFlag_ARLO
LL_I2C_IsActiveFlag_OVR
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_OVR
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Overrun/Underrun flag (slave mode).
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When an overrun/underrun
error occurs (Clock Stretching Disabled).
Reference Manual to
LL API cross
reference:
ISR OVR LL_I2C_IsActiveFlag_OVR
LL_I2C_IsActiveSMBusFlag_PECERR
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsActiveSMBusFlag_PECERR (I2C_TypeDef * I2Cx)
Function description
Indicate the status of SMBus PEC error flag in reception.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
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Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
RESET: Clear default value. SET: When the received PEC
does not match with the PEC register content.
Reference Manual to
LL API cross
reference:
ISR PECERR LL_I2C_IsActiveSMBusFlag_PECERR
LL_I2C_IsActiveSMBusFlag_TIMEOUT
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsActiveSMBusFlag_TIMEOUT (I2C_TypeDef * I2Cx)
Function description
Indicate the status of SMBus Timeout detection flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
RESET: Clear default value. SET: When a timeout or
extended clock timeout occurs.
Reference Manual to
LL API cross
reference:
ISR TIMEOUT LL_I2C_IsActiveSMBusFlag_TIMEOUT
LL_I2C_IsActiveSMBusFlag_ALERT
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsActiveSMBusFlag_ALERT (I2C_TypeDef * I2Cx)
Function description
Indicate the status of SMBus alert flag.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
RESET: Clear default value. SET: When SMBus host
configuration, SMBus alert enabled and a falling edge event
occurs on SMBA pin.
Reference Manual to
LL API cross
reference:
ISR ALERT LL_I2C_IsActiveSMBusFlag_ALERT
LL_I2C_IsActiveFlag_BUSY
Function name
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BUSY
(I2C_TypeDef * I2Cx)
Function description
Indicate the status of Bus Busy flag.
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Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
RESET: Clear default value. SET: When a Start condition is
detected.
Reference Manual to
LL API cross
reference:
ISR BUSY LL_I2C_IsActiveFlag_BUSY
LL_I2C_ClearFlag_ADDR
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_ADDR
(I2C_TypeDef * I2Cx)
Function description
Clear Address Matched flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR ADDRCF LL_I2C_ClearFlag_ADDR
LL_I2C_ClearFlag_NACK
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_NACK
(I2C_TypeDef * I2Cx)
Function description
Clear Not Acknowledge flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR NACKCF LL_I2C_ClearFlag_NACK
LL_I2C_ClearFlag_STOP
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_STOP (I2C_TypeDef
* I2Cx)
Function description
Clear Stop detection flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR STOPCF LL_I2C_ClearFlag_STOP
LL_I2C_ClearFlag_TXE
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_TXE (I2C_TypeDef *
I2Cx)
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Function description
Clear Transmit data register empty flag (TXE).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
This bit can be clear by software in order to flush the transmit
data register (TXDR).
Reference Manual to
LL API cross
reference:
ISR TXE LL_I2C_ClearFlag_TXE
LL_I2C_ClearFlag_BERR
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_BERR
(I2C_TypeDef * I2Cx)
Function description
Clear Bus error flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR BERRCF LL_I2C_ClearFlag_BERR
LL_I2C_ClearFlag_ARLO
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_ARLO
(I2C_TypeDef * I2Cx)
Function description
Clear Arbitration lost flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR ARLOCF LL_I2C_ClearFlag_ARLO
LL_I2C_ClearFlag_OVR
Function name
__STATIC_INLINE void LL_I2C_ClearFlag_OVR (I2C_TypeDef
* I2Cx)
Function description
Clear Overrun/Underrun flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
ICR OVRCF LL_I2C_ClearFlag_OVR
LL_I2C_ClearSMBusFlag_PECERR
Function name
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_PECERR
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(I2C_TypeDef * I2Cx)
Function description
Clear SMBus PEC error flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
ICR PECCF LL_I2C_ClearSMBusFlag_PECERR
LL_I2C_ClearSMBusFlag_TIMEOUT
Function name
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_TIMEOUT
(I2C_TypeDef * I2Cx)
Function description
Clear SMBus Timeout detection flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
ICR TIMOUTCF LL_I2C_ClearSMBusFlag_TIMEOUT
LL_I2C_ClearSMBusFlag_ALERT
Function name
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_ALERT
(I2C_TypeDef * I2Cx)
Function description
Clear SMBus Alert flag.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
ICR ALERTCF LL_I2C_ClearSMBusFlag_ALERT
LL_I2C_EnableAutoEndMode
Function name
__STATIC_INLINE void LL_I2C_EnableAutoEndMode
(I2C_TypeDef * I2Cx)
Function description
Enable automatic STOP condition generation (master mode).
Parameters
I2Cx: I2C Instance.
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Return values
None
Notes
Automatic end mode : a STOP condition is automatically sent
when NBYTES data are transferred. This bit has no effect in
slave mode or when RELOAD bit is set.
Reference Manual to
LL API cross
reference:
CR2 AUTOEND LL_I2C_EnableAutoEndMode
LL_I2C_DisableAutoEndMode
Function name
__STATIC_INLINE void LL_I2C_DisableAutoEndMode
(I2C_TypeDef * I2Cx)
Function description
Disable automatic STOP condition generation (master mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Software end mode : TC flag is set when NBYTES data are
transferre, stretching SCL low.
Reference Manual to
LL API cross
reference:
CR2 AUTOEND LL_I2C_DisableAutoEndMode
LL_I2C_IsEnabledAutoEndMode
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAutoEndMode
(I2C_TypeDef * I2Cx)
Function description
Check if automatic STOP condition is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 AUTOEND LL_I2C_IsEnabledAutoEndMode
LL_I2C_EnableReloadMode
Function name
__STATIC_INLINE void LL_I2C_EnableReloadMode
(I2C_TypeDef * I2Cx)
Function description
Enable reload mode (master mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
The transfer is not completed after the NBYTES data transfer,
NBYTES will be reloaded when TCR flag is set.
Reference Manual to
LL API cross
reference:
CR2 RELOAD LL_I2C_EnableReloadMode
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LL_I2C_DisableReloadMode
Function name
__STATIC_INLINE void LL_I2C_DisableReloadMode
(I2C_TypeDef * I2Cx)
Function description
Disable reload mode (master mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
The transfer is completed after the NBYTES data
transfer(STOP or RESTART will follow).
Reference Manual to
LL API cross
reference:
CR2 RELOAD LL_I2C_DisableReloadMode
LL_I2C_IsEnabledReloadMode
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledReloadMode
(I2C_TypeDef * I2Cx)
Function description
Check if reload mode is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RELOAD LL_I2C_IsEnabledReloadMode
LL_I2C_SetTransferSize
Function name
__STATIC_INLINE void LL_I2C_SetTransferSize (I2C_TypeDef
* I2Cx, uint32_t TransferSize)
Function description
Configure the number of bytes for transfer.
Parameters
I2Cx: I2C Instance.
TransferSize: This parameter must be a value between
Min_Data=0x00 and Max_Data=0xFF.
Return values
None
Notes
Changing these bits when START bit is set is not allowed.
Reference Manual to
LL API cross
reference:
CR2 NBYTES LL_I2C_SetTransferSize
LL_I2C_GetTransferSize
Function name
__STATIC_INLINE uint32_t LL_I2C_GetTransferSize
(I2C_TypeDef * I2Cx)
Function description
Get the number of bytes configured for transfer.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0xFF
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Reference Manual to
LL API cross
reference:
CR2 NBYTES LL_I2C_GetTransferSize
LL_I2C_AcknowledgeNextData
Function name
__STATIC_INLINE void LL_I2C_AcknowledgeNextData
(I2C_TypeDef * I2Cx, uint32_t TypeAcknowledge)
Function description
Prepare the generation of a ACKnowledge or Non ACKnowledge
condition after the address receive match code or next received
byte.
Parameters
I2Cx: I2C Instance.
TypeAcknowledge: This parameter can be one of the
following values:
LL_I2C_ACK
LL_I2C_NACK
Return values
None
Notes
Usage in Slave mode only.
Reference Manual to
LL API cross
reference:
CR2 NACK LL_I2C_AcknowledgeNextData
LL_I2C_GenerateStartCondition
Function name
__STATIC_INLINE void LL_I2C_GenerateStartCondition
(I2C_TypeDef * I2Cx)
Function description
Generate a START or RESTART condition.
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
The START bit can be set even if bus is BUSY or I2C is in
slave mode. This action has no effect when RELOAD is set.
Reference Manual to
LL API cross
reference:
CR2 START LL_I2C_GenerateStartCondition
LL_I2C_GenerateStopCondition
Function name
__STATIC_INLINE void LL_I2C_GenerateStopCondition
(I2C_TypeDef * I2Cx)
Function description
Generate a STOP condition after the current byte transfer (master
mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Reference Manual to
LL API cross
reference:
CR2 STOP LL_I2C_GenerateStopCondition
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LL_I2C_EnableAuto10BitRead
Function name
__STATIC_INLINE void LL_I2C_EnableAuto10BitRead
(I2C_TypeDef * I2Cx)
Function description
Enable automatic RESTART Read request condition for 10bit
address header (master mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
The master sends the complete 10bit slave address read
sequence : Start + 2 bytes 10bit address in Write direction +
Restart + first 7 bits of 10bit address in Read direction.
Reference Manual to
LL API cross
reference:
CR2 HEAD10R LL_I2C_EnableAuto10BitRead
LL_I2C_DisableAuto10BitRead
Function name
__STATIC_INLINE void LL_I2C_DisableAuto10BitRead
(I2C_TypeDef * I2Cx)
Function description
Disable automatic RESTART Read request condition for 10bit
address header (master mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
The master only sends the first 7 bits of 10bit address in Read
direction.
Reference Manual to
LL API cross
reference:
CR2 HEAD10R LL_I2C_DisableAuto10BitRead
LL_I2C_IsEnabledAuto10BitRead
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAuto10BitRead
(I2C_TypeDef * I2Cx)
Function description
Check if automatic RESTART Read request condition for 10bit
address header is enabled or disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 HEAD10R LL_I2C_IsEnabledAuto10BitRead
LL_I2C_SetTransferRequest
Function name
__STATIC_INLINE void LL_I2C_SetTransferRequest
(I2C_TypeDef * I2Cx, uint32_t TransferRequest)
Function description
Configure the transfer direction (master mode).
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Parameters
I2Cx: I2C Instance.
TransferRequest: This parameter can be one of the
following values:
LL_I2C_REQUEST_WRITE
LL_I2C_REQUEST_READ
Return values
None
Notes
Changing these bits when START bit is set is not allowed.
Reference Manual to
LL API cross
reference:
CR2 RD_WRN LL_I2C_SetTransferRequest
LL_I2C_GetTransferRequest
Function name
__STATIC_INLINE uint32_t LL_I2C_GetTransferRequest
(I2C_TypeDef * I2Cx)
Function description
Get the transfer direction requested (master mode).
Parameters
I2Cx: I2C Instance.
Return values
Returned: value can be one of the following values:
LL_I2C_REQUEST_WRITE
LL_I2C_REQUEST_READ
Reference Manual to
LL API cross
reference:
CR2 RD_WRN LL_I2C_GetTransferRequest
LL_I2C_SetSlaveAddr
Function name
__STATIC_INLINE void LL_I2C_SetSlaveAddr (I2C_TypeDef *
I2Cx, uint32_t SlaveAddr)
Function description
Configure the slave address for transfer (master mode).
Parameters
I2Cx: I2C Instance.
SlaveAddr: This parameter must be a value between
Min_Data=0x00 and Max_Data=0x3F.
Return values
None
Notes
Changing these bits when START bit is set is not allowed.
Reference Manual to
LL API cross
reference:
CR2 SADD LL_I2C_SetSlaveAddr
LL_I2C_GetSlaveAddr
Function name
__STATIC_INLINE uint32_t LL_I2C_GetSlaveAddr
(I2C_TypeDef * I2Cx)
Function description
Get the slave address programmed for transfer.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x0 and Max_Data=0x3F
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Reference Manual to
LL API cross
reference:
CR2 SADD LL_I2C_GetSlaveAddr
LL_I2C_HandleTransfer
Function name
__STATIC_INLINE void LL_I2C_HandleTransfer (I2C_TypeDef
* I2Cx, uint32_t SlaveAddr, uint32_t SlaveAddrSize, uint32_t
TransferSize, uint32_t EndMode, uint32_t Request)
Function description
Handles I2Cx communication when starting transfer or during
transfer (TC or TCR flag are set).
Parameters
I2Cx: I2C Instance.
SlaveAddr: Specifies the slave address to be programmed.
SlaveAddrSize: This parameter can be one of the following
values:
LL_I2C_ADDRSLAVE_7BIT
LL_I2C_ADDRSLAVE_10BIT
TransferSize: Specifies the number of bytes to be
programmed. This parameter must be a value between
Min_Data=0 and Max_Data=255.
EndMode: This parameter can be one of the following
values:
LL_I2C_MODE_RELOAD
LL_I2C_MODE_AUTOEND
LL_I2C_MODE_SOFTEND
LL_I2C_MODE_SMBUS_RELOAD
LL_I2C_MODE_SMBUS_AUTOEND_NO_PEC
LL_I2C_MODE_SMBUS_SOFTEND_NO_PEC
LL_I2C_MODE_SMBUS_AUTOEND_WITH_PEC
LL_I2C_MODE_SMBUS_SOFTEND_WITH_PEC
Request: This parameter can be one of the following values:
LL_I2C_GENERATE_NOSTARTSTOP
LL_I2C_GENERATE_STOP
LL_I2C_GENERATE_START_READ
LL_I2C_GENERATE_START_WRITE
LL_I2C_GENERATE_RESTART_7BIT_READ
LL_I2C_GENERATE_RESTART_7BIT_WRITE
LL_I2C_GENERATE_RESTART_10BIT_READ
LL_I2C_GENERATE_RESTART_10BIT_WRITE
Return values
None
Reference Manual to
LL API cross
reference:
CR2 SADD LL_I2C_HandleTransfer
CR2 ADD10 LL_I2C_HandleTransfer
CR2 RD_WRN LL_I2C_HandleTransfer
CR2 START LL_I2C_HandleTransfer
CR2 STOP LL_I2C_HandleTransfer
CR2 RELOAD LL_I2C_HandleTransfer
CR2 NBYTES LL_I2C_HandleTransfer
CR2 AUTOEND LL_I2C_HandleTransfer
CR2 HEAD10R LL_I2C_HandleTransfer
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LL_I2C_GetTransferDirection
Function name
__STATIC_INLINE uint32_t LL_I2C_GetTransferDirection
(I2C_TypeDef * I2Cx)
Function description
Indicate the value of transfer direction (slave mode).
Parameters
I2Cx: I2C Instance.
Return values
Returned: value can be one of the following values:
LL_I2C_DIRECTION_WRITE
LL_I2C_DIRECTION_READ
Notes
RESET: Write transfer, Slave enters in receiver mode. SET:
Read transfer, Slave enters in transmitter mode.
Reference Manual to
LL API cross
reference:
ISR DIR LL_I2C_GetTransferDirection
LL_I2C_GetAddressMatchCode
Function name
__STATIC_INLINE uint32_t LL_I2C_GetAddressMatchCode
(I2C_TypeDef * I2Cx)
Function description
Return the slave matched address.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x00 and Max_Data=0x3F
Reference Manual to
LL API cross
reference:
ISR ADDCODE LL_I2C_GetAddressMatchCode
LL_I2C_EnableSMBusPECCompare
Function name
__STATIC_INLINE void LL_I2C_EnableSMBusPECCompare
(I2C_TypeDef * I2Cx)
Function description
Enable internal comparison of the SMBus Packet Error byte
(transmission or reception mode).
Parameters
I2Cx: I2C Instance.
Return values
None
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
This feature is cleared by hardware when the PEC byte is
transferred, or when a STOP condition or an Address
Matched is received. This bit has no effect when RELOAD bit
is set. This bit has no effect in device mode when SBC bit is
not set.
Reference Manual to
LL API cross
reference:
CR2 PECBYTE LL_I2C_EnableSMBusPECCompare
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LL_I2C_IsEnabledSMBusPECCompare
Function name
__STATIC_INLINE uint32_t
LL_I2C_IsEnabledSMBusPECCompare (I2C_TypeDef * I2Cx)
Function description
Check if the SMBus Packet Error byte internal comparison is
requested or not.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR2 PECBYTE LL_I2C_IsEnabledSMBusPECCompare
LL_I2C_GetSMBusPEC
Function name
__STATIC_INLINE uint32_t LL_I2C_GetSMBusPEC
(I2C_TypeDef * I2Cx)
Function description
Get the SMBus Packet Error byte calculated.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Notes
Macro IS_SMBUS_INSTANCE(I2Cx) can be used to check
whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
PECR PEC LL_I2C_GetSMBusPEC
LL_I2C_ReceiveData8
Function name
__STATIC_INLINE uint8_t LL_I2C_ReceiveData8 (I2C_TypeDef
* I2Cx)
Function description
Read Receive Data register.
Parameters
I2Cx: I2C Instance.
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
LL API cross
reference:
RXDR RXDATA LL_I2C_ReceiveData8
LL_I2C_TransmitData8
Function name
__STATIC_INLINE void LL_I2C_TransmitData8 (I2C_TypeDef *
I2Cx, uint8_t Data)
Function description
Write in Transmit Data Register .
Parameters
I2Cx: I2C Instance.
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Data: Value between Min_Data=0x00 and Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
TXDR TXDATA LL_I2C_TransmitData8
LL_I2C_Init
Function name
uint32_t LL_I2C_Init (I2C_TypeDef * I2Cx, LL_I2C_InitTypeDef
* I2C_InitStruct)
Function description
Initialize the I2C registers according to the specified parameters in
I2C_InitStruct.
Parameters
I2Cx: I2C Instance.
I2C_InitStruct: pointer to a LL_I2C_InitTypeDef structure.
Return values
An: ErrorStatus enumeration value:
SUCCESS: I2C registers are initialized
ERROR: Not applicable
LL_I2C_DeInit
Function name
uint32_t LL_I2C_DeInit (I2C_TypeDef * I2Cx)
Function description
De-initialize the I2C registers to their default reset values.
Parameters
I2Cx: I2C Instance.
Return values
An: ErrorStatus enumeration value:
SUCCESS: I2C registers are de-initialized
ERROR: I2C registers are not de-initialized
LL_I2C_StructInit
Function name
void LL_I2C_StructInit (LL_I2C_InitTypeDef * I2C_InitStruct)
Function description
Set each LL_I2C_InitTypeDef field to default value.
Parameters
I2C_InitStruct: Pointer to a LL_I2C_InitTypeDef structure.
Return values
None
63.3 I2C Firmware driver defines
63.3.1 I2C
Master Addressing Mode
LL_I2C_ADDRESSING_MODE_7BIT
Master operates in 7-bit addressing mode.
LL_I2C_ADDRESSING_MODE_10BIT
Master operates in 10-bit addressing mode.
Slave Address Length
LL_I2C_ADDRSLAVE_7BIT
Slave Address in 7-bit.
LL_I2C_ADDRSLAVE_10BIT
Slave Address in 10-bit.
Analog Filter Selection
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LL_I2C_ANALOGFILTER_ENABLE
Analog filter is enabled.
LL_I2C_ANALOGFILTER_DISABLE
Analog filter is disabled.
Clear Flags Defines
LL_I2C_ICR_ADDRCF
Address Matched flag
LL_I2C_ICR_NACKCF
Not Acknowledge flag
LL_I2C_ICR_STOPCF
Stop detection flag
LL_I2C_ICR_BERRCF
Bus error flag
LL_I2C_ICR_ARLOCF
Arbitration Lost flag
LL_I2C_ICR_OVRCF
Overrun/Underrun flag
LL_I2C_ICR_PECCF
PEC error flag
LL_I2C_ICR_TIMOUTCF
Timeout detection flag
LL_I2C_ICR_ALERTCF
Alert flag
Read Write Direction
LL_I2C_DIRECTION_WRITE
Write transfer request by master, slave enters receiver
mode.
LL_I2C_DIRECTION_READ
Read transfer request by master, slave enters transmitter
mode.
DMA Register Data
LL_I2C_DMA_REG_DATA_TRANSMIT
Get address of data register used for
transmission
LL_I2C_DMA_REG_DATA_RECEIVE
Get address of data register used for reception
Start And Stop Generation
LL_I2C_GENERATE_NOSTARTSTOP
Don't Generate Stop and Start
condition.
LL_I2C_GENERATE_STOP
Generate Stop condition (Size should
be set to 0).
LL_I2C_GENERATE_START_READ
Generate Start for read request.
LL_I2C_GENERATE_START_WRITE
Generate Start for write request.
LL_I2C_GENERATE_RESTART_7BIT_READ
Generate Restart for read request,
slave 7Bit address.
LL_I2C_GENERATE_RESTART_7BIT_WRITE
Generate Restart for write request,
slave 7Bit address.
LL_I2C_GENERATE_RESTART_10BIT_READ
Generate Restart for read request,
slave 10Bit address.
LL_I2C_GENERATE_RESTART_10BIT_WRITE
Generate Restart for write request,
slave 10Bit address.
Get Flags Defines
LL_I2C_ISR_TXE
Transmit data register empty
LL_I2C_ISR_TXIS
Transmit interrupt status
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LL_I2C_ISR_RXNE
Receive data register not empty
LL_I2C_ISR_ADDR
Address matched (slave mode)
LL_I2C_ISR_NACKF
Not Acknowledge received flag
LL_I2C_ISR_STOPF
Stop detection flag
LL_I2C_ISR_TC
Transfer Complete (master mode)
LL_I2C_ISR_TCR
Transfer Complete Reload
LL_I2C_ISR_BERR
Bus error
LL_I2C_ISR_ARLO
Arbitration lost
LL_I2C_ISR_OVR
Overrun/Underrun (slave mode)
LL_I2C_ISR_PECERR
PEC Error in reception (SMBus mode)
LL_I2C_ISR_TIMEOUT
Timeout detection flag (SMBus mode)
LL_I2C_ISR_ALERT
SMBus alert (SMBus mode)
LL_I2C_ISR_BUSY
Bus busy
Acknowledge Generation
LL_I2C_ACK
ACK is sent after current received byte.
LL_I2C_NACK
NACK is sent after current received byte.
IT Defines
LL_I2C_CR1_TXIE
TX Interrupt enable
LL_I2C_CR1_RXIE
RX Interrupt enable
LL_I2C_CR1_ADDRIE
Address match Interrupt enable (slave only)
LL_I2C_CR1_NACKIE
Not acknowledge received Interrupt enable
LL_I2C_CR1_STOPIE
STOP detection Interrupt enable
LL_I2C_CR1_TCIE
Transfer Complete interrupt enable
LL_I2C_CR1_ERRIE
Error interrupts enable
Transfer End Mode
LL_I2C_MODE_RELOAD
Enable I2C Reload mode.
LL_I2C_MODE_AUTOEND
Enable I2C Automatic end mode with
no HW PEC comparison.
LL_I2C_MODE_SOFTEND
Enable I2C Software end mode with
no HW PEC comparison.
LL_I2C_MODE_SMBUS_RELOAD
Enable SMBUS Automatic end mode
with HW PEC comparison.
LL_I2C_MODE_SMBUS_AUTOEND_NO_PEC
Enable SMBUS Automatic end mode
with HW PEC comparison.
LL_I2C_MODE_SMBUS_SOFTEND_NO_PEC
Enable SMBUS Software end mode
with HW PEC comparison.
LL_I2C_MODE_SMBUS_AUTOEND_WITH_PEC
Enable SMBUS Automatic end mode
with HW PEC comparison.
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LL_I2C_MODE_SMBUS_SOFTEND_WITH_PEC
Enable SMBUS Software end mode
with HW PEC comparison.
Own Address 1 Length
LL_I2C_OWNADDRESS1_7BIT
Own address 1 is a 7-bit address.
LL_I2C_OWNADDRESS1_10BIT
Own address 1 is a 10-bit address.
Own Address 2 Masks
LL_I2C_OWNADDRESS2_NOMASK
Own Address2 No mask.
LL_I2C_OWNADDRESS2_MASK01
Only Address2 bits[7:2] are compared.
LL_I2C_OWNADDRESS2_MASK02
Only Address2 bits[7:3] are compared.
LL_I2C_OWNADDRESS2_MASK03
Only Address2 bits[7:4] are compared.
LL_I2C_OWNADDRESS2_MASK04
Only Address2 bits[7:5] are compared.
LL_I2C_OWNADDRESS2_MASK05
Only Address2 bits[7:6] are compared.
LL_I2C_OWNADDRESS2_MASK06
Only Address2 bits[7] are compared.
LL_I2C_OWNADDRESS2_MASK07
No comparison is done. All Address2 are
acknowledged.
Peripheral Mode
LL_I2C_MODE_I2C
I2C Master or Slave mode
LL_I2C_MODE_SMBUS_HOST
SMBus Host address acknowledge
LL_I2C_MODE_SMBUS_DEVICE
SMBus Device default mode (Default address
not acknowledge)
LL_I2C_MODE_SMBUS_DEVICE_ARP
SMBus Device Default address acknowledge
Transfer Request Direction
LL_I2C_REQUEST_WRITE
Master request a write transfer.
LL_I2C_REQUEST_READ
Master request a read transfer.
SMBus TimeoutA Mode SCL SDA Timeout
LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
TimeoutA is used to detect SCL
low level timeout.
LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
TimeoutA is used to detect both
SCL and SDA high level
timeout.
SMBus Timeout Selection
LL_I2C_SMBUS_TIMEOUTA
TimeoutA enable bit
LL_I2C_SMBUS_TIMEOUTB
TimeoutB (extended clock) enable bit
LL_I2C_SMBUS_ALL_TIMEOUT
TimeoutA and TimeoutB (extended clock) enable bits
Convert SDA SCL timings
__LL_I2C_CONVERT_TIMINGS
Description:
Configure the SDA setup, hold time and the SCL
high, low period.
Parameters:
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__PRESCALER__: This parameter must be a
value between Min_Data=0 and Max_Data=0xF.
__DATA_SETUP_TIME__: This parameter must
be a value between Min_Data=0 and
Max_Data=0xF. (tscldel = (SCLDEL+1)xtpresc)
__DATA_HOLD_TIME__: This parameter must be
a value between Min_Data=0 and Max_Data=0xF.
(tsdadel = SDADELxtpresc)
__CLOCK_HIGH_PERIOD__: This parameter
must be a value between Min_Data=0 and
Max_Data=0xFF. (tsclh = (SCLH+1)xtpresc)
__CLOCK_LOW_PERIOD__: This parameter must
be a value between Min_Data=0 and
Max_Data=0xFF. (tscll = (SCLL+1)xtpresc)
Return value:
Value: between Min_Data=0 and
Max_Data=0xFFFFFFFF
Common Write and read registers Macros
LL_I2C_WriteReg
Description:
Write a value in I2C register.
Parameters:
__INSTANCE__: I2C Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_I2C_ReadReg
Description:
Read a value in I2C register.
Parameters:
__INSTANCE__: I2C Instance
__REG__: Register to be read
Return value:
Register: value
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64 LL I2S Generic Driver
64.1 I2S Firmware driver registers structures
64.1.1 LL_I2S_InitTypeDef
Data Fields
uint32_t Mode
uint32_t Standard
uint32_t DataFormat
uint32_t MCLKOutput
uint32_t AudioFreq
uint32_t ClockPolarity
Field Documentation
uint32_t LL_I2S_InitTypeDef::Mode
Specifies the I2S operating mode. This parameter can be a value of
I2S_LL_EC_MODEThis feature can be modified afterwards using unitary function
LL_I2S_SetTransferMode().
uint32_t LL_I2S_InitTypeDef::Standard
Specifies the standard used for the I2S communication. This parameter can be a
value of I2S_LL_EC_STANDARDThis feature can be modified afterwards using
unitary function LL_I2S_SetStandard().
uint32_t LL_I2S_InitTypeDef::DataFormat
Specifies the data format for the I2S communication. This parameter can be a value of
I2S_LL_EC_DATA_FORMATThis feature can be modified afterwards using unitary
function LL_I2S_SetDataFormat().
uint32_t LL_I2S_InitTypeDef::MCLKOutput
Specifies whether the I2S MCLK output is enabled or not. This parameter can be a
value of I2S_LL_EC_MCLK_OUTPUTThis feature can be modified afterwards using
unitary functions LL_I2S_EnableMasterClock() or LL_I2S_DisableMasterClock.
uint32_t LL_I2S_InitTypeDef::AudioFreq
Specifies the frequency selected for the I2S communication. This parameter can be a
value of I2S_LL_EC_AUDIO_FREQAudio Frequency can be modified afterwards
using Reference manual formulas to calculate Prescaler Linear, Parity and unitary
functions LL_I2S_SetPrescalerLinear() and LL_I2S_SetPrescalerParity() to set it.
uint32_t LL_I2S_InitTypeDef::ClockPolarity
Specifies the idle state of the I2S clock. This parameter can be a value of
I2S_LL_EC_POLARITYThis feature can be modified afterwards using unitary function
LL_I2S_SetClockPolarity().
64.2 I2S Firmware driver API description
64.2.1 Detailed description of functions
LL_I2S_Enable
Function name
__STATIC_INLINE void LL_I2S_Enable (SPI_TypeDef * SPIx)
Function description
Select I2S mode and Enable I2S peripheral.
Parameters
SPIx: SPI Instance
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Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR I2SMOD LL_I2S_Enable
I2SCFGR I2SE LL_I2S_Enable
LL_I2S_Disable
Function name
__STATIC_INLINE void LL_I2S_Disable (SPI_TypeDef * SPIx)
Function description
Disable I2S peripheral.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR I2SE LL_I2S_Disable
LL_I2S_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabled (SPI_TypeDef *
SPIx)
Function description
Check if I2S peripheral is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
I2SCFGR I2SE LL_I2S_IsEnabled
LL_I2S_SetDataFormat
Function name
__STATIC_INLINE void LL_I2S_SetDataFormat (SPI_TypeDef *
SPIx, uint32_t DataFormat)
Function description
Set I2S data frame length.
Parameters
SPIx: SPI Instance
DataFormat: This parameter can be one of the following
values:
LL_I2S_DATAFORMAT_16B
LL_I2S_DATAFORMAT_16B_EXTENDED
LL_I2S_DATAFORMAT_24B
LL_I2S_DATAFORMAT_32B
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR DATLEN LL_I2S_SetDataFormat
I2SCFGR CHLEN LL_I2S_SetDataFormat
LL_I2S_GetDataFormat
Function name
__STATIC_INLINE uint32_t LL_I2S_GetDataFormat
(SPI_TypeDef * SPIx)
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Function description
Get I2S data frame length.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_I2S_DATAFORMAT_16B
LL_I2S_DATAFORMAT_16B_EXTENDED
LL_I2S_DATAFORMAT_24B
LL_I2S_DATAFORMAT_32B
Reference Manual to
LL API cross
reference:
I2SCFGR DATLEN LL_I2S_GetDataFormat
I2SCFGR CHLEN LL_I2S_GetDataFormat
LL_I2S_SetClockPolarity
Function name
__STATIC_INLINE void LL_I2S_SetClockPolarity
(SPI_TypeDef * SPIx, uint32_t ClockPolarity)
Function description
Set I2S clock polarity.
Parameters
SPIx: SPI Instance
ClockPolarity: This parameter can be one of the following
values:
LL_I2S_POLARITY_LOW
LL_I2S_POLARITY_HIGH
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR CKPOL LL_I2S_SetClockPolarity
LL_I2S_GetClockPolarity
Function name
__STATIC_INLINE uint32_t LL_I2S_GetClockPolarity
(SPI_TypeDef * SPIx)
Function description
Get I2S clock polarity.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_I2S_POLARITY_LOW
LL_I2S_POLARITY_HIGH
Reference Manual to
LL API cross
reference:
I2SCFGR CKPOL LL_I2S_GetClockPolarity
LL_I2S_SetStandard
Function name
__STATIC_INLINE void LL_I2S_SetStandard (SPI_TypeDef *
SPIx, uint32_t Standard)
Function description
Set I2S standard protocol.
Parameters
SPIx: SPI Instance
Standard: This parameter can be one of the following
values:
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LL_I2S_STANDARD_PHILIPS
LL_I2S_STANDARD_MSB
LL_I2S_STANDARD_LSB
LL_I2S_STANDARD_PCM_SHORT
LL_I2S_STANDARD_PCM_LONG
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR I2SSTD LL_I2S_SetStandard
I2SCFGR PCMSYNC LL_I2S_SetStandard
LL_I2S_GetStandard
Function name
__STATIC_INLINE uint32_t LL_I2S_GetStandard (SPI_TypeDef
* SPIx)
Function description
Get I2S standard protocol.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_I2S_STANDARD_PHILIPS
LL_I2S_STANDARD_MSB
LL_I2S_STANDARD_LSB
LL_I2S_STANDARD_PCM_SHORT
LL_I2S_STANDARD_PCM_LONG
Reference Manual to
LL API cross
reference:
I2SCFGR I2SSTD LL_I2S_GetStandard
I2SCFGR PCMSYNC LL_I2S_GetStandard
LL_I2S_SetTransferMode
Function name
__STATIC_INLINE void LL_I2S_SetTransferMode
(SPI_TypeDef * SPIx, uint32_t Mode)
Function description
Set I2S transfer mode.
Parameters
SPIx: SPI Instance
Mode: This parameter can be one of the following values:
LL_I2S_MODE_SLAVE_TX
LL_I2S_MODE_SLAVE_RX
LL_I2S_MODE_MASTER_TX
LL_I2S_MODE_MASTER_RX
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR I2SCFG LL_I2S_SetTransferMode
LL_I2S_GetTransferMode
Function name
__STATIC_INLINE uint32_t LL_I2S_GetTransferMode
(SPI_TypeDef * SPIx)
Function description
Get I2S transfer mode.
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Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_I2S_MODE_SLAVE_TX
LL_I2S_MODE_SLAVE_RX
LL_I2S_MODE_MASTER_TX
LL_I2S_MODE_MASTER_RX
Reference Manual to
LL API cross
reference:
I2SCFGR I2SCFG LL_I2S_GetTransferMode
LL_I2S_SetPrescalerLinear
Function name
__STATIC_INLINE void LL_I2S_SetPrescalerLinear
(SPI_TypeDef * SPIx, uint8_t PrescalerLinear)
Function description
Set I2S linear prescaler.
Parameters
SPIx: SPI Instance
PrescalerLinear: Value between Min_Data=0x02 and
Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
I2SPR I2SDIV LL_I2S_SetPrescalerLinear
LL_I2S_GetPrescalerLinear
Function name
__STATIC_INLINE uint32_t LL_I2S_GetPrescalerLinear
(SPI_TypeDef * SPIx)
Function description
Get I2S linear prescaler.
Parameters
SPIx: SPI Instance
Return values
PrescalerLinear: Value between Min_Data=0x02 and
Max_Data=0xFF
Reference Manual to
LL API cross
reference:
I2SPR I2SDIV LL_I2S_GetPrescalerLinear
LL_I2S_SetPrescalerParity
Function name
__STATIC_INLINE void LL_I2S_SetPrescalerParity
(SPI_TypeDef * SPIx, uint32_t PrescalerParity)
Function description
Set I2S parity prescaler.
Parameters
SPIx: SPI Instance
PrescalerParity: This parameter can be one of the following
values:
LL_I2S_PRESCALER_PARITY_EVEN
LL_I2S_PRESCALER_PARITY_ODD
Return values
None
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Reference Manual to
LL API cross
reference:
I2SPR ODD LL_I2S_SetPrescalerParity
LL_I2S_GetPrescalerParity
Function name
__STATIC_INLINE uint32_t LL_I2S_GetPrescalerParity
(SPI_TypeDef * SPIx)
Function description
Get I2S parity prescaler.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_I2S_PRESCALER_PARITY_EVEN
LL_I2S_PRESCALER_PARITY_ODD
Reference Manual to
LL API cross
reference:
I2SPR ODD LL_I2S_GetPrescalerParity
LL_I2S_EnableMasterClock
Function name
__STATIC_INLINE void LL_I2S_EnableMasterClock
(SPI_TypeDef * SPIx)
Function description
Enable the master clock ouput (Pin MCK)
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
I2SPR MCKOE LL_I2S_EnableMasterClock
LL_I2S_DisableMasterClock
Function name
__STATIC_INLINE void LL_I2S_DisableMasterClock
(SPI_TypeDef * SPIx)
Function description
Disable the master clock ouput (Pin MCK)
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
I2SPR MCKOE LL_I2S_DisableMasterClock
LL_I2S_IsEnabledMasterClock
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledMasterClock
(SPI_TypeDef * SPIx)
Function description
Check if the master clock ouput (Pin MCK) is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
I2SPR MCKOE LL_I2S_IsEnabledMasterClock
LL_I2S_EnableAsyncStart
Function name
__STATIC_INLINE void LL_I2S_EnableAsyncStart
(SPI_TypeDef * SPIx)
Function description
Enable asynchronous start.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR ASTRTEN LL_I2S_EnableAsyncStart
LL_I2S_DisableAsyncStart
Function name
__STATIC_INLINE void LL_I2S_DisableAsyncStart
(SPI_TypeDef * SPIx)
Function description
Disable asynchronous start.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
I2SCFGR ASTRTEN LL_I2S_DisableAsyncStart
LL_I2S_IsEnabledAsyncStart
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledAsyncStart
(SPI_TypeDef * SPIx)
Function description
Check if asynchronous start is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
I2SCFGR ASTRTEN LL_I2S_IsEnabledAsyncStart
LL_I2S_IsActiveFlag_RXNE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_RXNE
(SPI_TypeDef * SPIx)
Function description
Check if Rx buffer is not empty.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
SR RXNE LL_I2S_IsActiveFlag_RXNE
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LL_I2S_IsActiveFlag_TXE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_TXE
(SPI_TypeDef * SPIx)
Function description
Check if Tx buffer is empty.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR TXE LL_I2S_IsActiveFlag_TXE
LL_I2S_IsActiveFlag_BSY
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_BSY
(SPI_TypeDef * SPIx)
Function description
Get busy flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR BSY LL_I2S_IsActiveFlag_BSY
LL_I2S_IsActiveFlag_OVR
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_OVR
(SPI_TypeDef * SPIx)
Function description
Get overrun error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR OVR LL_I2S_IsActiveFlag_OVR
LL_I2S_IsActiveFlag_UDR
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_UDR
(SPI_TypeDef * SPIx)
Function description
Get underrun error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR UDR LL_I2S_IsActiveFlag_UDR
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LL_I2S_IsActiveFlag_FRE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_FRE
(SPI_TypeDef * SPIx)
Function description
Get frame format error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR FRE LL_I2S_IsActiveFlag_FRE
LL_I2S_IsActiveFlag_CHSIDE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_CHSIDE
(SPI_TypeDef * SPIx)
Function description
Get channel side flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Notes
0: Channel Left has to be transmitted or has been received 1:
Channel Right has to be transmitted or has been received It
has no significance in PCM mode.
Reference Manual to
LL API cross
reference:
SR CHSIDE LL_I2S_IsActiveFlag_CHSIDE
LL_I2S_ClearFlag_OVR
Function name
__STATIC_INLINE void LL_I2S_ClearFlag_OVR (SPI_TypeDef
* SPIx)
Function description
Clear overrun error flag.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR OVR LL_I2S_ClearFlag_OVR
LL_I2S_ClearFlag_UDR
Function name
__STATIC_INLINE void LL_I2S_ClearFlag_UDR (SPI_TypeDef
* SPIx)
Function description
Clear underrun error flag.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
SR UDR LL_I2S_ClearFlag_UDR
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LL_I2S_ClearFlag_FRE
Function name
__STATIC_INLINE void LL_I2S_ClearFlag_FRE (SPI_TypeDef *
SPIx)
Function description
Clear frame format error flag.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR FRE LL_I2S_ClearFlag_FRE
LL_I2S_EnableIT_ERR
Function name
__STATIC_INLINE void LL_I2S_EnableIT_ERR (SPI_TypeDef *
SPIx)
Function description
Enable error IT.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit controls the generation of an interrupt when an error
condition occurs (OVR, UDR and FRE in I2S mode).
Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_I2S_EnableIT_ERR
LL_I2S_EnableIT_RXNE
Function name
__STATIC_INLINE void LL_I2S_EnableIT_RXNE (SPI_TypeDef
* SPIx)
Function description
Enable Rx buffer not empty IT.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_I2S_EnableIT_RXNE
LL_I2S_EnableIT_TXE
Function name
__STATIC_INLINE void LL_I2S_EnableIT_TXE (SPI_TypeDef *
SPIx)
Function description
Enable Tx buffer empty IT.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
CR2 TXEIE LL_I2S_EnableIT_TXE
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reference:
LL_I2S_DisableIT_ERR
Function name
__STATIC_INLINE void LL_I2S_DisableIT_ERR (SPI_TypeDef *
SPIx)
Function description
Disable error IT.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit controls the generation of an interrupt when an error
condition occurs (OVR, UDR and FRE in I2S mode).
Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_I2S_DisableIT_ERR
LL_I2S_DisableIT_RXNE
Function name
__STATIC_INLINE void LL_I2S_DisableIT_RXNE (SPI_TypeDef
* SPIx)
Function description
Disable Rx buffer not empty IT.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_I2S_DisableIT_RXNE
LL_I2S_DisableIT_TXE
Function name
__STATIC_INLINE void LL_I2S_DisableIT_TXE (SPI_TypeDef *
SPIx)
Function description
Disable Tx buffer empty IT.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXEIE LL_I2S_DisableIT_TXE
LL_I2S_IsEnabledIT_ERR
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_ERR
(SPI_TypeDef * SPIx)
Function description
Check if ERR IT is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_I2S_IsEnabledIT_ERR
LL_I2S_IsEnabledIT_RXNE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_RXNE
(SPI_TypeDef * SPIx)
Function description
Check if RXNE IT is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_I2S_IsEnabledIT_RXNE
LL_I2S_IsEnabledIT_TXE
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_TXE
(SPI_TypeDef * SPIx)
Function description
Check if TXE IT is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 TXEIE LL_I2S_IsEnabledIT_TXE
LL_I2S_EnableDMAReq_RX
Function name
__STATIC_INLINE void LL_I2S_EnableDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Enable DMA Rx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXDMAEN LL_I2S_EnableDMAReq_RX
LL_I2S_DisableDMAReq_RX
Function name
__STATIC_INLINE void LL_I2S_DisableDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Disable DMA Rx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
CR2 RXDMAEN LL_I2S_DisableDMAReq_RX
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LL_I2S_IsEnabledDMAReq_RX
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Check if DMA Rx is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RXDMAEN LL_I2S_IsEnabledDMAReq_RX
LL_I2S_EnableDMAReq_TX
Function name
__STATIC_INLINE void LL_I2S_EnableDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Enable DMA Tx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_I2S_EnableDMAReq_TX
LL_I2S_DisableDMAReq_TX
Function name
__STATIC_INLINE void LL_I2S_DisableDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Disable DMA Tx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_I2S_DisableDMAReq_TX
LL_I2S_IsEnabledDMAReq_TX
Function name
__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Check if DMA Tx is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_I2S_IsEnabledDMAReq_TX
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LL_I2S_ReceiveData16
Function name
__STATIC_INLINE uint16_t LL_I2S_ReceiveData16
(SPI_TypeDef * SPIx)
Function description
Read 16-Bits in data register.
Parameters
SPIx: SPI Instance
Return values
RxData: Value between Min_Data=0x0000 and
Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
DR DR LL_I2S_ReceiveData16
LL_I2S_TransmitData16
Function name
__STATIC_INLINE void LL_I2S_TransmitData16 (SPI_TypeDef
* SPIx, uint16_t TxData)
Function description
Write 16-Bits in data register.
Parameters
SPIx: SPI Instance
TxData: Value between Min_Data=0x0000 and
Max_Data=0xFFFF
Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_I2S_TransmitData16
LL_I2S_DeInit
Function name
ErrorStatus LL_I2S_DeInit (SPI_TypeDef * SPIx)
Function description
De-initialize the SPI/I2S registers to their default reset values.
Parameters
SPIx: SPI Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: SPI registers are de-initialized
ERROR: SPI registers are not de-initialized
LL_I2S_Init
Function name
ErrorStatus LL_I2S_Init (SPI_TypeDef * SPIx,
LL_I2S_InitTypeDef * I2S_InitStruct)
Function description
Initializes the SPI/I2S registers according to the specified
parameters in I2S_InitStruct.
Parameters
SPIx: SPI Instance
I2S_InitStruct: pointer to a LL_I2S_InitTypeDef structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: SPI registers are Initialized
ERROR: SPI registers are not Initialized
Notes
As some bits in SPI configuration registers can only be written
when the SPI is disabled (SPI_CR1_SPE bit =0), SPI IP
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should be in disabled state prior calling this function.
Otherwise, ERROR result will be returned.
LL_I2S_StructInit
Function name
void LL_I2S_StructInit (LL_I2S_InitTypeDef * I2S_InitStruct)
Function description
Set each LL_I2S_InitTypeDef field to default value.
Parameters
I2S_InitStruct: pointer to a LL_I2S_InitTypeDef structure
whose fields will be set to default values.
Return values
None
LL_I2S_ConfigPrescaler
Function name
void LL_I2S_ConfigPrescaler (SPI_TypeDef * SPIx, uint32_t
PrescalerLinear, uint32_t PrescalerParity)
Function description
Set linear and parity prescaler.
Parameters
SPIx: SPI Instance
PrescalerLinear: value: Min_Data=0x02 and
Max_Data=0xFF.
PrescalerParity: This parameter can be one of the following
values:
LL_I2S_PRESCALER_PARITY_EVEN
LL_I2S_PRESCALER_PARITY_ODD
Return values
None
Notes
To calculate value of PrescalerLinear(I2SDIV[7:0] bits) and
PrescalerParity(ODD bit) Check Audio frequency table and
formulas inside Reference Manual (SPI/I2S).
64.3 I2S Firmware driver defines
64.3.1 I2S
Audio Frequency
LL_I2S_AUDIOFREQ_192K
Audio Frequency configuration 192000 Hz
LL_I2S_AUDIOFREQ_96K
Audio Frequency configuration 96000 Hz
LL_I2S_AUDIOFREQ_48K
Audio Frequency configuration 48000 Hz
LL_I2S_AUDIOFREQ_44K
Audio Frequency configuration 44100 Hz
LL_I2S_AUDIOFREQ_32K
Audio Frequency configuration 32000 Hz
LL_I2S_AUDIOFREQ_22K
Audio Frequency configuration 22050 Hz
LL_I2S_AUDIOFREQ_16K
Audio Frequency configuration 16000 Hz
LL_I2S_AUDIOFREQ_11K
Audio Frequency configuration 11025 Hz
LL_I2S_AUDIOFREQ_8K
Audio Frequency configuration 8000 Hz
LL_I2S_AUDIOFREQ_DEFAULT
Audio Freq not specified. Register I2SDIV = 2
Data format
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LL_I2S_DATAFORMAT_16B
Data length 16 bits, Channel lenght 16bit
LL_I2S_DATAFORMAT_16B_EXTENDED
Data length 16 bits, Channel lenght 32bit
LL_I2S_DATAFORMAT_24B
Data length 24 bits, Channel lenght 32bit
LL_I2S_DATAFORMAT_32B
Data length 16 bits, Channel lenght 32bit
Get Flags Defines
LL_I2S_SR_RXNE
Rx buffer not empty flag
LL_I2S_SR_TXE
Tx buffer empty flag
LL_I2S_SR_BSY
Busy flag
LL_I2S_SR_UDR
Underrun flag
LL_I2S_SR_OVR
Overrun flag
LL_I2S_SR_FRE
TI mode frame format error flag
MCLK Output
LL_I2S_MCLK_OUTPUT_DISABLE
Master clock output is disabled
LL_I2S_MCLK_OUTPUT_ENABLE
Master clock output is enabled
Operation Mode
LL_I2S_MODE_SLAVE_TX
Slave Tx configuration
LL_I2S_MODE_SLAVE_RX
Slave Rx configuration
LL_I2S_MODE_MASTER_TX
Master Tx configuration
LL_I2S_MODE_MASTER_RX
Master Rx configuration
Clock Polarity
LL_I2S_POLARITY_LOW
Clock steady state is low level
LL_I2S_POLARITY_HIGH
Clock steady state is high level
Prescaler Factor
LL_I2S_PRESCALER_PARITY_EVEN
Odd factor: Real divider value is = I2SDIV * 2
LL_I2S_PRESCALER_PARITY_ODD
Odd factor: Real divider value is = (I2SDIV * 2)+1
I2s Standard
LL_I2S_STANDARD_PHILIPS
I2S standard philips
LL_I2S_STANDARD_MSB
MSB justified standard (left justified)
LL_I2S_STANDARD_LSB
LSB justified standard (right justified)
LL_I2S_STANDARD_PCM_SHORT
PCM standard, short frame synchronization
LL_I2S_STANDARD_PCM_LONG
PCM standard, long frame synchronization
Common Write and read registers Macros
LL_I2S_WriteReg
Description:
Write a value in I2S register.
Parameters:
__INSTANCE__: I2S Instance
__REG__: Register to be written
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__VALUE__: Value to be written in the register
Return value:
None
LL_I2S_ReadReg
Description:
Read a value in I2S register.
Parameters:
__INSTANCE__: I2S Instance
__REG__: Register to be read
Return value:
Register: value
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65 LL IWDG Generic Driver
65.1 IWDG Firmware driver API description
65.1.1 Detailed description of functions
LL_IWDG_Enable
Function name
__STATIC_INLINE void LL_IWDG_Enable (IWDG_TypeDef *
IWDGx)
Function description
Start the Independent Watchdog.
Parameters
IWDGx: IWDG Instance
Return values
None
Notes
Except if the hardware watchdog option is selected
Reference Manual to
LL API cross
reference:
KR KEY LL_IWDG_Enable
LL_IWDG_ReloadCounter
Function name
__STATIC_INLINE void LL_IWDG_ReloadCounter
(IWDG_TypeDef * IWDGx)
Function description
Reloads IWDG counter with value defined in the reload register.
Parameters
IWDGx: IWDG Instance
Return values
None
Reference Manual to
LL API cross
reference:
KR KEY LL_IWDG_ReloadCounter
LL_IWDG_EnableWriteAccess
Function name
__STATIC_INLINE void LL_IWDG_EnableWriteAccess
(IWDG_TypeDef * IWDGx)
Function description
Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR
registers.
Parameters
IWDGx: IWDG Instance
Return values
None
Reference Manual to
LL API cross
reference:
KR KEY LL_IWDG_EnableWriteAccess
LL_IWDG_DisableWriteAccess
Function name
__STATIC_INLINE void LL_IWDG_DisableWriteAccess
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(IWDG_TypeDef * IWDGx)
Function description
Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR
registers.
Parameters
IWDGx: IWDG Instance
Return values
None
Reference Manual to
LL API cross
reference:
KR KEY LL_IWDG_DisableWriteAccess
LL_IWDG_SetPrescaler
Function name
__STATIC_INLINE void LL_IWDG_SetPrescaler
(IWDG_TypeDef * IWDGx, uint32_t Prescaler)
Function description
Select the prescaler of the IWDG.
Parameters
IWDGx: IWDG Instance
Prescaler: This parameter can be one of the following
values:
LL_IWDG_PRESCALER_4
LL_IWDG_PRESCALER_8
LL_IWDG_PRESCALER_16
LL_IWDG_PRESCALER_32
LL_IWDG_PRESCALER_64
LL_IWDG_PRESCALER_128
LL_IWDG_PRESCALER_256
Return values
None
Reference Manual to
LL API cross
reference:
PR PR LL_IWDG_SetPrescaler
LL_IWDG_GetPrescaler
Function name
__STATIC_INLINE uint32_t LL_IWDG_GetPrescaler
(IWDG_TypeDef * IWDGx)
Function description
Get the selected prescaler of the IWDG.
Parameters
IWDGx: IWDG Instance
Return values
Returned: value can be one of the following values:
LL_IWDG_PRESCALER_4
LL_IWDG_PRESCALER_8
LL_IWDG_PRESCALER_16
LL_IWDG_PRESCALER_32
LL_IWDG_PRESCALER_64
LL_IWDG_PRESCALER_128
LL_IWDG_PRESCALER_256
Reference Manual to
LL API cross
reference:
PR PR LL_IWDG_GetPrescaler
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LL_IWDG_SetReloadCounter
Function name
__STATIC_INLINE void LL_IWDG_SetReloadCounter
(IWDG_TypeDef * IWDGx, uint32_t Counter)
Function description
Specify the IWDG down-counter reload value.
Parameters
IWDGx: IWDG Instance
Counter: Value between Min_Data=0 and
Max_Data=0x0FFF
Return values
None
Reference Manual to
LL API cross
reference:
RLR RL LL_IWDG_SetReloadCounter
LL_IWDG_GetReloadCounter
Function name
__STATIC_INLINE uint32_t LL_IWDG_GetReloadCounter
(IWDG_TypeDef * IWDGx)
Function description
Get the specified IWDG down-counter reload value.
Parameters
IWDGx: IWDG Instance
Return values
Value: between Min_Data=0 and Max_Data=0x0FFF
Reference Manual to
LL API cross
reference:
RLR RL LL_IWDG_GetReloadCounter
LL_IWDG_SetWindow
Function name
__STATIC_INLINE void LL_IWDG_SetWindow (IWDG_TypeDef
* IWDGx, uint32_t Window)
Function description
Specify high limit of the window value to be compared to the down-
counter.
Parameters
IWDGx: IWDG Instance
Window: Value between Min_Data=0 and
Max_Data=0x0FFF
Return values
None
Reference Manual to
LL API cross
reference:
WINR WIN LL_IWDG_SetWindow
LL_IWDG_GetWindow
Function name
__STATIC_INLINE uint32_t LL_IWDG_GetWindow
(IWDG_TypeDef * IWDGx)
Function description
Get the high limit of the window value specified.
Parameters
IWDGx: IWDG Instance
Return values
Value: between Min_Data=0 and Max_Data=0x0FFF
Reference Manual to
WINR WIN LL_IWDG_GetWindow
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reference:
LL_IWDG_IsActiveFlag_PVU
Function name
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_PVU
(IWDG_TypeDef * IWDGx)
Function description
Check if flag Prescaler Value Update is set or not.
Parameters
IWDGx: IWDG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR PVU LL_IWDG_IsActiveFlag_PVU
LL_IWDG_IsActiveFlag_RVU
Function name
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_RVU
(IWDG_TypeDef * IWDGx)
Function description
Check if flag Reload Value Update is set or not.
Parameters
IWDGx: IWDG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR RVU LL_IWDG_IsActiveFlag_RVU
LL_IWDG_IsActiveFlag_WVU
Function name
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_WVU
(IWDG_TypeDef * IWDGx)
Function description
Check if flag Window Value Update is set or not.
Parameters
IWDGx: IWDG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR WVU LL_IWDG_IsActiveFlag_WVU
LL_IWDG_IsReady
Function name
__STATIC_INLINE uint32_t LL_IWDG_IsReady
(IWDG_TypeDef * IWDGx)
Function description
Check if all flags Prescaler, Reload & Window Value Update are
reset or not.
Parameters
IWDGx: IWDG Instance
Return values
State: of bits (1 or 0).
Reference Manual to
LL API cross
SR PVU LL_IWDG_IsReady
SR WVU LL_IWDG_IsReady
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SR RVU LL_IWDG_IsReady
65.2 IWDG Firmware driver defines
65.2.1 IWDG
Get Flags Defines
LL_IWDG_SR_PVU
Watchdog prescaler value update
LL_IWDG_SR_RVU
Watchdog counter reload value update
LL_IWDG_SR_WVU
Watchdog counter window value update
Prescaler Divider
LL_IWDG_PRESCALER_4
Divider by 4
LL_IWDG_PRESCALER_8
Divider by 8
LL_IWDG_PRESCALER_16
Divider by 16
LL_IWDG_PRESCALER_32
Divider by 32
LL_IWDG_PRESCALER_64
Divider by 64
LL_IWDG_PRESCALER_128
Divider by 128
LL_IWDG_PRESCALER_256
Divider by 256
Common Write and read registers Macros
LL_IWDG_WriteReg
Description:
Write a value in IWDG register.
Parameters:
__INSTANCE__: IWDG Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_IWDG_ReadReg
Description:
Read a value in IWDG register.
Parameters:
__INSTANCE__: IWDG Instance
__REG__: Register to be read
Return value:
Register: value
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66 LL LPTIM Generic Driver
66.1 LPTIM Firmware driver registers structures
66.1.1 LL_LPTIM_InitTypeDef
Data Fields
uint32_t ClockSource
uint32_t Prescaler
uint32_t Waveform
uint32_t Polarity
Field Documentation
uint32_t LL_LPTIM_InitTypeDef::ClockSource
Specifies the source of the clock used by the LPTIM instance. This parameter can be
a value of LPTIM_LL_EC_CLK_SOURCE.This feature can be modified afterwards
using unitary function LL_LPTIM_SetClockSource().
uint32_t LL_LPTIM_InitTypeDef::Prescaler
Specifies the prescaler division ratio. This parameter can be a value of
LPTIM_LL_EC_PRESCALER.This feature can be modified afterwards using using
unitary function LL_LPTIM_SetPrescaler().
uint32_t LL_LPTIM_InitTypeDef::Waveform
Specifies the waveform shape. This parameter can be a value of
LPTIM_LL_EC_OUTPUT_WAVEFORM.This feature can be modified afterwards
using unitary function LL_LPTIM_ConfigOutput().
uint32_t LL_LPTIM_InitTypeDef::Polarity
Specifies waveform polarity. This parameter can be a value of
LPTIM_LL_EC_OUTPUT_POLARITY.This feature can be modified afterwards using
unitary function LL_LPTIM_ConfigOutput().
66.2 LPTIM Firmware driver API description
66.2.1 Detailed description of functions
LL_LPTIM_Enable
Function name
__STATIC_INLINE void LL_LPTIM_Enable (LPTIM_TypeDef *
LPTIMx)
Function description
Enable the LPTIM instance.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
After setting the ENABLE bit, a delay of two counter clock is
needed before the LPTIM instance is actually enabled.
Reference Manual to
LL API cross
reference:
CR ENABLE LL_LPTIM_Enable
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LL_LPTIM_Disable
Function name
__STATIC_INLINE void LL_LPTIM_Disable (LPTIM_TypeDef *
LPTIMx)
Function description
Disable the LPTIM instance.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR ENABLE LL_LPTIM_Disable
LL_LPTIM_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabled
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the LPTIM instance is enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ENABLE LL_LPTIM_IsEnabled
LL_LPTIM_StartCounter
Function name
__STATIC_INLINE void LL_LPTIM_StartCounter
(LPTIM_TypeDef * LPTIMx, uint32_t OperatingMode)
Function description
Starts the LPTIM counter in the desired mode.
Parameters
LPTIMx: Low-Power Timer instance
OperatingMode: This parameter can be one of the following
values:
LL_LPTIM_OPERATING_MODE_CONTINUOUS
LL_LPTIM_OPERATING_MODE_ONESHOT
Return values
None
Notes
LPTIM instance must be enabled before starting the counter.
It is possible to change on the fly from One Shot mode to
Continuous mode.
Reference Manual to
LL API cross
reference:
CR CNTSTRT LL_LPTIM_StartCounter
CR SNGSTRT LL_LPTIM_StartCounter
LL_LPTIM_SetUpdateMode
Function name
__STATIC_INLINE void LL_LPTIM_SetUpdateMode
(LPTIM_TypeDef * LPTIMx, uint32_t UpdateMode)
Function description
Set the LPTIM registers update mode (enable/disable register
preload)
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Parameters
LPTIMx: Low-Power Timer instance
UpdateMode: This parameter can be one of the following
values:
LL_LPTIM_UPDATE_MODE_IMMEDIATE
LL_LPTIM_UPDATE_MODE_ENDOFPERIOD
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Reference Manual to
LL API cross
reference:
CFGR PRELOAD LL_LPTIM_SetUpdateMode
LL_LPTIM_GetUpdateMode
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetUpdateMode
(LPTIM_TypeDef * LPTIMx)
Function description
Get the LPTIM registers update mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_UPDATE_MODE_IMMEDIATE
LL_LPTIM_UPDATE_MODE_ENDOFPERIOD
Reference Manual to
LL API cross
reference:
CFGR PRELOAD LL_LPTIM_GetUpdateMode
LL_LPTIM_SetAutoReload
Function name
__STATIC_INLINE void LL_LPTIM_SetAutoReload
(LPTIM_TypeDef * LPTIMx, uint32_t AutoReload)
Function description
Set the auto reload value.
Parameters
LPTIMx: Low-Power Timer instance
AutoReload: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Return values
None
Notes
The LPTIMx_ARR register content must only be modified
when the LPTIM is enabled
After a write to the LPTIMx_ARR register a new write
operation to the same register can only be performed when
the previous write operation is completed. Any successive
write before the ARROK flag be set, will lead to unpredictable
results.
autoreload value be strictly greater than the compare value.
Reference Manual to
LL API cross
reference:
ARR ARR LL_LPTIM_SetAutoReload
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LL_LPTIM_GetAutoReload
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetAutoReload
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual auto reload value.
Parameters
LPTIMx: Low-Power Timer instance
Return values
AutoReload: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
ARR ARR LL_LPTIM_GetAutoReload
LL_LPTIM_SetCompare
Function name
__STATIC_INLINE void LL_LPTIM_SetCompare
(LPTIM_TypeDef * LPTIMx, uint32_t CompareValue)
Function description
Set the compare value.
Parameters
LPTIMx: Low-Power Timer instance
CompareValue: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Return values
None
Notes
After a write to the LPTIMx_CMP register a new write
operation to the same register can only be performed when
the previous write operation is completed. Any successive
write before the CMPOK flag be set, will lead to unpredictable
results.
Reference Manual to
LL API cross
reference:
CMP CMP LL_LPTIM_SetCompare
LL_LPTIM_GetCompare
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetCompare
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual compare value.
Parameters
LPTIMx: Low-Power Timer instance
Return values
CompareValue: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
CMP CMP LL_LPTIM_GetCompare
LL_LPTIM_GetCounter
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetCounter
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual counter value.
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Parameters
LPTIMx: Low-Power Timer instance
Return values
Counter: value
Notes
When the LPTIM instance is running with an asynchronous
clock, reading the LPTIMx_CNT register may return unreliable
values. So in this case it is necessary to perform two
consecutive read accesses and verify that the two returned
values are identical.
Reference Manual to
LL API cross
reference:
CNT CNT LL_LPTIM_GetCounter
LL_LPTIM_SetCounterMode
Function name
__STATIC_INLINE void LL_LPTIM_SetCounterMode
(LPTIM_TypeDef * LPTIMx, uint32_t CounterMode)
Function description
Set the counter mode (selection of the LPTIM counter clock
source).
Parameters
LPTIMx: Low-Power Timer instance
CounterMode: This parameter can be one of the following
values:
LL_LPTIM_COUNTER_MODE_INTERNAL
LL_LPTIM_COUNTER_MODE_EXTERNAL
Return values
None
Notes
The counter mode can be set only when the LPTIM instance
is disabled.
Reference Manual to
LL API cross
reference:
CFGR COUNTMODE LL_LPTIM_SetCounterMode
LL_LPTIM_GetCounterMode
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetCounterMode
(LPTIM_TypeDef * LPTIMx)
Function description
Get the counter mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_COUNTER_MODE_INTERNAL
LL_LPTIM_COUNTER_MODE_EXTERNAL
Reference Manual to
LL API cross
reference:
CFGR COUNTMODE LL_LPTIM_GetCounterMode
LL_LPTIM_ConfigOutput
Function name
__STATIC_INLINE void LL_LPTIM_ConfigOutput
(LPTIM_TypeDef * LPTIMx, uint32_t Waveform, uint32_t
Polarity)
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Function description
Configure the LPTIM instance output (LPTIMx_OUT)
Parameters
LPTIMx: Low-Power Timer instance
Waveform: This parameter can be one of the following
values:
LL_LPTIM_OUTPUT_WAVEFORM_PWM
LL_LPTIM_OUTPUT_WAVEFORM_SETONCE
Polarity: This parameter can be one of the following values:
LL_LPTIM_OUTPUT_POLARITY_REGULAR
LL_LPTIM_OUTPUT_POLARITY_INVERSE
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Regarding the LPTIM output polarity the change takes effect
immediately, so the output default value will change
immediately after the polarity is re-configured, even before the
timer is enabled.
Reference Manual to
LL API cross
reference:
CFGR WAVE LL_LPTIM_ConfigOutput
CFGR WAVPOL LL_LPTIM_ConfigOutput
LL_LPTIM_SetWaveform
Function name
__STATIC_INLINE void LL_LPTIM_SetWaveform
(LPTIM_TypeDef * LPTIMx, uint32_t Waveform)
Function description
Set waveform shape.
Parameters
LPTIMx: Low-Power Timer instance
Waveform: This parameter can be one of the following
values:
LL_LPTIM_OUTPUT_WAVEFORM_PWM
LL_LPTIM_OUTPUT_WAVEFORM_SETONCE
Return values
None
Reference Manual to
LL API cross
reference:
CFGR WAVE LL_LPTIM_SetWaveform
LL_LPTIM_GetWaveform
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetWaveform
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual waveform shape.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_OUTPUT_WAVEFORM_PWM
LL_LPTIM_OUTPUT_WAVEFORM_SETONCE
Reference Manual to
LL API cross
reference:
CFGR WAVE LL_LPTIM_GetWaveform
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LL_LPTIM_SetPolarity
Function name
__STATIC_INLINE void LL_LPTIM_SetPolarity
(LPTIM_TypeDef * LPTIMx, uint32_t Polarity)
Function description
Set output polarity.
Parameters
LPTIMx: Low-Power Timer instance
Polarity: This parameter can be one of the following values:
LL_LPTIM_OUTPUT_POLARITY_REGULAR
LL_LPTIM_OUTPUT_POLARITY_INVERSE
Return values
None
Reference Manual to
LL API cross
reference:
CFGR WAVPOL LL_LPTIM_SetPolarity
LL_LPTIM_GetPolarity
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetPolarity
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual output polarity.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_OUTPUT_POLARITY_REGULAR
LL_LPTIM_OUTPUT_POLARITY_INVERSE
Reference Manual to
LL API cross
reference:
CFGR WAVPOL LL_LPTIM_GetPolarity
LL_LPTIM_SetPrescaler
Function name
__STATIC_INLINE void LL_LPTIM_SetPrescaler
(LPTIM_TypeDef * LPTIMx, uint32_t Prescaler)
Function description
Set actual prescaler division ratio.
Parameters
LPTIMx: Low-Power Timer instance
Prescaler: This parameter can be one of the following
values:
LL_LPTIM_PRESCALER_DIV1
LL_LPTIM_PRESCALER_DIV2
LL_LPTIM_PRESCALER_DIV4
LL_LPTIM_PRESCALER_DIV8
LL_LPTIM_PRESCALER_DIV16
LL_LPTIM_PRESCALER_DIV32
LL_LPTIM_PRESCALER_DIV64
LL_LPTIM_PRESCALER_DIV128
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
When the LPTIM is configured to be clocked by an internal
clock source and the LPTIM counter is configured to be
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updated by active edges detected on the LPTIM external
Input1, the internal clock provided to the LPTIM must be not
be prescaled.
Reference Manual to
LL API cross
reference:
CFGR PRESC LL_LPTIM_SetPrescaler
LL_LPTIM_GetPrescaler
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetPrescaler
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual prescaler division ratio.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_PRESCALER_DIV1
LL_LPTIM_PRESCALER_DIV2
LL_LPTIM_PRESCALER_DIV4
LL_LPTIM_PRESCALER_DIV8
LL_LPTIM_PRESCALER_DIV16
LL_LPTIM_PRESCALER_DIV32
LL_LPTIM_PRESCALER_DIV64
LL_LPTIM_PRESCALER_DIV128
Reference Manual to
LL API cross
reference:
CFGR PRESC LL_LPTIM_GetPrescaler
LL_LPTIM_EnableTimeout
Function name
__STATIC_INLINE void LL_LPTIM_EnableTimeout
(LPTIM_TypeDef * LPTIMx)
Function description
Enable the timeout function.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
The first trigger event will start the timer, any successive
trigger event will reset the counter and the timer will restart.
The timeout value corresponds to the compare value; if no
trigger occurs within the expected time frame, the MCU is
waked-up by the compare match event.
Reference Manual to
LL API cross
reference:
CFGR TIMOUT LL_LPTIM_EnableTimeout
LL_LPTIM_DisableTimeout
Function name
__STATIC_INLINE void LL_LPTIM_DisableTimeout
(LPTIM_TypeDef * LPTIMx)
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Function description
Disable the timeout function.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
A trigger event arriving when the timer is already started will
be ignored.
Reference Manual to
LL API cross
reference:
CFGR TIMOUT LL_LPTIM_DisableTimeout
LL_LPTIM_IsEnabledTimeout
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledTimeout
(LPTIM_TypeDef * LPTIMx)
Function description
Indicate whether the timeout function is enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CFGR TIMOUT LL_LPTIM_IsEnabledTimeout
LL_LPTIM_TrigSw
Function name
__STATIC_INLINE void LL_LPTIM_TrigSw (LPTIM_TypeDef *
LPTIMx)
Function description
Start the LPTIM counter.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Reference Manual to
LL API cross
reference:
CFGR TRIGEN LL_LPTIM_TrigSw
LL_LPTIM_ConfigTrigger
Function name
__STATIC_INLINE void LL_LPTIM_ConfigTrigger
(LPTIM_TypeDef * LPTIMx, uint32_t Source, uint32_t Filter,
uint32_t Polarity)
Function description
Configure the external trigger used as a trigger event for the
LPTIM.
Parameters
LPTIMx: Low-Power Timer instance
Source: This parameter can be one of the following values:
LL_LPTIM_TRIG_SOURCE_GPIO
LL_LPTIM_TRIG_SOURCE_RTCALARMA
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LL_LPTIM_TRIG_SOURCE_RTCALARMB
LL_LPTIM_TRIG_SOURCE_RTCTAMP1
LL_LPTIM_TRIG_SOURCE_RTCTAMP2
LL_LPTIM_TRIG_SOURCE_RTCTAMP3
LL_LPTIM_TRIG_SOURCE_COMP1
LL_LPTIM_TRIG_SOURCE_COMP2
Filter: This parameter can be one of the following values:
LL_LPTIM_TRIG_FILTER_NONE
LL_LPTIM_TRIG_FILTER_2
LL_LPTIM_TRIG_FILTER_4
LL_LPTIM_TRIG_FILTER_8
Polarity: This parameter can be one of the following values:
LL_LPTIM_TRIG_POLARITY_RISING
LL_LPTIM_TRIG_POLARITY_FALLING
LL_LPTIM_TRIG_POLARITY_RISING_FALLING
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
An internal clock source must be present when a digital filter
is required for the trigger.
Reference Manual to
LL API cross
reference:
CFGR TRIGSEL LL_LPTIM_ConfigTrigger
CFGR TRGFLT LL_LPTIM_ConfigTrigger
CFGR TRIGEN LL_LPTIM_ConfigTrigger
LL_LPTIM_GetTriggerSource
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerSource
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual external trigger source.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_TRIG_SOURCE_GPIO
LL_LPTIM_TRIG_SOURCE_RTCALARMA
LL_LPTIM_TRIG_SOURCE_RTCALARMB
LL_LPTIM_TRIG_SOURCE_RTCTAMP1
LL_LPTIM_TRIG_SOURCE_RTCTAMP2
LL_LPTIM_TRIG_SOURCE_RTCTAMP3
LL_LPTIM_TRIG_SOURCE_COMP1
LL_LPTIM_TRIG_SOURCE_COMP2
Reference Manual to
LL API cross
reference:
CFGR TRIGSEL LL_LPTIM_GetTriggerSource
LL_LPTIM_GetTriggerFilter
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerFilter
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual external trigger filter.
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Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_TRIG_FILTER_NONE
LL_LPTIM_TRIG_FILTER_2
LL_LPTIM_TRIG_FILTER_4
LL_LPTIM_TRIG_FILTER_8
Reference Manual to
LL API cross
reference:
CFGR TRGFLT LL_LPTIM_GetTriggerFilter
LL_LPTIM_GetTriggerPolarity
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerPolarity
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual external trigger polarity.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_TRIG_POLARITY_RISING
LL_LPTIM_TRIG_POLARITY_FALLING
LL_LPTIM_TRIG_POLARITY_RISING_FALLING
Reference Manual to
LL API cross
reference:
CFGR TRIGEN LL_LPTIM_GetTriggerPolarity
LL_LPTIM_SetClockSource
Function name
__STATIC_INLINE void LL_LPTIM_SetClockSource
(LPTIM_TypeDef * LPTIMx, uint32_t ClockSource)
Function description
Set the source of the clock used by the LPTIM instance.
Parameters
LPTIMx: Low-Power Timer instance
ClockSource: This parameter can be one of the following
values:
LL_LPTIM_CLK_SOURCE_INTERNAL
LL_LPTIM_CLK_SOURCE_EXTERNAL
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Reference Manual to
LL API cross
reference:
CFGR CKSEL LL_LPTIM_SetClockSource
LL_LPTIM_GetClockSource
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetClockSource
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual LPTIM instance clock source.
Parameters
LPTIMx: Low-Power Timer instance
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Return values
Returned: value can be one of the following values:
LL_LPTIM_CLK_SOURCE_INTERNAL
LL_LPTIM_CLK_SOURCE_EXTERNAL
Reference Manual to
LL API cross
reference:
CFGR CKSEL LL_LPTIM_GetClockSource
LL_LPTIM_ConfigClock
Function name
__STATIC_INLINE void LL_LPTIM_ConfigClock
(LPTIM_TypeDef * LPTIMx, uint32_t ClockFilter, uint32_t
ClockPolarity)
Function description
Configure the active edge or edges used by the counter when the
LPTIM is clocked by an external clock source.
Parameters
LPTIMx: Low-Power Timer instance
ClockFilter: This parameter can be one of the following
values:
LL_LPTIM_CLK_FILTER_NONE
LL_LPTIM_CLK_FILTER_2
LL_LPTIM_CLK_FILTER_4
LL_LPTIM_CLK_FILTER_8
ClockPolarity: This parameter can be one of the following
values:
LL_LPTIM_CLK_POLARITY_RISING
LL_LPTIM_CLK_POLARITY_FALLING
LL_LPTIM_CLK_POLARITY_RISING_FALLING
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
When both external clock signal edges are considered active
ones, the LPTIM must also be clocked by an internal clock
source with a frequency equal to at least four times the
external clock frequency.
An internal clock source must be present when a digital filter
is required for external clock.
Reference Manual to
LL API cross
reference:
CFGR CKFLT LL_LPTIM_ConfigClock
CFGR CKPOL LL_LPTIM_ConfigClock
LL_LPTIM_GetClockPolarity
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetClockPolarity
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual clock polarity.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_CLK_POLARITY_RISING
LL_LPTIM_CLK_POLARITY_FALLING
LL_LPTIM_CLK_POLARITY_RISING_FALLING
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Reference Manual to
LL API cross
reference:
CFGR CKPOL LL_LPTIM_GetClockPolarity
LL_LPTIM_GetClockFilter
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetClockFilter
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual clock digital filter.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_CLK_FILTER_NONE
LL_LPTIM_CLK_FILTER_2
LL_LPTIM_CLK_FILTER_4
LL_LPTIM_CLK_FILTER_8
Reference Manual to
LL API cross
reference:
CFGR CKFLT LL_LPTIM_GetClockFilter
LL_LPTIM_SetEncoderMode
Function name
__STATIC_INLINE void LL_LPTIM_SetEncoderMode
(LPTIM_TypeDef * LPTIMx, uint32_t EncoderMode)
Function description
Configure the encoder mode.
Parameters
LPTIMx: Low-Power Timer instance
EncoderMode: This parameter can be one of the following
values:
LL_LPTIM_ENCODER_MODE_RISING
LL_LPTIM_ENCODER_MODE_FALLING
LL_LPTIM_ENCODER_MODE_RISING_FALLING
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Reference Manual to
LL API cross
reference:
CFGR CKPOL LL_LPTIM_SetEncoderMode
LL_LPTIM_GetEncoderMode
Function name
__STATIC_INLINE uint32_t LL_LPTIM_GetEncoderMode
(LPTIM_TypeDef * LPTIMx)
Function description
Get actual encoder mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
Returned: value can be one of the following values:
LL_LPTIM_ENCODER_MODE_RISING
LL_LPTIM_ENCODER_MODE_FALLING
LL_LPTIM_ENCODER_MODE_RISING_FALLING
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Reference Manual to
LL API cross
reference:
CFGR CKPOL LL_LPTIM_GetEncoderMode
LL_LPTIM_EnableEncoderMode
Function name
__STATIC_INLINE void LL_LPTIM_EnableEncoderMode
(LPTIM_TypeDef * LPTIMx)
Function description
Enable the encoder mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
In this mode the LPTIM instance must be clocked by an
internal clock source. Also, the prescaler division ratio must
be equal to 1.
LPTIM instance must be configured in continuous mode prior
enabling the encoder mode.
Reference Manual to
LL API cross
reference:
CFGR ENC LL_LPTIM_EnableEncoderMode
LL_LPTIM_DisableEncoderMode
Function name
__STATIC_INLINE void LL_LPTIM_DisableEncoderMode
(LPTIM_TypeDef * LPTIMx)
Function description
Disable the encoder mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Notes
This function must be called when the LPTIM instance is
disabled.
Reference Manual to
LL API cross
reference:
CFGR ENC LL_LPTIM_DisableEncoderMode
LL_LPTIM_IsEnabledEncoderMode
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledEncoderMode
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the LPTIM operates in encoder mode.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CFGR ENC LL_LPTIM_IsEnabledEncoderMode
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LL_LPTIM_ClearFLAG_CMPM
Function name
__STATIC_INLINE void LL_LPTIM_ClearFLAG_CMPM
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the compare match flag (CMPMCF)
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR CMPMCF LL_LPTIM_ClearFLAG_CMPM
LL_LPTIM_IsActiveFlag_CMPM
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_CMPM
(LPTIM_TypeDef * LPTIMx)
Function description
Inform application whether a compare match interrupt has
occurred.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CMPM LL_LPTIM_IsActiveFlag_CMPM
LL_LPTIM_ClearFLAG_ARRM
Function name
__STATIC_INLINE void LL_LPTIM_ClearFLAG_ARRM
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the autoreload match flag (ARRMCF)
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR ARRMCF LL_LPTIM_ClearFLAG_ARRM
LL_LPTIM_IsActiveFlag_ARRM
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_ARRM
(LPTIM_TypeDef * LPTIMx)
Function description
Inform application whether a autoreload match interrupt has
occured.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ARRM LL_LPTIM_IsActiveFlag_ARRM
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LL_LPTIM_ClearFlag_EXTTRIG
Function name
__STATIC_INLINE void LL_LPTIM_ClearFlag_EXTTRIG
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the external trigger valid edge flag(EXTTRIGCF).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR EXTTRIGCF LL_LPTIM_ClearFlag_EXTTRIG
LL_LPTIM_IsActiveFlag_EXTTRIG
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_EXTTRIG
(LPTIM_TypeDef * LPTIMx)
Function description
Inform application whether a valid edge on the selected external
trigger input has occurred.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR EXTTRIG LL_LPTIM_IsActiveFlag_EXTTRIG
LL_LPTIM_ClearFlag_CMPOK
Function name
__STATIC_INLINE void LL_LPTIM_ClearFlag_CMPOK
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the compare register update interrupt flag (CMPOKCF).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR CMPOKCF LL_LPTIM_ClearFlag_CMPOK
LL_LPTIM_IsActiveFlag_CMPOK
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_CMPOK
(LPTIM_TypeDef * LPTIMx)
Function description
Informs application whether the APB bus write operation to the
LPTIMx_CMP register has been successfully completed; If so, a
new one can be initiated.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CMPOK LL_LPTIM_IsActiveFlag_CMPOK
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LL_LPTIM_ClearFlag_ARROK
Function name
__STATIC_INLINE void LL_LPTIM_ClearFlag_ARROK
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the autoreload register update interrupt flag (ARROKCF).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR ARROKCF LL_LPTIM_ClearFlag_ARROK
LL_LPTIM_IsActiveFlag_ARROK
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_ARROK
(LPTIM_TypeDef * LPTIMx)
Function description
Informs application whether the APB bus write operation to the
LPTIMx_ARR register has been successfully completed; If so, a
new one can be initiated.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ARROK LL_LPTIM_IsActiveFlag_ARROK
LL_LPTIM_ClearFlag_UP
Function name
__STATIC_INLINE void LL_LPTIM_ClearFlag_UP
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the counter direction change to up interrupt flag (UPCF).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR UPCF LL_LPTIM_ClearFlag_UP
LL_LPTIM_IsActiveFlag_UP
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_UP
(LPTIM_TypeDef * LPTIMx)
Function description
Informs the application whether the counter direction has changed
from down to up (when the LPTIM instance operates in encoder
mode).
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
ISR UP LL_LPTIM_IsActiveFlag_UP
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LL_LPTIM_ClearFlag_DOWN
Function name
__STATIC_INLINE void LL_LPTIM_ClearFlag_DOWN
(LPTIM_TypeDef * LPTIMx)
Function description
Clear the counter direction change to down interrupt flag
(DOWNCF).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR DOWNCF LL_LPTIM_ClearFlag_DOWN
LL_LPTIM_IsActiveFlag_DOWN
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsActiveFlag_DOWN
(LPTIM_TypeDef * LPTIMx)
Function description
Informs the application whether the counter direction has changed
from up to down (when the LPTIM instance operates in encoder
mode).
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR DOWN LL_LPTIM_IsActiveFlag_DOWN
LL_LPTIM_EnableIT_CMPM
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_CMPM
(LPTIM_TypeDef * LPTIMx)
Function description
Enable compare match interrupt (CMPMIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER CMPMIE LL_LPTIM_EnableIT_CMPM
LL_LPTIM_DisableIT_CMPM
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_CMPM
(LPTIM_TypeDef * LPTIMx)
Function description
Disable compare match interrupt (CMPMIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
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Reference Manual to
LL API cross
reference:
IER CMPMIE LL_LPTIM_DisableIT_CMPM
LL_LPTIM_IsEnabledIT_CMPM
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_CMPM
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the compare match interrupt (CMPMIE) is
enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER CMPMIE LL_LPTIM_IsEnabledIT_CMPM
LL_LPTIM_EnableIT_ARRM
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_ARRM
(LPTIM_TypeDef * LPTIMx)
Function description
Enable autoreload match interrupt (ARRMIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER ARRMIE LL_LPTIM_EnableIT_ARRM
LL_LPTIM_DisableIT_ARRM
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_ARRM
(LPTIM_TypeDef * LPTIMx)
Function description
Disable autoreload match interrupt (ARRMIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER ARRMIE LL_LPTIM_DisableIT_ARRM
LL_LPTIM_IsEnabledIT_ARRM
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_ARRM
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the autoreload match interrupt (ARRMIE) is
enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
IER ARRMIE LL_LPTIM_IsEnabledIT_ARRM
LL_LPTIM_EnableIT_EXTTRIG
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_EXTTRIG
(LPTIM_TypeDef * LPTIMx)
Function description
Enable external trigger valid edge interrupt (EXTTRIGIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EXTTRIGIE LL_LPTIM_EnableIT_EXTTRIG
LL_LPTIM_DisableIT_EXTTRIG
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_EXTTRIG
(LPTIM_TypeDef * LPTIMx)
Function description
Disable external trigger valid edge interrupt (EXTTRIGIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER EXTTRIGIE LL_LPTIM_DisableIT_EXTTRIG
LL_LPTIM_IsEnabledIT_EXTTRIG
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_EXTTRIG
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates external trigger valid edge interrupt (EXTTRIGIE) is
enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER EXTTRIGIE LL_LPTIM_IsEnabledIT_EXTTRIG
LL_LPTIM_EnableIT_CMPOK
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_CMPOK
(LPTIM_TypeDef * LPTIMx)
Function description
Enable compare register write completed interrupt (CMPOKIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
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Reference Manual to
LL API cross
reference:
IER CMPOKIE LL_LPTIM_EnableIT_CMPOK
LL_LPTIM_DisableIT_CMPOK
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_CMPOK
(LPTIM_TypeDef * LPTIMx)
Function description
Disable compare register write completed interrupt (CMPOKIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER CMPOKIE LL_LPTIM_DisableIT_CMPOK
LL_LPTIM_IsEnabledIT_CMPOK
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_CMPOK
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the compare register write completed interrupt
(CMPOKIE) is enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER CMPOKIE LL_LPTIM_IsEnabledIT_CMPOK
LL_LPTIM_EnableIT_ARROK
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_ARROK
(LPTIM_TypeDef * LPTIMx)
Function description
Enable autoreload register write completed interrupt (ARROKIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER ARROKIE LL_LPTIM_EnableIT_ARROK
LL_LPTIM_DisableIT_ARROK
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_ARROK
(LPTIM_TypeDef * LPTIMx)
Function description
Disable autoreload register write completed interrupt (ARROKIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
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Reference Manual to
LL API cross
reference:
IER ARROKIE LL_LPTIM_DisableIT_ARROK
LL_LPTIM_IsEnabledIT_ARROK
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_ARROK
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the autoreload register write completed interrupt
(ARROKIE) is enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER ARROKIE LL_LPTIM_IsEnabledIT_ARROK
LL_LPTIM_EnableIT_UP
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_UP
(LPTIM_TypeDef * LPTIMx)
Function description
Enable direction change to up interrupt (UPIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER UPIE LL_LPTIM_EnableIT_UP
LL_LPTIM_DisableIT_UP
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_UP
(LPTIM_TypeDef * LPTIMx)
Function description
Disable direction change to up interrupt (UPIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER UPIE LL_LPTIM_DisableIT_UP
LL_LPTIM_IsEnabledIT_UP
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_UP
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the direction change to up interrupt (UPIE) is
enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
IER UPIE LL_LPTIM_IsEnabledIT_UP
LL_LPTIM_EnableIT_DOWN
Function name
__STATIC_INLINE void LL_LPTIM_EnableIT_DOWN
(LPTIM_TypeDef * LPTIMx)
Function description
Enable direction change to down interrupt (DOWNIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER DOWNIE LL_LPTIM_EnableIT_DOWN
LL_LPTIM_DisableIT_DOWN
Function name
__STATIC_INLINE void LL_LPTIM_DisableIT_DOWN
(LPTIM_TypeDef * LPTIMx)
Function description
Disable direction change to down interrupt (DOWNIE).
Parameters
LPTIMx: Low-Power Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
IER DOWNIE LL_LPTIM_DisableIT_DOWN
LL_LPTIM_IsEnabledIT_DOWN
Function name
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledIT_DOWN
(LPTIM_TypeDef * LPTIMx)
Function description
Indicates whether the direction change to down interrupt
(DOWNIE) is enabled.
Parameters
LPTIMx: Low-Power Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
IER DOWNIE LL_LPTIM_IsEnabledIT_DOWN
LL_LPTIM_DeInit
Function name
ErrorStatus LL_LPTIM_DeInit (LPTIM_TypeDef * LPTIMx)
Function description
Set LPTIMx registers to their reset values.
Parameters
LPTIMx: LP Timer instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: LPTIMx registers are de-initialized
ERROR: invalid LPTIMx instance
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LL_LPTIM_StructInit
Function name
void LL_LPTIM_StructInit (LL_LPTIM_InitTypeDef *
LPTIM_InitStruct)
Function description
Set each fields of the LPTIM_InitStruct structure to its default
value.
Parameters
LPTIM_InitStruct: pointer to a LL_LPTIM_InitTypeDef
structure
Return values
None
LL_LPTIM_Init
Function name
ErrorStatus LL_LPTIM_Init (LPTIM_TypeDef * LPTIMx,
LL_LPTIM_InitTypeDef * LPTIM_InitStruct)
Function description
Configure the LPTIMx peripheral according to the specified
parameters.
Parameters
LPTIMx: LP Timer Instance
LPTIM_InitStruct: pointer to a LL_LPTIM_InitTypeDef
structure
Return values
An: ErrorStatus enumeration value:
SUCCESS: LPTIMx instance has been initialized
ERROR: LPTIMx instance hasn't been initialized
Notes
LL_LPTIM_Init can only be called when the LPTIM instance is
disabled.
LPTIMx can be disabled using unitary function
LL_LPTIM_Disable().
66.3 LPTIM Firmware driver defines
66.3.1 LPTIM
Clock Filter
LL_LPTIM_CLK_FILTER_NONE
Any external clock signal level change is considered as
a valid transition
LL_LPTIM_CLK_FILTER_2
External clock signal level change must be stable for at
least 2 clock periods before it is considered as valid
transition
LL_LPTIM_CLK_FILTER_4
External clock signal level change must be stable for at
least 4 clock periods before it is considered as valid
transition
LL_LPTIM_CLK_FILTER_8
External clock signal level change must be stable for at
least 8 clock periods before it is considered as valid
transition
Clock Polarity
LL_LPTIM_CLK_POLARITY_RISING
The rising edge is the active edge used
for counting
LL_LPTIM_CLK_POLARITY_FALLING
The falling edge is the active edge used
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for counting
LL_LPTIM_CLK_POLARITY_RISING_FALLING
Both edges are active edges
Clock Source
LL_LPTIM_CLK_SOURCE_INTERNAL
LPTIM is clocked by internal clock source (APB
clock or any of the embedded oscillators)
LL_LPTIM_CLK_SOURCE_EXTERNAL
LPTIM is clocked by an external clock source
through the LPTIM external Input1
Counter Mode
LL_LPTIM_COUNTER_MODE_INTERNAL
The counter is incremented following each
internal clock pulse
LL_LPTIM_COUNTER_MODE_EXTERNAL
The counter is incremented following each
valid clock pulse on the LPTIM external
Input1
Encoder Mode
LL_LPTIM_ENCODER_MODE_RISING
The rising edge is the active edge
used for counting
LL_LPTIM_ENCODER_MODE_FALLING
The falling edge is the active edge
used for counting
LL_LPTIM_ENCODER_MODE_RISING_FALLING
Both edges are active edges
Get Flags Defines
LL_LPTIM_ISR_CMPM
Compare match
LL_LPTIM_ISR_ARRM
Autoreload match
LL_LPTIM_ISR_EXTTRIG
External trigger edge event
LL_LPTIM_ISR_CMPOK
Compare register update OK
LL_LPTIM_ISR_ARROK
Autoreload register update OK
LL_LPTIM_ISR_UP
Counter direction change down to up
LL_LPTIM_ISR_DOWN
Counter direction change up to down
IT Defines
LL_LPTIM_IER_CMPMIE
Compare match Interrupt Enable
LL_LPTIM_IER_ARRMIE
Autoreload match Interrupt Enable
LL_LPTIM_IER_EXTTRIGIE
External trigger valid edge Interrupt Enable
LL_LPTIM_IER_CMPOKIE
Compare register update OK Interrupt Enable
LL_LPTIM_IER_ARROKIE
Autoreload register update OK Interrupt Enable
LL_LPTIM_IER_UPIE
Direction change to UP Interrupt Enable
LL_LPTIM_IER_DOWNIE
Direction change to down Interrupt Enable
Operating Mode
LL_LPTIM_OPERATING_MODE_CONTINUOUS
LP Timer starts in continuous mode
LL_LPTIM_OPERATING_MODE_ONESHOT
LP Tilmer starts in single mode
Output Polarity
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LL_LPTIM_OUTPUT_POLARITY_REGULAR
The LPTIM output reflects the compare
results between LPTIMx_ARR and
LPTIMx_CMP registers
LL_LPTIM_OUTPUT_POLARITY_INVERSE
The LPTIM output reflects the inverse of
the compare results between
LPTIMx_ARR and LPTIMx_CMP registers
Output Waveform Type
LL_LPTIM_OUTPUT_WAVEFORM_PWM
LPTIM generates either a PWM
waveform or a One pulse waveform
depending on chosen operating mode
CONTINOUS or SINGLE
LL_LPTIM_OUTPUT_WAVEFORM_SETONCE
LPTIM generates a Set Once waveform
Prescaler Value
LL_LPTIM_PRESCALER_DIV1
Prescaler division factor is set to 1
LL_LPTIM_PRESCALER_DIV2
Prescaler division factor is set to 2
LL_LPTIM_PRESCALER_DIV4
Prescaler division factor is set to 4
LL_LPTIM_PRESCALER_DIV8
Prescaler division factor is set to 8
LL_LPTIM_PRESCALER_DIV16
Prescaler division factor is set to 16
LL_LPTIM_PRESCALER_DIV32
Prescaler division factor is set to 32
LL_LPTIM_PRESCALER_DIV64
Prescaler division factor is set to 64
LL_LPTIM_PRESCALER_DIV128
Prescaler division factor is set to 128
Trigger Filter
LL_LPTIM_TRIG_FILTER_NONE
Any trigger active level change is considered as a valid
trigger
LL_LPTIM_TRIG_FILTER_2
Trigger active level change must be stable for at least
2 clock periods before it is considered as valid trigger
LL_LPTIM_TRIG_FILTER_4
Trigger active level change must be stable for at least
4 clock periods before it is considered as valid trigger
LL_LPTIM_TRIG_FILTER_8
Trigger active level change must be stable for at least
8 clock periods before it is considered as valid trigger
Trigger Polarity
LL_LPTIM_TRIG_POLARITY_RISING
LPTIM counter starts when a rising
edge is detected
LL_LPTIM_TRIG_POLARITY_FALLING
LPTIM counter starts when a falling
edge is detected
LL_LPTIM_TRIG_POLARITY_RISING_FALLING
LPTIM counter starts when a rising or a
falling edge is detected
Trigger Source
LL_LPTIM_TRIG_SOURCE_GPIO
External input trigger is connected to
TIMx_ETR input
LL_LPTIM_TRIG_SOURCE_RTCALARMA
External input trigger is connected to RTC
Alarm A
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LL_LPTIM_TRIG_SOURCE_RTCALARMB
External input trigger is connected to RTC
Alarm B
LL_LPTIM_TRIG_SOURCE_RTCTAMP1
External input trigger is connected to RTC
Tamper 1
LL_LPTIM_TRIG_SOURCE_RTCTAMP2
External input trigger is connected to RTC
Tamper 2
LL_LPTIM_TRIG_SOURCE_RTCTAMP3
External input trigger is connected to RTC
Tamper 3
LL_LPTIM_TRIG_SOURCE_COMP1
External input trigger is connected to COMP1
output
LL_LPTIM_TRIG_SOURCE_COMP2
External input trigger is connected to COMP2
output
Update Mode
LL_LPTIM_UPDATE_MODE_IMMEDIATE
Preload is disabled: registers are updated
after each APB bus write access
LL_LPTIM_UPDATE_MODE_ENDOFPERIOD
preload is enabled: registers are updated
at the end of the current LPTIM period
Common Write and read registers Macros
LL_LPTIM_WriteReg
Description:
Write a value in LPTIM register.
Parameters:
__INSTANCE__: LPTIM Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_LPTIM_ReadReg
Description:
Read a value in LPTIM register.
Parameters:
__INSTANCE__: LPTIM Instance
__REG__: Register to be read
Return value:
Register: value
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67 LL LPUART Generic Driver
67.1 LPUART Firmware driver registers structures
67.1.1 LL_LPUART_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t DataWidth
uint32_t StopBits
uint32_t Parity
uint32_t TransferDirection
uint32_t HardwareFlowControl
Field Documentation
uint32_t LL_LPUART_InitTypeDef::BaudRate
This field defines expected LPUART communication baud rate.This feature can be
modified afterwards using unitary function LL_LPUART_SetBaudRate().
uint32_t LL_LPUART_InitTypeDef::DataWidth
Specifies the number of data bits transmitted or received in a frame. This parameter
can be a value of LPUART_LL_EC_DATAWIDTH.This feature can be modified
afterwards using unitary function LL_LPUART_SetDataWidth().
uint32_t LL_LPUART_InitTypeDef::StopBits
Specifies the number of stop bits transmitted. This parameter can be a value of
LPUART_LL_EC_STOPBITS.This feature can be modified afterwards using unitary
function LL_LPUART_SetStopBitsLength().
uint32_t LL_LPUART_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of
LPUART_LL_EC_PARITY.This feature can be modified afterwards using unitary
function LL_LPUART_SetParity().
uint32_t LL_LPUART_InitTypeDef::TransferDirection
Specifies whether the Receive and/or Transmit mode is enabled or disabled. This
parameter can be a value of LPUART_LL_EC_DIRECTION.This feature can be
modified afterwards using unitary function LL_LPUART_SetTransferDirection().
uint32_t LL_LPUART_InitTypeDef::HardwareFlowControl
Specifies whether the hardware flow control mode is enabled or disabled. This
parameter can be a value of LPUART_LL_EC_HWCONTROL.This feature can be
modified afterwards using unitary function LL_LPUART_SetHWFlowCtrl().
