Link It 7697 HDK Users Guide
User Manual: Pdf
Open the PDF directly: View PDF 
.
Page Count: 14
| Download | |
| Open PDF In Browser | View PDF |
LinkIt 7697 HDK v1.0 User's Guide Version: 1.0 Release date: 5 May 2017 © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). MediaTek cannot grant you permission for any material that is owned by third parties. You may only use or reproduce this document if you have agreed to and been bound by the applicable license agreement with MediaTek (“License Agreement”) and been granted explicit permission within the License Agreement (“Permitted User”). If you are not a Permitted User, please cease any access or use of this document immediately. Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. THIS DOCUMENT IS PROVIDED ON AN “AS-IS” BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES OF ANY KIND AND SHALL IN NO EVENT BE LIABLE FOR ANY CLAIMS RELATING TO OR ARISING OUT OF THIS DOCUMENT OR ANY USE OR INABILITY TO USE THEREOF. Specifications contained herein are subject to change without notice. LinkIt 7697 HDK v10 User's Guide Document Revision History Revision Date Description 1.0 5 May 2017 Initial release © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 1 LinkIt 7697 HDK v10 User's Guide Table of Contents Introduction ......................................................................................................................................... 5 Overview ............................................................................................................................................ 5 Get Started with the HDK ..................................................................................................................... 6 2.1. 2.2. 2.3. Board configuration ........................................................................................................................... 6 Installing the driver for Windows ...................................................................................................... 7 Updating the flash.............................................................................................................................. 8 Hardware Features ..............................................................................................................................10 Schematics ..........................................................................................................................................11 Pin-Out Diagram..................................................................................................................................13 © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 2 LinkIt 7697 HDK v10 User's Guide Lists of Tables and Figures Table 1. Comparison between Flash tool and mt76x7-uploader ........................................................................... 8 Figure 1. LinkIt 7697 HDK v1.0 ............................................................................................................................... 5 Figure 2. Front view of the HDK (created in Fritzing) ............................................................................................. 6 Figure 3. Communication between PC and the HDK .............................................................................................. 7 Figure 4. The COM port allocation for LinkIt 7697 HDK ......................................................................................... 8 © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 3 LinkIt 7697 HDK v10 User's Guide Introduction Overview MediaTek LinkIt™ 7697 hardware development kit (HDK) is part of LinkIt development platform for RTOS and is based on a highly integrated MediaTek MT7697 SOC with an application processor, a low power 1x1 11n singleband Wi-Fi subsystem, a Bluetooth Low Energy subsystem and a Power Management Unit. The application processor subsystem contains ARM Cortex-M4 with floating point unit microprocessor. The HDK supports peripherals, including UART, I2C, SPI, I2S, PWM, IrDA and auxiliary ADC. It also includes an embedded SRAM/ROM. The Wi-Fi subsystem contains 802.11b/g/n radio, baseband and MAC that are designed to meet both the low power and high throughput application requirements. It runs on a 32-bit RISC CPU that could fully offload the application processor. The Bluetooth Low Energy subsystem contains the Bluetooth radio, baseband and link controller and uses the same 32-bit RISC CPU for the Bluetooth protocols. The LinkIt 7697 HDK is shown in Figure 1. The main features of this HDK are: • Breadboard compatible form factor. Developers can use breadboards to connect peripherals with this HDK conveniently to build their applications. • Auxiliary LED and buttons to reset the board and to program a user-defined functionality. • An on-board USB-to-UART conversion chip to access logs and conveniently update the firmware. • Serial Wire Debug (SWD) interface. • mt76x7-uploader tool, enables the HDK to switch between flash normal mode and recovery mode automatically without user intervention. • Developers can program the board with the native LinkIt SDK using GCC, IAR embedded workbench, or Keil µVision IDE. Development with Arduino IDE is also supported. Figure 1. LinkIt 7697 HDK v1.0 © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 5 LinkIt 7697 HDK v10 User's Guide Get Started with the HDK This section covers the HDK configuration, driver installation and the update flow for the flash storage. 