Discovery Kit With STM32F303VC MCU User Manual F3
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UM1570
User manual
Discovery kit with STM32F303VC MCU
Introduction
The STM32F3DISCOVERY discovery kit is a complete demonstration and development
platform for STMicroelectronics ARM® Cortex®-M4 core-based STM32F303VCT6
microcontroller. It includes an ST-LINK/V2 (or V2-B) embedded debug tool interface, an ST
MEMS gyroscope, an ST MEMS E-compass, LEDs, push-buttons and an USB Mini-B
connector.
Figure 1. STM32F3DISCOVERY
July 2016
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www.st.com
1
Contents
UM1570
Contents
1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6
5.1
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3
Development toolchains supporting the STM32F3DISCOVERY . . . . . . . . 9
Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1
The STM32F3DISCOVERY discovery board mechanical drawing . . . . . 13
6.2
Embedded ST-LINK/V2 (or V2-B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2.2
ST-LINK/V2 (or V2-B) firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2.3
VCP configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2.4
Using ST-LINK/V2 (or V2-B) to program/debug the STM32F303VCT6
on board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2.5
Using ST-LINK/V2 (or V2-B) to program/debug an external STM32
application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3
Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.4
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.5
Push-buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.6
USB device supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7
ST MEMS E-compass (ST MEMS LSM303DLHC) . . . . . . . . . . . . . . . . . 19
6.8
ST MEMS Gyroscope (ST MEMS L3GD20) . . . . . . . . . . . . . . . . . . . . . . 19
6.9
JP3 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.10
OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.11
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6.2.1
6.10.1
OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.10.2
OSC 32 kHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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Contents
6.12
Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7
STM32F3DISCOVERY electrical schematics . . . . . . . . . . . . . . . . . . . . 32
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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3
List of tables
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List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
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List of the order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Debug connector CN3 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
STM32F303VCT6 MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . 22
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
STM32F3DISCOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Board layout (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Board layout (bottom view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
STM32F3DISCOVERY mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
USB composite device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
STM32F3DISCOVERY connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ST-LINK/V2 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
STM32F3DISCOVERY top level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
STM32F3DISCOVERY ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
STM32F3DISCOVERY STM32F303VCT6 MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
STM32F3DISCOVERY Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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5
Features
1
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Features
The STM32F3DISCOVERY board offers the following features.
•
STM32F303VCT6 microcontroller featuring 256 Kbytes of Flash memory, 48 Kbytes of
RAM in an LQFP100 package
•
On-board ST-LINK/V2 for PCB Version A or B or ST-LINK/V2-B for PCB Version C and
newer
•
USB ST-LINK functions:
–
Debug port
–
Virtual COM port with ST-LINK/V2-B only
–
Mass storage with ST-LINK/V2-B only
•
Board power supply: through the USB bus or from an external 3 V or 5 V supply voltage
•
External application power supply: 3 V and 5 V
•
L3GD20, ST MEMS motion sensor, 3-axis digital output gyroscope
•
LSM303DLHC, ST MEMS system-in-package featuring a 3D digital linear acceleration
sensor and a 3D digital magnetic sensor
•
Ten LEDs:
–
LD1 (red) for 3.3 V power-on.
–
LD2 (red/green) for USB communication.
–
Eight user LEDs, LD3/10 (red), LD4/9 (blue), LD5/8 (orange) and LD6/7 (green).
•
Two pushbuttons (user and reset)
•
USB USER with Mini-B connector
•
Extension header for LQFP100 I/Os for quick connection to prototyping board and easy
probing
•
Comprehensive free software including a variety of examples, part of STM32CubeF3
package or STSW-STM32118 for legacy Standard Library usage
A large number of free ready-to-run application firmware examples are available at
www.st.com/stm32f3discovery to support a quick evaluation and development.
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2
Product marking
Product marking
Evaluation tools marked as "ES" or "E" are not yet qualified and therefore they are not ready
to be used as reference design or in production. Any consequences deriving from such
usage will not be at ST charge. In no event, ST will be liable for any customer usage of
these engineering sample tools as reference design or in production.
"E" or "ES" marking examples of location:
3
•
On the targeted STM32 that is soldered on the board (for illustration of STM32 marking,
refer to the section "Package information" of the STM32 datasheet available at
www.st.com).
•
Next to the evaluation tool ordering part number, that is stuck or silk-screen printed on
the board.
Ordering information
To order the Discovery kit for the STM32F303 line of microcontrollers, refer to Table 1.
Table 1. List of the order codes
Order code
STM32F3DISCOVERY
ST-LINK version
ST-LINK/V2 for PCB version A or B
ST-LINK/V2-B for PCB version C and newer
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Conventions
4
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Conventions
Table 2 provides the definition of some conventions used in the present document.
Table 2. ON/OFF conventions
Convention
Definition
Jumper JP1 ON
Jumper fitted
Jumper JP1 OFF
Jumper not fitted
Solder bridge SBx ON
SBx connections closed by solder
Solder bridge SBx OFF SBx connections left open
5
Quick start
The STM32F3DISCOVERY board is a low-cost and easy-to-use development kit to quickly
evaluate and start development with an STM32 F3 Series microcontroller. Before installing
and using the product, accept the Evaluation Product License Agreement from the
www.st.com/stm32f3discovery webpage. For more information on the
STM32F3DISCOVERY board and for demonstration software, visit the
www.st.com/stm32f3discovery webpage.
5.1
Getting started
Follow the sequence below to configure the STM32F3DISCOVERY board and launch the
DISCOVER application:
1.
Check the jumper positions on the board, JP3 ON, CN4 ON (DISCOVERY selected).
2.
Connect the STM32F3DISCOVERY board to a PC with a USB cable Type-A to Mini-B
through the USB ST-LINK or USB USER connector to power the board. The red LEDs
LD1 (PWR) and LD2 (COM) light up.
3.
The eight LED indicators blink sequentially.
4.
Press the USER button to enable the ST MEMS gyroscope sensor.
5.
Observe how the blinking of the LEDs indicates the gyroscope movements.
6.
Press the USER button again to enable the ST MEMS E-compass sensor.
7.
Keep the board in a horizontal position. One of the eight LEDs lights up to indicate the
direction to North.
8.
Tilt the board and the eight LEDs blink again
9.
To examine or modify the DISCOVER project related to this demo, visit the
www.st.com/stm32f3discovery webpage and follow the tutorial. Discover the
STM32F303xx MCU features, download and execute programs proposed in the list of
projects.
10. Develop applications using the available examples.
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5.2
5.3
Quick start
System requirements
•
Windows® PC (XP, 7, 8)
•
USB Type-A to Mini-B USB cable
Development toolchains supporting the
STM32F3DISCOVERY
•
IAR® EWARM (IAR Embedded Workbench®)
•
Keil® MDK-ARM™
•
GCC-based IDEs (free AC6: SW4STM32, Atollic® TrueSTUDIO®,...)