67.2 LPUART Firmware driver API description
67.2.1 Detailed description of functions
LL_LPUART_Enable
Function name
__STATIC_INLINE void LL_LPUART_Enable (USART_TypeDef
* LPUARTx)
Function description
LPUART Enable.
Parameters
LPUARTx: LPUART Instance
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Return values
None
Reference Manual to
LL API cross
reference:
CR1 UE LL_LPUART_Enable
LL_LPUART_Disable
Function name
__STATIC_INLINE void LL_LPUART_Disable
(USART_TypeDef * LPUARTx)
Function description
LPUART Disable.
Parameters
LPUARTx: LPUART Instance
Return values
None
Notes
When LPUART is disabled, LPUART prescalers and outputs
are stopped immediately, and current operations are
discarded. The configuration of the LPUART is kept, but all
the status flags, in the LPUARTx_ISR are set to their default
values.
In order to go into low-power mode without generating errors
on the line, the TE bit must be reset before and the software
must wait for the TC bit in the LPUART_ISR to be set before
resetting the UE bit. The DMA requests are also reset when
UE = 0 so the DMA channel must be disabled before resetting
the UE bit.
Reference Manual to
LL API cross
reference:
CR1 UE LL_LPUART_Disable
LL_LPUART_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabled
(USART_TypeDef * LPUARTx)
Function description
Indicate if LPUART is enabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 UE LL_LPUART_IsEnabled
LL_LPUART_EnableInStopMode
Function name
__STATIC_INLINE void LL_LPUART_EnableInStopMode
(USART_TypeDef * LPUARTx)
Function description
LPUART enabled in STOP Mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Notes
When this function is enabled, LPUART is able to wake up
the MCU from Stop mode, provided that LPUART clock
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selection is HSI or LSE in RCC.
Reference Manual to
LL API cross
reference:
CR1 UESM LL_LPUART_EnableInStopMode
LL_LPUART_DisableInStopMode
Function name
__STATIC_INLINE void LL_LPUART_DisableInStopMode
(USART_TypeDef * LPUARTx)
Function description
LPUART disabled in STOP Mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Notes
When this function is disabled, LPUART is not able to wake
up the MCU from Stop mode
Reference Manual to
LL API cross
reference:
CR1 UESM LL_LPUART_DisableInStopMode
LL_LPUART_IsEnabledInStopMode
Function name
__STATIC_INLINE uint32_t
LL_LPUART_IsEnabledInStopMode (USART_TypeDef *
LPUARTx)
Function description
Indicate if LPUART is enabled in STOP Mode (able to wake up
MCU from Stop mode or not)
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 UESM LL_LPUART_IsEnabledInStopMode
LL_LPUART_EnableDirectionRx
Function name
__STATIC_INLINE void LL_LPUART_EnableDirectionRx
(USART_TypeDef * LPUARTx)
Function description
Receiver Enable (Receiver is enabled and begins searching for a
start bit)
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_LPUART_EnableDirectionRx
LL_LPUART_DisableDirectionRx
Function name
__STATIC_INLINE void LL_LPUART_DisableDirectionRx
(USART_TypeDef * LPUARTx)
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Function description
Receiver Disable.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_LPUART_DisableDirectionRx
LL_LPUART_EnableDirectionTx
Function name
__STATIC_INLINE void LL_LPUART_EnableDirectionTx
(USART_TypeDef * LPUARTx)
Function description
Transmitter Enable.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TE LL_LPUART_EnableDirectionTx
LL_LPUART_DisableDirectionTx
Function name
__STATIC_INLINE void LL_LPUART_DisableDirectionTx
(USART_TypeDef * LPUARTx)
Function description
Transmitter Disable.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TE LL_LPUART_DisableDirectionTx
LL_LPUART_SetTransferDirection
Function name
__STATIC_INLINE void LL_LPUART_SetTransferDirection
(USART_TypeDef * LPUARTx, uint32_t TransferDirection)
Function description
Configure simultaneously enabled/disabled states of Transmitter
and Receiver.
Parameters
LPUARTx: LPUART Instance
TransferDirection: This parameter can be one of the
following values:
LL_LPUART_DIRECTION_NONE
LL_LPUART_DIRECTION_RX
LL_LPUART_DIRECTION_TX
LL_LPUART_DIRECTION_TX_RX
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_LPUART_SetTransferDirection
CR1 TE LL_LPUART_SetTransferDirection
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LL_LPUART_GetTransferDirection
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetTransferDirection
(USART_TypeDef * LPUARTx)
Function description
Return enabled/disabled states of Transmitter and Receiver.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_DIRECTION_NONE
LL_LPUART_DIRECTION_RX
LL_LPUART_DIRECTION_TX
LL_LPUART_DIRECTION_TX_RX
Reference Manual to
LL API cross
reference:
CR1 RE LL_LPUART_GetTransferDirection
CR1 TE LL_LPUART_GetTransferDirection
LL_LPUART_SetParity
Function name
__STATIC_INLINE void LL_LPUART_SetParity
(USART_TypeDef * LPUARTx, uint32_t Parity)
Function description
Configure Parity (enabled/disabled and parity mode if enabled)
Parameters
LPUARTx: LPUART Instance
Parity: This parameter can be one of the following values:
LL_LPUART_PARITY_NONE
LL_LPUART_PARITY_EVEN
LL_LPUART_PARITY_ODD
Return values
None
Notes
This function selects if hardware parity control (generation
and detection) is enabled or disabled. When the parity control
is enabled (Odd or Even), computed parity bit is inserted at
the MSB position (depending on data width) and parity is
checked on the received data.
Reference Manual to
LL API cross
reference:
CR1 PS LL_LPUART_SetParity
CR1 PCE LL_LPUART_SetParity
LL_LPUART_GetParity
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetParity
(USART_TypeDef * LPUARTx)
Function description
Return Parity configuration (enabled/disabled and parity mode if
enabled)
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_PARITY_NONE
LL_LPUART_PARITY_EVEN
LL_LPUART_PARITY_ODD
Reference Manual to
LL API cross
CR1 PS LL_LPUART_GetParity
LL LPUART Generic Driver
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reference:
CR1 PCE LL_LPUART_GetParity
LL_LPUART_SetWakeUpMethod
Function name
__STATIC_INLINE void LL_LPUART_SetWakeUpMethod
(USART_TypeDef * LPUARTx, uint32_t Method)
Function description
Set Receiver Wake Up method from Mute mode.
Parameters
LPUARTx: LPUART Instance
Method: This parameter can be one of the following values:
LL_LPUART_WAKEUP_IDLELINE
LL_LPUART_WAKEUP_ADDRESSMARK
Return values
None
Reference Manual to
LL API cross
reference:
CR1 WAKE LL_LPUART_SetWakeUpMethod
LL_LPUART_GetWakeUpMethod
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetWakeUpMethod
(USART_TypeDef * LPUARTx)
Function description
Return Receiver Wake Up method from Mute mode.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_WAKEUP_IDLELINE
LL_LPUART_WAKEUP_ADDRESSMARK
Reference Manual to
LL API cross
reference:
CR1 WAKE LL_LPUART_GetWakeUpMethod
LL_LPUART_SetDataWidth
Function name
__STATIC_INLINE void LL_LPUART_SetDataWidth
(USART_TypeDef * LPUARTx, uint32_t DataWidth)
Function description
Set Word length (nb of data bits, excluding start and stop bits)
Parameters
LPUARTx: LPUART Instance
DataWidth: This parameter can be one of the following
values:
LL_LPUART_DATAWIDTH_7B
LL_LPUART_DATAWIDTH_8B
LL_LPUART_DATAWIDTH_9B
Return values
None
Reference Manual to
LL API cross
reference:
CR1 M LL_LPUART_SetDataWidth
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LL_LPUART_GetDataWidth
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetDataWidth
(USART_TypeDef * LPUARTx)
Function description
Return Word length (i.e.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_DATAWIDTH_7B
LL_LPUART_DATAWIDTH_8B
LL_LPUART_DATAWIDTH_9B
Reference Manual to
LL API cross
reference:
CR1 M LL_LPUART_GetDataWidth
LL_LPUART_EnableMuteMode
Function name
__STATIC_INLINE void LL_LPUART_EnableMuteMode
(USART_TypeDef * LPUARTx)
Function description
Allow switch between Mute Mode and Active mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 MME LL_LPUART_EnableMuteMode
LL_LPUART_DisableMuteMode
Function name
__STATIC_INLINE void LL_LPUART_DisableMuteMode
(USART_TypeDef * LPUARTx)
Function description
Prevent Mute Mode use.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 MME LL_LPUART_DisableMuteMode
LL_LPUART_IsEnabledMuteMode
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledMuteMode
(USART_TypeDef * LPUARTx)
Function description
Indicate if switch between Mute Mode and Active mode is allowed.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 MME LL_LPUART_IsEnabledMuteMode
LL LPUART Generic Driver
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LL_LPUART_SetStopBitsLength
Function name
__STATIC_INLINE void LL_LPUART_SetStopBitsLength
(USART_TypeDef * LPUARTx, uint32_t StopBits)
Function description
Set the length of the stop bits.
Parameters
LPUARTx: LPUART Instance
StopBits: This parameter can be one of the following values:
LL_LPUART_STOPBITS_1
LL_LPUART_STOPBITS_2
Return values
None
Reference Manual to
LL API cross
reference:
CR2 STOP LL_LPUART_SetStopBitsLength
LL_LPUART_GetStopBitsLength
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetStopBitsLength
(USART_TypeDef * LPUARTx)
Function description
Retrieve the length of the stop bits.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_STOPBITS_1
LL_LPUART_STOPBITS_2
Reference Manual to
LL API cross
reference:
CR2 STOP LL_LPUART_GetStopBitsLength
LL_LPUART_ConfigCharacter
Function name
__STATIC_INLINE void LL_LPUART_ConfigCharacter
(USART_TypeDef * LPUARTx, uint32_t DataWidth, uint32_t
Parity, uint32_t StopBits)
Function description
Configure Character frame format (Datawidth, Parity control, Stop
Bits)
Parameters
LPUARTx: LPUART Instance
DataWidth: This parameter can be one of the following
values:
LL_LPUART_DATAWIDTH_7B
LL_LPUART_DATAWIDTH_8B
LL_LPUART_DATAWIDTH_9B
Parity: This parameter can be one of the following values:
LL_LPUART_PARITY_NONE
LL_LPUART_PARITY_EVEN
LL_LPUART_PARITY_ODD
StopBits: This parameter can be one of the following values:
LL_LPUART_STOPBITS_1
LL_LPUART_STOPBITS_2
Return values
None
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Notes
Call of this function is equivalent to following function call
sequence : Data Width configuration using
LL_LPUART_SetDataWidth() functionParity Control and
mode configuration using LL_LPUART_SetParity()
functionStop bits configuration using
LL_LPUART_SetStopBitsLength() function
Reference Manual to
LL API cross
reference:
CR1 PS LL_LPUART_ConfigCharacter
CR1 PCE LL_LPUART_ConfigCharacter
CR1 M LL_LPUART_ConfigCharacter
CR2 STOP LL_LPUART_ConfigCharacter
LL_LPUART_SetTXRXSwap
Function name
__STATIC_INLINE void LL_LPUART_SetTXRXSwap
(USART_TypeDef * LPUARTx, uint32_t SwapConfig)
Function description
Configure TX/RX pins swapping setting.
Parameters
LPUARTx: LPUART Instance
SwapConfig: This parameter can be one of the following
values:
LL_LPUART_TXRX_STANDARD
LL_LPUART_TXRX_SWAPPED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 SWAP LL_LPUART_SetTXRXSwap
LL_LPUART_GetTXRXSwap
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetTXRXSwap
(USART_TypeDef * LPUARTx)
Function description
Retrieve TX/RX pins swapping configuration.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_TXRX_STANDARD
LL_LPUART_TXRX_SWAPPED
Reference Manual to
LL API cross
reference:
CR2 SWAP LL_LPUART_GetTXRXSwap
LL_LPUART_SetRXPinLevel
Function name
__STATIC_INLINE void LL_LPUART_SetRXPinLevel
(USART_TypeDef * LPUARTx, uint32_t PinInvMethod)
Function description
Configure RX pin active level logic.
Parameters
LPUARTx: LPUART Instance
PinInvMethod: This parameter can be one of the following
values:
LL_LPUART_RXPIN_LEVEL_STANDARD
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LL_LPUART_RXPIN_LEVEL_INVERTED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXINV LL_LPUART_SetRXPinLevel
LL_LPUART_GetRXPinLevel
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetRXPinLevel
(USART_TypeDef * LPUARTx)
Function description
Retrieve RX pin active level logic configuration.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_RXPIN_LEVEL_STANDARD
LL_LPUART_RXPIN_LEVEL_INVERTED
Reference Manual to
LL API cross
reference:
CR2 RXINV LL_LPUART_GetRXPinLevel
LL_LPUART_SetTXPinLevel
Function name
__STATIC_INLINE void LL_LPUART_SetTXPinLevel
(USART_TypeDef * LPUARTx, uint32_t PinInvMethod)
Function description
Configure TX pin active level logic.
Parameters
LPUARTx: LPUART Instance
PinInvMethod: This parameter can be one of the following
values:
LL_LPUART_TXPIN_LEVEL_STANDARD
LL_LPUART_TXPIN_LEVEL_INVERTED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXINV LL_LPUART_SetTXPinLevel
LL_LPUART_GetTXPinLevel
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetTXPinLevel
(USART_TypeDef * LPUARTx)
Function description
Retrieve TX pin active level logic configuration.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_TXPIN_LEVEL_STANDARD
LL_LPUART_TXPIN_LEVEL_INVERTED
Reference Manual to
LL API cross
reference:
CR2 TXINV LL_LPUART_GetTXPinLevel
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LL_LPUART_SetBinaryDataLogic
Function name
__STATIC_INLINE void LL_LPUART_SetBinaryDataLogic
(USART_TypeDef * LPUARTx, uint32_t DataLogic)
Function description
Configure Binary data logic.
Parameters
LPUARTx: LPUART Instance
DataLogic: This parameter can be one of the following
values:
LL_LPUART_BINARY_LOGIC_POSITIVE
LL_LPUART_BINARY_LOGIC_NEGATIVE
Return values
None
Notes
Allow to define how Logical data from the data register are
send/received : either in positive/direct logic (1=H, 0=L) or in
negative/inverse logic (1=L, 0=H)
Reference Manual to
LL API cross
reference:
CR2 DATAINV LL_LPUART_SetBinaryDataLogic
LL_LPUART_GetBinaryDataLogic
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetBinaryDataLogic
(USART_TypeDef * LPUARTx)
Function description
Retrieve Binary data configuration.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_BINARY_LOGIC_POSITIVE
LL_LPUART_BINARY_LOGIC_NEGATIVE
Reference Manual to
LL API cross
reference:
CR2 DATAINV LL_LPUART_GetBinaryDataLogic
LL_LPUART_SetTransferBitOrder
Function name
__STATIC_INLINE void LL_LPUART_SetTransferBitOrder
(USART_TypeDef * LPUARTx, uint32_t BitOrder)
Function description
Configure transfer bit order (either Less or Most Significant Bit
First)
Parameters
LPUARTx: LPUART Instance
BitOrder: This parameter can be one of the following values:
LL_LPUART_BITORDER_LSBFIRST
LL_LPUART_BITORDER_MSBFIRST
Return values
None
Notes
MSB First means data is transmitted/received with the MSB
first, following the start bit. LSB First means data is
transmitted/received with data bit 0 first, following the start bit.
Reference Manual to
LL API cross
CR2 MSBFIRST LL_LPUART_SetTransferBitOrder
LL LPUART Generic Driver
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reference:
LL_LPUART_GetTransferBitOrder
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetTransferBitOrder
(USART_TypeDef * LPUARTx)
Function description
Return transfer bit order (either Less or Most Significant Bit First)
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_BITORDER_LSBFIRST
LL_LPUART_BITORDER_MSBFIRST
Notes
MSB First means data is transmitted/received with the MSB
first, following the start bit. LSB First means data is
transmitted/received with data bit 0 first, following the start bit.
Reference Manual to
LL API cross
reference:
CR2 MSBFIRST LL_LPUART_GetTransferBitOrder
LL_LPUART_ConfigNodeAddress
Function name
__STATIC_INLINE void LL_LPUART_ConfigNodeAddress
(USART_TypeDef * LPUARTx, uint32_t AddressLen, uint32_t
NodeAddress)
Function description
Set Address of the LPUART node.
Parameters
LPUARTx: LPUART Instance
AddressLen: This parameter can be one of the following
values:
LL_LPUART_ADDRESS_DETECT_4B
LL_LPUART_ADDRESS_DETECT_7B
NodeAddress: 4 or 7 bit Address of the LPUART node.
Return values
None
Notes
This is used in multiprocessor communication during Mute
mode or Stop mode, for wake up with address mark
detection.
4bits address node is used when 4-bit Address Detection is
selected in ADDM7. (b7-b4 should be set to 0) 8bits address
node is used when 7-bit Address Detection is selected in
ADDM7. (This is used in multiprocessor communication
during Mute mode or Stop mode, for wake up with 7-bit
address mark detection. The MSB of the character sent by
the transmitter should be equal to 1. It may also be used for
character detection during normal reception, Mute mode
inactive (for example, end of block detection in ModBus
protocol). In this case, the whole received character (8-bit) is
compared to the ADD[7:0] value and CMF flag is set on
match)
Reference Manual to
LL API cross
reference:
CR2 ADD LL_LPUART_ConfigNodeAddress
CR2 ADDM7 LL_LPUART_ConfigNodeAddress
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LL_LPUART_GetNodeAddress
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddress
(USART_TypeDef * LPUARTx)
Function description
Return 8 bit Address of the LPUART node as set in ADD field of
CR2.
Parameters
LPUARTx: LPUART Instance
Return values
Address: of the LPUART node (Value between Min_Data=0
and Max_Data=255)
Notes
If 4-bit Address Detection is selected in ADDM7, only 4bits
(b3-b0) of returned value are relevant (b31-b4 are not
relevant) If 7-bit Address Detection is selected in ADDM7,
only 8bits (b7-b0) of returned value are relevant (b31-b8 are
not relevant)
Reference Manual to
LL API cross
reference:
CR2 ADD LL_LPUART_GetNodeAddress
LL_LPUART_GetNodeAddressLen
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddressLen
(USART_TypeDef * LPUARTx)
Function description
Return Length of Node Address used in Address Detection mode
(7-bit or 4-bit)
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_ADDRESS_DETECT_4B
LL_LPUART_ADDRESS_DETECT_7B
Reference Manual to
LL API cross
reference:
CR2 ADDM7 LL_LPUART_GetNodeAddressLen
LL_LPUART_EnableRTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_LPUART_EnableRTSHWFlowCtrl
(USART_TypeDef * LPUARTx)
Function description
Enable RTS HW Flow Control.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_LPUART_EnableRTSHWFlowCtrl
LL_LPUART_DisableRTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_LPUART_DisableRTSHWFlowCtrl
(USART_TypeDef * LPUARTx)
LL LPUART Generic Driver
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Function description
Disable RTS HW Flow Control.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_LPUART_DisableRTSHWFlowCtrl
LL_LPUART_EnableCTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_LPUART_EnableCTSHWFlowCtrl
(USART_TypeDef * LPUARTx)
Function description
Enable CTS HW Flow Control.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 CTSE LL_LPUART_EnableCTSHWFlowCtrl
LL_LPUART_DisableCTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_LPUART_DisableCTSHWFlowCtrl
(USART_TypeDef * LPUARTx)
Function description
Disable CTS HW Flow Control.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 CTSE LL_LPUART_DisableCTSHWFlowCtrl
LL_LPUART_SetHWFlowCtrl
Function name
__STATIC_INLINE void LL_LPUART_SetHWFlowCtrl
(USART_TypeDef * LPUARTx, uint32_t HardwareFlowControl)
Function description
Configure HW Flow Control mode (both CTS and RTS)
Parameters
LPUARTx: LPUART Instance
HardwareFlowControl: This parameter can be one of the
following values:
LL_LPUART_HWCONTROL_NONE
LL_LPUART_HWCONTROL_RTS
LL_LPUART_HWCONTROL_CTS
LL_LPUART_HWCONTROL_RTS_CTS
Return values
None
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_LPUART_SetHWFlowCtrl
CR3 CTSE LL_LPUART_SetHWFlowCtrl
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LL_LPUART_GetHWFlowCtrl
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetHWFlowCtrl
(USART_TypeDef * LPUARTx)
Function description
Return HW Flow Control configuration (both CTS and RTS)
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_HWCONTROL_NONE
LL_LPUART_HWCONTROL_RTS
LL_LPUART_HWCONTROL_CTS
LL_LPUART_HWCONTROL_RTS_CTS
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_LPUART_GetHWFlowCtrl
CR3 CTSE LL_LPUART_GetHWFlowCtrl
LL_LPUART_EnableOverrunDetect
Function name
__STATIC_INLINE void LL_LPUART_EnableOverrunDetect
(USART_TypeDef * LPUARTx)
Function description
Enable Overrun detection.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 OVRDIS LL_LPUART_EnableOverrunDetect
LL_LPUART_DisableOverrunDetect
Function name
__STATIC_INLINE void LL_LPUART_DisableOverrunDetect
(USART_TypeDef * LPUARTx)
Function description
Disable Overrun detection.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 OVRDIS LL_LPUART_DisableOverrunDetect
LL_LPUART_IsEnabledOverrunDetect
Function name
__STATIC_INLINE uint32_t
LL_LPUART_IsEnabledOverrunDetect (USART_TypeDef *
LPUARTx)
Function description
Indicate if Overrun detection is enabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
CR3 OVRDIS LL_LPUART_IsEnabledOverrunDetect
LL LPUART Generic Driver
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reference:
LL_LPUART_SetWKUPType
Function name
__STATIC_INLINE void LL_LPUART_SetWKUPType
(USART_TypeDef * LPUARTx, uint32_t Type)
Function description
Select event type for Wake UP Interrupt Flag (WUS[1:0] bits)
Parameters
LPUARTx: LPUART Instance
Type: This parameter can be one of the following values:
LL_LPUART_WAKEUP_ON_ADDRESS
LL_LPUART_WAKEUP_ON_STARTBIT
LL_LPUART_WAKEUP_ON_RXNE
Return values
None
Reference Manual to
LL API cross
reference:
CR3 WUS LL_LPUART_SetWKUPType
LL_LPUART_GetWKUPType
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetWKUPType
(USART_TypeDef * LPUARTx)
Function description
Return event type for Wake UP Interrupt Flag (WUS[1:0] bits)
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_WAKEUP_ON_ADDRESS
LL_LPUART_WAKEUP_ON_STARTBIT
LL_LPUART_WAKEUP_ON_RXNE
Reference Manual to
LL API cross
reference:
CR3 WUS LL_LPUART_GetWKUPType
LL_LPUART_SetBaudRate
Function name
__STATIC_INLINE void LL_LPUART_SetBaudRate
(USART_TypeDef * LPUARTx, uint32_t PeriphClk, uint32_t
BaudRate)
Function description
Configure LPUART BRR register for achieving expected Baud
Rate value.
Parameters
LPUARTx: LPUART Instance
PeriphClk: Peripheral Clock
BaudRate: Baud Rate
Return values
None
Notes
Compute and set LPUARTDIV value in BRR Register (full
BRR content) according to used Peripheral Clock and
expected Baud Rate values
Peripheral clock and Baud Rate values provided as function
parameters should be valid (Baud rate value != 0).
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Provided that LPUARTx_BRR must be > = 0x300 and
LPUART_BRR is 20-bit, a care should be taken when
generating high baud rates using high PeriphClk values.
PeriphClk must be in the range [3 x BaudRate, 4096 x
BaudRate].
Reference Manual to
LL API cross
reference:
BRR BRR LL_LPUART_SetBaudRate
LL_LPUART_GetBaudRate
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetBaudRate
(USART_TypeDef * LPUARTx, uint32_t PeriphClk)
Function description
Return current Baud Rate value, according to LPUARTDIV present
in BRR register (full BRR content), and to used Peripheral Clock
values.
Parameters
LPUARTx: LPUART Instance
PeriphClk: Peripheral Clock
Return values
Baud: Rate
Notes
In case of non-initialized or invalid value stored in BRR
register, value 0 will be returned.
Reference Manual to
LL API cross
reference:
BRR BRR LL_LPUART_GetBaudRate
LL_LPUART_EnableHalfDuplex
Function name
__STATIC_INLINE void LL_LPUART_EnableHalfDuplex
(USART_TypeDef * LPUARTx)
Function description
Enable Single Wire Half-Duplex mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_LPUART_EnableHalfDuplex
LL_LPUART_DisableHalfDuplex
Function name
__STATIC_INLINE void LL_LPUART_DisableHalfDuplex
(USART_TypeDef * LPUARTx)
Function description
Disable Single Wire Half-Duplex mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_LPUART_DisableHalfDuplex
LL LPUART Generic Driver
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LL_LPUART_IsEnabledHalfDuplex
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledHalfDuplex
(USART_TypeDef * LPUARTx)
Function description
Indicate if Single Wire Half-Duplex mode is enabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_LPUART_IsEnabledHalfDuplex
LL_LPUART_SetDEDeassertionTime
Function name
__STATIC_INLINE void LL_LPUART_SetDEDeassertionTime
(USART_TypeDef * LPUARTx, uint32_t Time)
Function description
Set DEDT (Driver Enable De-Assertion Time), Time value
expressed on 5 bits ([4:0] bits).
Parameters
LPUARTx: LPUART Instance
Time: Value between Min_Data=0 and Max_Data=31
Return values
None
Reference Manual to
LL API cross
reference:
CR1 DEDT LL_LPUART_SetDEDeassertionTime
LL_LPUART_GetDEDeassertionTime
Function name
__STATIC_INLINE uint32_t
LL_LPUART_GetDEDeassertionTime (USART_TypeDef *
LPUARTx)
Function description
Return DEDT (Driver Enable De-Assertion Time)
Parameters
LPUARTx: LPUART Instance
Return values
Time: value expressed on 5 bits ([4:0] bits) : c
Reference Manual to
LL API cross
reference:
CR1 DEDT LL_LPUART_GetDEDeassertionTime
LL_LPUART_SetDEAssertionTime
Function name
__STATIC_INLINE void LL_LPUART_SetDEAssertionTime
(USART_TypeDef * LPUARTx, uint32_t Time)
Function description
Set DEAT (Driver Enable Assertion Time), Time value expressed
on 5 bits ([4:0] bits).
Parameters
LPUARTx: LPUART Instance
Time: Value between Min_Data=0 and Max_Data=31
Return values
None
Reference Manual to
CR1 DEAT LL_LPUART_SetDEAssertionTime
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LL API cross
reference:
LL_LPUART_GetDEAssertionTime
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetDEAssertionTime
(USART_TypeDef * LPUARTx)
Function description
Return DEAT (Driver Enable Assertion Time)
Parameters
LPUARTx: LPUART Instance
Return values
Time: value expressed on 5 bits ([4:0] bits) : Time Value
between Min_Data=0 and Max_Data=31
Reference Manual to
LL API cross
reference:
CR1 DEAT LL_LPUART_GetDEAssertionTime
LL_LPUART_EnableDEMode
Function name
__STATIC_INLINE void LL_LPUART_EnableDEMode
(USART_TypeDef * LPUARTx)
Function description
Enable Driver Enable (DE) Mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DEM LL_LPUART_EnableDEMode
LL_LPUART_DisableDEMode
Function name
__STATIC_INLINE void LL_LPUART_DisableDEMode
(USART_TypeDef * LPUARTx)
Function description
Disable Driver Enable (DE) Mode.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DEM LL_LPUART_DisableDEMode
LL_LPUART_IsEnabledDEMode
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDEMode
(USART_TypeDef * LPUARTx)
Function description
Indicate if Driver Enable (DE) Mode is enabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
CR3 DEM LL_LPUART_IsEnabledDEMode
LL LPUART Generic Driver
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reference:
LL_LPUART_SetDESignalPolarity
Function name
__STATIC_INLINE void LL_LPUART_SetDESignalPolarity
(USART_TypeDef * LPUARTx, uint32_t Polarity)
Function description
Select Driver Enable Polarity.
Parameters
LPUARTx: LPUART Instance
Polarity: This parameter can be one of the following values:
LL_LPUART_DE_POLARITY_HIGH
LL_LPUART_DE_POLARITY_LOW
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DEP LL_LPUART_SetDESignalPolarity
LL_LPUART_GetDESignalPolarity
Function name
__STATIC_INLINE uint32_t LL_LPUART_GetDESignalPolarity
(USART_TypeDef * LPUARTx)
Function description
Return Driver Enable Polarity.
Parameters
LPUARTx: LPUART Instance
Return values
Returned: value can be one of the following values:
LL_LPUART_DE_POLARITY_HIGH
LL_LPUART_DE_POLARITY_LOW
Reference Manual to
LL API cross
reference:
CR3 DEP LL_LPUART_GetDESignalPolarity
LL_LPUART_IsActiveFlag_PE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_PE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Parity Error Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR PE LL_LPUART_IsActiveFlag_PE
LL_LPUART_IsActiveFlag_FE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_FE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Framing Error Flag is set or not.
Parameters
LPUARTx: LPUART Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR FE LL_LPUART_IsActiveFlag_FE
LL_LPUART_IsActiveFlag_NE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_NE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Noise detected Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR NE LL_LPUART_IsActiveFlag_NE
LL_LPUART_IsActiveFlag_ORE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_ORE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART OverRun Error Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ORE LL_LPUART_IsActiveFlag_ORE
LL_LPUART_IsActiveFlag_IDLE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_IDLE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART IDLE line detected Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR IDLE LL_LPUART_IsActiveFlag_IDLE
LL_LPUART_IsActiveFlag_RXNE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RXNE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Read Data Register Not Empty Flag is set or
not.
Parameters
LPUARTx: LPUART Instance
LL LPUART Generic Driver
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RXNE LL_LPUART_IsActiveFlag_RXNE
LL_LPUART_IsActiveFlag_TC
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TC
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Transmission Complete Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TC LL_LPUART_IsActiveFlag_TC
LL_LPUART_IsActiveFlag_TXE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TXE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Transmit Data Register Empty Flag is set or
not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TXE LL_LPUART_IsActiveFlag_TXE
LL_LPUART_IsActiveFlag_nCTS
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_nCTS
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART CTS interrupt Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CTSIF LL_LPUART_IsActiveFlag_nCTS
LL_LPUART_IsActiveFlag_CTS
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_CTS
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART CTS Flag is set or not.
Parameters
LPUARTx: LPUART Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CTS LL_LPUART_IsActiveFlag_CTS
LL_LPUART_IsActiveFlag_BUSY
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_BUSY
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Busy Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR BUSY LL_LPUART_IsActiveFlag_BUSY
LL_LPUART_IsActiveFlag_CM
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_CM
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Character Match Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CMF LL_LPUART_IsActiveFlag_CM
LL_LPUART_IsActiveFlag_SBK
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_SBK
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Send Break Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SBKF LL_LPUART_IsActiveFlag_SBK
LL_LPUART_IsActiveFlag_RWU
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RWU
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Receive Wake Up from mute mode Flag is
set or not.
Parameters
LPUARTx: LPUART Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RWU LL_LPUART_IsActiveFlag_RWU
LL_LPUART_IsActiveFlag_WKUP
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_WKUP
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Wake Up from stop mode Flag is set or not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR WUF LL_LPUART_IsActiveFlag_WKUP
LL_LPUART_IsActiveFlag_TEACK
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TEACK
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Transmit Enable Acknowledge Flag is set or
not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEACK LL_LPUART_IsActiveFlag_TEACK
LL_LPUART_IsActiveFlag_REACK
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_REACK
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Receive Enable Acknowledge Flag is set or
not.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR REACK LL_LPUART_IsActiveFlag_REACK
LL_LPUART_ClearFlag_PE
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_PE
(USART_TypeDef * LPUARTx)
Function description
Clear Parity Error Flag.
Parameters
LPUARTx: LPUART Instance
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Return values
None
Reference Manual to
LL API cross
reference:
ICR PECF LL_LPUART_ClearFlag_PE
LL_LPUART_ClearFlag_FE
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_FE
(USART_TypeDef * LPUARTx)
Function description
Clear Framing Error Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR FECF LL_LPUART_ClearFlag_FE
LL_LPUART_ClearFlag_NE
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_NE
(USART_TypeDef * LPUARTx)
Function description
Clear Noise detected Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR NCF LL_LPUART_ClearFlag_NE
LL_LPUART_ClearFlag_ORE
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_ORE
(USART_TypeDef * LPUARTx)
Function description
Clear OverRun Error Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR ORECF LL_LPUART_ClearFlag_ORE
LL_LPUART_ClearFlag_IDLE
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_IDLE
(USART_TypeDef * LPUARTx)
Function description
Clear IDLE line detected Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
LL LPUART Generic Driver
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Reference Manual to
LL API cross
reference:
ICR IDLECF LL_LPUART_ClearFlag_IDLE
LL_LPUART_ClearFlag_TC
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_TC
(USART_TypeDef * LPUARTx)
Function description
Clear Transmission Complete Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR TCCF LL_LPUART_ClearFlag_TC
LL_LPUART_ClearFlag_nCTS
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_nCTS
(USART_TypeDef * LPUARTx)
Function description
Clear CTS Interrupt Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR CTSCF LL_LPUART_ClearFlag_nCTS
LL_LPUART_ClearFlag_CM
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_CM
(USART_TypeDef * LPUARTx)
Function description
Clear Character Match Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR CMCF LL_LPUART_ClearFlag_CM
LL_LPUART_ClearFlag_WKUP
Function name
__STATIC_INLINE void LL_LPUART_ClearFlag_WKUP
(USART_TypeDef * LPUARTx)
Function description
Clear Wake Up from stop mode Flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
ICR WUCF LL_LPUART_ClearFlag_WKUP
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LL_LPUART_EnableIT_IDLE
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_IDLE
(USART_TypeDef * LPUARTx)
Function description
Enable IDLE Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_LPUART_EnableIT_IDLE
LL_LPUART_EnableIT_RXNE
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_RXNE
(USART_TypeDef * LPUARTx)
Function description
Enable RX Not Empty Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_LPUART_EnableIT_RXNE
LL_LPUART_EnableIT_TC
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_TC
(USART_TypeDef * LPUARTx)
Function description
Enable Transmission Complete Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_LPUART_EnableIT_TC
LL_LPUART_EnableIT_TXE
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_TXE
(USART_TypeDef * LPUARTx)
Function description
Enable TX Empty Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_LPUART_EnableIT_TXE
LL LPUART Generic Driver
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LL_LPUART_EnableIT_PE
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_PE
(USART_TypeDef * LPUARTx)
Function description
Enable Parity Error Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_LPUART_EnableIT_PE
LL_LPUART_EnableIT_CM
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_CM
(USART_TypeDef * LPUARTx)
Function description
Enable Character Match Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_LPUART_EnableIT_CM
LL_LPUART_EnableIT_ERROR
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_ERROR
(USART_TypeDef * LPUARTx)
Function description
Enable Error Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Notes
When set, Error Interrupt Enable Bit is enabling interrupt
generation in case of a framing error, overrun error or noise
flag (FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register).
0: Interrupt is inhibited1: An interrupt is generated when FE=1
or ORE=1 or NF=1 in the LPUARTx_ISR register.
Reference Manual to
LL API cross
reference:
CR3 EIE LL_LPUART_EnableIT_ERROR
LL_LPUART_EnableIT_CTS
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_CTS
(USART_TypeDef * LPUARTx)
Function description
Enable CTS Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
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Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_LPUART_EnableIT_CTS
LL_LPUART_EnableIT_WKUP
Function name
__STATIC_INLINE void LL_LPUART_EnableIT_WKUP
(USART_TypeDef * LPUARTx)
Function description
Enable Wake Up from Stop Mode Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_LPUART_EnableIT_WKUP
LL_LPUART_DisableIT_IDLE
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_IDLE
(USART_TypeDef * LPUARTx)
Function description
Disable IDLE Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_LPUART_DisableIT_IDLE
LL_LPUART_DisableIT_RXNE
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_RXNE
(USART_TypeDef * LPUARTx)
Function description
Disable RX Not Empty Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_LPUART_DisableIT_RXNE
LL_LPUART_DisableIT_TC
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_TC
(USART_TypeDef * LPUARTx)
Function description
Disable Transmission Complete Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
CR1 TCIE LL_LPUART_DisableIT_TC
LL LPUART Generic Driver
UM1749
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reference:
LL_LPUART_DisableIT_TXE
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_TXE
(USART_TypeDef * LPUARTx)
Function description
Disable TX Empty Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_LPUART_DisableIT_TXE
LL_LPUART_DisableIT_PE
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_PE
(USART_TypeDef * LPUARTx)
Function description
Disable Parity Error Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_LPUART_DisableIT_PE
LL_LPUART_DisableIT_CM
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_CM
(USART_TypeDef * LPUARTx)
Function description
Disable Character Match Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_LPUART_DisableIT_CM
LL_LPUART_DisableIT_ERROR
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_ERROR
(USART_TypeDef * LPUARTx)
Function description
Disable Error Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Notes
When set, Error Interrupt Enable Bit is enabling interrupt
generation in case of a framing error, overrun error or noise
flag (FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register).
0: Interrupt is inhibited1: An interrupt is generated when FE=1
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or ORE=1 or NF=1 in the LPUARTx_ISR register.
Reference Manual to
LL API cross
reference:
CR3 EIE LL_LPUART_DisableIT_ERROR
LL_LPUART_DisableIT_CTS
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_CTS
(USART_TypeDef * LPUARTx)
Function description
Disable CTS Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_LPUART_DisableIT_CTS
LL_LPUART_DisableIT_WKUP
Function name
__STATIC_INLINE void LL_LPUART_DisableIT_WKUP
(USART_TypeDef * LPUARTx)
Function description
Disable Wake Up from Stop Mode Interrupt.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_LPUART_DisableIT_WKUP
LL_LPUART_IsEnabledIT_IDLE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_IDLE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART IDLE Interrupt source is enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_LPUART_IsEnabledIT_IDLE
LL_LPUART_IsEnabledIT_RXNE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_RXNE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART RX Not Empty Interrupt is enabled or
disabled.
Parameters
LPUARTx: LPUART Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_LPUART_IsEnabledIT_RXNE
LL_LPUART_IsEnabledIT_TC
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TC
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Transmission Complete Interrupt is enabled
or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_LPUART_IsEnabledIT_TC
LL_LPUART_IsEnabledIT_TXE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TXE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART TX Empty Interrupt is enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_LPUART_IsEnabledIT_TXE
LL_LPUART_IsEnabledIT_PE
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_PE
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Parity Error Interrupt is enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_LPUART_IsEnabledIT_PE
LL_LPUART_IsEnabledIT_CM
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_CM
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Character Match Interrupt is enabled or
disabled.
Parameters
LPUARTx: LPUART Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_LPUART_IsEnabledIT_CM
LL_LPUART_IsEnabledIT_ERROR
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_ERROR
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Error Interrupt is enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 EIE LL_LPUART_IsEnabledIT_ERROR
LL_LPUART_IsEnabledIT_CTS
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_CTS
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART CTS Interrupt is enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_LPUART_IsEnabledIT_CTS
LL_LPUART_IsEnabledIT_WKUP
Function name
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_WKUP
(USART_TypeDef * LPUARTx)
Function description
Check if the LPUART Wake Up from Stop Mode Interrupt is
enabled or disabled.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_LPUART_IsEnabledIT_WKUP
LL_LPUART_EnableDMAReq_RX
Function name
__STATIC_INLINE void LL_LPUART_EnableDMAReq_RX
(USART_TypeDef * LPUARTx)
Function description
Enable DMA Mode for reception.
Parameters
LPUARTx: LPUART Instance
LL LPUART Generic Driver
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Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_LPUART_EnableDMAReq_RX
LL_LPUART_DisableDMAReq_RX
Function name
__STATIC_INLINE void LL_LPUART_DisableDMAReq_RX
(USART_TypeDef * LPUARTx)
Function description
Disable DMA Mode for reception.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_LPUART_DisableDMAReq_RX
LL_LPUART_IsEnabledDMAReq_RX
Function name
__STATIC_INLINE uint32_t
LL_LPUART_IsEnabledDMAReq_RX (USART_TypeDef *
LPUARTx)
Function description
Check if DMA Mode is enabled for reception.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_LPUART_IsEnabledDMAReq_RX
LL_LPUART_EnableDMAReq_TX
Function name
__STATIC_INLINE void LL_LPUART_EnableDMAReq_TX
(USART_TypeDef * LPUARTx)
Function description
Enable DMA Mode for transmission.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_LPUART_EnableDMAReq_TX
LL_LPUART_DisableDMAReq_TX
Function name
__STATIC_INLINE void LL_LPUART_DisableDMAReq_TX
(USART_TypeDef * LPUARTx)
Function description
Disable DMA Mode for transmission.
Parameters
LPUARTx: LPUART Instance
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Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_LPUART_DisableDMAReq_TX
LL_LPUART_IsEnabledDMAReq_TX
Function name
__STATIC_INLINE uint32_t
LL_LPUART_IsEnabledDMAReq_TX (USART_TypeDef *
LPUARTx)
Function description
Check if DMA Mode is enabled for transmission.
Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_LPUART_IsEnabledDMAReq_TX
LL_LPUART_EnableDMADeactOnRxErr
Function name
__STATIC_INLINE void
LL_LPUART_EnableDMADeactOnRxErr (USART_TypeDef *
LPUARTx)
Function description
Enable DMA Disabling on Reception Error.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_LPUART_EnableDMADeactOnRxErr
LL_LPUART_DisableDMADeactOnRxErr
Function name
__STATIC_INLINE void
LL_LPUART_DisableDMADeactOnRxErr (USART_TypeDef *
LPUARTx)
Function description
Disable DMA Disabling on Reception Error.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_LPUART_DisableDMADeactOnRxErr
LL_LPUART_IsEnabledDMADeactOnRxErr
Function name
__STATIC_INLINE uint32_t
LL_LPUART_IsEnabledDMADeactOnRxErr (USART_TypeDef *
LPUARTx)
Function description
Indicate if DMA Disabling on Reception Error is disabled.
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Parameters
LPUARTx: LPUART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_LPUART_IsEnabledDMADeactOnRxErr
LL_LPUART_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_LPUART_DMA_GetRegAddr
(USART_TypeDef * LPUARTx, uint32_t Direction)
Function description
Get the LPUART data register address used for DMA transfer.
Parameters
LPUARTx: LPUART Instance
Direction: This parameter can be one of the following
values:
LL_LPUART_DMA_REG_DATA_TRANSMIT
LL_LPUART_DMA_REG_DATA_RECEIVE
Return values
Address: of data register
Reference Manual to
LL API cross
reference:
RDR RDR LL_LPUART_DMA_GetRegAddr
TDR TDR LL_LPUART_DMA_GetRegAddr
LL_LPUART_ReceiveData8
Function name
__STATIC_INLINE uint8_t LL_LPUART_ReceiveData8
(USART_TypeDef * LPUARTx)
Function description
Read Receiver Data register (Receive Data value, 8 bits)
Parameters
LPUARTx: LPUART Instance
Return values
Time: Value between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
LL API cross
reference:
RDR RDR LL_LPUART_ReceiveData8
LL_LPUART_ReceiveData9
Function name
__STATIC_INLINE uint16_t LL_LPUART_ReceiveData9
(USART_TypeDef * LPUARTx)
Function description
Read Receiver Data register (Receive Data value, 9 bits)
Parameters
LPUARTx: LPUART Instance
Return values
Time: Value between Min_Data=0x00 and Max_Data=0x1FF
Reference Manual to
LL API cross
reference:
RDR RDR LL_LPUART_ReceiveData9
LL_LPUART_TransmitData8
Function name
__STATIC_INLINE void LL_LPUART_TransmitData8
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(USART_TypeDef * LPUARTx, uint8_t Value)
Function description
Write in Transmitter Data Register (Transmit Data value, 8 bits)
Parameters
LPUARTx: LPUART Instance
Value: between Min_Data=0x00 and Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
TDR TDR LL_LPUART_TransmitData8
LL_LPUART_TransmitData9
Function name
__STATIC_INLINE void LL_LPUART_TransmitData9
(USART_TypeDef * LPUARTx, uint16_t Value)
Function description
Write in Transmitter Data Register (Transmit Data value, 9 bits)
Parameters
LPUARTx: LPUART Instance
Value: between Min_Data=0x00 and Max_Data=0x1FF
Return values
None
Reference Manual to
LL API cross
reference:
TDR TDR LL_LPUART_TransmitData9
LL_LPUART_RequestBreakSending
Function name
__STATIC_INLINE void LL_LPUART_RequestBreakSending
(USART_TypeDef * LPUARTx)
Function description
Request Break sending.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
RQR SBKRQ LL_LPUART_RequestBreakSending
LL_LPUART_RequestEnterMuteMode
Function name
__STATIC_INLINE void LL_LPUART_RequestEnterMuteMode
(USART_TypeDef * LPUARTx)
Function description
Put LPUART in mute mode and set the RWU flag.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
RQR MMRQ LL_LPUART_RequestEnterMuteMode
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LL_LPUART_RequestRxDataFlush
Function name
__STATIC_INLINE void LL_LPUART_RequestRxDataFlush
(USART_TypeDef * LPUARTx)
Function description
Request a Receive Data flush.
Parameters
LPUARTx: LPUART Instance
Return values
None
Reference Manual to
LL API cross
reference:
RQR RXFRQ LL_LPUART_RequestRxDataFlush
LL_LPUART_DeInit
Function name
ErrorStatus LL_LPUART_DeInit (USART_TypeDef * LPUARTx)
Function description
De-initialize LPUART registers (Registers restored to their default
values).
Parameters
LPUARTx: LPUART Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: LPUART registers are de-initialized
ERROR: not applicable
LL_LPUART_Init
Function name
ErrorStatus LL_LPUART_Init (USART_TypeDef * LPUARTx,
LL_LPUART_InitTypeDef * LPUART_InitStruct)
Function description
Initialize LPUART registers according to the specified parameters
in LPUART_InitStruct.
Parameters
LPUARTx: LPUART Instance
LPUART_InitStruct: pointer to a LL_LPUART_InitTypeDef
structure that contains the configuration information for the
specified LPUART peripheral.
Return values
An: ErrorStatus enumeration value:
SUCCESS: LPUART registers are initialized according to
LPUART_InitStruct content
ERROR: Problem occurred during LPUART Registers
initialization
Notes
As some bits in LPUART configuration registers can only be
written when the LPUART is disabled (USART_CR1_UE bit
=0), LPUART IP should be in disabled state prior calling this
function. Otherwise, ERROR result will be returned.
Baud rate value stored in LPUART_InitStruct BaudRate field,
should be valid (different from 0).
LL_LPUART_StructInit
Function name
void LL_LPUART_StructInit (LL_LPUART_InitTypeDef *
LPUART_InitStruct)
Function description
Set each LL_LPUART_InitTypeDef field to default value.
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Parameters
LPUART_InitStruct: pointer to a LL_LPUART_InitTypeDef
structure whose fields will be set to default values.
Return values
None
67.3 LPUART Firmware driver defines
67.3.1 LPUART
Address Length Detection
LL_LPUART_ADDRESS_DETECT_4B
4-bit address detection method selected
LL_LPUART_ADDRESS_DETECT_7B
7-bit address detection (in 8-bit data mode)
method selected
Binary Data Inversion
LL_LPUART_BINARY_LOGIC_POSITIVE
Logical data from the data register are
send/received in positive/direct logic. (1=H,
0=L)
LL_LPUART_BINARY_LOGIC_NEGATIVE
Logical data from the data register are
send/received in negative/inverse logic. (1=L,
0=H). The parity bit is also inverted.
Bit Order
LL_LPUART_BITORDER_LSBFIRST
data is transmitted/received with data bit 0 first,
following the start bit
LL_LPUART_BITORDER_MSBFIRST
data is transmitted/received with the MSB first,
following the start bit
Clear Flags Defines
LL_LPUART_ICR_PECF
Parity error flag
LL_LPUART_ICR_FECF
Framing error flag
LL_LPUART_ICR_NCF
Noise detected flag
LL_LPUART_ICR_ORECF
Overrun error flag
LL_LPUART_ICR_IDLECF
Idle line detected flag
LL_LPUART_ICR_TCCF
Transmission complete flag
LL_LPUART_ICR_CTSCF
CTS flag
LL_LPUART_ICR_CMCF
Character match flag
LL_LPUART_ICR_WUCF
Wakeup from Stop mode flag
Datawidth
LL_LPUART_DATAWIDTH_7B
7 bits word length : Start bit, 7 data bits, n stop bits
LL_LPUART_DATAWIDTH_8B
8 bits word length : Start bit, 8 data bits, n stop bits
LL_LPUART_DATAWIDTH_9B
9 bits word length : Start bit, 9 data bits, n stop bits
Driver Enable Polarity
LL_LPUART_DE_POLARITY_HIGH
DE signal is active high
LL_LPUART_DE_POLARITY_LOW
DE signal is active low
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Direction
LL_LPUART_DIRECTION_NONE
Transmitter and Receiver are disabled
LL_LPUART_DIRECTION_RX
Transmitter is disabled and Receiver is enabled
LL_LPUART_DIRECTION_TX
Transmitter is enabled and Receiver is disabled
LL_LPUART_DIRECTION_TX_RX
Transmitter and Receiver are enabled
DMA Register Data
LL_LPUART_DMA_REG_DATA_TRANSMIT
Get address of data register used for
transmission
LL_LPUART_DMA_REG_DATA_RECEIVE
Get address of data register used for
reception
Get Flags Defines
LL_LPUART_ISR_PE
Parity error flag
LL_LPUART_ISR_FE
Framing error flag
LL_LPUART_ISR_NE
Noise detected flag
LL_LPUART_ISR_ORE
Overrun error flag
LL_LPUART_ISR_IDLE
Idle line detected flag
LL_LPUART_ISR_RXNE
Read data register not empty flag
LL_LPUART_ISR_TC
Transmission complete flag
LL_LPUART_ISR_TXE
Transmit data register empty flag
LL_LPUART_ISR_CTSIF
CTS interrupt flag
LL_LPUART_ISR_CTS
CTS flag
LL_LPUART_ISR_BUSY
Busy flag
LL_LPUART_ISR_CMF
Character match flag
LL_LPUART_ISR_SBKF
Send break flag
LL_LPUART_ISR_RWU
Receiver wakeup from Mute mode flag
LL_LPUART_ISR_WUF
Wakeup from Stop mode flag
LL_LPUART_ISR_TEACK
Transmit enable acknowledge flag
LL_LPUART_ISR_REACK
Receive enable acknowledge flag
Hardware Control
LL_LPUART_HWCONTROL_NONE
CTS and RTS hardware flow control disabled
LL_LPUART_HWCONTROL_RTS
RTS output enabled, data is only requested
when there is space in the receive buffer
LL_LPUART_HWCONTROL_CTS
CTS mode enabled, data is only transmitted
when the nCTS input is asserted (tied to 0)
LL_LPUART_HWCONTROL_RTS_CTS
CTS and RTS hardware flow control enabled
IT Defines
LL_LPUART_CR1_IDLEIE
IDLE interrupt enable
LL_LPUART_CR1_RXNEIE
Read data register not empty interrupt enable
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LL_LPUART_CR1_TCIE
Transmission complete interrupt enable
LL_LPUART_CR1_TXEIE
Transmit data register empty interrupt enable
LL_LPUART_CR1_PEIE
Parity error
LL_LPUART_CR1_CMIE
Character match interrupt enable
LL_LPUART_CR3_EIE
Error interrupt enable
LL_LPUART_CR3_CTSIE
CTS interrupt enable
LL_LPUART_CR3_WUFIE
Wakeup from Stop mode interrupt enable
Parity Control
LL_LPUART_PARITY_NONE
Parity control disabled
LL_LPUART_PARITY_EVEN
Parity control enabled and Even Parity is selected
LL_LPUART_PARITY_ODD
Parity control enabled and Odd Parity is selected
RX Pin Active Level Inversion
LL_LPUART_RXPIN_LEVEL_STANDARD
RX pin signal works using the standard logic
levels
LL_LPUART_RXPIN_LEVEL_INVERTED
RX pin signal values are inverted.
Stop Bits
LL_LPUART_STOPBITS_1
1 stop bit
LL_LPUART_STOPBITS_2
2 stop bits
TX Pin Active Level Inversion
LL_LPUART_TXPIN_LEVEL_STANDARD
TX pin signal works using the standard logic
levels
LL_LPUART_TXPIN_LEVEL_INVERTED
TX pin signal values are inverted.
TX RX Pins Swap
LL_LPUART_TXRX_STANDARD
TX/RX pins are used as defined in standard pinout
LL_LPUART_TXRX_SWAPPED
TX and RX pins functions are swapped.
Wakeup
LL_LPUART_WAKEUP_IDLELINE
LPUART wake up from Mute mode on Idle
Line
LL_LPUART_WAKEUP_ADDRESSMARK
LPUART wake up from Mute mode on
Address Mark
Wakeup Activation
LL_LPUART_WAKEUP_ON_ADDRESS
Wake up active on address match
LL_LPUART_WAKEUP_ON_STARTBIT
Wake up active on Start bit detection
LL_LPUART_WAKEUP_ON_RXNE
Wake up active on RXNE
Helper Macros
__LL_LPUART_DIV
Description:
Compute LPUARTDIV value according to Peripheral Clock
and expected Baud Rate (20-bit value of LPUARTDIV is
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returned)
Parameters:
__PERIPHCLK__: Peripheral Clock frequency used for
LPUART Instance
__BAUDRATE__: Baud Rate value to achieve
Return value:
LPUARTDIV: value to be used for BRR register filling
Common Write and read registers Macros
LL_LPUART_WriteReg
Description:
Write a value in LPUART register.
Parameters:
__INSTANCE__: LPUART Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_LPUART_ReadReg
Description:
Read a value in LPUART register.
Parameters:
__INSTANCE__: LPUART Instance
__REG__: Register to be read
Return value:
Register: value
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68 LL PWR Generic Driver
68.1 PWR Firmware driver API description
68.1.1 Detailed description of functions
LL_PWR_EnableLowPowerRunMode
Function name
__STATIC_INLINE void LL_PWR_EnableLowPowerRunMode
(void )
Function description
Switch the regulator from main mode to low-power mode.
Return values
None
Notes
Remind to set the regulator to low power before enabling
LowPower run mode (bit
LL_PWR_REGU_LPMODES_LOW_POWER).
Reference Manual to
LL API cross
reference:
CR LPRUN LL_PWR_EnableLowPowerRunMode
LL_PWR_DisableLowPowerRunMode
Function name
__STATIC_INLINE void LL_PWR_DisableLowPowerRunMode
(void )
Function description
Switch the regulator from low-power mode to main mode.
Return values
None
Reference Manual to
LL API cross
reference:
CR LPRUN LL_PWR_DisableLowPowerRunMode
LL_PWR_IsEnabledLowPowerRunMode
Function name
__STATIC_INLINE uint32_t
LL_PWR_IsEnabledLowPowerRunMode (void )
Function description
Check if the regulator is in low-power mode.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR LPRUN LL_PWR_IsEnabledLowPowerRunMode
LL_PWR_EnterLowPowerRunMode
Functio
n name
__STATIC_INLINE void LL_PWR_EnterLowPowerRunMode (void )
Functio
n
descrip
Set voltage regulator to low-power and switch from run main mode to run low-
power mode.
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tion
Return
values
None
Notes
This "high level" function is introduced to provide functional compatibility
with other families. Notice that the two registers have to be written
sequentially, so this function is not atomic. To assure atomicity you can call
separately the following functions:
LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_LOW_POWER);
LL_PWR_EnableLowPowerRunMode();
Refere
nce
Manual
to LL
API
cross
referen
ce:
CR LPSDSR LL_PWR_EnterLowPowerRunMode
CR LPRUN LL_PWR_EnterLowPowerRunMode
LL_PWR_ExitLowPowerRunMode
Functio
n name
__STATIC_INLINE void LL_PWR_ExitLowPowerRunMode (void )
Functio
n
descript
ion
Set voltage regulator to main and switch from run main mode to low-power
mode.
Return
values
None
Notes
This "high level" function is introduced to provide functional compatibility
with other families. Notice that the two registers have to be written
sequentially, so this function is not atomic. To assure atomicity you can call
separately the following functions:
LL_PWR_DisableLowPowerRunMode();LL_PWR_SetRegulModeLP(LL_P
WR_REGU_LPMODES_MAIN);
Referen
ce
Manual
to LL
API
cross
referen
ce:
CR LPSDSR LL_PWR_ExitLowPowerRunMode
CR LPRUN LL_PWR_ExitLowPowerRunMode
LL_PWR_SetRegulVoltageScaling
Function name
__STATIC_INLINE void LL_PWR_SetRegulVoltageScaling
(uint32_t VoltageScaling)
Function description
Set the main internal regulator output voltage.
Parameters
VoltageScaling: This parameter can be one of the following
values:
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LL_PWR_REGU_VOLTAGE_SCALE1
LL_PWR_REGU_VOLTAGE_SCALE2
LL_PWR_REGU_VOLTAGE_SCALE3
Return values
None
Reference Manual to
LL API cross
reference:
CR VOS LL_PWR_SetRegulVoltageScaling
LL_PWR_GetRegulVoltageScaling
Function name
__STATIC_INLINE uint32_t LL_PWR_GetRegulVoltageScaling
(void )
Function description
Get the main internal regulator output voltage.
Return values
Returned: value can be one of the following values:
LL_PWR_REGU_VOLTAGE_SCALE1
LL_PWR_REGU_VOLTAGE_SCALE2
LL_PWR_REGU_VOLTAGE_SCALE3
Reference Manual to
LL API cross
reference:
CR VOS LL_PWR_GetRegulVoltageScaling
LL_PWR_EnableBkUpAccess
Function name
__STATIC_INLINE void LL_PWR_EnableBkUpAccess (void )
Function description
Enable access to the backup domain.
Return values
None
Reference Manual to
LL API cross
reference:
CR DBP LL_PWR_EnableBkUpAccess
LL_PWR_DisableBkUpAccess
Function name
__STATIC_INLINE void LL_PWR_DisableBkUpAccess (void )
Function description
Disable access to the backup domain.
Return values
None
Reference Manual to
LL API cross
reference:
CR DBP LL_PWR_DisableBkUpAccess
LL_PWR_IsEnabledBkUpAccess
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledBkUpAccess
(void )
Function description
Check if the backup domain is enabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
CR DBP LL_PWR_IsEnabledBkUpAccess
LL PWR Generic Driver
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LL_PWR_SetRegulModeLP
Function name
__STATIC_INLINE void LL_PWR_SetRegulModeLP (uint32_t
RegulMode)
Function description
Set voltage regulator mode during low power modes.
Parameters
RegulMode: This parameter can be one of the following
values:
LL_PWR_REGU_LPMODES_MAIN
LL_PWR_REGU_LPMODES_LOW_POWER
Return values
None
Reference Manual to
LL API cross
reference:
CR LPSDSR LL_PWR_SetRegulModeLP
LL_PWR_GetRegulModeLP
Function name
__STATIC_INLINE uint32_t LL_PWR_GetRegulModeLP (void )
Function description
Get voltage regulator mode during low power modes.
Return values
Returned: value can be one of the following values:
LL_PWR_REGU_LPMODES_MAIN
LL_PWR_REGU_LPMODES_LOW_POWER
Reference Manual to
LL API cross
reference:
CR LPSDSR LL_PWR_GetRegulModeLP
LL_PWR_SetPowerMode
Function name
__STATIC_INLINE void LL_PWR_SetPowerMode (uint32_t
PDMode)
Function description
Set power down mode when CPU enters deepsleep.
Parameters
PDMode: This parameter can be one of the following values:
LL_PWR_MODE_STOP
LL_PWR_MODE_STANDBY
Return values
None
Notes
Set the regulator to low power (bit
LL_PWR_REGU_LPMODES_LOW_POWER) before setting
MODE_STOP. If the regulator remains in "main mode", it
consumes more power without providing any additional
feature. In MODE_STANDBY the regulator is automatically
off.
Reference Manual to
LL API cross
reference:
CR PDDS LL_PWR_SetPowerMode
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LL_PWR_GetPowerMode
Function name
__STATIC_INLINE uint32_t LL_PWR_GetPowerMode (void )
Function description
Get power down mode when CPU enters deepsleep.
Return values
Returned: value can be one of the following values:
LL_PWR_MODE_STOP
LL_PWR_MODE_STANDBY
Reference Manual to
LL API cross
reference:
CR PDDS LL_PWR_GetPowerMode
LL_PWR_SetPVDLevel
Function name
__STATIC_INLINE void LL_PWR_SetPVDLevel (uint32_t
PVDLevel)
Function description
Configure the voltage threshold detected by the Power Voltage
Detector.
Parameters
PVDLevel: This parameter can be one of the following
values:
LL_PWR_PVDLEVEL_0
LL_PWR_PVDLEVEL_1
LL_PWR_PVDLEVEL_2
LL_PWR_PVDLEVEL_3
LL_PWR_PVDLEVEL_4
LL_PWR_PVDLEVEL_5
LL_PWR_PVDLEVEL_6
LL_PWR_PVDLEVEL_7
Return values
None
Reference Manual to
LL API cross
reference:
CR PLS LL_PWR_SetPVDLevel
LL_PWR_GetPVDLevel
Function name
__STATIC_INLINE uint32_t LL_PWR_GetPVDLevel (void )
Function description
Get the voltage threshold detection.
Return values
Returned: value can be one of the following values:
LL_PWR_PVDLEVEL_0
LL_PWR_PVDLEVEL_1
LL_PWR_PVDLEVEL_2
LL_PWR_PVDLEVEL_3
LL_PWR_PVDLEVEL_4
LL_PWR_PVDLEVEL_5
LL_PWR_PVDLEVEL_6
LL_PWR_PVDLEVEL_7
Reference Manual to
LL API cross
reference:
CR PLS LL_PWR_GetPVDLevel
LL PWR Generic Driver
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LL_PWR_EnablePVD
Function name
__STATIC_INLINE void LL_PWR_EnablePVD (void )
Function description
Enable Power Voltage Detector.
Return values
None
Reference Manual to
LL API cross
reference:
CR PVDE LL_PWR_EnablePVD
LL_PWR_DisablePVD
Function name
__STATIC_INLINE void LL_PWR_DisablePVD (void )
Function description
Disable Power Voltage Detector.
Return values
None
Reference Manual to
LL API cross
reference:
CR PVDE LL_PWR_DisablePVD
LL_PWR_IsEnabledPVD
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledPVD (void )
Function description
Check if Power Voltage Detector is enabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR PVDE LL_PWR_IsEnabledPVD
LL_PWR_EnableWakeUpPin
Function name
__STATIC_INLINE void LL_PWR_EnableWakeUpPin (uint32_t
WakeUpPin)
Function description
Enable the WakeUp PINx functionality.
Parameters
WakeUpPin: This parameter can be one of the following
values: (*) not available on all devices
LL_PWR_WAKEUP_PIN1
LL_PWR_WAKEUP_PIN2
LL_PWR_WAKEUP_PIN3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
CSR EWUP1 LL_PWR_EnableWakeUpPin
CSR EWUP2 LL_PWR_EnableWakeUpPin
CSR EWUP3 LL_PWR_EnableWakeUpPin
LL_PWR_DisableWakeUpPin
Function name
__STATIC_INLINE void LL_PWR_DisableWakeUpPin (uint32_t
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WakeUpPin)
Function description
Disable the WakeUp PINx functionality.
Parameters
WakeUpPin: This parameter can be one of the following
values: (*) not available on all devices
LL_PWR_WAKEUP_PIN1
LL_PWR_WAKEUP_PIN2
LL_PWR_WAKEUP_PIN3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
CSR EWUP1 LL_PWR_DisableWakeUpPin
CSR EWUP2 LL_PWR_DisableWakeUpPin
CSR EWUP3 LL_PWR_DisableWakeUpPin
LL_PWR_IsEnabledWakeUpPin
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledWakeUpPin
(uint32_t WakeUpPin)
Function description
Check if the WakeUp PINx functionality is enabled.
Parameters
WakeUpPin: This parameter can be one of the following
values: (*) not available on all devices
LL_PWR_WAKEUP_PIN1
LL_PWR_WAKEUP_PIN2
LL_PWR_WAKEUP_PIN3 (*)
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR EWUP1 LL_PWR_IsEnabledWakeUpPin
CSR EWUP2 LL_PWR_IsEnabledWakeUpPin
CSR EWUP3 LL_PWR_IsEnabledWakeUpPin
LL_PWR_EnableUltraLowPower
Function name
__STATIC_INLINE void LL_PWR_EnableUltraLowPower (void
)
Function description
Enable ultra low-power mode by enabling VREFINT switch off in
low-power modes.
Return values
None
Reference Manual to
LL API cross
reference:
CR ULP LL_PWR_EnableUltraLowPower
LL_PWR_DisableUltraLowPower
Function name
__STATIC_INLINE void LL_PWR_DisableUltraLowPower (void
)
Function description
Disable ultra low-power mode by disabling VREFINT switch off in
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low-power modes.
Return values
None
Reference Manual to
LL API cross
reference:
CR ULP LL_PWR_DisableUltraLowPower
LL_PWR_IsEnabledUltraLowPower
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledUltraLowPower
(void )
Function description
Check if ultra low-power mode is enabled by checking if VREFINT
switch off in low-power modes is enabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ULP LL_PWR_IsEnabledUltraLowPower
LL_PWR_EnableFastWakeUp
Function name
__STATIC_INLINE void LL_PWR_EnableFastWakeUp (void )
Function description
Enable fast wakeup by ignoring VREFINT startup time when
exiting from low-power mode.
Return values
None
Notes
Works in conjunction with ultra low power mode.
Reference Manual to
LL API cross
reference:
CR FWU LL_PWR_EnableFastWakeUp
LL_PWR_DisableFastWakeUp
Function name
__STATIC_INLINE void LL_PWR_DisableFastWakeUp (void )
Function description
Disable fast wakeup by waiting VREFINT startup time when exiting
from low-power mode.
Return values
None
Notes
Works in conjunction with ultra low power mode.
Reference Manual to
LL API cross
reference:
CR FWU LL_PWR_DisableFastWakeUp
LL_PWR_IsEnabledFastWakeUp
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledFastWakeUp
(void )
Function description
Check if fast wakeup is enabled by checking if VREFINT startup
time when exiting from low-power mode is ignored.
Return values
State: of bit (1 or 0).
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LL PWR Generic Driver
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Reference Manual to
LL API cross
reference:
CR FWU LL_PWR_IsEnabledFastWakeUp
LL_PWR_EnableNVMKeptOff
Function name
__STATIC_INLINE void LL_PWR_EnableNVMKeptOff (void )
Function description
Enable non-volatile memory (Flash and EEPROM) keeping off
feature when exiting from low-power mode.
Return values
None
Notes
When enabled, after entering low-power mode (Stop or
Standby only), if RUN_PD of FLASH_ACR register is also set,
the Flash memory will not be woken up when exiting from
deepsleep mode. When enabled, the EEPROM will not be
woken up when exiting from low-power mode (if the bit
RUN_PD is set)
Reference Manual to
LL API cross
reference:
CR DS_EE_KOFF LL_PWR_EnableNVMKeptOff
LL_PWR_DisableNVMKeptOff
Function name
__STATIC_INLINE void LL_PWR_DisableNVMKeptOff (void )
Function description
Disable non-volatile memory (Flash and EEPROM) keeping off
feature when exiting from low-power mode.
Return values
None
Notes
When disabled, Flash memory is woken up when exiting from
deepsleep mode even if the bit RUN_PD is set
Reference Manual to
LL API cross
reference:
CR DS_EE_KOFF LL_PWR_DisableNVMKeptOff
LL_PWR_IsEnabledNVMKeptOff
Function name
__STATIC_INLINE uint32_t LL_PWR_IsEnabledNVMKeptOff
(void )
Function description
Check if non-volatile memory (Flash and EEPROM) keeping off
feature when exiting from low-power mode is enabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR DS_EE_KOFF LL_PWR_IsEnabledNVMKeptOff
LL_PWR_IsActiveFlag_WU
Function name
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_WU (void )
Function description
Get Wake-up Flag.
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Return values
State: of bit (1 or 0).
Reference Manual to
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reference:
CSR WUF LL_PWR_IsActiveFlag_WU
LL_PWR_IsActiveFlag_SB
Function name
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_SB (void )
Function description
Get Standby Flag.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR SBF LL_PWR_IsActiveFlag_SB
LL_PWR_IsActiveFlag_PVDO
Function name
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_PVDO (void
)
Function description
Indicate whether VDD voltage is below the selected PVD
threshold.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR PVDO LL_PWR_IsActiveFlag_PVDO
LL_PWR_IsActiveFlag_VREFINTRDY
Function name
__STATIC_INLINE uint32_t
LL_PWR_IsActiveFlag_VREFINTRDY (void )
Function description
Get Internal Reference VrefInt Flag.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR VREFINTRDYF LL_PWR_IsActiveFlag_VREFINTRDY
LL_PWR_IsActiveFlag_VOSF
Function name
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_VOSF (void
)
Function description
Indicate whether the regulator is ready in the selected voltage
range or if its output voltage is still changing to the required
voltage level.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR VOSF LL_PWR_IsActiveFlag_VOSF
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LL_PWR_IsActiveFlag_REGLPF
Function name
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_REGLPF
(void )
Function description
Indicate whether the regulator is ready in main mode or is in low-
power mode.
Return values
State: of bit (1 or 0).
Notes
Take care, return value "0" means the regulator is ready.
Return value "1" means the output voltage range is still
changing.
Reference Manual to
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reference:
CSR REGLPF LL_PWR_IsActiveFlag_REGLPF
LL_PWR_ClearFlag_SB
Function name
__STATIC_INLINE void LL_PWR_ClearFlag_SB (void )
Function description
Clear Standby Flag.
Return values
None
Reference Manual to
LL API cross
reference:
CR CSBF LL_PWR_ClearFlag_SB
LL_PWR_ClearFlag_WU
Function name
__STATIC_INLINE void LL_PWR_ClearFlag_WU (void )
Function description
Clear Wake-up Flags.
Return values
None
Reference Manual to
LL API cross
reference:
CR CWUF LL_PWR_ClearFlag_WU
LL_PWR_DeInit
Function name
ErrorStatus LL_PWR_DeInit (void )
Function description
De-initialize the PWR registers to their default reset values.
Return values
An: ErrorStatus enumeration value:
SUCCESS: PWR registers are de-initialized
ERROR: not applicable
68.2 PWR Firmware driver defines
68.2.1 PWR
Clear Flags Defines
LL_PWR_CR_CSBF
Clear standby flag
LL_PWR_CR_CWUF
Clear wakeup flag
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Get Flags Defines
LL_PWR_CSR_WUF
Wakeup flag
LL_PWR_CSR_SBF
Standby flag
LL_PWR_CSR_PVDO
Power voltage detector output flag
LL_PWR_CSR_VREFINTRDYF
VREFINT ready flag
LL_PWR_CSR_VOS
Voltage scaling select flag
LL_PWR_CSR_REGLPF
Regulator low power flag
LL_PWR_CSR_EWUP1
Enable WKUP pin 1
LL_PWR_CSR_EWUP2
Enable WKUP pin 2
LL_PWR_CSR_EWUP3
Enable WKUP pin 3
Mode Power
LL_PWR_MODE_STOP
Enter Stop mode when the CPU enters deepsleep
LL_PWR_MODE_STANDBY
Enter Standby mode when the CPU enters deepsleep
Power Voltage Detector Level
LL_PWR_PVDLEVEL_0
Voltage threshold detected by PVD 1.9 V
LL_PWR_PVDLEVEL_1
Voltage threshold detected by PVD 2.1 V
LL_PWR_PVDLEVEL_2
Voltage threshold detected by PVD 2.3 V
LL_PWR_PVDLEVEL_3
Voltage threshold detected by PVD 2.5 V
LL_PWR_PVDLEVEL_4
Voltage threshold detected by PVD 2.7 V
LL_PWR_PVDLEVEL_5
Voltage threshold detected by PVD 2.9 V
LL_PWR_PVDLEVEL_6
Voltage threshold detected by PVD 3.1 V
LL_PWR_PVDLEVEL_7
External input analog voltage (Compare internally to VREFINT)
Regulator Mode In Low Power Modes
LL_PWR_REGU_LPMODES_MAIN
Voltage regulator in main mode during
deepsleep/sleep/low-power run mode
LL_PWR_REGU_LPMODES_LOW_POWER
Voltage regulator in low-power mode
during deepsleep/sleep/low-power run
mode
Regulator Voltage
LL_PWR_REGU_VOLTAGE_SCALE1
1.8V (range 1)
LL_PWR_REGU_VOLTAGE_SCALE2
1.5V (range 2)
LL_PWR_REGU_VOLTAGE_SCALE3
1.2V (range 3)
Wakeup Pins
LL_PWR_WAKEUP_PIN1
WKUP pin 1 : PA0
LL_PWR_WAKEUP_PIN2
WKUP pin 2 : PC13
LL_PWR_WAKEUP_PIN3
WKUP pin 3 : PE6 or PA2 according to device
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Common write and read registers Macros
LL_PWR_WriteReg
Description:
Write a value in PWR register.
Parameters:
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_PWR_ReadReg
Description:
Read a value in PWR register.
Parameters:
__REG__: Register to be read
Return value:
Register: value
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69 LL RCC Generic Driver
69.1 RCC Firmware driver registers structures
69.1.1 LL_RCC_ClocksTypeDef
Data Fields
uint32_t SYSCLK_Frequency
uint32_t HCLK_Frequency
uint32_t PCLK1_Frequency
uint32_t PCLK2_Frequency
Field Documentation
uint32_t LL_RCC_ClocksTypeDef::SYSCLK_Frequency
SYSCLK clock frequency
uint32_t LL_RCC_ClocksTypeDef::HCLK_Frequency
HCLK clock frequency
uint32_t LL_RCC_ClocksTypeDef::PCLK1_Frequency
PCLK1 clock frequency
uint32_t LL_RCC_ClocksTypeDef::PCLK2_Frequency
PCLK2 clock frequency
69.2 RCC Firmware driver API description
69.2.1 Detailed description of functions
LL_RCC_HSE_EnableCSS
Function name
__STATIC_INLINE void LL_RCC_HSE_EnableCSS (void )
Function description
Enable the Clock Security System.
Return values
None
Reference Manual to
LL API cross
reference:
CR CSSHSEON LL_RCC_HSE_EnableCSS
LL_RCC_HSE_EnableBypass
Function name
__STATIC_INLINE void LL_RCC_HSE_EnableBypass (void )
Function description
Enable HSE external oscillator (HSE Bypass)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSEBYP LL_RCC_HSE_EnableBypass
LL_RCC_HSE_DisableBypass
Function name
__STATIC_INLINE void LL_RCC_HSE_DisableBypass (void )
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Function description
Disable HSE external oscillator (HSE Bypass)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSEBYP LL_RCC_HSE_DisableBypass
LL_RCC_HSE_Enable
Function name
__STATIC_INLINE void LL_RCC_HSE_Enable (void )
Function description
Enable HSE crystal oscillator (HSE ON)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSEON LL_RCC_HSE_Enable
LL_RCC_HSE_Disable
Function name
__STATIC_INLINE void LL_RCC_HSE_Disable (void )
Function description
Disable HSE crystal oscillator (HSE ON)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSEON LL_RCC_HSE_Disable
LL_RCC_HSE_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_HSE_IsReady (void )
Function description
Check if HSE oscillator Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR HSERDY LL_RCC_HSE_IsReady
LL_RCC_SetRTC_HSEPrescaler
Function name
__STATIC_INLINE void LL_RCC_SetRTC_HSEPrescaler
(uint32_t Div)
Function description
Configure the RTC prescaler (divider)
Parameters
Div: This parameter can be one of the following values:
LL_RCC_RTC_HSE_DIV_2
LL_RCC_RTC_HSE_DIV_4
LL_RCC_RTC_HSE_DIV_8
LL_RCC_RTC_HSE_DIV_16
Return values
None
Reference Manual to
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CR RTCPRE LL_RCC_SetRTC_HSEPrescaler
LL RCC Generic Driver
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LL_RCC_GetRTC_HSEPrescaler
Function name
__STATIC_INLINE uint32_t LL_RCC_GetRTC_HSEPrescaler
(void )
Function description
Get the RTC divider (prescaler)
Return values
Returned: value can be one of the following values:
LL_RCC_RTC_HSE_DIV_2
LL_RCC_RTC_HSE_DIV_4
LL_RCC_RTC_HSE_DIV_8
LL_RCC_RTC_HSE_DIV_16
Reference Manual to
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reference:
CR RTCPRE LL_RCC_GetRTC_HSEPrescaler
LL_RCC_HSI_Enable
Function name
__STATIC_INLINE void LL_RCC_HSI_Enable (void )
Function description
Enable HSI oscillator.
Return values
None
Reference Manual to
LL API cross
reference:
CR HSION LL_RCC_HSI_Enable
LL_RCC_HSI_Disable
Function name
__STATIC_INLINE void LL_RCC_HSI_Disable (void )
Function description
Disable HSI oscillator.
Return values
None
Reference Manual to
LL API cross
reference:
CR HSION LL_RCC_HSI_Disable
LL_RCC_HSI_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI_IsReady (void )
Function description
Check if HSI clock is ready.
Return values
State: of bit (1 or 0).
Reference Manual to
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reference:
CR HSIRDY LL_RCC_HSI_IsReady
UM1749
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LL_RCC_HSI_EnableInStopMode
Function name
__STATIC_INLINE void LL_RCC_HSI_EnableInStopMode (void
)
Function description
Enable HSI even in stop mode.
Return values
None
Notes
HSI oscillator is forced ON even in Stop mode
Reference Manual to
LL API cross
reference:
CR HSIKERON LL_RCC_HSI_EnableInStopMode
LL_RCC_HSI_DisableInStopMode
Function name
__STATIC_INLINE void LL_RCC_HSI_DisableInStopMode
(void )
Function description
Disable HSI in stop mode.
Return values
None
Reference Manual to
LL API cross
reference:
CR HSIKERON LL_RCC_HSI_DisableInStopMode
LL_RCC_HSI_EnableDivider
Function name
__STATIC_INLINE void LL_RCC_HSI_EnableDivider (void )
Function description
Enable HSI Divider (it divides by 4)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSIDIVEN LL_RCC_HSI_EnableDivider
LL_RCC_HSI_DisableDivider
Function name
__STATIC_INLINE void LL_RCC_HSI_DisableDivider (void )
Function description
Disable HSI Divider (it divides by 4)
Return values
None
Reference Manual to
LL API cross
reference:
CR HSIDIVEN LL_RCC_HSI_DisableDivider
LL_RCC_HSI_EnableOutput
Function name
__STATIC_INLINE void LL_RCC_HSI_EnableOutput (void )
Function description
Enable HSI Output.
Return values
None
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Reference Manual to
LL API cross
reference:
CR HSIOUTEN LL_RCC_HSI_EnableOutput
LL_RCC_HSI_DisableOutput
Function name
__STATIC_INLINE void LL_RCC_HSI_DisableOutput (void )
Function description
Disable HSI Output.
Return values
None
Reference Manual to
LL API cross
reference:
CR HSIOUTEN LL_RCC_HSI_DisableOutput
LL_RCC_HSI_GetCalibration
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI_GetCalibration (void
)
Function description
Get HSI Calibration value.
Return values
Between: Min_Data = 0x00 and Max_Data = 0xFF
Notes
When HSITRIM is written, HSICAL is updated with the sum of
HSITRIM and the factory trim value
Reference Manual to
LL API cross
reference:
ICSCR HSICAL LL_RCC_HSI_GetCalibration
LL_RCC_HSI_SetCalibTrimming
Function name
__STATIC_INLINE void LL_RCC_HSI_SetCalibTrimming
(uint32_t Value)
Function description
Set HSI Calibration trimming.
Parameters
Value: between Min_Data = 0x00 and Max_Data = 0x1F
Return values
None
Notes
user-programmable trimming value that is added to the
HSICAL
Default value is 16, which, when added to the HSICAL value,
should trim the HSI to 16 MHz +/- 1 %
Reference Manual to
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reference:
ICSCR HSITRIM LL_RCC_HSI_SetCalibTrimming
LL_RCC_HSI_GetCalibTrimming
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI_GetCalibTrimming
(void )
Function description
Get HSI Calibration trimming.
Return values
Between: Min_Data = 0x00 and Max_Data = 0x1F
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LL RCC Generic Driver
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Reference Manual to
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reference:
ICSCR HSITRIM LL_RCC_HSI_GetCalibTrimming
LL_RCC_HSI48_Enable
Function name
__STATIC_INLINE void LL_RCC_HSI48_Enable (void )
Function description
Enable HSI48.
Return values
None
Reference Manual to
LL API cross
reference:
CRRCR HSI48ON LL_RCC_HSI48_Enable
LL_RCC_HSI48_Disable
Function name
__STATIC_INLINE void LL_RCC_HSI48_Disable (void )
Function description
Disable HSI48.
Return values
None
Reference Manual to
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reference:
CRRCR HSI48ON LL_RCC_HSI48_Disable
LL_RCC_HSI48_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI48_IsReady (void )
Function description
Check if HSI48 oscillator Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CRRCR HSI48RDY LL_RCC_HSI48_IsReady
LL_RCC_HSI48_GetCalibration
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI48_GetCalibration
(void )
Function description
Get HSI48 Calibration value.
Return values
Between: Min_Data = 0x00 and Max_Data = 0xFF
Reference Manual to
LL API cross
reference:
CRRCR HSI48CAL LL_RCC_HSI48_GetCalibration
LL_RCC_HSI48_EnableDivider
Function name
__STATIC_INLINE void LL_RCC_HSI48_EnableDivider (void )
Function description
Enable HSI48 Divider (it divides by 6)
Return values
None
LL RCC Generic Driver
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Reference Manual to
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reference:
CRRCR HSI48DIV6OUTEN LL_RCC_HSI48_EnableDivider
LL_RCC_HSI48_DisableDivider
Function name
__STATIC_INLINE void LL_RCC_HSI48_DisableDivider (void )
Function description
Disable HSI48 Divider (it divides by 6)
Return values
None
Reference Manual to
LL API cross
reference:
CRRCR HSI48DIV6OUTEN LL_RCC_HSI48_DisableDivider
LL_RCC_HSI48_IsDivided
Function name
__STATIC_INLINE uint32_t LL_RCC_HSI48_IsDivided (void )
Function description
Check if HSI48 Divider is enabled (it divides by 6)
Return values
State: of bit (1 or 0).
Reference Manual to
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reference:
CRRCR HSI48DIV6OUTEN LL_RCC_HSI48_IsDivided
LL_RCC_LSE_Enable
Function name
__STATIC_INLINE void LL_RCC_LSE_Enable (void )
Function description
Enable Low Speed External (LSE) crystal.
Return values
None
Reference Manual to
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reference:
CSR LSEON LL_RCC_LSE_Enable
LL_RCC_LSE_Disable
Function name
__STATIC_INLINE void LL_RCC_LSE_Disable (void )
Function description
Disable Low Speed External (LSE) crystal.
Return values
None
Reference Manual to
LL API cross
reference:
CSR LSEON LL_RCC_LSE_Disable
LL_RCC_LSE_EnableBypass
Function name
__STATIC_INLINE void LL_RCC_LSE_EnableBypass (void )
Function description
Enable external clock source (LSE bypass).
Return values
None
Reference Manual to
CSR LSEBYP LL_RCC_LSE_EnableBypass
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LL RCC Generic Driver
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LL API cross
reference:
LL_RCC_LSE_DisableBypass
Function name
__STATIC_INLINE void LL_RCC_LSE_DisableBypass (void )
Function description
Disable external clock source (LSE bypass).
Return values
None
Reference Manual to
LL API cross
reference:
CSR LSEBYP LL_RCC_LSE_DisableBypass
LL_RCC_LSE_SetDriveCapability
Function name
__STATIC_INLINE void LL_RCC_LSE_SetDriveCapability
(uint32_t LSEDrive)
Function description
Set LSE oscillator drive capability.
Parameters
LSEDrive: This parameter can be one of the following
values:
LL_RCC_LSEDRIVE_LOW
LL_RCC_LSEDRIVE_MEDIUMLOW
LL_RCC_LSEDRIVE_MEDIUMHIGH
LL_RCC_LSEDRIVE_HIGH
Return values
None
Notes
The oscillator is in Xtal mode when it is not in bypass mode.
Reference Manual to
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reference:
CSR LSEDRV LL_RCC_LSE_SetDriveCapability
LL_RCC_LSE_GetDriveCapability
Function name
__STATIC_INLINE uint32_t LL_RCC_LSE_GetDriveCapability
(void )
Function description
Get LSE oscillator drive capability.
Return values
Returned: value can be one of the following values:
LL_RCC_LSEDRIVE_LOW
LL_RCC_LSEDRIVE_MEDIUMLOW
LL_RCC_LSEDRIVE_MEDIUMHIGH
LL_RCC_LSEDRIVE_HIGH
Reference Manual to
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reference:
CSR LSEDRV LL_RCC_LSE_GetDriveCapability
LL_RCC_LSE_EnableCSS
Function name
__STATIC_INLINE void LL_RCC_LSE_EnableCSS (void )
Function description
Enable Clock security system on LSE.
LL RCC Generic Driver
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Return values
None
Reference Manual to
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reference:
CSR LSECSSON LL_RCC_LSE_EnableCSS
LL_RCC_LSE_DisableCSS
Function name
__STATIC_INLINE void LL_RCC_LSE_DisableCSS (void )
Function description
Disable Clock security system on LSE.
Return values
None
Notes
Clock security system can be disabled only after a LSE failure
detection. In that case it MUST be disabled by software.
Reference Manual to
LL API cross
reference:
CSR LSECSSON LL_RCC_LSE_DisableCSS
LL_RCC_LSE_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_LSE_IsReady (void )
Function description
Check if LSE oscillator Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR LSERDY LL_RCC_LSE_IsReady
LL_RCC_LSE_IsCSSDetected
Function name
__STATIC_INLINE uint32_t LL_RCC_LSE_IsCSSDetected
(void )
Function description
Check if CSS on LSE failure Detection.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR LSECSSD LL_RCC_LSE_IsCSSDetected
LL_RCC_LSI_Enable
Function name
__STATIC_INLINE void LL_RCC_LSI_Enable (void )
Function description
Enable LSI Oscillator.
Return values
None
Reference Manual to
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reference:
CSR LSION LL_RCC_LSI_Enable
UM1749
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LL_RCC_LSI_Disable
Function name
__STATIC_INLINE void LL_RCC_LSI_Disable (void )
Function description
Disable LSI Oscillator.
Return values
None
Reference Manual to
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reference:
CSR LSION LL_RCC_LSI_Disable
LL_RCC_LSI_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_LSI_IsReady (void )
Function description
Check if LSI is Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR LSIRDY LL_RCC_LSI_IsReady
LL_RCC_MSI_Enable
Function name
__STATIC_INLINE void LL_RCC_MSI_Enable (void )
Function description
Enable MSI oscillator.
Return values
None
Reference Manual to
LL API cross
reference:
CR MSION LL_RCC_MSI_Enable
LL_RCC_MSI_Disable
Function name
__STATIC_INLINE void LL_RCC_MSI_Disable (void )
Function description
Disable MSI oscillator.
Return values
None
Reference Manual to
LL API cross
reference:
CR MSION LL_RCC_MSI_Disable
LL_RCC_MSI_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_MSI_IsReady (void )
Function description
Check if MSI oscillator Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR MSIRDY LL_RCC_MSI_IsReady
LL RCC Generic Driver
UM1749
1082/1466
DocID026232 Rev 6
LL_RCC_MSI_SetRange
Function name
__STATIC_INLINE void LL_RCC_MSI_SetRange (uint32_t
Range)
Function description
Configure the Internal Multi Speed oscillator (MSI) clock range in
run mode.
Parameters
Range: This parameter can be one of the following values:
LL_RCC_MSIRANGE_0
LL_RCC_MSIRANGE_1
LL_RCC_MSIRANGE_2
LL_RCC_MSIRANGE_3
LL_RCC_MSIRANGE_4
LL_RCC_MSIRANGE_5
LL_RCC_MSIRANGE_6
Return values
None
Reference Manual to
LL API cross
reference:
ICSCR MSIRANGE LL_RCC_MSI_SetRange
LL_RCC_MSI_GetRange
Function name
__STATIC_INLINE uint32_t LL_RCC_MSI_GetRange (void )
Function description
Get the Internal Multi Speed oscillator (MSI) clock range in run
mode.
Return values
Returned: value can be one of the following values:
LL_RCC_MSIRANGE_0
LL_RCC_MSIRANGE_1
LL_RCC_MSIRANGE_2
LL_RCC_MSIRANGE_3
LL_RCC_MSIRANGE_4
LL_RCC_MSIRANGE_5
LL_RCC_MSIRANGE_6
Reference Manual to
LL API cross
reference:
ICSCR MSIRANGE LL_RCC_MSI_GetRange
LL_RCC_MSI_GetCalibration
Function name
__STATIC_INLINE uint32_t LL_RCC_MSI_GetCalibration (void
)
Function description
Get MSI Calibration value.
Return values
Between: Min_Data = 0x00 and Max_Data = 0xFF
Notes
When MSITRIM is written, MSICAL is updated with the sum
of MSITRIM and the factory trim value
Reference Manual to
LL API cross
reference:
ICSCR MSICAL LL_RCC_MSI_GetCalibration
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1083/1466
LL_RCC_MSI_SetCalibTrimming
Function name
__STATIC_INLINE void LL_RCC_MSI_SetCalibTrimming
(uint32_t Value)
Function description
Set MSI Calibration trimming.
Parameters
Value: between Min_Data = 0x00 and Max_Data = 0xFF
Return values
None
Notes
user-programmable trimming value that is added to the
MSICAL
Reference Manual to
LL API cross
reference:
ICSCR MSITRIM LL_RCC_MSI_SetCalibTrimming
LL_RCC_MSI_GetCalibTrimming
Function name
__STATIC_INLINE uint32_t LL_RCC_MSI_GetCalibTrimming
(void )
Function description
Get MSI Calibration trimming.
Return values
Between: Min_Data = 0x00 and Max_Data = 0xFF
Reference Manual to
LL API cross
reference:
ICSCR MSITRIM LL_RCC_MSI_GetCalibTrimming
LL_RCC_SetSysClkSource
Function name
__STATIC_INLINE void LL_RCC_SetSysClkSource (uint32_t
Source)
Function description
Configure the system clock source.
Parameters
Source: This parameter can be one of the following values:
LL_RCC_SYS_CLKSOURCE_MSI
LL_RCC_SYS_CLKSOURCE_HSI
LL_RCC_SYS_CLKSOURCE_HSE
LL_RCC_SYS_CLKSOURCE_PLL
Return values
None
Reference Manual to
LL API cross
reference:
CFGR SW LL_RCC_SetSysClkSource
LL_RCC_GetSysClkSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetSysClkSource (void )
Function description
Get the system clock source.
Return values
Returned: value can be one of the following values:
LL_RCC_SYS_CLKSOURCE_STATUS_MSI
LL_RCC_SYS_CLKSOURCE_STATUS_HSI
LL_RCC_SYS_CLKSOURCE_STATUS_HSE
LL_RCC_SYS_CLKSOURCE_STATUS_PLL
LL RCC Generic Driver
UM1749
1084/1466
DocID026232 Rev 6
Reference Manual to
LL API cross
reference:
CFGR SWS LL_RCC_GetSysClkSource
LL_RCC_SetAHBPrescaler
Function name
__STATIC_INLINE void LL_RCC_SetAHBPrescaler (uint32_t
Prescaler)
Function description
Set AHB prescaler.
Parameters
Prescaler: This parameter can be one of the following
values:
LL_RCC_SYSCLK_DIV_1
LL_RCC_SYSCLK_DIV_2
LL_RCC_SYSCLK_DIV_4
LL_RCC_SYSCLK_DIV_8
LL_RCC_SYSCLK_DIV_16
LL_RCC_SYSCLK_DIV_64
LL_RCC_SYSCLK_DIV_128
LL_RCC_SYSCLK_DIV_256
LL_RCC_SYSCLK_DIV_512
Return values
None
Reference Manual to
LL API cross
reference:
CFGR HPRE LL_RCC_SetAHBPrescaler
LL_RCC_SetAPB1Prescaler
Function name
__STATIC_INLINE void LL_RCC_SetAPB1Prescaler (uint32_t
Prescaler)
Function description
Set APB1 prescaler.
Parameters
Prescaler: This parameter can be one of the following
values:
LL_RCC_APB1_DIV_1
LL_RCC_APB1_DIV_2
LL_RCC_APB1_DIV_4
LL_RCC_APB1_DIV_8
LL_RCC_APB1_DIV_16
Return values
None
Reference Manual to
LL API cross
reference:
CFGR PPRE1 LL_RCC_SetAPB1Prescaler
LL_RCC_SetAPB2Prescaler
Function name
__STATIC_INLINE void LL_RCC_SetAPB2Prescaler (uint32_t
Prescaler)
Function description
Set APB2 prescaler.
Parameters
Prescaler: This parameter can be one of the following
values:
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1085/1466
LL_RCC_APB2_DIV_1
LL_RCC_APB2_DIV_2
LL_RCC_APB2_DIV_4
LL_RCC_APB2_DIV_8
LL_RCC_APB2_DIV_16
Return values
None
Reference Manual to
LL API cross
reference:
CFGR PPRE2 LL_RCC_SetAPB2Prescaler
LL_RCC_GetAHBPrescaler
Function name
__STATIC_INLINE uint32_t LL_RCC_GetAHBPrescaler (void )
Function description
Get AHB prescaler.
Return values
Returned: value can be one of the following values:
LL_RCC_SYSCLK_DIV_1
LL_RCC_SYSCLK_DIV_2
LL_RCC_SYSCLK_DIV_4
LL_RCC_SYSCLK_DIV_8
LL_RCC_SYSCLK_DIV_16
LL_RCC_SYSCLK_DIV_64
LL_RCC_SYSCLK_DIV_128
LL_RCC_SYSCLK_DIV_256
LL_RCC_SYSCLK_DIV_512
Reference Manual to
LL API cross
reference:
CFGR HPRE LL_RCC_GetAHBPrescaler
LL_RCC_GetAPB1Prescaler
Function name
__STATIC_INLINE uint32_t LL_RCC_GetAPB1Prescaler (void )
Function description
Get APB1 prescaler.
Return values
Returned: value can be one of the following values:
LL_RCC_APB1_DIV_1
LL_RCC_APB1_DIV_2
LL_RCC_APB1_DIV_4
LL_RCC_APB1_DIV_8
LL_RCC_APB1_DIV_16
Reference Manual to
LL API cross
reference:
CFGR PPRE1 LL_RCC_GetAPB1Prescaler
LL_RCC_GetAPB2Prescaler
Function name
__STATIC_INLINE uint32_t LL_RCC_GetAPB2Prescaler (void )
Function description
Get APB2 prescaler.
Return values
Returned: value can be one of the following values:
LL_RCC_APB2_DIV_1
LL RCC Generic Driver
UM1749
1086/1466
DocID026232 Rev 6
LL_RCC_APB2_DIV_2
LL_RCC_APB2_DIV_4
LL_RCC_APB2_DIV_8
LL_RCC_APB2_DIV_16
Reference Manual to
LL API cross
reference:
CFGR PPRE2 LL_RCC_GetAPB2Prescaler
LL_RCC_SetClkAfterWakeFromStop
Function name
__STATIC_INLINE void LL_RCC_SetClkAfterWakeFromStop
(uint32_t Clock)
Function description
Set Clock After Wake-Up From Stop mode.