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Hardware layout and configuration
6
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Hardware layout and configuration
The STM32F3DISCOVERY board is designed around the STM32F303VCT6
microcontroller in a 100-pin LQFP package.
Figure 2 illustrates the connections between the STM32F303VCT6 and its peripherals
(ST-LINK/V2, push-buttons, LEDs, USB, ST MEMS Gyroscope, ST MEMS E-compass, and
connectors).
Figure 2 and Figure 3 help the user to locate these features on the STM32F3DISCOVERY
board.
Figure 2. Hardware block diagram
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10/37
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Hardware layout and configuration
Figure 3. Board layout (top view)
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&20
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RUDQJH/(' /'
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EOXH/(' /'
RUDQJH/(' /'
UHG/(' /'
Note:
Pin 1 of CN3, CN4, JP3, JP4, P1 and P2 connectors are identified by a square.
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Hardware layout and configuration
UM1570
Figure 4. Board layout (bottom view)
6% 6:2
6%6%6%6% 5(6(59('
6%6%6%6% '()$8/7
6% 1567
6% 670B567
6% 0&2
6%
6%
6%
6%
6% 5;7;
6% 5;7;
;FU\VWDO
;FU\VWDO
;FU\VWDO
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6% %227
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6% 86%86(5
6% %5(6(7
6% 86%86(5
5R+6
61
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Note:
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If SB12 is ON, SB17 must be OFF and R33 removed to provide the clock source from MCO
correctly.
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The STM32F3DISCOVERY discovery board mechanical
drawing
Figure 5. STM32F3DISCOVERY mechanical drawing
66.00mm
53.34mm
2.22mm
97.00mm
15.24mm
33.82mm
16.04mm
6.33mm
5.08mm
3.34mm
6.33mm
33.82mm
6.1
Hardware layout and configuration
2.54mm
6.33mm
2.54mm
53.34mm
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6.33mm
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Hardware layout and configuration
6.2
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Embedded ST-LINK/V2 (or V2-B)
The ST-LINK/V2 on PCB version A or B or the ST-LINK/V2-B on PCB version C is
embedded as programming and debugging tool. Virtual COM port and USB mass storage
features are supported by the ST-LINK/V2-B only.
The embedded ST-LINK/V2 (or V2-B) supports only SWD for STM32 devices. For
information about debugging and programming features refer to ST-LINK/V2 in-circuit
debugger/programmer for STM8 and STM32, User manual (UM1075), which describes in
detail all the ST-LINK/V2 features.
The changes on ST-LINK/V2-B versus ST-LINK/V2 version are listed below. New features
supported on ST-LINK/V2-B are:
•
Virtual Com port interface on USB
•
Mass storage interface on USB
The embedded-on-board features not supported either on ST-LINK/V2 or on
ST-STLINK/V2-B are:
•
SWIM interface
•
Minimum supported application voltage limited to 3 V
•
USB power management request for more than 100 mA power on USB
Known limitation:
activating the readout protection on the STM32 target, prevents the target application from
running afterwards. The readout protection must be kept disabled on the STM32 target.
There are two different ways to use the embedded ST-LINK/V2 (or V2-B), depending on the
jumper states (see Table 3):
•
Programming/debugging the STM32 on board (refer to Section 6.2.4: Using STLINK/V2 (or V2-B) to program/debug the STM32F303VCT6 on board)
•
Programming/debugging the STM32 in an external application board, using a cable
connected to SWD connector CN2 (refer to Section 6.2.5: Using ST-LINK/V2 (or V2-B)
to program/debug an external STM32 application)
Table 3. Jumper states
Jumper state
6.2.1
Description
Both CN4 jumpers ON
ST-LINK/V2 (or V2-B) functions enabled for on-board programming
(default)
Both CN4 jumpers OFF
ST-LINK/V2 (or V2-B) functions enabled for application through external
CN3 connector (SWD supported)
Drivers
The ST-LINK/V2 (or V2-B) requires a dedicated USB driver, which, for Windows® XP, 7, 8,
can be found at the www.st.com website. In case the STM32 Discovery is connected to the
PC before the driver is installed, some Discovery interfaces may be declared as "Unknown"
in the PC device manager. In this case the user must install the driver files, and from the
device manager he must update the driver of the connected device (see Figure 6).
Note:
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Prefer using the "USB Composite Device" handle for a full recovery.
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Hardware layout and configuration
Figure 6. USB composite device
6.2.2
ST-LINK/V2 (or V2-B) firmware upgrade
The ST-LINK/V2 (or V2-B) embeds a firmware upgrade mechanism for in-situ upgrade
through the USB port. As the firmware may evolve during the life time of the ST-LINK/V2 (or
V2-B) product (for example new functionalities, bug fixes, support for new microcontroller
families), it is recommended to visit the www.st.com website, before starting to use the
Discovery board and periodically, to stay up-to-date with the latest firmware version.
6.2.3
VCP configuration
The ST-LINK/V2-B on STM32F3DISCOVERY supports virtual Com port (VCP) on U2 pin 12
(ST-LINK_TX) and U2 pin 13 (ST-LINK_RX), which are connected to the STM32F303 MCU
target STM32 USART1 (PA9, PA10), thanks to SB11 and SB15 solder bridges.
The SB11 (PA9) and SB15 (PA10) default configurations for STM32F3DISCOVERY are
given in Table 5: Solder bridges.
6.2.4
Using ST-LINK/V2 (or V2-B) to program/debug the STM32F303VCT6
on board
To program the STM32F303VCT6 MCU on the board, simply plug in the two jumpers
marked in red on CN4, as shown in Figure 7: STM32F3DISCOVERY connections, but do
not use the CN3 connector as that could disturb the communication with the
STM32F303VCT6 of the STM32F3DISCOVERY.
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Hardware layout and configuration
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Figure 7. STM32F3DISCOVERY connections
6.2.5
Using ST-LINK/V2 (or V2-B) to program/debug an external STM32
application
It is very easy to use the ST-LINK/V2 (or V2-B) to program the STM32 on an external
application. Simply remove the two jumpers from CN4 as shown in Figure 8: ST-LINK/V2
connections, and connect the application to the CN3 debug connector according to Table 4.
Note:
SB7 must be OFF if the CN3 pin 5 is used in an external application.
Table 4. Debug connector CN3 (SWD)
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Pin
CN3
1
VDD_TARGET
2
SWCLK
3
GND
4
SWDIO
SWD data input/output
5
NRST
RESET of target MCU
6
SWO
Reserved
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Designation
VDD from application
SWD clock
Ground
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Hardware layout and configuration
Figure 8. ST-LINK/V2 connections
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Hardware layout and configuration
6.3
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Power supply and power selection
The power supply is provided either by the host PC through the USB cable, or by an
external 5 V power supply.