Parameters
Clock: This parameter can be one of the following values:
LL_RCC_STOP_WAKEUPCLOCK_MSI
LL_RCC_STOP_WAKEUPCLOCK_HSI
Return values
None
Reference Manual to
LL API cross
reference:
CFGR STOPWUCK LL_RCC_SetClkAfterWakeFromStop
LL_RCC_GetClkAfterWakeFromStop
Function name
__STATIC_INLINE uint32_t
LL_RCC_GetClkAfterWakeFromStop (void )
Function description
Get Clock After Wake-Up From Stop mode.
Return values
Returned: value can be one of the following values:
LL_RCC_STOP_WAKEUPCLOCK_MSI
LL_RCC_STOP_WAKEUPCLOCK_HSI
Reference Manual to
LL API cross
reference:
CFGR STOPWUCK LL_RCC_GetClkAfterWakeFromStop
LL_RCC_ConfigMCO
Function name
__STATIC_INLINE void LL_RCC_ConfigMCO (uint32_t
MCOxSource, uint32_t MCOxPrescaler)
Function description
Configure MCOx.
Parameters
MCOxSource: This parameter can be one of the following
values: (*) value not defined in all devices.
LL_RCC_MCO1SOURCE_NOCLOCK
LL_RCC_MCO1SOURCE_SYSCLK
LL_RCC_MCO1SOURCE_HSI
LL_RCC_MCO1SOURCE_MSI
LL_RCC_MCO1SOURCE_HSE
LL_RCC_MCO1SOURCE_PLLCLK
LL_RCC_MCO1SOURCE_LSI
LL_RCC_MCO1SOURCE_LSE
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1087/1466
LL_RCC_MCO1SOURCE_HSI48 (*)
MCOxPrescaler: This parameter can be one of the following
values:
LL_RCC_MCO1_DIV_1
LL_RCC_MCO1_DIV_2
LL_RCC_MCO1_DIV_4
LL_RCC_MCO1_DIV_8
LL_RCC_MCO1_DIV_16
Return values
None
Reference Manual to
LL API cross
reference:
CFGR MCOSEL LL_RCC_ConfigMCO
CFGR MCOPRE LL_RCC_ConfigMCO
LL_RCC_SetUSARTClockSource
Function name
__STATIC_INLINE void LL_RCC_SetUSARTClockSource
(uint32_t USARTxSource)
Function description
Configure USARTx clock source.
Parameters
USARTxSource: This parameter can be one of the following
values: (*) value not defined in all devices.
LL_RCC_USART1_CLKSOURCE_PCLK2 (*)
LL_RCC_USART1_CLKSOURCE_SYSCLK (*)
LL_RCC_USART1_CLKSOURCE_HSI (*)
LL_RCC_USART1_CLKSOURCE_LSE (*)
LL_RCC_USART2_CLKSOURCE_PCLK1
LL_RCC_USART2_CLKSOURCE_SYSCLK
LL_RCC_USART2_CLKSOURCE_HSI
LL_RCC_USART2_CLKSOURCE_LSE
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR USARTxSEL LL_RCC_SetUSARTClockSource
LL_RCC_SetLPUARTClockSource
Function name
__STATIC_INLINE void LL_RCC_SetLPUARTClockSource
(uint32_t LPUARTxSource)
Function description
Configure LPUART1x clock source.
Parameters
LPUARTxSource: This parameter can be one of the
following values:
LL_RCC_LPUART1_CLKSOURCE_PCLK1
LL_RCC_LPUART1_CLKSOURCE_SYSCLK
LL_RCC_LPUART1_CLKSOURCE_HSI
LL_RCC_LPUART1_CLKSOURCE_LSE
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR LPUART1SEL LL_RCC_SetLPUARTClockSource
LL RCC Generic Driver
UM1749
1088/1466
DocID026232 Rev 6
LL_RCC_SetI2CClockSource
Function name
__STATIC_INLINE void LL_RCC_SetI2CClockSource (uint32_t
I2CxSource)
Function description
Configure I2Cx clock source.
Parameters
I2CxSource: This parameter can be one of the following
values: (*) value not defined in all devices.
LL_RCC_I2C1_CLKSOURCE_PCLK1
LL_RCC_I2C1_CLKSOURCE_SYSCLK
LL_RCC_I2C1_CLKSOURCE_HSI
LL_RCC_I2C3_CLKSOURCE_PCLK1 (*)
LL_RCC_I2C3_CLKSOURCE_SYSCLK (*)
LL_RCC_I2C3_CLKSOURCE_HSI (*)
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR I2CxSEL LL_RCC_SetI2CClockSource
LL_RCC_SetLPTIMClockSource
Function name
__STATIC_INLINE void LL_RCC_SetLPTIMClockSource
(uint32_t LPTIMxSource)
Function description
Configure LPTIMx clock source.
Parameters
LPTIMxSource: This parameter can be one of the following
values:
LL_RCC_LPTIM1_CLKSOURCE_PCLK1
LL_RCC_LPTIM1_CLKSOURCE_LSI
LL_RCC_LPTIM1_CLKSOURCE_HSI
LL_RCC_LPTIM1_CLKSOURCE_LSE
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR LPTIMxSEL LL_RCC_SetLPTIMClockSource
LL_RCC_SetRNGClockSource
Function name
__STATIC_INLINE void LL_RCC_SetRNGClockSource
(uint32_t RNGxSource)
Function description
Configure RNG clock source.
Parameters
RNGxSource: This parameter can be one of the following
values:
LL_RCC_RNG_CLKSOURCE_PLL
LL_RCC_RNG_CLKSOURCE_HSI48
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR HSI48SEL LL_RCC_SetRNGClockSource
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1089/1466
LL_RCC_SetUSBClockSource
Function name
__STATIC_INLINE void LL_RCC_SetUSBClockSource
(uint32_t USBxSource)
Function description
Configure USB clock source.
Parameters
USBxSource: This parameter can be one of the following
values:
LL_RCC_RNG_CLKSOURCE_PLL
LL_RCC_RNG_CLKSOURCE_HSI48
Return values
None
Reference Manual to
LL API cross
reference:
CCIPR HSI48SEL LL_RCC_SetUSBClockSource
LL_RCC_GetUSARTClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetUSARTClockSource
(uint32_t USARTx)
Function description
Get USARTx clock source.
Parameters
USARTx: This parameter can be one of the following values:
LL_RCC_USART1_CLKSOURCE (*)
LL_RCC_USART2_CLKSOURCE
Return values
Returned: value can be one of the following values: (*)
value not defined in all devices.
LL_RCC_USART1_CLKSOURCE_PCLK2 (*)
LL_RCC_USART1_CLKSOURCE_SYSCLK (*)
LL_RCC_USART1_CLKSOURCE_HSI (*)
LL_RCC_USART1_CLKSOURCE_LSE (*)
LL_RCC_USART2_CLKSOURCE_PCLK1
LL_RCC_USART2_CLKSOURCE_SYSCLK
LL_RCC_USART2_CLKSOURCE_HSI
LL_RCC_USART2_CLKSOURCE_LSE
Reference Manual to
LL API cross
reference:
CCIPR USARTxSEL LL_RCC_GetUSARTClockSource
LL_RCC_GetLPUARTClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetLPUARTClockSource
(uint32_t LPUARTx)
Function description
Get LPUARTx clock source.
Parameters
LPUARTx: This parameter can be one of the following
values:
LL_RCC_LPUART1_CLKSOURCE
Return values
Returned: value can be one of the following values:
LL_RCC_LPUART1_CLKSOURCE_PCLK1
LL_RCC_LPUART1_CLKSOURCE_SYSCLK
LL_RCC_LPUART1_CLKSOURCE_HSI
LL RCC Generic Driver
UM1749
1090/1466
DocID026232 Rev 6
LL_RCC_LPUART1_CLKSOURCE_LSE
Reference Manual to
LL API cross
reference:
CCIPR LPUART1SEL LL_RCC_GetLPUARTClockSource
LL_RCC_GetI2CClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetI2CClockSource
(uint32_t I2Cx)
Function description
Get I2Cx clock source.
Parameters
I2Cx: This parameter can be one of the following values:
LL_RCC_I2C1_CLKSOURCE
LL_RCC_I2C3_CLKSOURCE
Return values
Returned: value can be one of the following values: (*)
value not defined in all devices.
LL_RCC_I2C1_CLKSOURCE_PCLK1
LL_RCC_I2C1_CLKSOURCE_SYSCLK
LL_RCC_I2C1_CLKSOURCE_HSI
LL_RCC_I2C3_CLKSOURCE_PCLK1 (*)
LL_RCC_I2C3_CLKSOURCE_SYSCLK (*)
LL_RCC_I2C3_CLKSOURCE_HSI (*)
Reference Manual to
LL API cross
reference:
CCIPR I2CxSEL LL_RCC_GetI2CClockSource
LL_RCC_GetLPTIMClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetLPTIMClockSource
(uint32_t LPTIMx)
Function description
Get LPTIMx clock source.
Parameters
LPTIMx: This parameter can be one of the following values:
LL_RCC_LPTIM1_CLKSOURCE
Return values
Returned: value can be one of the following values:
LL_RCC_LPTIM1_CLKSOURCE_PCLK1
LL_RCC_LPTIM1_CLKSOURCE_LSI
LL_RCC_LPTIM1_CLKSOURCE_HSI
LL_RCC_LPTIM1_CLKSOURCE_LSE
Reference Manual to
LL API cross
reference:
CCIPR LPTIMxSEL LL_RCC_GetLPTIMClockSource
LL_RCC_GetRNGClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetRNGClockSource
(uint32_t RNGx)
Function description
Get RNGx clock source.
Parameters
RNGx: This parameter can be one of the following values:
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1091/1466
LL_RCC_RNG_CLKSOURCE
Return values
Returned: value can be one of the following values:
LL_RCC_RNG_CLKSOURCE_PLL
LL_RCC_RNG_CLKSOURCE_HSI48
Reference Manual to
LL API cross
reference:
CCIPR CLK48SEL LL_RCC_GetRNGClockSource
LL_RCC_GetUSBClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetUSBClockSource
(uint32_t USBx)
Function description
Get USBx clock source.
Parameters
USBx: This parameter can be one of the following values:
LL_RCC_USB_CLKSOURCE
Return values
Returned: value can be one of the following values:
LL_RCC_USB_CLKSOURCE_PLL
LL_RCC_USB_CLKSOURCE_HSI48
Reference Manual to
LL API cross
reference:
CCIPR CLK48SEL LL_RCC_GetUSBClockSource
LL_RCC_SetRTCClockSource
Function name
__STATIC_INLINE void LL_RCC_SetRTCClockSource
(uint32_t Source)
Function description
Set RTC Clock Source.
Parameters
Source: This parameter can be one of the following values:
LL_RCC_RTC_CLKSOURCE_NONE
LL_RCC_RTC_CLKSOURCE_LSE
LL_RCC_RTC_CLKSOURCE_LSI
LL_RCC_RTC_CLKSOURCE_HSE
Return values
None
Notes
Once the RTC clock source has been selected, it cannot be
changed any more unless the Backup domain is reset, or
unless a failure is detected on LSE (LSECSSD is set). The
RTCRST bit can be used to reset them.
Reference Manual to
LL API cross
reference:
CSR RTCSEL LL_RCC_SetRTCClockSource
LL_RCC_GetRTCClockSource
Function name
__STATIC_INLINE uint32_t LL_RCC_GetRTCClockSource
(void )
Function description
Get RTC Clock Source.
Return values
Returned: value can be one of the following values:
LL RCC Generic Driver
UM1749
1092/1466
DocID026232 Rev 6
LL_RCC_RTC_CLKSOURCE_NONE
LL_RCC_RTC_CLKSOURCE_LSE
LL_RCC_RTC_CLKSOURCE_LSI
LL_RCC_RTC_CLKSOURCE_HSE
Reference Manual to
LL API cross
reference:
CSR RTCSEL LL_RCC_GetRTCClockSource
LL_RCC_EnableRTC
Function name
__STATIC_INLINE void LL_RCC_EnableRTC (void )
Function description
Enable RTC.
Return values
None
Reference Manual to
LL API cross
reference:
CSR RTCEN LL_RCC_EnableRTC
LL_RCC_DisableRTC
Function name
__STATIC_INLINE void LL_RCC_DisableRTC (void )
Function description
Disable RTC.
Return values
None
Reference Manual to
LL API cross
reference:
CSR RTCEN LL_RCC_DisableRTC
LL_RCC_IsEnabledRTC
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledRTC (void )
Function description
Check if RTC has been enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR RTCEN LL_RCC_IsEnabledRTC
LL_RCC_ForceBackupDomainReset
Function name
__STATIC_INLINE void LL_RCC_ForceBackupDomainReset
(void )
Function description
Force the Backup domain reset.
Return values
None
Reference Manual to
LL API cross
reference:
CSR RTCRST LL_RCC_ForceBackupDomainReset
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1093/1466
LL_RCC_ReleaseBackupDomainReset
Function name
__STATIC_INLINE void LL_RCC_ReleaseBackupDomainReset
(void )
Function description
Release the Backup domain reset.
Return values
None
Reference Manual to
LL API cross
reference:
CSR RTCRST LL_RCC_ReleaseBackupDomainReset
LL_RCC_PLL_Enable
Function name
__STATIC_INLINE void LL_RCC_PLL_Enable (void )
Function description
Enable PLL.
Return values
None
Reference Manual to
LL API cross
reference:
CR PLLON LL_RCC_PLL_Enable
LL_RCC_PLL_Disable
Function name
__STATIC_INLINE void LL_RCC_PLL_Disable (void )
Function description
Disable PLL.
Return values
None
Notes
Cannot be disabled if the PLL clock is used as the system
clock
Reference Manual to
LL API cross
reference:
CR PLLON LL_RCC_PLL_Disable
LL_RCC_PLL_IsReady
Function name
__STATIC_INLINE uint32_t LL_RCC_PLL_IsReady (void )
Function description
Check if PLL Ready.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR PLLRDY LL_RCC_PLL_IsReady
LL_RCC_PLL_ConfigDomain_SYS
Function name
__STATIC_INLINE void LL_RCC_PLL_ConfigDomain_SYS
(uint32_t Source, uint32_t PLLMul, uint32_t PLLDiv)
Function description
Configure PLL used for SYSCLK Domain.
Parameters
Source: This parameter can be one of the following values:
LL_RCC_PLLSOURCE_HSI
LL_RCC_PLLSOURCE_HSE
LL RCC Generic Driver
UM1749
1094/1466
DocID026232 Rev 6
PLLMul: This parameter can be one of the following values:
LL_RCC_PLL_MUL_3
LL_RCC_PLL_MUL_4
LL_RCC_PLL_MUL_6
LL_RCC_PLL_MUL_8
LL_RCC_PLL_MUL_12
LL_RCC_PLL_MUL_16
LL_RCC_PLL_MUL_24
LL_RCC_PLL_MUL_32
LL_RCC_PLL_MUL_48
PLLDiv: This parameter can be one of the following values:
LL_RCC_PLL_DIV_2
LL_RCC_PLL_DIV_3
LL_RCC_PLL_DIV_4
Return values
None
Reference Manual to
LL API cross
reference:
CFGR PLLSRC LL_RCC_PLL_ConfigDomain_SYS
CFGR PLLMUL LL_RCC_PLL_ConfigDomain_SYS
CFGR PLLDIV LL_RCC_PLL_ConfigDomain_SYS
LL_RCC_PLL_GetMainSource
Function name
__STATIC_INLINE uint32_t LL_RCC_PLL_GetMainSource
(void )
Function description
Get the oscillator used as PLL clock source.
Return values
Returned: value can be one of the following values:
LL_RCC_PLLSOURCE_HSI
LL_RCC_PLLSOURCE_HSE
Reference Manual to
LL API cross
reference:
CFGR PLLSRC LL_RCC_PLL_GetMainSource
LL_RCC_PLL_GetMultiplicator
Function name
__STATIC_INLINE uint32_t LL_RCC_PLL_GetMultiplicator
(void )
Function description
Get PLL multiplication Factor.
Return values
Returned: value can be one of the following values:
LL_RCC_PLL_MUL_3
LL_RCC_PLL_MUL_4
LL_RCC_PLL_MUL_6
LL_RCC_PLL_MUL_8
LL_RCC_PLL_MUL_12
LL_RCC_PLL_MUL_16
LL_RCC_PLL_MUL_24
LL_RCC_PLL_MUL_32
LL_RCC_PLL_MUL_48
Reference Manual to
LL API cross
reference:
CFGR PLLMUL LL_RCC_PLL_GetMultiplicator
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1095/1466
LL_RCC_PLL_GetDivider
Function name
__STATIC_INLINE uint32_t LL_RCC_PLL_GetDivider (void )
Function description
Get Division factor for the main PLL and other PLL.
Return values
Returned: value can be one of the following values:
LL_RCC_PLL_DIV_2
LL_RCC_PLL_DIV_3
LL_RCC_PLL_DIV_4
Reference Manual to
LL API cross
reference:
CFGR PLLDIV LL_RCC_PLL_GetDivider
LL_RCC_ClearFlag_LSIRDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_LSIRDY (void )
Function description
Clear LSI ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR LSIRDYC LL_RCC_ClearFlag_LSIRDY
LL_RCC_ClearFlag_LSERDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_LSERDY (void )
Function description
Clear LSE ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR LSERDYC LL_RCC_ClearFlag_LSERDY
LL_RCC_ClearFlag_MSIRDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_MSIRDY (void )
Function description
Clear MSI ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR MSIRDYC LL_RCC_ClearFlag_MSIRDY
LL_RCC_ClearFlag_HSIRDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_HSIRDY (void )
Function description
Clear HSI ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
CICR HSIRDYC LL_RCC_ClearFlag_HSIRDY
LL RCC Generic Driver
UM1749
1096/1466
DocID026232 Rev 6
reference:
LL_RCC_ClearFlag_HSERDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_HSERDY (void )
Function description
Clear HSE ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR HSERDYC LL_RCC_ClearFlag_HSERDY
LL_RCC_ClearFlag_PLLRDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_PLLRDY (void )
Function description
Clear PLL ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR PLLRDYC LL_RCC_ClearFlag_PLLRDY
LL_RCC_ClearFlag_HSI48RDY
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_HSI48RDY (void )
Function description
Clear HSI48 ready interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR HSI48RDYC LL_RCC_ClearFlag_HSI48RDY
LL_RCC_ClearFlag_HSECSS
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_HSECSS (void )
Function description
Clear Clock security system interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR CSSC LL_RCC_ClearFlag_HSECSS
LL_RCC_ClearFlag_LSECSS
Function name
__STATIC_INLINE void LL_RCC_ClearFlag_LSECSS (void )
Function description
Clear LSE Clock security system interrupt flag.
Return values
None
Reference Manual to
LL API cross
reference:
CICR LSECSSC LL_RCC_ClearFlag_LSECSS
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1097/1466
LL_RCC_IsActiveFlag_LSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSIRDY
(void )
Function description
Check if LSI ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR LSIRDYF LL_RCC_IsActiveFlag_LSIRDY
LL_RCC_IsActiveFlag_LSERDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSERDY
(void )
Function description
Check if LSE ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR LSERDYF LL_RCC_IsActiveFlag_LSERDY
LL_RCC_IsActiveFlag_MSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_MSIRDY
(void )
Function description
Check if MSI ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR MSIRDYF LL_RCC_IsActiveFlag_MSIRDY
LL_RCC_IsActiveFlag_HSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSIRDY
(void )
Function description
Check if HSI ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR HSIRDYF LL_RCC_IsActiveFlag_HSIRDY
LL_RCC_IsActiveFlag_HSERDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSERDY
(void )
Function description
Check if HSE ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
LL RCC Generic Driver
UM1749
1098/1466
DocID026232 Rev 6
Reference Manual to
LL API cross
reference:
CIFR HSERDYF LL_RCC_IsActiveFlag_HSERDY
LL_RCC_IsActiveFlag_PLLRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PLLRDY
(void )
Function description
Check if PLL ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR PLLRDYF LL_RCC_IsActiveFlag_PLLRDY
LL_RCC_IsActiveFlag_HSI48RDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSI48RDY
(void )
Function description
Check if HSI48 ready interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR HSI48RDYF LL_RCC_IsActiveFlag_HSI48RDY
LL_RCC_IsActiveFlag_HSECSS
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSECSS
(void )
Function description
Check if Clock security system interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR CSSF LL_RCC_IsActiveFlag_HSECSS
LL_RCC_IsActiveFlag_LSECSS
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LSECSS
(void )
Function description
Check if LSE Clock security system interrupt occurred or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIFR LSECSSF LL_RCC_IsActiveFlag_LSECSS
LL_RCC_IsActiveFlag_HSIDIV
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_HSIDIV
(void )
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1099/1466
Function description
Check if HSI Divider is enabled (it divides by 4)
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR HSIDIVF LL_RCC_IsActiveFlag_HSIDIV
LL_RCC_IsActiveFlag_FWRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_FWRST
(void )
Function description
Check if RCC flag FW reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR FWRSTF LL_RCC_IsActiveFlag_FWRST
LL_RCC_IsActiveFlag_IWDGRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_IWDGRST
(void )
Function description
Check if RCC flag Independent Watchdog reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR IWDGRSTF LL_RCC_IsActiveFlag_IWDGRST
LL_RCC_IsActiveFlag_LPWRRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_LPWRRST
(void )
Function description
Check if RCC flag Low Power reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR LPWRRSTF LL_RCC_IsActiveFlag_LPWRRST
LL_RCC_IsActiveFlag_OBLRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_OBLRST
(void )
Function description
Check if RCC flag is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR OBLRSTF LL_RCC_IsActiveFlag_OBLRST
LL RCC Generic Driver
UM1749
1100/1466
DocID026232 Rev 6
LL_RCC_IsActiveFlag_PINRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PINRST
(void )
Function description
Check if RCC flag Pin reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR PINRSTF LL_RCC_IsActiveFlag_PINRST
LL_RCC_IsActiveFlag_PORRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_PORRST
(void )
Function description
Check if RCC flag POR/PDR reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR PORRSTF LL_RCC_IsActiveFlag_PORRST
LL_RCC_IsActiveFlag_SFTRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_SFTRST
(void )
Function description
Check if RCC flag Software reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR SFTRSTF LL_RCC_IsActiveFlag_SFTRST
LL_RCC_IsActiveFlag_WWDGRST
Function name
__STATIC_INLINE uint32_t LL_RCC_IsActiveFlag_WWDGRST
(void )
Function description
Check if RCC flag Window Watchdog reset is set or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CSR WWDGRSTF LL_RCC_IsActiveFlag_WWDGRST
LL_RCC_ClearResetFlags
Function name
__STATIC_INLINE void LL_RCC_ClearResetFlags (void )
Function description
Set RMVF bit to clear the reset flags.
Return values
None
Reference Manual to
LL API cross
CSR RMVF LL_RCC_ClearResetFlags
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1101/1466
reference:
LL_RCC_EnableIT_LSIRDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_LSIRDY (void )
Function description
Enable LSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSIRDYIE LL_RCC_EnableIT_LSIRDY
LL_RCC_EnableIT_LSERDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_LSERDY (void )
Function description
Enable LSE ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSERDYIE LL_RCC_EnableIT_LSERDY
LL_RCC_EnableIT_MSIRDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_MSIRDY (void )
Function description
Enable MSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER MSIRDYIE LL_RCC_EnableIT_MSIRDY
LL_RCC_EnableIT_HSIRDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_HSIRDY (void )
Function description
Enable HSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSIRDYIE LL_RCC_EnableIT_HSIRDY
LL_RCC_EnableIT_HSERDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_HSERDY (void )
Function description
Enable HSE ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSERDYIE LL_RCC_EnableIT_HSERDY
LL RCC Generic Driver
UM1749
1102/1466
DocID026232 Rev 6
LL_RCC_EnableIT_PLLRDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_PLLRDY (void )
Function description
Enable PLL ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER PLLRDYIE LL_RCC_EnableIT_PLLRDY
LL_RCC_EnableIT_HSI48RDY
Function name
__STATIC_INLINE void LL_RCC_EnableIT_HSI48RDY (void )
Function description
Enable HSI48 ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSI48RDYIE LL_RCC_EnableIT_HSI48RDY
LL_RCC_EnableIT_LSECSS
Function name
__STATIC_INLINE void LL_RCC_EnableIT_LSECSS (void )
Function description
Enable LSE clock security system interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSECSSIE LL_RCC_EnableIT_LSECSS
LL_RCC_DisableIT_LSIRDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_LSIRDY (void )
Function description
Disable LSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSIRDYIE LL_RCC_DisableIT_LSIRDY
LL_RCC_DisableIT_LSERDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_LSERDY (void )
Function description
Disable LSE ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSERDYIE LL_RCC_DisableIT_LSERDY
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1103/1466
LL_RCC_DisableIT_MSIRDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_MSIRDY (void )
Function description
Disable MSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER MSIRDYIE LL_RCC_DisableIT_MSIRDY
LL_RCC_DisableIT_HSIRDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_HSIRDY (void )
Function description
Disable HSI ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSIRDYIE LL_RCC_DisableIT_HSIRDY
LL_RCC_DisableIT_HSERDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_HSERDY (void )
Function description
Disable HSE ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSERDYIE LL_RCC_DisableIT_HSERDY
LL_RCC_DisableIT_PLLRDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_PLLRDY (void )
Function description
Disable PLL ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER PLLRDYIE LL_RCC_DisableIT_PLLRDY
LL_RCC_DisableIT_HSI48RDY
Function name
__STATIC_INLINE void LL_RCC_DisableIT_HSI48RDY (void )
Function description
Disable HSI48 ready interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER HSI48RDYIE LL_RCC_DisableIT_HSI48RDY
LL RCC Generic Driver
UM1749
1104/1466
DocID026232 Rev 6
LL_RCC_DisableIT_LSECSS
Function name
__STATIC_INLINE void LL_RCC_DisableIT_LSECSS (void )
Function description
Disable LSE clock security system interrupt.
Return values
None
Reference Manual to
LL API cross
reference:
CIER LSECSSIE LL_RCC_DisableIT_LSECSS
LL_RCC_IsEnabledIT_LSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSIRDY
(void )
Function description
Checks if LSI ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER LSIRDYIE LL_RCC_IsEnabledIT_LSIRDY
LL_RCC_IsEnabledIT_LSERDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSERDY
(void )
Function description
Checks if LSE ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER LSERDYIE LL_RCC_IsEnabledIT_LSERDY
LL_RCC_IsEnabledIT_MSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_MSIRDY
(void )
Function description
Checks if MSI ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER MSIRDYIE LL_RCC_IsEnabledIT_MSIRDY
LL_RCC_IsEnabledIT_HSIRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_HSIRDY
(void )
Function description
Checks if HSI ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
CIER HSIRDYIE LL_RCC_IsEnabledIT_HSIRDY
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1105/1466
reference:
LL_RCC_IsEnabledIT_HSERDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_HSERDY
(void )
Function description
Checks if HSE ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER HSERDYIE LL_RCC_IsEnabledIT_HSERDY
LL_RCC_IsEnabledIT_PLLRDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_PLLRDY
(void )
Function description
Checks if PLL ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER PLLRDYIE LL_RCC_IsEnabledIT_PLLRDY
LL_RCC_IsEnabledIT_HSI48RDY
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_HSI48RDY
(void )
Function description
Checks if HSI48 ready interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER HSI48RDYIE LL_RCC_IsEnabledIT_HSI48RDY
LL_RCC_IsEnabledIT_LSECSS
Function name
__STATIC_INLINE uint32_t LL_RCC_IsEnabledIT_LSECSS
(void )
Function description
Checks if LSECSS interrupt source is enabled or disabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CIER LSECSSIE LL_RCC_IsEnabledIT_LSECSS
LL_RCC_DeInit
Function name
ErrorStatus LL_RCC_DeInit (void )
Function description
Reset the RCC clock configuration to the default reset state.
Return values
An: ErrorStatus enumeration value:
LL RCC Generic Driver
UM1749
1106/1466
DocID026232 Rev 6
SUCCESS: RCC registers are de-initialized
ERROR: not applicable
Notes
The default reset state of the clock configuration is given
below: MSI ON and used as system clock sourceHSE, HSI
and PLL OFFAHB, APB1 and APB2 prescaler set to 1.CSS,
MCO OFFAll interrupts disabled
This function doesn't modify the configuration of the
Peripheral clocksLSI, LSE and RTC clocks
LL_RCC_GetSystemClocksFreq
Function name
void LL_RCC_GetSystemClocksFreq
(LL_RCC_ClocksTypeDef * RCC_Clocks)
Function description
Return the frequencies of different on chip clocks; System, AHB,
APB1 and APB2 buses clocks.
Parameters
RCC_Clocks: pointer to a LL_RCC_ClocksTypeDef
structure which will hold the clocks frequencies
Return values
None
Notes
Each time SYSCLK, HCLK, PCLK1 and/or PCLK2 clock
changes, this function must be called to update structure
fields. Otherwise, any configuration based on this function will
be incorrect.
LL_RCC_GetUSARTClockFreq
Function name
uint32_t LL_RCC_GetUSARTClockFreq (uint32_t
USARTxSource)
Function description
Return USARTx clock frequency.
Parameters
USARTxSource: This parameter can be one of the following
values: (*) value not defined in all devices.
LL_RCC_USART1_CLKSOURCE
LL_RCC_USART2_CLKSOURCE (*)
Return values
USART: clock frequency (in Hz)
LL_RCC_PERIPH_FREQUENCY_NO indicates that
oscillator (HSI or LSE) is not ready
LL_RCC_GetI2CClockFreq
Function name
uint32_t LL_RCC_GetI2CClockFreq (uint32_t I2CxSource)
Function description
Return I2Cx clock frequency.
Parameters
I2CxSource: This parameter can be one of the following
values: (*) value not defined in all devices
LL_RCC_I2C1_CLKSOURCE
LL_RCC_I2C3_CLKSOURCE (*)
Return values
I2C: clock frequency (in Hz)
LL_RCC_PERIPH_FREQUENCY_NO indicates that HSI
oscillator is not ready
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1107/1466
LL_RCC_GetLPUARTClockFreq
Function name
uint32_t LL_RCC_GetLPUARTClockFreq (uint32_t
LPUARTxSource)
Function description
Return LPUARTx clock frequency.
Parameters
LPUARTxSource: This parameter can be one of the
following values:
LL_RCC_LPUART1_CLKSOURCE
Return values
LPUART: clock frequency (in Hz)
LL_RCC_PERIPH_FREQUENCY_NO indicates that
oscillator (HSI or LSE) is not ready
LL_RCC_GetLPTIMClockFreq
Function name
uint32_t LL_RCC_GetLPTIMClockFreq (uint32_t
LPTIMxSource)
Function description
Return LPTIMx clock frequency.
Parameters
LPTIMxSource: This parameter can be one of the following
values:
LL_RCC_LPTIM1_CLKSOURCE
Return values
LPTIM: clock frequency (in Hz)
LL_RCC_PERIPH_FREQUENCY_NO indicates that
oscillator (HSI or LSE) is not ready
LL_RCC_GetUSBClockFreq
Function name
uint32_t LL_RCC_GetUSBClockFreq (uint32_t USBxSource)
Function description
Return USBx clock frequency.
Parameters
USBxSource: This parameter can be one of the following
values:
LL_RCC_USB_CLKSOURCE
Return values
USB: clock frequency (in Hz)
LL_RCC_PERIPH_FREQUENCY_NO indicates that
oscillator (HSI48) or PLL is not ready
LL_RCC_PERIPH_FREQUENCY_NA indicates that no
clock source selected
69.3 RCC Firmware driver defines
69.3.1 RCC
APB low-speed prescaler (APB1)
LL_RCC_APB1_DIV_1
HCLK not divided
LL_RCC_APB1_DIV_2
HCLK divided by 2
LL_RCC_APB1_DIV_4
HCLK divided by 4
LL_RCC_APB1_DIV_8
HCLK divided by 8
LL RCC Generic Driver
UM1749
1108/1466
DocID026232 Rev 6
LL_RCC_APB1_DIV_16
HCLK divided by 16
APB high-speed prescaler (APB2)
LL_RCC_APB2_DIV_1
HCLK not divided
LL_RCC_APB2_DIV_2
HCLK divided by 2
LL_RCC_APB2_DIV_4
HCLK divided by 4
LL_RCC_APB2_DIV_8
HCLK divided by 8
LL_RCC_APB2_DIV_16
HCLK divided by 16
Clear Flags Defines
LL_RCC_CICR_LSIRDYC
LSI Ready Interrupt Clear
LL_RCC_CICR_LSERDYC
LSE Ready Interrupt Clear
LL_RCC_CICR_HSIRDYC
HSI Ready Interrupt Clear
LL_RCC_CICR_HSERDYC
HSE Ready Interrupt Clear
LL_RCC_CICR_PLLRDYC
PLL Ready Interrupt Clear
LL_RCC_CICR_MSIRDYC
MSI Ready Interrupt Clear
LL_RCC_CICR_HSI48RDYC
HSI48 Ready Interrupt Clear
LL_RCC_CICR_LSECSSC
LSE Clock Security System Interrupt Clear
LL_RCC_CICR_CSSC
Clock Security System Interrupt Clear
Get Flags Defines
LL_RCC_CIFR_LSIRDYF
LSI Ready Interrupt flag
LL_RCC_CIFR_LSERDYF
LSE Ready Interrupt flag
LL_RCC_CIFR_HSIRDYF
HSI Ready Interrupt flag
LL_RCC_CIFR_HSERDYF
HSE Ready Interrupt flag
LL_RCC_CIFR_PLLRDYF
PLL Ready Interrupt flag
LL_RCC_CIFR_MSIRDYF
MSI Ready Interrupt flag
LL_RCC_CIFR_HSI48RDYF
HSI48 Ready Interrupt flag
LL_RCC_CIFR_LSECSSF
LSE Clock Security System Interrupt flag
LL_RCC_CIFR_CSSF
Clock Security System Interrupt flag
LL_RCC_CSR_FWRSTF
Firewall reset flag
LL_RCC_CSR_OBLRSTF
OBL reset flag
LL_RCC_CSR_PINRSTF
PIN reset flag
LL_RCC_CSR_PORRSTF
POR/PDR reset flag
LL_RCC_CSR_SFTRSTF
Software Reset flag
LL_RCC_CSR_IWDGRSTF
Independent Watchdog reset flag
LL_RCC_CSR_WWDGRSTF
Window watchdog reset flag
LL_RCC_CSR_LPWRRSTF
Low-Power reset flag
UM1749
LL RCC Generic Driver
DocID026232 Rev 6
1109/1466
Peripheral I2C get clock source
LL_RCC_I2C1_CLKSOURCE
I2C1 clock source selection bits
LL_RCC_I2C3_CLKSOURCE
I2C3 clock source selection bits
Peripheral I2C clock source selection
LL_RCC_I2C1_CLKSOURCE_PCLK1
PCLK1 selected as I2C1 clock
LL_RCC_I2C1_CLKSOURCE_SYSCLK
SYSCLK selected as I2C1 clock
LL_RCC_I2C1_CLKSOURCE_HSI
HSI selected as I2C1 clock
LL_RCC_I2C3_CLKSOURCE_PCLK1
PCLK1 selected as I2C3 clock
LL_RCC_I2C3_CLKSOURCE_SYSCLK
SYSCLK selected as I2C3 clock
LL_RCC_I2C3_CLKSOURCE_HSI
HSI selected as I2C3 clock
IT Defines
LL_RCC_CIER_LSIRDYIE
LSI Ready Interrupt Enable
LL_RCC_CIER_LSERDYIE
LSE Ready Interrupt Enable
LL_RCC_CIER_HSIRDYIE
HSI Ready Interrupt Enable
LL_RCC_CIER_HSERDYIE
HSE Ready Interrupt Enable
LL_RCC_CIER_PLLRDYIE
PLL Ready Interrupt Enable
LL_RCC_CIER_MSIRDYIE
MSI Ready Interrupt Enable
LL_RCC_CIER_HSI48RDYIE
HSI48 Ready Interrupt Enable
LL_RCC_CIER_LSECSSIE
LSE CSS Interrupt Enable
Peripheral LPTIM get clock source
LL_RCC_LPTIM1_CLKSOURCE
LPTIM1 clock source selection bits
Peripheral LPTIM clock source selection
LL_RCC_LPTIM1_CLKSOURCE_PCLK1
PCLK1 selected as LPTIM1 clock
LL_RCC_LPTIM1_CLKSOURCE_LSI
LSI selected as LPTIM1 clock
LL_RCC_LPTIM1_CLKSOURCE_HSI
HSI selected as LPTIM1 clock
LL_RCC_LPTIM1_CLKSOURCE_LSE
LSE selected as LPTIM1 clock
Peripheral LPUART get clock source
LL_RCC_LPUART1_CLKSOURCE
LPUART1 clock source selection bits
Peripheral LPUART clock source selection
LL_RCC_LPUART1_CLKSOURCE_PCLK1
PCLK1 selected as LPUART1 clock
LL_RCC_LPUART1_CLKSOURCE_SYSCLK
SYSCLK selected as LPUART1 clock
LL_RCC_LPUART1_CLKSOURCE_HSI
HSI selected as LPUART1 clock
LL_RCC_LPUART1_CLKSOURCE_LSE
LSE selected as LPUART1 clock
LSE oscillator drive capability
LL_RCC_LSEDRIVE_LOW
Xtal mode lower driving capability
LL RCC Generic Driver
UM1749
1110/1466
DocID026232 Rev 6
LL_RCC_LSEDRIVE_MEDIUMLOW
Xtal mode medium low driving capability
LL_RCC_LSEDRIVE_MEDIUMHIGH
Xtal mode medium high driving capability
LL_RCC_LSEDRIVE_HIGH
Xtal mode higher driving capability
MCO1 SOURCE selection
LL_RCC_MCO1SOURCE_NOCLOCK
MCO output disabled, no clock on MCO
LL_RCC_MCO1SOURCE_SYSCLK
SYSCLK selection as MCO source
LL_RCC_MCO1SOURCE_HSI
HSI selection as MCO source
LL_RCC_MCO1SOURCE_MSI
MSI selection as MCO source
LL_RCC_MCO1SOURCE_HSE
HSE selection as MCO source
LL_RCC_MCO1SOURCE_LSI
LSI selection as MCO source
LL_RCC_MCO1SOURCE_LSE
LSE selection as MCO source
LL_RCC_MCO1SOURCE_HSI48
HSI48 selection as MCO source
LL_RCC_MCO1SOURCE_PLLCLK
PLLCLK selection as MCO source
MCO1 prescaler
LL_RCC_MCO1_DIV_1
MCO Clock divided by 1
LL_RCC_MCO1_DIV_2
MCO Clock divided by 2
LL_RCC_MCO1_DIV_4
MCO Clock divided by 4
LL_RCC_MCO1_DIV_8
MCO Clock divided by 8
LL_RCC_MCO1_DIV_16
MCO Clock divided by 16
MSI clock ranges
LL_RCC_MSIRANGE_0
MSI = 65.536 KHz
LL_RCC_MSIRANGE_1
MSI = 131.072 KHz
LL_RCC_MSIRANGE_2
MSI = 262.144 KHz
LL_RCC_MSIRANGE_3
MSI = 524.288 KHz
LL_RCC_MSIRANGE_4
MSI = 1.048 MHz
LL_RCC_MSIRANGE_5
MSI = 2.097 MHz
LL_RCC_MSIRANGE_6
MSI = 4.194 MHz
Oscillator Values adaptation
HSE_VALUE
Value of the HSE oscillator in Hz
HSI_VALUE
Value of the HSI oscillator in Hz
LSE_VALUE
Value of the LSE oscillator in Hz
LSI_VALUE
Value of the LSI oscillator in Hz
HSI48_VALUE
Value of the HSI48 oscillator in Hz
Peripheral clock frequency
LL_RCC_PERIPH_FREQUENCY_NO
No clock enabled for the peripheral
LL_RCC_PERIPH_FREQUENCY_NA
Frequency cannot be provided as external clock
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PLL SOURCE
LL_RCC_PLLSOURCE_HSI
HSI clock selected as PLL entry clock source
LL_RCC_PLLSOURCE_HSE
HSE clock selected as PLL entry clock source
PLL division factor
LL_RCC_PLL_DIV_2
PLL clock output = PLLVCO / 2
LL_RCC_PLL_DIV_3
PLL clock output = PLLVCO / 3
LL_RCC_PLL_DIV_4
PLL clock output = PLLVCO / 4
PLL Multiplicator factor
LL_RCC_PLL_MUL_3
PLL input clock * 3
LL_RCC_PLL_MUL_4
PLL input clock * 4
LL_RCC_PLL_MUL_6
PLL input clock * 6
LL_RCC_PLL_MUL_8
PLL input clock * 8
LL_RCC_PLL_MUL_12
PLL input clock * 12
LL_RCC_PLL_MUL_16
PLL input clock * 16
LL_RCC_PLL_MUL_24
PLL input clock * 24
LL_RCC_PLL_MUL_32
PLL input clock * 32
LL_RCC_PLL_MUL_48
PLL input clock * 48
Peripheral RNG get clock source
LL_RCC_RNG_CLKSOURCE
HSI48 RC clock source selection bit for RNG
Peripheral RNG clock source selection
LL_RCC_RNG_CLKSOURCE_PLL
PLL selected as RNG clock
LL_RCC_RNG_CLKSOURCE_HSI48
HSI48 selected as RNG clock
RTC clock source selection
LL_RCC_RTC_CLKSOURCE_NONE
No clock used as RTC clock
LL_RCC_RTC_CLKSOURCE_LSE
LSE oscillator clock used as RTC clock
LL_RCC_RTC_CLKSOURCE_LSI
LSI oscillator clock used as RTC clock
LL_RCC_RTC_CLKSOURCE_HSE
HSE oscillator clock divided by a programmable
prescaler (selection through
RTC HSE Prescaler
LL_RCC_RTC_HSE_DIV_2
HSE is divided by 2 for RTC clock
LL_RCC_RTC_HSE_DIV_4
HSE is divided by 4 for RTC clock
LL_RCC_RTC_HSE_DIV_8
HSE is divided by 8 for RTC clock
LL_RCC_RTC_HSE_DIV_16
HSE is divided by 16 for RTC clock
Wakeup from Stop and CSS backup clock selection
LL_RCC_STOP_WAKEUPCLOCK_MSI
MSI selection after wake-up from STOP
LL_RCC_STOP_WAKEUPCLOCK_HSI
HSI selection after wake-up from STOP
LL RCC Generic Driver
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AHB prescaler
LL_RCC_SYSCLK_DIV_1
SYSCLK not divided
LL_RCC_SYSCLK_DIV_2
SYSCLK divided by 2
LL_RCC_SYSCLK_DIV_4
SYSCLK divided by 4
LL_RCC_SYSCLK_DIV_8
SYSCLK divided by 8
LL_RCC_SYSCLK_DIV_16
SYSCLK divided by 16
LL_RCC_SYSCLK_DIV_64
SYSCLK divided by 64
LL_RCC_SYSCLK_DIV_128
SYSCLK divided by 128
LL_RCC_SYSCLK_DIV_256
SYSCLK divided by 256
LL_RCC_SYSCLK_DIV_512
SYSCLK divided by 512
System clock switch
LL_RCC_SYS_CLKSOURCE_MSI
MSI selection as system clock
LL_RCC_SYS_CLKSOURCE_HSI
HSI selection as system clock
LL_RCC_SYS_CLKSOURCE_HSE
HSE selection as system clock
LL_RCC_SYS_CLKSOURCE_PLL
PLL selection as system clock
System clock switch status
LL_RCC_SYS_CLKSOURCE_STATUS_MSI
MSI used as system clock
LL_RCC_SYS_CLKSOURCE_STATUS_HSI
HSI used as system clock
LL_RCC_SYS_CLKSOURCE_STATUS_HSE
HSE used as system clock
LL_RCC_SYS_CLKSOURCE_STATUS_PLL
PLL used as system clock
Peripheral USART get clock source
LL_RCC_USART1_CLKSOURCE
USART1 clock source selection bits
LL_RCC_USART2_CLKSOURCE
USART2 clock source selection bits
Peripheral USART clock source selection
LL_RCC_USART1_CLKSOURCE_PCLK2
PCLK2 selected as USART1 clock
LL_RCC_USART1_CLKSOURCE_SYSCLK
SYSCLK selected as USART1 clock
LL_RCC_USART1_CLKSOURCE_HSI
HSI selected as USART1 clock
LL_RCC_USART1_CLKSOURCE_LSE
LSE selected as USART1 clock
LL_RCC_USART2_CLKSOURCE_PCLK1
PCLK1 selected as USART2 clock
LL_RCC_USART2_CLKSOURCE_SYSCLK
SYSCLK selected as USART2 clock
LL_RCC_USART2_CLKSOURCE_HSI
HSI selected as USART2 clock
LL_RCC_USART2_CLKSOURCE_LSE
LSE selected as USART2 clock
Peripheral USB get clock source
LL_RCC_USB_CLKSOURCE
HSI48 RC clock source selection bit for USB
Peripheral USB clock source selection
LL_RCC_USB_CLKSOURCE_PLL
PLL selected as USB clock
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LL_RCC_USB_CLKSOURCE_HSI48
HSI48 selected as USB clock
Calculate frequencies
__LL_RCC_CALC_PLLCL
K_
FREQ
Description:
Helper macro to calculate the PLLCLK frequency.
Parameters:
__INPUTFREQ__: PLL Input frequency (based on
MSI/HSE/HSI)
__PLLMUL__: This parameter can be one of the
following values:
LL_RCC_PLL_MUL_3
LL_RCC_PLL_MUL_4
LL_RCC_PLL_MUL_6
LL_RCC_PLL_MUL_8
LL_RCC_PLL_MUL_12
LL_RCC_PLL_MUL_16
LL_RCC_PLL_MUL_24
LL_RCC_PLL_MUL_32
LL_RCC_PLL_MUL_48
__PLLDIV__: This parameter can be one of the
following values:
LL_RCC_PLL_DIV_2
LL_RCC_PLL_DIV_3
LL_RCC_PLL_DIV_4
Return value:
PLL: clock frequency (in Hz)
Notes:
ex: __LL_RCC_CALC_PLLCLK_FREQ (HSE_VALUE,
LL_RCC_PLL_GetMultiplicator (),
LL_RCC_PLL_GetDivider ());
__LL_RCC_CALC_HCLK_
FREQ
Description:
Helper macro to calculate the HCLK frequency.
Parameters:
__SYSCLKFREQ__: SYSCLK frequency (based on
MSI/HSE/HSI/PLLCLK)
__AHBPRESCALER__: This parameter can be one of
the following values:
LL_RCC_SYSCLK_DIV_1
LL_RCC_SYSCLK_DIV_2
LL_RCC_SYSCLK_DIV_4
LL_RCC_SYSCLK_DIV_8
LL_RCC_SYSCLK_DIV_16
LL_RCC_SYSCLK_DIV_64
LL_RCC_SYSCLK_DIV_128
LL_RCC_SYSCLK_DIV_256
LL_RCC_SYSCLK_DIV_512
Return value:
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HCLK: clock frequency (in Hz)
Notes:
: __AHBPRESCALER__ be retrieved by
LL_RCC_GetAHBPrescaler ex:
__LL_RCC_CALC_HCLK_FREQ(LL_RCC_GetAHBPre
scaler())
__LL_RCC_CALC_PCLK1
_
FREQ
Description:
Helper macro to calculate the PCLK1 frequency (ABP1)
Parameters:
__HCLKFREQ__: HCLK frequency
__APB1PRESCALER__: This parameter can be one of
the following values:
LL_RCC_APB1_DIV_1
LL_RCC_APB1_DIV_2
LL_RCC_APB1_DIV_4
LL_RCC_APB1_DIV_8
LL_RCC_APB1_DIV_16
Return value:
PCLK1: clock frequency (in Hz)
Notes:
: __APB1PRESCALER__ be retrieved by
LL_RCC_GetAPB1Prescaler ex:
__LL_RCC_CALC_PCLK1_FREQ(LL_RCC_GetAPB1P
rescaler())
__LL_RCC_CALC_PCLK2
_
FREQ
Description:
Helper macro to calculate the PCLK2 frequency (ABP2)
Parameters:
__HCLKFREQ__: HCLK frequency
__APB2PRESCALER__: This parameter can be one of
the following values:
LL_RCC_APB2_DIV_1
LL_RCC_APB2_DIV_2
LL_RCC_APB2_DIV_4
LL_RCC_APB2_DIV_8
LL_RCC_APB2_DIV_16
Return value:
PCLK2: clock frequency (in Hz)
Notes:
: __APB2PRESCALER__ be retrieved by
LL_RCC_GetAPB2Prescaler ex:
__LL_RCC_CALC_PCLK2_FREQ(LL_RCC_GetAPB2P
rescaler())
__LL_RCC_CALC_MSI_
FREQ
Description:
UM1749
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Helper macro to calculate the MSI frequency (in Hz)
Parameters:
__MSIRANGE__: This parameter can be one of the
following values:
LL_RCC_MSIRANGE_0
LL_RCC_MSIRANGE_1
LL_RCC_MSIRANGE_2
LL_RCC_MSIRANGE_3
LL_RCC_MSIRANGE_4
LL_RCC_MSIRANGE_5
LL_RCC_MSIRANGE_6
Return value:
MSI: clock frequency (in Hz)
Notes:
: __MSIRANGE__can be retrieved by
LL_RCC_MSI_GetRange ex:
__LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_GetRang
e())
Common Write and read registers Macros
LL_RCC_WriteReg
Description:
Write a value in RCC register.
Parameters:
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_RCC_ReadReg
Description:
Read a value in RCC register.
Parameters:
__REG__: Register to be read
Return value:
Register: value
LL RNG Generic Driver
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70 LL RNG Generic Driver
70.1 RNG Firmware driver API description
70.1.1 Detailed description of functions
LL_RNG_Enable
Function name
__STATIC_INLINE void LL_RNG_Enable (RNG_TypeDef *
RNGx)
Function description
Enable Random Number Generation.
Parameters
RNGx: RNG Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR RNGEN LL_RNG_Enable
LL_RNG_Disable
Function name
__STATIC_INLINE void LL_RNG_Disable (RNG_TypeDef *
RNGx)
Function description
Disable Random Number Generation.
Parameters
RNGx: RNG Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR RNGEN LL_RNG_Disable
LL_RNG_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_RNG_IsEnabled (RNG_TypeDef
* RNGx)
Function description
Check if Random Number Generator is enabled.
Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR RNGEN LL_RNG_IsEnabled
LL_RNG_IsActiveFlag_DRDY
Function name
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY
(RNG_TypeDef * RNGx)
Function description
Indicate if the RNG Data ready Flag is set or not.
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Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR DRDY LL_RNG_IsActiveFlag_DRDY
LL_RNG_IsActiveFlag_CECS
Function name
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS
(RNG_TypeDef * RNGx)
Function description
Indicate if the Clock Error Current Status Flag is set or not.
Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CECS LL_RNG_IsActiveFlag_CECS
LL_RNG_IsActiveFlag_SECS
Function name
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS
(RNG_TypeDef * RNGx)
Function description
Indicate if the Seed Error Current Status Flag is set or not.
Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR SECS LL_RNG_IsActiveFlag_SECS
LL_RNG_IsActiveFlag_CEIS
Function name
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS
(RNG_TypeDef * RNGx)
Function description
Indicate if the Clock Error Interrupt Status Flag is set or not.
Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CEIS LL_RNG_IsActiveFlag_CEIS
LL_RNG_IsActiveFlag_SEIS
Function name
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS
(RNG_TypeDef * RNGx)
Function description
Indicate if the Seed Error Interrupt Status Flag is set or not.
Parameters
RNGx: RNG Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR SEIS LL_RNG_IsActiveFlag_SEIS
LL_RNG_ClearFlag_CEIS
Function name
__STATIC_INLINE void LL_RNG_ClearFlag_CEIS
(RNG_TypeDef * RNGx)
Function description
Clear Clock Error interrupt Status (CEIS) Flag.
Parameters
RNGx: RNG Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CEIS LL_RNG_ClearFlag_CEIS
LL_RNG_ClearFlag_SEIS
Function name
__STATIC_INLINE void LL_RNG_ClearFlag_SEIS
(RNG_TypeDef * RNGx)
Function description
Clear Seed Error interrupt Status (SEIS) Flag.
Parameters
RNGx: RNG Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR SEIS LL_RNG_ClearFlag_SEIS
LL_RNG_EnableIT
Function name
__STATIC_INLINE void LL_RNG_EnableIT (RNG_TypeDef *
RNGx)
Function description
Enable Random Number Generator Interrupt (applies for either
Seed error, Clock Error or Data ready interrupts)
Parameters
RNGx: RNG Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR IE LL_RNG_EnableIT
LL_RNG_DisableIT
Function name
__STATIC_INLINE void LL_RNG_DisableIT (RNG_TypeDef *
RNGx)
Function description
Disable Random Number Generator Interrupt (applies for either
Seed error, Clock Error or Data ready interrupts)
Parameters
RNGx: RNG Instance
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Return values
None
Reference Manual to
LL API cross
reference:
CR IE LL_RNG_DisableIT
LL_RNG_IsEnabledIT
Function name
__STATIC_INLINE uint32_t LL_RNG_IsEnabledIT
(RNG_TypeDef * RNGx)
Function description
Check if Random Number Generator Interrupt is enabled (applies
for either Seed error, Clock Error or Data ready interrupts)
Parameters
RNGx: RNG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR IE LL_RNG_IsEnabledIT
LL_RNG_ReadRandData32
Function name
__STATIC_INLINE uint32_t LL_RNG_ReadRandData32
(RNG_TypeDef * RNGx)
Function description
Return32-bit Random Number value.
Parameters
RNGx: RNG Instance
Return values
Generated: 32-bit random value
Reference Manual to
LL API cross
reference:
DR RNDATA LL_RNG_ReadRandData32
LL_RNG_DeInit
Function name
ErrorStatus LL_RNG_DeInit (RNG_TypeDef * RNGx)
Function description
De-initialize RNG registers (Registers restored to their default
values).
Parameters
RNGx: RNG Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: RNG registers are de-initialized
ERROR: not applicable
70.2 RNG Firmware driver defines
70.2.1 RNG
Get Flags Defines
LL_RNG_SR_DRDY
Register contains valid random data
LL_RNG_SR_CECS
Clock error current status
LL_RNG_SR_SECS
Seed error current status
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LL_RNG_SR_CEIS
Clock error interrupt status
LL_RNG_SR_SEIS
Seed error interrupt status
IT Defines
LL_RNG_CR_IE
RNG Interrupt enable
Common Write and read registers Macros
LL_RNG_WriteReg
Description:
Write a value in RNG register.
Parameters:
__INSTANCE__: RNG Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_RNG_ReadReg
Description:
Read a value in RNG register.
Parameters:
__INSTANCE__: RNG Instance
__REG__: Register to be read
Return value:
Register: value
UM1749
LL RTC Generic Driver
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71 LL RTC Generic Driver
71.1 RTC Firmware driver registers structures
71.1.1 LL_RTC_InitTypeDef
Data Fields
uint32_t HourFormat
uint32_t AsynchPrescaler
uint32_t SynchPrescaler
Field Documentation
uint32_t LL_RTC_InitTypeDef::HourFormat
Specifies the RTC Hours Format. This parameter can be a value of
RTC_LL_EC_HOURFORMATThis feature can be modified afterwards using unitary
function LL_RTC_SetHourFormat().
uint32_t LL_RTC_InitTypeDef::AsynchPrescaler
Specifies the RTC Asynchronous Predivider value. This parameter must be a number
between Min_Data = 0x00 and Max_Data = 0x7FThis feature can be modified
afterwards using unitary function LL_RTC_SetAsynchPrescaler().
uint32_t LL_RTC_InitTypeDef::SynchPrescaler
Specifies the RTC Synchronous Predivider value. This parameter must be a number
between Min_Data = 0x00 and Max_Data = 0x7FFFThis feature can be modified
afterwards using unitary function LL_RTC_SetSynchPrescaler().
71.1.2 LL_RTC_TimeTypeDef
Data Fields
uint32_t TimeFormat
uint8_t Hours
uint8_t Minutes
uint8_t Seconds
Field Documentation
uint32_t LL_RTC_TimeTypeDef::TimeFormat
Specifies the RTC AM/PM Time. This parameter can be a value of
RTC_LL_EC_TIME_FORMATThis feature can be modified afterwards using unitary
function LL_RTC_TIME_SetFormat().
uint8_t LL_RTC_TimeTypeDef::Hours
Specifies the RTC Time Hours. This parameter must be a number between Min_Data
= 0 and Max_Data = 12 if the LL_RTC_TIME_FORMAT_PM is selected. This
parameter must be a number between Min_Data = 0 and Max_Data = 23 if the
LL_RTC_TIME_FORMAT_AM_OR_24 is selected.This feature can be modified
afterwards using unitary function LL_RTC_TIME_SetHour().
uint8_t LL_RTC_TimeTypeDef::Minutes
Specifies the RTC Time Minutes. This parameter must be a number between
Min_Data = 0 and Max_Data = 59This feature can be modified afterwards using
unitary function LL_RTC_TIME_SetMinute().
uint8_t LL_RTC_TimeTypeDef::Seconds
Specifies the RTC Time Seconds. This parameter must be a number between
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Min_Data = 0 and Max_Data = 59This feature can be modified afterwards using
unitary function LL_RTC_TIME_SetSecond().
71.1.3 LL_RTC_DateTypeDef
Data Fields
uint8_t WeekDay
uint8_t Month
uint8_t Day
uint8_t Year
Field Documentation
uint8_t LL_RTC_DateTypeDef::WeekDay
Specifies the RTC Date WeekDay. This parameter can be a value of
RTC_LL_EC_WEEKDAYThis feature can be modified afterwards using unitary
function LL_RTC_DATE_SetWeekDay().
uint8_t LL_RTC_DateTypeDef::Month
Specifies the RTC Date Month. This parameter can be a value of
RTC_LL_EC_MONTHThis feature can be modified afterwards using unitary function
LL_RTC_DATE_SetMonth().
uint8_t LL_RTC_DateTypeDef::Day
Specifies the RTC Date Day. This parameter must be a number between Min_Data =
1 and Max_Data = 31This feature can be modified afterwards using unitary function
LL_RTC_DATE_SetDay().
uint8_t LL_RTC_DateTypeDef::Year
Specifies the RTC Date Year. This parameter must be a number between Min_Data =
0 and Max_Data = 99This feature can be modified afterwards using unitary function
LL_RTC_DATE_SetYear().
71.1.4 LL_RTC_AlarmTypeDef
Data Fields
LL_RTC_TimeTypeDef AlarmTime
uint32_t AlarmMask
uint32_t AlarmDateWeekDaySel
uint8_t AlarmDateWeekDay
Field Documentation
LL_RTC_TimeTypeDef LL_RTC_AlarmTypeDef::AlarmTime
Specifies the RTC Alarm Time members.
uint32_t LL_RTC_AlarmTypeDef::AlarmMask
Specifies the RTC Alarm Masks. This parameter can be a value of
RTC_LL_EC_ALMA_MASK for ALARM A or RTC_LL_EC_ALMB_MASK for ALARM
B.This feature can be modified afterwards using unitary function
LL_RTC_ALMA_SetMask() for ALARM A or LL_RTC_ALMB_SetMask() for ALARM
B
uint32_t LL_RTC_AlarmTypeDef::AlarmDateWeekDaySel
Specifies the RTC Alarm is on day or WeekDay. This parameter can be a value of
RTC_LL_EC_ALMA_WEEKDAY_SELECTION for ALARM A or
RTC_LL_EC_ALMB_WEEKDAY_SELECTION for ALARM BThis feature can be
modified afterwards using unitary function LL_RTC_ALMA_EnableWeekday() or
LL_RTC_ALMA_DisableWeekday() for ALARM A or
LL_RTC_ALMB_EnableWeekday() or LL_RTC_ALMB_DisableWeekday() for
ALARM B
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uint8_t LL_RTC_AlarmTypeDef::AlarmDateWeekDay
Specifies the RTC Alarm Day/WeekDay. If AlarmDateWeekDaySel set to day, this
parameter must be a number between Min_Data = 1 and Max_Data = 31.This feature
can be modified afterwards using unitary function LL_RTC_ALMA_SetDay() for
ALARM A or LL_RTC_ALMB_SetDay() for ALARM B.If AlarmDateWeekDaySel set to
Weekday, this parameter can be a value of RTC_LL_EC_WEEKDAY.This feature can
be modified afterwards using unitary function LL_RTC_ALMA_SetWeekDay() for
ALARM A or LL_RTC_ALMB_SetWeekDay() for ALARM B.
71.2 RTC Firmware driver API description
71.2.1 Detailed description of functions
LL_RTC_SetHourFormat
Function name
__STATIC_INLINE void LL_RTC_SetHourFormat
(RTC_TypeDef * RTCx, uint32_t HourFormat)
Function description
Set Hours format (24 hour/day or AM/PM hour format)
Parameters
RTCx: RTC Instance
HourFormat: This parameter can be one of the following
values:
LL_RTC_HOURFORMAT_24HOUR
LL_RTC_HOURFORMAT_AMPM
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
Reference Manual to
LL API cross
reference:
CR FMT LL_RTC_SetHourFormat
LL_RTC_GetHourFormat
Function name
__STATIC_INLINE uint32_t LL_RTC_GetHourFormat
(RTC_TypeDef * RTCx)
Function description
Get Hours format (24 hour/day or AM/PM hour format)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_HOURFORMAT_24HOUR
LL_RTC_HOURFORMAT_AMPM
Reference Manual to
LL API cross
reference:
CR FMT LL_RTC_GetHourFormat
LL_RTC_SetAlarmOutEvent
Function name
__STATIC_INLINE void LL_RTC_SetAlarmOutEvent
(RTC_TypeDef * RTCx, uint32_t AlarmOutput)
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Function description
Select the flag to be routed to RTC_ALARM output.
Parameters
RTCx: RTC Instance
AlarmOutput: This parameter can be one of the following
values:
LL_RTC_ALARMOUT_DISABLE
LL_RTC_ALARMOUT_ALMA
LL_RTC_ALARMOUT_ALMB
LL_RTC_ALARMOUT_WAKEUP
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR OSEL LL_RTC_SetAlarmOutEvent
LL_RTC_GetAlarmOutEvent
Function name
__STATIC_INLINE uint32_t LL_RTC_GetAlarmOutEvent
(RTC_TypeDef * RTCx)
Function description
Get the flag to be routed to RTC_ALARM output.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_ALARMOUT_DISABLE
LL_RTC_ALARMOUT_ALMA
LL_RTC_ALARMOUT_ALMB
LL_RTC_ALARMOUT_WAKEUP
Reference Manual to
LL API cross
reference:
CR OSEL LL_RTC_GetAlarmOutEvent
LL_RTC_SetAlarmOutputType
Function name
__STATIC_INLINE void LL_RTC_SetAlarmOutputType
(RTC_TypeDef * RTCx, uint32_t Output)
Function description
Set RTC_ALARM output type (ALARM in push-pull or open-drain
output)
Parameters
RTCx: RTC Instance
Output: This parameter can be one of the following values:
LL_RTC_ALARM_OUTPUTTYPE_OPENDRAIN
LL_RTC_ALARM_OUTPUTTYPE_PUSHPULL
Return values
None
Notes
Used only when RTC_ALARM is mapped on PC13
Reference Manual to
LL API cross
reference:
OR ALARMOUTTYPE LL_RTC_SetAlarmOutputType
UM1749
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LL_RTC_GetAlarmOutputType
Function name
__STATIC_INLINE uint32_t LL_RTC_GetAlarmOutputType
(RTC_TypeDef * RTCx)
Function description
Get RTC_ALARM output type (ALARM in push-pull or open-drain
output)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_ALARM_OUTPUTTYPE_OPENDRAIN
LL_RTC_ALARM_OUTPUTTYPE_PUSHPULL
Notes
used only when RTC_ALARM is mapped on PC13
Reference Manual to
LL API cross
reference:
OR ALARMOUTTYPE LL_RTC_GetAlarmOutputType
LL_RTC_EnableInitMode
Function name
__STATIC_INLINE void LL_RTC_EnableInitMode
(RTC_TypeDef * RTCx)
Function description
Enable initialization mode.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Initialization mode is used to program time and date register
(RTC_TR and RTC_DR) and prescaler register (RTC_PRER).
Counters are stopped and start counting from the new value
when INIT is reset.
Reference Manual to
LL API cross
reference:
ISR INIT LL_RTC_EnableInitMode
LL_RTC_DisableInitMode
Function name
__STATIC_INLINE void LL_RTC_DisableInitMode
(RTC_TypeDef * RTCx)
Function description
Disable initialization mode (Free running mode)
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR INIT LL_RTC_DisableInitMode
LL_RTC_SetOutputPolarity
Function name
__STATIC_INLINE void LL_RTC_SetOutputPolarity
(RTC_TypeDef * RTCx, uint32_t Polarity)
Function description
Set Output polarity (pin is low when ALRAF/ALRBF/WUTF is
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asserted)
Parameters
RTCx: RTC Instance
Polarity: This parameter can be one of the following values:
LL_RTC_OUTPUTPOLARITY_PIN_HIGH
LL_RTC_OUTPUTPOLARITY_PIN_LOW
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR POL LL_RTC_SetOutputPolarity
LL_RTC_GetOutputPolarity
Function name
__STATIC_INLINE uint32_t LL_RTC_GetOutputPolarity
(RTC_TypeDef * RTCx)
Function description
Get Output polarity.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_OUTPUTPOLARITY_PIN_HIGH
LL_RTC_OUTPUTPOLARITY_PIN_LOW
Reference Manual to
LL API cross
reference:
CR POL LL_RTC_GetOutputPolarity
LL_RTC_EnableShadowRegBypass
Function name
__STATIC_INLINE void LL_RTC_EnableShadowRegBypass
(RTC_TypeDef * RTCx)
Function description
Enable Bypass the shadow registers.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR BYPSHAD LL_RTC_EnableShadowRegBypass
LL_RTC_DisableShadowRegBypass
Function name
__STATIC_INLINE void LL_RTC_DisableShadowRegBypass
(RTC_TypeDef * RTCx)
Function description
Disable Bypass the shadow registers.
Parameters
RTCx: RTC Instance
Return values
None
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Reference Manual to
LL API cross
reference:
CR BYPSHAD LL_RTC_DisableShadowRegBypass
LL_RTC_IsShadowRegBypassEnabled
Function name
__STATIC_INLINE uint32_t
LL_RTC_IsShadowRegBypassEnabled (RTC_TypeDef * RTCx)
Function description
Check if Shadow registers bypass is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR BYPSHAD LL_RTC_IsShadowRegBypassEnabled
LL_RTC_EnableRefClock
Function name
__STATIC_INLINE void LL_RTC_EnableRefClock
(RTC_TypeDef * RTCx)
Function description
Enable RTC_REFIN reference clock detection (50 or 60 Hz)
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
Reference Manual to
LL API cross
reference:
CR REFCKON LL_RTC_EnableRefClock
LL_RTC_DisableRefClock
Function name
__STATIC_INLINE void LL_RTC_DisableRefClock
(RTC_TypeDef * RTCx)
Function description
Disable RTC_REFIN reference clock detection (50 or 60 Hz)
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
Reference Manual to
LL API cross
reference:
CR REFCKON LL_RTC_DisableRefClock
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LL_RTC_SetAsynchPrescaler
Function name
__STATIC_INLINE void LL_RTC_SetAsynchPrescaler
(RTC_TypeDef * RTCx, uint32_t AsynchPrescaler)
Function description
Set Asynchronous prescaler factor.
Parameters
RTCx: RTC Instance
AsynchPrescaler: Value between Min_Data = 0 and
Max_Data = 0x7F
Return values
None
Reference Manual to
LL API cross
reference:
PRER PREDIV_A LL_RTC_SetAsynchPrescaler
LL_RTC_SetSynchPrescaler
Function name
__STATIC_INLINE void LL_RTC_SetSynchPrescaler
(RTC_TypeDef * RTCx, uint32_t SynchPrescaler)
Function description
Set Synchronous prescaler factor.
Parameters
RTCx: RTC Instance
SynchPrescaler: Value between Min_Data = 0 and
Max_Data = 0x7FFF
Return values
None
Reference Manual to
LL API cross
reference:
PRER PREDIV_S LL_RTC_SetSynchPrescaler
LL_RTC_GetAsynchPrescaler
Function name
__STATIC_INLINE uint32_t LL_RTC_GetAsynchPrescaler
(RTC_TypeDef * RTCx)
Function description
Get Asynchronous prescaler factor.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data = 0 and Max_Data = 0x7F
Reference Manual to
LL API cross
reference:
PRER PREDIV_A LL_RTC_GetAsynchPrescaler
LL_RTC_GetSynchPrescaler
Function name
__STATIC_INLINE uint32_t LL_RTC_GetSynchPrescaler
(RTC_TypeDef * RTCx)
Function description
Get Synchronous prescaler factor.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data = 0 and Max_Data = 0x7FFF
Reference Manual to
LL API cross
PRER PREDIV_S LL_RTC_GetSynchPrescaler
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LL_RTC_EnableWriteProtection
Function name
__STATIC_INLINE void LL_RTC_EnableWriteProtection
(RTC_TypeDef * RTCx)
Function description
Enable the write protection for RTC registers.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
WPR KEY LL_RTC_EnableWriteProtection
LL_RTC_DisableWriteProtection
Function name
__STATIC_INLINE void LL_RTC_DisableWriteProtection
(RTC_TypeDef * RTCx)
Function description
Disable the write protection for RTC registers.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
WPR KEY LL_RTC_DisableWriteProtection
LL_RTC_EnableOutRemap
Function name
__STATIC_INLINE void LL_RTC_EnableOutRemap
(RTC_TypeDef * RTCx)
Function description
Enable RTC_OUT remap.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
OR OUT_RMP LL_RTC_EnableOutRemap
LL_RTC_DisableOutRemap
Function name
__STATIC_INLINE void LL_RTC_DisableOutRemap
(RTC_TypeDef * RTCx)
Function description
Disable RTC_OUT remap.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
OR OUT_RMP LL_RTC_DisableOutRemap
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LL_RTC_TIME_SetFormat
Function name
__STATIC_INLINE void LL_RTC_TIME_SetFormat
(RTC_TypeDef * RTCx, uint32_t TimeFormat)
Function description
Set time format (AM/24-hour or PM notation)
Parameters
RTCx: RTC Instance
TimeFormat: This parameter can be one of the following
values:
LL_RTC_TIME_FORMAT_AM_OR_24
LL_RTC_TIME_FORMAT_PM
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
Reference Manual to
LL API cross
reference:
TR PM LL_RTC_TIME_SetFormat
LL_RTC_TIME_GetFormat
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_GetFormat
(RTC_TypeDef * RTCx)
Function description
Get time format (AM or PM notation)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_TIME_FORMAT_AM_OR_24
LL_RTC_TIME_FORMAT_PM
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
Read either RTC_SSR or RTC_TR locks the values in the
higher-order calendar shadow registers until RTC_DR is read
(LL_RTC_ReadReg(RTC, DR)).
Reference Manual to
LL API cross
reference:
TR PM LL_RTC_TIME_GetFormat
LL_RTC_TIME_SetHour
Function name
__STATIC_INLINE void LL_RTC_TIME_SetHour (RTC_TypeDef
* RTCx, uint32_t Hours)
Function description
Set Hours in BCD format.
Parameters
RTCx: RTC Instance
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
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function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert hour from binary to BCD format
Reference Manual to
LL API cross
reference:
TR HT LL_RTC_TIME_SetHour
TR HU LL_RTC_TIME_SetHour
LL_RTC_TIME_GetHour
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_GetHour
(RTC_TypeDef * RTCx)
Function description
Get Hours in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x12 or
between Min_Data=0x00 and Max_Data=0x23
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
Read either RTC_SSR or RTC_TR locks the values in the
higher-order calendar shadow registers until RTC_DR is read
(LL_RTC_ReadReg(RTC, DR)).
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert hour from BCD to Binary format
Reference Manual to
LL API cross
reference:
TR HT LL_RTC_TIME_GetHour
TR HU LL_RTC_TIME_GetHour
LL_RTC_TIME_SetMinute
Function name
__STATIC_INLINE void LL_RTC_TIME_SetMinute
(RTC_TypeDef * RTCx, uint32_t Minutes)
Function description
Set Minutes in BCD format.
Parameters
RTCx: RTC Instance
Minutes: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Minutes from binary to BCD format
Reference Manual to
LL API cross
reference:
TR MNT LL_RTC_TIME_SetMinute
TR MNU LL_RTC_TIME_SetMinute
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LL_RTC_TIME_GetMinute
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_GetMinute
(RTC_TypeDef * RTCx)
Function description
Get Minutes in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
Read either RTC_SSR or RTC_TR locks the values in the
higher-order calendar shadow registers until RTC_DR is read
(LL_RTC_ReadReg(RTC, DR)).
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert minute from BCD to Binary format
Reference Manual to
LL API cross
reference:
TR MNT LL_RTC_TIME_GetMinute
TR MNU LL_RTC_TIME_GetMinute
LL_RTC_TIME_SetSecond
Function name
__STATIC_INLINE void LL_RTC_TIME_SetSecond
(RTC_TypeDef * RTCx, uint32_t Seconds)
Function description
Set Seconds in BCD format.
Parameters
RTCx: RTC Instance
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Seconds from binary to BCD format
Reference Manual to
LL API cross
reference:
TR ST LL_RTC_TIME_SetSecond
TR SU LL_RTC_TIME_SetSecond
LL_RTC_TIME_GetSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_GetSecond
(RTC_TypeDef * RTCx)
Function description
Get Seconds in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
Read either RTC_SSR or RTC_TR locks the values in the
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higher-order calendar shadow registers until RTC_DR is read
(LL_RTC_ReadReg(RTC, DR)).
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Seconds from BCD to Binary format
Reference Manual to
LL API cross
reference:
TR ST LL_RTC_TIME_GetSecond
TR SU LL_RTC_TIME_GetSecond
LL_RTC_TIME_Config
Function name
__STATIC_INLINE void LL_RTC_TIME_Config (RTC_TypeDef *
RTCx, uint32_t Format12_24, uint32_t Hours, uint32_t
Minutes, uint32_t Seconds)
Function description
Set time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Format12_24: This parameter can be one of the following
values:
LL_RTC_TIME_FORMAT_AM_OR_24
LL_RTC_TIME_FORMAT_PM
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Minutes: Value between Min_Data=0x00 and
Max_Data=0x59
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
It can be written in initialization mode only
(LL_RTC_EnableInitMode function)
TimeFormat and Hours should follow the same format
Reference Manual to
LL API cross
reference:
TR PM LL_RTC_TIME_Config
TR HT LL_RTC_TIME_Config
TR HU LL_RTC_TIME_Config
TR MNT LL_RTC_TIME_Config
TR MNU LL_RTC_TIME_Config
TR ST LL_RTC_TIME_Config
TR SU LL_RTC_TIME_Config
LL_RTC_TIME_Get
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_Get (RTC_TypeDef
* RTCx)
Function description
Get time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of hours, minutes and seconds (Format:
0x00HHMMSS).
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
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Read either RTC_SSR or RTC_TR locks the values in the
higher-order calendar shadow registers until RTC_DR is read
(LL_RTC_ReadReg(RTC, DR)).
helper macros __LL_RTC_GET_HOUR,
__LL_RTC_GET_MINUTE and __LL_RTC_GET_SECOND
are available to get independently each parameter.
Reference Manual to
LL API cross
reference:
TR HT LL_RTC_TIME_Get
TR HU LL_RTC_TIME_Get
TR MNT LL_RTC_TIME_Get
TR MNU LL_RTC_TIME_Get
TR ST LL_RTC_TIME_Get
TR SU LL_RTC_TIME_Get
LL_RTC_TIME_EnableDayLightStore
Function name
__STATIC_INLINE void LL_RTC_TIME_EnableDayLightStore
(RTC_TypeDef * RTCx)
Function description
Memorize whether the daylight saving time change has been
performed.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR BCK LL_RTC_TIME_EnableDayLightStore
LL_RTC_TIME_DisableDayLightStore
Function name
__STATIC_INLINE void LL_RTC_TIME_DisableDayLightStore
(RTC_TypeDef * RTCx)
Function description
Disable memorization whether the daylight saving time change
has been performed.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR BCK LL_RTC_TIME_DisableDayLightStore
LL_RTC_TIME_IsDayLightStoreEnabled
Function name
__STATIC_INLINE uint32_t
LL_RTC_TIME_IsDayLightStoreEnabled (RTC_TypeDef *
RTCx)
Function description
Check if RTC Day Light Saving stored operation has been enabled
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or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR BCK LL_RTC_TIME_IsDayLightStoreEnabled
LL_RTC_TIME_DecHour
Function name
__STATIC_INLINE void LL_RTC_TIME_DecHour
(RTC_TypeDef * RTCx)
Function description
Subtract 1 hour (winter time change)
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR SUB1H LL_RTC_TIME_DecHour
LL_RTC_TIME_IncHour
Function name
__STATIC_INLINE void LL_RTC_TIME_IncHour (RTC_TypeDef
* RTCx)
Function description
Add 1 hour (summer time change)
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ADD1H LL_RTC_TIME_IncHour
LL_RTC_TIME_GetSubSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_TIME_GetSubSecond
(RTC_TypeDef * RTCx)
Function description
Get Sub second value in the synchronous prescaler counter.
Parameters
RTCx: RTC Instance
Return values
Sub: second value (number between 0 and 65535)
Notes
You can use both SubSeconds value and SecondFraction
(PREDIV_S through LL_RTC_GetSynchPrescaler function)
terms returned to convert Calendar SubSeconds value in
second fraction ratio with time unit following generic formula:
==> Seconds fraction ratio * time_unit= [(SecondFraction-
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SubSeconds)/(SecondFraction+1)] * time_unit This
conversion can be performed only if no shift operation is
pending (ie. SHFP=0) when PREDIV_S >= SS.
Reference Manual to
LL API cross
reference:
SSR SS LL_RTC_TIME_GetSubSecond
LL_RTC_TIME_Synchronize
Function name
__STATIC_INLINE void LL_RTC_TIME_Synchronize
(RTC_TypeDef * RTCx, uint32_t ShiftSecond, uint32_t
Fraction)
Function description
Synchronize to a remote clock with a high degree of precision.
Parameters
RTCx: RTC Instance
ShiftSecond: This parameter can be one of the following
values:
LL_RTC_SHIFT_SECOND_DELAY
LL_RTC_SHIFT_SECOND_ADVANCE
Fraction: Number of Seconds Fractions (any value from 0 to
0x7FFF)
Return values
None
Notes
This operation effectively subtracts from (delays) or advance
the clock of a fraction of a second.
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
When REFCKON is set, firmware must not write to Shift
control register.
Reference Manual to
LL API cross
reference:
SHIFTR ADD1S LL_RTC_TIME_Synchronize
SHIFTR SUBFS LL_RTC_TIME_Synchronize
LL_RTC_DATE_SetYear
Function name
__STATIC_INLINE void LL_RTC_DATE_SetYear
(RTC_TypeDef * RTCx, uint32_t Year)
Function description
Set Year in BCD format.
Parameters
RTCx: RTC Instance
Year: Value between Min_Data=0x00 and Max_Data=0x99
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Year from binary to BCD format
Reference Manual to
LL API cross
reference:
DR YT LL_RTC_DATE_SetYear
DR YU LL_RTC_DATE_SetYear
LL_RTC_DATE_GetYear
Function name
__STATIC_INLINE uint32_t LL_RTC_DATE_GetYear
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(RTC_TypeDef * RTCx)
Function description
Get Year in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x99
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Year from BCD to Binary format
Reference Manual to
LL API cross
reference:
DR YT LL_RTC_DATE_GetYear
DR YU LL_RTC_DATE_GetYear
LL_RTC_DATE_SetWeekDay
Function name
__STATIC_INLINE void LL_RTC_DATE_SetWeekDay
(RTC_TypeDef * RTCx, uint32_t WeekDay)
Function description
Set Week day.
Parameters
RTCx: RTC Instance
WeekDay: This parameter can be one of the following
values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Return values
None
Reference Manual to
LL API cross
reference:
DR WDU LL_RTC_DATE_SetWeekDay
LL_RTC_DATE_GetWeekDay
Function name
__STATIC_INLINE uint32_t LL_RTC_DATE_GetWeekDay
(RTC_TypeDef * RTCx)
Function description
Get Week day.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
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Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
Reference Manual to
LL API cross
reference:
DR WDU LL_RTC_DATE_GetWeekDay
LL_RTC_DATE_SetMonth
Function name
__STATIC_INLINE void LL_RTC_DATE_SetMonth
(RTC_TypeDef * RTCx, uint32_t Month)
Function description
Set Month in BCD format.
Parameters
RTCx: RTC Instance
Month: This parameter can be one of the following values:
LL_RTC_MONTH_JANUARY
LL_RTC_MONTH_FEBRUARY
LL_RTC_MONTH_MARCH
LL_RTC_MONTH_APRIL
LL_RTC_MONTH_MAY
LL_RTC_MONTH_JUNE
LL_RTC_MONTH_JULY
LL_RTC_MONTH_AUGUST
LL_RTC_MONTH_SEPTEMBER
LL_RTC_MONTH_OCTOBER
LL_RTC_MONTH_NOVEMBER
LL_RTC_MONTH_DECEMBER
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Month from binary to BCD format
Reference Manual to
LL API cross
reference:
DR MT LL_RTC_DATE_SetMonth
DR MU LL_RTC_DATE_SetMonth
LL_RTC_DATE_GetMonth
Function name
__STATIC_INLINE uint32_t LL_RTC_DATE_GetMonth
(RTC_TypeDef * RTCx)
Function description
Get Month in BCD format.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_MONTH_JANUARY
LL_RTC_MONTH_FEBRUARY
LL_RTC_MONTH_MARCH
LL_RTC_MONTH_APRIL
LL_RTC_MONTH_MAY
LL_RTC_MONTH_JUNE
LL_RTC_MONTH_JULY
LL_RTC_MONTH_AUGUST
LL_RTC_MONTH_SEPTEMBER
LL_RTC_MONTH_OCTOBER
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LL_RTC_MONTH_NOVEMBER
LL_RTC_MONTH_DECEMBER
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Month from BCD to Binary format
Reference Manual to
LL API cross
reference:
DR MT LL_RTC_DATE_GetMonth
DR MU LL_RTC_DATE_GetMonth
LL_RTC_DATE_SetDay
Function name
__STATIC_INLINE void LL_RTC_DATE_SetDay (RTC_TypeDef
* RTCx, uint32_t Day)
Function description
Set Day in BCD format.
Parameters
RTCx: RTC Instance
Day: Value between Min_Data=0x01 and Max_Data=0x31
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Day from binary to BCD format
Reference Manual to
LL API cross
reference:
DR DT LL_RTC_DATE_SetDay
DR DU LL_RTC_DATE_SetDay
LL_RTC_DATE_GetDay
Function name
__STATIC_INLINE uint32_t LL_RTC_DATE_GetDay
(RTC_TypeDef * RTCx)
Function description
Get Day in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x31
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Day from BCD to Binary format
Reference Manual to
LL API cross
reference:
DR DT LL_RTC_DATE_GetDay
DR DU LL_RTC_DATE_GetDay
LL_RTC_DATE_Config
Function name
__STATIC_INLINE void LL_RTC_DATE_Config (RTC_TypeDef
* RTCx, uint32_t WeekDay, uint32_t Day, uint32_t Month,
uint32_t Year)
Function description
Set date (WeekDay, Day, Month and Year) in BCD format.
Parameters
RTCx: RTC Instance
WeekDay: This parameter can be one of the following
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values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Day: Value between Min_Data=0x01 and Max_Data=0x31
Month: This parameter can be one of the following values:
LL_RTC_MONTH_JANUARY
LL_RTC_MONTH_FEBRUARY
LL_RTC_MONTH_MARCH
LL_RTC_MONTH_APRIL
LL_RTC_MONTH_MAY
LL_RTC_MONTH_JUNE
LL_RTC_MONTH_JULY
LL_RTC_MONTH_AUGUST
LL_RTC_MONTH_SEPTEMBER
LL_RTC_MONTH_OCTOBER
LL_RTC_MONTH_NOVEMBER
LL_RTC_MONTH_DECEMBER
Year: Value between Min_Data=0x00 and Max_Data=0x99
Return values
None
Reference Manual to
LL API cross
reference:
DR WDU LL_RTC_DATE_Config
DR MT LL_RTC_DATE_Config
DR MU LL_RTC_DATE_Config
DR DT LL_RTC_DATE_Config
DR DU LL_RTC_DATE_Config
DR YT LL_RTC_DATE_Config
DR YU LL_RTC_DATE_Config
LL_RTC_DATE_Get
Function name
__STATIC_INLINE uint32_t LL_RTC_DATE_Get (RTC_TypeDef
* RTCx)
Function description
Get date (WeekDay, Day, Month and Year) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of WeekDay, Day, Month and Year (Format:
0xWWDDMMYY).
Notes
if shadow mode is disabled (BYPSHAD=0), need to check if
RSF flag is set before reading this bit
helper macros __LL_RTC_GET_WEEKDAY,
__LL_RTC_GET_YEAR, __LL_RTC_GET_MONTH, and
__LL_RTC_GET_DAY are available to get independently
each parameter.
Reference Manual to
LL API cross
reference:
DR WDU LL_RTC_DATE_Get
DR MT LL_RTC_DATE_Get
DR MU LL_RTC_DATE_Get
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DR DT LL_RTC_DATE_Get
DR DU LL_RTC_DATE_Get
DR YT LL_RTC_DATE_Get
DR YU LL_RTC_DATE_Get
LL_RTC_ALMA_Enable
Function name
__STATIC_INLINE void LL_RTC_ALMA_Enable (RTC_TypeDef
* RTCx)
Function description
Enable Alarm A.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRAE LL_RTC_ALMA_Enable
LL_RTC_ALMA_Disable
Function name
__STATIC_INLINE void LL_RTC_ALMA_Disable
(RTC_TypeDef * RTCx)
Function description
Disable Alarm A.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRAE LL_RTC_ALMA_Disable
LL_RTC_ALMA_SetMask
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Specify the Alarm A masks.
Parameters
RTCx: RTC Instance
Mask: This parameter can be a combination of the following
values:
LL_RTC_ALMA_MASK_NONE
LL_RTC_ALMA_MASK_DATEWEEKDAY
LL_RTC_ALMA_MASK_HOURS
LL_RTC_ALMA_MASK_MINUTES
LL_RTC_ALMA_MASK_SECONDS
LL_RTC_ALMA_MASK_ALL
Return values
None
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Reference Manual to
LL API cross
reference:
ALRMAR MSK4 LL_RTC_ALMA_SetMask
ALRMAR MSK3 LL_RTC_ALMA_SetMask
ALRMAR MSK2 LL_RTC_ALMA_SetMask
ALRMAR MSK1 LL_RTC_ALMA_SetMask
LL_RTC_ALMA_GetMask
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetMask
(RTC_TypeDef * RTCx)
Function description
Get the Alarm A masks.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be can be a combination of the
following values:
LL_RTC_ALMA_MASK_NONE
LL_RTC_ALMA_MASK_DATEWEEKDAY
LL_RTC_ALMA_MASK_HOURS
LL_RTC_ALMA_MASK_MINUTES
LL_RTC_ALMA_MASK_SECONDS
LL_RTC_ALMA_MASK_ALL
Reference Manual to
LL API cross
reference:
ALRMAR MSK4 LL_RTC_ALMA_GetMask
ALRMAR MSK3 LL_RTC_ALMA_GetMask
ALRMAR MSK2 LL_RTC_ALMA_GetMask
ALRMAR MSK1 LL_RTC_ALMA_GetMask
LL_RTC_ALMA_EnableWeekday
Function name
__STATIC_INLINE void LL_RTC_ALMA_EnableWeekday
(RTC_TypeDef * RTCx)
Function description
Enable AlarmA Week day selection (DU[3:0] represents the week
day.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ALRMAR WDSEL LL_RTC_ALMA_EnableWeekday
LL_RTC_ALMA_DisableWeekday
Function name
__STATIC_INLINE void LL_RTC_ALMA_DisableWeekday
(RTC_TypeDef * RTCx)
Function description
Disable AlarmA Week day selection (DU[3:0] represents the date )
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ALRMAR WDSEL LL_RTC_ALMA_DisableWeekday
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LL_RTC_ALMA_SetDay
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetDay (RTC_TypeDef
* RTCx, uint32_t Day)
Function description
Set ALARM A Day in BCD format.
Parameters
RTCx: RTC Instance
Day: Value between Min_Data=0x01 and Max_Data=0x31
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Day from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMAR DT LL_RTC_ALMA_SetDay
ALRMAR DU LL_RTC_ALMA_SetDay
LL_RTC_ALMA_GetDay
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetDay
(RTC_TypeDef * RTCx)
Function description
Get ALARM A Day in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x31
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Day from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMAR DT LL_RTC_ALMA_GetDay
ALRMAR DU LL_RTC_ALMA_GetDay
LL_RTC_ALMA_SetWeekDay
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetWeekDay
(RTC_TypeDef * RTCx, uint32_t WeekDay)
Function description
Set ALARM A Weekday.
Parameters
RTCx: RTC Instance
WeekDay: This parameter can be one of the following
values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Return values
None
Reference Manual to
LL API cross
reference:
ALRMAR DU LL_RTC_ALMA_SetWeekDay
LL RTC Generic Driver
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LL_RTC_ALMA_GetWeekDay
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetWeekDay
(RTC_TypeDef * RTCx)
Function description
Get ALARM A Weekday.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Reference Manual to
LL API cross
reference:
ALRMAR DU LL_RTC_ALMA_GetWeekDay
LL_RTC_ALMA_SetTimeFormat
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetTimeFormat
(RTC_TypeDef * RTCx, uint32_t TimeFormat)
Function description
Set Alarm A time format (AM/24-hour or PM notation)
Parameters
RTCx: RTC Instance
TimeFormat: This parameter can be one of the following
values:
LL_RTC_ALMA_TIME_FORMAT_AM
LL_RTC_ALMA_TIME_FORMAT_PM
Return values
None
Reference Manual to
LL API cross
reference:
ALRMAR PM LL_RTC_ALMA_SetTimeFormat
LL_RTC_ALMA_GetTimeFormat
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetTimeFormat
(RTC_TypeDef * RTCx)
Function description
Get Alarm A time format (AM or PM notation)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_ALMA_TIME_FORMAT_AM
LL_RTC_ALMA_TIME_FORMAT_PM
Reference Manual to
LL API cross
reference:
ALRMAR PM LL_RTC_ALMA_GetTimeFormat
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LL_RTC_ALMA_SetHour
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetHour
(RTC_TypeDef * RTCx, uint32_t Hours)
Function description
Set ALARM A Hours in BCD format.
Parameters
RTCx: RTC Instance
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Hours from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMAR HT LL_RTC_ALMA_SetHour
ALRMAR HU LL_RTC_ALMA_SetHour
LL_RTC_ALMA_GetHour
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetHour
(RTC_TypeDef * RTCx)
Function description
Get ALARM A Hours in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x12 or
between Min_Data=0x00 and Max_Data=0x23
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Hours from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMAR HT LL_RTC_ALMA_GetHour
ALRMAR HU LL_RTC_ALMA_GetHour
LL_RTC_ALMA_SetMinute
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetMinute
(RTC_TypeDef * RTCx, uint32_t Minutes)
Function description
Set ALARM A Minutes in BCD format.
Parameters
RTCx: RTC Instance
Minutes: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Minutes from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMAR MNT LL_RTC_ALMA_SetMinute
ALRMAR MNU LL_RTC_ALMA_SetMinute
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LL_RTC_ALMA_GetMinute
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetMinute
(RTC_TypeDef * RTCx)
Function description
Get ALARM A Minutes in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Minutes from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMAR MNT LL_RTC_ALMA_GetMinute
ALRMAR MNU LL_RTC_ALMA_GetMinute
LL_RTC_ALMA_SetSecond
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetSecond
(RTC_TypeDef * RTCx, uint32_t Seconds)
Function description
Set ALARM A Seconds in BCD format.
Parameters
RTCx: RTC Instance
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Seconds from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMAR ST LL_RTC_ALMA_SetSecond
ALRMAR SU LL_RTC_ALMA_SetSecond
LL_RTC_ALMA_GetSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetSecond
(RTC_TypeDef * RTCx)
Function description
Get ALARM A Seconds in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Seconds from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMAR ST LL_RTC_ALMA_GetSecond
ALRMAR SU LL_RTC_ALMA_GetSecond
LL_RTC_ALMA_ConfigTime
Function name
__STATIC_INLINE void LL_RTC_ALMA_ConfigTime
(RTC_TypeDef * RTCx, uint32_t Format12_24, uint32_t Hours,
uint32_t Minutes, uint32_t Seconds)
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Function description
Set Alarm A Time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Format12_24: This parameter can be one of the following
values:
LL_RTC_ALMA_TIME_FORMAT_AM
LL_RTC_ALMA_TIME_FORMAT_PM
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Minutes: Value between Min_Data=0x00 and
Max_Data=0x59
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Reference Manual to
LL API cross
reference:
ALRMAR PM LL_RTC_ALMA_ConfigTime
ALRMAR HT LL_RTC_ALMA_ConfigTime
ALRMAR HU LL_RTC_ALMA_ConfigTime
ALRMAR MNT LL_RTC_ALMA_ConfigTime
ALRMAR MNU LL_RTC_ALMA_ConfigTime
ALRMAR ST LL_RTC_ALMA_ConfigTime
ALRMAR SU LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetTime
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetTime
(RTC_TypeDef * RTCx)
Function description
Get Alarm B Time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of hours, minutes and seconds.
Notes
helper macros __LL_RTC_GET_HOUR,
__LL_RTC_GET_MINUTE and __LL_RTC_GET_SECOND
are available to get independently each parameter.
Reference Manual to
LL API cross
reference:
ALRMAR HT LL_RTC_ALMA_GetTime
ALRMAR HU LL_RTC_ALMA_GetTime
ALRMAR MNT LL_RTC_ALMA_GetTime
ALRMAR MNU LL_RTC_ALMA_GetTime
ALRMAR ST LL_RTC_ALMA_GetTime
ALRMAR SU LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetSubSecondMask
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetSubSecondMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Set Alarm A Mask the most-significant bits starting at this bit.
Parameters
RTCx: RTC Instance
Mask: Value between Min_Data=0x00 and Max_Data=0xF
Return values
None
Notes
This register can be written only when ALRAE is reset in
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RTC_CR register, or in initialization mode.
Reference Manual to
LL API cross
reference:
ALRMASSR MASKSS LL_RTC_ALMA_SetSubSecondMask
LL_RTC_ALMA_GetSubSecondMask
Function name
__STATIC_INLINE uint32_t
LL_RTC_ALMA_GetSubSecondMask (RTC_TypeDef * RTCx)
Function description
Get Alarm A Mask the most-significant bits starting at this bit.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xF
Reference Manual to
LL API cross
reference:
ALRMASSR MASKSS LL_RTC_ALMA_GetSubSecondMask
LL_RTC_ALMA_SetSubSecond
Function name
__STATIC_INLINE void LL_RTC_ALMA_SetSubSecond
(RTC_TypeDef * RTCx, uint32_t Subsecond)
Function description
Set Alarm A Sub seconds value.
Parameters
RTCx: RTC Instance
Subsecond: Value between Min_Data=0x00 and
Max_Data=0x7FFF
Return values
None
Reference Manual to
LL API cross
reference:
ALRMASSR SS LL_RTC_ALMA_SetSubSecond
LL_RTC_ALMA_GetSubSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMA_GetSubSecond
(RTC_TypeDef * RTCx)
Function description
Get Alarm A Sub seconds value.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x7FFF
Reference Manual to
LL API cross
reference:
ALRMASSR SS LL_RTC_ALMA_GetSubSecond
LL_RTC_ALMB_Enable
Function name
__STATIC_INLINE void LL_RTC_ALMB_Enable (RTC_TypeDef
* RTCx)
Function description
Enable Alarm B.
Parameters
RTCx: RTC Instance
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Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRBE LL_RTC_ALMB_Enable
LL_RTC_ALMB_Disable
Function name
__STATIC_INLINE void LL_RTC_ALMB_Disable
(RTC_TypeDef * RTCx)
Function description
Disable Alarm B.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRBE LL_RTC_ALMB_Disable
LL_RTC_ALMB_SetMask
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Specify the Alarm B masks.
Parameters
RTCx: RTC Instance
Mask: This parameter can be a combination of the following
values:
LL_RTC_ALMB_MASK_NONE
LL_RTC_ALMB_MASK_DATEWEEKDAY
LL_RTC_ALMB_MASK_HOURS
LL_RTC_ALMB_MASK_MINUTES
LL_RTC_ALMB_MASK_SECONDS
LL_RTC_ALMB_MASK_ALL
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBR MSK4 LL_RTC_ALMB_SetMask
ALRMBR MSK3 LL_RTC_ALMB_SetMask
ALRMBR MSK2 LL_RTC_ALMB_SetMask
ALRMBR MSK1 LL_RTC_ALMB_SetMask
LL_RTC_ALMB_GetMask
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetMask
(RTC_TypeDef * RTCx)
Function description
Get the Alarm B masks.
Parameters
RTCx: RTC Instance
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Return values
Returned: value can be can be a combination of the
following values:
LL_RTC_ALMB_MASK_NONE
LL_RTC_ALMB_MASK_DATEWEEKDAY
LL_RTC_ALMB_MASK_HOURS
LL_RTC_ALMB_MASK_MINUTES
LL_RTC_ALMB_MASK_SECONDS
LL_RTC_ALMB_MASK_ALL
Reference Manual to
LL API cross
reference:
ALRMBR MSK4 LL_RTC_ALMB_GetMask
ALRMBR MSK3 LL_RTC_ALMB_GetMask
ALRMBR MSK2 LL_RTC_ALMB_GetMask
ALRMBR MSK1 LL_RTC_ALMB_GetMask
LL_RTC_ALMB_EnableWeekday
Function name
__STATIC_INLINE void LL_RTC_ALMB_EnableWeekday
(RTC_TypeDef * RTCx)
Function description
Enable AlarmB Week day selection (DU[3:0] represents the week
day.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBR WDSEL LL_RTC_ALMB_EnableWeekday
LL_RTC_ALMB_DisableWeekday
Function name
__STATIC_INLINE void LL_RTC_ALMB_DisableWeekday
(RTC_TypeDef * RTCx)
Function description
Disable AlarmB Week day selection (DU[3:0] represents the date )
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBR WDSEL LL_RTC_ALMB_DisableWeekday
LL_RTC_ALMB_SetDay
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetDay (RTC_TypeDef
* RTCx, uint32_t Day)
Function description
Set ALARM B Day in BCD format.
Parameters
RTCx: RTC Instance
Day: Value between Min_Data=0x01 and Max_Data=0x31
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Day from binary to BCD format
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Reference Manual to
LL API cross
reference:
ALRMBR DT LL_RTC_ALMB_SetDay
ALRMBR DU LL_RTC_ALMB_SetDay
LL_RTC_ALMB_GetDay
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetDay
(RTC_TypeDef * RTCx)
Function description
Get ALARM B Day in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x31
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Day from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMBR DT LL_RTC_ALMB_GetDay
ALRMBR DU LL_RTC_ALMB_GetDay
LL_RTC_ALMB_SetWeekDay
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetWeekDay
(RTC_TypeDef * RTCx, uint32_t WeekDay)
Function description
Set ALARM B Weekday.
Parameters
RTCx: RTC Instance
WeekDay: This parameter can be one of the following
values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBR DU LL_RTC_ALMB_SetWeekDay
LL_RTC_ALMB_GetWeekDay
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetWeekDay
(RTC_TypeDef * RTCx)
Function description
Get ALARM B Weekday.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
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LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Reference Manual to
LL API cross
reference:
ALRMBR DU LL_RTC_ALMB_GetWeekDay
LL_RTC_ALMB_SetTimeFormat
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetTimeFormat
(RTC_TypeDef * RTCx, uint32_t TimeFormat)
Function description
Set ALARM B time format (AM/24-hour or PM notation)
Parameters
RTCx: RTC Instance
TimeFormat: This parameter can be one of the following
values:
LL_RTC_ALMB_TIME_FORMAT_AM
LL_RTC_ALMB_TIME_FORMAT_PM
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBR PM LL_RTC_ALMB_SetTimeFormat
LL_RTC_ALMB_GetTimeFormat
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetTimeFormat
(RTC_TypeDef * RTCx)
Function description
Get ALARM B time format (AM or PM notation)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_ALMB_TIME_FORMAT_AM
LL_RTC_ALMB_TIME_FORMAT_PM
Reference Manual to
LL API cross
reference:
ALRMBR PM LL_RTC_ALMB_GetTimeFormat
LL_RTC_ALMB_SetHour
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetHour
(RTC_TypeDef * RTCx, uint32_t Hours)
Function description
Set ALARM B Hours in BCD format.
Parameters
RTCx: RTC Instance
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Hours from binary to BCD format
Reference Manual to
ALRMBR HT LL_RTC_ALMB_SetHour
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LL API cross
reference:
ALRMBR HU LL_RTC_ALMB_SetHour
LL_RTC_ALMB_GetHour
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetHour
(RTC_TypeDef * RTCx)
Function description
Get ALARM B Hours in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x12 or
between Min_Data=0x00 and Max_Data=0x23
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Hours from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMBR HT LL_RTC_ALMB_GetHour
ALRMBR HU LL_RTC_ALMB_GetHour
LL_RTC_ALMB_SetMinute
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetMinute
(RTC_TypeDef * RTCx, uint32_t Minutes)
Function description
Set ALARM B Minutes in BCD format.
Parameters
RTCx: RTC Instance
Minutes: between Min_Data=0x00 and Max_Data=0x59
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Minutes from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMBR MNT LL_RTC_ALMB_SetMinute
ALRMBR MNU LL_RTC_ALMB_SetMinute
LL_RTC_ALMB_GetMinute
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetMinute
(RTC_TypeDef * RTCx)
Function description
Get ALARM B Minutes in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Minutes from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMBR MNT LL_RTC_ALMB_GetMinute
ALRMBR MNU LL_RTC_ALMB_GetMinute
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LL_RTC_ALMB_SetSecond
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetSecond
(RTC_TypeDef * RTCx, uint32_t Seconds)
Function description
Set ALARM B Seconds in BCD format.
Parameters
RTCx: RTC Instance
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Notes
helper macro __LL_RTC_CONVERT_BIN2BCD is available
to convert Seconds from binary to BCD format
Reference Manual to
LL API cross
reference:
ALRMBR ST LL_RTC_ALMB_SetSecond
ALRMBR SU LL_RTC_ALMB_SetSecond
LL_RTC_ALMB_GetSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetSecond
(RTC_TypeDef * RTCx)
Function description
Get ALARM B Seconds in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Seconds from BCD to Binary format
Reference Manual to
LL API cross
reference:
ALRMBR ST LL_RTC_ALMB_GetSecond
ALRMBR SU LL_RTC_ALMB_GetSecond
LL_RTC_ALMB_ConfigTime
Function name
__STATIC_INLINE void LL_RTC_ALMB_ConfigTime
(RTC_TypeDef * RTCx, uint32_t Format12_24, uint32_t Hours,
uint32_t Minutes, uint32_t Seconds)
Function description
Set Alarm B Time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Format12_24: This parameter can be one of the following
values:
LL_RTC_ALMB_TIME_FORMAT_AM
LL_RTC_ALMB_TIME_FORMAT_PM
Hours: Value between Min_Data=0x01 and Max_Data=0x12
or between Min_Data=0x00 and Max_Data=0x23
Minutes: Value between Min_Data=0x00 and
Max_Data=0x59
Seconds: Value between Min_Data=0x00 and
Max_Data=0x59
Return values
None
Reference Manual to
ALRMBR PM LL_RTC_ALMB_ConfigTime
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LL API cross
reference:
ALRMBR HT LL_RTC_ALMB_ConfigTime
ALRMBR HU LL_RTC_ALMB_ConfigTime
ALRMBR MNT LL_RTC_ALMB_ConfigTime
ALRMBR MNU LL_RTC_ALMB_ConfigTime
ALRMBR ST LL_RTC_ALMB_ConfigTime
ALRMBR SU LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetTime
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetTime
(RTC_TypeDef * RTCx)
Function description
Get Alarm B Time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of hours, minutes and seconds.
Notes
helper macros __LL_RTC_GET_HOUR,
__LL_RTC_GET_MINUTE and __LL_RTC_GET_SECOND
are available to get independently each parameter.
Reference Manual to
LL API cross
reference:
ALRMBR HT LL_RTC_ALMB_GetTime
ALRMBR HU LL_RTC_ALMB_GetTime
ALRMBR MNT LL_RTC_ALMB_GetTime
ALRMBR MNU LL_RTC_ALMB_GetTime
ALRMBR ST LL_RTC_ALMB_GetTime
ALRMBR SU LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetSubSecondMask
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetSubSecondMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Set Alarm B Mask the most-significant bits starting at this bit.
Parameters
RTCx: RTC Instance
Mask: Value between Min_Data=0x00 and Max_Data=0xF
Return values
None
Notes
This register can be written only when ALRBE is reset in
RTC_CR register, or in initialization mode.
Reference Manual to
LL API cross
reference:
ALRMBSSR MASKSS LL_RTC_ALMB_SetSubSecondMask
LL_RTC_ALMB_GetSubSecondMask
Function name
__STATIC_INLINE uint32_t
LL_RTC_ALMB_GetSubSecondMask (RTC_TypeDef * RTCx)
Function description
Get Alarm B Mask the most-significant bits starting at this bit.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xF
Reference Manual to
ALRMBSSR MASKSS LL_RTC_ALMB_GetSubSecondMask
LL RTC Generic Driver
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LL API cross
reference:
LL_RTC_ALMB_SetSubSecond
Function name
__STATIC_INLINE void LL_RTC_ALMB_SetSubSecond
(RTC_TypeDef * RTCx, uint32_t Subsecond)
Function description
Set Alarm B Sub seconds value.
Parameters
RTCx: RTC Instance
Subsecond: Value between Min_Data=0x00 and
Max_Data=0x7FFF
Return values
None
Reference Manual to
LL API cross
reference:
ALRMBSSR SS LL_RTC_ALMB_SetSubSecond
LL_RTC_ALMB_GetSubSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_ALMB_GetSubSecond
(RTC_TypeDef * RTCx)
Function description
Get Alarm B Sub seconds value.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x7FFF
Reference Manual to
LL API cross
reference:
ALRMBSSR SS LL_RTC_ALMB_GetSubSecond
LL_RTC_TS_Enable
Function name
__STATIC_INLINE void LL_RTC_TS_Enable (RTC_TypeDef *
RTCx)
Function description
Enable Timestamp.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR TSE LL_RTC_TS_Enable
LL_RTC_TS_Disable
Function name
__STATIC_INLINE void LL_RTC_TS_Disable (RTC_TypeDef *
RTCx)
Function description
Disable Timestamp.
Parameters
RTCx: RTC Instance
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Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR TSE LL_RTC_TS_Disable
LL_RTC_TS_SetActiveEdge
Function name
__STATIC_INLINE void LL_RTC_TS_SetActiveEdge
(RTC_TypeDef * RTCx, uint32_t Edge)
Function description
Set Time-stamp event active edge.
Parameters
RTCx: RTC Instance
Edge: This parameter can be one of the following values:
LL_RTC_TIMESTAMP_EDGE_RISING
LL_RTC_TIMESTAMP_EDGE_FALLING
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
TSE must be reset when TSEDGE is changed to avoid
unwanted TSF setting
Reference Manual to
LL API cross
reference:
CR TSEDGE LL_RTC_TS_SetActiveEdge
LL_RTC_TS_GetActiveEdge
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetActiveEdge
(RTC_TypeDef * RTCx)
Function description
Get Time-stamp event active edge.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_TIMESTAMP_EDGE_RISING
LL_RTC_TIMESTAMP_EDGE_FALLING
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR TSEDGE LL_RTC_TS_GetActiveEdge
LL_RTC_TS_GetTimeFormat
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetTimeFormat
(RTC_TypeDef * RTCx)
Function description
Get Timestamp AM/PM notation (AM or 24-hour format)
Parameters
RTCx: RTC Instance
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Return values
Returned: value can be one of the following values:
LL_RTC_TS_TIME_FORMAT_AM
LL_RTC_TS_TIME_FORMAT_PM
Reference Manual to
LL API cross
reference:
TSTR PM LL_RTC_TS_GetTimeFormat
LL_RTC_TS_GetHour
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetHour
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Hours in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x12 or
between Min_Data=0x00 and Max_Data=0x23
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Hours from BCD to Binary format
Reference Manual to
LL API cross
reference:
TSTR HT LL_RTC_TS_GetHour
TSTR HU LL_RTC_TS_GetHour
LL_RTC_TS_GetMinute
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetMinute
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Minutes in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Minutes from BCD to Binary format
Reference Manual to
LL API cross
reference:
TSTR MNT LL_RTC_TS_GetMinute
TSTR MNU LL_RTC_TS_GetMinute
LL_RTC_TS_GetSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetSecond
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Seconds in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x59
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Seconds from BCD to Binary format
Reference Manual to
LL API cross
TSTR ST LL_RTC_TS_GetSecond
TSTR SU LL_RTC_TS_GetSecond
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LL_RTC_TS_GetTime
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetTime
(RTC_TypeDef * RTCx)
Function description
Get Timestamp time (hour, minute and second) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of hours, minutes and seconds.
Notes
helper macros __LL_RTC_GET_HOUR,
__LL_RTC_GET_MINUTE and __LL_RTC_GET_SECOND
are available to get independently each parameter.
Reference Manual to
LL API cross
reference:
TSTR HT LL_RTC_TS_GetTime
TSTR HU LL_RTC_TS_GetTime
TSTR MNT LL_RTC_TS_GetTime
TSTR MNU LL_RTC_TS_GetTime
TSTR ST LL_RTC_TS_GetTime
TSTR SU LL_RTC_TS_GetTime
LL_RTC_TS_GetWeekDay
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetWeekDay
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Week day.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
Reference Manual to
LL API cross
reference:
TSDR WDU LL_RTC_TS_GetWeekDay
LL_RTC_TS_GetMonth
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetMonth
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Month in BCD format.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_MONTH_JANUARY
LL_RTC_MONTH_FEBRUARY
LL_RTC_MONTH_MARCH
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LL_RTC_MONTH_APRIL
LL_RTC_MONTH_MAY
LL_RTC_MONTH_JUNE
LL_RTC_MONTH_JULY
LL_RTC_MONTH_AUGUST
LL_RTC_MONTH_SEPTEMBER
LL_RTC_MONTH_OCTOBER
LL_RTC_MONTH_NOVEMBER
LL_RTC_MONTH_DECEMBER
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Month from BCD to Binary format
Reference Manual to
LL API cross
reference:
TSDR MT LL_RTC_TS_GetMonth
TSDR MU LL_RTC_TS_GetMonth
LL_RTC_TS_GetDay
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetDay
(RTC_TypeDef * RTCx)
Function description
Get Timestamp Day in BCD format.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x01 and Max_Data=0x31
Notes
helper macro __LL_RTC_CONVERT_BCD2BIN is available
to convert Day from BCD to Binary format
Reference Manual to
LL API cross
reference:
TSDR DT LL_RTC_TS_GetDay
TSDR DU LL_RTC_TS_GetDay
LL_RTC_TS_GetDate
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetDate
(RTC_TypeDef * RTCx)
Function description
Get Timestamp date (WeekDay, Day and Month) in BCD format.
Parameters
RTCx: RTC Instance
Return values
Combination: of Weekday, Day and Month
Notes
helper macros __LL_RTC_GET_WEEKDAY,
__LL_RTC_GET_MONTH, and __LL_RTC_GET_DAY are
available to get independently each parameter.
Reference Manual to
LL API cross
reference:
TSDR WDU LL_RTC_TS_GetDate
TSDR MT LL_RTC_TS_GetDate
TSDR MU LL_RTC_TS_GetDate
TSDR DT LL_RTC_TS_GetDate
TSDR DU LL_RTC_TS_GetDate
LL_RTC_TS_GetSubSecond
Function name
__STATIC_INLINE uint32_t LL_RTC_TS_GetSubSecond
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(RTC_TypeDef * RTCx)
Function description
Get time-stamp sub second value.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
TSSSR SS LL_RTC_TS_GetSubSecond
LL_RTC_TS_EnableOnTamper
Function name
__STATIC_INLINE void LL_RTC_TS_EnableOnTamper
(RTC_TypeDef * RTCx)
Function description
Activate timestamp on tamper detection event.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPTS LL_RTC_TS_EnableOnTamper
LL_RTC_TS_DisableOnTamper
Function name
__STATIC_INLINE void LL_RTC_TS_DisableOnTamper
(RTC_TypeDef * RTCx)
Function description
Disable timestamp on tamper detection event.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPTS LL_RTC_TS_DisableOnTamper
LL_RTC_TAMPER_Enable
Function name
__STATIC_INLINE void LL_RTC_TAMPER_Enable
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Enable RTC_TAMPx input detection.
Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_1 (*)
LL_RTC_TAMPER_2
LL_RTC_TAMPER_3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1E LL_RTC_TAMPER_Enable
TAMPCR TAMP2E LL_RTC_TAMPER_Enable
TAMPCR TAMP3E LL_RTC_TAMPER_Enable
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LL_RTC_TAMPER_Disable
Function name
__STATIC_INLINE void LL_RTC_TAMPER_Disable
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Clear RTC_TAMPx input detection.
Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_1 (*)
LL_RTC_TAMPER_2
LL_RTC_TAMPER_3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1E LL_RTC_TAMPER_Disable
TAMPCR TAMP2E LL_RTC_TAMPER_Disable
TAMPCR TAMP3E LL_RTC_TAMPER_Disable
LL_RTC_TAMPER_EnableMask
Function name
__STATIC_INLINE void LL_RTC_TAMPER_EnableMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Enable Tamper mask flag.
Parameters
RTCx: RTC Instance
Mask: This parameter can be a combination of the following
values: (*) value not defined in all devices.
LL_RTC_TAMPER_MASK_TAMPER1 (*)
LL_RTC_TAMPER_MASK_TAMPER2
LL_RTC_TAMPER_MASK_TAMPER3 (*)
Return values
None
Notes
Associated Tamper IT must not enabled when tamper mask is
set.
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1MF LL_RTC_TAMPER_EnableMask
TAMPCR TAMP2MF LL_RTC_TAMPER_EnableMask
TAMPCR TAMP3MF LL_RTC_TAMPER_EnableMask
LL_RTC_TAMPER_DisableMask
Function name
__STATIC_INLINE void LL_RTC_TAMPER_DisableMask
(RTC_TypeDef * RTCx, uint32_t Mask)
Function description
Disable Tamper mask flag.
Parameters
RTCx: RTC Instance
Mask: This parameter can be a combination of the following
values: (*) value not defined in all devices.
LL_RTC_TAMPER_MASK_TAMPER1 (*)
LL_RTC_TAMPER_MASK_TAMPER2
LL_RTC_TAMPER_MASK_TAMPER3 (*)
Return values
None
Reference Manual to
TAMPCR TAMP1MF LL_RTC_TAMPER_DisableMask
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reference:
TAMPCR TAMP2MF LL_RTC_TAMPER_DisableMask
TAMPCR TAMP3MF LL_RTC_TAMPER_DisableMask
LL_RTC_TAMPER_EnableEraseBKP
Function name
__STATIC_INLINE void LL_RTC_TAMPER_EnableEraseBKP
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Enable backup register erase after Tamper event detection.
Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_NOERASE_TAMPER1 (*)
LL_RTC_TAMPER_NOERASE_TAMPER2
LL_RTC_TAMPER_NOERASE_TAMPER3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1NOERASE
LL_RTC_TAMPER_EnableEraseBKP
TAMPCR TAMP2NOERASE
LL_RTC_TAMPER_EnableEraseBKP
TAMPCR TAMP3NOERASE
LL_RTC_TAMPER_EnableEraseBKP
LL_RTC_TAMPER_DisableEraseBKP
Function name
__STATIC_INLINE void LL_RTC_TAMPER_DisableEraseBKP
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Disable backup register erase after Tamper event detection.
Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_NOERASE_TAMPER1 (*)
LL_RTC_TAMPER_NOERASE_TAMPER2
LL_RTC_TAMPER_NOERASE_TAMPER3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1NOERASE
LL_RTC_TAMPER_DisableEraseBKP
TAMPCR TAMP2NOERASE
LL_RTC_TAMPER_DisableEraseBKP
TAMPCR TAMP3NOERASE
LL_RTC_TAMPER_DisableEraseBKP
LL_RTC_TAMPER_DisablePullUp
Function name
__STATIC_INLINE void LL_RTC_TAMPER_DisablePullUp
(RTC_TypeDef * RTCx)
Function description
Disable RTC_TAMPx pull-up disable (Disable precharge of
RTC_TAMPx pins)
Parameters
RTCx: RTC Instance
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Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPPUDIS LL_RTC_TAMPER_DisablePullUp
LL_RTC_TAMPER_EnablePullUp
Function name
__STATIC_INLINE void LL_RTC_TAMPER_EnablePullUp
(RTC_TypeDef * RTCx)
Function description
Enable RTC_TAMPx pull-up disable ( Precharge RTC_TAMPx
pins before sampling)
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPPUDIS LL_RTC_TAMPER_EnablePullUp
LL_RTC_TAMPER_SetPrecharge
Function name
__STATIC_INLINE void LL_RTC_TAMPER_SetPrecharge
(RTC_TypeDef * RTCx, uint32_t Duration)
Function description
Set RTC_TAMPx precharge duration.
Parameters
RTCx: RTC Instance
Duration: This parameter can be one of the following values:
LL_RTC_TAMPER_DURATION_1RTCCLK
LL_RTC_TAMPER_DURATION_2RTCCLK
LL_RTC_TAMPER_DURATION_4RTCCLK
LL_RTC_TAMPER_DURATION_8RTCCLK
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPPRCH LL_RTC_TAMPER_SetPrecharge
LL_RTC_TAMPER_GetPrecharge
Function name
__STATIC_INLINE uint32_t LL_RTC_TAMPER_GetPrecharge
(RTC_TypeDef * RTCx)
Function description
Get RTC_TAMPx precharge duration.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_TAMPER_DURATION_1RTCCLK
LL_RTC_TAMPER_DURATION_2RTCCLK
LL_RTC_TAMPER_DURATION_4RTCCLK
LL_RTC_TAMPER_DURATION_8RTCCLK
Reference Manual to
LL API cross
reference:
TAMPCR TAMPPRCH LL_RTC_TAMPER_GetPrecharge
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LL_RTC_TAMPER_SetFilterCount
Function name
__STATIC_INLINE void LL_RTC_TAMPER_SetFilterCount
(RTC_TypeDef * RTCx, uint32_t FilterCount)
Function description
Set RTC_TAMPx filter count.
Parameters
RTCx: RTC Instance
FilterCount: This parameter can be one of the following
values:
LL_RTC_TAMPER_FILTER_DISABLE
LL_RTC_TAMPER_FILTER_2SAMPLE
LL_RTC_TAMPER_FILTER_4SAMPLE
LL_RTC_TAMPER_FILTER_8SAMPLE
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPFLT LL_RTC_TAMPER_SetFilterCount
LL_RTC_TAMPER_GetFilterCount
Function name
__STATIC_INLINE uint32_t LL_RTC_TAMPER_GetFilterCount
(RTC_TypeDef * RTCx)
Function description
Get RTC_TAMPx filter count.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_TAMPER_FILTER_DISABLE
LL_RTC_TAMPER_FILTER_2SAMPLE
LL_RTC_TAMPER_FILTER_4SAMPLE
LL_RTC_TAMPER_FILTER_8SAMPLE
Reference Manual to
LL API cross
reference:
TAMPCR TAMPFLT LL_RTC_TAMPER_GetFilterCount
LL_RTC_TAMPER_SetSamplingFreq
Function name
__STATIC_INLINE void LL_RTC_TAMPER_SetSamplingFreq
(RTC_TypeDef * RTCx, uint32_t SamplingFreq)
Function description
Set Tamper sampling frequency.
Parameters
RTCx: RTC Instance
SamplingFreq: This parameter can be one of the following
values:
LL_RTC_TAMPER_SAMPLFREQDIV_32768
LL_RTC_TAMPER_SAMPLFREQDIV_16384
LL_RTC_TAMPER_SAMPLFREQDIV_8192
LL_RTC_TAMPER_SAMPLFREQDIV_4096
LL_RTC_TAMPER_SAMPLFREQDIV_2048
LL_RTC_TAMPER_SAMPLFREQDIV_1024
LL_RTC_TAMPER_SAMPLFREQDIV_512
LL_RTC_TAMPER_SAMPLFREQDIV_256
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Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPFREQ LL_RTC_TAMPER_SetSamplingFreq
LL_RTC_TAMPER_GetSamplingFreq
Function name
__STATIC_INLINE uint32_t
LL_RTC_TAMPER_GetSamplingFreq (RTC_TypeDef * RTCx)
Function description
Get Tamper sampling frequency.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_TAMPER_SAMPLFREQDIV_32768
LL_RTC_TAMPER_SAMPLFREQDIV_16384
LL_RTC_TAMPER_SAMPLFREQDIV_8192
LL_RTC_TAMPER_SAMPLFREQDIV_4096
LL_RTC_TAMPER_SAMPLFREQDIV_2048
LL_RTC_TAMPER_SAMPLFREQDIV_1024
LL_RTC_TAMPER_SAMPLFREQDIV_512
LL_RTC_TAMPER_SAMPLFREQDIV_256
Reference Manual to
LL API cross
reference:
TAMPCR TAMPFREQ LL_RTC_TAMPER_GetSamplingFreq
LL_RTC_TAMPER_EnableActiveLevel
Function name
__STATIC_INLINE void LL_RTC_TAMPER_EnableActiveLevel
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Enable Active level for Tamper input.
Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_ACTIVELEVEL_TAMP1 (*)
LL_RTC_TAMPER_ACTIVELEVEL_TAMP2
LL_RTC_TAMPER_ACTIVELEVEL_TAMP3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1TRG LL_RTC_TAMPER_EnableActiveLevel
TAMPCR TAMP2TRG
LL_RTC_TAMPER_EnableActiveLevel
TAMPCR TAMP3TRG
LL_RTC_TAMPER_EnableActiveLevel
LL_RTC_TAMPER_DisableActiveLevel
Function name
__STATIC_INLINE void LL_RTC_TAMPER_DisableActiveLevel
(RTC_TypeDef * RTCx, uint32_t Tamper)
Function description
Disable Active level for Tamper input.
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Parameters
RTCx: RTC Instance
Tamper: This parameter can be a combination of the
following values: (*) value not defined in all devices.
LL_RTC_TAMPER_ACTIVELEVEL_TAMP1 (*)
LL_RTC_TAMPER_ACTIVELEVEL_TAMP2
LL_RTC_TAMPER_ACTIVELEVEL_TAMP3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1TRG
LL_RTC_TAMPER_DisableActiveLevel
TAMPCR TAMP2TRG
LL_RTC_TAMPER_DisableActiveLevel
TAMPCR TAMP3TRG
LL_RTC_TAMPER_DisableActiveLevel
LL_RTC_WAKEUP_Enable
Function name
__STATIC_INLINE void LL_RTC_WAKEUP_Enable
(RTC_TypeDef * RTCx)
Function description
Enable Wakeup timer.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR WUTE LL_RTC_WAKEUP_Enable
LL_RTC_WAKEUP_Disable
Function name
__STATIC_INLINE void LL_RTC_WAKEUP_Disable
(RTC_TypeDef * RTCx)
Function description
Disable Wakeup timer.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR WUTE LL_RTC_WAKEUP_Disable
LL_RTC_WAKEUP_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_RTC_WAKEUP_IsEnabled
(RTC_TypeDef * RTCx)
Function description
Check if Wakeup timer is enabled or not.
Parameters
RTCx: RTC Instance
LL RTC Generic Driver
UM1749
1168/1466
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR WUTE LL_RTC_WAKEUP_IsEnabled
LL_RTC_WAKEUP_SetClock
Function name
__STATIC_INLINE void LL_RTC_WAKEUP_SetClock
(RTC_TypeDef * RTCx, uint32_t WakeupClock)
Function description
Select Wakeup clock.
Parameters
RTCx: RTC Instance
WakeupClock: This parameter can be one of the following
values:
LL_RTC_WAKEUPCLOCK_DIV_16
LL_RTC_WAKEUPCLOCK_DIV_8
LL_RTC_WAKEUPCLOCK_DIV_4
LL_RTC_WAKEUPCLOCK_DIV_2
LL_RTC_WAKEUPCLOCK_CKSPRE
LL_RTC_WAKEUPCLOCK_CKSPRE_WUT
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Bit can be written only when RTC_CR WUTE bit = 0 and
RTC_ISR WUTWF bit = 1
Reference Manual to
LL API cross
reference:
CR WUCKSEL LL_RTC_WAKEUP_SetClock
LL_RTC_WAKEUP_GetClock
Function name
__STATIC_INLINE uint32_t LL_RTC_WAKEUP_GetClock
(RTC_TypeDef * RTCx)
Function description
Get Wakeup clock.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_WAKEUPCLOCK_DIV_16
LL_RTC_WAKEUPCLOCK_DIV_8
LL_RTC_WAKEUPCLOCK_DIV_4
LL_RTC_WAKEUPCLOCK_DIV_2
LL_RTC_WAKEUPCLOCK_CKSPRE
LL_RTC_WAKEUPCLOCK_CKSPRE_WUT
Reference Manual to
LL API cross
reference:
CR WUCKSEL LL_RTC_WAKEUP_GetClock
LL_RTC_WAKEUP_SetAutoReload
Function name
__STATIC_INLINE void LL_RTC_WAKEUP_SetAutoReload
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1169/1466
(RTC_TypeDef * RTCx, uint32_t Value)
Function description
Set Wakeup auto-reload value.
Parameters
RTCx: RTC Instance
Value: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Return values
None
Notes
Bit can be written only when WUTWF is set to 1 in RTC_ISR
Reference Manual to
LL API cross
reference:
WUTR WUT LL_RTC_WAKEUP_SetAutoReload
LL_RTC_WAKEUP_GetAutoReload
Function name
__STATIC_INLINE uint32_t LL_RTC_WAKEUP_GetAutoReload
(RTC_TypeDef * RTCx)
Function description
Get Wakeup auto-reload value.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
WUTR WUT LL_RTC_WAKEUP_GetAutoReload
LL_RTC_BAK_SetRegister
Function name
__STATIC_INLINE void LL_RTC_BAK_SetRegister
(RTC_TypeDef * RTCx, uint32_t BackupRegister, uint32_t
Data)
Function description
Writes a data in a specified RTC Backup data register.
Parameters
RTCx: RTC Instance
BackupRegister: This parameter can be one of the following
values:
LL_RTC_BKP_DR0
LL_RTC_BKP_DR1
LL_RTC_BKP_DR2
LL_RTC_BKP_DR3
LL_RTC_BKP_DR4
Data: Value between Min_Data=0x00 and
Max_Data=0xFFFFFFFF
Return values
None
Reference Manual to
LL API cross
reference:
BKPxR BKP LL_RTC_BAK_SetRegister
LL_RTC_BAK_GetRegister
Function name
__STATIC_INLINE uint32_t LL_RTC_BAK_GetRegister
(RTC_TypeDef * RTCx, uint32_t BackupRegister)
LL RTC Generic Driver
UM1749
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Function description
Reads data from the specified RTC Backup data Register.
Parameters
RTCx: RTC Instance
BackupRegister: This parameter can be one of the following
values:
LL_RTC_BKP_DR0
LL_RTC_BKP_DR1
LL_RTC_BKP_DR2
LL_RTC_BKP_DR3
LL_RTC_BKP_DR4
Return values
Value: between Min_Data=0x00 and
Max_Data=0xFFFFFFFF
Reference Manual to
LL API cross
reference:
BKPxR BKP LL_RTC_BAK_GetRegister
LL_RTC_CAL_SetOutputFreq
Function name
__STATIC_INLINE void LL_RTC_CAL_SetOutputFreq
(RTC_TypeDef * RTCx, uint32_t Frequency)
Function description
Set Calibration output frequency (1 Hz or 512 Hz)
Parameters
RTCx: RTC Instance
Frequency: This parameter can be one of the following
values:
LL_RTC_CALIB_OUTPUT_NONE
LL_RTC_CALIB_OUTPUT_1HZ
LL_RTC_CALIB_OUTPUT_512HZ
Return values
None
Notes
Bits are write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR COE LL_RTC_CAL_SetOutputFreq
CR COSEL LL_RTC_CAL_SetOutputFreq
LL_RTC_CAL_GetOutputFreq
Function name
__STATIC_INLINE uint32_t LL_RTC_CAL_GetOutputFreq
(RTC_TypeDef * RTCx)
Function description
Get Calibration output frequency (1 Hz or 512 Hz)
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_CALIB_OUTPUT_NONE
LL_RTC_CALIB_OUTPUT_1HZ
LL_RTC_CALIB_OUTPUT_512HZ
Reference Manual to
LL API cross
reference:
CR COE LL_RTC_CAL_GetOutputFreq
CR COSEL LL_RTC_CAL_GetOutputFreq
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1171/1466
LL_RTC_CAL_SetPulse
Function name
__STATIC_INLINE void LL_RTC_CAL_SetPulse (RTC_TypeDef
* RTCx, uint32_t Pulse)
Function description
Insert or not One RTCCLK pulse every 2exp11 pulses (frequency
increased by 488.5 ppm)
Parameters
RTCx: RTC Instance
Pulse: This parameter can be one of the following values:
LL_RTC_CALIB_INSERTPULSE_NONE
LL_RTC_CALIB_INSERTPULSE_SET
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Bit can be written only when RECALPF is set to 0 in
RTC_ISR
Reference Manual to
LL API cross
reference:
CALR CALP LL_RTC_CAL_SetPulse
LL_RTC_CAL_IsPulseInserted
Function name
__STATIC_INLINE uint32_t LL_RTC_CAL_IsPulseInserted
(RTC_TypeDef * RTCx)
Function description
Check if one RTCCLK has been inserted or not every 2exp11
pulses (frequency increased by 488.5 ppm)
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CALR CALP LL_RTC_CAL_IsPulseInserted
LL_RTC_CAL_SetPeriod
Function name
__STATIC_INLINE void LL_RTC_CAL_SetPeriod
(RTC_TypeDef * RTCx, uint32_t Period)
Function description
Set the calibration cycle period.
Parameters
RTCx: RTC Instance
Period: This parameter can be one of the following values:
LL_RTC_CALIB_PERIOD_32SEC
LL_RTC_CALIB_PERIOD_16SEC
LL_RTC_CALIB_PERIOD_8SEC
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Bit can be written only when RECALPF is set to 0 in
RTC_ISR
Reference Manual to
CALR CALW8 LL_RTC_CAL_SetPeriod
LL RTC Generic Driver
UM1749
1172/1466
DocID026232 Rev 6
LL API cross
reference:
CALR CALW16 LL_RTC_CAL_SetPeriod
LL_RTC_CAL_GetPeriod
Function name
__STATIC_INLINE uint32_t LL_RTC_CAL_GetPeriod
(RTC_TypeDef * RTCx)
Function description
Get the calibration cycle period.
Parameters
RTCx: RTC Instance
Return values
Returned: value can be one of the following values:
LL_RTC_CALIB_PERIOD_32SEC
LL_RTC_CALIB_PERIOD_16SEC
LL_RTC_CALIB_PERIOD_8SEC
Reference Manual to
LL API cross
reference:
CALR CALW8 LL_RTC_CAL_GetPeriod
CALR CALW16 LL_RTC_CAL_GetPeriod
LL_RTC_CAL_SetMinus
Function name
__STATIC_INLINE void LL_RTC_CAL_SetMinus
(RTC_TypeDef * RTCx, uint32_t CalibMinus)
Function description
Set Calibration minus.
Parameters
RTCx: RTC Instance
CalibMinus: Value between Min_Data=0x00 and
Max_Data=0x1FF
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Bit can be written only when RECALPF is set to 0 in
RTC_ISR
Reference Manual to
LL API cross
reference:
CALR CALM LL_RTC_CAL_SetMinus
LL_RTC_CAL_GetMinus
Function name
__STATIC_INLINE uint32_t LL_RTC_CAL_GetMinus
(RTC_TypeDef * RTCx)
Function description
Get Calibration minus.
Parameters
RTCx: RTC Instance
Return values
Value: between Min_Data=0x00 and Max_Data= 0x1FF
Reference Manual to
LL API cross
reference:
CALR CALM LL_RTC_CAL_GetMinus
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1173/1466
LL_RTC_IsActiveFlag_RECALP
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_RECALP
(RTC_TypeDef * RTCx)
Function description
Get Recalibration pending Flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RECALPF LL_RTC_IsActiveFlag_RECALP
LL_RTC_IsActiveFlag_TAMP3
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_TAMP3
(RTC_TypeDef * RTCx)
Function description
Get RTC_TAMP3 detection flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TAMP3F LL_RTC_IsActiveFlag_TAMP3
LL_RTC_IsActiveFlag_TAMP2
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_TAMP2
(RTC_TypeDef * RTCx)
Function description
Get RTC_TAMP2 detection flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TAMP2F LL_RTC_IsActiveFlag_TAMP2
LL_RTC_IsActiveFlag_TAMP1
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_TAMP1
(RTC_TypeDef * RTCx)
Function description
Get RTC_TAMP1 detection flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TAMP1F LL_RTC_IsActiveFlag_TAMP1
LL RTC Generic Driver
UM1749
1174/1466
DocID026232 Rev 6
LL_RTC_IsActiveFlag_TSOV
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_TSOV
(RTC_TypeDef * RTCx)
Function description
Get Time-stamp overflow flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TSOVF LL_RTC_IsActiveFlag_TSOV
LL_RTC_IsActiveFlag_TS
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_TS
(RTC_TypeDef * RTCx)
Function description
Get Time-stamp flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TSF LL_RTC_IsActiveFlag_TS
LL_RTC_IsActiveFlag_WUT
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_WUT
(RTC_TypeDef * RTCx)
Function description
Get Wakeup timer flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR WUTF LL_RTC_IsActiveFlag_WUT
LL_RTC_IsActiveFlag_ALRB
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_ALRB
(RTC_TypeDef * RTCx)
Function description
Get Alarm B flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ALRBF LL_RTC_IsActiveFlag_ALRB
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1175/1466
LL_RTC_IsActiveFlag_ALRA
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_ALRA
(RTC_TypeDef * RTCx)
Function description
Get Alarm A flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ALRAF LL_RTC_IsActiveFlag_ALRA
LL_RTC_ClearFlag_TAMP3
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_TAMP3
(RTC_TypeDef * RTCx)
Function description
Clear RTC_TAMP3 detection flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR TAMP3F LL_RTC_ClearFlag_TAMP3
LL_RTC_ClearFlag_TAMP2
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_TAMP2
(RTC_TypeDef * RTCx)
Function description
Clear RTC_TAMP2 detection flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR TAMP2F LL_RTC_ClearFlag_TAMP2
LL_RTC_ClearFlag_TAMP1
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_TAMP1
(RTC_TypeDef * RTCx)
Function description
Clear RTC_TAMP1 detection flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR TAMP1F LL_RTC_ClearFlag_TAMP1
LL RTC Generic Driver
UM1749
1176/1466
DocID026232 Rev 6
LL_RTC_ClearFlag_TSOV
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_TSOV
(RTC_TypeDef * RTCx)
Function description
Clear Time-stamp overflow flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR TSOVF LL_RTC_ClearFlag_TSOV
LL_RTC_ClearFlag_TS
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_TS (RTC_TypeDef
* RTCx)
Function description
Clear Time-stamp flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR TSF LL_RTC_ClearFlag_TS
LL_RTC_ClearFlag_WUT
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_WUT
(RTC_TypeDef * RTCx)
Function description
Clear Wakeup timer flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR WUTF LL_RTC_ClearFlag_WUT
LL_RTC_ClearFlag_ALRB
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_ALRB
(RTC_TypeDef * RTCx)
Function description
Clear Alarm B flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR ALRBF LL_RTC_ClearFlag_ALRB
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1177/1466
LL_RTC_ClearFlag_ALRA
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_ALRA
(RTC_TypeDef * RTCx)
Function description
Clear Alarm A flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR ALRAF LL_RTC_ClearFlag_ALRA
LL_RTC_IsActiveFlag_INIT
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_INIT
(RTC_TypeDef * RTCx)
Function description
Get Initialization flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR INITF LL_RTC_IsActiveFlag_INIT
LL_RTC_IsActiveFlag_RS
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_RS
(RTC_TypeDef * RTCx)
Function description
Get Registers synchronization flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RSF LL_RTC_IsActiveFlag_RS
LL_RTC_ClearFlag_RS
Function name
__STATIC_INLINE void LL_RTC_ClearFlag_RS (RTC_TypeDef
* RTCx)
Function description
Clear Registers synchronization flag.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
ISR RSF LL_RTC_ClearFlag_RS
LL RTC Generic Driver
UM1749
1178/1466
DocID026232 Rev 6
LL_RTC_IsActiveFlag_INITS
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_INITS
(RTC_TypeDef * RTCx)
Function description
Get Initialization status flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR INITS LL_RTC_IsActiveFlag_INITS
LL_RTC_IsActiveFlag_SHP
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_SHP
(RTC_TypeDef * RTCx)
Function description
Get Shift operation pending flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SHPF LL_RTC_IsActiveFlag_SHP
LL_RTC_IsActiveFlag_WUTW
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_WUTW
(RTC_TypeDef * RTCx)
Function description
Get Wakeup timer write flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR WUTWF LL_RTC_IsActiveFlag_WUTW
LL_RTC_IsActiveFlag_ALRBW
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_ALRBW
(RTC_TypeDef * RTCx)
Function description
Get Alarm B write flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ALRBWF LL_RTC_IsActiveFlag_ALRBW
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1179/1466
LL_RTC_IsActiveFlag_ALRAW
Function name
__STATIC_INLINE uint32_t LL_RTC_IsActiveFlag_ALRAW
(RTC_TypeDef * RTCx)
Function description
Get Alarm A write flag.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ALRAWF LL_RTC_IsActiveFlag_ALRAW
LL_RTC_EnableIT_TS
Function name
__STATIC_INLINE void LL_RTC_EnableIT_TS (RTC_TypeDef *
RTCx)
Function description
Enable Time-stamp interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR TSIE LL_RTC_EnableIT_TS
LL_RTC_DisableIT_TS
Function name
__STATIC_INLINE void LL_RTC_DisableIT_TS (RTC_TypeDef
* RTCx)
Function description
Disable Time-stamp interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR TSIE LL_RTC_DisableIT_TS
LL_RTC_EnableIT_WUT
Function name
__STATIC_INLINE void LL_RTC_EnableIT_WUT
(RTC_TypeDef * RTCx)
Function description
Enable Wakeup timer interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
LL RTC Generic Driver
UM1749
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DocID026232 Rev 6
function should be called before.
Reference Manual to
LL API cross
reference:
CR WUTIE LL_RTC_EnableIT_WUT
LL_RTC_DisableIT_WUT
Function name
__STATIC_INLINE void LL_RTC_DisableIT_WUT
(RTC_TypeDef * RTCx)
Function description
Disable Wakeup timer interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR WUTIE LL_RTC_DisableIT_WUT
LL_RTC_EnableIT_ALRB
Function name
__STATIC_INLINE void LL_RTC_EnableIT_ALRB
(RTC_TypeDef * RTCx)
Function description
Enable Alarm B interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRBIE LL_RTC_EnableIT_ALRB
LL_RTC_DisableIT_ALRB
Function name
__STATIC_INLINE void LL_RTC_DisableIT_ALRB
(RTC_TypeDef * RTCx)
Function description
Disable Alarm B interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRBIE LL_RTC_DisableIT_ALRB
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1181/1466
LL_RTC_EnableIT_ALRA
Function name
__STATIC_INLINE void LL_RTC_EnableIT_ALRA
(RTC_TypeDef * RTCx)
Function description
Enable Alarm A interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRAIE LL_RTC_EnableIT_ALRA
LL_RTC_DisableIT_ALRA
Function name
__STATIC_INLINE void LL_RTC_DisableIT_ALRA
(RTC_TypeDef * RTCx)
Function description
Disable Alarm A interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Notes
Bit is write-protected. LL_RTC_DisableWriteProtection
function should be called before.
Reference Manual to
LL API cross
reference:
CR ALRAIE LL_RTC_DisableIT_ALRA
LL_RTC_EnableIT_TAMP3
Function name
__STATIC_INLINE void LL_RTC_EnableIT_TAMP3
(RTC_TypeDef * RTCx)
Function description
Enable Tamper 3 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP3IE LL_RTC_EnableIT_TAMP3
LL_RTC_DisableIT_TAMP3
Function name
__STATIC_INLINE void LL_RTC_DisableIT_TAMP3
(RTC_TypeDef * RTCx)
Function description
Disable Tamper 3 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
TAMPCR TAMP3IE LL_RTC_DisableIT_TAMP3
LL RTC Generic Driver
UM1749
1182/1466
DocID026232 Rev 6
LL API cross
reference:
LL_RTC_EnableIT_TAMP2
Function name
__STATIC_INLINE void LL_RTC_EnableIT_TAMP2
(RTC_TypeDef * RTCx)
Function description
Enable Tamper 2 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP2IE LL_RTC_EnableIT_TAMP2
LL_RTC_DisableIT_TAMP2
Function name
__STATIC_INLINE void LL_RTC_DisableIT_TAMP2
(RTC_TypeDef * RTCx)
Function description
Disable Tamper 2 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP2IE LL_RTC_DisableIT_TAMP2
LL_RTC_EnableIT_TAMP1
Function name
__STATIC_INLINE void LL_RTC_EnableIT_TAMP1
(RTC_TypeDef * RTCx)
Function description
Enable Tamper 1 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1IE LL_RTC_EnableIT_TAMP1
LL_RTC_DisableIT_TAMP1
Function name
__STATIC_INLINE void LL_RTC_DisableIT_TAMP1
(RTC_TypeDef * RTCx)
Function description
Disable Tamper 1 interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
TAMPCR TAMP1IE LL_RTC_DisableIT_TAMP1
UM1749
LL RTC Generic Driver
DocID026232 Rev 6
1183/1466
reference:
LL_RTC_EnableIT_TAMP
Function name
__STATIC_INLINE void LL_RTC_EnableIT_TAMP
(RTC_TypeDef * RTCx)
Function description
Enable all Tamper Interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPIE LL_RTC_EnableIT_TAMP
LL_RTC_DisableIT_TAMP
Function name
__STATIC_INLINE void LL_RTC_DisableIT_TAMP
(RTC_TypeDef * RTCx)
Function description
Disable all Tamper Interrupt.
Parameters
RTCx: RTC Instance
Return values
None
Reference Manual to
LL API cross
reference:
TAMPCR TAMPIE LL_RTC_DisableIT_TAMP
LL_RTC_IsEnabledIT_TS
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_TS
(RTC_TypeDef * RTCx)
Function description
Check if Time-stamp interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR TSIE LL_RTC_IsEnabledIT_TS
LL_RTC_IsEnabledIT_WUT
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_WUT
(RTC_TypeDef * RTCx)
Function description
Check if Wakeup timer interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR WUTIE LL_RTC_IsEnabledIT_WUT
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LL_RTC_IsEnabledIT_ALRB
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_ALRB
(RTC_TypeDef * RTCx)
Function description
Check if Alarm B interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ALRBIE LL_RTC_IsEnabledIT_ALRB
LL_RTC_IsEnabledIT_ALRA
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_ALRA
(RTC_TypeDef * RTCx)
Function description
Check if Alarm A interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR ALRAIE LL_RTC_IsEnabledIT_ALRA
LL_RTC_IsEnabledIT_TAMP3
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_TAMP3
(RTC_TypeDef * RTCx)
Function description
Check if Tamper 3 interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
TAMPCR TAMP3IE LL_RTC_IsEnabledIT_TAMP3
LL_RTC_IsEnabledIT_TAMP2
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_TAMP2
(RTC_TypeDef * RTCx)
Function description
Check if Tamper 2 interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
TAMPCR TAMP2IE LL_RTC_IsEnabledIT_TAMP2
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LL_RTC_IsEnabledIT_TAMP1
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_TAMP1
(RTC_TypeDef * RTCx)
Function description
Check if Tamper 1 interrupt is enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
TAMPCR TAMP1IE LL_RTC_IsEnabledIT_TAMP1
LL_RTC_IsEnabledIT_TAMP
Function name
__STATIC_INLINE uint32_t LL_RTC_IsEnabledIT_TAMP
(RTC_TypeDef * RTCx)
Function description
Check if all the TAMPER interrupts are enabled or not.
Parameters
RTCx: RTC Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
TAMPCR TAMPIE LL_RTC_IsEnabledIT_TAMP
LL_RTC_DeInit
Function name
ErrorStatus LL_RTC_DeInit (RTC_TypeDef * RTCx)
Function description
De-Initializes the RTC registers to their default reset values.
Parameters
RTCx: RTC Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC registers are de-initialized
ERROR: RTC registers are not de-initialized
Notes
This function doesn't reset the RTC Clock source and RTC
Backup Data registers.
LL_RTC_Init
Function name
ErrorStatus LL_RTC_Init (RTC_TypeDef * RTCx,
LL_RTC_InitTypeDef * RTC_InitStruct)
Function description
Initializes the RTC registers according to the specified parameters
in RTC_InitStruct.
Parameters
RTCx: RTC Instance
RTC_InitStruct: pointer to a LL_RTC_InitTypeDef structure
that contains the configuration information for the RTC
peripheral.
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC registers are initialized
ERROR: RTC registers are not initialized
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Notes
The RTC Prescaler register is write protected and can be
written in initialization mode only.
LL_RTC_StructInit
Function name
void LL_RTC_StructInit (LL_RTC_InitTypeDef *
RTC_InitStruct)
Function description
Set each LL_RTC_InitTypeDef field to default value.
Parameters
RTC_InitStruct: pointer to a LL_RTC_InitTypeDef structure
which will be initialized.
Return values
None
LL_RTC_TIME_Init
Function name
ErrorStatus LL_RTC_TIME_Init (RTC_TypeDef * RTCx,
uint32_t RTC_Format, LL_RTC_TimeTypeDef *
RTC_TimeStruct)
Function description
Set the RTC current time.
Parameters
RTCx: RTC Instance
RTC_Format: This parameter can be one of the following
values:
LL_RTC_FORMAT_BIN
LL_RTC_FORMAT_BCD
RTC_TimeStruct: pointer to a RTC_TimeTypeDef structure
that contains the time configuration information for the RTC.
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC Time register is configured
ERROR: RTC Time register is not configured
LL_RTC_TIME_StructInit
Function name
void LL_RTC_TIME_StructInit (LL_RTC_TimeTypeDef *
RTC_TimeStruct)
Function description
Set each LL_RTC_TimeTypeDef field to default value (Time =
00h:00min:00sec).
Parameters
RTC_TimeStruct: pointer to a LL_RTC_TimeTypeDef
structure which will be initialized.
Return values
None
LL_RTC_DATE_Init
Function name
ErrorStatus LL_RTC_DATE_Init (RTC_TypeDef * RTCx,
uint32_t RTC_Format, LL_RTC_DateTypeDef *
RTC_DateStruct)
Function description
Set the RTC current date.
Parameters
RTCx: RTC Instance
RTC_Format: This parameter can be one of the following
values:
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LL_RTC_FORMAT_BIN
LL_RTC_FORMAT_BCD
RTC_DateStruct: pointer to a RTC_DateTypeDef structure
that contains the date configuration information for the RTC.
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC Day register is configured
ERROR: RTC Day register is not configured
LL_RTC_DATE_StructInit
Function name
void LL_RTC_DATE_StructInit (LL_RTC_DateTypeDef *
RTC_DateStruct)
Function description
Set each LL_RTC_DateTypeDef field to default value (date =
Monday, January 01 xx00)
Parameters
RTC_DateStruct: pointer to a LL_RTC_DateTypeDef
structure which will be initialized.
Return values
None
LL_RTC_ALMA_Init
Function name
ErrorStatus LL_RTC_ALMA_Init (RTC_TypeDef * RTCx,
uint32_t RTC_Format, LL_RTC_AlarmTypeDef *
RTC_AlarmStruct)
Function description
Set the RTC Alarm A.
Parameters
RTCx: RTC Instance
RTC_Format: This parameter can be one of the following
values:
LL_RTC_FORMAT_BIN
LL_RTC_FORMAT_BCD
RTC_AlarmStruct: pointer to a LL_RTC_AlarmTypeDef
structure that contains the alarm configuration parameters.
Return values
An: ErrorStatus enumeration value:
SUCCESS: ALARMA registers are configured
ERROR: ALARMA registers are not configured
Notes
The Alarm register can only be written when the
corresponding Alarm is disabled (Use
LL_RTC_ALMA_Disable function).
LL_RTC_ALMB_Init
Function name
ErrorStatus LL_RTC_ALMB_Init (RTC_TypeDef * RTCx,
uint32_t RTC_Format, LL_RTC_AlarmTypeDef *
RTC_AlarmStruct)
Function description
Set the RTC Alarm B.
Parameters
RTCx: RTC Instance
RTC_Format: This parameter can be one of the following
values:
LL_RTC_FORMAT_BIN
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LL_RTC_FORMAT_BCD
RTC_AlarmStruct: pointer to a LL_RTC_AlarmTypeDef
structure that contains the alarm configuration parameters.
Return values
An: ErrorStatus enumeration value:
SUCCESS: ALARMB registers are configured
ERROR: ALARMB registers are not configured
Notes
The Alarm register can only be written when the
corresponding Alarm is disabled (LL_RTC_ALMB_Disable
function).
LL_RTC_ALMA_StructInit
Function name
void LL_RTC_ALMA_StructInit (LL_RTC_AlarmTypeDef *
RTC_AlarmStruct)
Function description
Set each LL_RTC_AlarmTypeDef of ALARMA field to default value
(Time = 00h:00mn:00sec / Day = 1st day of the month/Mask = all
fields are masked).
Parameters
RTC_AlarmStruct: pointer to a LL_RTC_AlarmTypeDef
structure which will be initialized.
Return values
None
LL_RTC_ALMB_StructInit
Function name
void LL_RTC_ALMB_StructInit (LL_RTC_AlarmTypeDef *
RTC_AlarmStruct)
Function description
Set each LL_RTC_AlarmTypeDef of ALARMA field to default value
(Time = 00h:00mn:00sec / Day = 1st day of the month/Mask = all
fields are masked).
Parameters
RTC_AlarmStruct: pointer to a LL_RTC_AlarmTypeDef
structure which will be initialized.
Return values
None
LL_RTC_EnterInitMode
Function name
ErrorStatus LL_RTC_EnterInitMode (RTC_TypeDef * RTCx)
Function description
Enters the RTC Initialization mode.
Parameters
RTCx: RTC Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC is in Init mode
ERROR: RTC is not in Init mode
Notes
The RTC Initialization mode is write protected, use the
LL_RTC_DisableWriteProtection before calling this function.
LL_RTC_ExitInitMode
Function name
ErrorStatus LL_RTC_ExitInitMode (RTC_TypeDef * RTCx)
Function description
Exit the RTC Initialization mode.
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Parameters
RTCx: RTC Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC exited from in Init mode
ERROR: Not applicable
Notes
When the initialization sequence is complete, the calendar
restarts counting after 4 RTCCLK cycles.
The RTC Initialization mode is write protected, use the
LL_RTC_DisableWriteProtection before calling this function.
LL_RTC_WaitForSynchro
Function name
ErrorStatus LL_RTC_WaitForSynchro (RTC_TypeDef * RTCx)
Function description
Waits until the RTC Time and Day registers (RTC_TR and
RTC_DR) are synchronized with RTC APB clock.
Parameters
RTCx: RTC Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: RTC registers are synchronised
ERROR: RTC registers are not synchronised
Notes
The RTC Resynchronization mode is write protected, use the
LL_RTC_DisableWriteProtection before calling this function.
To read the calendar through the shadow registers after
Calendar initialization, calendar update or after wakeup from
low power modes the software must first clear the RSF flag.
The software must then wait until it is set again before reading
the calendar, which means that the calendar registers have
been correctly copied into the RTC_TR and RTC_DR shadow
registers.
71.3 RTC Firmware driver defines
71.3.1 RTC
ALARM OUTPUT
LL_RTC_ALARMOUT_DISABLE
Output disabled
LL_RTC_ALARMOUT_ALMA
Alarm A output enabled
LL_RTC_ALARMOUT_ALMB
Alarm B output enabled
LL_RTC_ALARMOUT_WAKEUP
Wakeup output enabled
ALARM OUTPUT TYPE
LL_RTC_ALARM_OUTPUTTYPE_OPENDRAIN
RTC_ALARM, when mapped on PC13,
is open-drain output
LL_RTC_ALARM_OUTPUTTYPE_PUSHPULL
RTC_ALARM, when mapped on PC13,
is push-pull output
ALARMA MASK
LL_RTC_ALMA_MASK_NONE
No masks applied on Alarm A
LL_RTC_ALMA_MASK_DATEWEEKDAY
Date/day do not care in Alarm A comparison
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LL_RTC_ALMA_MASK_HOURS
Hours do not care in Alarm A comparison
LL_RTC_ALMA_MASK_MINUTES
Minutes do not care in Alarm A comparison
LL_RTC_ALMA_MASK_SECONDS
Seconds do not care in Alarm A comparison
LL_RTC_ALMA_MASK_ALL
Masks all
ALARMA TIME FORMAT
LL_RTC_ALMA_TIME_FORMAT_AM
AM or 24-hour format
LL_RTC_ALMA_TIME_FORMAT_PM
PM
RTC Alarm A Date WeekDay
LL_RTC_ALMA_DATEWEEKDAYSEL_DATE
Alarm A Date is selected
LL_RTC_ALMA_DATEWEEKDAYSEL_WEEKDAY
Alarm A WeekDay is selected
ALARMB MASK
LL_RTC_ALMB_MASK_NONE
No masks applied on Alarm B
LL_RTC_ALMB_MASK_DATEWEEKDAY
Date/day do not care in Alarm B comparison
LL_RTC_ALMB_MASK_HOURS
Hours do not care in Alarm B comparison
LL_RTC_ALMB_MASK_MINUTES
Minutes do not care in Alarm B comparison
LL_RTC_ALMB_MASK_SECONDS
Seconds do not care in Alarm B comparison
LL_RTC_ALMB_MASK_ALL
Masks all
ALARMB TIME FORMAT
LL_RTC_ALMB_TIME_FORMAT_AM
AM or 24-hour format
LL_RTC_ALMB_TIME_FORMAT_PM
PM
RTC Alarm B Date WeekDay
LL_RTC_ALMB_DATEWEEKDAYSEL_DATE
Alarm B Date is selected
LL_RTC_ALMB_DATEWEEKDAYSEL_WEEKDAY
Alarm B WeekDay is selected
BACKUP
LL_RTC_BKP_DR0
LL_RTC_BKP_DR1
LL_RTC_BKP_DR2
LL_RTC_BKP_DR3
LL_RTC_BKP_DR4
Calibration pulse insertion
LL_RTC_CALIB_INSERTPULSE_NONE
No RTCCLK pulses are added
LL_RTC_CALIB_INSERTPULSE_SET
One RTCCLK pulse is effectively inserted every
2exp11 pulses (frequency increased by 488.5
ppm)
Calibration output
LL_RTC_CALIB_OUTPUT_NONE
Calibration output disabled
LL_RTC_CALIB_OUTPUT_1HZ
Calibration output is 512 Hz
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LL_RTC_CALIB_OUTPUT_512HZ
Calibration output is 1 Hz
Calibration period
LL_RTC_CALIB_PERIOD_32SEC
Use a 32-second calibration cycle period
LL_RTC_CALIB_PERIOD_16SEC
Use a 16-second calibration cycle period
LL_RTC_CALIB_PERIOD_8SEC
Use a 8-second calibration cycle period
FORMAT
LL_RTC_FORMAT_BIN
Binary data format
LL_RTC_FORMAT_BCD
BCD data format
Get Flags Defines
LL_RTC_ISR_RECALPF
LL_RTC_ISR_TAMP3F
LL_RTC_ISR_TAMP2F
LL_RTC_ISR_TAMP1F
LL_RTC_ISR_TSOVF
LL_RTC_ISR_TSF
LL_RTC_ISR_WUTF
LL_RTC_ISR_ALRBF
LL_RTC_ISR_ALRAF
LL_RTC_ISR_INITF
LL_RTC_ISR_RSF
LL_RTC_ISR_INITS
LL_RTC_ISR_SHPF
LL_RTC_ISR_WUTWF
LL_RTC_ISR_ALRBWF
LL_RTC_ISR_ALRAWF
HOUR FORMAT
LL_RTC_HOURFORMAT_24HOUR
24 hour/day format
LL_RTC_HOURFORMAT_AMPM
AM/PM hour format
IT Defines
LL_RTC_CR_TSIE
LL_RTC_CR_WUTIE
LL_RTC_CR_ALRBIE
LL_RTC_CR_ALRAIE
LL_RTC_TAMPCR_TAMP3IE
LL_RTC_TAMPCR_TAMP2IE
LL_RTC_TAMPCR_TAMP1IE
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LL_RTC_TAMPCR_TAMPIE
MONTH
LL_RTC_MONTH_JANUARY
January
LL_RTC_MONTH_FEBRUARY
February
LL_RTC_MONTH_MARCH
March
LL_RTC_MONTH_APRIL
April
LL_RTC_MONTH_MAY
May
LL_RTC_MONTH_JUNE
June
LL_RTC_MONTH_JULY
July
LL_RTC_MONTH_AUGUST
August
LL_RTC_MONTH_SEPTEMBER
September
LL_RTC_MONTH_OCTOBER
October
LL_RTC_MONTH_NOVEMBER
November
LL_RTC_MONTH_DECEMBER
December
OUTPUT POLARITY PIN
LL_RTC_OUTPUTPOLARITY_PIN_HIGH
Pin is high when ALRAF/ALRBF/WUTF is
asserted (depending on OSEL)
LL_RTC_OUTPUTPOLARITY_PIN_LOW
Pin is low when ALRAF/ALRBF/WUTF is
asserted (depending on OSEL)
SHIFT SECOND
LL_RTC_SHIFT_SECOND_DELAY
LL_RTC_SHIFT_SECOND_ADVANCE
TAMPER
LL_RTC_TAMPER_1
RTC_TAMP1 input detection
LL_RTC_TAMPER_2
RTC_TAMP2 input detection
LL_RTC_TAMPER_3
RTC_TAMP3 input detection
TAMPER ACTIVE LEVEL
LL_RTC_TAMPER_ACTIVELEVEL_TAMP1
RTC_TAMP1 input falling edge (if
TAMPFLT = 00) or staying high (if
TAMPFLT != 00) triggers a tamper detection
event
LL_RTC_TAMPER_ACTIVELEVEL_TAMP2
RTC_TAMP2 input falling edge (if
TAMPFLT = 00) or staying high (if
TAMPFLT != 00) triggers a tamper detection
event
LL_RTC_TAMPER_ACTIVELEVEL_TAMP3
RTC_TAMP3 input falling edge (if
TAMPFLT = 00) or staying high (if
TAMPFLT != 00) triggers a tamper detection
event
TAMPER DURATION
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LL_RTC_TAMPER_DURATION_1RTCCLK
Tamper pins are pre-charged before
sampling during 1 RTCCLK cycle
LL_RTC_TAMPER_DURATION_2RTCCLK
Tamper pins are pre-charged before
sampling during 2 RTCCLK cycles
LL_RTC_TAMPER_DURATION_4RTCCLK
Tamper pins are pre-charged before
sampling during 4 RTCCLK cycles
LL_RTC_TAMPER_DURATION_8RTCCLK
Tamper pins are pre-charged before
sampling during 8 RTCCLK cycles
TAMPER FILTER
LL_RTC_TAMPER_FILTER_DISABLE
Tamper filter is disabled
LL_RTC_TAMPER_FILTER_2SAMPLE
Tamper is activated after 2 consecutive samples
at the active level
LL_RTC_TAMPER_FILTER_4SAMPLE
Tamper is activated after 4 consecutive samples
at the active level
LL_RTC_TAMPER_FILTER_8SAMPLE
Tamper is activated after 8 consecutive samples
at the active level.
TAMPER MASK
LL_RTC_TAMPER_MASK_TAMPER1
Tamper 1 event generates a trigger event.
TAMP1F is masked and internally cleared by
hardware.The backup registers are not erased
LL_RTC_TAMPER_MASK_TAMPER2
Tamper 2 event generates a trigger event.
TAMP2F is masked and internally cleared by
hardware. The backup registers are not erased.
LL_RTC_TAMPER_MASK_TAMPER3
Tamper 3 event generates a trigger event.
TAMP3F is masked and internally cleared by
hardware. The backup registers are not erased
TAMPER NO ERASE
LL_RTC_TAMPER_NOERASE_TAMPER1
Tamper 1 event does not erase the backup
registers.
LL_RTC_TAMPER_NOERASE_TAMPER2
Tamper 2 event does not erase the backup
registers.
LL_RTC_TAMPER_NOERASE_TAMPER3
Tamper 3 event does not erase the backup
registers.
TAMPER SAMPLING FREQUENCY DIVIDER
LL_RTC_TAMPER_SAMPLFREQDIV_32768
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 32768
LL_RTC_TAMPER_SAMPLFREQDIV_16384
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 16384
LL_RTC_TAMPER_SAMPLFREQDIV_8192
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 8192
LL_RTC_TAMPER_SAMPLFREQDIV_4096
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 4096
LL_RTC_TAMPER_SAMPLFREQDIV_2048
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 2048
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LL_RTC_TAMPER_SAMPLFREQDIV_1024
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 1024
LL_RTC_TAMPER_SAMPLFREQDIV_512
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 512
LL_RTC_TAMPER_SAMPLFREQDIV_256
Each of the tamper inputs are sampled
with a frequency = RTCCLK / 256
TIMESTAMP EDGE
LL_RTC_TIMESTAMP_EDGE_RISING
RTC_TS input rising edge generates a time-
stamp event
LL_RTC_TIMESTAMP_EDGE_FALLING
RTC_TS input falling edge generates a time-
stamp even
TIME FORMAT
LL_RTC_TIME_FORMAT_AM_OR_24
AM or 24-hour format
LL_RTC_TIME_FORMAT_PM
PM
TIMESTAMP TIME FORMAT
LL_RTC_TS_TIME_FORMAT_AM
AM or 24-hour format
LL_RTC_TS_TIME_FORMAT_PM
PM
WAKEUP CLOCK DIV
LL_RTC_WAKEUPCLOCK_DIV_16
RTC/16 clock is selected
LL_RTC_WAKEUPCLOCK_DIV_8
RTC/8 clock is selected
LL_RTC_WAKEUPCLOCK_DIV_4
RTC/4 clock is selected
LL_RTC_WAKEUPCLOCK_DIV_2
RTC/2 clock is selected
LL_RTC_WAKEUPCLOCK_CKSPRE
ck_spre (usually 1 Hz) clock is selected
LL_RTC_WAKEUPCLOCK_CKSPRE_WUT
ck_spre (usually 1 Hz) clock is selected and
2exp16 is added to the WUT counter value
WEEK DAY
LL_RTC_WEEKDAY_MONDAY
Monday
LL_RTC_WEEKDAY_TUESDAY
Tuesday
LL_RTC_WEEKDAY_WEDNESDAY
Wednesday
LL_RTC_WEEKDAY_THURSDAY
Thrusday
LL_RTC_WEEKDAY_FRIDAY
Friday
LL_RTC_WEEKDAY_SATURDAY
Saturday
LL_RTC_WEEKDAY_SUNDAY
Sunday
Convert helper Macros
__LL_RTC_CONVERT_BIN2BCD
Description:
Helper macro to convert a value from 2 digit
decimal format to BCD format.
Parameters:
__VALUE__: Byte to be converted
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Return value:
Converted: byte
__LL_RTC_CONVERT_BCD2BIN
Description:
Helper macro to convert a value from BCD format
to 2 digit decimal format.
Parameters:
__VALUE__: BCD value to be converted
Return value:
Converted: byte
Date helper Macros
__LL_RTC_GET_WEEKDAY
Description:
Helper macro to retrieve weekday.
Parameters:
__RTC_DATE__: Date returned by
Return value:
Returned: value can be one of the following values:
LL_RTC_WEEKDAY_MONDAY
LL_RTC_WEEKDAY_TUESDAY
LL_RTC_WEEKDAY_WEDNESDAY
LL_RTC_WEEKDAY_THURSDAY
LL_RTC_WEEKDAY_FRIDAY
LL_RTC_WEEKDAY_SATURDAY
LL_RTC_WEEKDAY_SUNDAY
__LL_RTC_GET_YEAR
Description:
Helper macro to retrieve Year in BCD format.
Parameters:
__RTC_DATE__: Value returned by
Return value:
Year: in BCD format (0x00 . . . 0x99)
__LL_RTC_GET_MONTH
Description:
Helper macro to retrieve Month in BCD format.
Parameters:
__RTC_DATE__: Value returned by
Return value:
Returned: value can be one of the following values:
LL_RTC_MONTH_JANUARY
LL_RTC_MONTH_FEBRUARY
LL_RTC_MONTH_MARCH
LL_RTC_MONTH_APRIL
LL_RTC_MONTH_MAY
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LL_RTC_MONTH_JUNE
LL_RTC_MONTH_JULY
LL_RTC_MONTH_AUGUST
LL_RTC_MONTH_SEPTEMBER
LL_RTC_MONTH_OCTOBER
LL_RTC_MONTH_NOVEMBER
LL_RTC_MONTH_DECEMBER
__LL_RTC_GET_DAY
Description:
Helper macro to retrieve Day in BCD format.
Parameters:
__RTC_DATE__: Value returned by
Return value:
Day: in BCD format (0x01 . . . 0x31)
Time helper Macros
__LL_RTC_GET_HOUR
Description:
Helper macro to retrieve hour in BCD format.
Parameters:
__RTC_TIME__: RTC time returned by
Return value:
Hours: in BCD format (0x01. . .0x12 or between
Min_Data=0x00 and Max_Data=0x23)
__LL_RTC_GET_MINUTE
Description:
Helper macro to retrieve minute in BCD format.
Parameters:
__RTC_TIME__: RTC time returned by
Return value:
Minutes: in BCD format (0x00. . .0x59)
__LL_RTC_GET_SECOND
Description:
Helper macro to retrieve second in BCD format.
Parameters:
__RTC_TIME__: RTC time returned by
Return value:
Seconds: in format (0x00. . .0x59)
Common Write and read registers Macros
LL_RTC_WriteReg
Description:
Write a value in RTC register.
Parameters:
__INSTANCE__: RTC Instance
__REG__: Register to be written
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__VALUE__: Value to be written in the register
Return value:
None
LL_RTC_ReadReg
Description:
Read a value in RTC register.
Parameters:
__INSTANCE__: RTC Instance
__REG__: Register to be read
Return value:
Register: value
LL SPI Generic Driver
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72 LL SPI Generic Driver
72.1 SPI Firmware driver registers structures
72.1.1 LL_SPI_InitTypeDef
Data Fields
uint32_t TransferDirection
uint32_t Mode
uint32_t DataWidth
uint32_t ClockPolarity
uint32_t ClockPhase
uint32_t NSS
uint32_t BaudRate
uint32_t BitOrder
uint32_t CRCCalculation
uint32_t CRCPoly
Field Documentation
uint32_t LL_SPI_InitTypeDef::TransferDirection
Specifies the SPI unidirectional or bidirectional data mode. This parameter can be a
value of SPI_LL_EC_TRANSFER_MODE.This feature can be modified afterwards
using unitary function LL_SPI_SetTransferDirection().
uint32_t LL_SPI_InitTypeDef::Mode
Specifies the SPI mode (Master/Slave). This parameter can be a value of
SPI_LL_EC_MODE.This feature can be modified afterwards using unitary function
LL_SPI_SetMode().
uint32_t LL_SPI_InitTypeDef::DataWidth
Specifies the SPI data width. This parameter can be a value of
SPI_LL_EC_DATAWIDTH.This feature can be modified afterwards using unitary
function LL_SPI_SetDataWidth().
uint32_t LL_SPI_InitTypeDef::ClockPolarity
Specifies the serial clock steady state. This parameter can be a value of
SPI_LL_EC_POLARITY.This feature can be modified afterwards using unitary
function LL_SPI_SetClockPolarity().
uint32_t LL_SPI_InitTypeDef::ClockPhase
Specifies the clock active edge for the bit capture. This parameter can be a value of
SPI_LL_EC_PHASE.This feature can be modified afterwards using unitary function
LL_SPI_SetClockPhase().
uint32_t LL_SPI_InitTypeDef::NSS
Specifies whether the NSS signal is managed by hardware (NSS pin) or by software
using the SSI bit. This parameter can be a value of SPI_LL_EC_NSS_MODE.This
feature can be modified afterwards using unitary function LL_SPI_SetNSSMode().
uint32_t LL_SPI_InitTypeDef::BaudRate
Specifies the BaudRate prescaler value which will be used to configure the transmit
and receive SCK clock. This parameter can be a value of
SPI_LL_EC_BAUDRATEPRESCALER.
Note:The communication clock is derived from the master clock. The slave clock does
not need to be set. This feature can be modified afterwards using unitary function
LL_SPI_SetBaudRatePrescaler().
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uint32_t LL_SPI_InitTypeDef::BitOrder
Specifies whether data transfers start from MSB or LSB bit. This parameter can be a
value of SPI_LL_EC_BIT_ORDER.This feature can be modified afterwards using
unitary function LL_SPI_SetTransferBitOrder().
uint32_t LL_SPI_InitTypeDef::CRCCalculation
Specifies if the CRC calculation is enabled or not. This parameter can be a value of
SPI_LL_EC_CRC_CALCULATION.This feature can be modified afterwards using
unitary functions LL_SPI_EnableCRC() and LL_SPI_DisableCRC().
uint32_t LL_SPI_InitTypeDef::CRCPoly
Specifies the polynomial used for the CRC calculation. This parameter must be a
number between Min_Data = 0x00 and Max_Data = 0xFFFF.This feature can be
modified afterwards using unitary function LL_SPI_SetCRCPolynomial().
72.2 SPI Firmware driver API description
72.2.1 Detailed description of functions
LL_SPI_Enable
Function name
__STATIC_INLINE void LL_SPI_Enable (SPI_TypeDef * SPIx)
Function description
Enable SPI peripheral.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 SPE LL_SPI_Enable
LL_SPI_Disable
Function name
__STATIC_INLINE void LL_SPI_Disable (SPI_TypeDef * SPIx)
Function description
Disable SPI peripheral.
Parameters
SPIx: SPI Instance
Return values
None
Notes
When disabling the SPI, follow the procedure described in the
Reference Manual.
Reference Manual to
LL API cross
reference:
CR1 SPE LL_SPI_Disable
LL_SPI_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabled (SPI_TypeDef *
SPIx)
Function description
Check if SPI peripheral is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
CR1 SPE LL_SPI_IsEnabled
LL SPI Generic Driver
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LL_SPI_SetMode
Function name
__STATIC_INLINE void LL_SPI_SetMode (SPI_TypeDef * SPIx,
uint32_t Mode)
Function description
Set SPI operation mode to Master or Slave.
Parameters
SPIx: SPI Instance
Mode: This parameter can be one of the following values:
LL_SPI_MODE_MASTER
LL_SPI_MODE_SLAVE
Return values
None
Notes
This bit should not be changed when communication is
ongoing.
Reference Manual to
LL API cross
reference:
CR1 MSTR LL_SPI_SetMode
CR1 SSI LL_SPI_SetMode
LL_SPI_GetMode
Function name
__STATIC_INLINE uint32_t LL_SPI_GetMode (SPI_TypeDef *
SPIx)
Function description
Get SPI operation mode (Master or Slave)
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_MODE_MASTER
LL_SPI_MODE_SLAVE
Reference Manual to
LL API cross
reference:
CR1 MSTR LL_SPI_GetMode
CR1 SSI LL_SPI_GetMode
LL_SPI_SetStandard
Function name
__STATIC_INLINE void LL_SPI_SetStandard (SPI_TypeDef *
SPIx, uint32_t Standard)
Function description
Set serial protocol used.
Parameters
SPIx: SPI Instance
Standard: This parameter can be one of the following
values:
LL_SPI_PROTOCOL_MOTOROLA
LL_SPI_PROTOCOL_TI
Return values
None
Notes
This bit should be written only when SPI is disabled (SPE = 0)
for correct operation.
Reference Manual to
LL API cross
CR2 FRF LL_SPI_SetStandard
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LL_SPI_GetStandard
Function name
__STATIC_INLINE uint32_t LL_SPI_GetStandard (SPI_TypeDef
* SPIx)
Function description
Get serial protocol used.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_PROTOCOL_MOTOROLA
LL_SPI_PROTOCOL_TI
Reference Manual to
LL API cross
reference:
CR2 FRF LL_SPI_GetStandard
LL_SPI_SetClockPhase
Function name
__STATIC_INLINE void LL_SPI_SetClockPhase (SPI_TypeDef
* SPIx, uint32_t ClockPhase)
Function description
Set clock phase.
Parameters
SPIx: SPI Instance
ClockPhase: This parameter can be one of the following
values:
LL_SPI_PHASE_1EDGE
LL_SPI_PHASE_2EDGE
Return values
None
Notes
This bit should not be changed when communication is
ongoing. This bit is not used in SPI TI mode.
Reference Manual to
LL API cross
reference:
CR1 CPHA LL_SPI_SetClockPhase
LL_SPI_GetClockPhase
Function name
__STATIC_INLINE uint32_t LL_SPI_GetClockPhase
(SPI_TypeDef * SPIx)
Function description
Get clock phase.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_PHASE_1EDGE
LL_SPI_PHASE_2EDGE
Reference Manual to
LL API cross
reference:
CR1 CPHA LL_SPI_GetClockPhase
LL SPI Generic Driver
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LL_SPI_SetClockPolarity
Function name
__STATIC_INLINE void LL_SPI_SetClockPolarity
(SPI_TypeDef * SPIx, uint32_t ClockPolarity)
Function description
Set clock polarity.
Parameters
SPIx: SPI Instance
ClockPolarity: This parameter can be one of the following
values:
LL_SPI_POLARITY_LOW
LL_SPI_POLARITY_HIGH
Return values
None
Notes
This bit should not be changed when communication is
ongoing. This bit is not used in SPI TI mode.
Reference Manual to
LL API cross
reference:
CR1 CPOL LL_SPI_SetClockPolarity
LL_SPI_GetClockPolarity
Function name
__STATIC_INLINE uint32_t LL_SPI_GetClockPolarity
(SPI_TypeDef * SPIx)
Function description
Get clock polarity.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_POLARITY_LOW
LL_SPI_POLARITY_HIGH
Reference Manual to
LL API cross
reference:
CR1 CPOL LL_SPI_GetClockPolarity
LL_SPI_SetBaudRatePrescaler
Function name
__STATIC_INLINE void LL_SPI_SetBaudRatePrescaler
(SPI_TypeDef * SPIx, uint32_t BaudRate)
Function description
Set baud rate prescaler.
Parameters
SPIx: SPI Instance
BaudRate: This parameter can be one of the following
values:
LL_SPI_BAUDRATEPRESCALER_DIV2
LL_SPI_BAUDRATEPRESCALER_DIV4
LL_SPI_BAUDRATEPRESCALER_DIV8
LL_SPI_BAUDRATEPRESCALER_DIV16
LL_SPI_BAUDRATEPRESCALER_DIV32
LL_SPI_BAUDRATEPRESCALER_DIV64
LL_SPI_BAUDRATEPRESCALER_DIV128
LL_SPI_BAUDRATEPRESCALER_DIV256
Return values
None
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Notes
These bits should not be changed when communication is
ongoing. SPI BaudRate = fPCLK/Prescaler.
Reference Manual to
LL API cross
reference:
CR1 BR LL_SPI_SetBaudRatePrescaler
LL_SPI_GetBaudRatePrescaler
Function name
__STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler
(SPI_TypeDef * SPIx)
Function description
Get baud rate prescaler.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_BAUDRATEPRESCALER_DIV2
LL_SPI_BAUDRATEPRESCALER_DIV4
LL_SPI_BAUDRATEPRESCALER_DIV8
LL_SPI_BAUDRATEPRESCALER_DIV16
LL_SPI_BAUDRATEPRESCALER_DIV32
LL_SPI_BAUDRATEPRESCALER_DIV64
LL_SPI_BAUDRATEPRESCALER_DIV128
LL_SPI_BAUDRATEPRESCALER_DIV256
Reference Manual to
LL API cross
reference:
CR1 BR LL_SPI_GetBaudRatePrescaler
LL_SPI_SetTransferBitOrder
Function name
__STATIC_INLINE void LL_SPI_SetTransferBitOrder
(SPI_TypeDef * SPIx, uint32_t BitOrder)
Function description
Set transfer bit order.
Parameters
SPIx: SPI Instance
BitOrder: This parameter can be one of the following values:
LL_SPI_LSB_FIRST
LL_SPI_MSB_FIRST
Return values
None
Notes
This bit should not be changed when communication is
ongoing. This bit is not used in SPI TI mode.
Reference Manual to
LL API cross
reference:
CR1 LSBFIRST LL_SPI_SetTransferBitOrder
LL_SPI_GetTransferBitOrder
Function name
__STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder
(SPI_TypeDef * SPIx)
Function description
Get transfer bit order.
Parameters
SPIx: SPI Instance
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Return values
Returned: value can be one of the following values:
LL_SPI_LSB_FIRST
LL_SPI_MSB_FIRST
Reference Manual to
LL API cross
reference:
CR1 LSBFIRST LL_SPI_GetTransferBitOrder
LL_SPI_SetTransferDirection
Function name
__STATIC_INLINE void LL_SPI_SetTransferDirection
(SPI_TypeDef * SPIx, uint32_t TransferDirection)
Function description
Set transfer direction mode.
Parameters
SPIx: SPI Instance
TransferDirection: This parameter can be one of the
following values:
LL_SPI_FULL_DUPLEX
LL_SPI_SIMPLEX_RX
LL_SPI_HALF_DUPLEX_RX
LL_SPI_HALF_DUPLEX_TX
Return values
None
Notes
For Half-Duplex mode, Rx Direction is set by default. In
master mode, the MOSI pin is used and in slave mode, the
MISO pin is used for Half-Duplex.
Reference Manual to
LL API cross
reference:
CR1 RXONLY LL_SPI_SetTransferDirection
CR1 BIDIMODE LL_SPI_SetTransferDirection
CR1 BIDIOE LL_SPI_SetTransferDirection
LL_SPI_GetTransferDirection
Function name
__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection
(SPI_TypeDef * SPIx)
Function description
Get transfer direction mode.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_FULL_DUPLEX
LL_SPI_SIMPLEX_RX
LL_SPI_HALF_DUPLEX_RX
LL_SPI_HALF_DUPLEX_TX
Reference Manual to
LL API cross
reference:
CR1 RXONLY LL_SPI_GetTransferDirection
CR1 BIDIMODE LL_SPI_GetTransferDirection
CR1 BIDIOE LL_SPI_GetTransferDirection
LL_SPI_SetDataWidth
Function name
__STATIC_INLINE void LL_SPI_SetDataWidth (SPI_TypeDef *
SPIx, uint32_t DataWidth)
Function description
Set frame data width.
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Parameters
SPIx: SPI Instance
DataWidth: This parameter can be one of the following
values:
LL_SPI_DATAWIDTH_8BIT
LL_SPI_DATAWIDTH_16BIT
Return values
None
Reference Manual to
LL API cross
reference:
CR1 DFF LL_SPI_SetDataWidth
LL_SPI_GetDataWidth
Function name
__STATIC_INLINE uint32_t LL_SPI_GetDataWidth
(SPI_TypeDef * SPIx)
Function description
Get frame data width.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_DATAWIDTH_8BIT
LL_SPI_DATAWIDTH_16BIT
Reference Manual to
LL API cross
reference:
CR1 DFF LL_SPI_GetDataWidth
LL_SPI_EnableCRC
Function name
__STATIC_INLINE void LL_SPI_EnableCRC (SPI_TypeDef *
SPIx)
Function description
Enable CRC.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit should be written only when SPI is disabled (SPE = 0)
for correct operation.
Reference Manual to
LL API cross
reference:
CR1 CRCEN LL_SPI_EnableCRC
LL_SPI_DisableCRC
Function name
__STATIC_INLINE void LL_SPI_DisableCRC (SPI_TypeDef *
SPIx)
Function description
Disable CRC.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit should be written only when SPI is disabled (SPE = 0)
for correct operation.
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Reference Manual to
LL API cross
reference:
CR1 CRCEN LL_SPI_DisableCRC
LL_SPI_IsEnabledCRC
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledCRC
(SPI_TypeDef * SPIx)
Function description
Check if CRC is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Notes
This bit should be written only when SPI is disabled (SPE = 0)
for correct operation.
Reference Manual to
LL API cross
reference:
CR1 CRCEN LL_SPI_IsEnabledCRC
LL_SPI_SetCRCNext
Function name
__STATIC_INLINE void LL_SPI_SetCRCNext (SPI_TypeDef *
SPIx)
Function description
Set CRCNext to transfer CRC on the line.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit has to be written as soon as the last data is written in
the SPIx_DR register.
Reference Manual to
LL API cross
reference:
CR1 CRCNEXT LL_SPI_SetCRCNext
LL_SPI_SetCRCPolynomial
Function name
__STATIC_INLINE void LL_SPI_SetCRCPolynomial
(SPI_TypeDef * SPIx, uint32_t CRCPoly)
Function description
Set polynomial for CRC calculation.
Parameters
SPIx: SPI Instance
CRCPoly: This parameter must be a number between
Min_Data = 0x00 and Max_Data = 0xFFFF
Return values
None
Reference Manual to
LL API cross
reference:
CRCPR CRCPOLY LL_SPI_SetCRCPolynomial
LL_SPI_GetCRCPolynomial
Function name
__STATIC_INLINE uint32_t LL_SPI_GetCRCPolynomial
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(SPI_TypeDef * SPIx)
Function description
Get polynomial for CRC calculation.
Parameters
SPIx: SPI Instance
Return values
Returned: value is a number between Min_Data = 0x00 and
Max_Data = 0xFFFF
Reference Manual to
LL API cross
reference:
CRCPR CRCPOLY LL_SPI_GetCRCPolynomial
LL_SPI_GetRxCRC
Function name
__STATIC_INLINE uint32_t LL_SPI_GetRxCRC (SPI_TypeDef *
SPIx)
Function description
Get Rx CRC.
Parameters
SPIx: SPI Instance
Return values
Returned: value is a number between Min_Data = 0x00 and
Max_Data = 0xFFFF
Reference Manual to
LL API cross
reference:
RXCRCR RXCRC LL_SPI_GetRxCRC
LL_SPI_GetTxCRC
Function name
__STATIC_INLINE uint32_t LL_SPI_GetTxCRC (SPI_TypeDef *
SPIx)
Function description
Get Tx CRC.
Parameters
SPIx: SPI Instance
Return values
Returned: value is a number between Min_Data = 0x00 and
Max_Data = 0xFFFF
Reference Manual to
LL API cross
reference:
TXCRCR TXCRC LL_SPI_GetTxCRC
LL_SPI_SetNSSMode
Function name
__STATIC_INLINE void LL_SPI_SetNSSMode (SPI_TypeDef *
SPIx, uint32_t NSS)
Function description
Set NSS mode.
Parameters
SPIx: SPI Instance
NSS: This parameter can be one of the following values:
LL_SPI_NSS_SOFT
LL_SPI_NSS_HARD_INPUT
LL_SPI_NSS_HARD_OUTPUT
Return values
None
Notes
LL_SPI_NSS_SOFT Mode is not used in SPI TI mode.
LL SPI Generic Driver
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Reference Manual to
LL API cross
reference:
CR1 SSM LL_SPI_SetNSSMode
CR2 SSOE LL_SPI_SetNSSMode
LL_SPI_GetNSSMode
Function name
__STATIC_INLINE uint32_t LL_SPI_GetNSSMode
(SPI_TypeDef * SPIx)
Function description
Get NSS mode.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_NSS_SOFT
LL_SPI_NSS_HARD_INPUT
LL_SPI_NSS_HARD_OUTPUT
Reference Manual to
LL API cross
reference:
CR1 SSM LL_SPI_GetNSSMode
CR2 SSOE LL_SPI_GetNSSMode
LL_SPI_IsActiveFlag_RXNE
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_RXNE
(SPI_TypeDef * SPIx)
Function description
Check if Rx buffer is not empty.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR RXNE LL_SPI_IsActiveFlag_RXNE
LL_SPI_IsActiveFlag_TXE
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_TXE
(SPI_TypeDef * SPIx)
Function description
Check if Tx buffer is empty.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR TXE LL_SPI_IsActiveFlag_TXE
LL_SPI_IsActiveFlag_CRCERR
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_CRCERR
(SPI_TypeDef * SPIx)
Function description
Get CRC error flag.
Parameters
SPIx: SPI Instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CRCERR LL_SPI_IsActiveFlag_CRCERR
LL_SPI_IsActiveFlag_MODF
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_MODF
(SPI_TypeDef * SPIx)
Function description
Get mode fault error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR MODF LL_SPI_IsActiveFlag_MODF
LL_SPI_IsActiveFlag_OVR
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_OVR
(SPI_TypeDef * SPIx)
Function description
Get overrun error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR OVR LL_SPI_IsActiveFlag_OVR
LL_SPI_IsActiveFlag_BSY
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY
(SPI_TypeDef * SPIx)
Function description
Get busy flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Notes
The BSY flag is cleared under any one of the following
conditions: -When the SPI is correctly disabled -When a fault
is detected in Master mode (MODF bit set to 1) -In Master
mode, when it finishes a data transmission and no new data
is ready to be sent -In Slave mode, when the BSY flag is set
to '0' for at least one SPI clock cycle between each data
transfer.
Reference Manual to
LL API cross
reference:
SR BSY LL_SPI_IsActiveFlag_BSY
LL SPI Generic Driver
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LL_SPI_IsActiveFlag_FRE
Function name
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_FRE
(SPI_TypeDef * SPIx)
Function description
Get frame format error flag.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR FRE LL_SPI_IsActiveFlag_FRE
LL_SPI_ClearFlag_CRCERR
Function name
__STATIC_INLINE void LL_SPI_ClearFlag_CRCERR
(SPI_TypeDef * SPIx)
Function description
Clear CRC error flag.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CRCERR LL_SPI_ClearFlag_CRCERR
LL_SPI_ClearFlag_MODF
Function name
__STATIC_INLINE void LL_SPI_ClearFlag_MODF
(SPI_TypeDef * SPIx)
Function description
Clear mode fault error flag.
Parameters
SPIx: SPI Instance
Return values
None
Notes
Clearing this flag is done by a read access to the SPIx_SR
register followed by a write access to the SPIx_CR1 register
Reference Manual to
LL API cross
reference:
SR MODF LL_SPI_ClearFlag_MODF
LL_SPI_ClearFlag_OVR
Function name
__STATIC_INLINE void LL_SPI_ClearFlag_OVR (SPI_TypeDef
* SPIx)
Function description
Clear overrun error flag.
Parameters
SPIx: SPI Instance
Return values
None
Notes
Clearing this flag is done by a read access to the SPIx_DR
register followed by a read access to the SPIx_SR register
Reference Manual to
SR OVR LL_SPI_ClearFlag_OVR
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reference:
LL_SPI_ClearFlag_FRE
Function name
__STATIC_INLINE void LL_SPI_ClearFlag_FRE (SPI_TypeDef *
SPIx)
Function description
Clear frame format error flag.
Parameters
SPIx: SPI Instance
Return values
None
Notes
Clearing this flag is done by reading SPIx_SR register
Reference Manual to
LL API cross
reference:
SR FRE LL_SPI_ClearFlag_FRE
LL_SPI_EnableIT_ERR
Function name
__STATIC_INLINE void LL_SPI_EnableIT_ERR (SPI_TypeDef *
SPIx)
Function description
Enable error interrupt.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit controls the generation of an interrupt when an error
condition occurs (CRCERR, OVR, MODF in SPI mode, FRE
at TI mode).
Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_SPI_EnableIT_ERR
LL_SPI_EnableIT_RXNE
Function name
__STATIC_INLINE void LL_SPI_EnableIT_RXNE (SPI_TypeDef
* SPIx)
Function description
Enable Rx buffer not empty interrupt.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_SPI_EnableIT_RXNE
LL_SPI_EnableIT_TXE
Function name
__STATIC_INLINE void LL_SPI_EnableIT_TXE (SPI_TypeDef *
SPIx)
Function description
Enable Tx buffer empty interrupt.
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Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXEIE LL_SPI_EnableIT_TXE
LL_SPI_DisableIT_ERR
Function name
__STATIC_INLINE void LL_SPI_DisableIT_ERR (SPI_TypeDef *
SPIx)
Function description
Disable error interrupt.
Parameters
SPIx: SPI Instance
Return values
None
Notes
This bit controls the generation of an interrupt when an error
condition occurs (CRCERR, OVR, MODF in SPI mode, FRE
at TI mode).
Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_SPI_DisableIT_ERR
LL_SPI_DisableIT_RXNE
Function name
__STATIC_INLINE void LL_SPI_DisableIT_RXNE (SPI_TypeDef
* SPIx)
Function description
Disable Rx buffer not empty interrupt.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_SPI_DisableIT_RXNE
LL_SPI_DisableIT_TXE
Function name
__STATIC_INLINE void LL_SPI_DisableIT_TXE (SPI_TypeDef *
SPIx)
Function description
Disable Tx buffer empty interrupt.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXEIE LL_SPI_DisableIT_TXE
LL_SPI_IsEnabledIT_ERR
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_ERR
(SPI_TypeDef * SPIx)
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Function description
Check if error interrupt is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 ERRIE LL_SPI_IsEnabledIT_ERR
LL_SPI_IsEnabledIT_RXNE
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_RXNE
(SPI_TypeDef * SPIx)
Function description
Check if Rx buffer not empty interrupt is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RXNEIE LL_SPI_IsEnabledIT_RXNE
LL_SPI_IsEnabledIT_TXE
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_TXE
(SPI_TypeDef * SPIx)
Function description
Check if Tx buffer empty interrupt.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 TXEIE LL_SPI_IsEnabledIT_TXE
LL_SPI_EnableDMAReq_RX
Function name
__STATIC_INLINE void LL_SPI_EnableDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Enable DMA Rx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXDMAEN LL_SPI_EnableDMAReq_RX
LL_SPI_DisableDMAReq_RX
Function name
__STATIC_INLINE void LL_SPI_DisableDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Disable DMA Rx.
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Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXDMAEN LL_SPI_DisableDMAReq_RX
LL_SPI_IsEnabledDMAReq_RX
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_RX
(SPI_TypeDef * SPIx)
Function description
Check if DMA Rx is enabled.
Parameters
SPIx: SPI Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RXDMAEN LL_SPI_IsEnabledDMAReq_RX
LL_SPI_EnableDMAReq_TX
Function name
__STATIC_INLINE void LL_SPI_EnableDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Enable DMA Tx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_SPI_EnableDMAReq_TX
LL_SPI_DisableDMAReq_TX
Function name
__STATIC_INLINE void LL_SPI_DisableDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Disable DMA Tx.
Parameters
SPIx: SPI Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_SPI_DisableDMAReq_TX
LL_SPI_IsEnabledDMAReq_TX
Function name
__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_TX
(SPI_TypeDef * SPIx)
Function description
Check if DMA Tx is enabled.
Parameters
SPIx: SPI Instance
UM1749
LL SPI Generic Driver
DocID026232 Rev 6
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 TXDMAEN LL_SPI_IsEnabledDMAReq_TX
LL_SPI_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_SPI_DMA_GetRegAddr
(SPI_TypeDef * SPIx)
Function description
Get the data register address used for DMA transfer.