The D1 and D2 diodes protect the 5 V and 3 V pins from external power supplies.
•
5 V and 3 V can be used as output power supplies when another application board is
connected to pins P1 and P2. In this case, the 5 V and 3 V pins deliver a 5 V or 3 V
power supply and power consumption must be lower than 100 mA.
•
5 V and 3 V can also be used as input power supplies, for example when the USB
connectors are not connected to the PC. In this case, the STM32F3DISCOVERY board
must be powered by a power supply unit or by auxiliary equipment complying with the
standard EN-60950-1: 2006+A11/2009, and must be Safety Extra Low Voltage (SELV)
with limited power capability.
Note:
The board can be also powered through the USB USER connector and it is protected by D4
and D5 diodes when both USBs are connected (in which case, the 5 V power is around 4.4
volts).
6.4
LEDs
6.5
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•
LD1 PWR: red LED indicates that the board is powered.
•
LD2 COM: LD2 default status is red. LD2 turns to green to indicate that
communications are in progress between the PC and the ST-LINK/V2.
•
User LD3: red LED is a user LED connected to the I/O PE9 of the STM32F303VCT6.
•
User LD4: blue LED is a user LED connected to the I/O PE8 of the STM32F303VCT6.
•
User LD5: orange LED is a user LED connected to the I/O PE10 of the
STM32F303VCT6.
•
User LD6: green LED is a user LED connected to the I/O PE15 of the
STM32F303VCT6.
•
User LD7: green LED is a user LED connected to the I/O PE11 of the
STM32F303VCT6.
•
User LD8: orange LED is a user LED connected to the I/O PE14 of the
STM32F303VCT6.
•
User LD9: blue LED is a user LED connected to the I/O PE12 of the STM32F303VCT6.
•
User LD10: red LED is a user LED connected to the I/O PE13 of the STM32F303VCT6.
Push-buttons
•
B1 USER: user and wake-up button connected to the I/O PA0 of the STM32F303VCT6.
•
B2 RESET: push-button connected to NRST is used to RESET the STM32F303VCT6.
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6.6
Hardware layout and configuration
USB device supported
The STM32F303VCT6 MCU is also used to drive the second USB Mini-B connector (USB
USER), which allows the board to be used as a USB Device. The STM32F3DISCOVERY
can then act as a USB joystick, mouse, or other similar device. If both USBs are connected,
diodes D4 and D5 protect the board and use the power from the USB ST-LINK.
The board can be powered through this USB USER connector, then LED1 PWR lights,
LED2 COM blinks and it can run an application in standalone mode.
6.7
ST MEMS E-compass (ST MEMS LSM303DLHC)
The LSM303DLHC is an ultra-compact low-power system-in-package featuring a 3D digital
linear acceleration sensor and a 3D digital magnetic sensor. It includes a sensing element
and an IC interface able to provide the measured acceleration to the external world through
an I2C serial interface.
The LSM303DLHC has dynamically user-selectable full scales of ±2g/±8g and is capable of
measuring acceleration, and a magnetic field full scale from ±1.3g to 8.1g with an output
data rate of 100 Hz or 400 Hz.
The STM32F303VCT6 MCU controls this motion sensor through the I2C interface.
6.8
ST MEMS Gyroscope (ST MEMS L3GD20)
The L3GD20 is an ultra-compact, low-power, three-axis-angular-rate sensor. It includes a
sensing element and an IC interface able to provide the measured angular rate to the
external world through the I2C/SPI serial interface.
The L3GD20 has dynamically user-selectable full scales of ±250 dps/±500 dps/±2000 dps
and is capable of measuring rates.
The STM32F303VCT6 MCU controls this motion sensor through the SPI interface.
6.9
JP3 (Idd)
Jumper JP3, labeled Idd, allows the measurement of the consumption of the
STM32F303VCT6 by removing the jumper and connecting an ammeter.
•
Jumper on: STM32F303VCT6 is powered (default).
•
Jumper off: an ammeter must be connected to measure the STM32F303VCT6 current.
If there is no ammeter, the STM32F303VCT6 is not powered.
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36
Hardware layout and configuration
6.10
OSC clock
6.10.1
OSC clock supply
UM1570
The following information indicates all configurations for clock supply selection:
•
•
•
•
6.10.2
MCO from ST-LINK. From MCO of the STM32F103C8T6. This frequency cannot be
changed, it is fixed at 8 MHz and connected to PF0-OSC_IN of the STM32F303VCT6.
Configuration needed:
–
SB12 closed, SB17 open, R33 removed
–
SB18, R32, C22, C23, X2 = do not care
Oscillator on board. From X2 crystal (not provided). For typical frequencies and its
capacitors and resistors, refer to the STM32F303VCT6 Datasheet. Configuration
needed:
–
SB12, SB17, SB18 open
–
R32, R33, C22, C23, X2 soldered
Oscillator from external PF0. From external oscillator through pin 5 of the P2
connector. Configuration needed:
–
SB12 open, SB17 closed, R33 removed
–
SB18, R32, C22, C23, X2 = do not care
No external oscillator. From Internal oscillator HSI only. PF0 and PF1 can be used as
GPIO. Configuration needed:
–
SB12 open, SB17 closed, SB18 closed, R32 removed, R33 removed
–
C22, C23, X2 = do not care
OSC 32 kHz clock supply
The following information indicates all the configurations for the 32 kHz clock supply
selection:
•
•
•
20/37
Oscillator on board. From X3 Crystal (not provided). Configuration needed:
–
SB14 open, SB16 open.
–
R29, R30, C14, C26, X3 soldered.
Oscillator from external PC14. From external oscillator through the pin 7 of P2
connector. Configuration needed:
–
SB14 open, R29 removed
–
SB16, R30, C14, C26, X3 = do not care
No external oscillator. PC14 and PC15 can be used as GPIO. Configuration needed:
–
SB14 closed, SB16 closed, R29 removed, R30 removed.
–
C14, C26, X3 = do not care.
DocID023594 Rev 4
UM1570
6.11
Hardware layout and configuration
Solder bridges
Table 5. Solder bridges
State(1)
Description
SB17,18
(X1 crystal) (2)
OFF
X1, C22, C23, R32 and R33 provide a clock. PF0, PF1 are disconnected from P2.
ON
PF0, PF1 are connected to P2 (R32 and R33 must not be fitted).
SB1,3,5,8 (default)
ON
Reserved, do not modify
SB2,4,6,9 (reserved)
OFF
Reserved, do not modify
SB14,16
(X3 crystal)
OFF
X3, C14, C26, R29 and R30 deliver a 32 KHz clock. PC14, PC15 are not
connected to P2.
ON
PC14, PC15 are only connected to P2. Remove only R26, R29
SB23
(B2-RESET)
ON
B2 push-button is connected to NRST of STM32F303VCT6
OFF
B2 push-button is not connected to NRST of STM32F303VCT6
ON
B1 push-button is connected to PA0
OFF
B1 push-button is not connected to PA0
OFF
STM32F303VCT6 USART1 is not connected to ST-LINK, so VCP is disabled
(Default configuration on PCB version A or B).