Parameters
SPIx: SPI Instance
Return values
Address: of data register
Reference Manual to
LL API cross
reference:
DR DR LL_SPI_DMA_GetRegAddr
LL_SPI_ReceiveData8
Function name
__STATIC_INLINE uint8_t LL_SPI_ReceiveData8 (SPI_TypeDef
* SPIx)
Function description
Read 8-Bits in the data register.
Parameters
SPIx: SPI Instance
Return values
RxData: Value between Min_Data=0x00 and
Max_Data=0xFF
Reference Manual to
LL API cross
reference:
DR DR LL_SPI_ReceiveData8
LL_SPI_ReceiveData16
Function name
__STATIC_INLINE uint16_t LL_SPI_ReceiveData16
(SPI_TypeDef * SPIx)
Function description
Read 16-Bits in the data register.
Parameters
SPIx: SPI Instance
Return values
RxData: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Reference Manual to
LL API cross
reference:
DR DR LL_SPI_ReceiveData16
LL_SPI_TransmitData8
Function name
__STATIC_INLINE void LL_SPI_TransmitData8 (SPI_TypeDef *
SPIx, uint8_t TxData)
Function description
Write 8-Bits in the data register.
Parameters
SPIx: SPI Instance
LL SPI Generic Driver
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TxData: Value between Min_Data=0x00 and
Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_SPI_TransmitData8
LL_SPI_TransmitData16
Function name
__STATIC_INLINE void LL_SPI_TransmitData16 (SPI_TypeDef
* SPIx, uint16_t TxData)
Function description
Write 16-Bits in the data register.
Parameters
SPIx: SPI Instance
TxData: Value between Min_Data=0x00 and
Max_Data=0xFFFF
Return values
None
Reference Manual to
LL API cross
reference:
DR DR LL_SPI_TransmitData16
LL_SPI_DeInit
Function name
ErrorStatus LL_SPI_DeInit (SPI_TypeDef * SPIx)
Function description
De-initialize the SPI registers to their default reset values.
Parameters
SPIx: SPI Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: SPI registers are de-initialized
ERROR: SPI registers are not de-initialized
LL_SPI_Init
Function name
ErrorStatus LL_SPI_Init (SPI_TypeDef * SPIx,
LL_SPI_InitTypeDef * SPI_InitStruct)
Function description
Initialize the SPI registers according to the specified parameters in
SPI_InitStruct.
Parameters
SPIx: SPI Instance
SPI_InitStruct: pointer to a LL_SPI_InitTypeDef structure
Return values
An: ErrorStatus enumeration value. (Return always
SUCCESS)
Notes
As some bits in SPI configuration registers can only be written
when the SPI is disabled (SPI_CR1_SPE bit =0), SPI IP
should be in disabled state prior calling this function.
Otherwise, ERROR result will be returned.
LL_SPI_StructInit
Function name
void LL_SPI_StructInit (LL_SPI_InitTypeDef * SPI_InitStruct)
UM1749
LL SPI Generic Driver
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Function description
Set each LL_SPI_InitTypeDef field to default value.
Parameters
SPI_InitStruct: pointer to a LL_SPI_InitTypeDef structure
whose fields will be set to default values.
Return values
None
72.3 SPI Firmware driver defines
72.3.1 SPI
Baud Rate Prescaler
LL_SPI_BAUDRATEPRESCALER_DIV2
BaudRate control equal to fPCLK/2
LL_SPI_BAUDRATEPRESCALER_DIV4
BaudRate control equal to fPCLK/4
LL_SPI_BAUDRATEPRESCALER_DIV8
BaudRate control equal to fPCLK/8
LL_SPI_BAUDRATEPRESCALER_DIV16
BaudRate control equal to fPCLK/16
LL_SPI_BAUDRATEPRESCALER_DIV32
BaudRate control equal to fPCLK/32
LL_SPI_BAUDRATEPRESCALER_DIV64
BaudRate control equal to fPCLK/64
LL_SPI_BAUDRATEPRESCALER_DIV128
BaudRate control equal to fPCLK/128
LL_SPI_BAUDRATEPRESCALER_DIV256
BaudRate control equal to fPCLK/256
Transmission Bit Order
LL_SPI_LSB_FIRST
Data is transmitted/received with the LSB first
LL_SPI_MSB_FIRST
Data is transmitted/received with the MSB first
CRC Calculation
LL_SPI_CRCCALCULATION_DISABLE
CRC calculation disabled
LL_SPI_CRCCALCULATION_ENABLE
CRC calculation enabled
Datawidth
LL_SPI_DATAWIDTH_8BIT
Data length for SPI transfer: 8 bits
LL_SPI_DATAWIDTH_16BIT
Data length for SPI transfer: 16 bits
Get Flags Defines
LL_SPI_SR_RXNE
Rx buffer not empty flag
LL_SPI_SR_TXE
Tx buffer empty flag
LL_SPI_SR_BSY
Busy flag
LL_SPI_SR_UDR
Underrun flag
LL_SPI_SR_CRCERR
CRC error flag
LL_SPI_SR_MODF
Mode fault flag
LL_SPI_SR_OVR
Overrun flag
LL_SPI_SR_FRE
TI mode frame format error flag
IT Defines
LL_SPI_CR2_RXNEIE
Rx buffer not empty interrupt enable
LL SPI Generic Driver
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LL_SPI_CR2_TXEIE
Tx buffer empty interrupt enable
LL_SPI_CR2_ERRIE
Error interrupt enable
Operation Mode
LL_SPI_MODE_MASTER
Master configuration
LL_SPI_MODE_SLAVE
Slave configuration
Slave Select Pin Mode
LL_SPI_NSS_SOFT
NSS managed internally. NSS pin not used and free
LL_SPI_NSS_HARD_INPUT
NSS pin used in Input. Only used in Master mode
LL_SPI_NSS_HARD_OUTPUT
NSS pin used in Output. Only used in Slave mode as
chip select
Clock Phase
LL_SPI_PHASE_1EDGE
First clock transition is the first data capture edge
LL_SPI_PHASE_2EDGE
Second clock transition is the first data capture edge
Clock Polarity
LL_SPI_POLARITY_LOW
Clock to 0 when idle
LL_SPI_POLARITY_HIGH
Clock to 1 when idle
Serial Protocol
LL_SPI_PROTOCOL_MOTOROLA
Motorola mode. Used as default value
LL_SPI_PROTOCOL_TI
TI mode
Transfer Mode
LL_SPI_FULL_DUPLEX
Full-Duplex mode. Rx and Tx transfer on 2 lines
LL_SPI_SIMPLEX_RX
Simplex Rx mode. Rx transfer only on 1 line
LL_SPI_HALF_DUPLEX_RX
Half-Duplex Rx mode. Rx transfer on 1 line
LL_SPI_HALF_DUPLEX_TX
Half-Duplex Tx mode. Tx transfer on 1 line
Common Write and read registers Macros
LL_SPI_WriteReg
Description:
Write a value in SPI register.
Parameters:
__INSTANCE__: SPI Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_SPI_ReadReg
Description:
Read a value in SPI register.
Parameters:
__INSTANCE__: SPI Instance
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__REG__: Register to be read
Return value:
Register: value
LL SYSTEM Generic Driver
UM1749
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73 LL SYSTEM Generic Driver
73.1 SYSTEM Firmware driver API description
73.1.1 Detailed description of functions
LL_SYSCFG_SetRemapMemory
Function name
__STATIC_INLINE void LL_SYSCFG_SetRemapMemory
(uint32_t Memory)
Function description
Set memory mapping at address 0x00000000.
Parameters
Memory: This parameter can be one of the following values:
LL_SYSCFG_REMAP_FLASH
LL_SYSCFG_REMAP_SYSTEMFLASH
LL_SYSCFG_REMAP_SRAM
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR1 MEM_MODE
LL_SYSCFG_SetRemapMemory
LL_SYSCFG_GetRemapMemory
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_GetRemapMemory
(void )
Function description
Get memory mapping at address 0x00000000.
Return values
Returned: value can be one of the following values:
LL_SYSCFG_REMAP_FLASH
LL_SYSCFG_REMAP_SYSTEMFLASH
LL_SYSCFG_REMAP_SRAM
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR1 MEM_MODE
LL_SYSCFG_GetRemapMemory
LL_SYSCFG_SetFlashBankMode
Function name
__STATIC_INLINE void LL_SYSCFG_SetFlashBankMode
(uint32_t Bank)
Function description
Select Flash bank mode (Bank flashed at 0x08000000)
Parameters
Bank: This parameter can be one of the following values:
LL_SYSCFG_BANKMODE_BANK1
LL_SYSCFG_BANKMODE_BANK2
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR1 UFB LL_SYSCFG_SetFlashBankMode
UM1749
LL SYSTEM Generic Driver
DocID026232 Rev 6
1221/1466
LL_SYSCFG_GetFlashBankMode
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_GetFlashBankMode
(void )
Function description
Get Flash bank mode (Bank flashed at 0x08000000)
Return values
Returned: value can be one of the following values:
LL_SYSCFG_BANKMODE_BANK1
LL_SYSCFG_BANKMODE_BANK2
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR1 UFB LL_SYSCFG_GetFlashBankMode
LL_SYSCFG_GetBootMode
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_GetBootMode (void )
Function description
Get Boot mode selected by the boot pins status bits.
Return values
Returned: value can be one of the following values:
LL_SYSCFG_BOOTMODE_FLASH
LL_SYSCFG_BOOTMODE_SYSTEMFLASH
LL_SYSCFG_BOOTMODE_SRAM
Notes
It indicates the boot mode selected by the boot pins. Bit 9
corresponds to the complement of nBOOT1 bit in the
FLASH_OPTR register. Its value is defined in the option
bytes. Bit 8 corresponds to the value sampled on the BOOT0
pin.
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR1 BOOT_MODE
LL_SYSCFG_GetBootMode
LL_SYSCFG_EnableFirewall
Function name
__STATIC_INLINE void LL_SYSCFG_EnableFirewall (void )
Function description
Firewall protection enabled.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 FWDIS LL_SYSCFG_EnableFirewall
LL_SYSCFG_IsEnabledFirewall
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_IsEnabledFirewall
(void )
Function description
Check if Firewall protection is enabled or not.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 FWDIS LL_SYSCFG_IsEnabledFirewall
LL SYSTEM Generic Driver
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LL_SYSCFG_SetVLCDRailConnection
Function name
__STATIC_INLINE void LL_SYSCFG_SetVLCDRailConnection
(uint32_t IoPinConnect)
Function description
Set VLCD rail connection to optional external capacitor.
Parameters
IoPinConnect: This parameter can be a combination of the
following values: (*) value not defined in all devices
LL_SYSCFG_CAPA_VLCD1_PB12
LL_SYSCFG_CAPA_VLCD1_PE11(*)
LL_SYSCFG_CAPA_VLCD2_PB2
LL_SYSCFG_CAPA_VLCD3_PB0
LL_SYSCFG_CAPA_VLCD3_PE12(*)
Return values
None
Notes
One to three external capacitors can be connected to pads to
do VLCD biasing. LCD_VLCD1 rail can be connected to PB12
or PE11(*),LCD_VLCD2 rail can be connected to
PB2,LCD_VLCD3 rail can be connected to PB0 or PE12(*)
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 CAPA
LL_SYSCFG_SetVLCDRailConnection
LL_SYSCFG_GetVLCDRailConnection
Function name
__STATIC_INLINE uint32_t
LL_SYSCFG_GetVLCDRailConnection (void )
Function description
Get VLCD rail connection configuration.
Return values
Returned: value can be a combination of the following
values: (*) value not defined in all devices
LL_SYSCFG_CAPA_VLCD1_PB12
LL_SYSCFG_CAPA_VLCD1_PE11(*)
LL_SYSCFG_CAPA_VLCD2_PB2
LL_SYSCFG_CAPA_VLCD3_PB0
LL_SYSCFG_CAPA_VLCD3_PE12(*)
Notes
One to three external capacitors can be connected to pads to
do VLCD biasing. LCD_VLCD1 rail can be connected to PB12
or PE11(*),LCD_VLCD2 rail can be connected to
PB2,LCD_VLCD3 rail can be connected to PB0 or PE12(*)
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 CAPA
LL_SYSCFG_GetVLCDRailConnection
LL_SYSCFG_EnableFastModePlus
Function name
__STATIC_INLINE void LL_SYSCFG_EnableFastModePlus
(uint32_t ConfigFastModePlus)
Function description
Enable the I2C fast mode plus driving capability.
Parameters
ConfigFastModePlus: This parameter can be a combination
of the following values: (*) value not defined in all devices
LL_SYSCFG_I2C_FASTMODEPLUS_PB6
UM1749
LL SYSTEM Generic Driver
DocID026232 Rev 6
1223/1466
LL_SYSCFG_I2C_FASTMODEPLUS_PB7
LL_SYSCFG_I2C_FASTMODEPLUS_PB8
LL_SYSCFG_I2C_FASTMODEPLUS_PB9
LL_SYSCFG_I2C_FASTMODEPLUS_I2C1
LL_SYSCFG_I2C_FASTMODEPLUS_I2C2 (*)
LL_SYSCFG_I2C_FASTMODEPLUS_I2C3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 I2C_PBx_FMP
LL_SYSCFG_EnableFastModePlus
SYSCFG_CFGR2 I2Cx_FMP
LL_SYSCFG_EnableFastModePlus
LL_SYSCFG_DisableFastModePlus
Function name
__STATIC_INLINE void LL_SYSCFG_DisableFastModePlus
(uint32_t ConfigFastModePlus)
Function description
Disable the I2C fast mode plus driving capability.
Parameters
ConfigFastModePlus: This parameter can be a combination
of the following values: (*) value not defined in all devices
LL_SYSCFG_I2C_FASTMODEPLUS_PB6
LL_SYSCFG_I2C_FASTMODEPLUS_PB7
LL_SYSCFG_I2C_FASTMODEPLUS_PB8
LL_SYSCFG_I2C_FASTMODEPLUS_PB9
LL_SYSCFG_I2C_FASTMODEPLUS_I2C1
LL_SYSCFG_I2C_FASTMODEPLUS_I2C2 (*)
LL_SYSCFG_I2C_FASTMODEPLUS_I2C3 (*)
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR2 I2C_PBx_FMP
LL_SYSCFG_DisableFastModePlus
SYSCFG_CFGR2 I2Cx_FMP
LL_SYSCFG_DisableFastModePlus
LL_SYSCFG_VREFINT_SetConnection
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_SetConnection
(uint32_t IoPinConnect)
Function description
Select which pad is connected to VREFINT_ADC.
Parameters
IoPinConnect: This parameter can be one of the following
values:
LL_SYSCFG_VREFINT_CONNECT_NONE
LL_SYSCFG_VREFINT_CONNECT_IO1
LL_SYSCFG_VREFINT_CONNECT_IO2
LL_SYSCFG_VREFINT_CONNECT_IO1_IO2
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 SEL_VREF_OUT
LL_SYSCFG_VREFINT_SetConnection
LL SYSTEM Generic Driver
UM1749
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LL_SYSCFG_VREFINT_GetConnection
Function name
__STATIC_INLINE uint32_t
LL_SYSCFG_VREFINT_GetConnection (void )
Function description
Get pad connection to VREFINT_ADC.
Return values
Returned: value can be one of the following values:
LL_SYSCFG_VREFINT_CONNECT_NONE
LL_SYSCFG_VREFINT_CONNECT_IO1
LL_SYSCFG_VREFINT_CONNECT_IO2
LL_SYSCFG_VREFINT_CONNECT_IO1_IO2
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 SEL_VREF_OUT
LL_SYSCFG_VREFINT_GetConnection
LL_SYSCFG_VREFINT_EnableADC
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_EnableADC
(void )
Function description
Buffer used to generate VREFINT reference for ADC enable.
Return values
None
Notes
The VrefInit buffer to ADC through internal path is also
enabled using function
LL_ADC_SetCommonPathInternalCh() with parameter
LL_ADC_PATH_INTERNAL_VREFINT
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_VREFINT_ADC
LL_SYSCFG_VREFINT_EnableADC
LL_SYSCFG_VREFINT_DisableADC
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_DisableADC
(void )
Function description
Buffer used to generate VREFINT reference for ADC disable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_VREFINT_ADC
LL_SYSCFG_VREFINT_DisableADC
LL_SYSCFG_TEMPSENSOR_Enable
Function name
__STATIC_INLINE void LL_SYSCFG_TEMPSENSOR_Enable
(void )
Function description
Buffer used to generate temperature sensor reference for ADC
enable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_SENSOR_ADC
LL_SYSCFG_TEMPSENSOR_Enable
UM1749
LL SYSTEM Generic Driver
DocID026232 Rev 6
1225/1466
LL_SYSCFG_TEMPSENSOR_Disable
Function name
__STATIC_INLINE void LL_SYSCFG_TEMPSENSOR_Disable
(void )
Function description
Buffer used to generate temperature sensor reference for ADC
disable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_SENSOR_ADC
LL_SYSCFG_TEMPSENSOR_Disable
LL_SYSCFG_VREFINT_EnableCOMP
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_EnableCOMP
(void )
Function description
Buffer used to generate VREFINT reference for comparator
enable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_VREFINT_COMP
LL_SYSCFG_VREFINT_EnableCOMP
LL_SYSCFG_VREFINT_DisableCOMP
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_DisableCOMP
(void )
Function description
Buffer used to generate VREFINT reference for comparator
disable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENBUF_VREFINT_COMP
LL_SYSCFG_VREFINT_DisableCOMP
LL_SYSCFG_VREFINT_EnableHSI48
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_EnableHSI48
(void )
Function description
Buffer used to generate VREFINT reference for HSI48 oscillator
enable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENREF_HSI48
LL_SYSCFG_VREFINT_EnableHSI48
LL_SYSCFG_VREFINT_DisableHSI48
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_DisableHSI48
(void )
LL SYSTEM Generic Driver
UM1749
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Function description
Buffer used to generate VREFINT reference for HSI48 oscillator
disable.
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 ENREF_HSI48
LL_SYSCFG_VREFINT_DisableHSI48
LL_SYSCFG_VREFINT_IsReady
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_VREFINT_IsReady
(void )
Function description
Check if VREFINT is ready or not.
Return values
State: of bit (1 or 0).
Notes
When set, it indicates that VREFINT is available for BOR,
PVD and LCD
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 VREFINT_RDYF
LL_SYSCFG_VREFINT_IsReady
LL_SYSCFG_VREFINT_Lock
Function name
__STATIC_INLINE void LL_SYSCFG_VREFINT_Lock (void )
Function description
Lock the whole content of SYSCFG_CFGR3 register.
Return values
None
Notes
After SYSCFG_CFGR3 register lock, only read access
available. Only system hardware reset unlocks
SYSCFG_CFGR3 register.
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 REF_LOCK LL_SYSCFG_VREFINT_Lock
LL_SYSCFG_VREFINT_IsLocked
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_VREFINT_IsLocked
(void )
Function description
Check if SYSCFG_CFGR3 register is locked (only read access) or
not.
Return values
State: of bit (1 or 0).
Notes
When set, it indicates that SYSCFG_CFGR3 register is
locked, only read access available
Reference Manual to
LL API cross
reference:
SYSCFG_CFGR3 REF_LOCK
LL_SYSCFG_VREFINT_IsLocked
LL_SYSCFG_SetEXTISource
Function name
__STATIC_INLINE void LL_SYSCFG_SetEXTISource (uint32_t
UM1749
LL SYSTEM Generic Driver
DocID026232 Rev 6
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Port, uint32_t Line)
Function description
Configure source input for the EXTI external interrupt.
Parameters
Port: This parameter can be one of the following values: (*)
value not defined in all devices
LL_SYSCFG_EXTI_PORTA
LL_SYSCFG_EXTI_PORTB
LL_SYSCFG_EXTI_PORTC
LL_SYSCFG_EXTI_PORTD (*)
LL_SYSCFG_EXTI_PORTE (*)
LL_SYSCFG_EXTI_PORTH (*)
Line: This parameter can be one of the following values:
LL_SYSCFG_EXTI_LINE0
LL_SYSCFG_EXTI_LINE1
LL_SYSCFG_EXTI_LINE2
LL_SYSCFG_EXTI_LINE3
LL_SYSCFG_EXTI_LINE4
LL_SYSCFG_EXTI_LINE5
LL_SYSCFG_EXTI_LINE6
LL_SYSCFG_EXTI_LINE7
LL_SYSCFG_EXTI_LINE8
LL_SYSCFG_EXTI_LINE9
LL_SYSCFG_EXTI_LINE10
LL_SYSCFG_EXTI_LINE11
LL_SYSCFG_EXTI_LINE12
LL_SYSCFG_EXTI_LINE13
LL_SYSCFG_EXTI_LINE14
LL_SYSCFG_EXTI_LINE15
Return values
None
Reference Manual to
LL API cross
reference:
SYSCFG_EXTICR1 EXTI0 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI1 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI2 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI3 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI4 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI5 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI6 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI7 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI8 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI9 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI10 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI11 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI12 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI13 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI14 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI15 LL_SYSCFG_SetEXTISource
LL_SYSCFG_GetEXTISource
Function name
__STATIC_INLINE uint32_t LL_SYSCFG_GetEXTISource
(uint32_t Line)
Function description
Get the configured defined for specific EXTI Line.
LL SYSTEM Generic Driver
UM1749
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Parameters
Line: This parameter can be one of the following values:
LL_SYSCFG_EXTI_LINE0
LL_SYSCFG_EXTI_LINE1
LL_SYSCFG_EXTI_LINE2
LL_SYSCFG_EXTI_LINE3
LL_SYSCFG_EXTI_LINE4
LL_SYSCFG_EXTI_LINE5
LL_SYSCFG_EXTI_LINE6
LL_SYSCFG_EXTI_LINE7
LL_SYSCFG_EXTI_LINE8
LL_SYSCFG_EXTI_LINE9
LL_SYSCFG_EXTI_LINE10
LL_SYSCFG_EXTI_LINE11
LL_SYSCFG_EXTI_LINE12
LL_SYSCFG_EXTI_LINE13
LL_SYSCFG_EXTI_LINE14
LL_SYSCFG_EXTI_LINE15
Return values
Returned: value can be one of the following values: (*)
value not defined in all devices
LL_SYSCFG_EXTI_PORTA
LL_SYSCFG_EXTI_PORTB
LL_SYSCFG_EXTI_PORTC
LL_SYSCFG_EXTI_PORTD (*)
LL_SYSCFG_EXTI_PORTE (*)
LL_SYSCFG_EXTI_PORTH (*)
Reference Manual to
LL API cross
reference:
SYSCFG_EXTICR1 EXTI0 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI1 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI2 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR1 EXTI3 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI4 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI5 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI6 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2 EXTI7 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI8 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI9 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI10 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3 EXTI11 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI12 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI13 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI14 LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4 EXTI15 LL_SYSCFG_SetEXTISource
LL_DBGMCU_GetDeviceID
Function name
__STATIC_INLINE uint32_t LL_DBGMCU_GetDeviceID (void )
Function description
Return the device identifier.
Return values
Values: between Min_Data=0x00 and Max_Data=0x7FF (ex:
L053 -> 0x417, L073 -> 0x447)
Reference Manual to
LL API cross
DBGMCU_IDCODE DEV_ID LL_DBGMCU_GetDeviceID
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LL_DBGMCU_GetRevisionID
Function name
__STATIC_INLINE uint32_t LL_DBGMCU_GetRevisionID (void
)
Function description
Return the device revision identifier.
Return values
Values: between Min_Data=0x00 and Max_Data=0xFFFF
Notes
This field indicates the revision of the device.
Reference Manual to
LL API cross
reference:
DBGMCU_IDCODE REV_ID LL_DBGMCU_GetRevisionID
LL_DBGMCU_EnableDBGSleepMode
Function name
__STATIC_INLINE void LL_DBGMCU_EnableDBGSleepMode
(void )
Function description
Enable the Debug Module during SLEEP mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_SLEEP
LL_DBGMCU_EnableDBGSleepMode
LL_DBGMCU_DisableDBGSleepMode
Function name
__STATIC_INLINE void LL_DBGMCU_DisableDBGSleepMode
(void )
Function description
Disable the Debug Module during SLEEP mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_SLEEP
LL_DBGMCU_DisableDBGSleepMode
LL_DBGMCU_EnableDBGStopMode
Function name
__STATIC_INLINE void LL_DBGMCU_EnableDBGStopMode
(void )
Function description
Enable the Debug Module during STOP mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_STOP
LL_DBGMCU_EnableDBGStopMode
LL_DBGMCU_DisableDBGStopMode
Function name
__STATIC_INLINE void LL_DBGMCU_DisableDBGStopMode
(void )
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Function description
Disable the Debug Module during STOP mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_STOP
LL_DBGMCU_DisableDBGStopMode
LL_DBGMCU_EnableDBGStandbyMode
Function name
__STATIC_INLINE void
LL_DBGMCU_EnableDBGStandbyMode (void )
Function description
Enable the Debug Module during STANDBY mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_STANDBY
LL_DBGMCU_EnableDBGStandbyMode
LL_DBGMCU_DisableDBGStandbyMode
Function name
__STATIC_INLINE void
LL_DBGMCU_DisableDBGStandbyMode (void )
Function description
Disable the Debug Module during STANDBY mode.
Return values
None
Reference Manual to
LL API cross
reference:
DBGMCU_CR DBG_STANDBY
LL_DBGMCU_DisableDBGStandbyMode
LL_DBGMCU_APB1_GRP1_FreezePeriph
Function name
__STATIC_INLINE void
LL_DBGMCU_APB1_GRP1_FreezePeriph (uint32_t Periphs)
Function description
Freeze APB1 peripherals (group1 peripherals)
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices
LL_DBGMCU_APB1_GRP1_TIM2_STOP
LL_DBGMCU_APB1_GRP1_TIM3_STOP (*)
LL_DBGMCU_APB1_GRP1_TIM6_STOP (*)
LL_DBGMCU_APB1_GRP1_TIM7_STOP (*)
LL_DBGMCU_APB1_GRP1_RTC_STOP
LL_DBGMCU_APB1_GRP1_WWDG_STOP
LL_DBGMCU_APB1_GRP1_IWDG_STOP
LL_DBGMCU_APB1_GRP1_I2C1_STOP
LL_DBGMCU_APB1_GRP1_I2C2_STOP (*)
LL_DBGMCU_APB1_GRP1_I2C3_STOP (*)
LL_DBGMCU_APB1_GRP1_LPTIM1_STOP
Return values
None
Reference Manual to
LL API cross
APB1FZ DBG_TIM2_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_TIM3_STOP
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LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_TIM6_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_TIM7_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_RTC_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_WWDG_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_IWDG_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_I2C1_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_I2C2_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_I2C3_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
APB1FZ DBG_LPTIMER_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
Function name
__STATIC_INLINE void
LL_DBGMCU_APB1_GRP1_UnFreezePeriph (uint32_t
Periphs)
Function description
Unfreeze APB1 peripherals (group1 peripherals)
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices
LL_DBGMCU_APB1_GRP1_TIM2_STOP
LL_DBGMCU_APB1_GRP1_TIM3_STOP (*)
LL_DBGMCU_APB1_GRP1_TIM6_STOP (*)
LL_DBGMCU_APB1_GRP1_TIM7_STOP (*)
LL_DBGMCU_APB1_GRP1_RTC_STOP
LL_DBGMCU_APB1_GRP1_WWDG_STOP
LL_DBGMCU_APB1_GRP1_IWDG_STOP
LL_DBGMCU_APB1_GRP1_I2C1_STOP
LL_DBGMCU_APB1_GRP1_I2C2_STOP (*)
LL_DBGMCU_APB1_GRP1_I2C3_STOP (*)
LL_DBGMCU_APB1_GRP1_LPTIM1_STOP
Return values
None
Reference Manual to
LL API cross
reference:
APB1FZ DBG_TIM2_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_TIM3_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_TIM6_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_TIM7_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_RTC_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_WWDG_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
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APB1FZ DBG_IWDG_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_I2C1_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_I2C2_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_I2C3_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB1FZ DBG_LPTIMER_STOP
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
LL_DBGMCU_APB2_GRP1_FreezePeriph
Function name
__STATIC_INLINE void
LL_DBGMCU_APB2_GRP1_FreezePeriph (uint32_t Periphs)
Function description
Freeze APB2 peripherals.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices
LL_DBGMCU_APB2_GRP1_TIM22_STOP (*)
LL_DBGMCU_APB2_GRP1_TIM21_STOP
Return values
None
Reference Manual to
LL API cross
reference:
APB2FZ DBG_TIM22_STOP
LL_DBGMCU_APB2_GRP1_FreezePeriph
APB2FZ DBG_TIM21_STOP
LL_DBGMCU_APB2_GRP1_FreezePeriph
LL_DBGMCU_APB2_GRP1_UnFreezePeriph
Function name
__STATIC_INLINE void
LL_DBGMCU_APB2_GRP1_UnFreezePeriph (uint32_t
Periphs)
Function description
Unfreeze APB2 peripherals.
Parameters
Periphs: This parameter can be a combination of the
following values: (*) value not defined in all devices
LL_DBGMCU_APB2_GRP1_TIM22_STOP (*)
LL_DBGMCU_APB2_GRP1_TIM21_STOP
Return values
None
Reference Manual to
LL API cross
reference:
APB2FZ DBG_TIM22_STOP
LL_DBGMCU_APB2_GRP1_UnFreezePeriph
APB2FZ DBG_TIM21_STOP
LL_DBGMCU_APB2_GRP1_UnFreezePeriph
LL_FLASH_SetLatency
Function name
__STATIC_INLINE void LL_FLASH_SetLatency (uint32_t
Latency)
Function description
Set FLASH Latency.
Parameters
Latency: This parameter can be one of the following values:
LL_FLASH_LATENCY_0
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LL_FLASH_LATENCY_1
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR LATENCY LL_FLASH_SetLatency
LL_FLASH_GetLatency
Function name
__STATIC_INLINE uint32_t LL_FLASH_GetLatency (void )
Function description
Get FLASH Latency.
Return values
Returned: value can be one of the following values:
LL_FLASH_LATENCY_0
LL_FLASH_LATENCY_1
Reference Manual to
LL API cross
reference:
FLASH_ACR LATENCY LL_FLASH_GetLatency
LL_FLASH_EnablePrefetch
Function name
__STATIC_INLINE void LL_FLASH_EnablePrefetch (void )
Function description
Enable Prefetch.
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR PRFTEN LL_FLASH_EnablePrefetch
LL_FLASH_DisablePrefetch
Function name
__STATIC_INLINE void LL_FLASH_DisablePrefetch (void )
Function description
Disable Prefetch.
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR PRFTEN LL_FLASH_DisablePrefetch
LL_FLASH_IsPrefetchEnabled
Function name
__STATIC_INLINE uint32_t LL_FLASH_IsPrefetchEnabled
(void )
Function description
Check if Prefetch buffer is enabled.
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
FLASH_ACR PRFTEN LL_FLASH_IsPrefetchEnabled
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LL_FLASH_EnableRunPowerDown
Function name
__STATIC_INLINE void LL_FLASH_EnableRunPowerDown
(void )
Function description
Enable Flash Power-down mode during run mode or Low-power
run mode.
Return values
None
Notes
Flash memory can be put in power-down mode only when the
code is executed from RAM
Flash must not be accessed when power down is enabled
Flash must not be put in power-down while a program or an
erase operation is on-going
Reference Manual to
LL API cross
reference:
FLASH_ACR RUN_PD LL_FLASH_EnableRunPowerDown
FLASH_PDKEYR PDKEY1
LL_FLASH_EnableRunPowerDown
FLASH_PDKEYR PDKEY2
LL_FLASH_EnableRunPowerDown
LL_FLASH_DisableRunPowerDown
Function name
__STATIC_INLINE void LL_FLASH_DisableRunPowerDown
(void )
Function description
Disable Flash Power-down mode during run mode or Low-power
run mode.
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR RUN_PD LL_FLASH_DisableRunPowerDown
FLASH_PDKEYR PDKEY1
LL_FLASH_DisableRunPowerDown
FLASH_PDKEYR PDKEY2
LL_FLASH_DisableRunPowerDown
LL_FLASH_EnableSleepPowerDown
Function name
__STATIC_INLINE void LL_FLASH_EnableSleepPowerDown
(void )
Function description
Enable Flash Power-down mode during Sleep or Low-power sleep
mode.
Return values
None
Notes
Flash must not be put in power-down while a program or an
erase operation is on-going
Reference Manual to
LL API cross
reference:
FLASH_ACR SLEEP_PD
LL_FLASH_EnableSleepPowerDown
LL_FLASH_DisableSleepPowerDown
Function name
__STATIC_INLINE void LL_FLASH_DisableSleepPowerDown
(void )
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Function description
Disable Flash Power-down mode during Sleep or Low-power sleep
mode.
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR SLEEP_PD
LL_FLASH_DisableSleepPowerDown
LL_FLASH_EnableBuffers
Function name
__STATIC_INLINE void LL_FLASH_EnableBuffers (void )
Function description
Enable buffers used as a cache during read access.
Return values
None
Reference Manual to
LL API cross
reference:
FLASH_ACR DISAB_BUF LL_FLASH_EnableBuffers
LL_FLASH_DisableBuffers
Function name
__STATIC_INLINE void LL_FLASH_DisableBuffers (void )
Function description
Disable buffers used as a cache during read access.
Return values
None
Notes
When disabled, every read will access the NVM even for an
address already read (for example, the previous address).
Reference Manual to
LL API cross
reference:
FLASH_ACR DISAB_BUF LL_FLASH_DisableBuffers
LL_FLASH_EnablePreRead
Function name
__STATIC_INLINE void LL_FLASH_EnablePreRead (void )
Function description
Enable pre-read.
Return values
None
Notes
When enabled, the memory interface stores the last address
read as data and tries to read the next one when no other
read or write or prefetch operation is ongoing. It is
automatically disabled every time the buffers are disabled.
Reference Manual to
LL API cross
reference:
FLASH_ACR PRE_READ LL_FLASH_EnablePreRead
LL_FLASH_DisablePreRead
Function name
__STATIC_INLINE void LL_FLASH_DisablePreRead (void )
Function description
Disable pre-read.
Return values
None
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Reference Manual to
LL API cross
reference:
FLASH_ACR PRE_READ LL_FLASH_DisablePreRead
73.2 SYSTEM Firmware driver defines
73.2.1 SYSTEM
DBGMCU APB1 GRP1 STOP IP
LL_DBGMCU_APB1_GRP1_TIM2_STOP
TIM2 counter stopped when core is halted
LL_DBGMCU_APB1_GRP1_TIM3_STOP
TIM3 counter stopped when core is halted
LL_DBGMCU_APB1_GRP1_TIM6_STOP
TIM6 counter stopped when core is halted
LL_DBGMCU_APB1_GRP1_TIM7_STOP
TIM7 counter stopped when core is halted
LL_DBGMCU_APB1_GRP1_RTC_STOP
RTC Calendar frozen when core is halted
LL_DBGMCU_APB1_GRP1_WWDG_STOP
Debug Window Watchdog stopped when
Core is halted
LL_DBGMCU_APB1_GRP1_IWDG_STOP
Debug Independent Watchdog stopped
when Core is halted
LL_DBGMCU_APB1_GRP1_I2C1_STOP
I2C1 SMBUS timeout mode stopped when
Core is halted
LL_DBGMCU_APB1_GRP1_I2C2_STOP
I2C2 SMBUS timeout mode stopped when
Core is halted
LL_DBGMCU_APB1_GRP1_I2C3_STOP
I2C3 SMBUS timeout mode stopped when
Core is halted
LL_DBGMCU_APB1_GRP1_LPTIM1_STOP
LPTIM1 counter stopped when core is
halted
DBGMCU APB2 GRP1 STOP IP
LL_DBGMCU_APB2_GRP1_TIM22_STOP
TIM22 counter stopped when core is halted
LL_DBGMCU_APB2_GRP1_TIM21_STOP
TIM21 counter stopped when core is halted
SYSCFG Bank Mode
LL_SYSCFG_BANKMODE_BANK1
Flash Bank1 mapped at 0x08000000 (and aliased at
0x00000000), Flash Bank2 mapped at 0x08018000
(and aliased at 0x00018000), Data EEPROM Bank1
mapped at 0x08080000 (and aliased at
0x00080000), Data EEPROM Bank2 mapped at
0x08080C00 (and aliased at 0x00080C00)
LL_SYSCFG_BANKMODE_BANK2
Flash Bank2 mapped at 0x08000000 (and aliased at
0x00000000), Flash Bank1 mapped at 0x08018000
(and aliased at 0x00018000), Data EEPROM Bank2
mapped at 0x08080000 (and aliased at
0x00080000), Data EEPROM Bank1 mapped at
0x08080C00 (and aliased at 0x00080C00)
SYSCFG Boot Mode
LL_SYSCFG_BOOTMODE_FLASH
Main Flash memory boot mode
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LL_SYSCFG_BOOTMODE_SYSTEMFLASH
System Flash memory boot mode
LL_SYSCFG_BOOTMODE_SRAM
SRAM boot mode
SYSCFG VLCD Rail Connection
LL_SYSCFG_CAPA_VLCD2_PB2
Connect PB2 pin to LCD_VLCD2 rails supply voltage
LL_SYSCFG_CAPA_VLCD1_PB12
Connect PB12 pin to LCD_VLCD1 rails supply
voltage
LL_SYSCFG_CAPA_VLCD3_PB0
Connect PB0 pin to LCD_VLCD3 rails supply voltage
LL_SYSCFG_CAPA_VLCD1_PE11
Connect PE11 pin to LCD_VLCD1 rails supply
voltage
LL_SYSCFG_CAPA_VLCD3_PE12
Connect PE12 pin to LCD_VLCD3 rails supply
voltage
SYSCFG EXTI Line
LL_SYSCFG_EXTI_LINE0
EXTI_POSITION_0 | EXTICR[0]
LL_SYSCFG_EXTI_LINE1
EXTI_POSITION_4 | EXTICR[0]
LL_SYSCFG_EXTI_LINE2
EXTI_POSITION_8 | EXTICR[0]
LL_SYSCFG_EXTI_LINE3
EXTI_POSITION_12 | EXTICR[0]
LL_SYSCFG_EXTI_LINE4
EXTI_POSITION_0 | EXTICR[1]
LL_SYSCFG_EXTI_LINE5
EXTI_POSITION_4 | EXTICR[1]
LL_SYSCFG_EXTI_LINE6
EXTI_POSITION_8 | EXTICR[1]
LL_SYSCFG_EXTI_LINE7
EXTI_POSITION_12 | EXTICR[1]
LL_SYSCFG_EXTI_LINE8
EXTI_POSITION_0 | EXTICR[2]
LL_SYSCFG_EXTI_LINE9
EXTI_POSITION_4 | EXTICR[2]
LL_SYSCFG_EXTI_LINE10
EXTI_POSITION_8 | EXTICR[2]
LL_SYSCFG_EXTI_LINE11
EXTI_POSITION_12 | EXTICR[2]
LL_SYSCFG_EXTI_LINE12
EXTI_POSITION_0 | EXTICR[3]
LL_SYSCFG_EXTI_LINE13
EXTI_POSITION_4 | EXTICR[3]
LL_SYSCFG_EXTI_LINE14
EXTI_POSITION_8 | EXTICR[3]
LL_SYSCFG_EXTI_LINE15
EXTI_POSITION_12 | EXTICR[3]
SYSCFG EXTI Port
LL_SYSCFG_EXTI_PORTA
EXTI PORT A
LL_SYSCFG_EXTI_PORTB
EXTI PORT B
LL_SYSCFG_EXTI_PORTC
EXTI PORT C
LL_SYSCFG_EXTI_PORTD
EXTI PORT D
LL_SYSCFG_EXTI_PORTE
EXTI PORT E
LL_SYSCFG_EXTI_PORTH
EXTI PORT H
SYSCFG I2C FASTMODEPLUS
LL_SYSCFG_I2C_FASTMODEPLUS_PB6
Enable Fast Mode Plus on PB6
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LL_SYSCFG_I2C_FASTMODEPLUS_PB7
Enable Fast Mode Plus on PB7
LL_SYSCFG_I2C_FASTMODEPLUS_PB8
Enable Fast Mode Plus on PB8
LL_SYSCFG_I2C_FASTMODEPLUS_PB9
Enable Fast Mode Plus on PB9
LL_SYSCFG_I2C_FASTMODEPLUS_I2C1
Enable Fast Mode Plus on I2C1 pins
LL_SYSCFG_I2C_FASTMODEPLUS_I2C2
Enable Fast Mode Plus on I2C2 pins
LL_SYSCFG_I2C_FASTMODEPLUS_I2C3
Enable Fast Mode Plus on I2C3 pins
FLASH LATENCY
LL_FLASH_LATENCY_0
FLASH Zero Latency cycle
LL_FLASH_LATENCY_1
FLASH One Latency cycle
SYSCFG Memory Remap
LL_SYSCFG_REMAP_FLASH
Main Flash memory mapped at 0x00000000
LL_SYSCFG_REMAP_SYSTEMFLASH
System Flash memory mapped at 0x00000000
LL_SYSCFG_REMAP_SRAM
SRAM mapped at 0x00000000
SYSCFG VREFINT Control
LL_SYSCFG_VREFINT_CONNECT_NONE
No pad connected to VREFINT_ADC
LL_SYSCFG_VREFINT_CONNECT_IO1
PB0 connected to VREFINT_ADC
LL_SYSCFG_VREFINT_CONNECT_IO2
PB1 connected to VREFINT_ADC
LL_SYSCFG_VREFINT_CONNECT_IO1_IO2
PB0 and PB1 connected to
VREFINT_ADC
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74 LL TIM Generic Driver
74.1 TIM Firmware driver registers structures
74.1.1 LL_TIM_InitTypeDef
Data Fields
uint16_t Prescaler
uint32_t CounterMode
uint32_t Autoreload
uint32_t ClockDivision
Field Documentation
uint16_t LL_TIM_InitTypeDef::Prescaler
Specifies the prescaler value used to divide the TIM clock. This parameter can be a
number between Min_Data=0x0000 and Max_Data=0xFFFF.This feature can be
modified afterwards using unitary function LL_TIM_SetPrescaler().
uint32_t LL_TIM_InitTypeDef::CounterMode
Specifies the counter mode. This parameter can be a value of
TIM_LL_EC_COUNTERMODE.This feature can be modified afterwards using unitary
function LL_TIM_SetCounterMode().
uint32_t LL_TIM_InitTypeDef::Autoreload
Specifies the auto reload value to be loaded into the active Auto-Reload Register at
the next update event. This parameter must be a number between Min_Data=0x0000
and Max_Data=0xFFFF. Some timer instances may support 32 bits counters. In that
case this parameter must be a number between 0x0000 and 0xFFFFFFFF.This
feature can be modified afterwards using unitary function LL_TIM_SetAutoReload().
uint32_t LL_TIM_InitTypeDef::ClockDivision
Specifies the clock division. This parameter can be a value of
TIM_LL_EC_CLOCKDIVISION.This feature can be modified afterwards using unitary
function LL_TIM_SetClockDivision().
74.1.2 LL_TIM_OC_InitTypeDef
Data Fields
uint32_t OCMode
uint32_t OCState
uint32_t CompareValue
uint32_t OCPolarity
Field Documentation
uint32_t LL_TIM_OC_InitTypeDef::OCMode
Specifies the output mode. This parameter can be a value of
TIM_LL_EC_OCMODE.This feature can be modified afterwards using unitary function
LL_TIM_OC_SetMode().
uint32_t LL_TIM_OC_InitTypeDef::OCState
Specifies the TIM Output Compare state. This parameter can be a value of
TIM_LL_EC_OCSTATE.This feature can be modified afterwards using unitary
functions LL_TIM_CC_EnableChannel() or LL_TIM_CC_DisableChannel().
uint32_t LL_TIM_OC_InitTypeDef::CompareValue
Specifies the Compare value to be loaded into the Capture Compare Register. This
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parameter can be a number between Min_Data=0x0000 and Max_Data=0xFFFF.This
feature can be modified afterwards using unitary function
LL_TIM_OC_SetCompareCHx (x=1..6).
uint32_t LL_TIM_OC_InitTypeDef::OCPolarity
Specifies the output polarity. This parameter can be a value of
TIM_LL_EC_OCPOLARITY.This feature can be modified afterwards using unitary
function LL_TIM_OC_SetPolarity().
74.1.3 LL_TIM_IC_InitTypeDef
Data Fields
uint32_t ICPolarity
uint32_t ICActiveInput
uint32_t ICPrescaler
uint32_t ICFilter
Field Documentation
uint32_t LL_TIM_IC_InitTypeDef::ICPolarity
Specifies the active edge of the input signal. This parameter can be a value of
TIM_LL_EC_IC_POLARITY.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetPolarity().
uint32_t LL_TIM_IC_InitTypeDef::ICActiveInput
Specifies the input. This parameter can be a value of
TIM_LL_EC_ACTIVEINPUT.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetActiveInput().
uint32_t LL_TIM_IC_InitTypeDef::ICPrescaler
Specifies the Input Capture Prescaler. This parameter can be a value of
TIM_LL_EC_ICPSC.This feature can be modified afterwards using unitary function
LL_TIM_IC_SetPrescaler().
uint32_t LL_TIM_IC_InitTypeDef::ICFilter
Specifies the input capture filter. This parameter can be a value of
TIM_LL_EC_IC_FILTER.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetFilter().
74.1.4 LL_TIM_ENCODER_InitTypeDef
Data Fields
uint32_t EncoderMode
uint32_t IC1Polarity
uint32_t IC1ActiveInput
uint32_t IC1Prescaler
uint32_t IC1Filter
uint32_t IC2Polarity
uint32_t IC2ActiveInput
uint32_t IC2Prescaler
uint32_t IC2Filter
Field Documentation
uint32_t LL_TIM_ENCODER_InitTypeDef::EncoderMode
Specifies the encoder resolution (x2 or x4). This parameter can be a value of
TIM_LL_EC_ENCODERMODE.This feature can be modified afterwards using unitary
function LL_TIM_SetEncoderMode().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC1Polarity
Specifies the active edge of TI1 input. This parameter can be a value of
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TIM_LL_EC_IC_POLARITY.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetPolarity().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC1ActiveInput
Specifies the TI1 input source This parameter can be a value of
TIM_LL_EC_ACTIVEINPUT.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetActiveInput().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC1Prescaler
Specifies the TI1 input prescaler value. This parameter can be a value of
TIM_LL_EC_ICPSC.This feature can be modified afterwards using unitary function
LL_TIM_IC_SetPrescaler().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC1Filter
Specifies the TI1 input filter. This parameter can be a value of
TIM_LL_EC_IC_FILTER.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetFilter().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC2Polarity
Specifies the active edge of TI2 input. This parameter can be a value of
TIM_LL_EC_IC_POLARITY.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetPolarity().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC2ActiveInput
Specifies the TI2 input source This parameter can be a value of
TIM_LL_EC_ACTIVEINPUT.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetActiveInput().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC2Prescaler
Specifies the TI2 input prescaler value. This parameter can be a value of
TIM_LL_EC_ICPSC.This feature can be modified afterwards using unitary function
LL_TIM_IC_SetPrescaler().
uint32_t LL_TIM_ENCODER_InitTypeDef::IC2Filter
Specifies the TI2 input filter. This parameter can be a value of
TIM_LL_EC_IC_FILTER.This feature can be modified afterwards using unitary
function LL_TIM_IC_SetFilter().
74.2 TIM Firmware driver API description
74.2.1 Detailed description of functions
LL_TIM_EnableCounter
Function name
__STATIC_INLINE void LL_TIM_EnableCounter (TIM_TypeDef
* TIMx)
Function description
Enable timer counter.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CEN LL_TIM_EnableCounter
LL_TIM_DisableCounter
Function name
__STATIC_INLINE void LL_TIM_DisableCounter (TIM_TypeDef
* TIMx)
Function description
Disable timer counter.
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Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CEN LL_TIM_DisableCounter
LL_TIM_IsEnabledCounter
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledCounter
(TIM_TypeDef * TIMx)
Function description
Indicates whether the timer counter is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 CEN LL_TIM_IsEnabledCounter
LL_TIM_EnableUpdateEvent
Function name
__STATIC_INLINE void LL_TIM_EnableUpdateEvent
(TIM_TypeDef * TIMx)
Function description
Enable update event generation.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 UDIS LL_TIM_EnableUpdateEvent
LL_TIM_DisableUpdateEvent
Function name
__STATIC_INLINE void LL_TIM_DisableUpdateEvent
(TIM_TypeDef * TIMx)
Function description
Disable update event generation.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 UDIS LL_TIM_DisableUpdateEvent
LL_TIM_IsEnabledUpdateEvent
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledUpdateEvent
(TIM_TypeDef * TIMx)
Function description
Indicates whether update event generation is enabled.
Parameters
TIMx: Timer instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 UDIS LL_TIM_IsEnabledUpdateEvent
LL_TIM_SetUpdateSource
Function name
__STATIC_INLINE void LL_TIM_SetUpdateSource
(TIM_TypeDef * TIMx, uint32_t UpdateSource)
Function description
Set update event source.
Parameters
TIMx: Timer instance
UpdateSource: This parameter can be one of the following
values:
LL_TIM_UPDATESOURCE_REGULAR
LL_TIM_UPDATESOURCE_COUNTER
Return values
None
Notes
Update event source set to
LL_TIM_UPDATESOURCE_REGULAR: any of the following
events generate an update interrupt or DMA request if
enabled: Counter overflow/underflowSetting the UG bitUpdate
generation through the slave mode controller
Update event source set to
LL_TIM_UPDATESOURCE_COUNTER: only counter
overflow/underflow generates an update interrupt or DMA
request if enabled.
Reference Manual to
LL API cross
reference:
CR1 URS LL_TIM_SetUpdateSource
LL_TIM_GetUpdateSource
Function name
__STATIC_INLINE uint32_t LL_TIM_GetUpdateSource
(TIM_TypeDef * TIMx)
Function description
Get actual event update source.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_UPDATESOURCE_REGULAR
LL_TIM_UPDATESOURCE_COUNTER
Reference Manual to
LL API cross
reference:
CR1 URS LL_TIM_GetUpdateSource
LL_TIM_SetOnePulseMode
Function name
__STATIC_INLINE void LL_TIM_SetOnePulseMode
(TIM_TypeDef * TIMx, uint32_t OnePulseMode)
Function description
Set one pulse mode (one shot v.s.
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Parameters
TIMx: Timer instance
OnePulseMode: This parameter can be one of the following
values:
LL_TIM_ONEPULSEMODE_SINGLE
LL_TIM_ONEPULSEMODE_REPETITIVE
Return values
None
Reference Manual to
LL API cross
reference:
CR1 OPM LL_TIM_SetOnePulseMode
LL_TIM_GetOnePulseMode
Function name
__STATIC_INLINE uint32_t LL_TIM_GetOnePulseMode
(TIM_TypeDef * TIMx)
Function description
Get actual one pulse mode.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_ONEPULSEMODE_SINGLE
LL_TIM_ONEPULSEMODE_REPETITIVE
Reference Manual to
LL API cross
reference:
CR1 OPM LL_TIM_GetOnePulseMode
LL_TIM_SetCounterMode
Function name
__STATIC_INLINE void LL_TIM_SetCounterMode
(TIM_TypeDef * TIMx, uint32_t CounterMode)
Function description
Set the timer counter counting mode.
Parameters
TIMx: Timer instance
CounterMode: This parameter can be one of the following
values:
LL_TIM_COUNTERMODE_UP
LL_TIM_COUNTERMODE_DOWN
LL_TIM_COUNTERMODE_CENTER_UP
LL_TIM_COUNTERMODE_CENTER_DOWN
LL_TIM_COUNTERMODE_CENTER_UP_DOWN
Return values
None
Notes
Macro
IS_TIM_COUNTER_MODE_SELECT_INSTANCE(TIMx) can
be used to check whether or not the counter mode selection
feature is supported by a timer instance.
Reference Manual to
LL API cross
reference:
CR1 DIR LL_TIM_SetCounterMode
CR1 CMS LL_TIM_SetCounterMode
LL_TIM_GetCounterMode
Function name
__STATIC_INLINE uint32_t LL_TIM_GetCounterMode
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(TIM_TypeDef * TIMx)
Function description
Get actual counter mode.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_COUNTERMODE_UP
LL_TIM_COUNTERMODE_DOWN
LL_TIM_COUNTERMODE_CENTER_UP
LL_TIM_COUNTERMODE_CENTER_DOWN
LL_TIM_COUNTERMODE_CENTER_UP_DOWN
Notes
Macro
IS_TIM_COUNTER_MODE_SELECT_INSTANCE(TIMx) can
be used to check whether or not the counter mode selection
feature is supported by a timer instance.
Reference Manual to
LL API cross
reference:
CR1 DIR LL_TIM_GetCounterMode
CR1 CMS LL_TIM_GetCounterMode
LL_TIM_EnableARRPreload
Function name
__STATIC_INLINE void LL_TIM_EnableARRPreload
(TIM_TypeDef * TIMx)
Function description
Enable auto-reload (ARR) preload.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 ARPE LL_TIM_EnableARRPreload
LL_TIM_DisableARRPreload
Function name
__STATIC_INLINE void LL_TIM_DisableARRPreload
(TIM_TypeDef * TIMx)
Function description
Disable auto-reload (ARR) preload.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 ARPE LL_TIM_DisableARRPreload
LL_TIM_IsEnabledARRPreload
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledARRPreload
(TIM_TypeDef * TIMx)
Function description
Indicates whether auto-reload (ARR) preload is enabled.
Parameters
TIMx: Timer instance
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Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 ARPE LL_TIM_IsEnabledARRPreload
LL_TIM_SetClockDivision
Function name
__STATIC_INLINE void LL_TIM_SetClockDivision
(TIM_TypeDef * TIMx, uint32_t ClockDivision)
Function description
Set the division ratio between the timer clock and the sampling
clock used by the dead-time generators (when supported) and the
digital filters.
Parameters
TIMx: Timer instance
ClockDivision: This parameter can be one of the following
values:
LL_TIM_CLOCKDIVISION_DIV1
LL_TIM_CLOCKDIVISION_DIV2
LL_TIM_CLOCKDIVISION_DIV4
Return values
None
Notes
Macro IS_TIM_CLOCK_DIVISION_INSTANCE(TIMx) can be
used to check whether or not the clock division feature is
supported by the timer instance.
Reference Manual to
LL API cross
reference:
CR1 CKD LL_TIM_SetClockDivision
LL_TIM_GetClockDivision
Function name
__STATIC_INLINE uint32_t LL_TIM_GetClockDivision
(TIM_TypeDef * TIMx)
Function description
Get the actual division ratio between the timer clock and the
sampling clock used by the dead-time generators (when
supported) and the digital filters.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_CLOCKDIVISION_DIV1
LL_TIM_CLOCKDIVISION_DIV2
LL_TIM_CLOCKDIVISION_DIV4
Notes
Macro IS_TIM_CLOCK_DIVISION_INSTANCE(TIMx) can be
used to check whether or not the clock division feature is
supported by the timer instance.
Reference Manual to
LL API cross
reference:
CR1 CKD LL_TIM_GetClockDivision
LL_TIM_SetCounter
Function name
__STATIC_INLINE void LL_TIM_SetCounter (TIM_TypeDef *
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TIMx, uint32_t Counter)
Function description
Set the counter value.
Parameters
TIMx: Timer instance
Counter: Counter value (between Min_Data=0 and
Max_Data=0xFFFF)
Return values
None
Reference Manual to
LL API cross
reference:
CNT CNT LL_TIM_SetCounter
LL_TIM_GetCounter
Function name
__STATIC_INLINE uint32_t LL_TIM_GetCounter (TIM_TypeDef
* TIMx)
Function description
Get the counter value.
Parameters
TIMx: Timer instance
Return values
Counter: value (between Min_Data=0 and
Max_Data=0xFFFF)
Reference Manual to
LL API cross
reference:
CNT CNT LL_TIM_GetCounter
LL_TIM_GetDirection
Function name
__STATIC_INLINE uint32_t LL_TIM_GetDirection
(TIM_TypeDef * TIMx)
Function description
Get the current direction of the counter.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_COUNTERDIRECTION_UP
LL_TIM_COUNTERDIRECTION_DOWN
Reference Manual to
LL API cross
reference:
CR1 DIR LL_TIM_GetDirection
LL_TIM_SetPrescaler
Function name
__STATIC_INLINE void LL_TIM_SetPrescaler (TIM_TypeDef *
TIMx, uint32_t Prescaler)
Function description
Set the prescaler value.
Parameters
TIMx: Timer instance
Prescaler: between Min_Data=0 and Max_Data=65535
Return values
None
Notes
The counter clock frequency CK_CNT is equal to fCK_PSC /
(PSC[15:0] + 1).
The prescaler can be changed on the fly as this control
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register is buffered. The new prescaler ratio is taken into
account at the next update event.
Helper macro __LL_TIM_CALC_PSC can be used to
calculate the Prescaler parameter
Reference Manual to
LL API cross
reference:
PSC PSC LL_TIM_SetPrescaler
LL_TIM_GetPrescaler
Function name
__STATIC_INLINE uint32_t LL_TIM_GetPrescaler
(TIM_TypeDef * TIMx)
Function description
Get the prescaler value.
Parameters
TIMx: Timer instance
Return values
Prescaler: value between Min_Data=0 and
Max_Data=65535
Reference Manual to
LL API cross
reference:
PSC PSC LL_TIM_GetPrescaler
LL_TIM_SetAutoReload
Function name
__STATIC_INLINE void LL_TIM_SetAutoReload (TIM_TypeDef
* TIMx, uint32_t AutoReload)
Function description
Set the auto-reload value.
Parameters
TIMx: Timer instance
AutoReload: between Min_Data=0 and Max_Data=65535
Return values
None
Notes
The counter is blocked while the auto-reload value is null.
Helper macro __LL_TIM_CALC_ARR can be used to
calculate the AutoReload parameter
Reference Manual to
LL API cross
reference:
ARR ARR LL_TIM_SetAutoReload
LL_TIM_GetAutoReload
Function name
__STATIC_INLINE uint32_t LL_TIM_GetAutoReload
(TIM_TypeDef * TIMx)
Function description
Get the auto-reload value.
Parameters
TIMx: Timer instance
Return values
Auto-reload: value
Reference Manual to
LL API cross
reference:
ARR ARR LL_TIM_GetAutoReload
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LL_TIM_CC_SetDMAReqTrigger
Function name
__STATIC_INLINE void LL_TIM_CC_SetDMAReqTrigger
(TIM_TypeDef * TIMx, uint32_t DMAReqTrigger)
Function description
Set the trigger of the capture/compare DMA request.
Parameters
TIMx: Timer instance
DMAReqTrigger: This parameter can be one of the following
values:
LL_TIM_CCDMAREQUEST_CC
LL_TIM_CCDMAREQUEST_UPDATE
Return values
None
Reference Manual to
LL API cross
reference:
CR2 CCDS LL_TIM_CC_SetDMAReqTrigger
LL_TIM_CC_GetDMAReqTrigger
Function name
__STATIC_INLINE uint32_t LL_TIM_CC_GetDMAReqTrigger
(TIM_TypeDef * TIMx)
Function description
Get actual trigger of the capture/compare DMA request.
Parameters
TIMx: Timer instance
Return values
Returned: value can be one of the following values:
LL_TIM_CCDMAREQUEST_CC
LL_TIM_CCDMAREQUEST_UPDATE
Reference Manual to
LL API cross
reference:
CR2 CCDS LL_TIM_CC_GetDMAReqTrigger
LL_TIM_CC_EnableChannel
Function name
__STATIC_INLINE void LL_TIM_CC_EnableChannel
(TIM_TypeDef * TIMx, uint32_t Channels)
Function description
Enable capture/compare channels.
Parameters
TIMx: Timer instance
Channels: This parameter can be a combination of the
following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Reference Manual to
LL API cross
reference:
CCER CC1E LL_TIM_CC_EnableChannel
CCER CC2E LL_TIM_CC_EnableChannel
CCER CC3E LL_TIM_CC_EnableChannel
CCER CC4E LL_TIM_CC_EnableChannel
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LL_TIM_CC_DisableChannel
Function name
__STATIC_INLINE void LL_TIM_CC_DisableChannel
(TIM_TypeDef * TIMx, uint32_t Channels)
Function description
Disable capture/compare channels.
Parameters
TIMx: Timer instance
Channels: This parameter can be a combination of the
following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Reference Manual to
LL API cross
reference:
CCER CC1E LL_TIM_CC_DisableChannel
CCER CC2E LL_TIM_CC_DisableChannel
CCER CC3E LL_TIM_CC_DisableChannel
CCER CC4E LL_TIM_CC_DisableChannel
LL_TIM_CC_IsEnabledChannel
Function name
__STATIC_INLINE uint32_t LL_TIM_CC_IsEnabledChannel
(TIM_TypeDef * TIMx, uint32_t Channels)
Function description
Indicate whether channel(s) is(are) enabled.
Parameters
TIMx: Timer instance
Channels: This parameter can be a combination of the
following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCER CC1E LL_TIM_CC_IsEnabledChannel
CCER CC2E LL_TIM_CC_IsEnabledChannel
CCER CC3E LL_TIM_CC_IsEnabledChannel
CCER CC4E LL_TIM_CC_IsEnabledChannel
LL_TIM_OC_ConfigOutput
Function name
__STATIC_INLINE void LL_TIM_OC_ConfigOutput
(TIM_TypeDef * TIMx, uint32_t Channel, uint32_t
Configuration)
Function description
Configure an output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Configuration: This parameter must be a combination of all
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the following values:
LL_TIM_OCPOLARITY_HIGH or
LL_TIM_OCPOLARITY_LOW
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 CC1S LL_TIM_OC_ConfigOutput
CCMR1 CC2S LL_TIM_OC_ConfigOutput
CCMR2 CC3S LL_TIM_OC_ConfigOutput
CCMR2 CC4S LL_TIM_OC_ConfigOutput
CCER CC1P LL_TIM_OC_ConfigOutput
CCER CC2P LL_TIM_OC_ConfigOutput
CCER CC3P LL_TIM_OC_ConfigOutput
CCER CC4P LL_TIM_OC_ConfigOutput
LL_TIM_OC_SetMode
Function name
__STATIC_INLINE void LL_TIM_OC_SetMode (TIM_TypeDef *
TIMx, uint32_t Channel, uint32_t Mode)
Function description
Define the behavior of the output reference signal OCxREF from
which OCx and OCxN (when relevant) are derived.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Mode: This parameter can be one of the following values:
LL_TIM_OCMODE_FROZEN
LL_TIM_OCMODE_ACTIVE
LL_TIM_OCMODE_INACTIVE
LL_TIM_OCMODE_TOGGLE
LL_TIM_OCMODE_FORCED_INACTIVE
LL_TIM_OCMODE_FORCED_ACTIVE
LL_TIM_OCMODE_PWM1
LL_TIM_OCMODE_PWM2
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 OC1M LL_TIM_OC_SetMode
CCMR1 OC2M LL_TIM_OC_SetMode
CCMR2 OC3M LL_TIM_OC_SetMode
CCMR2 OC4M LL_TIM_OC_SetMode
LL_TIM_OC_GetMode
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetMode
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Get the output compare mode of an output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
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LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
Returned: value can be one of the following values:
LL_TIM_OCMODE_FROZEN
LL_TIM_OCMODE_ACTIVE
LL_TIM_OCMODE_INACTIVE
LL_TIM_OCMODE_TOGGLE
LL_TIM_OCMODE_FORCED_INACTIVE
LL_TIM_OCMODE_FORCED_ACTIVE
LL_TIM_OCMODE_PWM1
LL_TIM_OCMODE_PWM2
Reference Manual to
LL API cross
reference:
CCMR1 OC1M LL_TIM_OC_GetMode
CCMR1 OC2M LL_TIM_OC_GetMode
CCMR2 OC3M LL_TIM_OC_GetMode
CCMR2 OC4M LL_TIM_OC_GetMode
LL_TIM_OC_SetPolarity
Function name
__STATIC_INLINE void LL_TIM_OC_SetPolarity (TIM_TypeDef
* TIMx, uint32_t Channel, uint32_t Polarity)
Function description
Set the polarity of an output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Polarity: This parameter can be one of the following values:
LL_TIM_OCPOLARITY_HIGH
LL_TIM_OCPOLARITY_LOW
Return values
None
Reference Manual to
LL API cross
reference:
CCER CC1P LL_TIM_OC_SetPolarity
CCER CC2P LL_TIM_OC_SetPolarity
CCER CC3P LL_TIM_OC_SetPolarity
CCER CC4P LL_TIM_OC_SetPolarity
LL_TIM_OC_GetPolarity
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetPolarity
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Get the polarity of an output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
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Return values
Returned: value can be one of the following values:
LL_TIM_OCPOLARITY_HIGH
LL_TIM_OCPOLARITY_LOW
Reference Manual to
LL API cross
reference:
CCER CC1P LL_TIM_OC_GetPolarity
CCER CC2P LL_TIM_OC_GetPolarity
CCER CC3P LL_TIM_OC_GetPolarity
CCER CC4P LL_TIM_OC_GetPolarity
LL_TIM_OC_EnableFast
Function name
__STATIC_INLINE void LL_TIM_OC_EnableFast (TIM_TypeDef
* TIMx, uint32_t Channel)
Function description
Enable fast mode for the output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Notes
Acts only if the channel is configured in PWM1 or PWM2
mode.
Reference Manual to
LL API cross
reference:
CCMR1 OC1FE LL_TIM_OC_EnableFast
CCMR1 OC2FE LL_TIM_OC_EnableFast
CCMR2 OC3FE LL_TIM_OC_EnableFast
CCMR2 OC4FE LL_TIM_OC_EnableFast
LL_TIM_OC_DisableFast
Function name
__STATIC_INLINE void LL_TIM_OC_DisableFast
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Disable fast mode for the output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 OC1FE LL_TIM_OC_DisableFast
CCMR1 OC2FE LL_TIM_OC_DisableFast
CCMR2 OC3FE LL_TIM_OC_DisableFast
CCMR2 OC4FE LL_TIM_OC_DisableFast
LL_TIM_OC_IsEnabledFast
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_IsEnabledFast
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(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Indicates whether fast mode is enabled for the output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCMR1 OC1FE LL_TIM_OC_IsEnabledFast
CCMR1 OC2FE LL_TIM_OC_IsEnabledFast
CCMR2 OC3FE LL_TIM_OC_IsEnabledFast
CCMR2 OC4FE LL_TIM_OC_IsEnabledFast
LL_TIM_OC_EnablePreload
Function name
__STATIC_INLINE void LL_TIM_OC_EnablePreload
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Enable compare register (TIMx_CCRx) preload for the output
channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 OC1PE LL_TIM_OC_EnablePreload
CCMR1 OC2PE LL_TIM_OC_EnablePreload
CCMR2 OC3PE LL_TIM_OC_EnablePreload
CCMR2 OC4PE LL_TIM_OC_EnablePreload
LL_TIM_OC_DisablePreload
Function name
__STATIC_INLINE void LL_TIM_OC_DisablePreload
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Disable compare register (TIMx_CCRx) preload for the output
channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Reference Manual to
CCMR1 OC1PE LL_TIM_OC_DisablePreload
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LL API cross
reference:
CCMR1 OC2PE LL_TIM_OC_DisablePreload
CCMR2 OC3PE LL_TIM_OC_DisablePreload
CCMR2 OC4PE LL_TIM_OC_DisablePreload
LL_TIM_OC_IsEnabledPreload
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_IsEnabledPreload
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Indicates whether compare register (TIMx_CCRx) preload is
enabled for the output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CCMR1 OC1PE LL_TIM_OC_IsEnabledPreload
CCMR1 OC2PE LL_TIM_OC_IsEnabledPreload
CCMR2 OC3PE LL_TIM_OC_IsEnabledPreload
CCMR2 OC4PE LL_TIM_OC_IsEnabledPreload
LL_TIM_OC_EnableClear
Function name
__STATIC_INLINE void LL_TIM_OC_EnableClear
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Enable clearing the output channel on an external event.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Notes
This function can only be used in Output compare and PWM
modes. It does not work in Forced mode.
Macro IS_TIM_OCXREF_CLEAR_INSTANCE(TIMx) can be
used to check whether or not a timer instance can clear the
OCxREF signal on an external event.
Reference Manual to
LL API cross
reference:
CCMR1 OC1CE LL_TIM_OC_EnableClear
CCMR1 OC2CE LL_TIM_OC_EnableClear
CCMR2 OC3CE LL_TIM_OC_EnableClear
CCMR2 OC4CE LL_TIM_OC_EnableClear
LL_TIM_OC_DisableClear
Function name
__STATIC_INLINE void LL_TIM_OC_DisableClear
LL TIM Generic Driver
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(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Disable clearing the output channel on an external event.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
None
Notes
Macro IS_TIM_OCXREF_CLEAR_INSTANCE(TIMx) can be
used to check whether or not a timer instance can clear the
OCxREF signal on an external event.
Reference Manual to
LL API cross
reference:
CCMR1 OC1CE LL_TIM_OC_DisableClear
CCMR1 OC2CE LL_TIM_OC_DisableClear
CCMR2 OC3CE LL_TIM_OC_DisableClear
CCMR2 OC4CE LL_TIM_OC_DisableClear
LL_TIM_OC_IsEnabledClear
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_IsEnabledClear
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Indicates clearing the output channel on an external event is
enabled for the output channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
State: of bit (1 or 0).
Notes
This function enables clearing the output channel on an
external event.
This function can only be used in Output compare and PWM
modes. It does not work in Forced mode.
Macro IS_TIM_OCXREF_CLEAR_INSTANCE(TIMx) can be
used to check whether or not a timer instance can clear the
OCxREF signal on an external event.
Reference Manual to
LL API cross
reference:
CCMR1 OC1CE LL_TIM_OC_IsEnabledClear
CCMR1 OC2CE LL_TIM_OC_IsEnabledClear
CCMR2 OC3CE LL_TIM_OC_IsEnabledClear
CCMR2 OC4CE LL_TIM_OC_IsEnabledClear
LL_TIM_OC_SetCompareCH1
Function name
__STATIC_INLINE void LL_TIM_OC_SetCompareCH1
(TIM_TypeDef * TIMx, uint32_t CompareValue)
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Function description
Set compare value for output channel 1 (TIMx_CCR1).
Parameters
TIMx: Timer instance
CompareValue: between Min_Data=0 and
Max_Data=65535
Return values
None
Notes
Macro IS_TIM_CC1_INSTANCE(TIMx) can be used to check
whether or not output channel 1 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR1 CCR1 LL_TIM_OC_SetCompareCH1
LL_TIM_OC_SetCompareCH2
Function name
__STATIC_INLINE void LL_TIM_OC_SetCompareCH2
(TIM_TypeDef * TIMx, uint32_t CompareValue)
Function description
Set compare value for output channel 2 (TIMx_CCR2).
Parameters
TIMx: Timer instance
CompareValue: between Min_Data=0 and
Max_Data=65535
Return values
None
Notes
Macro IS_TIM_CC2_INSTANCE(TIMx) can be used to check
whether or not output channel 2 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR2 CCR2 LL_TIM_OC_SetCompareCH2
LL_TIM_OC_SetCompareCH3
Function name
__STATIC_INLINE void LL_TIM_OC_SetCompareCH3
(TIM_TypeDef * TIMx, uint32_t CompareValue)
Function description
Set compare value for output channel 3 (TIMx_CCR3).
Parameters
TIMx: Timer instance
CompareValue: between Min_Data=0 and
Max_Data=65535
Return values
None
Notes
Macro IS_TIM_CC3_INSTANCE(TIMx) can be used to check
whether or not output channel is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR3 CCR3 LL_TIM_OC_SetCompareCH3
LL TIM Generic Driver
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LL_TIM_OC_SetCompareCH4
Function name
__STATIC_INLINE void LL_TIM_OC_SetCompareCH4
(TIM_TypeDef * TIMx, uint32_t CompareValue)
Function description
Set compare value for output channel 4 (TIMx_CCR4).
Parameters
TIMx: Timer instance
CompareValue: between Min_Data=0 and
Max_Data=65535
Return values
None
Notes
Macro IS_TIM_CC4_INSTANCE(TIMx) can be used to check
whether or not output channel 4 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR4 CCR4 LL_TIM_OC_SetCompareCH4
LL_TIM_OC_GetCompareCH1
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetCompareCH1
(TIM_TypeDef * TIMx)
Function description
Get compare value (TIMx_CCR1) set for output channel 1.
Parameters
TIMx: Timer instance
Return values
CompareValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC1_INSTANCE(TIMx) can be used to check
whether or not output channel 1 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR1 CCR1 LL_TIM_OC_GetCompareCH1
LL_TIM_OC_GetCompareCH2
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetCompareCH2
(TIM_TypeDef * TIMx)
Function description
Get compare value (TIMx_CCR2) set for output channel 2.
Parameters
TIMx: Timer instance
Return values
CompareValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC2_INSTANCE(TIMx) can be used to check
whether or not output channel 2 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR2 CCR2 LL_TIM_OC_GetCompareCH2
UM1749
LL TIM Generic Driver
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LL_TIM_OC_GetCompareCH3
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetCompareCH3
(TIM_TypeDef * TIMx)
Function description
Get compare value (TIMx_CCR3) set for output channel 3.
Parameters
TIMx: Timer instance
Return values
CompareValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC3_INSTANCE(TIMx) can be used to check
whether or not output channel 3 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR3 CCR3 LL_TIM_OC_GetCompareCH3
LL_TIM_OC_GetCompareCH4
Function name
__STATIC_INLINE uint32_t LL_TIM_OC_GetCompareCH4
(TIM_TypeDef * TIMx)
Function description
Get compare value (TIMx_CCR4) set for output channel 4.
Parameters
TIMx: Timer instance
Return values
CompareValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC4_INSTANCE(TIMx) can be used to check
whether or not output channel 4 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR4 CCR4 LL_TIM_OC_GetCompareCH4
LL_TIM_IC_Config
Function name
__STATIC_INLINE void LL_TIM_IC_Config (TIM_TypeDef *
TIMx, uint32_t Channel, uint32_t Configuration)
Function description
Configure input channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Configuration: This parameter must be a combination of all
the following values:
LL_TIM_ACTIVEINPUT_DIRECTTI or
LL_TIM_ACTIVEINPUT_INDIRECTTI or
LL_TIM_ACTIVEINPUT_TRC
LL_TIM_ICPSC_DIV1 or ... or LL_TIM_ICPSC_DIV8
LL_TIM_IC_FILTER_FDIV1 or ... or
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LL_TIM_IC_FILTER_FDIV32_N8
LL_TIM_IC_POLARITY_RISING or
LL_TIM_IC_POLARITY_FALLING or
LL_TIM_IC_POLARITY_BOTHEDGE
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 CC1S LL_TIM_IC_Config
CCMR1 IC1PSC LL_TIM_IC_Config
CCMR1 IC1F LL_TIM_IC_Config
CCMR1 CC2S LL_TIM_IC_Config
CCMR1 IC2PSC LL_TIM_IC_Config
CCMR1 IC2F LL_TIM_IC_Config
CCMR2 CC3S LL_TIM_IC_Config
CCMR2 IC3PSC LL_TIM_IC_Config
CCMR2 IC3F LL_TIM_IC_Config
CCMR2 CC4S LL_TIM_IC_Config
CCMR2 IC4PSC LL_TIM_IC_Config
CCMR2 IC4F LL_TIM_IC_Config
CCER CC1P LL_TIM_IC_Config
CCER CC1NP LL_TIM_IC_Config
CCER CC2P LL_TIM_IC_Config
CCER CC2NP LL_TIM_IC_Config
CCER CC3P LL_TIM_IC_Config
CCER CC3NP LL_TIM_IC_Config
CCER CC4P LL_TIM_IC_Config
CCER CC4NP LL_TIM_IC_Config
LL_TIM_IC_SetActiveInput
Function name
__STATIC_INLINE void LL_TIM_IC_SetActiveInput
(TIM_TypeDef * TIMx, uint32_t Channel, uint32_t
ICActiveInput)
Function description
Set the active input.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
ICActiveInput: This parameter can be one of the following
values:
LL_TIM_ACTIVEINPUT_DIRECTTI
LL_TIM_ACTIVEINPUT_INDIRECTTI
LL_TIM_ACTIVEINPUT_TRC
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 CC1S LL_TIM_IC_SetActiveInput
CCMR1 CC2S LL_TIM_IC_SetActiveInput
CCMR2 CC3S LL_TIM_IC_SetActiveInput
CCMR2 CC4S LL_TIM_IC_SetActiveInput
UM1749
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LL_TIM_IC_GetActiveInput
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetActiveInput
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Get the current active input.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
Returned: value can be one of the following values:
LL_TIM_ACTIVEINPUT_DIRECTTI
LL_TIM_ACTIVEINPUT_INDIRECTTI
LL_TIM_ACTIVEINPUT_TRC
Reference Manual to
LL API cross
reference:
CCMR1 CC1S LL_TIM_IC_GetActiveInput
CCMR1 CC2S LL_TIM_IC_GetActiveInput
CCMR2 CC3S LL_TIM_IC_GetActiveInput
CCMR2 CC4S LL_TIM_IC_GetActiveInput
LL_TIM_IC_SetPrescaler
Function name
__STATIC_INLINE void LL_TIM_IC_SetPrescaler
(TIM_TypeDef * TIMx, uint32_t Channel, uint32_t ICPrescaler)
Function description
Set the prescaler of input channel.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
ICPrescaler: This parameter can be one of the following
values:
LL_TIM_ICPSC_DIV1
LL_TIM_ICPSC_DIV2
LL_TIM_ICPSC_DIV4
LL_TIM_ICPSC_DIV8
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 IC1PSC LL_TIM_IC_SetPrescaler
CCMR1 IC2PSC LL_TIM_IC_SetPrescaler
CCMR2 IC3PSC LL_TIM_IC_SetPrescaler
CCMR2 IC4PSC LL_TIM_IC_SetPrescaler
LL_TIM_IC_GetPrescaler
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetPrescaler
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Get the current prescaler value acting on an input channel.
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Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
Returned: value can be one of the following values:
LL_TIM_ICPSC_DIV1
LL_TIM_ICPSC_DIV2
LL_TIM_ICPSC_DIV4
LL_TIM_ICPSC_DIV8
Reference Manual to
LL API cross
reference:
CCMR1 IC1PSC LL_TIM_IC_GetPrescaler
CCMR1 IC2PSC LL_TIM_IC_GetPrescaler
CCMR2 IC3PSC LL_TIM_IC_GetPrescaler
CCMR2 IC4PSC LL_TIM_IC_GetPrescaler
LL_TIM_IC_SetFilter
Function name
__STATIC_INLINE void LL_TIM_IC_SetFilter (TIM_TypeDef *
TIMx, uint32_t Channel, uint32_t ICFilter)
Function description
Set the input filter duration.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
ICFilter: This parameter can be one of the following values:
LL_TIM_IC_FILTER_FDIV1
LL_TIM_IC_FILTER_FDIV1_N2
LL_TIM_IC_FILTER_FDIV1_N4
LL_TIM_IC_FILTER_FDIV1_N8
LL_TIM_IC_FILTER_FDIV2_N6
LL_TIM_IC_FILTER_FDIV2_N8
LL_TIM_IC_FILTER_FDIV4_N6
LL_TIM_IC_FILTER_FDIV4_N8
LL_TIM_IC_FILTER_FDIV8_N6
LL_TIM_IC_FILTER_FDIV8_N8
LL_TIM_IC_FILTER_FDIV16_N5
LL_TIM_IC_FILTER_FDIV16_N6
LL_TIM_IC_FILTER_FDIV16_N8
LL_TIM_IC_FILTER_FDIV32_N5
LL_TIM_IC_FILTER_FDIV32_N6
LL_TIM_IC_FILTER_FDIV32_N8
Return values
None
Reference Manual to
LL API cross
reference:
CCMR1 IC1F LL_TIM_IC_SetFilter
CCMR1 IC2F LL_TIM_IC_SetFilter
CCMR2 IC3F LL_TIM_IC_SetFilter
CCMR2 IC4F LL_TIM_IC_SetFilter
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LL_TIM_IC_GetFilter
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetFilter (TIM_TypeDef
* TIMx, uint32_t Channel)
Function description
Get the input filter duration.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
Returned: value can be one of the following values:
LL_TIM_IC_FILTER_FDIV1
LL_TIM_IC_FILTER_FDIV1_N2
LL_TIM_IC_FILTER_FDIV1_N4
LL_TIM_IC_FILTER_FDIV1_N8
LL_TIM_IC_FILTER_FDIV2_N6
LL_TIM_IC_FILTER_FDIV2_N8
LL_TIM_IC_FILTER_FDIV4_N6
LL_TIM_IC_FILTER_FDIV4_N8
LL_TIM_IC_FILTER_FDIV8_N6
LL_TIM_IC_FILTER_FDIV8_N8
LL_TIM_IC_FILTER_FDIV16_N5
LL_TIM_IC_FILTER_FDIV16_N6
LL_TIM_IC_FILTER_FDIV16_N8
LL_TIM_IC_FILTER_FDIV32_N5
LL_TIM_IC_FILTER_FDIV32_N6
LL_TIM_IC_FILTER_FDIV32_N8
Reference Manual to
LL API cross
reference:
CCMR1 IC1F LL_TIM_IC_GetFilter
CCMR1 IC2F LL_TIM_IC_GetFilter
CCMR2 IC3F LL_TIM_IC_GetFilter
CCMR2 IC4F LL_TIM_IC_GetFilter
LL_TIM_IC_SetPolarity
Function name
__STATIC_INLINE void LL_TIM_IC_SetPolarity (TIM_TypeDef *
TIMx, uint32_t Channel, uint32_t ICPolarity)
Function description
Set the input channel polarity.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
ICPolarity: This parameter can be one of the following
values:
LL_TIM_IC_POLARITY_RISING
LL_TIM_IC_POLARITY_FALLING
LL_TIM_IC_POLARITY_BOTHEDGE
LL TIM Generic Driver
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Return values
None
Reference Manual to
LL API cross
reference:
CCER CC1P LL_TIM_IC_SetPolarity
CCER CC1NP LL_TIM_IC_SetPolarity
CCER CC2P LL_TIM_IC_SetPolarity
CCER CC2NP LL_TIM_IC_SetPolarity
CCER CC3P LL_TIM_IC_SetPolarity
CCER CC3NP LL_TIM_IC_SetPolarity
CCER CC4P LL_TIM_IC_SetPolarity
CCER CC4NP LL_TIM_IC_SetPolarity
LL_TIM_IC_GetPolarity
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetPolarity
(TIM_TypeDef * TIMx, uint32_t Channel)
Function description
Get the current input channel polarity.
Parameters
TIMx: Timer instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
Return values
Returned: value can be one of the following values:
LL_TIM_IC_POLARITY_RISING
LL_TIM_IC_POLARITY_FALLING
LL_TIM_IC_POLARITY_BOTHEDGE
Reference Manual to
LL API cross
reference:
CCER CC1P LL_TIM_IC_GetPolarity
CCER CC1NP LL_TIM_IC_GetPolarity
CCER CC2P LL_TIM_IC_GetPolarity
CCER CC2NP LL_TIM_IC_GetPolarity
CCER CC3P LL_TIM_IC_GetPolarity
CCER CC3NP LL_TIM_IC_GetPolarity
CCER CC4P LL_TIM_IC_GetPolarity
CCER CC4NP LL_TIM_IC_GetPolarity
LL_TIM_IC_EnableXORCombination
Function name
__STATIC_INLINE void LL_TIM_IC_EnableXORCombination
(TIM_TypeDef * TIMx)
Function description
Connect the TIMx_CH1, CH2 and CH3 pins to the TI1 input (XOR
combination).
Parameters
TIMx: Timer instance
Return values
None
Notes
Macro IS_TIM_XOR_INSTANCE(TIMx) can be used to check
whether or not a timer instance provides an XOR input.
Reference Manual to
LL API cross
reference:
CR2 TI1S LL_TIM_IC_EnableXORCombination
UM1749
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LL_TIM_IC_DisableXORCombination
Function name
__STATIC_INLINE void LL_TIM_IC_DisableXORCombination
(TIM_TypeDef * TIMx)
Function description
Disconnect the TIMx_CH1, CH2 and CH3 pins from the TI1 input.
Parameters
TIMx: Timer instance
Return values
None
Notes
Macro IS_TIM_XOR_INSTANCE(TIMx) can be used to check
whether or not a timer instance provides an XOR input.
Reference Manual to
LL API cross
reference:
CR2 TI1S LL_TIM_IC_DisableXORCombination
LL_TIM_IC_IsEnabledXORCombination
Function name
__STATIC_INLINE uint32_t
LL_TIM_IC_IsEnabledXORCombination (TIM_TypeDef * TIMx)
Function description
Indicates whether the TIMx_CH1, CH2 and CH3 pins are
connectected to the TI1 input.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_TIM_XOR_INSTANCE(TIMx) can be used to check
whether or not a timer instance provides an XOR input.
Reference Manual to
LL API cross
reference:
CR2 TI1S LL_TIM_IC_IsEnabledXORCombination
LL_TIM_IC_GetCaptureCH1
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetCaptureCH1
(TIM_TypeDef * TIMx)
Function description
Get captured value for input channel 1.
Parameters
TIMx: Timer instance
Return values
CapturedValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC1_INSTANCE(TIMx) can be used to check
whether or not input channel 1 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR1 CCR1 LL_TIM_IC_GetCaptureCH1
LL_TIM_IC_GetCaptureCH2
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetCaptureCH2
(TIM_TypeDef * TIMx)
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Function description
Get captured value for input channel 2.
Parameters
TIMx: Timer instance
Return values
CapturedValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC2_INSTANCE(TIMx) can be used to check
whether or not input channel 2 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR2 CCR2 LL_TIM_IC_GetCaptureCH2
LL_TIM_IC_GetCaptureCH3
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetCaptureCH3
(TIM_TypeDef * TIMx)
Function description
Get captured value for input channel 3.
Parameters
TIMx: Timer instance
Return values
CapturedValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC3_INSTANCE(TIMx) can be used to check
whether or not input channel 3 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR3 CCR3 LL_TIM_IC_GetCaptureCH3
LL_TIM_IC_GetCaptureCH4
Function name
__STATIC_INLINE uint32_t LL_TIM_IC_GetCaptureCH4
(TIM_TypeDef * TIMx)
Function description
Get captured value for input channel 4.
Parameters
TIMx: Timer instance
Return values
CapturedValue: (between Min_Data=0 and
Max_Data=65535)
Notes
Macro IS_TIM_CC4_INSTANCE(TIMx) can be used to check
whether or not input channel 4 is supported by a timer
instance.
Reference Manual to
LL API cross
reference:
CCR4 CCR4 LL_TIM_IC_GetCaptureCH4
LL_TIM_EnableExternalClock
Function name
__STATIC_INLINE void LL_TIM_EnableExternalClock
(TIM_TypeDef * TIMx)
Function description
Enable external clock mode 2.
UM1749
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Parameters
TIMx: Timer instance
Return values
None
Notes
When external clock mode 2 is enabled the counter is clocked
by any active edge on the ETRF signal.
Macro
IS_TIM_CLOCKSOURCE_ETRMODE2_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports external clock mode2.
Reference Manual to
LL API cross
reference:
SMCR ECE LL_TIM_EnableExternalClock
LL_TIM_DisableExternalClock
Function name
__STATIC_INLINE void LL_TIM_DisableExternalClock
(TIM_TypeDef * TIMx)
Function description
Disable external clock mode 2.
Parameters
TIMx: Timer instance
Return values
None
Notes
Macro
IS_TIM_CLOCKSOURCE_ETRMODE2_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports external clock mode2.
Reference Manual to
LL API cross
reference:
SMCR ECE LL_TIM_DisableExternalClock
LL_TIM_IsEnabledExternalClock
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledExternalClock
(TIM_TypeDef * TIMx)
Function description
Indicate whether external clock mode 2 is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_TIM_CLOCKSOURCE_ETRMODE2_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports external clock mode2.
Reference Manual to
LL API cross
reference:
SMCR ECE LL_TIM_IsEnabledExternalClock
LL_TIM_SetClockSource
Function name
__STATIC_INLINE void LL_TIM_SetClockSource
(TIM_TypeDef * TIMx, uint32_t ClockSource)
Function description
Set the clock source of the counter clock.
LL TIM Generic Driver
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Parameters
TIMx: Timer instance
ClockSource: This parameter can be one of the following
values:
LL_TIM_CLOCKSOURCE_INTERNAL
LL_TIM_CLOCKSOURCE_EXT_MODE1
LL_TIM_CLOCKSOURCE_EXT_MODE2
Return values
None
Notes
when selected clock source is external clock mode 1, the
timer input the external clock is applied is selected by calling
the LL_TIM_SetTriggerInput() function. This timer input must
be configured by calling the LL_TIM_IC_Config() function.
Macro
IS_TIM_CLOCKSOURCE_ETRMODE1_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports external clock mode1.
Macro
IS_TIM_CLOCKSOURCE_ETRMODE2_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports external clock mode2.
Reference Manual to
LL API cross
reference:
SMCR SMS LL_TIM_SetClockSource
SMCR ECE LL_TIM_SetClockSource
LL_TIM_SetEncoderMode
Function name
__STATIC_INLINE void LL_TIM_SetEncoderMode
(TIM_TypeDef * TIMx, uint32_t EncoderMode)
Function description
Set the encoder interface mode.
Parameters
TIMx: Timer instance
EncoderMode: This parameter can be one of the following
values:
LL_TIM_ENCODERMODE_X2_TI1
LL_TIM_ENCODERMODE_X2_TI2
LL_TIM_ENCODERMODE_X4_TI12
Return values
None
Notes
Macro IS_TIM_ENCODER_INTERFACE_INSTANCE(TIMx)
can be used to check whether or not a timer instance
supports the encoder mode.
Reference Manual to
LL API cross
reference:
SMCR SMS LL_TIM_SetEncoderMode
LL_TIM_SetTriggerOutput
Function name
__STATIC_INLINE void LL_TIM_SetTriggerOutput
(TIM_TypeDef * TIMx, uint32_t TimerSynchronization)
Function description
Set the trigger output (TRGO) used for timer synchronization .
Parameters
TIMx: Timer instance
TimerSynchronization: This parameter can be one of the
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following values:
LL_TIM_TRGO_RESET
LL_TIM_TRGO_ENABLE
LL_TIM_TRGO_UPDATE
LL_TIM_TRGO_CC1IF
LL_TIM_TRGO_OC1REF
LL_TIM_TRGO_OC2REF
LL_TIM_TRGO_OC3REF
LL_TIM_TRGO_OC4REF
Return values
None
Notes
Macro IS_TIM_MASTER_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a
master timer.
Reference Manual to
LL API cross
reference:
CR2 MMS LL_TIM_SetTriggerOutput
LL_TIM_SetSlaveMode
Function name
__STATIC_INLINE void LL_TIM_SetSlaveMode (TIM_TypeDef *
TIMx, uint32_t SlaveMode)
Function description
Set the synchronization mode of a slave timer.
Parameters
TIMx: Timer instance
SlaveMode: This parameter can be one of the following
values:
LL_TIM_SLAVEMODE_DISABLED
LL_TIM_SLAVEMODE_RESET
LL_TIM_SLAVEMODE_GATED
LL_TIM_SLAVEMODE_TRIGGER
Return values
None
Notes
Macro IS_TIM_SLAVE_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a slave
timer.
Reference Manual to
LL API cross
reference:
SMCR SMS LL_TIM_SetSlaveMode
LL_TIM_SetTriggerInput
Function name
__STATIC_INLINE void LL_TIM_SetTriggerInput (TIM_TypeDef
* TIMx, uint32_t TriggerInput)
Function description
Set the selects the trigger input to be used to synchronize the
counter.
Parameters
TIMx: Timer instance
TriggerInput: This parameter can be one of the following
values:
LL_TIM_TS_ITR0
LL_TIM_TS_ITR1
LL_TIM_TS_ITR2
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LL_TIM_TS_ITR3
LL_TIM_TS_TI1F_ED
LL_TIM_TS_TI1FP1
LL_TIM_TS_TI2FP2
LL_TIM_TS_ETRF
Return values
None
Notes
Macro IS_TIM_SLAVE_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a slave
timer.
Reference Manual to
LL API cross
reference:
SMCR TS LL_TIM_SetTriggerInput
LL_TIM_EnableMasterSlaveMode
Function name
__STATIC_INLINE void LL_TIM_EnableMasterSlaveMode
(TIM_TypeDef * TIMx)
Function description
Enable the Master/Slave mode.
Parameters
TIMx: Timer instance
Return values
None
Notes
Macro IS_TIM_SLAVE_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a slave
timer.
Reference Manual to
LL API cross
reference:
SMCR MSM LL_TIM_EnableMasterSlaveMode
LL_TIM_DisableMasterSlaveMode
Function name
__STATIC_INLINE void LL_TIM_DisableMasterSlaveMode
(TIM_TypeDef * TIMx)
Function description
Disable the Master/Slave mode.
Parameters
TIMx: Timer instance
Return values
None
Notes
Macro IS_TIM_SLAVE_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a slave
timer.
Reference Manual to
LL API cross
reference:
SMCR MSM LL_TIM_DisableMasterSlaveMode
LL_TIM_IsEnabledMasterSlaveMode
Function name
__STATIC_INLINE uint32_t
LL_TIM_IsEnabledMasterSlaveMode (TIM_TypeDef * TIMx)
Function description
Indicates whether the Master/Slave mode is enabled.
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Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_TIM_SLAVE_INSTANCE(TIMx) can be used to
check whether or not a timer instance can operate as a slave
timer.
Reference Manual to
LL API cross
reference:
SMCR MSM LL_TIM_IsEnabledMasterSlaveMode
LL_TIM_ConfigETR
Function name
__STATIC_INLINE void LL_TIM_ConfigETR (TIM_TypeDef *
TIMx, uint32_t ETRPolarity, uint32_t ETRPrescaler, uint32_t
ETRFilter)
Function description
Configure the external trigger (ETR) input.
Parameters
TIMx: Timer instance
ETRPolarity: This parameter can be one of the following
values:
LL_TIM_ETR_POLARITY_NONINVERTED
LL_TIM_ETR_POLARITY_INVERTED
ETRPrescaler: This parameter can be one of the following
values:
LL_TIM_ETR_PRESCALER_DIV1
LL_TIM_ETR_PRESCALER_DIV2
LL_TIM_ETR_PRESCALER_DIV4
LL_TIM_ETR_PRESCALER_DIV8
ETRFilter: This parameter can be one of the following
values:
LL_TIM_ETR_FILTER_FDIV1
LL_TIM_ETR_FILTER_FDIV1_N2
LL_TIM_ETR_FILTER_FDIV1_N4
LL_TIM_ETR_FILTER_FDIV1_N8
LL_TIM_ETR_FILTER_FDIV2_N6
LL_TIM_ETR_FILTER_FDIV2_N8
LL_TIM_ETR_FILTER_FDIV4_N6
LL_TIM_ETR_FILTER_FDIV4_N8
LL_TIM_ETR_FILTER_FDIV8_N6
LL_TIM_ETR_FILTER_FDIV8_N8
LL_TIM_ETR_FILTER_FDIV16_N5
LL_TIM_ETR_FILTER_FDIV16_N6
LL_TIM_ETR_FILTER_FDIV16_N8
LL_TIM_ETR_FILTER_FDIV32_N5
LL_TIM_ETR_FILTER_FDIV32_N6
LL_TIM_ETR_FILTER_FDIV32_N8
Return values
None
Notes
Macro IS_TIM_ETR_INSTANCE(TIMx) can be used to check
whether or not a timer instance provides an external trigger
input.
Reference Manual to
SMCR ETP LL_TIM_ConfigETR
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LL API cross
reference:
SMCR ETPS LL_TIM_ConfigETR
SMCR ETF LL_TIM_ConfigETR
LL_TIM_ConfigDMABurst
Function name
__STATIC_INLINE void LL_TIM_ConfigDMABurst
(TIM_TypeDef * TIMx, uint32_t DMABurstBaseAddress,
uint32_t DMABurstLength)
Function description
Configures the timer DMA burst feature.
Parameters
TIMx: Timer instance
DMABurstBaseAddress: This parameter can be one of the
following values:
LL_TIM_DMABURST_BASEADDR_CR1
LL_TIM_DMABURST_BASEADDR_CR2
LL_TIM_DMABURST_BASEADDR_SMCR
LL_TIM_DMABURST_BASEADDR_DIER
LL_TIM_DMABURST_BASEADDR_SR
LL_TIM_DMABURST_BASEADDR_EGR
LL_TIM_DMABURST_BASEADDR_CCMR1
LL_TIM_DMABURST_BASEADDR_CCMR2
LL_TIM_DMABURST_BASEADDR_CCER
LL_TIM_DMABURST_BASEADDR_CNT
LL_TIM_DMABURST_BASEADDR_PSC
LL_TIM_DMABURST_BASEADDR_ARR
LL_TIM_DMABURST_BASEADDR_RCR
LL_TIM_DMABURST_BASEADDR_CCR1
LL_TIM_DMABURST_BASEADDR_CCR2
LL_TIM_DMABURST_BASEADDR_CCR3
LL_TIM_DMABURST_BASEADDR_CCR4
LL_TIM_DMABURST_BASEADDR_BDTR
LL_TIM_DMABURST_BASEADDR_CCMR3
LL_TIM_DMABURST_BASEADDR_CCR5
LL_TIM_DMABURST_BASEADDR_CCR6
LL_TIM_DMABURST_BASEADDR_OR1
LL_TIM_DMABURST_BASEADDR_OR2
LL_TIM_DMABURST_BASEADDR_OR3
DMABurstLength: This parameter can be one of the
following values:
LL_TIM_DMABURST_LENGTH_1TRANSFER
LL_TIM_DMABURST_LENGTH_2TRANSFERS
LL_TIM_DMABURST_LENGTH_3TRANSFERS
LL_TIM_DMABURST_LENGTH_4TRANSFERS
LL_TIM_DMABURST_LENGTH_5TRANSFERS
LL_TIM_DMABURST_LENGTH_6TRANSFERS
LL_TIM_DMABURST_LENGTH_7TRANSFERS
LL_TIM_DMABURST_LENGTH_8TRANSFERS
LL_TIM_DMABURST_LENGTH_9TRANSFERS
LL_TIM_DMABURST_LENGTH_10TRANSFERS
LL_TIM_DMABURST_LENGTH_11TRANSFERS
LL_TIM_DMABURST_LENGTH_12TRANSFERS
LL_TIM_DMABURST_LENGTH_13TRANSFERS
LL_TIM_DMABURST_LENGTH_14TRANSFERS
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LL_TIM_DMABURST_LENGTH_15TRANSFERS
LL_TIM_DMABURST_LENGTH_16TRANSFERS
LL_TIM_DMABURST_LENGTH_17TRANSFERS
LL_TIM_DMABURST_LENGTH_18TRANSFERS
Return values
None
Notes
Macro IS_TIM_DMABURST_INSTANCE(TIMx) can be used
to check whether or not a timer instance supports the DMA
burst mode.
Reference Manual to
LL API cross
reference:
DCR DBL LL_TIM_ConfigDMABurst
DCR DBA LL_TIM_ConfigDMABurst
LL_TIM_SetRemap
Function name
__STATIC_INLINE void LL_TIM_SetRemap (TIM_TypeDef *
TIMx, uint32_t Remap)
Function description
Remap TIM inputs (input channel, internal/external triggers).
Parameters
TIMx: Timer instance
Remap: Remap params depends on the TIMx. Description
available only in CHM version of the User Manual (not in
.pdf). Otherwise see Reference Manual description of OR
registers.
Return values
None
Notes
Macro IS_TIM_REMAP_INSTANCE(TIMx) can be used to
check whether or not a some timer inputs can be remapped.
Reference Manual to
LL API cross
reference:
TIM2_OR ETR_RMP LL_TIM_SetRemap
TIM2_OR TI4_RMP LL_TIM_SetRemap
TIM21_OR ETR_RMP LL_TIM_SetRemap
TIM21_OR TI1_RMP LL_TIM_SetRemap
TIM21_OR TI2_RMP LL_TIM_SetRemap
TIM22_OR ETR_RMP LL_TIM_SetRemap
TIM22_OR TI1_RMP LL_TIM_SetRemap
TIM3_OR ETR_RMP LL_TIM_SetRemap
TIM3_OR TI1_RMP LL_TIM_SetRemap
TIM3_OR TI2_RMP LL_TIM_SetRemap
TIM3_OR TI4_RMP LL_TIM_SetRemap
LL_TIM_SetOCRefClearInputSource
Function name
__STATIC_INLINE void LL_TIM_SetOCRefClearInputSource
(TIM_TypeDef * TIMx, uint32_t OCRefClearInputSource)
Function description
Set the OCREF clear input source.
Parameters
TIMx: Timer instance
OCRefClearInputSource: This parameter can be one of the
following values:
LL_TIM_OCREF_CLR_INT_NC
LL_TIM_OCREF_CLR_INT_ETR
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Return values
None
Notes
The OCxREF signal of a given channel can be cleared when
a high level is applied on the OCREF_CLR_INPUT
This function can only be used in Output compare and PWM
modes.
Reference Manual to
LL API cross
reference:
SMCR OCCS LL_TIM_SetOCRefClearInputSource
LL_TIM_ClearFlag_UPDATE
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_UPDATE
(TIM_TypeDef * TIMx)
Function description
Clear the update interrupt flag (UIF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR UIF LL_TIM_ClearFlag_UPDATE
LL_TIM_IsActiveFlag_UPDATE
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_UPDATE
(TIM_TypeDef * TIMx)
Function description
Indicate whether update interrupt flag (UIF) is set (update interrupt
is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR UIF LL_TIM_IsActiveFlag_UPDATE
LL_TIM_ClearFlag_CC1
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC1 (TIM_TypeDef
* TIMx)
Function description
Clear the Capture/Compare 1 interrupt flag (CC1F).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC1IF LL_TIM_ClearFlag_CC1
LL_TIM_IsActiveFlag_CC1
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC1
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(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 1 interrupt flag (CC1F) is set
(Capture/Compare 1 interrupt is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC1IF LL_TIM_IsActiveFlag_CC1
LL_TIM_ClearFlag_CC2
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC2 (TIM_TypeDef
* TIMx)
Function description
Clear the Capture/Compare 2 interrupt flag (CC2F).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC2IF LL_TIM_ClearFlag_CC2
LL_TIM_IsActiveFlag_CC2
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC2
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 2 interrupt flag (CC2F) is set
(Capture/Compare 2 interrupt is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC2IF LL_TIM_IsActiveFlag_CC2
LL_TIM_ClearFlag_CC3
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC3 (TIM_TypeDef
* TIMx)
Function description
Clear the Capture/Compare 3 interrupt flag (CC3F).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC3IF LL_TIM_ClearFlag_CC3
LL TIM Generic Driver
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LL_TIM_IsActiveFlag_CC3
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC3
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 3 interrupt flag (CC3F) is set
(Capture/Compare 3 interrupt is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC3IF LL_TIM_IsActiveFlag_CC3
LL_TIM_ClearFlag_CC4
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC4 (TIM_TypeDef
* TIMx)
Function description
Clear the Capture/Compare 4 interrupt flag (CC4F).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC4IF LL_TIM_ClearFlag_CC4
LL_TIM_IsActiveFlag_CC4
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC4
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 4 interrupt flag (CC4F) is set
(Capture/Compare 4 interrupt is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC4IF LL_TIM_IsActiveFlag_CC4
LL_TIM_ClearFlag_TRIG
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_TRIG (TIM_TypeDef
* TIMx)
Function description
Clear the trigger interrupt flag (TIF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR TIF LL_TIM_ClearFlag_TRIG
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LL_TIM_IsActiveFlag_TRIG
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_TRIG
(TIM_TypeDef * TIMx)
Function description
Indicate whether trigger interrupt flag (TIF) is set (trigger interrupt
is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR TIF LL_TIM_IsActiveFlag_TRIG
LL_TIM_ClearFlag_CC1OVR
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC1OVR
(TIM_TypeDef * TIMx)
Function description
Clear the Capture/Compare 1 over-capture interrupt flag (CC1OF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC1OF LL_TIM_ClearFlag_CC1OVR
LL_TIM_IsActiveFlag_CC1OVR
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC1OVR
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 1 over-capture interrupt flag
(CC1OF) is set (Capture/Compare 1 interrupt is pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC1OF LL_TIM_IsActiveFlag_CC1OVR
LL_TIM_ClearFlag_CC2OVR
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC2OVR
(TIM_TypeDef * TIMx)
Function description
Clear the Capture/Compare 2 over-capture interrupt flag (CC2OF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC2OF LL_TIM_ClearFlag_CC2OVR
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LL_TIM_IsActiveFlag_CC2OVR
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC2OVR
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 2 over-capture interrupt flag
(CC2OF) is set (Capture/Compare 2 over-capture interrupt is
pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC2OF LL_TIM_IsActiveFlag_CC2OVR
LL_TIM_ClearFlag_CC3OVR
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC3OVR
(TIM_TypeDef * TIMx)
Function description
Clear the Capture/Compare 3 over-capture interrupt flag (CC3OF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
SR CC3OF LL_TIM_ClearFlag_CC3OVR
LL_TIM_IsActiveFlag_CC3OVR
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC3OVR
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 3 over-capture interrupt flag
(CC3OF) is set (Capture/Compare 3 over-capture interrupt is
pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC3OF LL_TIM_IsActiveFlag_CC3OVR
LL_TIM_ClearFlag_CC4OVR
Function name
__STATIC_INLINE void LL_TIM_ClearFlag_CC4OVR
(TIM_TypeDef * TIMx)
Function description
Clear the Capture/Compare 4 over-capture interrupt flag (CC4OF).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
SR CC4OF LL_TIM_ClearFlag_CC4OVR
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LL_TIM_IsActiveFlag_CC4OVR
Function name
__STATIC_INLINE uint32_t LL_TIM_IsActiveFlag_CC4OVR
(TIM_TypeDef * TIMx)
Function description
Indicate whether Capture/Compare 4 over-capture interrupt flag
(CC4OF) is set (Capture/Compare 4 over-capture interrupt is
pending).
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
SR CC4OF LL_TIM_IsActiveFlag_CC4OVR
LL_TIM_EnableIT_UPDATE
Function name
__STATIC_INLINE void LL_TIM_EnableIT_UPDATE
(TIM_TypeDef * TIMx)
Function description
Enable update interrupt (UIE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER UIE LL_TIM_EnableIT_UPDATE
LL_TIM_DisableIT_UPDATE
Function name
__STATIC_INLINE void LL_TIM_DisableIT_UPDATE
(TIM_TypeDef * TIMx)
Function description
Disable update interrupt (UIE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER UIE LL_TIM_DisableIT_UPDATE
LL_TIM_IsEnabledIT_UPDATE
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_UPDATE
(TIM_TypeDef * TIMx)
Function description
Indicates whether the update interrupt (UIE) is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
DIER UIE LL_TIM_IsEnabledIT_UPDATE
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LL_TIM_EnableIT_CC1
Function name
__STATIC_INLINE void LL_TIM_EnableIT_CC1 (TIM_TypeDef *
TIMx)
Function description
Enable capture/compare 1 interrupt (CC1IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC1IE LL_TIM_EnableIT_CC1
LL_TIM_DisableIT_CC1
Function name
__STATIC_INLINE void LL_TIM_DisableIT_CC1 (TIM_TypeDef
* TIMx)
Function description
Disable capture/compare 1 interrupt (CC1IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC1IE LL_TIM_DisableIT_CC1
LL_TIM_IsEnabledIT_CC1
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_CC1
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 1 interrupt (CC1IE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC1IE LL_TIM_IsEnabledIT_CC1
LL_TIM_EnableIT_CC2
Function name
__STATIC_INLINE void LL_TIM_EnableIT_CC2 (TIM_TypeDef *
TIMx)
Function description
Enable capture/compare 2 interrupt (CC2IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
DIER CC2IE LL_TIM_EnableIT_CC2
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LL_TIM_DisableIT_CC2
Function name
__STATIC_INLINE void LL_TIM_DisableIT_CC2 (TIM_TypeDef
* TIMx)
Function description
Disable capture/compare 2 interrupt (CC2IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC2IE LL_TIM_DisableIT_CC2
LL_TIM_IsEnabledIT_CC2
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_CC2
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 2 interrupt (CC2IE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC2IE LL_TIM_IsEnabledIT_CC2
LL_TIM_EnableIT_CC3
Function name
__STATIC_INLINE void LL_TIM_EnableIT_CC3 (TIM_TypeDef *
TIMx)
Function description
Enable capture/compare 3 interrupt (CC3IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC3IE LL_TIM_EnableIT_CC3
LL_TIM_DisableIT_CC3
Function name
__STATIC_INLINE void LL_TIM_DisableIT_CC3 (TIM_TypeDef
* TIMx)
Function description
Disable capture/compare 3 interrupt (CC3IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
DIER CC3IE LL_TIM_DisableIT_CC3
LL TIM Generic Driver
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LL_TIM_IsEnabledIT_CC3
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_CC3
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 3 interrupt (CC3IE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC3IE LL_TIM_IsEnabledIT_CC3
LL_TIM_EnableIT_CC4
Function name
__STATIC_INLINE void LL_TIM_EnableIT_CC4 (TIM_TypeDef *
TIMx)
Function description
Enable capture/compare 4 interrupt (CC4IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC4IE LL_TIM_EnableIT_CC4
LL_TIM_DisableIT_CC4
Function name
__STATIC_INLINE void LL_TIM_DisableIT_CC4 (TIM_TypeDef
* TIMx)
Function description
Disable capture/compare 4 interrupt (CC4IE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC4IE LL_TIM_DisableIT_CC4
LL_TIM_IsEnabledIT_CC4
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_CC4
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 4 interrupt (CC4IE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
DIER CC4IE LL_TIM_IsEnabledIT_CC4
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LL_TIM_EnableIT_TRIG
Function name
__STATIC_INLINE void LL_TIM_EnableIT_TRIG (TIM_TypeDef
* TIMx)
Function description
Enable trigger interrupt (TIE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER TIE LL_TIM_EnableIT_TRIG
LL_TIM_DisableIT_TRIG
Function name
__STATIC_INLINE void LL_TIM_DisableIT_TRIG (TIM_TypeDef
* TIMx)
Function description
Disable trigger interrupt (TIE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER TIE LL_TIM_DisableIT_TRIG
LL_TIM_IsEnabledIT_TRIG
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledIT_TRIG
(TIM_TypeDef * TIMx)
Function description
Indicates whether the trigger interrupt (TIE) is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER TIE LL_TIM_IsEnabledIT_TRIG
LL_TIM_EnableDMAReq_UPDATE
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_UPDATE
(TIM_TypeDef * TIMx)
Function description
Enable update DMA request (UDE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER UDE LL_TIM_EnableDMAReq_UPDATE
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LL_TIM_DisableDMAReq_UPDATE
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_UPDATE
(TIM_TypeDef * TIMx)
Function description
Disable update DMA request (UDE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER UDE LL_TIM_DisableDMAReq_UPDATE
LL_TIM_IsEnabledDMAReq_UPDATE
Function name
__STATIC_INLINE uint32_t
LL_TIM_IsEnabledDMAReq_UPDATE (TIM_TypeDef * TIMx)
Function description
Indicates whether the update DMA request (UDE) is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER UDE LL_TIM_IsEnabledDMAReq_UPDATE
LL_TIM_EnableDMAReq_CC1
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_CC1
(TIM_TypeDef * TIMx)
Function description
Enable capture/compare 1 DMA request (CC1DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC1DE LL_TIM_EnableDMAReq_CC1
LL_TIM_DisableDMAReq_CC1
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_CC1
(TIM_TypeDef * TIMx)
Function description
Disable capture/compare 1 DMA request (CC1DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC1DE LL_TIM_DisableDMAReq_CC1
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LL_TIM_IsEnabledDMAReq_CC1
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledDMAReq_CC1
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 1 DMA request (CC1DE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC1DE LL_TIM_IsEnabledDMAReq_CC1
LL_TIM_EnableDMAReq_CC2
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_CC2
(TIM_TypeDef * TIMx)
Function description
Enable capture/compare 2 DMA request (CC2DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC2DE LL_TIM_EnableDMAReq_CC2
LL_TIM_DisableDMAReq_CC2
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_CC2
(TIM_TypeDef * TIMx)
Function description
Disable capture/compare 2 DMA request (CC2DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC2DE LL_TIM_DisableDMAReq_CC2
LL_TIM_IsEnabledDMAReq_CC2
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledDMAReq_CC2
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 2 DMA request (CC2DE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC2DE LL_TIM_IsEnabledDMAReq_CC2
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LL_TIM_EnableDMAReq_CC3
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_CC3
(TIM_TypeDef * TIMx)
Function description
Enable capture/compare 3 DMA request (CC3DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC3DE LL_TIM_EnableDMAReq_CC3
LL_TIM_DisableDMAReq_CC3
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_CC3
(TIM_TypeDef * TIMx)
Function description
Disable capture/compare 3 DMA request (CC3DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC3DE LL_TIM_DisableDMAReq_CC3
LL_TIM_IsEnabledDMAReq_CC3
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledDMAReq_CC3
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 3 DMA request (CC3DE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC3DE LL_TIM_IsEnabledDMAReq_CC3
LL_TIM_EnableDMAReq_CC4
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_CC4
(TIM_TypeDef * TIMx)
Function description
Enable capture/compare 4 DMA request (CC4DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC4DE LL_TIM_EnableDMAReq_CC4
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LL_TIM_DisableDMAReq_CC4
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_CC4
(TIM_TypeDef * TIMx)
Function description
Disable capture/compare 4 DMA request (CC4DE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER CC4DE LL_TIM_DisableDMAReq_CC4
LL_TIM_IsEnabledDMAReq_CC4
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledDMAReq_CC4
(TIM_TypeDef * TIMx)
Function description
Indicates whether the capture/compare 4 DMA request (CC4DE) is
enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER CC4DE LL_TIM_IsEnabledDMAReq_CC4
LL_TIM_EnableDMAReq_TRIG
Function name
__STATIC_INLINE void LL_TIM_EnableDMAReq_TRIG
(TIM_TypeDef * TIMx)
Function description
Enable trigger interrupt (TDE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER TDE LL_TIM_EnableDMAReq_TRIG
LL_TIM_DisableDMAReq_TRIG
Function name
__STATIC_INLINE void LL_TIM_DisableDMAReq_TRIG
(TIM_TypeDef * TIMx)
Function description
Disable trigger interrupt (TDE).
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
DIER TDE LL_TIM_DisableDMAReq_TRIG
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LL_TIM_IsEnabledDMAReq_TRIG
Function name
__STATIC_INLINE uint32_t LL_TIM_IsEnabledDMAReq_TRIG
(TIM_TypeDef * TIMx)
Function description
Indicates whether the trigger interrupt (TDE) is enabled.
Parameters
TIMx: Timer instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
DIER TDE LL_TIM_IsEnabledDMAReq_TRIG
LL_TIM_GenerateEvent_UPDATE
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_UPDATE
(TIM_TypeDef * TIMx)
Function description
Generate an update event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR UG LL_TIM_GenerateEvent_UPDATE
LL_TIM_GenerateEvent_CC1
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_CC1
(TIM_TypeDef * TIMx)
Function description
Generate Capture/Compare 1 event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR CC1G LL_TIM_GenerateEvent_CC1
LL_TIM_GenerateEvent_CC2
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_CC2
(TIM_TypeDef * TIMx)
Function description
Generate Capture/Compare 2 event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR CC2G LL_TIM_GenerateEvent_CC2
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LL_TIM_GenerateEvent_CC3
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_CC3
(TIM_TypeDef * TIMx)
Function description
Generate Capture/Compare 3 event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR CC3G LL_TIM_GenerateEvent_CC3
LL_TIM_GenerateEvent_CC4
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_CC4
(TIM_TypeDef * TIMx)
Function description
Generate Capture/Compare 4 event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR CC4G LL_TIM_GenerateEvent_CC4
LL_TIM_GenerateEvent_TRIG
Function name
__STATIC_INLINE void LL_TIM_GenerateEvent_TRIG
(TIM_TypeDef * TIMx)
Function description
Generate trigger event.
Parameters
TIMx: Timer instance
Return values
None
Reference Manual to
LL API cross
reference:
EGR TG LL_TIM_GenerateEvent_TRIG
LL_TIM_DeInit
Function name
ErrorStatus LL_TIM_DeInit (TIM_TypeDef * TIMx)
Function description
Set TIMx registers to their reset values.
Parameters
TIMx: Timer instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: TIMx registers are de-initialized
ERROR: invalid TIMx instance
LL_TIM_StructInit
Function name
void LL_TIM_StructInit (LL_TIM_InitTypeDef * TIM_InitStruct)
Function description
Set the fields of the timebase unit configuration data structure to
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their default values.
Parameters
TIM_InitStruct: pointer to a LL_TIM_InitTypeDef structure
(timebase unit configuration data structure)
Return values
None
LL_TIM_Init
Function name
ErrorStatus LL_TIM_Init (TIM_TypeDef * TIMx,
LL_TIM_InitTypeDef * TIM_InitStruct)
Function description
Configure the TIMx timebase unit.
Parameters
TIMx: Timer Instance
TIM_InitStruct: pointer to a LL_TIM_InitTypeDef structure
(TIMx timebase unit configuration data structure)
Return values
An: ErrorStatus enumeration value:
SUCCESS: TIMx registers are de-initialized
ERROR: not applicable
LL_TIM_OC_StructInit
Function name
void LL_TIM_OC_StructInit (LL_TIM_OC_InitTypeDef *
TIM_OC_InitStruct)
Function description
Set the fields of the TIMx output channel configuration data
structure to their default values.
Parameters
TIM_OC_InitStruct: pointer to a LL_TIM_OC_InitTypeDef
structure (the output channel configuration data structure)
Return values
None
LL_TIM_OC_Init
Function name
ErrorStatus LL_TIM_OC_Init (TIM_TypeDef * TIMx, uint32_t
Channel, LL_TIM_OC_InitTypeDef * TIM_OC_InitStruct)
Function description
Configure the TIMx output channel.
Parameters
TIMx: Timer Instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
TIM_OC_InitStruct: pointer to a LL_TIM_OC_InitTypeDef
structure (TIMx output channel configuration data structure)
Return values
An: ErrorStatus enumeration value:
SUCCESS: TIMx output channel is initialized
ERROR: TIMx output channel is not initialized
LL_TIM_IC_StructInit
Function name
void LL_TIM_IC_StructInit (LL_TIM_IC_InitTypeDef *
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TIM_ICInitStruct)
Function description
Set the fields of the TIMx input channel configuration data
structure to their default values.
Parameters
TIM_ICInitStruct: pointer to a LL_TIM_IC_InitTypeDef
structure (the input channel configuration data structure)
Return values
None
LL_TIM_IC_Init
Function name
ErrorStatus LL_TIM_IC_Init (TIM_TypeDef * TIMx, uint32_t
Channel, LL_TIM_IC_InitTypeDef * TIM_IC_InitStruct)
Function description
Configure the TIMx input channel.
Parameters
TIMx: Timer Instance
Channel: This parameter can be one of the following values:
LL_TIM_CHANNEL_CH1
LL_TIM_CHANNEL_CH2
LL_TIM_CHANNEL_CH3
LL_TIM_CHANNEL_CH4
TIM_IC_InitStruct: pointer to a LL_TIM_IC_InitTypeDef
structure (TIMx input channel configuration data structure)
Return values
An: ErrorStatus enumeration value:
SUCCESS: TIMx output channel is initialized
ERROR: TIMx output channel is not initialized
LL_TIM_ENCODER_StructInit
Function name
void LL_TIM_ENCODER_StructInit
(LL_TIM_ENCODER_InitTypeDef * TIM_EncoderInitStruct)
Function description
Fills each TIM_EncoderInitStruct field with its default value.
Parameters
TIM_EncoderInitStruct: pointer to a
LL_TIM_ENCODER_InitTypeDef structure (encoder interface
configuration data structure)
Return values
None
LL_TIM_ENCODER_Init
Function name
ErrorStatus LL_TIM_ENCODER_Init (TIM_TypeDef * TIMx,
LL_TIM_ENCODER_InitTypeDef * TIM_EncoderInitStruct)
Function description
Configure the encoder interface of the timer instance.
Parameters
TIMx: Timer Instance
TIM_EncoderInitStruct: pointer to a
LL_TIM_ENCODER_InitTypeDef structure (TIMx encoder
interface configuration data structure)
Return values
An: ErrorStatus enumeration value:
SUCCESS: TIMx registers are de-initialized
ERROR: not applicable
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74.3 TIM Firmware driver defines
74.3.1 TIM
Active Input Selection
LL_TIM_ACTIVEINPUT_DIRECTTI
ICx is mapped on TIx
LL_TIM_ACTIVEINPUT_INDIRECTTI
ICx is mapped on TIy
LL_TIM_ACTIVEINPUT_TRC
ICx is mapped on TRC
Capture Compare DMA Request
LL_TIM_CCDMAREQUEST_CC
CCx DMA request sent when CCx event occurs
LL_TIM_CCDMAREQUEST_UPDATE
CCx DMA requests sent when update event
occurs
Channel
LL_TIM_CHANNEL_CH1
Timer input/output channel 1
LL_TIM_CHANNEL_CH2
Timer input/output channel 2
LL_TIM_CHANNEL_CH3
Timer input/output channel 3
LL_TIM_CHANNEL_CH4
Timer input/output channel 4
Clock Division
LL_TIM_CLOCKDIVISION_DIV1
tDTS=tCK_INT
LL_TIM_CLOCKDIVISION_DIV2
tDTS=2*tCK_INT
LL_TIM_CLOCKDIVISION_DIV4
tDTS=4*tCK_INT
Clock Source
LL_TIM_CLOCKSOURCE_INTERNAL
The timer is clocked by the internal clock
provided from the RCC
LL_TIM_CLOCKSOURCE_EXT_MODE1
Counter counts at each rising or falling edge on
a selected inpu t
LL_TIM_CLOCKSOURCE_EXT_MODE2
Counter counts at each rising or falling edge on
the external trigger input ETR
Counter Direction
LL_TIM_COUNTERDIRECTION_UP
Timer counter counts up
LL_TIM_COUNTERDIRECTION_DOWN
Timer counter counts down
Counter Mode
LL_TIM_COUNTERMODE_UP
Counter used as upcounter
LL_TIM_COUNTERMODE_DOWN
Counter used as downcounter
LL_TIM_COUNTERMODE_CENTER_UP
The counter counts up and down
alternatively. Output compare interrupt
flags of output channels are set only
when the counter is counting down.
LL_TIM_COUNTERMODE_CENTER_DOWN
The counter counts up and down
alternatively. Output compare interrupt
flags of output channels are set only
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when the counter is counting up
LL_TIM_COUNTERMODE_CENTER_UP_DOWN
The counter counts up and down
alternatively. Output compare interrupt
flags of output channels are set only
when the counter is counting up or
down.
DMA Burst Base Address
LL_TIM_DMABURST_BASEADDR_CR1
TIMx_CR1 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CR2
TIMx_CR2 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_SMCR
TIMx_SMCR register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_DIER
TIMx_DIER register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_SR
TIMx_SR register is the DMA base address
for DMA burst
LL_TIM_DMABURST_BASEADDR_EGR
TIMx_EGR register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCMR1
TIMx_CCMR1 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCMR2
TIMx_CCMR2 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCER
TIMx_CCER register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CNT
TIMx_CNT register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_PSC
TIMx_PSC register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_ARR
TIMx_ARR register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_RCR
TIMx_RCR register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR1
TIMx_CCR1 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR2
TIMx_CCR2 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR3
TIMx_CCR3 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR4
TIMx_CCR4 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_BDTR
TIMx_BDTR register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCMR3
TIMx_CCMR3 register is the DMA base
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address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR5
TIMx_CCR5 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_CCR6
TIMx_CCR6 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_OR1
TIMx_OR1 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_OR2
TIMx_OR2 register is the DMA base
address for DMA burst
LL_TIM_DMABURST_BASEADDR_OR3
TIMx_OR3 register is the DMA base
address for DMA burst
DMA Burst Length
LL_TIM_DMABURST_LENGTH_1TRANSFER
Transfer is done to 1 register starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_2TRANSFERS
Transfer is done to 2 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_3TRANSFERS
Transfer is done to 3 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_4TRANSFERS
Transfer is done to 4 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_5TRANSFERS
Transfer is done to 5 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_6TRANSFERS
Transfer is done to 6 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_7TRANSFERS
Transfer is done to 7 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_8TRANSFERS
Transfer is done to 1 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_9TRANSFERS
Transfer is done to 9 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_10TRANSFERS
Transfer is done to 10 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_11TRANSFERS
Transfer is done to 11 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_12TRANSFERS
Transfer is done to 12 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_13TRANSFERS
Transfer is done to 13 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_14TRANSFERS
Transfer is done to 14 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_15TRANSFERS
Transfer is done to 15 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_16TRANSFERS
Transfer is done to 16 registers starting
from the DMA burst base address
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LL_TIM_DMABURST_LENGTH_17TRANSFERS
Transfer is done to 17 registers starting
from the DMA burst base address
LL_TIM_DMABURST_LENGTH_18TRANSFERS
Transfer is done to 18 registers starting
from the DMA burst base address
Encoder Mode
LL_TIM_ENCODERMODE_X2_TI1
Encoder mode 1 - Counter counts up/down on
TI2FP2 edge depending on TI1FP1 level
LL_TIM_ENCODERMODE_X2_TI2
Encoder mode 2 - Counter counts up/down on
TI1FP1 edge depending on TI2FP2 level
LL_TIM_ENCODERMODE_X4_TI12
Encoder mode 3 - Counter counts up/down on both
TI1FP1 and TI2FP2 edges depending on the level
of the other input l
External Trigger Filter
LL_TIM_ETR_FILTER_FDIV1
No filter, sampling is done at fDTS
LL_TIM_ETR_FILTER_FDIV1_N2
fSAMPLING=fCK_INT, N=2
LL_TIM_ETR_FILTER_FDIV1_N4
fSAMPLING=fCK_INT, N=4
LL_TIM_ETR_FILTER_FDIV1_N8
fSAMPLING=fCK_INT, N=8
LL_TIM_ETR_FILTER_FDIV2_N6
fSAMPLING=fDTS/2, N=6
LL_TIM_ETR_FILTER_FDIV2_N8
fSAMPLING=fDTS/2, N=8
LL_TIM_ETR_FILTER_FDIV4_N6
fSAMPLING=fDTS/4, N=6
LL_TIM_ETR_FILTER_FDIV4_N8
fSAMPLING=fDTS/4, N=8
LL_TIM_ETR_FILTER_FDIV8_N6
fSAMPLING=fDTS/8, N=8
LL_TIM_ETR_FILTER_FDIV8_N8
fSAMPLING=fDTS/16, N=5
LL_TIM_ETR_FILTER_FDIV16_N5
fSAMPLING=fDTS/16, N=6
LL_TIM_ETR_FILTER_FDIV16_N6
fSAMPLING=fDTS/16, N=8
LL_TIM_ETR_FILTER_FDIV16_N8
fSAMPLING=fDTS/16, N=5
LL_TIM_ETR_FILTER_FDIV32_N5
fSAMPLING=fDTS/32, N=5
LL_TIM_ETR_FILTER_FDIV32_N6
fSAMPLING=fDTS/32, N=6
LL_TIM_ETR_FILTER_FDIV32_N8
fSAMPLING=fDTS/32, N=8
External Trigger Polarity
LL_TIM_ETR_POLARITY_NONINVERTED
ETR is non-inverted, active at high level or
rising edge
LL_TIM_ETR_POLARITY_INVERTED
ETR is inverted, active at low level or falling
edge
External Trigger Prescaler
LL_TIM_ETR_PRESCALER_DIV1
ETR prescaler OFF
LL_TIM_ETR_PRESCALER_DIV2
ETR frequency is divided by 2
LL_TIM_ETR_PRESCALER_DIV4
ETR frequency is divided by 4
LL_TIM_ETR_PRESCALER_DIV8
ETR frequency is divided by 8
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Get Flags Defines
LL_TIM_SR_UIF
Update interrupt flag
LL_TIM_SR_CC1IF
Capture/compare 1 interrupt flag
LL_TIM_SR_CC2IF
Capture/compare 2 interrupt flag
LL_TIM_SR_CC3IF
Capture/compare 3 interrupt flag
LL_TIM_SR_CC4IF
Capture/compare 4 interrupt flag
LL_TIM_SR_TIF
Trigger interrupt flag
LL_TIM_SR_CC1OF
Capture/Compare 1 overcapture flag
LL_TIM_SR_CC2OF
Capture/Compare 2 overcapture flag
LL_TIM_SR_CC3OF
Capture/Compare 3 overcapture flag
LL_TIM_SR_CC4OF
Capture/Compare 4 overcapture flag
Input Configuration Prescaler
LL_TIM_ICPSC_DIV1
No prescaler, capture is done each time an edge is detected on
the capture input
LL_TIM_ICPSC_DIV2
Capture is done once every 2 events
LL_TIM_ICPSC_DIV4
Capture is done once every 4 events
LL_TIM_ICPSC_DIV8
Capture is done once every 8 events
Input Configuration Filter
LL_TIM_IC_FILTER_FDIV1
No filter, sampling is done at fDTS
LL_TIM_IC_FILTER_FDIV1_N2
fSAMPLING=fCK_INT, N=2
LL_TIM_IC_FILTER_FDIV1_N4
fSAMPLING=fCK_INT, N=4
LL_TIM_IC_FILTER_FDIV1_N8
fSAMPLING=fCK_INT, N=8
LL_TIM_IC_FILTER_FDIV2_N6
fSAMPLING=fDTS/2, N=6
LL_TIM_IC_FILTER_FDIV2_N8
fSAMPLING=fDTS/2, N=8
LL_TIM_IC_FILTER_FDIV4_N6
fSAMPLING=fDTS/4, N=6
LL_TIM_IC_FILTER_FDIV4_N8
fSAMPLING=fDTS/4, N=8
LL_TIM_IC_FILTER_FDIV8_N6
fSAMPLING=fDTS/8, N=6
LL_TIM_IC_FILTER_FDIV8_N8
fSAMPLING=fDTS/8, N=8
LL_TIM_IC_FILTER_FDIV16_N5
fSAMPLING=fDTS/16, N=5
LL_TIM_IC_FILTER_FDIV16_N6
fSAMPLING=fDTS/16, N=6
LL_TIM_IC_FILTER_FDIV16_N8
fSAMPLING=fDTS/16, N=8
LL_TIM_IC_FILTER_FDIV32_N5
fSAMPLING=fDTS/32, N=5
LL_TIM_IC_FILTER_FDIV32_N6
fSAMPLING=fDTS/32, N=6
LL_TIM_IC_FILTER_FDIV32_N8
fSAMPLING=fDTS/32, N=8
Input Configuration Polarity
LL_TIM_IC_POLARITY_RISING
The circuit is sensitive to TIxFP1 rising edge,
TIxFP1 is not inverted
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LL_TIM_IC_POLARITY_FALLING
The circuit is sensitive to TIxFP1 falling edge,
TIxFP1 is inverted
LL_TIM_IC_POLARITY_BOTHEDGE
The circuit is sensitive to both TIxFP1 rising and
falling edges, TIxFP1 is not inverted
IT Defines
LL_TIM_DIER_UIE
Update interrupt enable
LL_TIM_DIER_CC1IE
Capture/compare 1 interrupt enable
LL_TIM_DIER_CC2IE
Capture/compare 2 interrupt enable
LL_TIM_DIER_CC3IE
Capture/compare 3 interrupt enable
LL_TIM_DIER_CC4IE
Capture/compare 4 interrupt enable
LL_TIM_DIER_TIE
Trigger interrupt enable
Output Configuration Mode
LL_TIM_OCMODE_FROZEN
The comparison between the output compare
register TIMx_CCRy and the counter
TIMx_CNT has no effect on the output channel
level
LL_TIM_OCMODE_ACTIVE
OCyREF is forced high on compare match
LL_TIM_OCMODE_INACTIVE
OCyREF is forced low on compare match
LL_TIM_OCMODE_TOGGLE
OCyREF toggles on compare match
LL_TIM_OCMODE_FORCED_INACTIVE
OCyREF is forced low
LL_TIM_OCMODE_FORCED_ACTIVE
OCyREF is forced high
LL_TIM_OCMODE_PWM1
In upcounting, channel y is active as long as
TIMx_CNT<TIMx_CCRy else inactive. In
downcounting, channel y is inactive as long as
TIMx_CNT>TIMx_CCRy else active.
LL_TIM_OCMODE_PWM2
In upcounting, channel y is inactive as long as
TIMx_CNT<TIMx_CCRy else active. In
downcounting, channel y is active as long as
TIMx_CNT>TIMx_CCRy else inactive
Output Configuration Polarity
LL_TIM_OCPOLARITY_HIGH
OCxactive high
LL_TIM_OCPOLARITY_LOW
OCxactive low
OCREF clear input selection
LL_TIM_OCREF_CLR_INT_NC
OCREF_CLR_INT is not connected
LL_TIM_OCREF_CLR_INT_ETR
OCREF_CLR_INT is connected to ETRF
Output Configuration State
LL_TIM_OCSTATE_DISABLE
OCx is not active
LL_TIM_OCSTATE_ENABLE
OCx signal is output on the corresponding output pin
One Pulse Mode
LL_TIM_ONEPULSEMODE_SINGLE
Counter is not stopped at update event
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LL_TIM_ONEPULSEMODE_REPETITIVE
Counter stops counting at the next update
event
Slave Mode
LL_TIM_SLAVEMODE_DISABLED
Slave mode disabled
LL_TIM_SLAVEMODE_RESET
Reset Mode - Rising edge of the selected trigger
input (TRGI) reinitializes the counter
LL_TIM_SLAVEMODE_GATED
Gated Mode - The counter clock is enabled when the
trigger input (TRGI) is high
LL_TIM_SLAVEMODE_TRIGGER
Trigger Mode - The counter starts at a rising edge of
the trigger TRGI
TIM21 External Trigger Remap
LL_TIM_TIM21_ETR_RMP_GPIO
TIM21_ETR is connected to Ored GPIO1
LL_TIM_TIM21_ETR_RMP_COMP2
TIM21_ETR is connected to COMP2_OUT
LL_TIM_TIM21_ETR_RMP_COMP1
TIM21_ETR is connected to COMP1_OUT
LL_TIM_TIM21_ETR_RMP_LSE
TIM21_ETR is connected to LSE
TIM21 External Input Ch1 Remap
LL_TIM_TIM21_TI1_RMP_GPIO
TIM21_TI1 is connected to Ored GPIO1
LL_TIM_TIM21_TI1_RMP_RTC_WK
TIM21_TI1 is connected to RTC_WAKEUP
LL_TIM_TIM21_TI1_RMP_HSE_RTC
TIM21_TI1 is connected to HSE_RTC
LL_TIM_TIM21_TI1_RMP_MSI
TIM21_TI1 is connected to MSI
LL_TIM_TIM21_TI1_RMP_LSE
TIM21_TI1 is connected to LSE
LL_TIM_TIM21_TI1_RMP_LSI
TIM21_TI1 is connected to LSI
LL_TIM_TIM21_TI1_RMP_COMP1
TIM21_TI1 is connected to COMP1_OUT
LL_TIM_TIM21_TI1_RMP_MCO
TIM21_TI1 is connected to MCO
TIM21 External Input Ch2 Remap
LL_TIM_TIM21_TI2_RMP_GPIO
TIM21_TI2 is connected to Ored GPIO1
LL_TIM_TIM21_TI2_RMP_COMP2
TIM21_TI2 is connected to COMP2_OUT
TIM22 External Trigger Remap
LL_TIM_TIM22_ETR_RMP_GPIO
TIM22_ETR is connected to GPIO
LL_TIM_TIM22_ETR_RMP_COMP2
TIM22_ETR is connected to COMP2_OUT
LL_TIM_TIM22_ETR_RMP_COMP1
TIM22_ETR is connected to COMP1_OUT
LL_TIM_TIM22_ETR_RMP_LSE
TIM22_ETR is connected to LSE
TIM22 External Input Ch1 Remap
LL_TIM_TIM22_TI1_RMP_GPIO1
TIM22_TI1 is connected to GPIO1
LL_TIM_TIM22_TI1_RMP_COMP2
TIM22_TI1 is connected to COMP2_OUT
LL_TIM_TIM22_TI1_RMP_COMP1
TIM22_TI1 is connected to COMP1_OUT
LL_TIM_TIM22_TI1_RMP_GPIO2
TIM22_TI1 is connected to GPIO2
TIM2 External Trigger Remap
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LL_TIM_TIM2_ETR_RMP_GPIO
TIM2_ETR is connected to Ored GPIO
LL_TIM_TIM2_ETR_RMP_HSI
TIM2_ETR is connected to HSI
LL_TIM_TIM2_ETR_RMP_HSI48
TIM2_ETR is connected to HSI48
LL_TIM_TIM2_ETR_RMP_LSE
TIM2_ETR is connected to LSE
LL_TIM_TIM2_ETR_RMP_COMP2
TIM2_ETR is connected to COMP2_OUT
LL_TIM_TIM2_ETR_RMP_COMP1
TIM2_ETR is connected to COMP1_OUT
TIM2 Timer Input Ch4 Remap
LL_TIM_TIM2_TI4_RMP_GPIO
TIM2 input capture 4 is connected to GPIO
LL_TIM_TIM2_TI4_RMP_COMP2
TIM2 input capture 4 is connected to COMP2_OUT
LL_TIM_TIM2_TI4_RMP_COMP1
TIM2 input capture 4 is connected to COMP1_OUT
TIM3 External Trigger Remap
LL_TIM_TIM3_ETR_RMP_GPIO
TIM3_ETR is connected to GPIO
LL_TIM_TIM3_ETR_RMP_HSI48DIV6
TIM3_ETR is connected to HSI48 divided by 6
TIM3 External Inputs Remap
LL_TIM_TIM3_TI_RMP_TI1_USB_SOF
TIM3_TI1 input is connected to USB_SOF
LL_TIM_TIM3_TI_RMP_TI1_GPIO
TIM3_TI1 input is connected to PE3, PA6,
PC6 or PB4
LL_TIM_TIM3_TI_RMP_TI2_GPIO_DEF
Mapping PB5 to TIM22_CH2
LL_TIM_TIM3_TI_RMP_TI2_GPIOB5_AF4
Mapping PB5 to TIM3_CH2
LL_TIM_TIM3_TI_RMP_TI4_GPIO_DEF
Mapping PC9 to USB_OE
LL_TIM_TIM3_TI_RMP_TI4_GPIOC9_AF2
Mapping PC9 to TIM3_CH4
Trigger Output
LL_TIM_TRGO_RESET
UG bit from the TIMx_EGR register is used as trigger output
LL_TIM_TRGO_ENABLE
Counter Enable signal (CNT_EN) is used as trigger output
LL_TIM_TRGO_UPDATE
Update event is used as trigger output
LL_TIM_TRGO_CC1IF
CC1 capture or a compare match is used as trigger output
LL_TIM_TRGO_OC1REF
OC1REF signal is used as trigger output
LL_TIM_TRGO_OC2REF
OC2REF signal is used as trigger output
LL_TIM_TRGO_OC3REF
OC3REF signal is used as trigger output
LL_TIM_TRGO_OC4REF
OC4REF signal is used as trigger output
Trigger Selection
LL_TIM_TS_ITR0
Internal Trigger 0 (ITR0) is used as trigger input
LL_TIM_TS_ITR1
Internal Trigger 1 (ITR1) is used as trigger input
LL_TIM_TS_ITR2
Internal Trigger 2 (ITR2) is used as trigger input
LL_TIM_TS_ITR3
Internal Trigger 3 (ITR3) is used as trigger input
LL_TIM_TS_TI1F_ED
TI1 Edge Detector (TI1F_ED) is used as trigger input
LL_TIM_TS_TI1FP1
Filtered Timer Input 1 (TI1FP1) is used as trigger input
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LL_TIM_TS_TI2FP2
Filtered Timer Input 2 (TI12P2) is used as trigger input
LL_TIM_TS_ETRF
Filtered external Trigger (ETRF) is used as trigger input
Update Source
LL_TIM_UPDATESOURCE_REGULAR
Counter overflow/underflow, Setting the UG bit
or Update generation through the slave mode
controller generates an update request
LL_TIM_UPDATESOURCE_COUNTER
Only counter overflow/underflow generates an
update request
Exported_Macros
__LL_TIM_CALC_PSC
Description:
HELPER macro calculating the prescaler value to
achieve the required counter clock frequency.
Parameters:
__TIMCLK__: timer input clock frequency (in Hz)
__CNTCLK__: counter clock frequency (in Hz)
Return value:
Prescaler: value (between Min_Data=0 and
Max_Data=65535)
Notes:
ex: __LL_TIM_CALC_PSC (80000000, 1000000);
__LL_TIM_CALC_ARR
Description:
HELPER macro calculating the auto-reload value
to achieve the required output signal frequency.
Parameters:
__TIMCLK__: timer input clock frequency (in Hz)
__PSC__: prescaler
__FREQ__: output signal frequency (in Hz)
Return value:
Auto-reload: value (between Min_Data=0 and
Max_Data=65535)
Notes:
ex: __LL_TIM_CALC_ARR (1000000,
LL_TIM_GetPrescaler (), 10000);
__LL_TIM_CALC_DELAY
Description:
HELPER macro calculating the compare value
required to achieve the required timer output
compare active/inactive delay.
Parameters:
__TIMCLK__: timer input clock frequency (in Hz)
__PSC__: prescaler
__DELAY__: timer output compare active/inactive
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delay (in us)
Return value:
Compare: value (between Min_Data=0 and
Max_Data=65535)
Notes:
ex: __LL_TIM_CALC_DELAY (1000000,
LL_TIM_GetPrescaler (), 10);
__LL_TIM_CALC_PULSE
Description:
HELPER macro calculating the auto-reload value
to achieve the required pulse duration (when the
timer operates in one pulse mode).
Parameters:
__TIMCLK__: timer input clock frequency (in Hz)
__PSC__: prescaler
__DELAY__: timer output compare active/inactive
delay (in us)
__PULSE__: pulse duration (in us)
Return value:
Auto-reload: value (between Min_Data=0 and
Max_Data=65535)
Notes:
ex: __LL_TIM_CALC_PULSE (1000000,
LL_TIM_GetPrescaler (), 10, 20);
__LL_TIM_GET_ICPSC_RATIO
Description:
HELPER macro retrieving the ratio of the input
capture prescaler.
Parameters:
__ICPSC__: This parameter can be one of the
following values:
LL_TIM_ICPSC_DIV1
LL_TIM_ICPSC_DIV2
LL_TIM_ICPSC_DIV4
LL_TIM_ICPSC_DIV8
Return value:
Input: capture prescaler ratio (1, 2, 4 or 8)
Notes:
ex: __LL_TIM_GET_ICPSC_RATIO
(LL_TIM_IC_GetPrescaler ());
Common Write and read registers Macros
LL_TIM_WriteReg
Description:
Write a value in TIM register.
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Parameters:
__INSTANCE__: TIM Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_TIM_ReadReg
Description:
Read a value in TIM register.
Parameters:
__INSTANCE__: TIM Instance
__REG__: Register to be read
Return value:
Register: value
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75 LL USART Generic Driver
75.1 USART Firmware driver registers structures
75.1.1 LL_USART_InitTypeDef
Data Fields
uint32_t BaudRate
uint32_t DataWidth
uint32_t StopBits
uint32_t Parity
uint32_t TransferDirection
uint32_t HardwareFlowControl
uint32_t OverSampling
Field Documentation
uint32_t LL_USART_InitTypeDef::BaudRate
This field defines expected Usart communication baud rate.This feature can be
modified afterwards using unitary function LL_USART_SetBaudRate().
uint32_t LL_USART_InitTypeDef::DataWidth
Specifies the number of data bits transmitted or received in a frame. This parameter
can be a value of USART_LL_EC_DATAWIDTH.This feature can be modified
afterwards using unitary function LL_USART_SetDataWidth().
uint32_t LL_USART_InitTypeDef::StopBits
Specifies the number of stop bits transmitted. This parameter can be a value of
USART_LL_EC_STOPBITS.This feature can be modified afterwards using unitary
function LL_USART_SetStopBitsLength().
uint32_t LL_USART_InitTypeDef::Parity
Specifies the parity mode. This parameter can be a value of
USART_LL_EC_PARITY.This feature can be modified afterwards using unitary
function LL_USART_SetParity().
uint32_t LL_USART_InitTypeDef::TransferDirection
Specifies whether the Receive and/or Transmit mode is enabled or disabled. This
parameter can be a value of USART_LL_EC_DIRECTION.This feature can be
modified afterwards using unitary function LL_USART_SetTransferDirection().
uint32_t LL_USART_InitTypeDef::HardwareFlowControl
Specifies whether the hardware flow control mode is enabled or disabled. This
parameter can be a value of USART_LL_EC_HWCONTROL.This feature can be
modified afterwards using unitary function LL_USART_SetHWFlowCtrl().
uint32_t LL_USART_InitTypeDef::OverSampling
Specifies whether USART oversampling mode is 16 or 8. This parameter can be a
value of USART_LL_EC_OVERSAMPLING.This feature can be modified afterwards
using unitary function LL_USART_SetOverSampling().
75.1.2 LL_USART_ClockInitTypeDef
Data Fields
uint32_t ClockOutput
uint32_t ClockPolarity
uint32_t ClockPhase
uint32_t LastBitClockPulse
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Field Documentation
uint32_t LL_USART_ClockInitTypeDef::ClockOutput
Specifies whether the USART clock is enabled or disabled. This parameter can be a
value of USART_LL_EC_CLOCK.USART HW configuration can be modified
afterwards using unitary functions LL_USART_EnableSCLKOutput() or
LL_USART_DisableSCLKOutput(). For more details, refer to description of this
function.
uint32_t LL_USART_ClockInitTypeDef::ClockPolarity
Specifies the steady state of the serial clock. This parameter can be a value of
USART_LL_EC_POLARITY.USART HW configuration can be modified afterwards
using unitary functions LL_USART_SetClockPolarity(). For more details, refer to
description of this function.
uint32_t LL_USART_ClockInitTypeDef::ClockPhase
Specifies the clock transition on which the bit capture is made. This parameter can be
a value of USART_LL_EC_PHASE.USART HW configuration can be modified
afterwards using unitary functions LL_USART_SetClockPhase(). For more details,
refer to description of this function.
uint32_t LL_USART_ClockInitTypeDef::LastBitClockPulse
Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB)
has to be output on the SCLK pin in synchronous mode. This parameter can be a
value of USART_LL_EC_LASTCLKPULSE.USART HW configuration can be
modified afterwards using unitary functions LL_USART_SetLastClkPulseOutput().
For more details, refer to description of this function.
75.2 USART Firmware driver API description
75.2.1 Detailed description of functions
LL_USART_Enable
Function name
__STATIC_INLINE void LL_USART_Enable (USART_TypeDef *
USARTx)
Function description
USART Enable.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 UE LL_USART_Enable
LL_USART_Disable
Function name
__STATIC_INLINE void LL_USART_Disable (USART_TypeDef
* USARTx)
Function description
USART Disable (all USART prescalers and outputs are disabled)
Parameters
USARTx: USART Instance
Return values
None
Notes
When USART is disabled, USART prescalers and outputs are
stopped immediately, and current operations are discarded.
The configuration of the USART is kept, but all the status
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flags, in the USARTx_ISR are set to their default values.
Reference Manual to
LL API cross
reference:
CR1 UE LL_USART_Disable
LL_USART_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabled
(USART_TypeDef * USARTx)
Function description
Indicate if USART is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 UE LL_USART_IsEnabled
LL_USART_EnableInStopMode
Function name
__STATIC_INLINE void LL_USART_EnableInStopMode
(USART_TypeDef * USARTx)
Function description
USART enabled in STOP Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
When this function is enabled, USART is able to wake up the
MCU from Stop mode, provided that USART clock selection is
HSI or LSE in RCC.
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 UESM LL_USART_EnableInStopMode
LL_USART_DisableInStopMode
Function name
__STATIC_INLINE void LL_USART_DisableInStopMode
(USART_TypeDef * USARTx)
Function description
USART disabled in STOP Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
When this function is disabled, USART is not able to wake up
the MCU from Stop mode
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
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Reference Manual to
LL API cross
reference:
CR1 UESM LL_USART_DisableInStopMode
LL_USART_IsEnabledInStopMode
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledInStopMode
(USART_TypeDef * USARTx)
Function description
Indicate if USART is enabled in STOP Mode (able to wake up
MCU from Stop mode or not)
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 UESM LL_USART_IsEnabledInStopMode
LL_USART_EnableDirectionRx
Function name
__STATIC_INLINE void LL_USART_EnableDirectionRx
(USART_TypeDef * USARTx)
Function description
Receiver Enable (Receiver is enabled and begins searching for a
start bit)
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_USART_EnableDirectionRx
LL_USART_DisableDirectionRx
Function name
__STATIC_INLINE void LL_USART_DisableDirectionRx
(USART_TypeDef * USARTx)
Function description
Receiver Disable.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_USART_DisableDirectionRx
LL_USART_EnableDirectionTx
Function name
__STATIC_INLINE void LL_USART_EnableDirectionTx
(USART_TypeDef * USARTx)
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Function description
Transmitter Enable.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TE LL_USART_EnableDirectionTx
LL_USART_DisableDirectionTx
Function name
__STATIC_INLINE void LL_USART_DisableDirectionTx
(USART_TypeDef * USARTx)
Function description
Transmitter Disable.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TE LL_USART_DisableDirectionTx
LL_USART_SetTransferDirection
Function name
__STATIC_INLINE void LL_USART_SetTransferDirection
(USART_TypeDef * USARTx, uint32_t TransferDirection)
Function description
Configure simultaneously enabled/disabled states of Transmitter
and Receiver.
Parameters
USARTx: USART Instance
TransferDirection: This parameter can be one of the
following values:
LL_USART_DIRECTION_NONE
LL_USART_DIRECTION_RX
LL_USART_DIRECTION_TX
LL_USART_DIRECTION_TX_RX
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RE LL_USART_SetTransferDirection
CR1 TE LL_USART_SetTransferDirection
LL_USART_GetTransferDirection
Function name
__STATIC_INLINE uint32_t LL_USART_GetTransferDirection
(USART_TypeDef * USARTx)
Function description
Return enabled/disabled states of Transmitter and Receiver.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_DIRECTION_NONE
LL_USART_DIRECTION_RX
LL_USART_DIRECTION_TX
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LL_USART_DIRECTION_TX_RX
Reference Manual to
LL API cross
reference:
CR1 RE LL_USART_GetTransferDirection
CR1 TE LL_USART_GetTransferDirection
LL_USART_SetParity
Function name
__STATIC_INLINE void LL_USART_SetParity
(USART_TypeDef * USARTx, uint32_t Parity)
Function description
Configure Parity (enabled/disabled and parity mode if enabled).
Parameters
USARTx: USART Instance
Parity: This parameter can be one of the following values:
LL_USART_PARITY_NONE
LL_USART_PARITY_EVEN
LL_USART_PARITY_ODD
Return values
None
Notes
This function selects if hardware parity control (generation
and detection) is enabled or disabled. When the parity control
is enabled (Odd or Even), computed parity bit is inserted at
the MSB position (9th or 8th bit depending on data width) and
parity is checked on the received data.
Reference Manual to
LL API cross
reference:
CR1 PS LL_USART_SetParity
CR1 PCE LL_USART_SetParity
LL_USART_GetParity
Function name
__STATIC_INLINE uint32_t LL_USART_GetParity
(USART_TypeDef * USARTx)
Function description
Return Parity configuration (enabled/disabled and parity mode if
enabled)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_PARITY_NONE
LL_USART_PARITY_EVEN
LL_USART_PARITY_ODD
Reference Manual to
LL API cross
reference:
CR1 PS LL_USART_GetParity
CR1 PCE LL_USART_GetParity
LL_USART_SetWakeUpMethod
Function name
__STATIC_INLINE void LL_USART_SetWakeUpMethod
(USART_TypeDef * USARTx, uint32_t Method)
Function description
Set Receiver Wake Up method from Mute mode.
Parameters
USARTx: USART Instance
Method: This parameter can be one of the following values:
LL_USART_WAKEUP_IDLELINE
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LL_USART_WAKEUP_ADDRESSMARK
Return values
None
Reference Manual to
LL API cross
reference:
CR1 WAKE LL_USART_SetWakeUpMethod
LL_USART_GetWakeUpMethod
Function name
__STATIC_INLINE uint32_t LL_USART_GetWakeUpMethod
(USART_TypeDef * USARTx)
Function description
Return Receiver Wake Up method from Mute mode.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_WAKEUP_IDLELINE
LL_USART_WAKEUP_ADDRESSMARK
Reference Manual to
LL API cross
reference:
CR1 WAKE LL_USART_GetWakeUpMethod
LL_USART_SetDataWidth
Function name
__STATIC_INLINE void LL_USART_SetDataWidth
(USART_TypeDef * USARTx, uint32_t DataWidth)
Function description
Set Word length (i.e.
Parameters
USARTx: USART Instance
DataWidth: This parameter can be one of the following
values:
LL_USART_DATAWIDTH_7B
LL_USART_DATAWIDTH_8B
LL_USART_DATAWIDTH_9B
Return values
None
Reference Manual to
LL API cross
reference:
CR1 M0 LL_USART_SetDataWidth
CR1 M1 LL_USART_SetDataWidth
LL_USART_GetDataWidth
Function name
__STATIC_INLINE uint32_t LL_USART_GetDataWidth
(USART_TypeDef * USARTx)
Function description
Return Word length (i.e.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_DATAWIDTH_7B
LL_USART_DATAWIDTH_8B
LL_USART_DATAWIDTH_9B
Reference Manual to
LL API cross
CR1 M0 LL_USART_GetDataWidth
LL USART Generic Driver
UM1749
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reference:
CR1 M1 LL_USART_GetDataWidth
LL_USART_EnableMuteMode
Function name
__STATIC_INLINE void LL_USART_EnableMuteMode
(USART_TypeDef * USARTx)
Function description
Allow switch between Mute Mode and Active mode.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 MME LL_USART_EnableMuteMode
LL_USART_DisableMuteMode
Function name
__STATIC_INLINE void LL_USART_DisableMuteMode
(USART_TypeDef * USARTx)
Function description
Prevent Mute Mode use.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 MME LL_USART_DisableMuteMode
LL_USART_IsEnabledMuteMode
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledMuteMode
(USART_TypeDef * USARTx)
Function description
Indicate if switch between Mute Mode and Active mode is allowed.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 MME LL_USART_IsEnabledMuteMode
LL_USART_SetOverSampling
Function name
__STATIC_INLINE void LL_USART_SetOverSampling
(USART_TypeDef * USARTx, uint32_t OverSampling)
Function description
Set Oversampling to 8-bit or 16-bit mode.
Parameters
USARTx: USART Instance
OverSampling: This parameter can be one of the following
values:
LL_USART_OVERSAMPLING_16
LL_USART_OVERSAMPLING_8
Return values
None
UM1749
LL USART Generic Driver
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Reference Manual to
LL API cross
reference:
CR1 OVER8 LL_USART_SetOverSampling
LL_USART_GetOverSampling
Function name
__STATIC_INLINE uint32_t LL_USART_GetOverSampling
(USART_TypeDef * USARTx)
Function description
Return Oversampling mode.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_OVERSAMPLING_16
LL_USART_OVERSAMPLING_8
Reference Manual to
LL API cross
reference:
CR1 OVER8 LL_USART_GetOverSampling
LL_USART_SetLastClkPulseOutput
Function name
__STATIC_INLINE void LL_USART_SetLastClkPulseOutput
(USART_TypeDef * USARTx, uint32_t LastBitClockPulse)
Function description
Configure if Clock pulse of the last data bit is output to the SCLK
pin or not.
Parameters
USARTx: USART Instance
LastBitClockPulse: This parameter can be one of the
following values:
LL_USART_LASTCLKPULSE_NO_OUTPUT
LL_USART_LASTCLKPULSE_OUTPUT
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 LBCL LL_USART_SetLastClkPulseOutput
LL_USART_GetLastClkPulseOutput
Function name
__STATIC_INLINE uint32_t
LL_USART_GetLastClkPulseOutput (USART_TypeDef *
USARTx)
Function description
Retrieve Clock pulse of the last data bit output configuration (Last
bit Clock pulse output to the SCLK pin or not)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_LASTCLKPULSE_NO_OUTPUT
LL_USART_LASTCLKPULSE_OUTPUT
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Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 LBCL LL_USART_GetLastClkPulseOutput
LL_USART_SetClockPhase
Function name
__STATIC_INLINE void LL_USART_SetClockPhase
(USART_TypeDef * USARTx, uint32_t ClockPhase)
Function description
Select the phase of the clock output on the SCLK pin in
synchronous mode.
Parameters
USARTx: USART Instance
ClockPhase: This parameter can be one of the following
values:
LL_USART_PHASE_1EDGE
LL_USART_PHASE_2EDGE
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CPHA LL_USART_SetClockPhase
LL_USART_GetClockPhase
Function name
__STATIC_INLINE uint32_t LL_USART_GetClockPhase
(USART_TypeDef * USARTx)
Function description
Return phase of the clock output on the SCLK pin in synchronous
mode.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_PHASE_1EDGE
LL_USART_PHASE_2EDGE
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CPHA LL_USART_GetClockPhase
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LL_USART_SetClockPolarity
Function name
__STATIC_INLINE void LL_USART_SetClockPolarity
(USART_TypeDef * USARTx, uint32_t ClockPolarity)
Function description
Select the polarity of the clock output on the SCLK pin in
synchronous mode.
Parameters
USARTx: USART Instance
ClockPolarity: This parameter can be one of the following
values:
LL_USART_POLARITY_LOW
LL_USART_POLARITY_HIGH
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CPOL LL_USART_SetClockPolarity
LL_USART_GetClockPolarity
Function name
__STATIC_INLINE uint32_t LL_USART_GetClockPolarity
(USART_TypeDef * USARTx)
Function description
Return polarity of the clock output on the SCLK pin in synchronous
mode.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_POLARITY_LOW
LL_USART_POLARITY_HIGH
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CPOL LL_USART_GetClockPolarity
LL_USART_ConfigClock
Function name
__STATIC_INLINE void LL_USART_ConfigClock
(USART_TypeDef * USARTx, uint32_t Phase, uint32_t Polarity,
uint32_t LBCPOutput)
Function description
Configure Clock signal format (Phase Polarity and choice about
output of last bit clock pulse)
Parameters
USARTx: USART Instance
Phase: This parameter can be one of the following values:
LL_USART_PHASE_1EDGE
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LL_USART_PHASE_2EDGE
Polarity: This parameter can be one of the following values:
LL_USART_POLARITY_LOW
LL_USART_POLARITY_HIGH
LBCPOutput: This parameter can be one of the following
values:
LL_USART_LASTCLKPULSE_NO_OUTPUT
LL_USART_LASTCLKPULSE_OUTPUT
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Call of this function is equivalent to following function call
sequence : Clock Phase configuration using
LL_USART_SetClockPhase() functionClock Polarity
configuration using LL_USART_SetClockPolarity()
functionOutput of Last bit Clock pulse configuration using
LL_USART_SetLastClkPulseOutput() function
Reference Manual to
LL API cross
reference:
CR2 CPHA LL_USART_ConfigClock
CR2 CPOL LL_USART_ConfigClock
CR2 LBCL LL_USART_ConfigClock
LL_USART_EnableSCLKOutput
Function name
__STATIC_INLINE void LL_USART_EnableSCLKOutput
(USART_TypeDef * USARTx)
Function description
Enable Clock output on SCLK pin.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CLKEN LL_USART_EnableSCLKOutput
LL_USART_DisableSCLKOutput
Function name
__STATIC_INLINE void LL_USART_DisableSCLKOutput
(USART_TypeDef * USARTx)
Function description
Disable Clock output on SCLK pin.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
CR2 CLKEN LL_USART_DisableSCLKOutput
UM1749
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LL API cross
reference:
LL_USART_IsEnabledSCLKOutput
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledSCLKOutput
(USART_TypeDef * USARTx)
Function description
Indicate if Clock output on SCLK pin is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR2 CLKEN LL_USART_IsEnabledSCLKOutput
LL_USART_SetStopBitsLength
Function name
__STATIC_INLINE void LL_USART_SetStopBitsLength
(USART_TypeDef * USARTx, uint32_t StopBits)
Function description
Set the length of the stop bits.
Parameters
USARTx: USART Instance
StopBits: This parameter can be one of the following values:
LL_USART_STOPBITS_0_5
LL_USART_STOPBITS_1
LL_USART_STOPBITS_1_5
LL_USART_STOPBITS_2
Return values
None
Reference Manual to
LL API cross
reference:
CR2 STOP LL_USART_SetStopBitsLength
LL_USART_GetStopBitsLength
Function name
__STATIC_INLINE uint32_t LL_USART_GetStopBitsLength
(USART_TypeDef * USARTx)
Function description
Retrieve the length of the stop bits.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_STOPBITS_0_5
LL_USART_STOPBITS_1
LL_USART_STOPBITS_1_5
LL_USART_STOPBITS_2
Reference Manual to
LL API cross
reference:
CR2 STOP LL_USART_GetStopBitsLength
LL USART Generic Driver
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LL_USART_ConfigCharacter
Function name
__STATIC_INLINE void LL_USART_ConfigCharacter
(USART_TypeDef * USARTx, uint32_t DataWidth, uint32_t
Parity, uint32_t StopBits)
Function description
Configure Character frame format (Datawidth, Parity control, Stop
Bits)
Parameters
USARTx: USART Instance
DataWidth: This parameter can be one of the following
values:
LL_USART_DATAWIDTH_7B
LL_USART_DATAWIDTH_8B
LL_USART_DATAWIDTH_9B
Parity: This parameter can be one of the following values:
LL_USART_PARITY_NONE
LL_USART_PARITY_EVEN
LL_USART_PARITY_ODD
StopBits: This parameter can be one of the following values:
LL_USART_STOPBITS_0_5
LL_USART_STOPBITS_1
LL_USART_STOPBITS_1_5
LL_USART_STOPBITS_2
Return values
None
Notes
Call of this function is equivalent to following function call
sequence : Data Width configuration using
LL_USART_SetDataWidth() functionParity Control and mode
configuration using LL_USART_SetParity() functionStop bits
configuration using LL_USART_SetStopBitsLength() function
Reference Manual to
LL API cross
reference:
CR1 PS LL_USART_ConfigCharacter
CR1 PCE LL_USART_ConfigCharacter
CR1 M0 LL_USART_ConfigCharacter
CR1 M1 LL_USART_ConfigCharacter
CR2 STOP LL_USART_ConfigCharacter
LL_USART_SetTXRXSwap
Function name
__STATIC_INLINE void LL_USART_SetTXRXSwap
(USART_TypeDef * USARTx, uint32_t SwapConfig)
Function description
Configure TX/RX pins swapping setting.
Parameters
USARTx: USART Instance
SwapConfig: This parameter can be one of the following
values:
LL_USART_TXRX_STANDARD
LL_USART_TXRX_SWAPPED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 SWAP LL_USART_SetTXRXSwap
UM1749
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LL_USART_GetTXRXSwap
Function name
__STATIC_INLINE uint32_t LL_USART_GetTXRXSwap
(USART_TypeDef * USARTx)
Function description
Retrieve TX/RX pins swapping configuration.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_TXRX_STANDARD
LL_USART_TXRX_SWAPPED
Reference Manual to
LL API cross
reference:
CR2 SWAP LL_USART_GetTXRXSwap
LL_USART_SetRXPinLevel
Function name
__STATIC_INLINE void LL_USART_SetRXPinLevel
(USART_TypeDef * USARTx, uint32_t PinInvMethod)
Function description
Configure RX pin active level logic.
Parameters
USARTx: USART Instance
PinInvMethod: This parameter can be one of the following
values:
LL_USART_RXPIN_LEVEL_STANDARD
LL_USART_RXPIN_LEVEL_INVERTED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RXINV LL_USART_SetRXPinLevel
LL_USART_GetRXPinLevel
Function name
__STATIC_INLINE uint32_t LL_USART_GetRXPinLevel
(USART_TypeDef * USARTx)
Function description
Retrieve RX pin active level logic configuration.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_RXPIN_LEVEL_STANDARD
LL_USART_RXPIN_LEVEL_INVERTED
Reference Manual to
LL API cross
reference:
CR2 RXINV LL_USART_GetRXPinLevel
LL_USART_SetTXPinLevel
Function name
__STATIC_INLINE void LL_USART_SetTXPinLevel
(USART_TypeDef * USARTx, uint32_t PinInvMethod)
Function description
Configure TX pin active level logic.
Parameters
USARTx: USART Instance
LL USART Generic Driver
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PinInvMethod: This parameter can be one of the following
values:
LL_USART_TXPIN_LEVEL_STANDARD
LL_USART_TXPIN_LEVEL_INVERTED
Return values
None
Reference Manual to
LL API cross
reference:
CR2 TXINV LL_USART_SetTXPinLevel
LL_USART_GetTXPinLevel
Function name
__STATIC_INLINE uint32_t LL_USART_GetTXPinLevel
(USART_TypeDef * USARTx)
Function description
Retrieve TX pin active level logic configuration.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_TXPIN_LEVEL_STANDARD
LL_USART_TXPIN_LEVEL_INVERTED
Reference Manual to
LL API cross
reference:
CR2 TXINV LL_USART_GetTXPinLevel
LL_USART_SetBinaryDataLogic
Function name
__STATIC_INLINE void LL_USART_SetBinaryDataLogic
(USART_TypeDef * USARTx, uint32_t DataLogic)
Function description
Configure Binary data logic.
Parameters
USARTx: USART Instance
DataLogic: This parameter can be one of the following
values:
LL_USART_BINARY_LOGIC_POSITIVE
LL_USART_BINARY_LOGIC_NEGATIVE
Return values
None
Notes
Allow to define how Logical data from the data register are
send/received : either in positive/direct logic (1=H, 0=L) or in
negative/inverse logic (1=L, 0=H)
Reference Manual to
LL API cross
reference:
CR2 DATAINV LL_USART_SetBinaryDataLogic
LL_USART_GetBinaryDataLogic
Function name
__STATIC_INLINE uint32_t LL_USART_GetBinaryDataLogic
(USART_TypeDef * USARTx)
Function description
Retrieve Binary data configuration.
Parameters
USARTx: USART Instance
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Return values
Returned: value can be one of the following values:
LL_USART_BINARY_LOGIC_POSITIVE
LL_USART_BINARY_LOGIC_NEGATIVE
Reference Manual to
LL API cross
reference:
CR2 DATAINV LL_USART_GetBinaryDataLogic
LL_USART_SetTransferBitOrder
Function name
__STATIC_INLINE void LL_USART_SetTransferBitOrder
(USART_TypeDef * USARTx, uint32_t BitOrder)
Function description
Configure transfer bit order (either Less or Most Significant Bit
First)
Parameters
USARTx: USART Instance
BitOrder: This parameter can be one of the following values:
LL_USART_BITORDER_LSBFIRST
LL_USART_BITORDER_MSBFIRST
Return values
None
Notes
MSB First means data is transmitted/received with the MSB
first, following the start bit. LSB First means data is
transmitted/received with data bit 0 first, following the start bit.
Reference Manual to
LL API cross
reference:
CR2 MSBFIRST LL_USART_SetTransferBitOrder
LL_USART_GetTransferBitOrder
Function name
__STATIC_INLINE uint32_t LL_USART_GetTransferBitOrder
(USART_TypeDef * USARTx)
Function description
Return transfer bit order (either Less or Most Significant Bit First)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_BITORDER_LSBFIRST
LL_USART_BITORDER_MSBFIRST
Notes
MSB First means data is transmitted/received with the MSB
first, following the start bit. LSB First means data is
transmitted/received with data bit 0 first, following the start bit.
Reference Manual to
LL API cross
reference:
CR2 MSBFIRST LL_USART_GetTransferBitOrder
LL_USART_EnableAutoBaudRate
Function name
__STATIC_INLINE void LL_USART_EnableAutoBaudRate
(USART_TypeDef * USARTx)
Function description
Enable Auto Baud-Rate Detection.
Parameters
USARTx: USART Instance
LL USART Generic Driver
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Return values
None
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
CR2 ABREN LL_USART_EnableAutoBaudRate
LL_USART_DisableAutoBaudRate
Function name
__STATIC_INLINE void LL_USART_DisableAutoBaudRate
(USART_TypeDef * USARTx)
Function description
Disable Auto Baud-Rate Detection.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
CR2 ABREN LL_USART_DisableAutoBaudRate
LL_USART_IsEnabledAutoBaud
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledAutoBaud
(USART_TypeDef * USARTx)
Function description
Indicate if Auto Baud-Rate Detection mechanism is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
CR2 ABREN LL_USART_IsEnabledAutoBaud
LL_USART_SetAutoBaudRateMode
Function name
__STATIC_INLINE void LL_USART_SetAutoBaudRateMode
(USART_TypeDef * USARTx, uint32_t AutoBaudRateMode)
Function
description
Set Auto Baud-Rate mode bits.
Parameters
USARTx: USART Instance
AutoBaudRateMode: This parameter can be one of the following
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values:
LL_USART_AUTOBAUD_DETECT_ON_STARTBIT
LL_USART_AUTOBAUD_DETECT_ON_FALLINGEDGE
LL_USART_AUTOBAUD_DETECT_ON_7F_FRAME
LL_USART_AUTOBAUD_DETECT_ON_55_FRAME
Return values
None
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USART
x) can be used to check whether or not Auto Baud Rate detection
feature is supported by the USARTx instance.
Reference
Manual to LL
API cross
reference:
CR2 ABRMODE LL_USART_SetAutoBaudRateMode
LL_USART_GetAutoBaudRateMode
Function name
__STATIC_INLINE uint32_t LL_USART_GetAutoBaudRateMode
(USART_TypeDef * USARTx)
Function
description
Return Auto Baud-Rate mode.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_AUTOBAUD_DETECT_ON_STARTBIT
LL_USART_AUTOBAUD_DETECT_ON_FALLINGEDGE
LL_USART_AUTOBAUD_DETECT_ON_7F_FRAME
LL_USART_AUTOBAUD_DETECT_ON_55_FRAME
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USART
x) can be used to check whether or not Auto Baud Rate detection
feature is supported by the USARTx instance.
Reference
Manual to LL
API cross
reference:
CR2 ABRMODE LL_USART_GetAutoBaudRateMode
LL_USART_EnableRxTimeout
Function name
__STATIC_INLINE void LL_USART_EnableRxTimeout
(USART_TypeDef * USARTx)
Function description
Enable Receiver Timeout.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RTOEN LL_USART_EnableRxTimeout
LL USART Generic Driver
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LL_USART_DisableRxTimeout
Function name
__STATIC_INLINE void LL_USART_DisableRxTimeout
(USART_TypeDef * USARTx)
Function description
Disable Receiver Timeout.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR2 RTOEN LL_USART_DisableRxTimeout
LL_USART_IsEnabledRxTimeout
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledRxTimeout
(USART_TypeDef * USARTx)
Function description
Indicate if Receiver Timeout feature is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR2 RTOEN LL_USART_IsEnabledRxTimeout
LL_USART_ConfigNodeAddress
Function name
__STATIC_INLINE void LL_USART_ConfigNodeAddress
(USART_TypeDef * USARTx, uint32_t AddressLen, uint32_t
NodeAddress)
Function description
Set Address of the USART node.
Parameters
USARTx: USART Instance
AddressLen: This parameter can be one of the following
values:
LL_USART_ADDRESS_DETECT_4B
LL_USART_ADDRESS_DETECT_7B
NodeAddress: 4 or 7 bit Address of the USART node.
Return values
None
Notes
This is used in multiprocessor communication during Mute
mode or Stop mode, for wake up with address mark
detection.
4bits address node is used when 4-bit Address Detection is
selected in ADDM7. (b7-b4 should be set to 0) 8bits address
node is used when 7-bit Address Detection is selected in
ADDM7. (This is used in multiprocessor communication
during Mute mode or Stop mode, for wake up with 7-bit
address mark detection. The MSB of the character sent by
the transmitter should be equal to 1. It may also be used for
character detection during normal reception, Mute mode
inactive (for example, end of block detection in ModBus
protocol). In this case, the whole received character (8-bit) is
compared to the ADD[7:0] value and CMF flag is set on
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match)
Reference Manual to
LL API cross
reference:
CR2 ADD LL_USART_ConfigNodeAddress
CR2 ADDM7 LL_USART_ConfigNodeAddress
LL_USART_GetNodeAddress
Function name
__STATIC_INLINE uint32_t LL_USART_GetNodeAddress
(USART_TypeDef * USARTx)
Function description
Return 8 bit Address of the USART node as set in ADD field of
CR2.
Parameters
USARTx: USART Instance
Return values
Address: of the USART node (Value between Min_Data=0
and Max_Data=255)
Notes
If 4-bit Address Detection is selected in ADDM7, only 4bits
(b3-b0) of returned value are relevant (b31-b4 are not
relevant) If 7-bit Address Detection is selected in ADDM7,
only 8bits (b7-b0) of returned value are relevant (b31-b8 are
not relevant)
Reference Manual to
LL API cross
reference:
CR2 ADD LL_USART_GetNodeAddress
LL_USART_GetNodeAddressLen
Function name
__STATIC_INLINE uint32_t LL_USART_GetNodeAddressLen
(USART_TypeDef * USARTx)
Function description
Return Length of Node Address used in Address Detection mode
(7-bit or 4-bit)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_ADDRESS_DETECT_4B
LL_USART_ADDRESS_DETECT_7B
Reference Manual to
LL API cross
reference:
CR2 ADDM7 LL_USART_GetNodeAddressLen
LL_USART_EnableRTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_USART_EnableRTSHWFlowCtrl
(USART_TypeDef * USARTx)
Function description
Enable RTS HW Flow Control.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
LL USART Generic Driver
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Reference Manual to
LL API cross
reference:
CR3 RTSE LL_USART_EnableRTSHWFlowCtrl
LL_USART_DisableRTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_USART_DisableRTSHWFlowCtrl
(USART_TypeDef * USARTx)
Function description
Disable RTS HW Flow Control.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_USART_DisableRTSHWFlowCtrl
LL_USART_EnableCTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_USART_EnableCTSHWFlowCtrl
(USART_TypeDef * USARTx)
Function description
Enable CTS HW Flow Control.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 CTSE LL_USART_EnableCTSHWFlowCtrl
LL_USART_DisableCTSHWFlowCtrl
Function name
__STATIC_INLINE void LL_USART_DisableCTSHWFlowCtrl
(USART_TypeDef * USARTx)
Function description
Disable CTS HW Flow Control.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 CTSE LL_USART_DisableCTSHWFlowCtrl
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LL_USART_SetHWFlowCtrl
Function name
__STATIC_INLINE void LL_USART_SetHWFlowCtrl
(USART_TypeDef * USARTx, uint32_t HardwareFlowControl)
Function description
Configure HW Flow Control mode (both CTS and RTS)
Parameters
USARTx: USART Instance
HardwareFlowControl: This parameter can be one of the
following values:
LL_USART_HWCONTROL_NONE
LL_USART_HWCONTROL_RTS
LL_USART_HWCONTROL_CTS
LL_USART_HWCONTROL_RTS_CTS
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_USART_SetHWFlowCtrl
CR3 CTSE LL_USART_SetHWFlowCtrl
LL_USART_GetHWFlowCtrl
Function name
__STATIC_INLINE uint32_t LL_USART_GetHWFlowCtrl
(USART_TypeDef * USARTx)
Function description
Return HW Flow Control configuration (both CTS and RTS)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_HWCONTROL_NONE
LL_USART_HWCONTROL_RTS
LL_USART_HWCONTROL_CTS
LL_USART_HWCONTROL_RTS_CTS
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 RTSE LL_USART_GetHWFlowCtrl
CR3 CTSE LL_USART_GetHWFlowCtrl
LL_USART_EnableOneBitSamp
Function name
__STATIC_INLINE void LL_USART_EnableOneBitSamp
(USART_TypeDef * USARTx)
Function description
Enable One bit sampling method.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
CR3 ONEBIT LL_USART_EnableOneBitSamp
LL USART Generic Driver
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LL_USART_DisableOneBitSamp
Function name
__STATIC_INLINE void LL_USART_DisableOneBitSamp
(USART_TypeDef * USARTx)
Function description
Disable One bit sampling method.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 ONEBIT LL_USART_DisableOneBitSamp
LL_USART_IsEnabledOneBitSamp
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledOneBitSamp
(USART_TypeDef * USARTx)
Function description
Indicate if One bit sampling method is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 ONEBIT LL_USART_IsEnabledOneBitSamp
LL_USART_EnableOverrunDetect
Function name
__STATIC_INLINE void LL_USART_EnableOverrunDetect
(USART_TypeDef * USARTx)
Function description
Enable Overrun detection.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 OVRDIS LL_USART_EnableOverrunDetect
LL_USART_DisableOverrunDetect
Function name
__STATIC_INLINE void LL_USART_DisableOverrunDetect
(USART_TypeDef * USARTx)
Function description
Disable Overrun detection.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 OVRDIS LL_USART_DisableOverrunDetect
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LL_USART_IsEnabledOverrunDetect
Function name
__STATIC_INLINE uint32_t
LL_USART_IsEnabledOverrunDetect (USART_TypeDef *
USARTx)
Function description
Indicate if Overrun detection is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 OVRDIS LL_USART_IsEnabledOverrunDetect
LL_USART_SetWKUPType
Function name
__STATIC_INLINE void LL_USART_SetWKUPType
(USART_TypeDef * USARTx, uint32_t Type)
Function description
Select event type for Wake UP Interrupt Flag (WUS[1:0] bits)
Parameters
USARTx: USART Instance
Type: This parameter can be one of the following values:
LL_USART_WAKEUP_ON_ADDRESS
LL_USART_WAKEUP_ON_STARTBIT
LL_USART_WAKEUP_ON_RXNE
Return values
None
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 WUS LL_USART_SetWKUPType
LL_USART_GetWKUPType
Function name
__STATIC_INLINE uint32_t LL_USART_GetWKUPType
(USART_TypeDef * USARTx)
Function description
Return event type for Wake UP Interrupt Flag (WUS[1:0] bits)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_WAKEUP_ON_ADDRESS
LL_USART_WAKEUP_ON_STARTBIT
LL_USART_WAKEUP_ON_RXNE
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
CR3 WUS LL_USART_GetWKUPType
LL USART Generic Driver
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LL_USART_SetBaudRate
Function name
__STATIC_INLINE void LL_USART_SetBaudRate
(USART_TypeDef * USARTx, uint32_t PeriphClk, uint32_t
OverSampling, uint32_t BaudRate)
Function description
Configure USART BRR register for achieving expected Baud Rate
value.
Parameters
USARTx: USART Instance
PeriphClk: Peripheral Clock
OverSampling: This parameter can be one of the following
values:
LL_USART_OVERSAMPLING_16
LL_USART_OVERSAMPLING_8
BaudRate: Baud Rate
Return values
None
Notes
Compute and set USARTDIV value in BRR Register (full BRR
content) according to used Peripheral Clock, Oversampling
mode, and expected Baud Rate values
Peripheral clock and Baud rate values provided as function
parameters should be valid (Baud rate value != 0)
Reference Manual to
LL API cross
reference:
BRR BRR LL_USART_SetBaudRate
LL_USART_GetBaudRate
Function name
__STATIC_INLINE uint32_t LL_USART_GetBaudRate
(USART_TypeDef * USARTx, uint32_t PeriphClk, uint32_t
OverSampling)
Function description
Return current Baud Rate value, according to USARTDIV present
in BRR register (full BRR content), and to used Peripheral Clock
and Oversampling mode values.
Parameters
USARTx: USART Instance
PeriphClk: Peripheral Clock
OverSampling: This parameter can be one of the following
values:
LL_USART_OVERSAMPLING_16
LL_USART_OVERSAMPLING_8
Return values
Baud: Rate
Notes
In case of non-initialized or invalid value stored in BRR
register, value 0 will be returned.
Reference Manual to
LL API cross
reference:
BRR BRR LL_USART_GetBaudRate
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LL_USART_SetRxTimeout
Function name
__STATIC_INLINE void LL_USART_SetRxTimeout
(USART_TypeDef * USARTx, uint32_t Timeout)
Function description
Set Receiver Time Out Value (expressed in nb of bits duration)
Parameters
USARTx: USART Instance
Timeout: Value between Min_Data=0x00 and
Max_Data=0x00FFFFFF
Return values
None
Reference Manual to
LL API cross
reference:
RTOR RTO LL_USART_SetRxTimeout
LL_USART_GetRxTimeout
Function name
__STATIC_INLINE uint32_t LL_USART_GetRxTimeout
(USART_TypeDef * USARTx)
Function description
Get Receiver Time Out Value (expressed in nb of bits duration)
Parameters
USARTx: USART Instance
Return values
Value: between Min_Data=0x00 and
Max_Data=0x00FFFFFF
Reference Manual to
LL API cross
reference:
RTOR RTO LL_USART_GetRxTimeout
LL_USART_SetBlockLength
Function name
__STATIC_INLINE void LL_USART_SetBlockLength
(USART_TypeDef * USARTx, uint32_t BlockLength)
Function description
Set Block Length value in reception.
Parameters
USARTx: USART Instance
BlockLength: Value between Min_Data=0x00 and
Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
RTOR BLEN LL_USART_SetBlockLength
LL_USART_GetBlockLength
Function name
__STATIC_INLINE uint32_t LL_USART_GetBlockLength
(USART_TypeDef * USARTx)
Function description
Get Block Length value in reception.
Parameters
USARTx: USART Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
RTOR BLEN LL_USART_GetBlockLength
LL USART Generic Driver
UM1749
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LL API cross
reference:
LL_USART_EnableIrda
Function name
__STATIC_INLINE void LL_USART_EnableIrda
(USART_TypeDef * USARTx)
Function description
Enable IrDA mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR3 IREN LL_USART_EnableIrda
LL_USART_DisableIrda
Function name
__STATIC_INLINE void LL_USART_DisableIrda
(USART_TypeDef * USARTx)
Function description
Disable IrDA mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR3 IREN LL_USART_DisableIrda
LL_USART_IsEnabledIrda
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIrda
(USART_TypeDef * USARTx)
Function description
Indicate if IrDA mode is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR3 IREN LL_USART_IsEnabledIrda
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LL_USART_SetIrdaPowerMode
Function name
__STATIC_INLINE void LL_USART_SetIrdaPowerMode
(USART_TypeDef * USARTx, uint32_t PowerMode)
Function description
Configure IrDA Power Mode (Normal or Low Power)
Parameters
USARTx: USART Instance
PowerMode: This parameter can be one of the following
values:
LL_USART_IRDA_POWER_NORMAL
LL_USART_IRDA_POWER_LOW
Return values
None
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR3 IRLP LL_USART_SetIrdaPowerMode
LL_USART_GetIrdaPowerMode
Function name
__STATIC_INLINE uint32_t LL_USART_GetIrdaPowerMode
(USART_TypeDef * USARTx)
Function description
Retrieve IrDA Power Mode configuration (Normal or Low Power)
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_IRDA_POWER_NORMAL
LL_USART_PHASE_2EDGE
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR3 IRLP LL_USART_GetIrdaPowerMode
LL_USART_SetIrdaPrescaler
Function name
__STATIC_INLINE void LL_USART_SetIrdaPrescaler
(USART_TypeDef * USARTx, uint32_t PrescalerValue)
Function description
Set Irda prescaler value, used for dividing the USART clock source
to achieve the Irda Low Power frequency (8 bits value)
Parameters
USARTx: USART Instance
PrescalerValue: Value between Min_Data=0x00 and
Max_Data=0xFF
Return values
None
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
LL USART Generic Driver
UM1749
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DocID026232 Rev 6
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_SetIrdaPrescaler
LL_USART_GetIrdaPrescaler
Function name
__STATIC_INLINE uint32_t LL_USART_GetIrdaPrescaler
(USART_TypeDef * USARTx)
Function description
Return Irda prescaler value, used for dividing the USART clock
source to achieve the Irda Low Power frequency (8 bits value)
Parameters
USARTx: USART Instance
Return values
Irda: prescaler value (Value between Min_Data=0x00 and
Max_Data=0xFF)
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_GetIrdaPrescaler
LL_USART_EnableSmartcardNACK
Function name
__STATIC_INLINE void LL_USART_EnableSmartcardNACK
(USART_TypeDef * USARTx)
Function description
Enable Smartcard NACK transmission.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 NACK LL_USART_EnableSmartcardNACK
LL_USART_DisableSmartcardNACK
Function name
__STATIC_INLINE void LL_USART_DisableSmartcardNACK
(USART_TypeDef * USARTx)
Function description
Disable Smartcard NACK transmission.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
CR3 NACK LL_USART_DisableSmartcardNACK
UM1749
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reference:
LL_USART_IsEnabledSmartcardNACK
Function name
__STATIC_INLINE uint32_t
LL_USART_IsEnabledSmartcardNACK (USART_TypeDef *
USARTx)
Function description
Indicate if Smartcard NACK transmission is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 NACK LL_USART_IsEnabledSmartcardNACK
LL_USART_EnableSmartcard
Function name
__STATIC_INLINE void LL_USART_EnableSmartcard
(USART_TypeDef * USARTx)
Function description
Enable Smartcard mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 SCEN LL_USART_EnableSmartcard
LL_USART_DisableSmartcard
Function name
__STATIC_INLINE void LL_USART_DisableSmartcard
(USART_TypeDef * USARTx)
Function description
Disable Smartcard mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 SCEN LL_USART_DisableSmartcard
LL USART Generic Driver
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LL_USART_IsEnabledSmartcard
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledSmartcard
(USART_TypeDef * USARTx)
Function description
Indicate if Smartcard mode is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 SCEN LL_USART_IsEnabledSmartcard
LL_USART_SetSmartcardAutoRetryCount
Function name
__STATIC_INLINE void
LL_USART_SetSmartcardAutoRetryCount (USART_TypeDef *
USARTx, uint32_t AutoRetryCount)
Function description
Set Smartcard Auto-Retry Count value (SCARCNT[2:0] bits)
Parameters
USARTx: USART Instance
AutoRetryCount: Value between Min_Data=0 and
Max_Data=7
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
This bit-field specifies the number of retries in transmit and
receive, in Smartcard mode. In transmission mode, it
specifies the number of automatic retransmission retries,
before generating a transmission error (FE bit set). In
reception mode, it specifies the number or erroneous
reception trials, before generating a reception error (RXNE
and PE bits set)
Reference Manual to
LL API cross
reference:
CR3 SCARCNT LL_USART_SetSmartcardAutoRetryCount
LL_USART_GetSmartcardAutoRetryCount
Function name
__STATIC_INLINE uint32_t
LL_USART_GetSmartcardAutoRetryCount (USART_TypeDef *
USARTx)
Function description
Return Smartcard Auto-Retry Count value (SCARCNT[2:0] bits)
Parameters
USARTx: USART Instance
Return values
Smartcard: Auto-Retry Count value (Value between
Min_Data=0 and Max_Data=7)
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LL USART Generic Driver
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Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 SCARCNT LL_USART_GetSmartcardAutoRetryCount
LL_USART_SetSmartcardPrescaler
Function name
__STATIC_INLINE void LL_USART_SetSmartcardPrescaler
(USART_TypeDef * USARTx, uint32_t PrescalerValue)
Function description
Set Smartcard prescaler value, used for dividing the USART clock
source to provide the SMARTCARD Clock (5 bits value)
Parameters
USARTx: USART Instance
PrescalerValue: Value between Min_Data=0 and
Max_Data=31
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_SetSmartcardPrescaler
LL_USART_GetSmartcardPrescaler
Function name
__STATIC_INLINE uint32_t
LL_USART_GetSmartcardPrescaler (USART_TypeDef *
USARTx)
Function description
Return Smartcard prescaler value, used for dividing the USART
clock source to provide the SMARTCARD Clock (5 bits value)
Parameters
USARTx: USART Instance
Return values
Smartcard: prescaler value (Value between Min_Data=0
and Max_Data=31)
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_GetSmartcardPrescaler
LL_USART_SetSmartcardGuardTime
Function name
__STATIC_INLINE void LL_USART_SetSmartcardGuardTime
(USART_TypeDef * USARTx, uint32_t GuardTime)
Function description
Set Smartcard Guard time value, expressed in nb of baud clocks
periods (GT[7:0] bits : Guard time value)
LL USART Generic Driver
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Parameters
USARTx: USART Instance
GuardTime: Value between Min_Data=0x00 and
Max_Data=0xFF
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
GTPR GT LL_USART_SetSmartcardGuardTime
LL_USART_GetSmartcardGuardTime
Function name
__STATIC_INLINE uint32_t
LL_USART_GetSmartcardGuardTime (USART_TypeDef *
USARTx)
Function description
Return Smartcard Guard time value, expressed in nb of baud
clocks periods (GT[7:0] bits : Guard time value)
Parameters
USARTx: USART Instance
Return values
Smartcard: Guard time value (Value between
Min_Data=0x00 and Max_Data=0xFF)
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
GTPR GT LL_USART_GetSmartcardGuardTime
LL_USART_EnableHalfDuplex
Function name
__STATIC_INLINE void LL_USART_EnableHalfDuplex
(USART_TypeDef * USARTx)
Function description
Enable Single Wire Half-Duplex mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HALFDUPLEX_INSTANCE(USARTx) can
be used to check whether or not Half-Duplex mode is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_USART_EnableHalfDuplex
LL_USART_DisableHalfDuplex
Function name
__STATIC_INLINE void LL_USART_DisableHalfDuplex
(USART_TypeDef * USARTx)
Function description
Disable Single Wire Half-Duplex mode.
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Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HALFDUPLEX_INSTANCE(USARTx) can
be used to check whether or not Half-Duplex mode is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_USART_DisableHalfDuplex
LL_USART_IsEnabledHalfDuplex
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledHalfDuplex
(USART_TypeDef * USARTx)
Function description
Indicate if Single Wire Half-Duplex mode is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_HALFDUPLEX_INSTANCE(USARTx) can
be used to check whether or not Half-Duplex mode is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 HDSEL LL_USART_IsEnabledHalfDuplex
LL_USART_SetLINBrkDetectionLen
Function name
__STATIC_INLINE void LL_USART_SetLINBrkDetectionLen
(USART_TypeDef * USARTx, uint32_t LINBDLength)
Function description
Set LIN Break Detection Length.
Parameters
USARTx: USART Instance
LINBDLength: This parameter can be one of the following
values:
LL_USART_LINBREAK_DETECT_10B
LL_USART_LINBREAK_DETECT_11B
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LBDL LL_USART_SetLINBrkDetectionLen
LL_USART_GetLINBrkDetectionLen
Function name
__STATIC_INLINE uint32_t
LL_USART_GetLINBrkDetectionLen (USART_TypeDef *
USARTx)
LL USART Generic Driver
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Function description
Return LIN Break Detection Length.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
LL_USART_LINBREAK_DETECT_10B
LL_USART_LINBREAK_DETECT_11B
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LBDL LL_USART_GetLINBrkDetectionLen
LL_USART_EnableLIN
Function name
__STATIC_INLINE void LL_USART_EnableLIN
(USART_TypeDef * USARTx)
Function description
Enable LIN mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_EnableLIN
LL_USART_DisableLIN
Function name
__STATIC_INLINE void LL_USART_DisableLIN
(USART_TypeDef * USARTx)
Function description
Disable LIN mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_DisableLIN
LL_USART_IsEnabledLIN
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledLIN
(USART_TypeDef * USARTx)
Function description
Indicate if LIN mode is enabled.
UM1749
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Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_IsEnabledLIN
LL_USART_SetDEDeassertionTime
Function name
__STATIC_INLINE void LL_USART_SetDEDeassertionTime
(USART_TypeDef * USARTx, uint32_t Time)
Function description
Set DEDT (Driver Enable De-Assertion Time), Time value
expressed on 5 bits ([4:0] bits).