ON
STM32F303VCT6 USART1 is connected to ST-LINK, so VCP is enabled (default
configuration on PCB version C and newer).
ON
NRST signal of connector CN3 is connected to NRST of STM32F303VCT6
OFF
NRST signal is not connected
ON
SWO signal of connector CN3 is connected to PB3
OFF
SWO signal is not connected
OFF
No incidence on NRST signal of STM32F103C8T6
ON
NRST signal of STM32F103C8T6 is connected to GND
ON
BOOT0 signal of STM32F303VCT6 is at level "0" through 510 ohm pull-down
OFF
BOOT0 signal of STM32F303VCT6 is at level "1" through 10K ohm pull-up (not
provided).
OFF
PA11 and PA12 are only used for USB USER and not connected to P2 to avoid
noise.
ON
PA11 and PA12 are connected to P2.
OFF
MCO signal of STM32F103C8T6 is not used.
ON
MCO clock signal from STM32F103C8T6 is connected to OSC_IN of
STM32F303VCT6.
Bridge
SB20
(B1-USER)
SB13,15
(RX,TX)
SB7
(NRST)
SB10
(SWO)
SB11
(STM_RST)
SB19
(BOOT0)
SB21,22
(USB USER)
SB12
(MCO)(2)
1. Default state is shown in bold.
2. If SB12 is ON, SB17 must be OFF and R33 removed to provide the clock source from the MCO correctly.
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Hardware layout and configuration
6.12
UM1570
Extension connectors
The male headers P1 and P2 can connect the STM32F3DISCOVERY to a standard
prototyping/wrapping board. STM32F303VCT6 GPIOs are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
Table 6. STM32F303VCT6 MCU pin description versus board function (1)
-
-
-
PA1
TIM2_CH2, G1_IO2,
USART2_RTS,
TIM15_CH1N
24
-
-
-
PA2
TIM2_CH3, G1_IO3,
USART2_TX,
COMP2_OUT,
TIM15_CH1,
AOP1_OUT
25
-
-
PA3
TIM2_CH4, G1_IO4,
USART2_RX,
TIM15_CH2
26
-
PA4
TIM3_CH2, G2_IO1,
SPI1_NSS,
SPI3_NSS/I2S3_WS,
USART2_CK
29
PA5
TIM2_CH1_ETR,
G2_IO2, SPI1_SCK
30
22/37
P2
23
P1
PA0
TIM2_CH1_ETR,
G1_IO1,
USART2_CTS,
COMP1_OUT,
TIM8_BKIN,
TM8_ETR
CN3
-
Power supply
-
Free I/O
-
OSC
14
USB
-
SWD
NRST
-
-
-
-
-
-
-
-
-
19
-
-
-
5
4
-
NRST
-
LED
-
-
-
Push-button
94
RESET
L3GD20
-
-
USER
LSM303DLHC
BOOT0
Main
function
-
-
-
-
-
-
-
12
-
-
-
-
-
-
-
-
-
9
-
-
-
-
-
-
-
-
-
-
14
-
-
-
-
-
-
-
-
-
-
-
11
-
-
-
-
-
-
-
-
-
-
-
-
16
-
-
-
SCL/SPC
Alternate function
VCP
Board function
LQFP100 pin number
MCU pin
-
-
-
-
-
-
-
-
15
-
DocID023594 Rev 4
UM1570
Hardware layout and configuration
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
PA10
TIM17_BKIN,
G4_IO2, I2C2_SDA,
TIM1_CH3,
USART1_RX,
COMP6_OUT,
TIM2_CH4,
TIM8_BKIN
69
P2
68
P1
PA9
G4_IO1, I2C2_SCL,
I2S3_MCK,
TIM1_CH2,
USART1_TX,
COMP5_OUT,
TIM15_BKIN,
TIM2_CH3
CN3
-
Power supply
-
Free I/O
67
OSC
PA8
MCO, I2C2_SMBAL,
I2S2_MCK,
TIM1_CH1,
USART1_CK,
COMP3_OUT,
TIM4_ETR
USB
-
SWD
-
LED
32
Push-button
PA7
TIM17_CH1,
TIM3_CH2, G2_IO4,
TIM8_CH1N,
SPI1_MOSI,
TIM1_CH1N,
COMP2_OUT
L3GD20
-
SAO/SDO
-
-
-
-
-
-
-
-
-
18
-
SDA/SDI/SDO
LSM303DLHC
31
-
-
-
-
-
-
-
-
17
-
-
-
-
-
-
-
-
-
-
-
45
USART1_TX
PA6
TIM16_CH1,
TIM3_CH1, G2_IO3,
TIM8_BKIN,
SPI1_MISO,
TIM1_BKIN,
AOP2_OUT,
COMP1_OUT
Main
function
-
-
-
-
-
-
-
-
-
-
-
44
USART1_RX
Alternate function
VCP
Board function
LQFP100 pin number
MCU pin
-
-
-
-
-
-
-
-
-
-
-
43
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36
Hardware layout and configuration
UM1570
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
VCP
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
PA11
TIM1_CH1N,
USART1_CTS,
COMP1_OUT,
CAN_RX,
TIM4_CH1,
TIM1_CH4_BKIN2,
USBDM
70
-
-
-
-
-
-
DM
-
-
-
-
-
42
PA12
TIM16_CH1,
TIM1_CH2N,
USART1_RTS,
COMP2_OUT,
CAN_TX, TIM4_CH2,
TIM1_ETR, USBDP
71
-
-
-
-
-
-
DP
-
-
-
-
-
41
PA13
JTMS-SWDAT,
TIM16_CH1N,
G4_IO3, IR-Out,
USART3_CTS,
TIM4_CH3
72
-
-
-
-
-
SWDIO
-
-
-
-
4
-
40
PA14
JTCK-SWCLK,
G4_IO4, I2C1_SDA,
TIM8_CH2,
TIM1_BKIN,
USART2_TX
76
-
-
-
-
-
SWCLK
Board function
LQFP100 pin number
MCU pin
-
-
-
-
2
-
37
PA15
JTDI,
TIM2_CH1_ETR,
TIM8_CH1,
I2C1_SCL,
SPI1_NSS,
SPI3_NSS/I2S3_WS,
USART2_RX,
TIM1_BKIN
77
-
-
-
-
-
-
-
-
-
-
-
-
38
PB0
TIM3_CH3, G3_IO2,
TIM8_CH2N,
TIM1_CH2N
35
-
-
-
-
-
-
-
-
-
-
-
22
-
Main
function
24/37
Alternate function
DocID023594 Rev 4
UM1570
Hardware layout and configuration
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
Alternate function
VCP
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
PB1
TIM3_CH4, G3_IO3,
TIM8_CH3N,
TIM1_CH3N,
COMP4_OUT,
AOP3_OUT
36
-
-
-
-
-
-
-
-
-
-
-
21
-
PB2
G3_IO4
37
-
-
-
-
-
-
-
-
-
-
-
24
-
PB3
JTDO/TRACESWO,
TIM2_CH2,
TIM4_ETR, G5_IO1,
TIM8_CH1N,
SPI1_SCK,
SPI3_SCK/I2S3_CK,
USART2_TX,
TIM3_ETR
89
-
-
-
-
-
SWO
-
-
-
-
6
-
26
PB4
NJTRST,
TIM16_CH1,
TIM3_CH1, G5_IO2,
TIM8_CH2N,
SPI1_MISO,
SPI3_MISO/I2S3_DI
N,USART2_RX,
TIM17_BKIN
90
-
-
-
-
-
-
-
-
-
-
-
-
23
PB5
TIM16_BKIN,
TIM3_CH2,
TIM8_CH3N,
I2C1_SMBAL,
SPI1_MOSI,
SPI3_MOSI/I2S3_D
OUT, USART2_CK,
TIM17_CH1
91
-
-
-
-
-
-
-
-
-
-
-
-
24
PB6
TIM16_CH1N,
TIM4_CH1, G5_IO3,
I2C1_SCL,
TIM8_CH1,
TIM8_ETR_BKIN2,
USART1_TX
92
-
SCL
Board function
LQFP100 pin number
MCU pin
-
-
-
-
-
-
-
-
-
-
21
Main
function
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36
Hardware layout and configuration
UM1570
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
P1
P2
PB11
CN3
TIM2_CH3, SYNCH,
USART3_TX
Power supply
PB10
Free I/O
96
OSC
PB9
TIM17_CH1,
TIM4_CH4,
I2C1_SDA, IR-OUT,
CAN_TX, TIM8_CH3
USB
-
SWD
95
LED
PB8
TIM16_CH1,
TIM4_CH3, SYNCH,
I2C1_SCL,
COMP1_OUT,
CAN_RX,
TIM8_CH2,
TIM1_BKIN
Push-button
-
L3GD20
93
LSM303DLHC
PB7
TIM17_CH1N,
TIM4_CH2, G5_IO4,
I2C1_SDA,
TIM8_BKIN,
USART1_RX,
TIM3_CH4
SDA
Alternate function
VCP
Board function
LQFP100 pin number
MCU pin
-
-
-
-
-
-
-
-
-
-
22
-
-
-
-
-
-
-
-
-
-
-
17
-
-
-
-
-
-
-
-
-
-
-
-
18
47
-
-
-
-
-
-
-
-
-
-
-
34
-
TIM2_CH4, G6_IO1,
USART3_RX,
COMP2_OUT
48
-
-
-
-
-
-
-
-
-
-
-
33
-
PB12
G6_IO2,
I2C2_SMBAL,
SPI2_NSS/I2S2_WS,
TIM1_BKIN,
USART3_CK,
AOP4_OUT
51
-
-
-
-
-
-
-
-
-
-
-
36
-
PB13
G6_IO3,
SPI2_SCK/I2S2_CK,
TIM1_CH1N,
USART3_CTS
52
-
-
-
-
-
-
-
-
-
-
-
35
-
Main
function
26/37
DocID023594 Rev 4
UM1570
Hardware layout and configuration
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
Alternate function
VCP
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
Board function
LQFP100 pin number
MCU pin
PB14
TIM15_CH1,
G6_IO4,
SPI2_MISO/I2S2_DI
N,TIM1_CH2N,
USART3_RTS
53
-
-
-
-
-
-
-
-
-
-
-
38
-
PB15
TIM15_CH2,
TIM15_CH1N,
TIM1_CH3N,
SPI2_MOSI/
I2S2_DOUT
54
-
-
-
-
-
-
-
-
-
-
-
37
-
Main
function
PC0
-
15
-
-
-
-
-
-
-
-
-
-
-
6
-
PC1
-
16
-
-
-
-
-
-
-
-
-
-
-
5
-
PC2
COMP7_OUT
17
-
-
-
-
-
-
-
-
-
-
-
8
-
PC3
TIM1_BKIN2
18
-
-
-
-
-
-
-
-
-
-
-
7
-
PC4
USART1_TX
33
-
-
-
-
-
-
-
-
-
-
-
20
-
PC5
G3_IO1,
USART1_RX
34
-
-
-
-
-
-
-
-
-
-
-
19
-
PC6
TIM3_CH1,
TIM8_CH1,
I2S2_MCK,
COMP6_OUT
63
-
-
-
-
-
-
-
-
-
-
-
47
-
PC7
TIM3_CH2,
TIM8_CH2,
I2S3_MCK,
COMP5_OUT
64
-
-
-
-
-
-
-
-
-
-