Parameters
USARTx: USART Instance
Time: Value between Min_Data=0 and Max_Data=31
Return values
None
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 DEDT LL_USART_SetDEDeassertionTime
LL_USART_GetDEDeassertionTime
Function name
__STATIC_INLINE uint32_t
LL_USART_GetDEDeassertionTime (USART_TypeDef *
USARTx)
Function description
Return DEDT (Driver Enable De-Assertion Time)
Parameters
USARTx: USART Instance
Return values
Time: value expressed on 5 bits ([4:0] bits) : Value between
Min_Data=0 and Max_Data=31
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 DEDT LL_USART_GetDEDeassertionTime
LL_USART_SetDEAssertionTime
Function name
__STATIC_INLINE void LL_USART_SetDEAssertionTime
(USART_TypeDef * USARTx, uint32_t Time)
Function description
Set DEAT (Driver Enable Assertion Time), Time value expressed
on 5 bits ([4:0] bits).
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Parameters
USARTx: USART Instance
Time: Value between Min_Data=0 and Max_Data=31
Return values
None
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 DEAT LL_USART_SetDEAssertionTime
LL_USART_GetDEAssertionTime
Function name
__STATIC_INLINE uint32_t LL_USART_GetDEAssertionTime
(USART_TypeDef * USARTx)
Function description
Return DEAT (Driver Enable Assertion Time)
Parameters
USARTx: USART Instance
Return values
Time: value expressed on 5 bits ([4:0] bits) : Value between
Min_Data=0 and Max_Data=31
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 DEAT LL_USART_GetDEAssertionTime
LL_USART_EnableDEMode
Function name
__STATIC_INLINE void LL_USART_EnableDEMode
(USART_TypeDef * USARTx)
Function description
Enable Driver Enable (DE) Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 DEM LL_USART_EnableDEMode
LL_USART_DisableDEMode
Function name
__STATIC_INLINE void LL_USART_DisableDEMode
(USART_TypeDef * USARTx)
Function description
Disable Driver Enable (DE) Mode.
Parameters
USARTx: USART Instance
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Return values
None
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 DEM LL_USART_DisableDEMode
LL_USART_IsEnabledDEMode
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledDEMode
(USART_TypeDef * USARTx)
Function description
Indicate if Driver Enable (DE) Mode is enabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 DEM LL_USART_IsEnabledDEMode
LL_USART_SetDESignalPolarity
Function name
__STATIC_INLINE void LL_USART_SetDESignalPolarity
(USART_TypeDef * USARTx, uint32_t Polarity)
Function description
Select Driver Enable Polarity.
Parameters
USARTx: USART Instance
Polarity: This parameter can be one of the following values:
LL_USART_DE_POLARITY_HIGH
LL_USART_DE_POLARITY_LOW
Return values
None
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 DEP LL_USART_SetDESignalPolarity
LL_USART_GetDESignalPolarity
Function name
__STATIC_INLINE uint32_t LL_USART_GetDESignalPolarity
(USART_TypeDef * USARTx)
Function description
Return Driver Enable Polarity.
Parameters
USARTx: USART Instance
Return values
Returned: value can be one of the following values:
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LL_USART_DE_POLARITY_HIGH
LL_USART_DE_POLARITY_LOW
Notes
Macro IS_UART_DRIVER_ENABLE_INSTANCE(USARTx)
can be used to check whether or not Driver Enable feature is
supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 DEP LL_USART_GetDESignalPolarity
LL_USART_ConfigAsyncMode
Function name
__STATIC_INLINE void LL_USART_ConfigAsyncMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in
Asynchronous Mode (UART)
Parameters
USARTx: USART Instance
Return values
None
Notes
In UART mode, the following bits must be kept cleared:
LINEN bit in the USART_CR2 register,CLKEN bit in the
USART_CR2 register,SCEN bit in the USART_CR3
register,IREN bit in the USART_CR3 register,HDSEL bit in
the USART_CR3 register.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear CLKEN in CR2 using
LL_USART_DisableSCLKOutput() functionClear SCEN in
CR3 using LL_USART_DisableSmartcard() functionClear
IREN in CR3 using LL_USART_DisableIrda() functionClear
HDSEL in CR3 using LL_USART_DisableHalfDuplex()
function
Other remaining configurations items related to Asynchronous
Mode (as Baud Rate, Word length, Parity, ...) should be set
using dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigAsyncMode
CR2 CLKEN LL_USART_ConfigAsyncMode
CR3 SCEN LL_USART_ConfigAsyncMode
CR3 IREN LL_USART_ConfigAsyncMode
CR3 HDSEL LL_USART_ConfigAsyncMode
LL_USART_ConfigSyncMode
Function name
__STATIC_INLINE void LL_USART_ConfigSyncMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in
Synchronous Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
In Synchronous mode, the following bits must be kept
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cleared: LINEN bit in the USART_CR2 register,SCEN bit in
the USART_CR3 register,IREN bit in the USART_CR3
register,HDSEL bit in the USART_CR3 register. This function
also sets the USART in Synchronous mode.
Macro IS_USART_INSTANCE(USARTx) can be used to
check whether or not Synchronous mode is supported by the
USARTx instance.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear IREN in CR3 using
LL_USART_DisableIrda() functionClear SCEN in CR3 using
LL_USART_DisableSmartcard() functionClear HDSEL in CR3
using LL_USART_DisableHalfDuplex() functionSet CLKEN in
CR2 using LL_USART_EnableSCLKOutput() function
Other remaining configurations items related to Synchronous
Mode (as Baud Rate, Word length, Parity, Clock Polarity, ...)
should be set using dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigSyncMode
CR2 CLKEN LL_USART_ConfigSyncMode
CR3 SCEN LL_USART_ConfigSyncMode
CR3 IREN LL_USART_ConfigSyncMode
CR3 HDSEL LL_USART_ConfigSyncMode
LL_USART_ConfigLINMode
Function name
__STATIC_INLINE void LL_USART_ConfigLINMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in LIN
Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
In LIN mode, the following bits must be kept cleared: STOP
and CLKEN bits in the USART_CR2 register,SCEN bit in the
USART_CR3 register,IREN bit in the USART_CR3
register,HDSEL bit in the USART_CR3 register. This function
also set the UART/USART in LIN mode.
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Call of this function is equivalent to following function call
sequence : Clear CLKEN in CR2 using
LL_USART_DisableSCLKOutput() functionClear STOP in
CR2 using LL_USART_SetStopBitsLength() functionClear
SCEN in CR3 using LL_USART_DisableSmartcard()
functionClear IREN in CR3 using LL_USART_DisableIrda()
functionClear HDSEL in CR3 using
LL_USART_DisableHalfDuplex() functionSet LINEN in CR2
using LL_USART_EnableLIN() function
Other remaining configurations items related to LIN Mode (as
Baud Rate, Word length, LIN Break Detection Length, ...)
should be set using dedicated functions
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Reference Manual to
LL API cross
reference:
CR2 CLKEN LL_USART_ConfigLINMode
CR2 STOP LL_USART_ConfigLINMode
CR2 LINEN LL_USART_ConfigLINMode
CR3 IREN LL_USART_ConfigLINMode
CR3 SCEN LL_USART_ConfigLINMode
CR3 HDSEL LL_USART_ConfigLINMode
LL_USART_ConfigHalfDuplexMode
Function name
__STATIC_INLINE void LL_USART_ConfigHalfDuplexMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in Half
Duplex Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
In Half Duplex mode, the following bits must be kept cleared:
LINEN bit in the USART_CR2 register,CLKEN bit in the
USART_CR2 register,SCEN bit in the USART_CR3
register,IREN bit in the USART_CR3 register, This function
also sets the UART/USART in Half Duplex mode.
Macro IS_UART_HALFDUPLEX_INSTANCE(USARTx) can
be used to check whether or not Half-Duplex mode is
supported by the USARTx instance.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear CLKEN in CR2 using
LL_USART_DisableSCLKOutput() functionClear SCEN in
CR3 using LL_USART_DisableSmartcard() functionClear
IREN in CR3 using LL_USART_DisableIrda() functionSet
HDSEL in CR3 using LL_USART_EnableHalfDuplex()
function
Other remaining configurations items related to Half Duplex
Mode (as Baud Rate, Word length, Parity, ...) should be set
using dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigHalfDuplexMode
CR2 CLKEN LL_USART_ConfigHalfDuplexMode
CR3 HDSEL LL_USART_ConfigHalfDuplexMode
CR3 SCEN LL_USART_ConfigHalfDuplexMode
CR3 IREN LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigSmartcardMode
Function name
__STATIC_INLINE void LL_USART_ConfigSmartcardMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in
Smartcard Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
In Smartcard mode, the following bits must be kept cleared:
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LINEN bit in the USART_CR2 register,IREN bit in the
USART_CR3 register,HDSEL bit in the USART_CR3 register.
This function also configures Stop bits to 1.5 bits and sets the
USART in Smartcard mode (SCEN bit). Clock Output is also
enabled (CLKEN).
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear IREN in CR3 using
LL_USART_DisableIrda() functionClear HDSEL in CR3 using
LL_USART_DisableHalfDuplex() functionConfigure STOP in
CR2 using LL_USART_SetStopBitsLength() functionSet
CLKEN in CR2 using LL_USART_EnableSCLKOutput()
functionSet SCEN in CR3 using
LL_USART_EnableSmartcard() function
Other remaining configurations items related to Smartcard
Mode (as Baud Rate, Word length, Parity, ...) should be set
using dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigSmartcardMode
CR2 STOP LL_USART_ConfigSmartcardMode
CR2 CLKEN LL_USART_ConfigSmartcardMode
CR3 HDSEL LL_USART_ConfigSmartcardMode
CR3 SCEN LL_USART_ConfigSmartcardMode
LL_USART_ConfigIrdaMode
Function name
__STATIC_INLINE void LL_USART_ConfigIrdaMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in Irda
Mode.
Parameters
USARTx: USART Instance
Return values
None
Notes
In IRDA mode, the following bits must be kept cleared: LINEN
bit in the USART_CR2 register,STOP and CLKEN bits in the
USART_CR2 register,SCEN bit in the USART_CR3
register,HDSEL bit in the USART_CR3 register. This function
also sets the UART/USART in IRDA mode (IREN bit).
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear CLKEN in CR2 using
LL_USART_DisableSCLKOutput() functionClear SCEN in
CR3 using LL_USART_DisableSmartcard() functionClear
HDSEL in CR3 using LL_USART_DisableHalfDuplex()
functionConfigure STOP in CR2 using
LL_USART_SetStopBitsLength() functionSet IREN in CR3
using LL_USART_EnableIrda() function
Other remaining configurations items related to Irda Mode (as
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Baud Rate, Word length, Power mode, ...) should be set using
dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigIrdaMode
CR2 CLKEN LL_USART_ConfigIrdaMode
CR2 STOP LL_USART_ConfigIrdaMode
CR3 SCEN LL_USART_ConfigIrdaMode
CR3 HDSEL LL_USART_ConfigIrdaMode
CR3 IREN LL_USART_ConfigIrdaMode
LL_USART_ConfigMultiProcessMode
Function name
__STATIC_INLINE void LL_USART_ConfigMultiProcessMode
(USART_TypeDef * USARTx)
Function description
Perform basic configuration of USART for enabling use in Multi
processor Mode (several USARTs connected in a network, one of
the USARTs can be the master, its TX output connected to the RX
inputs of the other slaves USARTs).
Parameters
USARTx: USART Instance
Return values
None
Notes
In MultiProcessor mode, the following bits must be kept
cleared: LINEN bit in the USART_CR2 register,CLKEN bit in
the USART_CR2 register,SCEN bit in the USART_CR3
register,IREN bit in the USART_CR3 register,HDSEL bit in
the USART_CR3 register.
Call of this function is equivalent to following function call
sequence : Clear LINEN in CR2 using
LL_USART_DisableLIN() functionClear CLKEN in CR2 using
LL_USART_DisableSCLKOutput() functionClear SCEN in
CR3 using LL_USART_DisableSmartcard() functionClear
IREN in CR3 using LL_USART_DisableIrda() functionClear
HDSEL in CR3 using LL_USART_DisableHalfDuplex()
function
Other remaining configurations items related to Multi
processor Mode (as Baud Rate, Wake Up Method, Node
address, ...) should be set using dedicated functions
Reference Manual to
LL API cross
reference:
CR2 LINEN LL_USART_ConfigMultiProcessMode
CR2 CLKEN LL_USART_ConfigMultiProcessMode
CR3 SCEN LL_USART_ConfigMultiProcessMode
CR3 HDSEL LL_USART_ConfigMultiProcessMode
CR3 IREN LL_USART_ConfigMultiProcessMode
LL_USART_IsActiveFlag_PE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_PE
(USART_TypeDef * USARTx)
Function description
Check if the USART Parity Error Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
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Reference Manual to
LL API cross
reference:
ISR PE LL_USART_IsActiveFlag_PE
LL_USART_IsActiveFlag_FE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_FE
(USART_TypeDef * USARTx)
Function description
Check if the USART Framing Error Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR FE LL_USART_IsActiveFlag_FE
LL_USART_IsActiveFlag_NE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_NE
(USART_TypeDef * USARTx)
Function description
Check if the USART Noise error detected Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR NF LL_USART_IsActiveFlag_NE
LL_USART_IsActiveFlag_ORE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_ORE
(USART_TypeDef * USARTx)
Function description
Check if the USART OverRun Error Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR ORE LL_USART_IsActiveFlag_ORE
LL_USART_IsActiveFlag_IDLE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_IDLE
(USART_TypeDef * USARTx)
Function description
Check if the USART IDLE line detected Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
ISR IDLE LL_USART_IsActiveFlag_IDLE
LL USART Generic Driver
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LL_USART_IsActiveFlag_RXNE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RXNE
(USART_TypeDef * USARTx)
Function description
Check if the USART Read Data Register Not Empty Flag is set or
not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RXNE LL_USART_IsActiveFlag_RXNE
LL_USART_IsActiveFlag_TC
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TC
(USART_TypeDef * USARTx)
Function description
Check if the USART Transmission Complete Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TC LL_USART_IsActiveFlag_TC
LL_USART_IsActiveFlag_TXE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TXE
(USART_TypeDef * USARTx)
Function description
Check if the USART Transmit Data Register Empty Flag is set or
not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TXE LL_USART_IsActiveFlag_TXE
LL_USART_IsActiveFlag_LBD
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_LBD
(USART_TypeDef * USARTx)
Function description
Check if the USART LIN Break Detection Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
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instance.
Reference Manual to
LL API cross
reference:
ISR LBDF LL_USART_IsActiveFlag_LBD
LL_USART_IsActiveFlag_nCTS
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_nCTS
(USART_TypeDef * USARTx)
Function description
Check if the USART CTS interrupt Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
ISR CTSIF LL_USART_IsActiveFlag_nCTS
LL_USART_IsActiveFlag_CTS
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_CTS
(USART_TypeDef * USARTx)
Function description
Check if the USART CTS Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
ISR CTS LL_USART_IsActiveFlag_CTS
LL_USART_IsActiveFlag_RTO
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RTO
(USART_TypeDef * USARTx)
Function description
Check if the USART Receiver Time Out Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RTOF LL_USART_IsActiveFlag_RTO
LL USART Generic Driver
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LL_USART_IsActiveFlag_EOB
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_EOB
(USART_TypeDef * USARTx)
Function description
Check if the USART End Of Block Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
ISR EOBF LL_USART_IsActiveFlag_EOB
LL_USART_IsActiveFlag_ABRE
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_ABRE
(USART_TypeDef * USARTx)
Function description
Check if the USART Auto-Baud Rate Error Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
ISR ABRE LL_USART_IsActiveFlag_ABRE
LL_USART_IsActiveFlag_ABR
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_ABR
(USART_TypeDef * USARTx)
Function description
Check if the USART Auto-Baud Rate Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
ISR ABRF LL_USART_IsActiveFlag_ABR
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LL_USART_IsActiveFlag_BUSY
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_BUSY
(USART_TypeDef * USARTx)
Function description
Check if the USART Busy Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR BUSY LL_USART_IsActiveFlag_BUSY
LL_USART_IsActiveFlag_CM
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_CM
(USART_TypeDef * USARTx)
Function description
Check if the USART Character Match Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR CMF LL_USART_IsActiveFlag_CM
LL_USART_IsActiveFlag_SBK
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_SBK
(USART_TypeDef * USARTx)
Function description
Check if the USART Send Break Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR SBKF LL_USART_IsActiveFlag_SBK
LL_USART_IsActiveFlag_RWU
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RWU
(USART_TypeDef * USARTx)
Function description
Check if the USART Receive Wake Up from mute mode Flag is set
or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR RWU LL_USART_IsActiveFlag_RWU
LL USART Generic Driver
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LL_USART_IsActiveFlag_WKUP
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_WKUP
(USART_TypeDef * USARTx)
Function description
Check if the USART Wake Up from stop mode Flag is set or not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
ISR WUF LL_USART_IsActiveFlag_WKUP
LL_USART_IsActiveFlag_TEACK
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TEACK
(USART_TypeDef * USARTx)
Function description
Check if the USART Transmit Enable Acknowledge Flag is set or
not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR TEACK LL_USART_IsActiveFlag_TEACK
LL_USART_IsActiveFlag_REACK
Function name
__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_REACK
(USART_TypeDef * USARTx)
Function description
Check if the USART Receive Enable Acknowledge Flag is set or
not.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
ISR REACK LL_USART_IsActiveFlag_REACK
LL_USART_ClearFlag_PE
Function name
__STATIC_INLINE void LL_USART_ClearFlag_PE
(USART_TypeDef * USARTx)
Function description
Clear Parity Error Flag.
Parameters
USARTx: USART Instance
Return values
None
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1353/1466
Reference Manual to
LL API cross
reference:
ICR PECF LL_USART_ClearFlag_PE
LL_USART_ClearFlag_FE
Function name
__STATIC_INLINE void LL_USART_ClearFlag_FE
(USART_TypeDef * USARTx)
Function description
Clear Framing Error Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR FECF LL_USART_ClearFlag_FE
LL_USART_ClearFlag_NE
Function name
__STATIC_INLINE void LL_USART_ClearFlag_NE
(USART_TypeDef * USARTx)
Function description
Clear Noise detected Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR NCF LL_USART_ClearFlag_NE
LL_USART_ClearFlag_ORE
Function name
__STATIC_INLINE void LL_USART_ClearFlag_ORE
(USART_TypeDef * USARTx)
Function description
Clear OverRun Error Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR ORECF LL_USART_ClearFlag_ORE
LL_USART_ClearFlag_IDLE
Function name
__STATIC_INLINE void LL_USART_ClearFlag_IDLE
(USART_TypeDef * USARTx)
Function description
Clear IDLE line detected Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
ICR IDLECF LL_USART_ClearFlag_IDLE
LL USART Generic Driver
UM1749
1354/1466
DocID026232 Rev 6
reference:
LL_USART_ClearFlag_TC
Function name
__STATIC_INLINE void LL_USART_ClearFlag_TC
(USART_TypeDef * USARTx)
Function description
Clear Transmission Complete Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR TCCF LL_USART_ClearFlag_TC
LL_USART_ClearFlag_LBD
Function name
__STATIC_INLINE void LL_USART_ClearFlag_LBD
(USART_TypeDef * USARTx)
Function description
Clear LIN Break Detection Flag.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
ICR LBDCF LL_USART_ClearFlag_LBD
LL_USART_ClearFlag_nCTS
Function name
__STATIC_INLINE void LL_USART_ClearFlag_nCTS
(USART_TypeDef * USARTx)
Function description
Clear CTS Interrupt Flag.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
ICR CTSCF LL_USART_ClearFlag_nCTS
LL_USART_ClearFlag_RTO
Function name
__STATIC_INLINE void LL_USART_ClearFlag_RTO
(USART_TypeDef * USARTx)
Function description
Clear Receiver Time Out Flag.
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1355/1466
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR RTOCF LL_USART_ClearFlag_RTO
LL_USART_ClearFlag_EOB
Function name
__STATIC_INLINE void LL_USART_ClearFlag_EOB
(USART_TypeDef * USARTx)
Function description
Clear End Of Block Flag.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
ICR EOBCF LL_USART_ClearFlag_EOB
LL_USART_ClearFlag_CM
Function name
__STATIC_INLINE void LL_USART_ClearFlag_CM
(USART_TypeDef * USARTx)
Function description
Clear Character Match Flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
ICR CMCF LL_USART_ClearFlag_CM
LL_USART_ClearFlag_WKUP
Function name
__STATIC_INLINE void LL_USART_ClearFlag_WKUP
(USART_TypeDef * USARTx)
Function description
Clear Wake Up from stop mode Flag.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
ICR WUCF LL_USART_ClearFlag_WKUP
LL USART Generic Driver
UM1749
1356/1466
DocID026232 Rev 6
LL_USART_EnableIT_IDLE
Function name
__STATIC_INLINE void LL_USART_EnableIT_IDLE
(USART_TypeDef * USARTx)
Function description
Enable IDLE Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_USART_EnableIT_IDLE
LL_USART_EnableIT_RXNE
Function name
__STATIC_INLINE void LL_USART_EnableIT_RXNE
(USART_TypeDef * USARTx)
Function description
Enable RX Not Empty Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_USART_EnableIT_RXNE
LL_USART_EnableIT_TC
Function name
__STATIC_INLINE void LL_USART_EnableIT_TC
(USART_TypeDef * USARTx)
Function description
Enable Transmission Complete Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_USART_EnableIT_TC
LL_USART_EnableIT_TXE
Function name
__STATIC_INLINE void LL_USART_EnableIT_TXE
(USART_TypeDef * USARTx)
Function description
Enable TX Empty Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_USART_EnableIT_TXE
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1357/1466
LL_USART_EnableIT_PE
Function name
__STATIC_INLINE void LL_USART_EnableIT_PE
(USART_TypeDef * USARTx)
Function description
Enable Parity Error Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_USART_EnableIT_PE
LL_USART_EnableIT_CM
Function name
__STATIC_INLINE void LL_USART_EnableIT_CM
(USART_TypeDef * USARTx)
Function description
Enable Character Match Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_USART_EnableIT_CM
LL_USART_EnableIT_RTO
Function name
__STATIC_INLINE void LL_USART_EnableIT_RTO
(USART_TypeDef * USARTx)
Function description
Enable Receiver Timeout Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RTOIE LL_USART_EnableIT_RTO
LL_USART_EnableIT_EOB
Function name
__STATIC_INLINE void LL_USART_EnableIT_EOB
(USART_TypeDef * USARTx)
Function description
Enable End Of Block Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
CR1 EOBIE LL_USART_EnableIT_EOB
LL USART Generic Driver
UM1749
1358/1466
DocID026232 Rev 6
reference:
LL_USART_EnableIT_LBD
Function name
__STATIC_INLINE void LL_USART_EnableIT_LBD
(USART_TypeDef * USARTx)
Function description
Enable LIN Break Detection Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LBDIE LL_USART_EnableIT_LBD
LL_USART_EnableIT_ERROR
Function name
__STATIC_INLINE void LL_USART_EnableIT_ERROR
(USART_TypeDef * USARTx)
Function description
Enable Error Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
When set, Error Interrupt Enable Bit is enabling interrupt
generation in case of a framing error, overrun error or noise
flag (FE=1 or ORE=1 or NF=1 in the USARTx_ISR register).
0: Interrupt is inhibited 1: An interrupt is generated when
FE=1 or ORE=1 or NF=1 in the USARTx_ISR register.
Reference Manual to
LL API cross
reference:
CR3 EIE LL_USART_EnableIT_ERROR
LL_USART_EnableIT_CTS
Function name
__STATIC_INLINE void LL_USART_EnableIT_CTS
(USART_TypeDef * USARTx)
Function description
Enable CTS Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_USART_EnableIT_CTS
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1359/1466
LL_USART_EnableIT_WKUP
Function name
__STATIC_INLINE void LL_USART_EnableIT_WKUP
(USART_TypeDef * USARTx)
Function description
Enable Wake Up from Stop Mode Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_USART_EnableIT_WKUP
LL_USART_DisableIT_IDLE
Function name
__STATIC_INLINE void LL_USART_DisableIT_IDLE
(USART_TypeDef * USARTx)
Function description
Disable IDLE Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_USART_DisableIT_IDLE
LL_USART_DisableIT_RXNE
Function name
__STATIC_INLINE void LL_USART_DisableIT_RXNE
(USART_TypeDef * USARTx)
Function description
Disable RX Not Empty Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_USART_DisableIT_RXNE
LL_USART_DisableIT_TC
Function name
__STATIC_INLINE void LL_USART_DisableIT_TC
(USART_TypeDef * USARTx)
Function description
Disable Transmission Complete Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
CR1 TCIE LL_USART_DisableIT_TC
LL USART Generic Driver
UM1749
1360/1466
DocID026232 Rev 6
reference:
LL_USART_DisableIT_TXE
Function name
__STATIC_INLINE void LL_USART_DisableIT_TXE
(USART_TypeDef * USARTx)
Function description
Disable TX Empty Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_USART_DisableIT_TXE
LL_USART_DisableIT_PE
Function name
__STATIC_INLINE void LL_USART_DisableIT_PE
(USART_TypeDef * USARTx)
Function description
Disable Parity Error Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_USART_DisableIT_PE
LL_USART_DisableIT_CM
Function name
__STATIC_INLINE void LL_USART_DisableIT_CM
(USART_TypeDef * USARTx)
Function description
Disable Character Match Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_USART_DisableIT_CM
LL_USART_DisableIT_RTO
Function name
__STATIC_INLINE void LL_USART_DisableIT_RTO
(USART_TypeDef * USARTx)
Function description
Disable Receiver Timeout Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR1 RTOIE LL_USART_DisableIT_RTO
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1361/1466
LL_USART_DisableIT_EOB
Function name
__STATIC_INLINE void LL_USART_DisableIT_EOB
(USART_TypeDef * USARTx)
Function description
Disable End Of Block Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 EOBIE LL_USART_DisableIT_EOB
LL_USART_DisableIT_LBD
Function name
__STATIC_INLINE void LL_USART_DisableIT_LBD
(USART_TypeDef * USARTx)
Function description
Disable LIN Break Detection Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
CR2 LBDIE LL_USART_DisableIT_LBD
LL_USART_DisableIT_ERROR
Function name
__STATIC_INLINE void LL_USART_DisableIT_ERROR
(USART_TypeDef * USARTx)
Function description
Disable Error Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
When set, Error Interrupt Enable Bit is enabling interrupt
generation in case of a framing error, overrun error or noise
flag (FE=1 or ORE=1 or NF=1 in the USARTx_ISR register).
0: Interrupt is inhibited 1: An interrupt is generated when
FE=1 or ORE=1 or NF=1 in the USARTx_ISR register.
Reference Manual to
LL API cross
reference:
CR3 EIE LL_USART_DisableIT_ERROR
LL USART Generic Driver
UM1749
1362/1466
DocID026232 Rev 6
LL_USART_DisableIT_CTS
Function name
__STATIC_INLINE void LL_USART_DisableIT_CTS
(USART_TypeDef * USARTx)
Function description
Disable CTS Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_USART_DisableIT_CTS
LL_USART_DisableIT_WKUP
Function name
__STATIC_INLINE void LL_USART_DisableIT_WKUP
(USART_TypeDef * USARTx)
Function description
Disable Wake Up from Stop Mode Interrupt.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_USART_DisableIT_WKUP
LL_USART_IsEnabledIT_IDLE
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_IDLE
(USART_TypeDef * USARTx)
Function description
Check if the USART IDLE Interrupt source is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 IDLEIE LL_USART_IsEnabledIT_IDLE
LL_USART_IsEnabledIT_RXNE
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_RXNE
(USART_TypeDef * USARTx)
Function description
Check if the USART RX Not Empty Interrupt is enabled or
disabled.
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1363/1466
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 RXNEIE LL_USART_IsEnabledIT_RXNE
LL_USART_IsEnabledIT_TC
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TC
(USART_TypeDef * USARTx)
Function description
Check if the USART Transmission Complete Interrupt is enabled
or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TCIE LL_USART_IsEnabledIT_TC
LL_USART_IsEnabledIT_TXE
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TXE
(USART_TypeDef * USARTx)
Function description
Check if the USART TX Empty Interrupt is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 TXEIE LL_USART_IsEnabledIT_TXE
LL_USART_IsEnabledIT_PE
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_PE
(USART_TypeDef * USARTx)
Function description
Check if the USART Parity Error Interrupt is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 PEIE LL_USART_IsEnabledIT_PE
LL_USART_IsEnabledIT_CM
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_CM
(USART_TypeDef * USARTx)
Function description
Check if the USART Character Match Interrupt is enabled or
disabled.
LL USART Generic Driver
UM1749
1364/1466
DocID026232 Rev 6
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 CMIE LL_USART_IsEnabledIT_CM
LL_USART_IsEnabledIT_RTO
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_RTO
(USART_TypeDef * USARTx)
Function description
Check if the USART Receiver Timeout Interrupt is enabled or
disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR1 RTOIE LL_USART_IsEnabledIT_RTO
LL_USART_IsEnabledIT_EOB
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_EOB
(USART_TypeDef * USARTx)
Function description
Check if the USART End Of Block Interrupt is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR1 EOBIE LL_USART_IsEnabledIT_EOB
LL_USART_IsEnabledIT_LBD
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_LBD
(USART_TypeDef * USARTx)
Function description
Check if the USART LIN Break Detection Interrupt is enabled or
disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_LIN_INSTANCE(USARTx) can be used to
check whether or not LIN feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
CR2 LBDIE LL_USART_IsEnabledIT_LBD
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1365/1466
reference:
LL_USART_IsEnabledIT_ERROR
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_ERROR
(USART_TypeDef * USARTx)
Function description
Check if the USART Error Interrupt is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 EIE LL_USART_IsEnabledIT_ERROR
LL_USART_IsEnabledIT_CTS
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_CTS
(USART_TypeDef * USARTx)
Function description
Check if the USART CTS Interrupt is enabled or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be
used to check whether or not Hardware Flow control feature
is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 CTSIE LL_USART_IsEnabledIT_CTS
LL_USART_IsEnabledIT_WKUP
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_WKUP
(USART_TypeDef * USARTx)
Function description
Check if the USART Wake Up from Stop Mode Interrupt is enabled
or disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Notes
Macro
IS_UART_WAKEUP_FROMSTOP_INSTANCE(USARTx) can
be used to check whether or not Wake-up from Stop mode
feature is supported by the USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 WUFIE LL_USART_IsEnabledIT_WKUP
LL_USART_EnableDMAReq_RX
Function name
__STATIC_INLINE void LL_USART_EnableDMAReq_RX
LL USART Generic Driver
UM1749
1366/1466
DocID026232 Rev 6
(USART_TypeDef * USARTx)
Function description
Enable DMA Mode for reception.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_USART_EnableDMAReq_RX
LL_USART_DisableDMAReq_RX
Function name
__STATIC_INLINE void LL_USART_DisableDMAReq_RX
(USART_TypeDef * USARTx)
Function description
Disable DMA Mode for reception.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_USART_DisableDMAReq_RX
LL_USART_IsEnabledDMAReq_RX
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_RX
(USART_TypeDef * USARTx)
Function description
Check if DMA Mode is enabled for reception.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DMAR LL_USART_IsEnabledDMAReq_RX
LL_USART_EnableDMAReq_TX
Function name
__STATIC_INLINE void LL_USART_EnableDMAReq_TX
(USART_TypeDef * USARTx)
Function description
Enable DMA Mode for transmission.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_USART_EnableDMAReq_TX
LL_USART_DisableDMAReq_TX
Function name
__STATIC_INLINE void LL_USART_DisableDMAReq_TX
(USART_TypeDef * USARTx)
UM1749
LL USART Generic Driver
DocID026232 Rev 6
1367/1466
Function description
Disable DMA Mode for transmission.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_USART_DisableDMAReq_TX
LL_USART_IsEnabledDMAReq_TX
Function name
__STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_TX
(USART_TypeDef * USARTx)
Function description
Check if DMA Mode is enabled for transmission.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DMAT LL_USART_IsEnabledDMAReq_TX
LL_USART_EnableDMADeactOnRxErr
Function name
__STATIC_INLINE void LL_USART_EnableDMADeactOnRxErr
(USART_TypeDef * USARTx)
Function description
Enable DMA Disabling on Reception Error.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_USART_EnableDMADeactOnRxErr
LL_USART_DisableDMADeactOnRxErr
Function name
__STATIC_INLINE void LL_USART_DisableDMADeactOnRxErr
(USART_TypeDef * USARTx)
Function description
Disable DMA Disabling on Reception Error.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_USART_DisableDMADeactOnRxErr
LL_USART_IsEnabledDMADeactOnRxErr
Function name
__STATIC_INLINE uint32_t
LL_USART_IsEnabledDMADeactOnRxErr (USART_TypeDef *
USARTx)
LL USART Generic Driver
UM1749
1368/1466
DocID026232 Rev 6
Function description
Indicate if DMA Disabling on Reception Error is disabled.
Parameters
USARTx: USART Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR3 DDRE LL_USART_IsEnabledDMADeactOnRxErr
LL_USART_DMA_GetRegAddr
Function name
__STATIC_INLINE uint32_t LL_USART_DMA_GetRegAddr
(USART_TypeDef * USARTx, uint32_t Direction)
Function description
Get the data register address used for DMA transfer.
Parameters
USARTx: USART Instance
Direction: This parameter can be one of the following
values:
LL_USART_DMA_REG_DATA_TRANSMIT
LL_USART_DMA_REG_DATA_RECEIVE
Return values
Address: of data register
Reference Manual to
LL API cross
reference:
RDR RDR LL_USART_DMA_GetRegAddr
TDR TDR LL_USART_DMA_GetRegAddr
LL_USART_ReceiveData8
Function name
__STATIC_INLINE uint8_t LL_USART_ReceiveData8
(USART_TypeDef * USARTx)
Function description
Read Receiver Data register (Receive Data value, 8 bits)
Parameters
USARTx: USART Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0xFF
Reference Manual to
LL API cross
reference:
RDR RDR LL_USART_ReceiveData8
LL_USART_ReceiveData9
Function name
__STATIC_INLINE uint16_t LL_USART_ReceiveData9
(USART_TypeDef * USARTx)
Function description
Read Receiver Data register (Receive Data value, 9 bits)
Parameters
USARTx: USART Instance
Return values
Value: between Min_Data=0x00 and Max_Data=0x1FF
Reference Manual to
LL API cross
reference:
RDR RDR LL_USART_ReceiveData9
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LL_USART_TransmitData8
Function name
__STATIC_INLINE void LL_USART_TransmitData8
(USART_TypeDef * USARTx, uint8_t Value)
Function description
Write in Transmitter Data Register (Transmit Data value, 8 bits)
Parameters
USARTx: USART Instance
Value: between Min_Data=0x00 and Max_Data=0xFF
Return values
None
Reference Manual to
LL API cross
reference:
TDR TDR LL_USART_TransmitData8
LL_USART_TransmitData9
Function name
__STATIC_INLINE void LL_USART_TransmitData9
(USART_TypeDef * USARTx, uint16_t Value)
Function description
Write in Transmitter Data Register (Transmit Data value, 9 bits)
Parameters
USARTx: USART Instance
Value: between Min_Data=0x00 and Max_Data=0x1FF
Return values
None
Reference Manual to
LL API cross
reference:
TDR TDR LL_USART_TransmitData9
LL_USART_RequestAutoBaudRate
Function name
__STATIC_INLINE void LL_USART_RequestAutoBaudRate
(USART_TypeDef * USARTx)
Function description
Request an Automatic Baud Rate measurement on next received
data frame.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro
IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(USA
RTx) can be used to check whether or not Auto Baud Rate
detection feature is supported by the USARTx instance.
Reference Manual
to LL API cross
reference:
RQR ABRRQ LL_USART_RequestAutoBaudRate
LL_USART_RequestBreakSending
Function name
__STATIC_INLINE void LL_USART_RequestBreakSending
(USART_TypeDef * USARTx)
Function description
Request Break sending.
Parameters
USARTx: USART Instance
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Return values
None
Reference Manual to
LL API cross
reference:
RQR SBKRQ LL_USART_RequestBreakSending
LL_USART_RequestEnterMuteMode
Function name
__STATIC_INLINE void LL_USART_RequestEnterMuteMode
(USART_TypeDef * USARTx)
Function description
Put USART in mute mode and set the RWU flag.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
RQR MMRQ LL_USART_RequestEnterMuteMode
LL_USART_RequestRxDataFlush
Function name
__STATIC_INLINE void LL_USART_RequestRxDataFlush
(USART_TypeDef * USARTx)
Function description
Request a Receive Data flush.
Parameters
USARTx: USART Instance
Return values
None
Reference Manual to
LL API cross
reference:
RQR RXFRQ LL_USART_RequestRxDataFlush
LL_USART_RequestTxDataFlush
Function name
__STATIC_INLINE void LL_USART_RequestTxDataFlush
(USART_TypeDef * USARTx)
Function description
Request a Transmit data flush.
Parameters
USARTx: USART Instance
Return values
None
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
RQR TXFRQ LL_USART_RequestTxDataFlush
LL_USART_DeInit
Function name
ErrorStatus LL_USART_DeInit (USART_TypeDef * USARTx)
Function description
De-initialize USART registers (Registers restored to their default
values).
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Parameters
USARTx: USART Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: USART registers are de-initialized
ERROR: USART registers are not de-initialized
LL_USART_Init
Function name
ErrorStatus LL_USART_Init (USART_TypeDef * USARTx,
LL_USART_InitTypeDef * USART_InitStruct)
Function description
Initialize USART registers according to the specified parameters in
USART_InitStruct.
Parameters
USARTx: USART Instance
USART_InitStruct: pointer to a LL_USART_InitTypeDef
structure that contains the configuration information for the
specified USART peripheral.
Return values
An: ErrorStatus enumeration value:
SUCCESS: USART registers are initialized according to
USART_InitStruct content
ERROR: Problem occurred during USART Registers
initialization
Notes
As some bits in USART configuration registers can only be
written when the USART is disabled (USART_CR1_UE bit
=0), USART IP should be in disabled state prior calling this
function. Otherwise, ERROR result will be returned.
Baud rate value stored in USART_InitStruct BaudRate field,
should be valid (different from 0).
LL_USART_StructInit
Function name
void LL_USART_StructInit (LL_USART_InitTypeDef *
USART_InitStruct)
Function description
Set each LL_USART_InitTypeDef field to default value.
Parameters
USART_InitStruct: pointer to a LL_USART_InitTypeDef
structure whose fields will be set to default values.
Return values
None
LL_USART_ClockInit
Function name
ErrorStatus LL_USART_ClockInit (USART_TypeDef * USARTx,
LL_USART_ClockInitTypeDef * USART_ClockInitStruct)
Function description
Initialize USART Clock related settings according to the specified
parameters in the USART_ClockInitStruct.
Parameters
USARTx: USART Instance
USART_ClockInitStruct: pointer to a
LL_USART_ClockInitTypeDef structure that contains the
Clock configuration information for the specified USART
peripheral.
Return values
An: ErrorStatus enumeration value:
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SUCCESS: USART registers related to Clock settings
are initialized according to USART_ClockInitStruct
content
ERROR: Problem occurred during USART Registers
initialization
Notes
As some bits in USART configuration registers can only be
written when the USART is disabled (USART_CR1_UE bit
=0), USART IP should be in disabled state prior calling this
function. Otherwise, ERROR result will be returned.
LL_USART_ClockStructInit
Function name
void LL_USART_ClockStructInit
(LL_USART_ClockInitTypeDef * USART_ClockInitStruct)
Function description
Set each field of a LL_USART_ClockInitTypeDef type structure to
default value.
Parameters
USART_ClockInitStruct: pointer to a
LL_USART_ClockInitTypeDef structure whose fields will be
set to default values.
Return values
None
75.3 USART Firmware driver defines
75.3.1 USART
Address Length Detection
LL_USART_ADDRESS_DETECT_4B
4-bit address detection method selected
LL_USART_ADDRESS_DETECT_7B
7-bit address detection (in 8-bit data mode)
method selected
Autobaud Detection
LL_USART_AUTOBAUD_DETECT_ON_STARTBIT
Measurement of the start bit is
used to detect the baud rate
LL_USART_AUTOBAUD_DETECT_ON_FALLINGEDGE
Falling edge to falling edge
measurement. Received frame
must start with a single bit = 1 -
> Frame = Start10xxxxxx
LL_USART_AUTOBAUD_DETECT_ON_7F_FRAME
0x7F frame detection
LL_USART_AUTOBAUD_DETECT_ON_55_FRAME
0x55 frame detection
Binary Data Inversion
LL_USART_BINARY_LOGIC_POSITIVE
Logical data from the data register are
send/received in positive/direct logic. (1=H,
0=L)
LL_USART_BINARY_LOGIC_NEGATIVE
Logical data from the data register are
send/received in negative/inverse logic. (1=L,
0=H). The parity bit is also inverted.
Bit Order
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LL_USART_BITORDER_LSBFIRST
data is transmitted/received with data bit 0 first,
following the start bit
LL_USART_BITORDER_MSBFIRST
data is transmitted/received with the MSB first,
following the start bit
Clear Flags Defines
LL_USART_ICR_PECF
Parity error flag
LL_USART_ICR_FECF
Framing error flag
LL_USART_ICR_NCF
Noise detected flag
LL_USART_ICR_ORECF
Overrun error flag
LL_USART_ICR_IDLECF
Idle line detected flag
LL_USART_ICR_TCCF
Transmission complete flag
LL_USART_ICR_LBDCF
LIN break detection flag
LL_USART_ICR_CTSCF
CTS flag
LL_USART_ICR_RTOCF
Receiver timeout flag
LL_USART_ICR_EOBCF
End of block flag
LL_USART_ICR_CMCF
Character match flag
LL_USART_ICR_WUCF
Wakeup from Stop mode flag
Clock Signal
LL_USART_CLOCK_DISABLE
Clock signal not provided
LL_USART_CLOCK_ENABLE
Clock signal provided
Datawidth
LL_USART_DATAWIDTH_7B
7 bits word length : Start bit, 7 data bits, n stop bits
LL_USART_DATAWIDTH_8B
8 bits word length : Start bit, 8 data bits, n stop bits
LL_USART_DATAWIDTH_9B
9 bits word length : Start bit, 9 data bits, n stop bits
Driver Enable Polarity
LL_USART_DE_POLARITY_HIGH
DE signal is active high
LL_USART_DE_POLARITY_LOW
DE signal is active low
Communication Direction
LL_USART_DIRECTION_NONE
Transmitter and Receiver are disabled
LL_USART_DIRECTION_RX
Transmitter is disabled and Receiver is enabled
LL_USART_DIRECTION_TX
Transmitter is enabled and Receiver is disabled
LL_USART_DIRECTION_TX_RX
Transmitter and Receiver are enabled
DMA Register Data
LL_USART_DMA_REG_DATA_TRANSMIT
Get address of data register used for
transmission
LL_USART_DMA_REG_DATA_RECEIVE
Get address of data register used for
reception
Get Flags Defines
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LL_USART_ISR_PE
Parity error flag
LL_USART_ISR_FE
Framing error flag
LL_USART_ISR_NE
Noise detected flag
LL_USART_ISR_ORE
Overrun error flag
LL_USART_ISR_IDLE
Idle line detected flag
LL_USART_ISR_RXNE
Read data register not empty flag
LL_USART_ISR_TC
Transmission complete flag
LL_USART_ISR_TXE
Transmit data register empty flag
LL_USART_ISR_LBDF
LIN break detection flag
LL_USART_ISR_CTSIF
CTS interrupt flag
LL_USART_ISR_CTS
CTS flag
LL_USART_ISR_RTOF
Receiver timeout flag
LL_USART_ISR_EOBF
End of block flag
LL_USART_ISR_ABRE
Auto baud rate error flag
LL_USART_ISR_ABRF
Auto baud rate flag
LL_USART_ISR_BUSY
Busy flag
LL_USART_ISR_CMF
Character match flag
LL_USART_ISR_SBKF
Send break flag
LL_USART_ISR_RWU
Receiver wakeup from Mute mode flag
LL_USART_ISR_WUF
Wakeup from Stop mode flag
LL_USART_ISR_TEACK
Transmit enable acknowledge flag
LL_USART_ISR_REACK
Receive enable acknowledge flag
Hardware Control
LL_USART_HWCONTROL_NONE
CTS and RTS hardware flow control disabled
LL_USART_HWCONTROL_RTS
RTS output enabled, data is only requested when
there is space in the receive buffer
LL_USART_HWCONTROL_CTS
CTS mode enabled, data is only transmitted
when the nCTS input is asserted (tied to 0)
LL_USART_HWCONTROL_RTS_CTS
CTS and RTS hardware flow control enabled
IrDA Power
LL_USART_IRDA_POWER_NORMAL
IrDA normal power mode
LL_USART_IRDA_POWER_LOW
IrDA low power mode
IT Defines
LL_USART_CR1_IDLEIE
IDLE interrupt enable
LL_USART_CR1_RXNEIE
Read data register not empty interrupt enable
LL_USART_CR1_TCIE
Transmission complete interrupt enable
LL_USART_CR1_TXEIE
Transmit data register empty interrupt enable
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LL_USART_CR1_PEIE
Parity error
LL_USART_CR1_CMIE
Character match interrupt enable
LL_USART_CR1_RTOIE
Receiver timeout interrupt enable
LL_USART_CR1_EOBIE
End of Block interrupt enable
LL_USART_CR2_LBDIE
LIN break detection interrupt enable
LL_USART_CR3_EIE
Error interrupt enable
LL_USART_CR3_CTSIE
CTS interrupt enable
LL_USART_CR3_WUFIE
Wakeup from Stop mode interrupt enable
Last Clock Pulse
LL_USART_LASTCLKPULSE_NO_OUTPUT
The clock pulse of the last data bit is not
output to the SCLK pin
LL_USART_LASTCLKPULSE_OUTPUT
The clock pulse of the last data bit is output
to the SCLK pin
LIN Break Detection Length
LL_USART_LINBREAK_DETECT_10B
10-bit break detection method selected
LL_USART_LINBREAK_DETECT_11B
11-bit break detection method selected
Oversampling
LL_USART_OVERSAMPLING_16
Oversampling by 16
LL_USART_OVERSAMPLING_8
Oversampling by 8
Parity Control
LL_USART_PARITY_NONE
Parity control disabled
LL_USART_PARITY_EVEN
Parity control enabled and Even Parity is selected
LL_USART_PARITY_ODD
Parity control enabled and Odd Parity is selected
Clock Phase
LL_USART_PHASE_1EDGE
The first clock transition is the first data capture edge
LL_USART_PHASE_2EDGE
The second clock transition is the first data capture edge
Clock Polarity
LL_USART_POLARITY_LOW
Steady low value on SCLK pin outside transmission
window
LL_USART_POLARITY_HIGH
Steady high value on SCLK pin outside transmission
window
RX Pin Active Level Inversion
LL_USART_RXPIN_LEVEL_STANDARD
RX pin signal works using the standard logic
levels
LL_USART_RXPIN_LEVEL_INVERTED
RX pin signal values are inverted.
Stop Bits
LL_USART_STOPBITS_0_5
0.5 stop bit
LL_USART_STOPBITS_1
1 stop bit
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LL_USART_STOPBITS_1_5
1.5 stop bits
LL_USART_STOPBITS_2
2 stop bits
TX Pin Active Level Inversion
LL_USART_TXPIN_LEVEL_STANDARD
TX pin signal works using the standard logic
levels
LL_USART_TXPIN_LEVEL_INVERTED
TX pin signal values are inverted.
TX RX Pins Swap
LL_USART_TXRX_STANDARD
TX/RX pins are used as defined in standard pinout
LL_USART_TXRX_SWAPPED
TX and RX pins functions are swapped.
Wakeup
LL_USART_WAKEUP_IDLELINE
USART wake up from Mute mode on Idle Line
LL_USART_WAKEUP_ADDRESSMARK
USART wake up from Mute mode on Address
Mark
Wakeup Activation
LL_USART_WAKEUP_ON_ADDRESS
Wake up active on address match
LL_USART_WAKEUP_ON_STARTBIT
Wake up active on Start bit detection
LL_USART_WAKEUP_ON_RXNE
Wake up active on RXNE
Exported_Macros_Helper
__LL_USART_DIV_SAMPLING8
Description:
Compute USARTDIV value according to
Peripheral Clock and expected Baud Rate in 8
bits sampling mode (32 bits value of USARTDIV
is returned)
Parameters:
__PERIPHCLK__: Peripheral Clock frequency
used for USART instance
__BAUDRATE__: Baud rate value to achieve
Return value:
USARTDIV: value to be used for BRR register
filling in OverSampling_8 case
__LL_USART_DIV_SAMPLING16
Description:
Compute USARTDIV value according to
Peripheral Clock and expected Baud Rate in 16
bits sampling mode (32 bits value of USARTDIV
is returned)
Parameters:
__PERIPHCLK__: Peripheral Clock frequency
used for USART instance
__BAUDRATE__: Baud rate value to achieve
Return value:
USARTDIV: value to be used for BRR register
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filling in OverSampling_16 case
Common Write and read registers Macros
LL_USART_WriteReg
Description:
Write a value in USART register.
Parameters:
__INSTANCE__: USART Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_USART_ReadReg
Description:
Read a value in USART register.
Parameters:
__INSTANCE__: USART Instance
__REG__: Register to be read
Return value:
Register: value
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76 LL UTILS Generic Driver
76.1 UTILS Firmware driver registers structures
76.1.1 LL_UTILS_PLLInitTypeDef
Data Fields
uint32_t PLLMul
uint32_t PLLDiv
Field Documentation
uint32_t LL_UTILS_PLLInitTypeDef::PLLMul
Multiplication factor for PLL VCO input clock. This parameter can be a value of
RCC_LL_EC_PLL_MULThis feature can be modified afterwards using unitary
function LL_RCC_PLL_ConfigDomain_SYS().
uint32_t LL_UTILS_PLLInitTypeDef::PLLDiv
Division factor for PLL VCO output clock. This parameter can be a value of
RCC_LL_EC_PLL_DIVThis feature can be modified afterwards using unitary function
LL_RCC_PLL_ConfigDomain_SYS().
76.1.2 LL_UTILS_ClkInitTypeDef
Data Fields
uint32_t AHBCLKDivider
uint32_t APB1CLKDivider
uint32_t APB2CLKDivider
Field Documentation
uint32_t LL_UTILS_ClkInitTypeDef::AHBCLKDivider
The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
This parameter can be a value of RCC_LL_EC_SYSCLK_DIVThis feature can be
modified afterwards using unitary function LL_RCC_SetAHBPrescaler().
uint32_t LL_UTILS_ClkInitTypeDef::APB1CLKDivider
The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of RCC_LL_EC_APB1_DIVThis feature can be
modified afterwards using unitary function LL_RCC_SetAPB1Prescaler().
uint32_t LL_UTILS_ClkInitTypeDef::APB2CLKDivider
The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of RCC_LL_EC_APB2_DIVThis feature can be
modified afterwards using unitary function LL_RCC_SetAPB2Prescaler().
76.2 UTILS Firmware driver API description
76.2.1 System Configuration functions
System, AHB and APB buses clocks configuration
The maximum frequency of the SYSCLK, HCLK, PCLK1 and PCLK2 is 32000000 Hz.
This section contains the following APIs:
LL_SetSystemCoreClock()
LL_PLL_ConfigSystemClock_HSI()
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LL_PLL_ConfigSystemClock_HSE()
76.2.2 Detailed description of functions
LL_GetUID_Word0
Function name
__STATIC_INLINE uint32_t LL_GetUID_Word0 (void )
Function description
Get Word0 of the unique device identifier (UID based on 96 bits)
Return values
UID[31:0]:
LL_GetUID_Word1
Function name
__STATIC_INLINE uint32_t LL_GetUID_Word1 (void )
Function description
Get Word1 of the unique device identifier (UID based on 96 bits)
Return values
UID[63:32]:
LL_GetUID_Word2
Function name
__STATIC_INLINE uint32_t LL_GetUID_Word2 (void )
Function description
Get Word2 of the unique device identifier (UID based on 96 bits)
Return values
UID[95:64]:
LL_GetFlashSize
Function name
__STATIC_INLINE uint32_t LL_GetFlashSize (void )
Function description
Get Flash memory size.
Return values
FLASH_SIZE[15:0]: Flash memory size
Notes
This bitfield indicates the size of the device Flash memory
expressed in Kbytes. As an example, 0x040 corresponds to
64 Kbytes.
LL_InitTick
Function name
__STATIC_INLINE void LL_InitTick (uint32_t HCLKFrequency,
uint32_t Ticks)
Function description
This function configures the Cortex-M SysTick source of the
timebase.
Parameters
HCLKFrequency: HCLK frequency in Hz (can be calculated
thanks to RCC helper macro)
Ticks: Number of ticks
Return values
None
Notes
When a RTOS is used, it is recommended to avoid changing
the SysTick configuration by calling this function, for a delay
use rather osDelay RTOS service.
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LL_Init1msTick
Function name
void LL_Init1msTick (uint32_t HCLKFrequency)
Function description
This function configures the Cortex-M SysTick source to have 1ms
timebase.
Parameters
HCLKFrequency: HCLK frequency in Hz
Return values
None
Notes
When a RTOS is used, it is recommended to avoid changing
the Systick configuration by calling this function, for a delay
use rather osDelay RTOS service.
HCLK frequency can be calculated thanks to RCC helper
macro or function LL_RCC_GetSystemClocksFreq
LL_mDelay
Function name
void LL_mDelay (uint32_t Delay)
Function description
This function provides accurate delay (in milliseconds) based on
SysTick counter flag.
Parameters
Delay: specifies the delay time length, in milliseconds.
Return values
None
Notes
When a RTOS is used, it is recommended to avoid using
blocking delay and use rather osDelay service.
To respect 1ms timebase, user should call LL_Init1msTick
function which will configure Systick to 1ms
LL_SetSystemCoreClock
Function name
void LL_SetSystemCoreClock (uint32_t HCLKFrequency)
Function description
This function sets directly SystemCoreClock CMSIS variable.
Parameters
HCLKFrequency: HCLK frequency in Hz (can be calculated
thanks to RCC helper macro)
Return values
None
Notes
Variable can be calculated also through
SystemCoreClockUpdate function.
LL_PLL_ConfigSystemClock_HSI
Function name
ErrorStatus LL_PLL_ConfigSystemClock_HSI
(LL_UTILS_PLLInitTypeDef * UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef * UTILS_ClkInitStruct)
Function description
This function configures system clock with HSI as clock source of
the PLL.
Parameters
UTILS_PLLInitStruct: pointer to a
LL_UTILS_PLLInitTypeDef structure that contains the
configuration information for the PLL.
UTILS_ClkInitStruct: pointer to a LL_UTILS_ClkInitTypeDef
structure that contains the configuration information for the
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BUS prescalers.
Return values
An: ErrorStatus enumeration value:
SUCCESS: Max frequency configuration done
ERROR: Max frequency configuration not done
Notes
The application need to ensure that PLL is disabled.
Function is based on the following formula: PLL output
frequency = ((HSI frequency * PLLMul) / PLLDiv)PLLMul: The
application software must set correctly the PLL multiplication
factor to avoid exceeding 96 MHz as PLLVCO when the
product is in range 1,48 MHz as PLLVCO when the product is
in range 2,24 MHz when the product is in range 3
FLASH latency can be modified through this function.
LL_PLL_ConfigSystemClock_HSE
Function name
ErrorStatus LL_PLL_ConfigSystemClock_HSE (uint32_t
HSEFrequency, uint32_t HSEBypass,
LL_UTILS_PLLInitTypeDef * UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef * UTILS_ClkInitStruct)
Function description
This function configures system clock with HSE as clock source of
the PLL.
Parameters
HSEFrequency: Value between Min_Data = 1000000 and
Max_Data = 24000000
HSEBypass: This parameter can be one of the following
values:
LL_UTILS_HSEBYPASS_ON
LL_UTILS_HSEBYPASS_OFF
UTILS_PLLInitStruct: pointer to a
LL_UTILS_PLLInitTypeDef structure that contains the
configuration information for the PLL.
UTILS_ClkInitStruct: pointer to a LL_UTILS_ClkInitTypeDef
structure that contains the configuration information for the
BUS prescalers.
Return values
An: ErrorStatus enumeration value:
SUCCESS: Max frequency configuration done
ERROR: Max frequency configuration not done
Notes
The application need to ensure that PLL is disabled.
Function is based on the following formula: PLL output
frequency = ((HSE frequency * PLLMul) / PLLDiv)PLLMul:
The application software must set correctly the PLL
multiplication factor to avoid exceeding 96 MHz as PLLVCO
when the product is in range 1,48 MHz as PLLVCO when the
product is in range 2,24 MHz when the product is in range 3
FLASH latency can be modified through this function.
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76.3 UTILS Firmware driver defines
76.3.1 UTILS
HSE Bypass activation
LL_UTILS_HSEBYPASS_OFF
HSE Bypass is not enabled
LL_UTILS_HSEBYPASS_ON
HSE Bypass is enabled
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77.1 WWDG Firmware driver API description
77.1.1 Detailed description of functions
LL_WWDG_Enable
Function name
__STATIC_INLINE void LL_WWDG_Enable (WWDG_TypeDef *
WWDGx)
Function description
Enable Window Watchdog.
Parameters
WWDGx: WWDG Instance
Return values
None
Notes
It is enabled by setting the WDGA bit in the WWDG_CR
register, then it cannot be disabled again except by a reset.
This bit is set by software and only cleared by hardware after
a reset. When WDGA = 1, the watchdog can generate a
reset.
Reference Manual to
LL API cross
reference:
CR WDGA LL_WWDG_Enable
LL_WWDG_IsEnabled
Function name
__STATIC_INLINE uint32_t LL_WWDG_IsEnabled
(WWDG_TypeDef * WWDGx)
Function description
Checks if Window Watchdog is enabled.
Parameters
WWDGx: WWDG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CR WDGA LL_WWDG_IsEnabled
LL_WWDG_SetCounter
Function name
__STATIC_INLINE void LL_WWDG_SetCounter
(WWDG_TypeDef * WWDGx, uint32_t Counter)
Function description
Set the Watchdog counter value to provided value (7-bits T[6:0])
Parameters
WWDGx: WWDG Instance
Counter: 0..0x7F (7 bit counter value)
Return values
None
Notes
When writing to the WWDG_CR register, always write 1 in the
MSB b6 to avoid generating an immediate reset This counter
is decremented every (4096 x 2expWDGTB) PCLK cycles A
reset is produced when it rolls over from 0x40 to 0x3F (bit T6
LL WWDG Generic Driver
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becomes cleared) Setting the counter lower then 0x40 causes
an immediate reset (if WWDG enabled)
Reference Manual to
LL API cross
reference:
CR T LL_WWDG_SetCounter
LL_WWDG_GetCounter
Function name
__STATIC_INLINE uint32_t LL_WWDG_GetCounter
(WWDG_TypeDef * WWDGx)
Function description
Return current Watchdog Counter Value (7 bits counter value)
Parameters
WWDGx: WWDG Instance
Return values
7: bit Watchdog Counter value
Reference Manual to
LL API cross
reference:
CR T LL_WWDG_GetCounter
LL_WWDG_SetPrescaler
Function name
__STATIC_INLINE void LL_WWDG_SetPrescaler
(WWDG_TypeDef * WWDGx, uint32_t Prescaler)
Function description
Set the timebase of the prescaler (WDGTB).
Parameters
WWDGx: WWDG Instance
Prescaler: This parameter can be one of the following
values:
LL_WWDG_PRESCALER_1
LL_WWDG_PRESCALER_2
LL_WWDG_PRESCALER_4
LL_WWDG_PRESCALER_8
Return values
None
Notes
Prescaler is used to apply ratio on PCLK clock, so that
Watchdog counter is decremented every (4096 x
2expWDGTB) PCLK cycles
Reference Manual to
LL API cross
reference:
CFR WDGTB LL_WWDG_SetPrescaler
LL_WWDG_GetPrescaler
Function name
__STATIC_INLINE uint32_t LL_WWDG_GetPrescaler
(WWDG_TypeDef * WWDGx)
Function description
Return current Watchdog Prescaler Value.
Parameters
WWDGx: WWDG Instance
Return values
Returned: value can be one of the following values:
LL_WWDG_PRESCALER_1
LL_WWDG_PRESCALER_2
LL_WWDG_PRESCALER_4
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LL_WWDG_PRESCALER_8
Reference Manual to
LL API cross
reference:
CFR WDGTB LL_WWDG_GetPrescaler
LL_WWDG_SetWindow
Function name
__STATIC_INLINE void LL_WWDG_SetWindow
(WWDG_TypeDef * WWDGx, uint32_t Window)
Function description
Set the Watchdog Window value to be compared to the
downcounter (7-bits W[6:0]).
Parameters
WWDGx: WWDG Instance
Window: 0x00..0x7F (7 bit Window value)
Return values
None
Notes
This window value defines when write in the WWDG_CR
register to program Watchdog counter is allowed. Watchdog
counter value update must occur only when the counter value
is lower than the Watchdog window register value. Otherwise,
a MCU reset is generated if the 7-bit Watchdog counter value
(in the control register) is refreshed before the downcounter
has reached the watchdog window register value. Physically
is possible to set the Window lower then 0x40 but it is not
recommended. To generate an immediate reset, it is possible
to set the Counter lower than 0x40.
Reference Manual to
LL API cross
reference:
CFR W LL_WWDG_SetWindow
LL_WWDG_GetWindow
Function name
__STATIC_INLINE uint32_t LL_WWDG_GetWindow
(WWDG_TypeDef * WWDGx)
Function description
Return current Watchdog Window Value (7 bits value)
Parameters
WWDGx: WWDG Instance
Return values
7: bit Watchdog Window value
Reference Manual to
LL API cross
reference:
CFR W LL_WWDG_GetWindow
LL_WWDG_IsActiveFlag_EWKUP
Function name
__STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP
(WWDG_TypeDef * WWDGx)
Function description
Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
Parameters
WWDGx: WWDG Instance
Return values
State: of bit (1 or 0).
Notes
This bit is set by hardware when the counter has reached the
LL WWDG Generic Driver
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value 0x40. It must be cleared by software by writing 0. A
write of 1 has no effect. This bit is also set if the interrupt is
not enabled.
Reference Manual to
LL API cross
reference:
SR EWIF LL_WWDG_IsActiveFlag_EWKUP
LL_WWDG_ClearFlag_EWKUP
Function name
__STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP
(WWDG_TypeDef * WWDGx)
Function description
Clear WWDG Early Wakeup Interrupt Flag (EWIF)
Parameters
WWDGx: WWDG Instance
Return values
None
Reference Manual to
LL API cross
reference:
SR EWIF LL_WWDG_ClearFlag_EWKUP
LL_WWDG_EnableIT_EWKUP
Function name
__STATIC_INLINE void LL_WWDG_EnableIT_EWKUP
(WWDG_TypeDef * WWDGx)
Function description
Enable the Early Wakeup Interrupt.
Parameters
WWDGx: WWDG Instance
Return values
None
Notes
When set, an interrupt occurs whenever the counter reaches
value 0x40. This interrupt is only cleared by hardware after a
reset
Reference Manual to
LL API cross
reference:
CFR EWI LL_WWDG_EnableIT_EWKUP
LL_WWDG_IsEnabledIT_EWKUP
Function name
__STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP
(WWDG_TypeDef * WWDGx)
Function description
Check if Early Wakeup Interrupt is enabled.
Parameters
WWDGx: WWDG Instance
Return values
State: of bit (1 or 0).
Reference Manual to
LL API cross
reference:
CFR EWI LL_WWDG_IsEnabledIT_EWKUP
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77.2 WWDG Firmware driver defines
77.2.1 WWDG
IT Defines
LL_WWDG_CFR_EWI
PRESCALER
LL_WWDG_PRESCALER_1
WWDG counter clock = (PCLK1/4096)/1
LL_WWDG_PRESCALER_2
WWDG counter clock = (PCLK1/4096)/2
LL_WWDG_PRESCALER_4
WWDG counter clock = (PCLK1/4096)/4
LL_WWDG_PRESCALER_8
WWDG counter clock = (PCLK1/4096)/8
Common Write and read registers macros
LL_WWDG_WriteReg
Description:
Write a value in WWDG register.
Parameters:
__INSTANCE__: WWDG Instance
__REG__: Register to be written
__VALUE__: Value to be written in the register
Return value:
None
LL_WWDG_ReadReg
Description:
Read a value in WWDG register.
Parameters:
__INSTANCE__: WWDG Instance
__REG__: Register to be read
Return value:
Register: value
Correspondence between API registers and API
low-layer driver functions
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78 Correspondence between API registers and API low-
layer driver functions
78.1 ADC
Table 25: Correspondence between ADC registers and ADC low-layer driver functions
Register
Field
Function
CALFACT
CALFACT
LL_ADC_GetCalibrationFactor
LL_ADC_SetCalibrationFactor
CCR
LFMEN
LL_ADC_GetCommonFrequencyMode
LL_ADC_SetCommonFrequencyMode
PRESC
LL_ADC_GetCommonClock
LL_ADC_SetCommonClock
TSEN
LL_ADC_GetCommonPathInternalCh
LL_ADC_SetCommonPathInternalCh
VLCDEN
LL_ADC_GetCommonPathInternalCh
LL_ADC_SetCommonPathInternalCh
VREFEN
LL_ADC_GetCommonPathInternalCh
LL_ADC_SetCommonPathInternalCh
CFGR1
ALIGN
LL_ADC_GetDataAlignment
LL_ADC_SetDataAlignment
AUTOFF
LL_ADC_GetLowPowerMode
LL_ADC_SetLowPowerMode
AWDCH
LL_ADC_GetAnalogWDMonitChannels
LL_ADC_SetAnalogWDMonitChannels
AWDEN
LL_ADC_GetAnalogWDMonitChannels
LL_ADC_SetAnalogWDMonitChannels
AWDSGL
LL_ADC_GetAnalogWDMonitChannels
LL_ADC_SetAnalogWDMonitChannels
CONT
LL_ADC_REG_GetContinuousMode
LL_ADC_REG_SetContinuousMode
DISCEN
LL_ADC_REG_GetSequencerDiscont
LL_ADC_REG_SetSequencerDiscont
DMACFG
LL_ADC_REG_GetDMATransfer
LL_ADC_REG_SetDMATransfer
DMAEN
LL_ADC_REG_GetDMATransfer
LL_ADC_REG_SetDMATransfer
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Register
Field
Function
EXTEN
LL_ADC_REG_GetTriggerEdge
LL_ADC_REG_GetTriggerSource
LL_ADC_REG_IsTriggerSourceSWStart
LL_ADC_REG_SetTriggerEdge
LL_ADC_REG_SetTriggerSource
EXTSEL
LL_ADC_REG_GetTriggerSource
LL_ADC_REG_SetTriggerSource
OVRMOD
LL_ADC_REG_GetOverrun
LL_ADC_REG_SetOverrun
RES
LL_ADC_GetResolution
LL_ADC_SetResolution
SCANDIR
LL_ADC_REG_GetSequencerScanDirection
LL_ADC_REG_SetSequencerScanDirection
WAIT
LL_ADC_GetLowPowerMode
LL_ADC_SetLowPowerMode
CFGR2
CKMODE
LL_ADC_GetClock
LL_ADC_SetClock
OVSE
LL_ADC_GetOverSamplingScope
LL_ADC_SetOverSamplingScope
OVSR
LL_ADC_ConfigOverSamplingRatioShift
LL_ADC_GetOverSamplingRatio
OVSS
LL_ADC_ConfigOverSamplingRatioShift
LL_ADC_GetOverSamplingShift
TOVS
LL_ADC_GetOverSamplingDiscont
LL_ADC_SetOverSamplingDiscont
CHSELR
CHSEL0
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL1
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL10
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
LL_ADC_REG_SetSequencerChannels
CHSEL11
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL12
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL13
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL14
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL15
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL16
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL17
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL18
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL2
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
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Register
Field
Function
LL_ADC_REG_SetSequencerChannels
CHSEL3
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL4
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL5
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL6
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL7
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL8
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CHSEL9
LL_ADC_REG_GetSequencerChannels
LL_ADC_REG_SetSequencerChAdd
LL_ADC_REG_SetSequencerChRem
LL_ADC_REG_SetSequencerChannels
CR
ADCAL
LL_ADC_IsCalibrationOnGoing
LL_ADC_StartCalibration
ADDIS
LL_ADC_Disable
LL_ADC_IsDisableOngoing
ADEN
LL_ADC_Enable
LL_ADC_IsEnabled
ADSTART
LL_ADC_REG_IsConversionOngoing
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
LL_ADC_REG_StartConversion
ADSTP
LL_ADC_REG_IsStopConversionOngoing
LL_ADC_REG_StopConversion
ADVREGEN
LL_ADC_DisableInternalRegulator
LL_ADC_EnableInternalRegulator
LL_ADC_IsInternalRegulatorEnabled
DR
DATA
LL_ADC_DMA_GetRegAddr
LL_ADC_REG_ReadConversionData10
LL_ADC_REG_ReadConversionData12
LL_ADC_REG_ReadConversionData32
LL_ADC_REG_ReadConversionData6
LL_ADC_REG_ReadConversionData8
IER
ADRDYIE
LL_ADC_DisableIT_ADRDY
LL_ADC_EnableIT_ADRDY
LL_ADC_IsEnabledIT_ADRDY
AWDIE
LL_ADC_DisableIT_AWD1
LL_ADC_EnableIT_AWD1
LL_ADC_IsEnabledIT_AWD1
EOCALIE
LL_ADC_DisableIT_EOCAL
LL_ADC_EnableIT_EOCAL
LL_ADC_IsEnabledIT_EOCAL
EOCIE
LL_ADC_DisableIT_EOC
LL_ADC_EnableIT_EOC
LL_ADC_IsEnabledIT_EOC
EOSEQIE
LL_ADC_DisableIT_EOS
LL_ADC_EnableIT_EOS
LL_ADC_IsEnabledIT_EOS
EOSMPIE
LL_ADC_DisableIT_EOSMP
LL_ADC_EnableIT_EOSMP
LL_ADC_IsEnabledIT_EOSMP
OVRIE
LL_ADC_DisableIT_OVR
LL_ADC_EnableIT_OVR
LL_ADC_IsEnabledIT_OVR
ISR
ADRDY
LL_ADC_ClearFlag_ADRDY
LL_ADC_IsActiveFlag_ADRDY
AWD
LL_ADC_ClearFlag_AWD1
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Register
Field
Function
LL_ADC_IsActiveFlag_AWD1
EOC
LL_ADC_ClearFlag_EOC
LL_ADC_IsActiveFlag_EOC
EOCAL
LL_ADC_ClearFlag_EOCAL
LL_ADC_IsActiveFlag_EOCAL
EOSEQ
LL_ADC_ClearFlag_EOS
LL_ADC_IsActiveFlag_EOS
EOSMP
LL_ADC_ClearFlag_EOSMP
LL_ADC_IsActiveFlag_EOSMP
OVR
LL_ADC_ClearFlag_OVR
LL_ADC_IsActiveFlag_OVR
SMPR
SMP
LL_ADC_GetSamplingTimeCommonChannels
LL_ADC_SetSamplingTimeCommonChannels
TR
HT
LL_ADC_ConfigAnalogWDThresholds
LL_ADC_GetAnalogWDThresholds
LL_ADC_SetAnalogWDThresholds
LT
LL_ADC_ConfigAnalogWDThresholds
LL_ADC_GetAnalogWDThresholds
LL_ADC_SetAnalogWDThresholds
78.2 BUS
Table 26: Correspondence between BUS registers and BUS low-layer driver functions
Register
Field
Function
AHBENR
CRCEN
LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
CRYPEN
LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
DMAEN
LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
MIFEN
LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
RNGEN
LL_AHB1_GRP1_DisableClock
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
TSCEN
LL_AHB1_GRP1_DisableClock
LL_AHB1_GRP1_EnableClock
LL_AHB1_GRP1_IsEnabledClock
AHBRSTR
CRCRST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
CRYPRST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
DMARST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
MIFRST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
RNGRST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
TSCRST
LL_AHB1_GRP1_ForceReset
LL_AHB1_GRP1_ReleaseReset
AHBSMENR
CRCSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
CRYPSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
DMASMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
MIFSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
RNGSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
SRAMSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
TSCSMEN
LL_AHB1_GRP1_DisableClockSleep
LL_AHB1_GRP1_EnableClockSleep
APB1ENR
CRSEN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
DACEN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
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Register
Field
Function
LL_APB1_GRP1_IsEnabledClock
I2C1EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
I2C2EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
I2C3EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
LCDEN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
LPTIM1EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
LPUART1EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
PWREN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
SPI2EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
TIM2EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
TIM3EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
TIM6EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
TIM7EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
LL_APB1_GRP1_IsEnabledClock
USART2EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
USART4EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
USART5EN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
USBEN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
WWDGEN
LL_APB1_GRP1_DisableClock
LL_APB1_GRP1_EnableClock
LL_APB1_GRP1_IsEnabledClock
APB1RSTR
CRSRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
DACRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
I2C1RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
I2C2RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
I2C3RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
LCDRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
LPTIM1RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
LPUART1RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
PWRRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
SPI2RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
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Register
Field
Function
TIM2RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
TIM3RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
TIM6RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
TIM7RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
USART2RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
USART4RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
USART5RST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
USBRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
WWDGRST
LL_APB1_GRP1_ForceReset
LL_APB1_GRP1_ReleaseReset
APB1SMENR
CRSSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
DACSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
I2C1SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
I2C2SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
I2C3SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
LCDSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
LPTIM1SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
LPUART1SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
PWRSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
SPI2SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
TIM2SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
TIM3SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
TIM6SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
TIM7SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
USART2SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
USART4SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
USART5SMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
USBSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
WWDGSMEN
LL_APB1_GRP1_DisableClockSleep
LL_APB1_GRP1_EnableClockSleep
APB2ENR
ADCEN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
DBGEN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
FWEN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
SPI1EN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
SYSCFGEN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
TIM21EN
LL_APB2_GRP1_DisableClock
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1399/1466
Register
Field
Function
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
TIM22EN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
USART1EN
LL_APB2_GRP1_DisableClock
LL_APB2_GRP1_EnableClock
LL_APB2_GRP1_IsEnabledClock
APB2RSTR
ADCRST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
DBGRST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
SPI1RST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
SYSCFGRST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
TIM21RST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
TIM22RST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
USART1RST
LL_APB2_GRP1_ForceReset
LL_APB2_GRP1_ReleaseReset
APB2SMENR
ADCSMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
DBGSMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
SPI1SMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
SYSCFGSMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
TIM21SMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
TIM22SMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
USART1SMEN
LL_APB2_GRP1_DisableClockSleep
LL_APB2_GRP1_EnableClockSleep
Correspondence between API registers and API
low-layer driver functions
UM1749
1400/1466
DocID026232 Rev 6
Register
Field
Function
IOPENR
GPIOAEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
GPIOBEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
GPIOCEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
GPIODEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
GPIOEEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
GPIOHEN
LL_IOP_GRP1_DisableClock
LL_IOP_GRP1_EnableClock
LL_IOP_GRP1_IsEnabledClock
IOPRSTR
GPIOASMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
GPIOBSMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
GPIOCSMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
GPIODSMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
GPIOESMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
GPIOHSMEN
LL_IOP_GRP1_ForceReset
LL_IOP_GRP1_ReleaseReset
IOPSMENR
GPIOARST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
GPIOBRST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
GPIOCRST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1401/1466
Register
Field
Function
GPIODRST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
GPIOERST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
GPIOHRST
LL_IOP_GRP1_DisableClockSleep
LL_IOP_GRP1_EnableClockSleep
78.3 COMP
Table 27: Correspondence between COMP registers and COMP low-layer driver functions
Register
Field
Function
COMP
COMP1POLARITY
LL_COMP_GetOutputPolarity
LL_COMP_SetOutputPolarity
COMP1_CSR
COMP1EN
LL_COMP_Disable