-
48
-
PC8
TIM3_CH3,
TIM8_CH3,
COMP3_OUT
65
-
-
-
-
-
-
-
-
-
-
-
-
47
PC9
TIM3_CH4,
TIM8_CH4_BKIN2,
COMP3_OUT
66
-
-
-
-
-
-
-
-
-
-
-
-
46
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36
Hardware layout and configuration
UM1570
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
PC10
TIM8_CH1N,
UART4_TX,
SPI3_SCK/I2S3_CK,
USART3_TX
78
-
-
-
-
-
-
-
-
-
-
-
-
35
PC11
TIM8_CH2N,
UART4_RX,
SPI3_MISO/I2S3_DI
N,USART3_RX
79
-
-
-
-
-
-
-
-
-
-
-
-
36
PC12
TIM8_CH3N,
UART5_TX,
SPI3_MOSI/
I2S3_DOUT,
USART3_CK
80
-
-
-
-
-
-
-
-
-
-
-
-
33
PC13
TIM1_CH1N
7
-
-
-
-
-
-
-
-
-
-
-
-
10
PC14
OSC32_IN
8
-
-
-
-
-
-
-
-
-
-
-
7
PC15
OSC32_OUT
9
-
-
-
-
-
-
-
-
-
-
-
8
PD0
CAN_RX
81
-
-
-
-
-
-
-
-
-
-
-
-
34
PD1
TIM8_CH4_BKIN2,
CAN_TX
82
-
-
-
-
-
-
-
-
-
-
-
-
31
PD2
TIM3_ETR,
TIM8_BKIN,
UART5__RX
83
-
-
-
-
-
-
-
-
-
-
-
-
32
PD3
TIM2_CH1_ETR,
USART2_CTS
84
-
-
-
-
-
-
-
-
-
-
-
-
29
PD4
TIM2_CH2,
USART2_RTS
85
-
-
-
-
-
-
-
-
-
-
-
-
30
Main
function
28/37
DocID023594 Rev 4
OSC32_OUT OSC32_IN
Alternate function
VCP
Board function
LQFP100 pin number
MCU pin
UM1570
Hardware layout and configuration
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
VCP
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
PD5
USRT2_TX
86
-
-
-
-
-
-
-
-
-
-
-
-
27
PD6
TIM2_CH4,
USART2_RX
87
-
-
-
-
-
-
-
-
-
-
-
-
28
PD7
TIM2_CH3,
USART2_CK
88
-
-
-
-
-
-
-
-
-
-
-
-
25
PD8
USART3_TX
55
-
-
-
-
-
-
-
-
-
-
-
40
-
PD9
USART3_RX
56
-
-
-
-
-
-
-
-
-
-
-
39
-
PD10
USART3_CK
57
-
-
-
-
-
-
-
-
-
-
-
42
-
PD11
USART3_CTS
58
-
-
-
-
-
-
-
-
-
-
-
41
-
PD12
TIM4_CH1, G8_IO1,
USART3_RTS
59
-
-
-
-
-
-
-
-
-
-
-
44
-
PD13
TIM4_CH2, G8_IO2
60
-
-
-
-
-
-
-
-
-
-
-
43
-
PD14
TIM4_CH3, G8_IO3
61
-
-
-
-
-
-
-
-
-
-
-
46
-
PD15
TIM4_CH4, G8_IO4,
SPI2_NSS
62
-
-
-
-
-
-
-
-
-
-
-
45
-
PE0
TIM4_ETR,
TIM16_CH1,
USART1_TX
97
-
-
INT1
-
-
-
-
-
-
-
-
-
15
PE1
TIM17_CH1,
USART1_RX
98
-
-
DRDY/INT2
-
-
-
-
-
-
-
-
-
16
PE2
TRACECK,
TIM3_CH1, G7_IO1
1
-
DRDY
-
-
-
-
-
-
-
-
-
-
13
PE3
TRACED0,
TIM3_CH2, G7_IO2
2
-
-
CS_I2C/SPI
-
-
-
-
-
-
-
-
-
14
PE4
TRACED1,
TIM3_CH3, G7_IO3
3
-
INT1
-
Board function
LQFP100 pin number
MCU pin
-
-
-
-
-
-
-
-
-
11
Main
function
Alternate function
DocID023594 Rev 4
29/37
36
Hardware layout and configuration
UM1570
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
PE8
TIM1_CH1N
39
PE9
TIM1_CH1
PE10
-
-
-
-
-
-
-
-
12
-
-
-
-
-
-
-
-
-
-
-
9
-
-
-
-
-
-
-
-
-
-
23
-
-
-
-
-
-
-
-
-
-
-
26
-
40
-
-
-
-
-
-
-
-
-
-
25
-
TIM1_CH2N
41
-
-
-
-
-
-
-
-
-
-
28
-
PE11
TIM1_CH2
42
-
-
-
-
-
-
-
-
-
-
27
-
PE12
TIM1_CH3N
43
-
-
-
-
-
-
-
-
-
-
30
-
PE13
TIM1_CH3
44
-
-
-
-
-
-
-
-
-
-
29
-
PE14
TIM1_CH4_BKIN2
45
-
-
-
-
-
-
-
-
-
-
32
-
PE15
TIM1_BKIN,
USART3_RX
46
-
-
-
-
-
-
-
-
-
-
31
-
PF0
OSC_IN, I2C2_SDA,
TIM1_CH3N
12
-
-
-
-
-
-
-
-
-
-
-
5
PF1
OSC_OUT,
I2C2_SCL
13
-
-
-
-
-
-
-
-
-
-
-
6
30/37
DocID023594 Rev 4
OSC_OUT OSC_IN
-
Main
function
LD6/
LD8/
LD10/ LD9/
LD7/
LD5/
LD3/ LD4/
GREEN ORANGE RED BLUE GREEN ORANGE RED BLUE
P2
-
P1
38
CN3
TIM1_ETR
Power supply
PE7
Free I/O
-
OSC
5
USB
TRACED3
SWD
PE6
LED
-
Push-button
4
L3GD20
TRACED2,
TIM3_CH4, G7_IO4
-
LSM303DLHC
PE5
INT2
Alternate function
VCP
Board function
LQFP100 pin number
MCU pin
UM1570
Hardware layout and configuration
Table 6. STM32F303VCT6 MCU pin description versus board function (continued)(1)
LSM303DLHC
L3GD20
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1
P2
PF2
Alternate function
VCP
Main
function
Board function
LQFP100 pin number
MCU pin
-
19
-
-
-
-
-
-
-
-
-
-
-
10
-
COMP1_OUT
27
-
-
-
-
-
-
-
-
-
-
-
13
-
PF6
TIM4_CH4,
I2C2_SCL,
USART3_RTS
73
-
-
-
-
-
-
-
-
-
-
-
-
39
PF9
TIM15_CH1,
SPI2_SCK
10
-
-
-
-
-
-
-
-
-
-
-
-
3
PF10
TIM15_CH2,
SPI2_SCK
11
-
-
-
-
-
-
-
-
-
-
-
-
4
-
-
-
-
-
-
-
-
-
-
-
-
5V
-
-
1
-
-
-
-
-
-
-
-
-
-
-
-
5V
-
-
2
-
-
-
-
-
-
-
-
-
-
-
-
3V
-
1
-
-
-
-
-
-
-
-
-
-
-
-
-
3V
-
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
49
49
-
-
-
-
-
-
-
-
-
-
-
-
GND GND GND VDD
PF4
-
50
50
1. The cells marked in grey identify connections between MCU pin function and the board function.
DocID023594 Rev 4
31/37
36
STM32F3DISCOVERY electrical schematics
Figure 9. STM32F3DISCOVERY top level
1
2
3
ST_LINK_V2.SCHDOC
U_ST_LINK
STM32F3_USART1_RX
STM32F3_USART1_TX
PC5
PC4
PC5
PC4
A
MCO
PA14
PA13
PB3
NRST
U_STM32Fx
STM32Fx.SchDoc
MCO
PA14
PA13
PB3
TCK/SWCLK
TMS/SWDIO
T_SWO
NRST
T_NRST
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
DocID023594 Rev 4
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
B
P1
3V
C
3V
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
PC1
PC3
PA1
PA3
PF4
PA5
PA7
PC5
PB1
PE7
PE9
PE11
PE13
PE15
PB11
PB13
PB15
PD9
PD11
PD13
PD15
PC6
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
3V
NRST
PC0
PC2
PF2
PA0
PA2
PA4
PA6
PC4
PB0
PB2
PE8
PE10
PE12
PE14
PB10
PB12
PB14
PD8
PD10
PD12
PD14
PC7
4
3V
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15
BOOT0
Header 25X2
NRST
U_IO Peripherals
IO Peripherals.SchDoc
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15
PF0
PF1
PF2
PF4
PF6
PF9
PF10
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PE0
PE1
PE2
PE3
PE4
PE5
PE0
PE1
PE2
PE3
PE4
PE5
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
NRST
NRST
PA0
PA0
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
A
PA5
PA6
PA7
PA5
PA6
PA7
PA11
PA12
PA11
PA12
PB6
PB7
PB6
PB7
P2
5V
PF0
PF1
PF2
PF4
PF6
PF9
PF10
5V
PF9
PF0
PC14
PE6
PE4
PE2
PE0
PB8
BOOT0
PB6
PB4
PD7
PD5
PD3
PD1
PC12
PC10
PA14
PF6
PA12
SB21
PA10
PA8
PC8
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
5V
PF10
PF1
PC15
PC13
PE5
PE3
PE1
PB9
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
5V
B
VDD
PB7
PB5
PB3
PD6
PD4
PD2
PD0
PC11
PA15
PA13
PA11
PA9
PC9
C
SB22
Header 25X2
MCO
MCO
Rev D.1 --> PCB label MB1035 D-01, only silkscreen modification
STM32F303C-DISC1 replaced by STM32F3DISCOVERY
Rev C.1 --> PCB label MB1035 C-01, SB13 and SB15 closed,
STM32F103C8T6 replaced by STM32F103CBT6, ST-LINK/V2-B
Rev B.1 --> PCB B-00, reverse LEDs Colors Red/Blue on sheet 4, only a picture modification
Rev B.0 --> PCB B-00, added 2 SB to isolate USB USER
Rev A.0 --> First Version
BOOT0
NRST
D
D
STMicroelectronics
STM32F3DISCOVERY
Number:MB1035 Rev: D.1(PCB.SCH)
2
3
Date: 6/8/2016
4
Sheet 1
of
4
UM1570
Title:
1
STM32F3DISCOVERY electrical schematics
32/37
7
1
2
3
UM1570
Figure 10. STM32F3DISCOVERY ST-LINK/V2 (SWD only)
4
TCK/SWCLK
TMS/SWDIO
PA14
PA13
NRST
PB3
T_NRST
8MHz
R23
100K
OSC_IN
OSC_OUT
STM_RST
B
C12
100nF
3V
4K7
R25
4K7
AIN_1
PC5
SB13
TX
RX
JP4
STLINK_RX
PC4
VDD_2
VSS_2
JTMS/SWDIO
PA12
PA11
PA10
PA9
PA8
PB15
PB14
PB13
PB12
3V
T_JTCK
R20
3V
SB2
SB3
SB4
SB5
SB6
SB8
SB9
STM_JTCK
SWCLK
STM_JTMS
SWDIO
T_JTMS
22
R21
T_NRST
22
R22
T_SWO
22
R48
RC Must be very close to STM32F103 pin 29
100
T_JTMS
T_JTCK
SB1
22
Header 6
STM_JTMS
USB_DP
USB_DM
T_SWO
LED_STLINK
A
MCO
B
MCO
CN4
C38
20pF
R26
100
Jumpers ON --> DISCOVERY Selected
Jumpers OFF --> ST-LINK Selected
Not Fitted
T_SWDIO_IN
Wired on Solder Side
Idd
3V
3V
JP3
LD2
JP2
VDD
COM
R6
Red
2
1
100
R1
1K
SB15
STM32F3_USART1_TX
36
35
34
33
32
31
30
29
28
27
26
25
R19
1
2
3
4
5
6
U2
STM32F103CBT6
RESERVED
100
13
14
15
16
17
18
19
20
21
22
23
24
STM32F3_USART1_RX
AIN_1
BAT60JFILM
48
47
46
45
44
43
42
41
40
39
38
37
VBAT
PC13
PC14
PC15
OSCIN
OSCOUT
NRST
VSSA
VDDA
PA0
PA1
PA2
STLINK_TX
SB11
R7
JP1
R5
LED_STLINK
3
4
R2
0
100
C
3V
C
_Green
Not Fitted
LD1
RED
LD_BICOLOR_CMS
PWR
5V
EXT_5V, Input or Output
D2
U5V
5V
BAT60JFILM
VCC
DD+
ID
GND
SHELL
1
2
3
4
5
0
R12
R14
R13
R11
1K5
3V
0
USB_DM
0
USB_DP
100K
C10
100nF
C5
100nF
C8
100nF
D3
Vin
Vout
5
3V
3 INH
BAT60JFILM
C3
C6
GND
BYPASS
1μF_X5R_0603
1μF_X5R_0603
EXT_3V, Input or Output
LD3985M33R
C1
C2
C4
100nF
10nF_X7R_0603
100nF
C13
100nF
2
U5V
CN1
1
3V
4
USB ST-LINK
U1
5075BMR-05-SM
D
D
STMicroelectronics
Title:
STM32F3DISCOVERY ST-LINK/V2-B (SWD only)
Number:MB1035 Rev: D.1(PCB.SCH)
1
2
3
Date: 6/8/2016
4
Sheet 2
of
4
33/37
STM32F3DISCOVERY electrical schematics
DocID023594 Rev 4
R24
1
2
3
4
5
6
7
8
9
10
11
12
D1
SWD
1
2
3
4
2
DEFAULT
SWIM_IN
SWIM
C7
20pF
X1
1
SB10
CN3
3V
VDD_3
VSS_3
PB9
PB8
BOOT0
PB7
PB6
PB5
PB4/JNTRST
PB3/JTDO
PA15/JTDI
JTCK/SWCLK
C9
20pF
3V
R3
10K
SWD
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2/BOOT1
PB10
PB11
VSS_1
VDD_1
Not Fitted
STM_JTCK
100K
SWIM_IN
SWIM
10K
Board Ident: PC13=0
SB7
T_SWO
Not Fitted
SWIM_IN
SWIM_RST
SWIM_RST_IN