LL_COMP_Enable
LL_COMP_IsEnabled
COMP1INNSEL
LL_COMP_GetInputMinus
LL_COMP_SetInputMinus
COMP1LOCK
LL_COMP_IsLocked
LL_COMP_Lock
COMP1LPTIMIN1
LL_COMP_GetOutputLPTIM
LL_COMP_SetOutputLPTIM
COMP1VALUE
LL_COMP_ReadOutputLevel
COMP1WM
LL_COMP_GetCommonWindowMode
LL_COMP_SetCommonWindowMode
COMP2_CSR
COMP2EN
LL_COMP_Disable
LL_COMP_Enable
LL_COMP_IsEnabled
COMP2INNSEL
LL_COMP_ConfigInputs
LL_COMP_GetInputMinus
LL_COMP_SetInputMinus
COMP2INPSEL
LL_COMP_ConfigInputs
LL_COMP_GetInputPlus
LL_COMP_SetInputPlus
COMP2LOCK
LL_COMP_IsLocked
LL_COMP_Lock
COMP2LPTIMIN1
LL_COMP_GetOutputLPTIM
Correspondence between API registers and API
low-layer driver functions
UM1749
1402/1466
DocID026232 Rev 6
Register
Field
Function
LL_COMP_SetOutputLPTIM
COMP2LPTIMIN2
LL_COMP_GetOutputLPTIM
LL_COMP_SetOutputLPTIM
COMP2SPEED
LL_COMP_GetPowerMode
LL_COMP_SetPowerMode
COMP2VALUE
LL_COMP_ReadOutputLevel
78.4 CORTEX
Table 28: Correspondence between CORTEX registers and CORTEX low-layer driver functions
Register
Field
Function
MPU_CTRL
ENABLE
LL_MPU_Disable
LL_MPU_Enable
LL_MPU_IsEnabled
MPU_RASR
AP
LL_MPU_ConfigRegion
B
LL_MPU_ConfigRegion
C
LL_MPU_ConfigRegion
ENABLE
LL_MPU_DisableRegion
LL_MPU_EnableRegion
S
LL_MPU_ConfigRegion
SIZE
LL_MPU_ConfigRegion
XN
LL_MPU_ConfigRegion
MPU_RBAR
ADDR
LL_MPU_ConfigRegion
REGION
LL_MPU_ConfigRegion
MPU_RNR
REGION
LL_MPU_ConfigRegion
LL_MPU_DisableRegion
SCB_CPUID
ARCHITECTURE
LL_CPUID_GetArchitecture
IMPLEMENTER
LL_CPUID_GetImplementer
PARTNO
LL_CPUID_GetParNo
REVISION
LL_CPUID_GetRevision
VARIANT
LL_CPUID_GetVariant
SCB_SCR
SEVEONPEND
LL_LPM_DisableEventOnPend
LL_LPM_EnableEventOnPend
SLEEPDEEP
LL_LPM_EnableDeepSleep
LL_LPM_EnableSleep
SLEEPONEXIT
LL_LPM_DisableSleepOnExit
LL_LPM_EnableSleepOnExit
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1403/1466
Register
Field
Function
STK_CTRL
CLKSOURCE
LL_SYSTICK_GetClkSource
LL_SYSTICK_SetClkSource
COUNTFLAG
LL_SYSTICK_IsActiveCounterFlag
TICKINT
LL_SYSTICK_DisableIT
LL_SYSTICK_EnableIT
LL_SYSTICK_IsEnabledIT
78.5 CRC
Table 29: Correspondence between CRC registers and CRC low-layer driver functions
Register
Field
Function
CR
POLYSIZE
LL_CRC_GetPolynomialSize
LL_CRC_SetPolynomialSize
RESET
LL_CRC_ResetCRCCalculationUnit
REV_IN
LL_CRC_GetInputDataReverseMode
LL_CRC_SetInputDataReverseMode
REV_OUT
LL_CRC_GetOutputDataReverseMode
LL_CRC_SetOutputDataReverseMode
DR
DR
LL_CRC_FeedData16
LL_CRC_FeedData32
LL_CRC_FeedData8
LL_CRC_ReadData16
LL_CRC_ReadData32
LL_CRC_ReadData7
LL_CRC_ReadData8
IDR
IDR
LL_CRC_Read_IDR
LL_CRC_Write_IDR
INIT
INIT
LL_CRC_GetInitialData
LL_CRC_SetInitialData
POL
POL
LL_CRC_GetPolynomialCoef
LL_CRC_SetPolynomialCoef
78.6 CRS
Table 30: Correspondence between CRS registers and CRS low-layer driver functions
Register
Field
Function
CFGR
FELIM
LL_CRS_ConfigSynchronization
Correspondence between API registers and API
low-layer driver functions
UM1749
1404/1466
DocID026232 Rev 6
Register
Field
Function
LL_CRS_GetFreqErrorLimit
LL_CRS_SetFreqErrorLimit
RELOAD
LL_CRS_ConfigSynchronization
LL_CRS_GetReloadCounter
LL_CRS_SetReloadCounter
SYNCDIV
LL_CRS_ConfigSynchronization
LL_CRS_GetSyncDivider
LL_CRS_SetSyncDivider
SYNCPOL
LL_CRS_ConfigSynchronization
LL_CRS_GetSyncPolarity
LL_CRS_SetSyncPolarity
SYNCSRC
LL_CRS_ConfigSynchronization
LL_CRS_GetSyncSignalSource
LL_CRS_SetSyncSignalSource
CR
AUTOTRIMEN
LL_CRS_DisableAutoTrimming
LL_CRS_EnableAutoTrimming
LL_CRS_IsEnabledAutoTrimming
CEN
LL_CRS_DisableFreqErrorCounter
LL_CRS_EnableFreqErrorCounter
LL_CRS_IsEnabledFreqErrorCounter
ERRIE
LL_CRS_DisableIT_ERR
LL_CRS_EnableIT_ERR
LL_CRS_IsEnabledIT_ERR
ESYNCIE
LL_CRS_DisableIT_ESYNC
LL_CRS_EnableIT_ESYNC
LL_CRS_IsEnabledIT_ESYNC
SWSYNC
LL_CRS_GenerateEvent_SWSYNC
SYNCOKIE
LL_CRS_DisableIT_SYNCOK
LL_CRS_EnableIT_SYNCOK
LL_CRS_IsEnabledIT_SYNCOK
SYNCWARNIE
LL_CRS_DisableIT_SYNCWARN
LL_CRS_EnableIT_SYNCWARN
LL_CRS_IsEnabledIT_SYNCWARN
TRIM
LL_CRS_ConfigSynchronization
LL_CRS_GetHSI48SmoothTrimming
LL_CRS_SetHSI48SmoothTrimming
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1405/1466
Register
Field
Function
ICR
ERRC
LL_CRS_ClearFlag_ERR
ESYNCC
LL_CRS_ClearFlag_ESYNC
SYNCOKC
LL_CRS_ClearFlag_SYNCOK
SYNCWARNC
LL_CRS_ClearFlag_SYNCWARN
ISR
ERRF
LL_CRS_IsActiveFlag_ERR
ESYNCF
LL_CRS_IsActiveFlag_ESYNC
FECAP
LL_CRS_GetFreqErrorCapture
FEDIR
LL_CRS_GetFreqErrorDirection
SYNCERR
LL_CRS_IsActiveFlag_SYNCERR
SYNCMISS
LL_CRS_IsActiveFlag_SYNCMISS
SYNCOKF
LL_CRS_IsActiveFlag_SYNCOK
SYNCWARNF
LL_CRS_IsActiveFlag_SYNCWARN
TRIMOVF
LL_CRS_IsActiveFlag_TRIMOVF
78.7 DAC
Table 31: Correspondence between DAC registers and DAC low-layer driver functions
Register
Field
Function
CR
BOFF1
LL_DAC_GetOutputBuffer
LL_DAC_SetOutputBuffer
BOFF2
LL_DAC_GetOutputBuffer
LL_DAC_SetOutputBuffer
DMAEN1
LL_DAC_DisableDMAReq
LL_DAC_EnableDMAReq
LL_DAC_IsDMAReqEnabled
DMAEN2
LL_DAC_DisableDMAReq
LL_DAC_EnableDMAReq
LL_DAC_IsDMAReqEnabled
DMAUDRIE1
LL_DAC_DisableIT_DMAUDR1
LL_DAC_EnableIT_DMAUDR1
LL_DAC_IsEnabledIT_DMAUDR1
DMAUDRIE2
LL_DAC_DisableIT_DMAUDR2
LL_DAC_EnableIT_DMAUDR2
LL_DAC_IsEnabledIT_DMAUDR2
EN1
LL_DAC_Disable
LL_DAC_Enable
LL_DAC_IsEnabled
Correspondence between API registers and API
low-layer driver functions
UM1749
1406/1466
DocID026232 Rev 6
Register
Field
Function
EN2
LL_DAC_Disable
LL_DAC_Enable
LL_DAC_IsEnabled
MAMP1
LL_DAC_GetWaveNoiseLFSR
LL_DAC_GetWaveTriangleAmplitude
LL_DAC_SetWaveNoiseLFSR
LL_DAC_SetWaveTriangleAmplitude
MAMP2
LL_DAC_GetWaveNoiseLFSR
LL_DAC_GetWaveTriangleAmplitude
LL_DAC_SetWaveNoiseLFSR
LL_DAC_SetWaveTriangleAmplitude
TEN1
LL_DAC_DisableTrigger
LL_DAC_EnableTrigger
LL_DAC_IsTriggerEnabled
TEN2
LL_DAC_DisableTrigger
LL_DAC_EnableTrigger
LL_DAC_IsTriggerEnabled
TSEL1
LL_DAC_GetTriggerSource
LL_DAC_SetTriggerSource
TSEL2
LL_DAC_GetTriggerSource
LL_DAC_SetTriggerSource
WAVE1
LL_DAC_GetWaveAutoGeneration
LL_DAC_SetWaveAutoGeneration
WAVE2
LL_DAC_GetWaveAutoGeneration
LL_DAC_SetWaveAutoGeneration
DHR12L1
DACC1DHR
LL_DAC_ConvertData12LeftAligned
LL_DAC_DMA_GetRegAddr
DHR12L2
DACC2DHR
LL_DAC_ConvertData12LeftAligned
LL_DAC_DMA_GetRegAddr
DHR12LD
DACC1DHR
LL_DAC_ConvertDualData12LeftAligned
DACC2DHR
LL_DAC_ConvertDualData12LeftAligned
DHR12R1
DACC1DHR
LL_DAC_ConvertData12RightAligned
LL_DAC_DMA_GetRegAddr
DHR12R2
DACC2DHR
LL_DAC_ConvertData12RightAligned
LL_DAC_DMA_GetRegAddr
DHR12RD
DACC1DHR
LL_DAC_ConvertDualData12RightAligned
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1407/1466
Register
Field
Function
DACC2DHR
LL_DAC_ConvertDualData12RightAligned
DHR8R1
DACC1DHR
LL_DAC_ConvertData8RightAligned
LL_DAC_DMA_GetRegAddr
DHR8R2
DACC2DHR
LL_DAC_ConvertData8RightAligned
LL_DAC_DMA_GetRegAddr
DHR8RD
DACC1DHR
LL_DAC_ConvertDualData8RightAligned
DACC2DHR
LL_DAC_ConvertDualData8RightAligned
DOR1
DACC1DOR
LL_DAC_RetrieveOutputData
DOR2
DACC2DOR
LL_DAC_RetrieveOutputData
SR
DMAUDR1
LL_DAC_ClearFlag_DMAUDR1
LL_DAC_IsActiveFlag_DMAUDR1
DMAUDR2
LL_DAC_ClearFlag_DMAUDR2
LL_DAC_IsActiveFlag_DMAUDR2
SWTRIGR
SWTRIG1
LL_DAC_TrigSWConversion
SWTRIG2
LL_DAC_TrigSWConversion
78.8 DMA
Table 32: Correspondence between DMA registers and DMA low-layer driver functions
Register
Field
Function
CCR
CIRC
LL_DMA_ConfigTransfer
LL_DMA_GetMode
LL_DMA_SetMode
DIR
LL_DMA_ConfigTransfer
LL_DMA_GetDataTransferDirection
LL_DMA_SetDataTransferDirection
EN
LL_DMA_DisableChannel
LL_DMA_EnableChannel
LL_DMA_IsEnabledChannel
HTIE
LL_DMA_DisableIT_HT
LL_DMA_EnableIT_HT
LL_DMA_IsEnabledIT_HT
MEM2MEM
LL_DMA_ConfigTransfer
LL_DMA_GetDataTransferDirection
LL_DMA_SetDataTransferDirection
MINC
LL_DMA_ConfigTransfer
LL_DMA_GetMemoryIncMode
Correspondence between API registers and API
low-layer driver functions
UM1749
1408/1466
DocID026232 Rev 6
Register
Field
Function
LL_DMA_SetMemoryIncMode
MSIZE
LL_DMA_ConfigTransfer
LL_DMA_GetMemorySize
LL_DMA_SetMemorySize
PINC
LL_DMA_ConfigTransfer
LL_DMA_GetPeriphIncMode
LL_DMA_SetPeriphIncMode
PL
LL_DMA_ConfigTransfer
LL_DMA_GetChannelPriorityLevel
LL_DMA_SetChannelPriorityLevel
PSIZE
LL_DMA_ConfigTransfer
LL_DMA_GetPeriphSize
LL_DMA_SetPeriphSize
TCIE
LL_DMA_DisableIT_TC
LL_DMA_EnableIT_TC
LL_DMA_IsEnabledIT_TC
TEIE
LL_DMA_DisableIT_TE
LL_DMA_EnableIT_TE
LL_DMA_IsEnabledIT_TE
CMAR
MA
LL_DMA_ConfigAddresses
LL_DMA_GetM2MDstAddress
LL_DMA_GetMemoryAddress
LL_DMA_SetM2MDstAddress
LL_DMA_SetMemoryAddress
CNDTR
NDT
LL_DMA_GetDataLength
LL_DMA_SetDataLength
CPAR
PA
LL_DMA_ConfigAddresses
LL_DMA_GetM2MSrcAddress
LL_DMA_GetPeriphAddress
LL_DMA_SetM2MSrcAddress
LL_DMA_SetPeriphAddress
CSELR
C1S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
C2S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
C3S
LL_DMA_GetPeriphRequest
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1409/1466
Register
Field
Function
LL_DMA_SetPeriphRequest
C4S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
C5S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
C6S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
C7S
LL_DMA_GetPeriphRequest
LL_DMA_SetPeriphRequest
IFCR
CGIF1
LL_DMA_ClearFlag_GI1
CGIF2
LL_DMA_ClearFlag_GI2
CGIF3
LL_DMA_ClearFlag_GI3
CGIF4
LL_DMA_ClearFlag_GI4
CGIF5
LL_DMA_ClearFlag_GI5
CGIF6
LL_DMA_ClearFlag_GI6
CGIF7
LL_DMA_ClearFlag_GI7
CHTIF1
LL_DMA_ClearFlag_HT1
CHTIF2
LL_DMA_ClearFlag_HT2
CHTIF3
LL_DMA_ClearFlag_HT3
CHTIF4
LL_DMA_ClearFlag_HT4
CHTIF5
LL_DMA_ClearFlag_HT5
CHTIF6
LL_DMA_ClearFlag_HT6
CHTIF7
LL_DMA_ClearFlag_HT7
CTCIF1
LL_DMA_ClearFlag_TC1
CTCIF2
LL_DMA_ClearFlag_TC2
CTCIF3
LL_DMA_ClearFlag_TC3
CTCIF4
LL_DMA_ClearFlag_TC4
CTCIF5
LL_DMA_ClearFlag_TC5
CTCIF6
LL_DMA_ClearFlag_TC6
CTCIF7
LL_DMA_ClearFlag_TC7
CTEIF1
LL_DMA_ClearFlag_TE1
CTEIF2
LL_DMA_ClearFlag_TE2
CTEIF3
LL_DMA_ClearFlag_TE3
CTEIF4
LL_DMA_ClearFlag_TE4
CTEIF5
LL_DMA_ClearFlag_TE5
CTEIF6
LL_DMA_ClearFlag_TE6
Correspondence between API registers and API
low-layer driver functions
UM1749
1410/1466
DocID026232 Rev 6
Register
Field
Function
CTEIF7
LL_DMA_ClearFlag_TE7
ISR
GIF1
LL_DMA_IsActiveFlag_GI1
GIF2
LL_DMA_IsActiveFlag_GI2
GIF3
LL_DMA_IsActiveFlag_GI3
GIF4
LL_DMA_IsActiveFlag_GI4
GIF5
LL_DMA_IsActiveFlag_GI5
GIF6
LL_DMA_IsActiveFlag_GI6
GIF7
LL_DMA_IsActiveFlag_GI7
HTIF1
LL_DMA_IsActiveFlag_HT1
HTIF2
LL_DMA_IsActiveFlag_HT2
HTIF3
LL_DMA_IsActiveFlag_HT3
HTIF4
LL_DMA_IsActiveFlag_HT4
HTIF5
LL_DMA_IsActiveFlag_HT5
HTIF6
LL_DMA_IsActiveFlag_HT6
HTIF7
LL_DMA_IsActiveFlag_HT7
TCIF1
LL_DMA_IsActiveFlag_TC1
TCIF2
LL_DMA_IsActiveFlag_TC2
TCIF3
LL_DMA_IsActiveFlag_TC3
TCIF4
LL_DMA_IsActiveFlag_TC4
TCIF5
LL_DMA_IsActiveFlag_TC5
TCIF6
LL_DMA_IsActiveFlag_TC6
TCIF7
LL_DMA_IsActiveFlag_TC7
TEIF1
LL_DMA_IsActiveFlag_TE1
TEIF2
LL_DMA_IsActiveFlag_TE2
TEIF3
LL_DMA_IsActiveFlag_TE3
TEIF4
LL_DMA_IsActiveFlag_TE4
TEIF5
LL_DMA_IsActiveFlag_TE5
TEIF6
LL_DMA_IsActiveFlag_TE6
TEIF7
LL_DMA_IsActiveFlag_TE7
78.9 EXTI
Table 33: Correspondence between EXTI registers and EXTI low-layer driver functions
Register
Field
Function
EMR
EMx
LL_EXTI_DisableEvent_0_31
LL_EXTI_EnableEvent_0_31
LL_EXTI_IsEnabledEvent_0_31
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1411/1466
Register
Field
Function
FTSR
FTx
LL_EXTI_DisableFallingTrig_0_31
LL_EXTI_EnableFallingTrig_0_31
LL_EXTI_IsEnabledFallingTrig_0_31
IMR
IMx
LL_EXTI_DisableIT_0_31
LL_EXTI_EnableIT_0_31
LL_EXTI_IsEnabledIT_0_31
PR
PIFx
LL_EXTI_ClearFlag_0_31
LL_EXTI_IsActiveFlag_0_31
LL_EXTI_ReadFlag_0_31
RTSR
RTx
LL_EXTI_DisableRisingTrig_0_31
LL_EXTI_EnableRisingTrig_0_31
LL_EXTI_IsEnabledRisingTrig_0_31
SWIER
SWIx
LL_EXTI_GenerateSWI_0_31
78.10 GPIO
Table 34: Correspondence between GPIO registers and GPIO low-layer driver functions
Register
Field
Function
AFRH
AFSELy
LL_GPIO_GetAFPin_8_15
LL_GPIO_SetAFPin_8_15
AFRL
AFSELy
LL_GPIO_GetAFPin_0_7
LL_GPIO_SetAFPin_0_7
BRR
BRy
LL_GPIO_ResetOutputPin
BSRR
BSy
LL_GPIO_SetOutputPin
IDR
IDy
LL_GPIO_IsInputPinSet
LL_GPIO_ReadInputPort
LCKR
LCKK
LL_GPIO_IsAnyPinLocked
LL_GPIO_LockPin
LCKy
LL_GPIO_IsPinLocked
MODER
MODEy
LL_GPIO_GetPinMode
LL_GPIO_SetPinMode
ODR
ODy
LL_GPIO_IsOutputPinSet
LL_GPIO_ReadOutputPort
LL_GPIO_TogglePin
LL_GPIO_WriteOutputPort
OSPEEDR
OSPEEDy
LL_GPIO_GetPinSpeed
LL_GPIO_SetPinSpeed
Correspondence between API registers and API
low-layer driver functions
UM1749
1412/1466
DocID026232 Rev 6
Register
Field
Function
OTYPER
OTy
LL_GPIO_GetPinOutputType
LL_GPIO_SetPinOutputType
PUPDR
PUPDy
LL_GPIO_GetPinPull
LL_GPIO_SetPinPull
78.11 I2C
Table 35: Correspondence between I2C registers and I2C low-layer driver functions
Register
Field
Function
CR1
ADDRIE
LL_I2C_DisableIT_ADDR
LL_I2C_EnableIT_ADDR
LL_I2C_IsEnabledIT_ADDR
ALERTEN
LL_I2C_DisableSMBusAlert
LL_I2C_EnableSMBusAlert
LL_I2C_IsEnabledSMBusAlert
ANFOFF
LL_I2C_ConfigFilters
LL_I2C_DisableAnalogFilter
LL_I2C_EnableAnalogFilter
LL_I2C_IsEnabledAnalogFilter
DNF
LL_I2C_ConfigFilters
LL_I2C_GetDigitalFilter
LL_I2C_SetDigitalFilter
ERRIE
LL_I2C_DisableIT_ERR
LL_I2C_EnableIT_ERR
LL_I2C_IsEnabledIT_ERR
GCEN
LL_I2C_DisableGeneralCall
LL_I2C_EnableGeneralCall
LL_I2C_IsEnabledGeneralCall
NACKIE
LL_I2C_DisableIT_NACK
LL_I2C_EnableIT_NACK
LL_I2C_IsEnabledIT_NACK
NOSTRETCH
LL_I2C_DisableClockStretching
LL_I2C_EnableClockStretching
LL_I2C_IsEnabledClockStretching
PE
LL_I2C_Disable
LL_I2C_Enable
LL_I2C_IsEnabled
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1413/1466
Register
Field
Function
PECEN
LL_I2C_DisableSMBusPEC
LL_I2C_EnableSMBusPEC
LL_I2C_IsEnabledSMBusPEC
RXDMAEN
LL_I2C_DisableDMAReq_RX
LL_I2C_EnableDMAReq_RX
LL_I2C_IsEnabledDMAReq_RX
RXIE
LL_I2C_DisableIT_RX
LL_I2C_EnableIT_RX
LL_I2C_IsEnabledIT_RX
SBC
LL_I2C_DisableSlaveByteControl
LL_I2C_EnableSlaveByteControl
LL_I2C_IsEnabledSlaveByteControl
SMBDEN
LL_I2C_GetMode
LL_I2C_SetMode
SMBHEN
LL_I2C_GetMode
LL_I2C_SetMode
STOPIE
LL_I2C_DisableIT_STOP
LL_I2C_EnableIT_STOP
LL_I2C_IsEnabledIT_STOP
TCIE
LL_I2C_DisableIT_TC
LL_I2C_EnableIT_TC
LL_I2C_IsEnabledIT_TC
TXDMAEN
LL_I2C_DisableDMAReq_TX
LL_I2C_EnableDMAReq_TX
LL_I2C_IsEnabledDMAReq_TX
TXIE
LL_I2C_DisableIT_TX
LL_I2C_EnableIT_TX
LL_I2C_IsEnabledIT_TX
WUPEN
LL_I2C_DisableWakeUpFromStop
LL_I2C_EnableWakeUpFromStop
LL_I2C_IsEnabledWakeUpFromStop
CR2
ADD10
LL_I2C_GetMasterAddressingMode
LL_I2C_HandleTransfer
LL_I2C_SetMasterAddressingMode
AUTOEND
LL_I2C_DisableAutoEndMode
LL_I2C_EnableAutoEndMode
Correspondence between API registers and API
low-layer driver functions
UM1749
1414/1466
DocID026232 Rev 6
Register
Field
Function
LL_I2C_HandleTransfer
LL_I2C_IsEnabledAutoEndMode
HEAD10R
LL_I2C_DisableAuto10BitRead
LL_I2C_EnableAuto10BitRead
LL_I2C_HandleTransfer
LL_I2C_IsEnabledAuto10BitRead
NACK
LL_I2C_AcknowledgeNextData
NBYTES
LL_I2C_GetTransferSize
LL_I2C_HandleTransfer
LL_I2C_SetTransferSize
PECBYTE
LL_I2C_EnableSMBusPECCompare
LL_I2C_IsEnabledSMBusPECCompare
RD_WRN
LL_I2C_GetTransferRequest
LL_I2C_HandleTransfer
LL_I2C_SetTransferRequest
RELOAD
LL_I2C_DisableReloadMode
LL_I2C_EnableReloadMode
LL_I2C_HandleTransfer
LL_I2C_IsEnabledReloadMode
SADD
LL_I2C_GetSlaveAddr
LL_I2C_HandleTransfer
LL_I2C_SetSlaveAddr
START
LL_I2C_GenerateStartCondition
LL_I2C_HandleTransfer
STOP
LL_I2C_GenerateStopCondition
LL_I2C_HandleTransfer
ICR
ADDRCF
LL_I2C_ClearFlag_ADDR
ALERTCF
LL_I2C_ClearSMBusFlag_ALERT
ARLOCF
LL_I2C_ClearFlag_ARLO
BERRCF
LL_I2C_ClearFlag_BERR
NACKCF
LL_I2C_ClearFlag_NACK
OVRCF
LL_I2C_ClearFlag_OVR
PECCF
LL_I2C_ClearSMBusFlag_PECERR
STOPCF
LL_I2C_ClearFlag_STOP
TIMOUTCF
LL_I2C_ClearSMBusFlag_TIMEOUT
ISR
ADDCODE
LL_I2C_GetAddressMatchCode
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1415/1466
Register
Field
Function
ADDR
LL_I2C_IsActiveFlag_ADDR
ALERT
LL_I2C_IsActiveSMBusFlag_ALERT
ARLO
LL_I2C_IsActiveFlag_ARLO
BERR
LL_I2C_IsActiveFlag_BERR
BUSY
LL_I2C_IsActiveFlag_BUSY
DIR
LL_I2C_GetTransferDirection
NACKF
LL_I2C_IsActiveFlag_NACK
OVR
LL_I2C_IsActiveFlag_OVR
PECERR
LL_I2C_IsActiveSMBusFlag_PECERR
RXNE
LL_I2C_IsActiveFlag_RXNE
STOPF
LL_I2C_IsActiveFlag_STOP
TC
LL_I2C_IsActiveFlag_TC
TCR
LL_I2C_IsActiveFlag_TCR
TIMEOUT
LL_I2C_IsActiveSMBusFlag_TIMEOUT
TXE
LL_I2C_ClearFlag_TXE
LL_I2C_IsActiveFlag_TXE
TXIS
LL_I2C_IsActiveFlag_TXIS
OAR1
OA1
LL_I2C_SetOwnAddress1
OA1EN
LL_I2C_DisableOwnAddress1
LL_I2C_EnableOwnAddress1
LL_I2C_IsEnabledOwnAddress1
OA1MODE
LL_I2C_SetOwnAddress1
OAR2
OA2
LL_I2C_SetOwnAddress2
OA2EN
LL_I2C_DisableOwnAddress2
LL_I2C_EnableOwnAddress2
LL_I2C_IsEnabledOwnAddress2
OA2MSK
LL_I2C_SetOwnAddress2
PECR
PEC
LL_I2C_GetSMBusPEC
RXDR
RXDATA
LL_I2C_DMA_GetRegAddr
LL_I2C_ReceiveData8
TIMEOUTR
TEXTEN
LL_I2C_DisableSMBusTimeout
LL_I2C_EnableSMBusTimeout
LL_I2C_IsEnabledSMBusTimeout
TIDLE
LL_I2C_ConfigSMBusTimeout
LL_I2C_GetSMBusTimeoutAMode
LL_I2C_SetSMBusTimeoutAMode
Correspondence between API registers and API
low-layer driver functions
UM1749
1416/1466
DocID026232 Rev 6
Register
Field
Function
TIMEOUTA
LL_I2C_ConfigSMBusTimeout
LL_I2C_GetSMBusTimeoutA
LL_I2C_SetSMBusTimeoutA
TIMEOUTB
LL_I2C_ConfigSMBusTimeout
LL_I2C_GetSMBusTimeoutB
LL_I2C_SetSMBusTimeoutB
TIMOUTEN
LL_I2C_DisableSMBusTimeout
LL_I2C_EnableSMBusTimeout
LL_I2C_IsEnabledSMBusTimeout
TIMINGR
PRESC
LL_I2C_GetTimingPrescaler
SCLDEL
LL_I2C_GetDataSetupTime
SCLH
LL_I2C_GetClockHighPeriod
SCLL
LL_I2C_GetClockLowPeriod
SDADEL
LL_I2C_GetDataHoldTime
TIMINGR
LL_I2C_SetTiming
TXDR
TXDATA
LL_I2C_DMA_GetRegAddr
LL_I2C_TransmitData8
78.12 I2S
Table 36: Correspondence between I2S registers and I2S low-layer driver functions
Register
Field
Function
CR2
ERRIE
LL_I2S_DisableIT_ERR
LL_I2S_EnableIT_ERR
LL_I2S_IsEnabledIT_ERR
RXDMAEN
LL_I2S_DisableDMAReq_RX
LL_I2S_EnableDMAReq_RX
LL_I2S_IsEnabledDMAReq_RX
RXNEIE
LL_I2S_DisableIT_RXNE
LL_I2S_EnableIT_RXNE
LL_I2S_IsEnabledIT_RXNE
TXDMAEN
LL_I2S_DisableDMAReq_TX
LL_I2S_EnableDMAReq_TX
LL_I2S_IsEnabledDMAReq_TX
TXEIE
LL_I2S_DisableIT_TXE
LL_I2S_EnableIT_TXE
LL_I2S_IsEnabledIT_TXE
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1417/1466
Register
Field
Function
DR
DR
LL_I2S_ReceiveData16
LL_I2S_TransmitData16
I2SCFGR
ASTRTEN
LL_I2S_DisableAsyncStart
LL_I2S_EnableAsyncStart
LL_I2S_IsEnabledAsyncStart
CHLEN
LL_I2S_GetDataFormat
LL_I2S_SetDataFormat
CKPOL
LL_I2S_GetClockPolarity
LL_I2S_SetClockPolarity
DATLEN
LL_I2S_GetDataFormat
LL_I2S_SetDataFormat
I2SCFG
LL_I2S_GetTransferMode
LL_I2S_SetTransferMode
I2SE
LL_I2S_Disable
LL_I2S_Enable
LL_I2S_IsEnabled
I2SMOD
LL_I2S_Enable
I2SSTD
LL_I2S_GetStandard
LL_I2S_SetStandard
PCMSYNC
LL_I2S_GetStandard
LL_I2S_SetStandard
I2SPR
I2SDIV
LL_I2S_GetPrescalerLinear
LL_I2S_SetPrescalerLinear
MCKOE
LL_I2S_DisableMasterClock
LL_I2S_EnableMasterClock
LL_I2S_IsEnabledMasterClock
ODD
LL_I2S_GetPrescalerParity
LL_I2S_SetPrescalerParity
SR
BSY
LL_I2S_IsActiveFlag_BSY
CHSIDE
LL_I2S_IsActiveFlag_CHSIDE
FRE
LL_I2S_ClearFlag_FRE
LL_I2S_IsActiveFlag_FRE
OVR
LL_I2S_ClearFlag_OVR
LL_I2S_IsActiveFlag_OVR
RXNE
LL_I2S_IsActiveFlag_RXNE
TXE
LL_I2S_IsActiveFlag_TXE
Correspondence between API registers and API
low-layer driver functions
UM1749
1418/1466
DocID026232 Rev 6
Register
Field
Function
UDR
LL_I2S_ClearFlag_UDR
LL_I2S_IsActiveFlag_UDR
78.13 IWDG
Table 37: Correspondence between IWDG registers and IWDG low-layer driver functions
Register
Field
Function
KR
KEY
LL_IWDG_DisableWriteAccess
LL_IWDG_Enable
LL_IWDG_EnableWriteAccess
LL_IWDG_ReloadCounter
PR
PR
LL_IWDG_GetPrescaler
LL_IWDG_SetPrescaler
RLR
RL
LL_IWDG_GetReloadCounter
LL_IWDG_SetReloadCounter
SR
PVU
LL_IWDG_IsActiveFlag_PVU
LL_IWDG_IsReady
RVU
LL_IWDG_IsActiveFlag_RVU
LL_IWDG_IsReady
WVU
LL_IWDG_IsActiveFlag_WVU
LL_IWDG_IsReady
WINR
WIN
LL_IWDG_GetWindow
LL_IWDG_SetWindow
78.14 LPTIM
Table 38: Correspondence between LPTIM registers and LPTIM low-layer driver functions
Register
Field
Function
ARR
ARR
LL_LPTIM_GetAutoReload
LL_LPTIM_SetAutoReload
CFGR
CKFLT
LL_LPTIM_ConfigClock
LL_LPTIM_GetClockFilter
CKPOL
LL_LPTIM_ConfigClock
LL_LPTIM_GetClockPolarity
LL_LPTIM_GetEncoderMode
LL_LPTIM_SetEncoderMode
CKSEL
LL_LPTIM_GetClockSource
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1419/1466
Register
Field
Function
LL_LPTIM_SetClockSource
COUNTMODE
LL_LPTIM_GetCounterMode
LL_LPTIM_SetCounterMode
ENC
LL_LPTIM_DisableEncoderMode
LL_LPTIM_EnableEncoderMode
LL_LPTIM_IsEnabledEncoderMode
PRELOAD
LL_LPTIM_GetUpdateMode
LL_LPTIM_SetUpdateMode
PRESC
LL_LPTIM_GetPrescaler
LL_LPTIM_SetPrescaler
TIMOUT
LL_LPTIM_DisableTimeout
LL_LPTIM_EnableTimeout
LL_LPTIM_IsEnabledTimeout
TRGFLT
LL_LPTIM_ConfigTrigger
LL_LPTIM_GetTriggerFilter
TRIGEN
LL_LPTIM_ConfigTrigger
LL_LPTIM_GetTriggerPolarity
LL_LPTIM_TrigSw
TRIGSEL
LL_LPTIM_ConfigTrigger
LL_LPTIM_GetTriggerSource
WAVE
LL_LPTIM_ConfigOutput
LL_LPTIM_GetWaveform
LL_LPTIM_SetWaveform
WAVPOL
LL_LPTIM_ConfigOutput
LL_LPTIM_GetPolarity
LL_LPTIM_SetPolarity
CMP
CMP
LL_LPTIM_GetCompare
LL_LPTIM_SetCompare
CNT
CNT
LL_LPTIM_GetCounter
CR
CNTSTRT
LL_LPTIM_StartCounter
ENABLE
LL_LPTIM_Disable
LL_LPTIM_Enable
LL_LPTIM_IsEnabled
SNGSTRT
LL_LPTIM_StartCounter
ICR
ARRMCF
LL_LPTIM_ClearFLAG_ARRM
ARROKCF
LL_LPTIM_ClearFlag_ARROK
Correspondence between API registers and API
low-layer driver functions
UM1749
1420/1466
DocID026232 Rev 6
Register
Field
Function
CMPMCF
LL_LPTIM_ClearFLAG_CMPM
CMPOKCF
LL_LPTIM_ClearFlag_CMPOK
DOWNCF
LL_LPTIM_ClearFlag_DOWN
EXTTRIGCF
LL_LPTIM_ClearFlag_EXTTRIG
UPCF
LL_LPTIM_ClearFlag_UP
IER
ARRMIE
LL_LPTIM_DisableIT_ARRM
LL_LPTIM_EnableIT_ARRM
LL_LPTIM_IsEnabledIT_ARRM
ARROKIE
LL_LPTIM_DisableIT_ARROK
LL_LPTIM_EnableIT_ARROK
LL_LPTIM_IsEnabledIT_ARROK
CMPMIE
LL_LPTIM_DisableIT_CMPM
LL_LPTIM_EnableIT_CMPM
LL_LPTIM_IsEnabledIT_CMPM
CMPOKIE
LL_LPTIM_DisableIT_CMPOK
LL_LPTIM_EnableIT_CMPOK
LL_LPTIM_IsEnabledIT_CMPOK
DOWNIE
LL_LPTIM_DisableIT_DOWN
LL_LPTIM_EnableIT_DOWN
LL_LPTIM_IsEnabledIT_DOWN
EXTTRIGIE
LL_LPTIM_DisableIT_EXTTRIG
LL_LPTIM_EnableIT_EXTTRIG
LL_LPTIM_IsEnabledIT_EXTTRIG
UPIE
LL_LPTIM_DisableIT_UP
LL_LPTIM_EnableIT_UP
LL_LPTIM_IsEnabledIT_UP
ISR
ARRM
LL_LPTIM_IsActiveFlag_ARRM
ARROK
LL_LPTIM_IsActiveFlag_ARROK
CMPM
LL_LPTIM_IsActiveFlag_CMPM
CMPOK
LL_LPTIM_IsActiveFlag_CMPOK
DOWN
LL_LPTIM_IsActiveFlag_DOWN
EXTTRIG
LL_LPTIM_IsActiveFlag_EXTTRIG
UP
LL_LPTIM_IsActiveFlag_UP
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1421/1466
78.15 LPUART
Table 39: Correspondence between LPUART registers and LPUART low-layer driver functions
Register
Field
Function
BRR
BRR
LL_LPUART_GetBaudRate
LL_LPUART_SetBaudRate
CR1
CMIE
LL_LPUART_DisableIT_CM
LL_LPUART_EnableIT_CM
LL_LPUART_IsEnabledIT_CM
DEAT
LL_LPUART_GetDEAssertionTime
LL_LPUART_SetDEAssertionTime
DEDT
LL_LPUART_GetDEDeassertionTime
LL_LPUART_SetDEDeassertionTime
IDLEIE
LL_LPUART_DisableIT_IDLE
LL_LPUART_EnableIT_IDLE
LL_LPUART_IsEnabledIT_IDLE
M
LL_LPUART_ConfigCharacter
LL_LPUART_GetDataWidth
LL_LPUART_SetDataWidth
MME
LL_LPUART_DisableMuteMode
LL_LPUART_EnableMuteMode
LL_LPUART_IsEnabledMuteMode
PCE
LL_LPUART_ConfigCharacter
LL_LPUART_GetParity
LL_LPUART_SetParity
PEIE
LL_LPUART_DisableIT_PE
LL_LPUART_EnableIT_PE
LL_LPUART_IsEnabledIT_PE
PS
LL_LPUART_ConfigCharacter
LL_LPUART_GetParity
LL_LPUART_SetParity
RE
LL_LPUART_DisableDirectionRx
LL_LPUART_EnableDirectionRx
LL_LPUART_GetTransferDirection
LL_LPUART_SetTransferDirection
RXNEIE
LL_LPUART_DisableIT_RXNE
LL_LPUART_EnableIT_RXNE
LL_LPUART_IsEnabledIT_RXNE
Correspondence between API registers and API
low-layer driver functions
UM1749
1422/1466
DocID026232 Rev 6
Register
Field
Function
TCIE
LL_LPUART_DisableIT_TC
LL_LPUART_EnableIT_TC
LL_LPUART_IsEnabledIT_TC
TE
LL_LPUART_DisableDirectionTx
LL_LPUART_EnableDirectionTx
LL_LPUART_GetTransferDirection
LL_LPUART_SetTransferDirection
TXEIE
LL_LPUART_DisableIT_TXE
LL_LPUART_EnableIT_TXE
LL_LPUART_IsEnabledIT_TXE
UE
LL_LPUART_Disable
LL_LPUART_Enable
LL_LPUART_IsEnabled
UESM
LL_LPUART_DisableInStopMode
LL_LPUART_EnableInStopMode
LL_LPUART_IsEnabledInStopMode
WAKE
LL_LPUART_GetWakeUpMethod
LL_LPUART_SetWakeUpMethod
CR2
ADD
LL_LPUART_ConfigNodeAddress
LL_LPUART_GetNodeAddress
ADDM7
LL_LPUART_ConfigNodeAddress
LL_LPUART_GetNodeAddressLen
DATAINV
LL_LPUART_GetBinaryDataLogic
LL_LPUART_SetBinaryDataLogic
MSBFIRST
LL_LPUART_GetTransferBitOrder
LL_LPUART_SetTransferBitOrder
RXINV
LL_LPUART_GetRXPinLevel
LL_LPUART_SetRXPinLevel
STOP
LL_LPUART_ConfigCharacter
LL_LPUART_GetStopBitsLength
LL_LPUART_SetStopBitsLength
SWAP
LL_LPUART_GetTXRXSwap
LL_LPUART_SetTXRXSwap
TXINV
LL_LPUART_GetTXPinLevel
LL_LPUART_SetTXPinLevel
CR3
CTSE
LL_LPUART_DisableCTSHWFlowCtrl
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1423/1466
Register
Field
Function
LL_LPUART_EnableCTSHWFlowCtrl
LL_LPUART_GetHWFlowCtrl
LL_LPUART_SetHWFlowCtrl
CTSIE
LL_LPUART_DisableIT_CTS
LL_LPUART_EnableIT_CTS
LL_LPUART_IsEnabledIT_CTS
DDRE
LL_LPUART_DisableDMADeactOnRxErr
LL_LPUART_EnableDMADeactOnRxErr
LL_LPUART_IsEnabledDMADeactOnRxErr
DEM
LL_LPUART_DisableDEMode
LL_LPUART_EnableDEMode
LL_LPUART_IsEnabledDEMode
DEP
LL_LPUART_GetDESignalPolarity
LL_LPUART_SetDESignalPolarity
DMAR
LL_LPUART_DisableDMAReq_RX
LL_LPUART_EnableDMAReq_RX
LL_LPUART_IsEnabledDMAReq_RX
DMAT
LL_LPUART_DisableDMAReq_TX
LL_LPUART_EnableDMAReq_TX
LL_LPUART_IsEnabledDMAReq_TX
EIE
LL_LPUART_DisableIT_ERROR
LL_LPUART_EnableIT_ERROR
LL_LPUART_IsEnabledIT_ERROR
HDSEL
LL_LPUART_DisableHalfDuplex
LL_LPUART_EnableHalfDuplex
LL_LPUART_IsEnabledHalfDuplex
OVRDIS
LL_LPUART_DisableOverrunDetect
LL_LPUART_EnableOverrunDetect
LL_LPUART_IsEnabledOverrunDetect
RTSE
LL_LPUART_DisableRTSHWFlowCtrl
LL_LPUART_EnableRTSHWFlowCtrl
LL_LPUART_GetHWFlowCtrl
LL_LPUART_SetHWFlowCtrl
WUFIE
LL_LPUART_DisableIT_WKUP
LL_LPUART_EnableIT_WKUP
LL_LPUART_IsEnabledIT_WKUP
Correspondence between API registers and API
low-layer driver functions
UM1749
1424/1466
DocID026232 Rev 6
Register
Field
Function
WUS
LL_LPUART_GetWKUPType
LL_LPUART_SetWKUPType
ICR
CMCF
LL_LPUART_ClearFlag_CM
CTSCF
LL_LPUART_ClearFlag_nCTS
FECF
LL_LPUART_ClearFlag_FE
IDLECF
LL_LPUART_ClearFlag_IDLE
NCF
LL_LPUART_ClearFlag_NE
ORECF
LL_LPUART_ClearFlag_ORE
PECF
LL_LPUART_ClearFlag_PE
TCCF
LL_LPUART_ClearFlag_TC
WUCF
LL_LPUART_ClearFlag_WKUP
ISR
BUSY
LL_LPUART_IsActiveFlag_BUSY
CMF
LL_LPUART_IsActiveFlag_CM
CTS
LL_LPUART_IsActiveFlag_CTS
CTSIF
LL_LPUART_IsActiveFlag_nCTS
FE
LL_LPUART_IsActiveFlag_FE
IDLE
LL_LPUART_IsActiveFlag_IDLE
NE
LL_LPUART_IsActiveFlag_NE
ORE
LL_LPUART_IsActiveFlag_ORE
PE
LL_LPUART_IsActiveFlag_PE
REACK
LL_LPUART_IsActiveFlag_REACK
RWU
LL_LPUART_IsActiveFlag_RWU
RXNE
LL_LPUART_IsActiveFlag_RXNE
SBKF
LL_LPUART_IsActiveFlag_SBK
TC
LL_LPUART_IsActiveFlag_TC
TEACK
LL_LPUART_IsActiveFlag_TEACK
TXE
LL_LPUART_IsActiveFlag_TXE
WUF
LL_LPUART_IsActiveFlag_WKUP
RDR
RDR
LL_LPUART_DMA_GetRegAddr
LL_LPUART_ReceiveData8
LL_LPUART_ReceiveData9
RQR
MMRQ
LL_LPUART_RequestEnterMuteMode
RXFRQ
LL_LPUART_RequestRxDataFlush
SBKRQ
LL_LPUART_RequestBreakSending
TDR
TDR
LL_LPUART_DMA_GetRegAddr
LL_LPUART_TransmitData8
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1425/1466
Register
Field
Function
LL_LPUART_TransmitData9
78.16 PWR
Table 40: Correspondence between PWR registers and PWR low-layer driver functions
Register
Field
Function
CR
CSBF
LL_PWR_ClearFlag_SB
CWUF
LL_PWR_ClearFlag_WU
DBP
LL_PWR_DisableBkUpAccess
LL_PWR_EnableBkUpAccess
LL_PWR_IsEnabledBkUpAccess
DS_EE_KOFF
LL_PWR_DisableNVMKeptOff
LL_PWR_EnableNVMKeptOff
LL_PWR_IsEnabledNVMKeptOff
FWU
LL_PWR_DisableFastWakeUp
LL_PWR_EnableFastWakeUp
LL_PWR_IsEnabledFastWakeUp
LPRUN
LL_PWR_DisableLowPowerRunMode
LL_PWR_EnableLowPowerRunMode
LL_PWR_EnterLowPowerRunMode
LL_PWR_ExitLowPowerRunMode
LL_PWR_IsEnabledLowPowerRunMode
LPSDSR
LL_PWR_EnterLowPowerRunMode
LL_PWR_ExitLowPowerRunMode
LL_PWR_GetRegulModeLP
LL_PWR_SetRegulModeLP
PDDS
LL_PWR_GetPowerMode
LL_PWR_SetPowerMode
PLS
LL_PWR_GetPVDLevel
LL_PWR_SetPVDLevel
PVDE
LL_PWR_DisablePVD
LL_PWR_EnablePVD
LL_PWR_IsEnabledPVD
ULP
LL_PWR_DisableUltraLowPower
LL_PWR_EnableUltraLowPower
LL_PWR_IsEnabledUltraLowPower
VOS
LL_PWR_GetRegulVoltageScaling
Correspondence between API registers and API
low-layer driver functions
UM1749
1426/1466
DocID026232 Rev 6
Register
Field
Function
LL_PWR_SetRegulVoltageScaling
CSR
EWUP1
LL_PWR_DisableWakeUpPin
LL_PWR_EnableWakeUpPin
LL_PWR_IsEnabledWakeUpPin
EWUP2
LL_PWR_DisableWakeUpPin
LL_PWR_EnableWakeUpPin
LL_PWR_IsEnabledWakeUpPin
EWUP3
LL_PWR_DisableWakeUpPin
LL_PWR_EnableWakeUpPin
LL_PWR_IsEnabledWakeUpPin
PVDO
LL_PWR_IsActiveFlag_PVDO
REGLPF
LL_PWR_IsActiveFlag_REGLPF
SBF
LL_PWR_IsActiveFlag_SB
VOSF
LL_PWR_IsActiveFlag_VOSF
VREFINTRDYF
LL_PWR_IsActiveFlag_VREFINTRDY
WUF
LL_PWR_IsActiveFlag_WU
78.17 RCC
Table 41: Correspondence between RCC registers and RCC low-layer driver functions
Register
Field
Function
CCIPR
CLK48SEL
LL_RCC_GetRNGClockSource
LL_RCC_GetUSBClockSource
HSI48SEL
LL_RCC_SetRNGClockSource
LL_RCC_SetUSBClockSource
I2CxSEL
LL_RCC_GetI2CClockSource
LL_RCC_SetI2CClockSource
LPTIMxSEL
LL_RCC_GetLPTIMClockSource
LL_RCC_SetLPTIMClockSource
LPUART1SEL
LL_RCC_GetLPUARTClockSource
LL_RCC_SetLPUARTClockSource
USARTxSEL
LL_RCC_GetUSARTClockSource
LL_RCC_SetUSARTClockSource
CFGR
HPRE
LL_RCC_GetAHBPrescaler
LL_RCC_SetAHBPrescaler
MCOPRE
LL_RCC_ConfigMCO
MCOSEL
LL_RCC_ConfigMCO
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1427/1466
Register
Field
Function
PLLDIV
LL_RCC_PLL_ConfigDomain_SYS
LL_RCC_PLL_GetDivider
PLLMUL
LL_RCC_PLL_ConfigDomain_SYS
LL_RCC_PLL_GetMultiplicator
PLLSRC
LL_RCC_PLL_ConfigDomain_SYS
LL_RCC_PLL_GetMainSource
PPRE1
LL_RCC_GetAPB1Prescaler
LL_RCC_SetAPB1Prescaler
PPRE2
LL_RCC_GetAPB2Prescaler
LL_RCC_SetAPB2Prescaler
STOPWUCK
LL_RCC_GetClkAfterWakeFromStop
LL_RCC_SetClkAfterWakeFromStop
SW
LL_RCC_SetSysClkSource
SWS
LL_RCC_GetSysClkSource
CICR
CSSC
LL_RCC_ClearFlag_HSECSS
HSERDYC
LL_RCC_ClearFlag_HSERDY
HSI48RDYC
LL_RCC_ClearFlag_HSI48RDY
HSIRDYC
LL_RCC_ClearFlag_HSIRDY
LSECSSC
LL_RCC_ClearFlag_LSECSS
LSERDYC
LL_RCC_ClearFlag_LSERDY
LSIRDYC
LL_RCC_ClearFlag_LSIRDY
MSIRDYC
LL_RCC_ClearFlag_MSIRDY
PLLRDYC
LL_RCC_ClearFlag_PLLRDY
CIER
HSERDYIE
LL_RCC_DisableIT_HSERDY
LL_RCC_EnableIT_HSERDY
LL_RCC_IsEnabledIT_HSERDY
HSI48RDYIE
LL_RCC_DisableIT_HSI48RDY
LL_RCC_EnableIT_HSI48RDY
LL_RCC_IsEnabledIT_HSI48RDY
HSIRDYIE
LL_RCC_DisableIT_HSIRDY
LL_RCC_EnableIT_HSIRDY
LL_RCC_IsEnabledIT_HSIRDY
LSECSSIE
LL_RCC_DisableIT_LSECSS
LL_RCC_EnableIT_LSECSS
LL_RCC_IsEnabledIT_LSECSS
LSERDYIE
LL_RCC_DisableIT_LSERDY
Correspondence between API registers and API
low-layer driver functions
UM1749
1428/1466
DocID026232 Rev 6
Register
Field
Function
LL_RCC_EnableIT_LSERDY
LL_RCC_IsEnabledIT_LSERDY
LSIRDYIE
LL_RCC_DisableIT_LSIRDY
LL_RCC_EnableIT_LSIRDY
LL_RCC_IsEnabledIT_LSIRDY
MSIRDYIE
LL_RCC_DisableIT_MSIRDY
LL_RCC_EnableIT_MSIRDY
LL_RCC_IsEnabledIT_MSIRDY
PLLRDYIE
LL_RCC_DisableIT_PLLRDY
LL_RCC_EnableIT_PLLRDY
LL_RCC_IsEnabledIT_PLLRDY
CIFR
CSSF
LL_RCC_IsActiveFlag_HSECSS
HSERDYF
LL_RCC_IsActiveFlag_HSERDY
HSI48RDYF
LL_RCC_IsActiveFlag_HSI48RDY
HSIRDYF
LL_RCC_IsActiveFlag_HSIRDY
LSECSSF
LL_RCC_IsActiveFlag_LSECSS
LSERDYF
LL_RCC_IsActiveFlag_LSERDY
LSIRDYF
LL_RCC_IsActiveFlag_LSIRDY
MSIRDYF
LL_RCC_IsActiveFlag_MSIRDY
PLLRDYF
LL_RCC_IsActiveFlag_PLLRDY
CR
CSSHSEON
LL_RCC_HSE_EnableCSS
HSEBYP
LL_RCC_HSE_DisableBypass
LL_RCC_HSE_EnableBypass
HSEON
LL_RCC_HSE_Disable
LL_RCC_HSE_Enable
HSERDY
LL_RCC_HSE_IsReady
HSIDIVEN
LL_RCC_HSI_DisableDivider
LL_RCC_HSI_EnableDivider
HSIDIVF
LL_RCC_IsActiveFlag_HSIDIV
HSIKERON
LL_RCC_HSI_DisableInStopMode
LL_RCC_HSI_EnableInStopMode
HSION
LL_RCC_HSI_Disable
LL_RCC_HSI_Enable
HSIOUTEN
LL_RCC_HSI_DisableOutput
LL_RCC_HSI_EnableOutput
HSIRDY
LL_RCC_HSI_IsReady
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1429/1466
Register
Field
Function
MSION
LL_RCC_MSI_Disable
LL_RCC_MSI_Enable
MSIRDY
LL_RCC_MSI_IsReady
PLLON
LL_RCC_PLL_Disable
LL_RCC_PLL_Enable
PLLRDY
LL_RCC_PLL_IsReady
RTCPRE
LL_RCC_GetRTC_HSEPrescaler
LL_RCC_SetRTC_HSEPrescaler
CRRCR
HSI48CAL
LL_RCC_HSI48_GetCalibration
HSI48DIV6OUTEN
LL_RCC_HSI48_DisableDivider
LL_RCC_HSI48_EnableDivider
LL_RCC_HSI48_IsDivided
HSI48ON
LL_RCC_HSI48_Disable
LL_RCC_HSI48_Enable
HSI48RDY
LL_RCC_HSI48_IsReady
CSR
FWRSTF
LL_RCC_IsActiveFlag_FWRST
IWDGRSTF
LL_RCC_IsActiveFlag_IWDGRST
LPWRRSTF
LL_RCC_IsActiveFlag_LPWRRST
LSEBYP
LL_RCC_LSE_DisableBypass
LL_RCC_LSE_EnableBypass
LSECSSD
LL_RCC_LSE_IsCSSDetected
LSECSSON
LL_RCC_LSE_DisableCSS
LL_RCC_LSE_EnableCSS
LSEDRV
LL_RCC_LSE_GetDriveCapability
LL_RCC_LSE_SetDriveCapability
LSEON
LL_RCC_LSE_Disable
LL_RCC_LSE_Enable
LSERDY
LL_RCC_LSE_IsReady
LSION
LL_RCC_LSI_Disable
LL_RCC_LSI_Enable
LSIRDY
LL_RCC_LSI_IsReady
OBLRSTF
LL_RCC_IsActiveFlag_OBLRST
PINRSTF
LL_RCC_IsActiveFlag_PINRST
PORRSTF
LL_RCC_IsActiveFlag_PORRST
RMVF
LL_RCC_ClearResetFlags
RTCEN
LL_RCC_DisableRTC
Correspondence between API registers and API
low-layer driver functions
UM1749
1430/1466
DocID026232 Rev 6
Register
Field
Function
LL_RCC_EnableRTC
LL_RCC_IsEnabledRTC
RTCRST
LL_RCC_ForceBackupDomainReset
LL_RCC_ReleaseBackupDomainReset
RTCSEL
LL_RCC_GetRTCClockSource
LL_RCC_SetRTCClockSource
SFTRSTF
LL_RCC_IsActiveFlag_SFTRST
WWDGRSTF
LL_RCC_IsActiveFlag_WWDGRST
ICSCR
HSICAL
LL_RCC_HSI_GetCalibration
HSITRIM
LL_RCC_HSI_GetCalibTrimming
LL_RCC_HSI_SetCalibTrimming
MSICAL
LL_RCC_MSI_GetCalibration
MSIRANGE
LL_RCC_MSI_GetRange
LL_RCC_MSI_SetRange
MSITRIM
LL_RCC_MSI_GetCalibTrimming
LL_RCC_MSI_SetCalibTrimming
78.18 RNG
Table 42: Correspondence between RNG registers and RNG low-layer driver functions
Register
Field
Function
CR
IE
LL_RNG_DisableIT
LL_RNG_EnableIT
LL_RNG_IsEnabledIT
RNGEN
LL_RNG_Disable
LL_RNG_Enable
LL_RNG_IsEnabled
DR
RNDATA
LL_RNG_ReadRandData32
SR
CECS
LL_RNG_IsActiveFlag_CECS
CEIS
LL_RNG_ClearFlag_CEIS
LL_RNG_IsActiveFlag_CEIS
DRDY
LL_RNG_IsActiveFlag_DRDY
SECS
LL_RNG_IsActiveFlag_SECS
SEIS
LL_RNG_ClearFlag_SEIS
LL_RNG_IsActiveFlag_SEIS
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1431/1466
78.19 RTC
Table 43: Correspondence between RTC registers and RTC low-layer driver functions
Register
Field
Function
ALRMAR
DT
LL_RTC_ALMA_GetDay
LL_RTC_ALMA_SetDay
DU
LL_RTC_ALMA_GetDay
LL_RTC_ALMA_GetWeekDay
LL_RTC_ALMA_SetDay
LL_RTC_ALMA_SetWeekDay
HT
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetHour
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetHour
HU
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetHour
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetHour
MNT
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetMinute
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetMinute
MNU
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetMinute
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetMinute
MSK1
LL_RTC_ALMA_GetMask
LL_RTC_ALMA_SetMask
MSK2
LL_RTC_ALMA_GetMask
LL_RTC_ALMA_SetMask
MSK3
LL_RTC_ALMA_GetMask
LL_RTC_ALMA_SetMask
MSK4
LL_RTC_ALMA_GetMask
LL_RTC_ALMA_SetMask
PM
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetTimeFormat
LL_RTC_ALMA_SetTimeFormat
ST
LL_RTC_ALMA_ConfigTime
Correspondence between API registers and API
low-layer driver functions
UM1749
1432/1466
DocID026232 Rev 6
Register
Field
Function
LL_RTC_ALMA_GetSecond
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetSecond
SU
LL_RTC_ALMA_ConfigTime
LL_RTC_ALMA_GetSecond
LL_RTC_ALMA_GetTime
LL_RTC_ALMA_SetSecond
WDSEL
LL_RTC_ALMA_DisableWeekday
LL_RTC_ALMA_EnableWeekday
ALRMASSR
MASKSS
LL_RTC_ALMA_GetSubSecondMask
LL_RTC_ALMA_SetSubSecondMask
SS
LL_RTC_ALMA_GetSubSecond
LL_RTC_ALMA_SetSubSecond
ALRMBR
DT
LL_RTC_ALMB_GetDay
LL_RTC_ALMB_SetDay
DU
LL_RTC_ALMB_GetDay
LL_RTC_ALMB_GetWeekDay
LL_RTC_ALMB_SetDay
LL_RTC_ALMB_SetWeekDay
HT
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetHour
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetHour
HU
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetHour
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetHour
MNT
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetMinute
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetMinute
MNU
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetMinute
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetMinute
MSK1
LL_RTC_ALMB_GetMask
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1433/1466
Register
Field
Function
LL_RTC_ALMB_SetMask
MSK2
LL_RTC_ALMB_GetMask
LL_RTC_ALMB_SetMask
MSK3
LL_RTC_ALMB_GetMask
LL_RTC_ALMB_SetMask
MSK4
LL_RTC_ALMB_GetMask
LL_RTC_ALMB_SetMask
PM
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetTimeFormat
LL_RTC_ALMB_SetTimeFormat
ST
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetSecond
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetSecond
SU
LL_RTC_ALMB_ConfigTime
LL_RTC_ALMB_GetSecond
LL_RTC_ALMB_GetTime
LL_RTC_ALMB_SetSecond
WDSEL
LL_RTC_ALMB_DisableWeekday
LL_RTC_ALMB_EnableWeekday
ALRMBSSR
MASKSS
LL_RTC_ALMB_GetSubSecondMask
LL_RTC_ALMB_SetSubSecondMask
SS
LL_RTC_ALMB_GetSubSecond
LL_RTC_ALMB_SetSubSecond
BKPxR
BKP
LL_RTC_BAK_GetRegister
LL_RTC_BAK_SetRegister
CALR
CALM
LL_RTC_CAL_GetMinus
LL_RTC_CAL_SetMinus
CALP
LL_RTC_CAL_IsPulseInserted
LL_RTC_CAL_SetPulse
CALW16
LL_RTC_CAL_GetPeriod
LL_RTC_CAL_SetPeriod
CALW8
LL_RTC_CAL_GetPeriod
LL_RTC_CAL_SetPeriod
CR
ADD1H
LL_RTC_TIME_IncHour
ALRAE
LL_RTC_ALMA_Disable
Correspondence between API registers and API
low-layer driver functions
UM1749
1434/1466
DocID026232 Rev 6
Register
Field
Function
LL_RTC_ALMA_Enable
ALRAIE
LL_RTC_DisableIT_ALRA
LL_RTC_EnableIT_ALRA
LL_RTC_IsEnabledIT_ALRA
ALRBE
LL_RTC_ALMB_Disable
LL_RTC_ALMB_Enable
ALRBIE
LL_RTC_DisableIT_ALRB
LL_RTC_EnableIT_ALRB
LL_RTC_IsEnabledIT_ALRB
BCK
LL_RTC_TIME_DisableDayLightStore
LL_RTC_TIME_EnableDayLightStore
LL_RTC_TIME_IsDayLightStoreEnabled
BYPSHAD
LL_RTC_DisableShadowRegBypass
LL_RTC_EnableShadowRegBypass
LL_RTC_IsShadowRegBypassEnabled
COE
LL_RTC_CAL_GetOutputFreq
LL_RTC_CAL_SetOutputFreq
COSEL
LL_RTC_CAL_GetOutputFreq
LL_RTC_CAL_SetOutputFreq
FMT
LL_RTC_GetHourFormat
LL_RTC_SetHourFormat
OSEL
LL_RTC_GetAlarmOutEvent
LL_RTC_SetAlarmOutEvent
POL
LL_RTC_GetOutputPolarity
LL_RTC_SetOutputPolarity
REFCKON
LL_RTC_DisableRefClock
LL_RTC_EnableRefClock
SUB1H
LL_RTC_TIME_DecHour
TSE
LL_RTC_TS_Disable
LL_RTC_TS_Enable
TSEDGE
LL_RTC_TS_GetActiveEdge
LL_RTC_TS_SetActiveEdge
TSIE
LL_RTC_DisableIT_TS
LL_RTC_EnableIT_TS
LL_RTC_IsEnabledIT_TS
WUCKSEL
LL_RTC_WAKEUP_GetClock
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1435/1466
Register
Field
Function
LL_RTC_WAKEUP_SetClock
WUTE
LL_RTC_WAKEUP_Disable
LL_RTC_WAKEUP_Enable
LL_RTC_WAKEUP_IsEnabled
WUTIE
LL_RTC_DisableIT_WUT
LL_RTC_EnableIT_WUT
LL_RTC_IsEnabledIT_WUT
DR
DT
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetDay
LL_RTC_DATE_SetDay
DU
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetDay
LL_RTC_DATE_SetDay
MT
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetMonth
LL_RTC_DATE_SetMonth
MU
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetMonth
LL_RTC_DATE_SetMonth
WDU
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetWeekDay
LL_RTC_DATE_SetWeekDay
YT
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetYear
LL_RTC_DATE_SetYear
YU
LL_RTC_DATE_Config
LL_RTC_DATE_Get
LL_RTC_DATE_GetYear
LL_RTC_DATE_SetYear
ISR
ALRAF
LL_RTC_ClearFlag_ALRA
Correspondence between API registers and API
low-layer driver functions
UM1749
1436/1466
DocID026232 Rev 6
Register
Field
Function
LL_RTC_IsActiveFlag_ALRA
ALRAWF
LL_RTC_IsActiveFlag_ALRAW
ALRBF
LL_RTC_ClearFlag_ALRB
LL_RTC_IsActiveFlag_ALRB
ALRBWF
LL_RTC_IsActiveFlag_ALRBW
INIT
LL_RTC_DisableInitMode
LL_RTC_EnableInitMode
INITF
LL_RTC_IsActiveFlag_INIT
INITS
LL_RTC_IsActiveFlag_INITS
RECALPF
LL_RTC_IsActiveFlag_RECALP
RSF
LL_RTC_ClearFlag_RS
LL_RTC_IsActiveFlag_RS
SHPF
LL_RTC_IsActiveFlag_SHP
TAMP1F
LL_RTC_ClearFlag_TAMP1
LL_RTC_IsActiveFlag_TAMP1
TAMP2F
LL_RTC_ClearFlag_TAMP2
LL_RTC_IsActiveFlag_TAMP2
TAMP3F
LL_RTC_ClearFlag_TAMP3
LL_RTC_IsActiveFlag_TAMP3
TSF
LL_RTC_ClearFlag_TS
LL_RTC_IsActiveFlag_TS
TSOVF
LL_RTC_ClearFlag_TSOV
LL_RTC_IsActiveFlag_TSOV
WUTF
LL_RTC_ClearFlag_WUT
LL_RTC_IsActiveFlag_WUT
WUTWF
LL_RTC_IsActiveFlag_WUTW
OR
ALARMOUTTYPE
LL_RTC_GetAlarmOutputType
LL_RTC_SetAlarmOutputType
OUT_RMP
LL_RTC_DisableOutRemap
LL_RTC_EnableOutRemap
PRER
PREDIV_A
LL_RTC_GetAsynchPrescaler
LL_RTC_SetAsynchPrescaler
PREDIV_S
LL_RTC_GetSynchPrescaler
LL_RTC_SetSynchPrescaler
SHIFTR
ADD1S
LL_RTC_TIME_Synchronize
SUBFS
LL_RTC_TIME_Synchronize
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1437/1466
Register
Field
Function
SSR
SS
LL_RTC_TIME_GetSubSecond
TAMPCR
TAMP1E
LL_RTC_TAMPER_Disable
LL_RTC_TAMPER_Enable
TAMP1IE
LL_RTC_DisableIT_TAMP1
LL_RTC_EnableIT_TAMP1
LL_RTC_IsEnabledIT_TAMP1
TAMP1MF
LL_RTC_TAMPER_DisableMask
LL_RTC_TAMPER_EnableMask
TAMP1NOERASE
LL_RTC_TAMPER_DisableEraseBKP
LL_RTC_TAMPER_EnableEraseBKP
TAMP1TRG
LL_RTC_TAMPER_DisableActiveLevel
LL_RTC_TAMPER_EnableActiveLevel
TAMP2E
LL_RTC_TAMPER_Disable
LL_RTC_TAMPER_Enable
TAMP2IE
LL_RTC_DisableIT_TAMP2
LL_RTC_EnableIT_TAMP2
LL_RTC_IsEnabledIT_TAMP2
TAMP2MF
LL_RTC_TAMPER_DisableMask
LL_RTC_TAMPER_EnableMask
TAMP2NOERASE
LL_RTC_TAMPER_DisableEraseBKP
LL_RTC_TAMPER_EnableEraseBKP
TAMP2TRG
LL_RTC_TAMPER_DisableActiveLevel
LL_RTC_TAMPER_EnableActiveLevel
TAMP3E
LL_RTC_TAMPER_Disable
LL_RTC_TAMPER_Enable
TAMP3IE
LL_RTC_DisableIT_TAMP3
LL_RTC_EnableIT_TAMP3
LL_RTC_IsEnabledIT_TAMP3
TAMP3MF
LL_RTC_TAMPER_DisableMask
LL_RTC_TAMPER_EnableMask
TAMP3NOERASE
LL_RTC_TAMPER_DisableEraseBKP
LL_RTC_TAMPER_EnableEraseBKP
TAMP3TRG
LL_RTC_TAMPER_DisableActiveLevel
LL_RTC_TAMPER_EnableActiveLevel
TAMPFLT
LL_RTC_TAMPER_GetFilterCount
LL_RTC_TAMPER_SetFilterCount
Correspondence between API registers and API
low-layer driver functions
UM1749
1438/1466
DocID026232 Rev 6
Register
Field
Function
TAMPFREQ
LL_RTC_TAMPER_GetSamplingFreq
LL_RTC_TAMPER_SetSamplingFreq
TAMPIE
LL_RTC_DisableIT_TAMP
LL_RTC_EnableIT_TAMP
LL_RTC_IsEnabledIT_TAMP
TAMPPRCH
LL_RTC_TAMPER_GetPrecharge
LL_RTC_TAMPER_SetPrecharge
TAMPPUDIS
LL_RTC_TAMPER_DisablePullUp
LL_RTC_TAMPER_EnablePullUp
TAMPTS
LL_RTC_TS_DisableOnTamper
LL_RTC_TS_EnableOnTamper
TR
HT
LL_RTC_TIME_Config
LL_RTC_TIME_Get
LL_RTC_TIME_GetHour
LL_RTC_TIME_SetHour
HU
LL_RTC_TIME_Config
LL_RTC_TIME_Get
LL_RTC_TIME_GetHour
LL_RTC_TIME_SetHour
MNT
LL_RTC_TIME_Config
LL_RTC_TIME_Get
LL_RTC_TIME_GetMinute
LL_RTC_TIME_SetMinute
MNU
LL_RTC_TIME_Config
LL_RTC_TIME_Get
LL_RTC_TIME_GetMinute
LL_RTC_TIME_SetMinute
PM
LL_RTC_TIME_Config
LL_RTC_TIME_GetFormat
LL_RTC_TIME_SetFormat
ST
LL_RTC_TIME_Config
LL_RTC_TIME_Get
LL_RTC_TIME_GetSecond
LL_RTC_TIME_SetSecond
SU
LL_RTC_TIME_Config
LL_RTC_TIME_Get
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1439/1466
Register
Field
Function
LL_RTC_TIME_GetSecond
LL_RTC_TIME_SetSecond
TSDR
DT
LL_RTC_TS_GetDate
LL_RTC_TS_GetDay
DU
LL_RTC_TS_GetDate
LL_RTC_TS_GetDay
MT
LL_RTC_TS_GetDate
LL_RTC_TS_GetMonth
MU
LL_RTC_TS_GetDate
LL_RTC_TS_GetMonth
WDU
LL_RTC_TS_GetDate
LL_RTC_TS_GetWeekDay
TSSSR
SS
LL_RTC_TS_GetSubSecond
TSTR
HT
LL_RTC_TS_GetHour
LL_RTC_TS_GetTime
HU
LL_RTC_TS_GetHour
LL_RTC_TS_GetTime
MNT
LL_RTC_TS_GetMinute
LL_RTC_TS_GetTime
MNU
LL_RTC_TS_GetMinute
LL_RTC_TS_GetTime
PM
LL_RTC_TS_GetTimeFormat
ST
LL_RTC_TS_GetSecond
LL_RTC_TS_GetTime
SU
LL_RTC_TS_GetSecond
LL_RTC_TS_GetTime
WPR
KEY
LL_RTC_DisableWriteProtection
LL_RTC_EnableWriteProtection
WUTR
WUT
LL_RTC_WAKEUP_GetAutoReload
LL_RTC_WAKEUP_SetAutoReload
78.20 SPI
Table 44: Correspondence between SPI registers and SPI low-layer driver functions
Register
Field
Function
CR1
BIDIMODE
LL_SPI_GetTransferDirection
LL_SPI_SetTransferDirection
Correspondence between API registers and API
low-layer driver functions
UM1749
1440/1466
DocID026232 Rev 6
Register
Field
Function
BIDIOE
LL_SPI_GetTransferDirection
LL_SPI_SetTransferDirection
BR
LL_SPI_GetBaudRatePrescaler
LL_SPI_SetBaudRatePrescaler
CPHA
LL_SPI_GetClockPhase
LL_SPI_SetClockPhase
CPOL
LL_SPI_GetClockPolarity
LL_SPI_SetClockPolarity
CRCEN
LL_SPI_DisableCRC
LL_SPI_EnableCRC
LL_SPI_IsEnabledCRC
CRCNEXT
LL_SPI_SetCRCNext
DFF
LL_SPI_GetDataWidth
LL_SPI_SetDataWidth
LSBFIRST
LL_SPI_GetTransferBitOrder
LL_SPI_SetTransferBitOrder
MSTR
LL_SPI_GetMode
LL_SPI_SetMode
RXONLY
LL_SPI_GetTransferDirection
LL_SPI_SetTransferDirection
SPE
LL_SPI_Disable
LL_SPI_Enable
LL_SPI_IsEnabled
SSI
LL_SPI_GetMode
LL_SPI_SetMode
SSM
LL_SPI_GetNSSMode
LL_SPI_SetNSSMode
CR2
ERRIE
LL_SPI_DisableIT_ERR
LL_SPI_EnableIT_ERR
LL_SPI_IsEnabledIT_ERR
FRF
LL_SPI_GetStandard
LL_SPI_SetStandard
RXDMAEN
LL_SPI_DisableDMAReq_RX
LL_SPI_EnableDMAReq_RX
LL_SPI_IsEnabledDMAReq_RX
RXNEIE
LL_SPI_DisableIT_RXNE
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1441/1466
Register
Field
Function
LL_SPI_EnableIT_RXNE
LL_SPI_IsEnabledIT_RXNE
SSOE
LL_SPI_GetNSSMode
LL_SPI_SetNSSMode
TXDMAEN
LL_SPI_DisableDMAReq_TX
LL_SPI_EnableDMAReq_TX
LL_SPI_IsEnabledDMAReq_TX
TXEIE
LL_SPI_DisableIT_TXE
LL_SPI_EnableIT_TXE
LL_SPI_IsEnabledIT_TXE
CRCPR
CRCPOLY
LL_SPI_GetCRCPolynomial
LL_SPI_SetCRCPolynomial
DR
DR
LL_SPI_DMA_GetRegAddr
LL_SPI_ReceiveData16
LL_SPI_ReceiveData8
LL_SPI_TransmitData16
LL_SPI_TransmitData8
RXCRCR
RXCRC
LL_SPI_GetRxCRC
SR
BSY
LL_SPI_IsActiveFlag_BSY
CRCERR
LL_SPI_ClearFlag_CRCERR
LL_SPI_IsActiveFlag_CRCERR
FRE
LL_SPI_ClearFlag_FRE
LL_SPI_IsActiveFlag_FRE
MODF
LL_SPI_ClearFlag_MODF
LL_SPI_IsActiveFlag_MODF
OVR
LL_SPI_ClearFlag_OVR
LL_SPI_IsActiveFlag_OVR
RXNE
LL_SPI_IsActiveFlag_RXNE
TXE
LL_SPI_IsActiveFlag_TXE
TXCRCR
TXCRC
LL_SPI_GetTxCRC
78.21 SYSTEM
Table 45: Correspondence between SYSTEM registers and SYSTEM low-layer driver functions
Register
Field
Function
APB1FZ
DBG_I2C1_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
Correspondence between API registers and API
low-layer driver functions
UM1749
1442/1466
DocID026232 Rev 6
Register
Field
Function
DBG_I2C2_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_I2C3_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_IWDG_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_LPTIMER_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_RTC_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_TIM2_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_TIM3_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_TIM6_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_TIM7_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
DBG_WWDG_STOP
LL_DBGMCU_APB1_GRP1_FreezePeriph
LL_DBGMCU_APB1_GRP1_UnFreezePeriph
APB2FZ
DBG_TIM21_STOP
LL_DBGMCU_APB2_GRP1_FreezePeriph
LL_DBGMCU_APB2_GRP1_UnFreezePeriph
DBG_TIM22_STOP
LL_DBGMCU_APB2_GRP1_FreezePeriph
LL_DBGMCU_APB2_GRP1_UnFreezePeriph
DBGMCU_CR
DBG_SLEEP
LL_DBGMCU_DisableDBGSleepMode
LL_DBGMCU_EnableDBGSleepMode
DBG_STANDBY
LL_DBGMCU_DisableDBGStandbyMode
LL_DBGMCU_EnableDBGStandbyMode
DBG_STOP
LL_DBGMCU_DisableDBGStopMode
LL_DBGMCU_EnableDBGStopMode
DBGMCU_IDCODE
DEV_ID
LL_DBGMCU_GetDeviceID
REV_ID
LL_DBGMCU_GetRevisionID
FLASH_ACR
DISAB_BUF
LL_FLASH_DisableBuffers
LL_FLASH_EnableBuffers
LATENCY
LL_FLASH_GetLatency
LL_FLASH_SetLatency
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1443/1466
Register
Field
Function
PRE_READ
LL_FLASH_DisablePreRead
LL_FLASH_EnablePreRead
PRFTEN
LL_FLASH_DisablePrefetch
LL_FLASH_EnablePrefetch
LL_FLASH_IsPrefetchEnabled
RUN_PD
LL_FLASH_DisableRunPowerDown
LL_FLASH_EnableRunPowerDown
SLEEP_PD
LL_FLASH_DisableSleepPowerDown
LL_FLASH_EnableSleepPowerDown
FLASH_PDKEYR
PDKEY1
LL_FLASH_DisableRunPowerDown
LL_FLASH_EnableRunPowerDown
PDKEY2
LL_FLASH_DisableRunPowerDown
LL_FLASH_EnableRunPowerDown
SYSCFG_CFGR1
BOOT_MODE
LL_SYSCFG_GetBootMode
MEM_MODE
LL_SYSCFG_GetRemapMemory
LL_SYSCFG_SetRemapMemory
UFB
LL_SYSCFG_GetFlashBankMode
LL_SYSCFG_SetFlashBankMode
SYSCFG_CFGR2
CAPA
LL_SYSCFG_GetVLCDRailConnection
LL_SYSCFG_SetVLCDRailConnection
FWDIS
LL_SYSCFG_EnableFirewall
LL_SYSCFG_IsEnabledFirewall
I2C_PBx_FMP
LL_SYSCFG_DisableFastModePlus
LL_SYSCFG_EnableFastModePlus
I2Cx_FMP
LL_SYSCFG_DisableFastModePlus
LL_SYSCFG_EnableFastModePlus
SYSCFG_CFGR3
ENBUF_SENSOR_ADC
LL_SYSCFG_TEMPSENSOR_Disable
LL_SYSCFG_TEMPSENSOR_Enable
ENBUF_VREFINT_ADC
LL_SYSCFG_VREFINT_DisableADC
LL_SYSCFG_VREFINT_EnableADC
ENBUF_VREFINT_COMP
LL_SYSCFG_VREFINT_DisableCOMP
LL_SYSCFG_VREFINT_EnableCOMP
ENREF_HSI48
LL_SYSCFG_VREFINT_DisableHSI48
LL_SYSCFG_VREFINT_EnableHSI48
REF_LOCK
LL_SYSCFG_VREFINT_IsLocked
LL_SYSCFG_VREFINT_Lock
Correspondence between API registers and API
low-layer driver functions
UM1749
1444/1466
DocID026232 Rev 6
Register
Field
Function
SEL_VREF_OUT
LL_SYSCFG_VREFINT_GetConnection
LL_SYSCFG_VREFINT_SetConnection
VREFINT_RDYF
LL_SYSCFG_VREFINT_IsReady
SYSCFG_EXTICR1
EXTI0
LL_SYSCFG_SetEXTISource
EXTI1
LL_SYSCFG_SetEXTISource
EXTI2
LL_SYSCFG_SetEXTISource
EXTI3
LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR2
EXTI4
LL_SYSCFG_SetEXTISource
EXTI5
LL_SYSCFG_SetEXTISource
EXTI6
LL_SYSCFG_SetEXTISource
EXTI7
LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR3
EXTI10
LL_SYSCFG_SetEXTISource
EXTI11
LL_SYSCFG_SetEXTISource
EXTI8
LL_SYSCFG_SetEXTISource
EXTI9
LL_SYSCFG_SetEXTISource
SYSCFG_EXTICR4
EXTI12
LL_SYSCFG_SetEXTISource
EXTI13
LL_SYSCFG_SetEXTISource
EXTI14
LL_SYSCFG_SetEXTISource
EXTI15
LL_SYSCFG_SetEXTISource
78.22 TIM
Table 46: Correspondence between TIM registers and TIM low-layer driver functions
Register
Field
Function
ARR
ARR
LL_TIM_GetAutoReload
LL_TIM_SetAutoReload
CCER
CC1E
LL_TIM_CC_DisableChannel
LL_TIM_CC_EnableChannel
LL_TIM_CC_IsEnabledChannel
CC1NP
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
CC1P
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
LL_TIM_OC_ConfigOutput
LL_TIM_OC_GetPolarity
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1445/1466
Register
Field
Function
LL_TIM_OC_SetPolarity
CC2E
LL_TIM_CC_DisableChannel
LL_TIM_CC_EnableChannel
LL_TIM_CC_IsEnabledChannel
CC2NP
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
CC2P
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
LL_TIM_OC_ConfigOutput
LL_TIM_OC_GetPolarity
LL_TIM_OC_SetPolarity
CC3E
LL_TIM_CC_DisableChannel
LL_TIM_CC_EnableChannel
LL_TIM_CC_IsEnabledChannel
CC3NP
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
CC3P
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
LL_TIM_OC_ConfigOutput
LL_TIM_OC_GetPolarity
LL_TIM_OC_SetPolarity
CC4E
LL_TIM_CC_DisableChannel
LL_TIM_CC_EnableChannel
LL_TIM_CC_IsEnabledChannel
CC4NP
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
CC4P
LL_TIM_IC_Config
LL_TIM_IC_GetPolarity
LL_TIM_IC_SetPolarity
LL_TIM_OC_ConfigOutput
LL_TIM_OC_GetPolarity
Correspondence between API registers and API
low-layer driver functions
UM1749
1446/1466
DocID026232 Rev 6
Register
Field
Function
LL_TIM_OC_SetPolarity
CCMR1
CC1S
LL_TIM_IC_Config
LL_TIM_IC_GetActiveInput
LL_TIM_IC_SetActiveInput
LL_TIM_OC_ConfigOutput
CC2S
LL_TIM_IC_Config
LL_TIM_IC_GetActiveInput
LL_TIM_IC_SetActiveInput
LL_TIM_OC_ConfigOutput
IC1F
LL_TIM_IC_Config
LL_TIM_IC_GetFilter
LL_TIM_IC_SetFilter
IC1PSC
LL_TIM_IC_Config
LL_TIM_IC_GetPrescaler
LL_TIM_IC_SetPrescaler
IC2F
LL_TIM_IC_Config
LL_TIM_IC_GetFilter
LL_TIM_IC_SetFilter
IC2PSC
LL_TIM_IC_Config
LL_TIM_IC_GetPrescaler
LL_TIM_IC_SetPrescaler
OC1CE
LL_TIM_OC_DisableClear
LL_TIM_OC_EnableClear
LL_TIM_OC_IsEnabledClear
OC1FE
LL_TIM_OC_DisableFast
LL_TIM_OC_EnableFast
LL_TIM_OC_IsEnabledFast
OC1M
LL_TIM_OC_GetMode
LL_TIM_OC_SetMode
OC1PE
LL_TIM_OC_DisablePreload
LL_TIM_OC_EnablePreload
LL_TIM_OC_IsEnabledPreload
OC2CE
LL_TIM_OC_DisableClear
LL_TIM_OC_EnableClear
LL_TIM_OC_IsEnabledClear
OC2FE
LL_TIM_OC_DisableFast
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1447/1466
Register
Field
Function
LL_TIM_OC_EnableFast
LL_TIM_OC_IsEnabledFast
OC2M
LL_TIM_OC_GetMode
LL_TIM_OC_SetMode
OC2PE
LL_TIM_OC_DisablePreload
LL_TIM_OC_EnablePreload
LL_TIM_OC_IsEnabledPreload
CCMR2
CC3S
LL_TIM_IC_Config
LL_TIM_IC_GetActiveInput
LL_TIM_IC_SetActiveInput
LL_TIM_OC_ConfigOutput
CC4S
LL_TIM_IC_Config
LL_TIM_IC_GetActiveInput
LL_TIM_IC_SetActiveInput
LL_TIM_OC_ConfigOutput
IC3F
LL_TIM_IC_Config
LL_TIM_IC_GetFilter
LL_TIM_IC_SetFilter
IC3PSC
LL_TIM_IC_Config
LL_TIM_IC_GetPrescaler
LL_TIM_IC_SetPrescaler
IC4F
LL_TIM_IC_Config
LL_TIM_IC_GetFilter
LL_TIM_IC_SetFilter
IC4PSC
LL_TIM_IC_Config
LL_TIM_IC_GetPrescaler
LL_TIM_IC_SetPrescaler
OC3CE
LL_TIM_OC_DisableClear
LL_TIM_OC_EnableClear
LL_TIM_OC_IsEnabledClear
OC3FE
LL_TIM_OC_DisableFast
LL_TIM_OC_EnableFast
LL_TIM_OC_IsEnabledFast
OC3M
LL_TIM_OC_GetMode
LL_TIM_OC_SetMode
OC3PE
LL_TIM_OC_DisablePreload
Correspondence between API registers and API
low-layer driver functions
UM1749
1448/1466
DocID026232 Rev 6
Register
Field
Function
LL_TIM_OC_EnablePreload
LL_TIM_OC_IsEnabledPreload
OC4CE
LL_TIM_OC_DisableClear
LL_TIM_OC_EnableClear
LL_TIM_OC_IsEnabledClear
OC4FE
LL_TIM_OC_DisableFast
LL_TIM_OC_EnableFast
LL_TIM_OC_IsEnabledFast
OC4M
LL_TIM_OC_GetMode
LL_TIM_OC_SetMode
OC4PE
LL_TIM_OC_DisablePreload
LL_TIM_OC_EnablePreload
LL_TIM_OC_IsEnabledPreload
CCR1
CCR1
LL_TIM_IC_GetCaptureCH1
LL_TIM_OC_GetCompareCH1
LL_TIM_OC_SetCompareCH1
CCR2
CCR2
LL_TIM_IC_GetCaptureCH2
LL_TIM_OC_GetCompareCH2
LL_TIM_OC_SetCompareCH2
CCR3
CCR3
LL_TIM_IC_GetCaptureCH3
LL_TIM_OC_GetCompareCH3
LL_TIM_OC_SetCompareCH3
CCR4
CCR4
LL_TIM_IC_GetCaptureCH4
LL_TIM_OC_GetCompareCH4
LL_TIM_OC_SetCompareCH4
CNT
CNT
LL_TIM_GetCounter
LL_TIM_SetCounter
CR1
ARPE
LL_TIM_DisableARRPreload
LL_TIM_EnableARRPreload
LL_TIM_IsEnabledARRPreload
CEN
LL_TIM_DisableCounter
LL_TIM_EnableCounter
LL_TIM_IsEnabledCounter
CKD
LL_TIM_GetClockDivision
LL_TIM_SetClockDivision
CMS
LL_TIM_GetCounterMode
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1449/1466
Register
Field
Function
LL_TIM_SetCounterMode
DIR
LL_TIM_GetCounterMode
LL_TIM_GetDirection
LL_TIM_SetCounterMode
OPM
LL_TIM_GetOnePulseMode
LL_TIM_SetOnePulseMode
UDIS
LL_TIM_DisableUpdateEvent
LL_TIM_EnableUpdateEvent
LL_TIM_IsEnabledUpdateEvent
URS
LL_TIM_GetUpdateSource
LL_TIM_SetUpdateSource
CR2
CCDS
LL_TIM_CC_GetDMAReqTrigger
LL_TIM_CC_SetDMAReqTrigger
MMS
LL_TIM_SetTriggerOutput
TI1S
LL_TIM_IC_DisableXORCombination
LL_TIM_IC_EnableXORCombination
LL_TIM_IC_IsEnabledXORCombination
DCR
DBA
LL_TIM_ConfigDMABurst
DBL
LL_TIM_ConfigDMABurst
DIER
CC1DE
LL_TIM_DisableDMAReq_CC1
LL_TIM_EnableDMAReq_CC1
LL_TIM_IsEnabledDMAReq_CC1
CC1IE
LL_TIM_DisableIT_CC1
LL_TIM_EnableIT_CC1
LL_TIM_IsEnabledIT_CC1
CC2DE
LL_TIM_DisableDMAReq_CC2
LL_TIM_EnableDMAReq_CC2
LL_TIM_IsEnabledDMAReq_CC2
CC2IE
LL_TIM_DisableIT_CC2
LL_TIM_EnableIT_CC2
LL_TIM_IsEnabledIT_CC2
CC3DE
LL_TIM_DisableDMAReq_CC3
LL_TIM_EnableDMAReq_CC3
LL_TIM_IsEnabledDMAReq_CC3
CC3IE
LL_TIM_DisableIT_CC3
LL_TIM_EnableIT_CC3
Correspondence between API registers and API
low-layer driver functions
UM1749
1450/1466
DocID026232 Rev 6
Register
Field
Function
LL_TIM_IsEnabledIT_CC3
CC4DE
LL_TIM_DisableDMAReq_CC4
LL_TIM_EnableDMAReq_CC4
LL_TIM_IsEnabledDMAReq_CC4
CC4IE
LL_TIM_DisableIT_CC4
LL_TIM_EnableIT_CC4
LL_TIM_IsEnabledIT_CC4
TDE
LL_TIM_DisableDMAReq_TRIG
LL_TIM_EnableDMAReq_TRIG
LL_TIM_IsEnabledDMAReq_TRIG
TIE
LL_TIM_DisableIT_TRIG
LL_TIM_EnableIT_TRIG
LL_TIM_IsEnabledIT_TRIG
UDE
LL_TIM_DisableDMAReq_UPDATE
LL_TIM_EnableDMAReq_UPDATE
LL_TIM_IsEnabledDMAReq_UPDATE
UIE
LL_TIM_DisableIT_UPDATE
LL_TIM_EnableIT_UPDATE
LL_TIM_IsEnabledIT_UPDATE
EGR
CC1G
LL_TIM_GenerateEvent_CC1
CC2G
LL_TIM_GenerateEvent_CC2
CC3G
LL_TIM_GenerateEvent_CC3
CC4G
LL_TIM_GenerateEvent_CC4
TG
LL_TIM_GenerateEvent_TRIG
UG
LL_TIM_GenerateEvent_UPDATE
PSC
PSC
LL_TIM_GetPrescaler
LL_TIM_SetPrescaler
SMCR
ECE
LL_TIM_DisableExternalClock
LL_TIM_EnableExternalClock
LL_TIM_IsEnabledExternalClock
LL_TIM_SetClockSource
ETF
LL_TIM_ConfigETR
ETP
LL_TIM_ConfigETR
ETPS
LL_TIM_ConfigETR
MSM
LL_TIM_DisableMasterSlaveMode
LL_TIM_EnableMasterSlaveMode
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1451/1466
Register
Field
Function
LL_TIM_IsEnabledMasterSlaveMode
OCCS
LL_TIM_SetOCRefClearInputSource
SMS
LL_TIM_SetClockSource
LL_TIM_SetEncoderMode
LL_TIM_SetSlaveMode
TS
LL_TIM_SetTriggerInput
SR
CC1IF
LL_TIM_ClearFlag_CC1
LL_TIM_IsActiveFlag_CC1
CC1OF
LL_TIM_ClearFlag_CC1OVR
LL_TIM_IsActiveFlag_CC1OVR
CC2IF
LL_TIM_ClearFlag_CC2
LL_TIM_IsActiveFlag_CC2
CC2OF
LL_TIM_ClearFlag_CC2OVR
LL_TIM_IsActiveFlag_CC2OVR
CC3IF
LL_TIM_ClearFlag_CC3
LL_TIM_IsActiveFlag_CC3
CC3OF
LL_TIM_ClearFlag_CC3OVR
LL_TIM_IsActiveFlag_CC3OVR
CC4IF
LL_TIM_ClearFlag_CC4
LL_TIM_IsActiveFlag_CC4
CC4OF
LL_TIM_ClearFlag_CC4OVR
LL_TIM_IsActiveFlag_CC4OVR
TIF
LL_TIM_ClearFlag_TRIG
LL_TIM_IsActiveFlag_TRIG
UIF
LL_TIM_ClearFlag_UPDATE
LL_TIM_IsActiveFlag_UPDATE
TIM21_OR
ETR_RMP
LL_TIM_SetRemap
TI1_RMP
LL_TIM_SetRemap
TI2_RMP
LL_TIM_SetRemap
TIM22_OR
ETR_RMP
LL_TIM_SetRemap
TI1_RMP
LL_TIM_SetRemap
TIM2_OR
ETR_RMP
LL_TIM_SetRemap
TI4_RMP
LL_TIM_SetRemap
TIM3_OR
ETR_RMP
LL_TIM_SetRemap
TI1_RMP
LL_TIM_SetRemap
TI2_RMP
LL_TIM_SetRemap
Correspondence between API registers and API
low-layer driver functions
UM1749
1452/1466
DocID026232 Rev 6
Register
Field
Function
TI4_RMP
LL_TIM_SetRemap
78.23 USART
Table 47: Correspondence between USART registers and USART low-layer driver functions
Register
Field
Function
BRR
BRR
LL_USART_GetBaudRate
LL_USART_SetBaudRate
CR1
CMIE
LL_USART_DisableIT_CM
LL_USART_EnableIT_CM
LL_USART_IsEnabledIT_CM
DEAT
LL_USART_GetDEAssertionTime
LL_USART_SetDEAssertionTime
DEDT
LL_USART_GetDEDeassertionTime
LL_USART_SetDEDeassertionTime
EOBIE
LL_USART_DisableIT_EOB
LL_USART_EnableIT_EOB
LL_USART_IsEnabledIT_EOB
IDLEIE
LL_USART_DisableIT_IDLE
LL_USART_EnableIT_IDLE
LL_USART_IsEnabledIT_IDLE
M0
LL_USART_ConfigCharacter
LL_USART_GetDataWidth
LL_USART_SetDataWidth
M1
LL_USART_ConfigCharacter
LL_USART_GetDataWidth
LL_USART_SetDataWidth
MME
LL_USART_DisableMuteMode
LL_USART_EnableMuteMode
LL_USART_IsEnabledMuteMode
OVER8
LL_USART_GetOverSampling
LL_USART_SetOverSampling
PCE
LL_USART_ConfigCharacter
LL_USART_GetParity
LL_USART_SetParity
PEIE
LL_USART_DisableIT_PE
LL_USART_EnableIT_PE
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1453/1466
Register
Field
Function
LL_USART_IsEnabledIT_PE
PS
LL_USART_ConfigCharacter
LL_USART_GetParity
LL_USART_SetParity
RE
LL_USART_DisableDirectionRx
LL_USART_EnableDirectionRx
LL_USART_GetTransferDirection
LL_USART_SetTransferDirection
RTOIE
LL_USART_DisableIT_RTO
LL_USART_EnableIT_RTO
LL_USART_IsEnabledIT_RTO
RXNEIE
LL_USART_DisableIT_RXNE
LL_USART_EnableIT_RXNE
LL_USART_IsEnabledIT_RXNE
TCIE
LL_USART_DisableIT_TC
LL_USART_EnableIT_TC
LL_USART_IsEnabledIT_TC
TE
LL_USART_DisableDirectionTx
LL_USART_EnableDirectionTx
LL_USART_GetTransferDirection
LL_USART_SetTransferDirection
TXEIE
LL_USART_DisableIT_TXE
LL_USART_EnableIT_TXE
LL_USART_IsEnabledIT_TXE
UE
LL_USART_Disable
LL_USART_Enable
LL_USART_IsEnabled
UESM
LL_USART_DisableInStopMode
LL_USART_EnableInStopMode
LL_USART_IsEnabledInStopMode
WAKE
LL_USART_GetWakeUpMethod
LL_USART_SetWakeUpMethod
CR2
ABREN
LL_USART_DisableAutoBaudRate
LL_USART_EnableAutoBaudRate
LL_USART_IsEnabledAutoBaud
ABRMODE
LL_USART_GetAutoBaudRateMode
Correspondence between API registers and API
low-layer driver functions
UM1749
1454/1466
DocID026232 Rev 6
Register
Field
Function
LL_USART_SetAutoBaudRateMode
ADD
LL_USART_ConfigNodeAddress
LL_USART_GetNodeAddress
ADDM7
LL_USART_ConfigNodeAddress
LL_USART_GetNodeAddressLen
CLKEN
LL_USART_ConfigAsyncMode
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigMultiProcessMode
LL_USART_ConfigSmartcardMode
LL_USART_ConfigSyncMode
LL_USART_DisableSCLKOutput
LL_USART_EnableSCLKOutput
LL_USART_IsEnabledSCLKOutput
CPHA
LL_USART_ConfigClock
LL_USART_GetClockPhase
LL_USART_SetClockPhase
CPOL
LL_USART_ConfigClock
LL_USART_GetClockPolarity
LL_USART_SetClockPolarity
DATAINV
LL_USART_GetBinaryDataLogic
LL_USART_SetBinaryDataLogic
LBCL
LL_USART_ConfigClock
LL_USART_GetLastClkPulseOutput
LL_USART_SetLastClkPulseOutput
LBDIE
LL_USART_DisableIT_LBD
LL_USART_EnableIT_LBD
LL_USART_IsEnabledIT_LBD
LBDL
LL_USART_GetLINBrkDetectionLen
LL_USART_SetLINBrkDetectionLen
LINEN
LL_USART_ConfigAsyncMode
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigMultiProcessMode
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1455/1466
Register
Field
Function
LL_USART_ConfigSmartcardMode
LL_USART_ConfigSyncMode
LL_USART_DisableLIN
LL_USART_EnableLIN
LL_USART_IsEnabledLIN
MSBFIRST
LL_USART_GetTransferBitOrder
LL_USART_SetTransferBitOrder
RTOEN
LL_USART_DisableRxTimeout
LL_USART_EnableRxTimeout
LL_USART_IsEnabledRxTimeout
RXINV
LL_USART_GetRXPinLevel
LL_USART_SetRXPinLevel
STOP
LL_USART_ConfigCharacter
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigSmartcardMode
LL_USART_GetStopBitsLength
LL_USART_SetStopBitsLength
SWAP
LL_USART_GetTXRXSwap
LL_USART_SetTXRXSwap
TXINV
LL_USART_GetTXPinLevel
LL_USART_SetTXPinLevel
CR3
CTSE
LL_USART_DisableCTSHWFlowCtrl
LL_USART_EnableCTSHWFlowCtrl
LL_USART_GetHWFlowCtrl
LL_USART_SetHWFlowCtrl
CTSIE
LL_USART_DisableIT_CTS
LL_USART_EnableIT_CTS
LL_USART_IsEnabledIT_CTS
DDRE
LL_USART_DisableDMADeactOnRxErr
LL_USART_EnableDMADeactOnRxErr
LL_USART_IsEnabledDMADeactOnRxErr
DEM
LL_USART_DisableDEMode
LL_USART_EnableDEMode
LL_USART_IsEnabledDEMode
DEP
LL_USART_GetDESignalPolarity
Correspondence between API registers and API
low-layer driver functions
UM1749
1456/1466
DocID026232 Rev 6
Register
Field
Function
LL_USART_SetDESignalPolarity
DMAR
LL_USART_DisableDMAReq_RX
LL_USART_EnableDMAReq_RX
LL_USART_IsEnabledDMAReq_RX
DMAT
LL_USART_DisableDMAReq_TX
LL_USART_EnableDMAReq_TX
LL_USART_IsEnabledDMAReq_TX
EIE
LL_USART_DisableIT_ERROR
LL_USART_EnableIT_ERROR
LL_USART_IsEnabledIT_ERROR
HDSEL
LL_USART_ConfigAsyncMode
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigMultiProcessMode
LL_USART_ConfigSmartcardMode
LL_USART_ConfigSyncMode
LL_USART_DisableHalfDuplex
LL_USART_EnableHalfDuplex
LL_USART_IsEnabledHalfDuplex
IREN
LL_USART_ConfigAsyncMode
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigMultiProcessMode
LL_USART_ConfigSyncMode
LL_USART_DisableIrda
LL_USART_EnableIrda
LL_USART_IsEnabledIrda
IRLP
LL_USART_GetIrdaPowerMode
LL_USART_SetIrdaPowerMode
NACK
LL_USART_DisableSmartcardNACK
LL_USART_EnableSmartcardNACK
LL_USART_IsEnabledSmartcardNACK
ONEBIT
LL_USART_DisableOneBitSamp
LL_USART_EnableOneBitSamp
UM1749
Correspondence between API registers and API
low-layer driver functions
DocID026232 Rev 6
1457/1466
Register
Field
Function
LL_USART_IsEnabledOneBitSamp
OVRDIS
LL_USART_DisableOverrunDetect
LL_USART_EnableOverrunDetect
LL_USART_IsEnabledOverrunDetect
RTSE
LL_USART_DisableRTSHWFlowCtrl
LL_USART_EnableRTSHWFlowCtrl
LL_USART_GetHWFlowCtrl
LL_USART_SetHWFlowCtrl
SCARCNT
LL_USART_GetSmartcardAutoRetryCount
LL_USART_SetSmartcardAutoRetryCount
SCEN
LL_USART_ConfigAsyncMode
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigIrdaMode
LL_USART_ConfigLINMode
LL_USART_ConfigMultiProcessMode
LL_USART_ConfigSmartcardMode
LL_USART_ConfigSyncMode
LL_USART_DisableSmartcard
LL_USART_EnableSmartcard
LL_USART_IsEnabledSmartcard
WUFIE
LL_USART_DisableIT_WKUP
LL_USART_EnableIT_WKUP
LL_USART_IsEnabledIT_WKUP
WUS
LL_USART_GetWKUPType
LL_USART_SetWKUPType
GTPR
GT
LL_USART_GetSmartcardGuardTime
LL_USART_SetSmartcardGuardTime
PSC
LL_USART_GetIrdaPrescaler
LL_USART_GetSmartcardPrescaler
LL_USART_SetIrdaPrescaler
LL_USART_SetSmartcardPrescaler
ICR
CMCF
LL_USART_ClearFlag_CM
CTSCF
LL_USART_ClearFlag_nCTS
EOBCF
LL_USART_ClearFlag_EOB
FECF
LL_USART_ClearFlag_FE
IDLECF
LL_USART_ClearFlag_IDLE
Correspondence between API registers and API
low-layer driver functions
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Register
Field
Function
LBDCF
LL_USART_ClearFlag_LBD
NCF
LL_USART_ClearFlag_NE
ORECF
LL_USART_ClearFlag_ORE
PECF
LL_USART_ClearFlag_PE
RTOCF
LL_USART_ClearFlag_RTO
TCCF
LL_USART_ClearFlag_TC
WUCF
LL_USART_ClearFlag_WKUP
ISR
ABRE
LL_USART_IsActiveFlag_ABRE
ABRF
LL_USART_IsActiveFlag_ABR
BUSY
LL_USART_IsActiveFlag_BUSY
CMF
LL_USART_IsActiveFlag_CM
CTS
LL_USART_IsActiveFlag_CTS
CTSIF
LL_USART_IsActiveFlag_nCTS
EOBF
LL_USART_IsActiveFlag_EOB
FE
LL_USART_IsActiveFlag_FE
IDLE
LL_USART_IsActiveFlag_IDLE
LBDF
LL_USART_IsActiveFlag_LBD
NF
LL_USART_IsActiveFlag_NE
ORE
LL_USART_IsActiveFlag_ORE
PE
LL_USART_IsActiveFlag_PE
REACK
LL_USART_IsActiveFlag_REACK
RTOF
LL_USART_IsActiveFlag_RTO
RWU
LL_USART_IsActiveFlag_RWU
RXNE
LL_USART_IsActiveFlag_RXNE
SBKF
LL_USART_IsActiveFlag_SBK
TC
LL_USART_IsActiveFlag_TC
TEACK
LL_USART_IsActiveFlag_TEACK
TXE
LL_USART_IsActiveFlag_TXE
WUF
LL_USART_IsActiveFlag_WKUP
RDR
RDR
LL_USART_DMA_GetRegAddr
LL_USART_ReceiveData8
LL_USART_ReceiveData9
RQR
ABRRQ
LL_USART_RequestAutoBaudRate
MMRQ
LL_USART_RequestEnterMuteMode
RXFRQ
LL_USART_RequestRxDataFlush
SBKRQ
LL_USART_RequestBreakSending
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Register
Field
Function
TXFRQ
LL_USART_RequestTxDataFlush
RTOR
BLEN
LL_USART_GetBlockLength
LL_USART_SetBlockLength
RTO
LL_USART_GetRxTimeout
LL_USART_SetRxTimeout
TDR
TDR
LL_USART_DMA_GetRegAddr
LL_USART_TransmitData8
LL_USART_TransmitData9
78.24 WWDG
Table 48: Correspondence between WWDG registers and WWDG low-layer driver functions
Register
Field
Function
CFR
EWI
LL_WWDG_EnableIT_EWKUP
LL_WWDG_IsEnabledIT_EWKUP
W
LL_WWDG_GetWindow
LL_WWDG_SetWindow
WDGTB
LL_WWDG_GetPrescaler
LL_WWDG_SetPrescaler
CR
T
LL_WWDG_GetCounter
LL_WWDG_SetCounter
WDGA
LL_WWDG_Enable
LL_WWDG_IsEnabled
SR
EWIF
LL_WWDG_ClearFlag_EWKUP
LL_WWDG_IsActiveFlag_EWKUP
FAQs
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79 FAQs
General subjects
Why should I use the HAL drivers?
There are many advantages in using the HAL drivers:
Ease of use: you can use the HAL drivers to configure and control any peripheral
embedded within your STM32 MCU without prior in-depth knowledge of the product.
HAL drivers provide intuitive and ready-to-use APIs to configure the peripherals and
support polling, interrupt and DMA programming model to accommodate all
application requirements, thus allowing the end-user to build a complete application by
calling a few APIs.
Higher level of abstraction than a standard peripheral library allowing to transparently
manage:
Data transfers and processing using blocking mode (polling) or non-blocking
mode (interrupt or DMA)
Error management through peripheral error detection and timeout mechanism.
Generic architecture that speeds up initialization and porting, thus allowing customers
to focus on innovation.
Generic set of APIs with full compatibility across the STM32 series/lines, to ease the
porting task between STM32 MCUs.
The APIs provided within the HAL drivers are feature-oriented and do not require in-
depth knowledge of peripheral operation.
The APIs provided are modular. They include initialization, IO operation and control
functions. The end-user has to call init function, then start the process by calling one
IO operation functions (write, read, transmit, receive, …). Most of the peripherals have
the same architecture.
The number of functions required to build a complete and useful application is very
reduced. As an example, to build a UART communication process, the user only has
to call HAL_UART_Init() then HAL_UART_Transmit() or HAL_UART_Receive().
Which STM32L0 devices are supported by the HAL drivers?
The HAL drivers are developed to support all STM32L0 devices. To ensure compatibility
between all devices as well as portability with others series and lines, the API is split into
the generic and the extension APIs . For more details, please refer to Section 2.4: "Devices
supported by HAL drivers".
What is the cost of using HAL drivers in term of code size and performance?
Like generic architecture drivers, the HAL drivers may induce firmware overhead.
This is due to the high abstraction level and ready-to-use APIs which allow data transfers,
errors management and offloads the user application from implementation details.
Architecture
How many files should I modify to configure the HAL drivers?
Only one file needs to be modified: stm32l0xx_hal_conf.h. You can modify this file by
disabling unused modules, or adjusting some parameters (i.e. HSE value, System
configuration, Ethernet parameters configuration…)
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A template is provided in the HAL drivers folders (stm32l0xx_hal_conf_template.c).
Which header files should I include in my application to use the HAL drivers?
Only stm32l0xx_hal.h file has to be included.
What is the difference between stm32l0xx_hal_ppp.c/.h and
stm32l0xx_hal_ppp_ex.c/.h?
The HAL driver architecture supports common features across STM32 series/lines. To
support specific features, the drivers are split into two groups.
The generic APIs (stm32l0xx_hal_ppp.c): It includes the common set of APIs across
all the STM32 product lines
The extension APIs (stm32l0xx_hal_ppp_ex.c): It includes the specific APIs for
specific device part number or family.
Is it possible to use the APIs available in stm32l0xx_ll_ppp.c?
These APIs cannot be used directly because they are internal and offer services to upper
layer drivers. As an example stm32l0xx_ll_fmc.c/h driver is used by stm32l0xx_hal_sram.c,
stm32l0xx_hal_nor.c, stm32l0xx_hal_nand.c and stm32l0xx_hal_sdram.c drivers.
Initialization and I/O operation functions
How do I configure the system clock?
Unlike the standard library, the system clock configuration is not performed in CMSIS
drivers file (system_stm32l0xx.c) but in the main user application by calling the two main
functions, HAL_RCC_OscConfig() and HAL_RCC_ClockConfig(). It can be modified in any
user application section.
What is the purpose of the PPP_HandleTypeDef *pHandle structure located
in each driver in addition to the Initialization structure
PPP_HandleTypeDef *pHandle is the main structure implemented in the HAL drivers. It
handles the peripheral configuration and registers, and embeds all the structures and
variables required to follow the peripheral device flow (pointer to buffer, Error code,
State,...)
However, this structure is not required to service peripherals such as GPIO, SYSTICK,
PWR, and RCC.
What is the purpose of HAL_PPP_MspInit() and HAL_PPP_MspDeInit()
functions?
These function are called within HAL_PPP_Init() and HAL_PPP_DeInit(), respectively.
They are used to perform the low level Initialization/de-initialization related to the additional
hardware resources (RCC, GPIO, NVIC and DMA).
These functions are declared in stm32l0xx_hal_msp.c. A template is provided in the HAL
driver folders (stm32l0xx_hal_msp_template.c).
When and how should I use callbacks functions (functions declared with the
attribute __weak)?
Use callback functions for the I/O operations used in DMA or interrupt mode. The PPP
process complete callbacks are called to inform the user about process completion in real-
time event mode (interrupts).
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The Errors callbacks are called when a processing error occurs in DMA or interrupt mode.
These callbacks are customized by the user to add user proprietary code. They can be
declared in the application. Note that the same process completion callbacks are used for
DMA and interrupt mode.
Is it mandatory to use HAL_Init() function at the beginning of the user
application?
It is mandatory to use HAL_Init() function to enable the system configuration (Prefetch,
Data instruction cache,…), configure the systTick and the NVIC priority grouping and the
hardware low level initialization.
The SysTick configuration shall be adjusted by calling HAL_RCC_ClockConfig() function,
to obtain 1 ms whatever the system clock.
Why do I need to configure the SysTick timer to use the HAL drivers?
The SysTick timer is configured to be used to generate variable increments by calling
HAL_IncTick() function in SysTick ISR and retrieve the value of this variable by calling
HAL_GetTick() function.
The call HAL_GetTick() function is mandatory when using HAL drivers with Polling Process
or when using HAL_Delay().
Why is the SysTick timer configured to have 1 ms?
This is mandatory to ensure correct IO operation in particular for polling mode operation
where the 1 ms is required as timebase.
Could HAL_Delay() function block my application under certain conditions?
Care must be taken when using HAL_Delay() since this function provides accurate delay
based on a variable incremented in SysTick ISR. This implies that if HAL_Delay() is called
from a peripheral ISR process, then the SysTick interrupt must have higher priority
(numerically lower) than the peripheral interrupt, otherwise the caller ISR process will be
blocked. Use HAL_NVIC_SetPriority() function to change the SysTick interrupt priority.
What programming model sequence should I follow to use HAL drivers ?
Follow the sequence below to use the APIs provided in the HAL drivers:
1. Call HAL_Init() function to initialize the system (data cache, NVIC priority,…).
2. Initialize the system clock by calling HAL_RCC_OscConfig() followed by
HAL_RCC_ClockConfig().
3. Add HAL_IncTick() function under SysTick_Handler() ISR function to enable polling
process when using HAL_Delay() function
4. Start initializing your peripheral by calling HAL_PPP_Init().
5. Implement the hardware low level initialization (Peripheral clock, GPIO, DMA,..) by
calling HAL_PPP_MspInit() in stm32l0xx_hal_msp.c
6. Start your process operation by calling IO operation functions.
What is the purpose of HAL_PPP_IRQHandler() function and when should I
use it?
HAL_PPP_IRQHandler() is used to handle interrupt process. It is called under
PPP_IRQHandler() function in stm32l0xx_it.c. In this case, the end-user has to implement
only the callbacks functions (prefixed by __weak) to perform the appropriate action when
an interrupt is detected. Advanced users can implement their own code in
PPP_IRQHandler() without calling HAL_PPP_IRQHandler().
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Can I use directly the macros defined in stm32l0xx_hal_ppp.h ?
Yes, you can: a set of macros is provided with the APIs. They allow accessing directly
some specific features using peripheral flags.
Where must PPP_HandleTypedef structure peripheral handler be declared?
PPP_HandleTypedef structure peripheral handler must be declared as a global variable, so
that all the structure fields are set to 0 by default. In this way, the peripheral handler default
state are set to HAL_PPP_STATE_RESET, which is the default state for each peripheral
after a system reset.
Revision history
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Table 49: Document revision history
Date
Revisi
on
Changes
03-Jun-
2014
1
Initial release.
30-Jul-
2015
2
Section 2.4: "Devices supported by HAL drivers" added support for STM32L07xxx and
STM32L08xxx and updated stm32l0xx_hal_dac_ex.c and stm32l0xx_hal_lcd.c support for
STM32L05/6xx devices.
Removed note related to STM32Cube V1.0 in Section 2.12.2.1: "HAL global initialization".
Updated common macros in Section 2.9: "HAL common resources"
Updated GPIO_Typedef type (AF0) in Section 22: "HAL GPIO Generic Driver".
Added new HAL_NVIC_GetPriority(IRQn_Type IRQn function in Section 10: "HAL CORTEX
Generic Driver".
20-Nov-
2015
3
Added stm32l0xx_flash.ld in Section 2.1.2: "User-application files".
Added STM32L011xx, STM32L021xx, STM32L031xx and STM32L041xx in Section 2.4:
"Devices supported by HAL drivers".
Updated example of peripheral structure in Section 2.2.1: "Peripheral handle structures".
Changed HAL_ADCEx_CalibrationStart() into HAL_ADCEx_Calibration_Start() in Table 10:
"HAL extension APIs".
Replaced GPIO_SPEED_LOW by GPIO_SPEED_FREQ_LOW, GPIO_SPEED_MEDIUM by
GPIO_SPEED_FREQ_MEDIUM, GPIO_SPEED_FAST by
GPIO_SPEED_FREQ_FREQ_HIGH and GPIO_SPEED_HIGH by
GPIO_SPEED_FREQ_VERY_HIGH) speed in Table 12: "Description of GPIO_InitTypeDef
structure".
Updated example of system clock configuration code in Section 2.12.2.2: "System clock
initialization".
Add new API to control the MPU (see and ).
Renamed some HAL macros and driver define statements to ensure consistency all over
STM32 families:
Added new define statements to specify the GPIO Speed (GPIO_SPEED_LOW
replaced by GPIO_SPEED_FREQ_LOW for example).
Added new macro to check the Comparator inputs (IS_COMP1_LPTIMCONNECTION
and IS_COMP2_LPTIMCONNECTION).
05-Apr-
2016
4
Updated .
Updated Figure 7: "HAL driver model".
Added Section 3: "Overview of Low Layer drivers".
Added Section 4: "Cohabiting of HAL and LL ".
Section 10.2: "CORTEX Firmware driver API description": remove
__HAL_CORTEX_SYSTICKCLK_CONFIG(..) macro since this service is already covered by
HAL_SYSTICK_CLKSourceConfig() function.
Section 17.3: "DMA Firmware driver defines": Added HAL_DMA_GET_COUNTER macrro.
Added descriptions of LL drivers for the following peripherals: ADC, COMP, CRC, CRS,
DAC, DMA, EXTI, GPIO, I2C, I2S, IWDG, LPTIM, LPUART, PWR, RCC, RNG, RTC, SPI,
TIM, USART, WWDG, as well as additional Low Level Bus, System, Cortex and Utilities
APIs.
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Date
Revisi
on
Changes
06-Jun-
2016
5
HAL/LL COMP
Added missing definition for COMP_INPUT_PLUS_IO6 and
LL_COMP_INPUT_PLUS_IO6, supported by STM32L0 Category1 (STM32L011xx,
STM32L021xx).
Removed COMP_INVERTINGINPUT_IO3 definition.
Renamed COMP_INVERTINGINPUT_IO2 to COMP_INPUT_MINUS_DAC1_CH2.
The EXTI set-up is now managed by HAL_COMP_Init() function, using updated
definitions of COMP_TRIGGERMODE_xxx.
The functions HAL_COMP_Start_IT() and HAH_COMP_Stop_IT() have been
removed.
HAL LCD
Corrected SYSCFG LCD External Capacitors definitions.
Added new __HAL_SYSCFG_VLCD_CAPA_CONFIG() macro to configure the VLCD
Decoupling capacitance connection.
Added new __HAL_SYSCFG_GET_VLCD_CAPA_CONFIG() macro to return the
decoupling of LCD capacitance configured by the user.
Added LCD Voltage output buffer enable macro definitions.
19-Dec-
2016
6
Update for release V1.8.0 of the HAL and LL drivers. Refer to the release note provided
within the firmware package for details.
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