R8
R10
T_JRST
10K
T_JTCK
T_JTDO
T_JTDI
T_NRST
A
R9
1
2
3
4
U4A
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
A
MCO
PF0
MCO
SB12
PF0-OSC_IN
R33
0
PF1-OSC_OUT
R32
220
1
Must be close to the Crystal
PF1
C23
20pF
2
SB17
X2
8MHz
C22
20pF
SB18
Not Fitted
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
C14
DocID023594 Rev 4
PC15-OSC32_OUT
PC15
R30
0
3
0
4
R29
SB14
2
PC14-OSC32_IN
PC14
1
B
6.8pF
X3
MC306-G-06Q-32.768
C26
SB16
Not Fitted
6.8pF
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
23
24
25
26
29
30
31
32
67
68
69
70
71
72
76
77
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
35
36
37
89
90
91
92
93
95
96
47
48
51
52
53
54
PF0-OSC_IN
PF1-OSC_OUT
PF2
PF2
PF4
PF6
C
PF9
PF10
U4B
VDD
50
75
28
L1
fcm1608-0603
C20
1uF
C21
100nF
C16
1uF
C17
100nF
100
22
R31
0
D
R34
C32
100nF
C27
100nF
C30
100nF
21
C31
100nF
C29
100nF
C28
100nF
C25
100nF
6
0
VDD2
VDD3
VDD4
VSS3
VSS2
VDDA_VDD1 VSSA_VSS1
74
49
NRST
BOOT0
VDD
R36
10K
99
R35
12
13
19
PF4
27
PF6
73
PF9
PF10
10
11
NRST
14
BOOT0
94
510
PA0 PC15-OSC32_OUT
PA1
PC14-OSC32_IN
PA2
PC13-WKUP2
PA3
PC12
PA4
PC11
PA5
PC10
PA6
PC9
PA7
PC8
PA8
PC7
PA9
PC6
PA10
PC5
PA11
PC4
PA12
PC3
PA13
PC2
PA14
PC1
PA15
PC0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PD15
PD14
PD13
PD12
PD11
PD10
PD9
PD8
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PF0-OSC_IN
PF1-OSC_OUT
PF2
PF4
PF6
PF9
PF10
NRST
BOOT0
PE15
PE14
PE13
PE12
PE11
PE10
PE9
PE8
PE7
PE6-WKUP3
PE5
PE4
PE3
PE2
PE1
PE0
9
8
7
80
79
78
66
65
64
63
34
33
18
17
16
15
PC15-OSC32_OUT
PC14-OSC32_IN
PC13
PC13
PC12
PC12
PC11
PC11
PC10
PC10
PC9
PC9
PC8
PC8
PC7
PC7
PC6
PC6
PC5
PC5
PC4
PC4
PC3
PC3
PC2
PC2
PC1
PC1
PC0
PC0
62
61
60
59
58
57
56
55
88
87
86
85
84
83
82
81
PD15
PD14
PD13
PD12
PD11
PD10
PD9
PD8
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
46
45
44
43
42
41
40
39
38
5
4
3
2
1
98
97
PE15
PE14
PE13
PE12
PE11
PE10
PE9
PE8
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
A
PD15
PD14
PD13
PD12
PD11
PD10
PD9
PD8
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
B
PE15
PE14
PE13
PE12
PE11
PE10
PE9
PE8
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
C
STM32F303VCT6
SB19
VDDadc
VREF+
VSSadc/VREF-
20
Not Fitted
VBAT
STM32F303VCT6
C24
1uF
D
STMicroelectronics
Title:
STM32F3DISCOVERY - STM32F303VCT6 MCU
Number:MB1035 Rev: D.1(PCB.SCH)
1
STM32F3DISCOVERY electrical schematics
34/37
Figure 11. STM32F3DISCOVERY STM32F303VCT6 MCU
2
3
Date: 6/8/2016
Sheet 3
of
4
4
UM1570
1
2
3
4
VDD
D5
VDD
R37
Not Fitted
BAT60JFILM
CN2
VCC
DD+
ID
GND
SHELL
R16
R18
R17
R15
1K5
22
22
100K
C33
3V
USB_DM
USB_DP
PA11
PA12
100nF
PA0
PE15
R43
PE15
SB20
PE12
PE11
C
PE10
PE9
PE8
N
LD8
Orange
1
2
R
SB23
C37
R4
220K
100nF
RESET Button
3V
R45
PE14
R28
10K
680
LD10
Red
R46
1
680
LD9
Blue
R47
1
680
LD7
Green
R44
1
510
LD5
Orange
R42
1
680
LD3
Red
R41
1
680
LD4
Blue
R40
1
680
PE13
PE12
PE11
PE10
PE9
PE8
B
PB6
PB7
PE5
PE4
O
2
R27
10K
PB6
PB7
PE5
PE4
C11
VDD_IO
SCL
SDA
INT2
INT1
C1
GND
VDD
SETC
SETP
GND
GND
DRDY
NC
14
13
12
11
10
9
8
10uF
C15
220nF
C19
PE2
PE2
100nF
LSM303DLHC
2
2
B
C18
U3
1
2
3
4
5
6
7
W
G
G
4.7uF
E
3V
U5
2
O
B
2
R
2
SPI1_SCK
SPI1_MOSI
SPI1_MISO
CS_I2C/SPI
MEMS_INT2
MEMS_INT1
PA5
PA7
PA6
PE3
PE1
PE0
S
PA5
PA7
PA6
PE3
PE1
PE0
1
2
3
4
5
6
7
8
VDD_IO
SCL/SPC
SDA/SDI/SDO
SA0/SDO
CS_I2C/SPI
DRDY/INT2
INT1
GND
VDD
VDD
C1
GND
GND
GND
GND
GND
16
15
14
13
12
11
10
9
C
C35
100nF
C36
C34
10nF/25V
10uF
L3GD20
LEDs
MEMS
Silkscreen for Gyroscope and E-compass with accelerometer
D
D
STMicroelectronics
Title:
STM32F3DISCOVERY Peripherals
Number:MB1035 Rev: D.1(PCB.SCH)
1
2
3
Date: 6/8/2016
4
Sheet 4
of
4
35/37
STM32F3DISCOVERY electrical schematics
DocID023594 Rev 4
PE13
2
A
NRST
NRST
330
USER & WAKE-UP Button
LD6
Green
1
R39
100K
510
B
PE14
R38
PA0
5075BMR-05-SM
3
2
1
2
3
4
5
0
SW-PUSH-CMS
B2
BAT60JFILM
SW-PUSH-CMS
B1
100
4
1
5V
4
1
D4
3
2
USB User
A
UM1570
Figure 12. STM32F3DISCOVERY Peripherals
Revision history
8
UM1570
Revision history
Table 7. Document revision history
Date
Revision
10-Sep-2012
1
Initial release.
20-Sep-2012
2
Added Figure 7 on page 11 and updated Figure 12 on page 35
07-Feb-2013
3
Updated Section 6.2: Embedded ST-LINK/V2 (or V2-B): removed
WLCSP package, Sigma Delta ADC, CEC, updated timers and
SPI/I²Ss.
4
To introduce the information that boards come with ST-LINK/V2
or ST-LINK/V2-B:
Updated Section 1: Features, Section 3: Ordering information,
Section 6.2.4: Using ST-LINK/V2 (or V2-B) to program/debug the
STM32F303VCT6 on board, Section 6.2.5: Using ST-LINK/V2 (or
V2-B) to program/debug an external STM32 application, Table 5:
Solder bridges, Table 6: STM32F303VCT6 MCU pin description
versus board function.
Added Section 2: Product marking, Section 6.2.1: Drivers,
Section 6.2.2: ST-LINK/V2 (or V2-B) firmware upgrade,
Section 6.2.3: VCP configuration.
21-Jul-2016
36/37
Changes
DocID023594 Rev 4
UM1570
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acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or
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