2.1. Board configuration The interfaces and modules are shown in Figure 2. Reset USB pin header UART RX LED UART TX LED CP2102N wrtnode7 module Micro-USB connector Power LED USR LED User configurable button Figure 2. Front view of the HDK (created in Fritzing) 7 • wrtnode Wi-Fi and Bluetooth LE module: It equips the MT7697 Wi-Fi / BLE SOC and is ready to use with an on-board antenna and an I-PEX connector. Moreover, a 4MB flash is also included in this module. • CP2102N: A USB-to-UART bridge chipset made by Silicon Labs. It’s used during flash update process with the mt76x7-uploader tool and to switch between the flash normal mode and the flash recovery mode, automatically. • Micro-USB connector: Serves as a 5V power source to the HDK. Connect the HDK to a computer that has the CP2102N driver installed, to get UART messages (from UART0 on MT7697) using a terminal program. • RX / TX LEDs: LEDs used to indicate the transmission states of the UART port (UART0). • PWR LED: This LED will light on while connecting to a power source. • USR LED: An LED used for user-defined behavior. It’s controlled by P7 pin (GPIO36). • RST button: Resets the chipset and is connected to the RST pin. While it’s pressed, it will be linked to the GND. • USR button: A button used for user-defined behavior. It’s connected to P6 pin (GPIO37). When it’s pressed, it will be linked to the 3V3 source. • USB pin header: It provides the same functionality as the micro-USB connector but in the form of pin headers. • MT7697 bootstrap pins: All MT7697 bootstrap pins except GPIO37 (used for Flash Access Mode control) are hidden from this HDK and not accessible through breakout headers. The Flash Access Mode has to two © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 6 LinkIt 7697 HDK v10 User's Guide configurations; normal mode and recovery mode. To set the HDK to Flash Recovery mode, use the USR button to pull up GPIO37. For more details, see section 2.3, “Updating the flash”. Note, that since GPIO37 is in the breakout header, if there is an external component connected to P6 (where GPIO37 is), the voltage level of that component might affect the boot-up sequence. Ensure P6 is clear or pulled low when the system powers on. • 2.2. If there is no 5V power source, this HDK can also work with 3.3V by simply connecting the 3V3 pin to a 3.3V power source. Installing the driver for Windows LinkIt 7697 HDK connects to your computer through the COM port interface. The COM port interface is provided by the on-board CP2102N USB-to-UART bridge chipset, which then connects to the UART0 port of the MT7697 chipset. The UART0 port can be used to program the flash memory attached to the MT7697 chipset. It can also be used as a communication channel for your application through terminal emulator program of your choice. The block diagram for the communication is shown in Figure 3: PC Arduino IDE LinkIt 7697 HDK CP2102N Driver Micro-USB Connector MT7697 SOC CP2102N UART0 Flash Memory Figure 3. Communication between PC and the HDK Since the board relies on CP2102N to provide the COM port functionality, you'll need to install a driver so that your computer can recognize it. And because the board uses the default USB VID and PID of the CP2102N, it’s required to install the official CP2102N driver from the vendor's website. After choosing the Download VCP option according to your operating system version and finishing the driver installation, use a micro-USB cable to connect the board to your computer. The onboard PWR LED should light up. Follow the steps below to confirm the driver is properly installed: • Open Device Manager from the control panel. • In the Ports (COM & LPT) section, an item named Silicon Labs CP210x USB to UART Bridge (COMnnn) should appear. The port number can be different on each computer. This is the COM port you'll be using to program and interact with the LinkIt 7697 HDK (see Figure 4). © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 7 LinkIt 7697 HDK v10 User's Guide Figure 4. The COM port allocation for LinkIt 7697 HDK 2.3. Updating the flash There are two tools provided for programming the flash storage: 1) The Flash tool inside the LinkIt SDK. It’s a Windows execution program providing the functionality to program and format the flash storage, see section 2.2.4.1, “Using the Flash Tool” of the LinkIt for RTOS development platform get started guide, for more details about using the Flash tool. 2) The mt76x7-uploader on MediaTek Labs’ GitHub page. It’s a Python script providing cross-platform implementation for the flash storage. For its usage guide, refer to the readme on the project page. Select the tool based on your development requirements (see Table 1). Table 1. Comparison between Flash tool and mt76x7-uploader Supported OS Recovery mode switching Flash contents read-back Format the flash storage Where to get Flash Tool Windows Manual Supported Supported LinkIt SDK package mt76x7-uploader Windows, Linux, macOS Automatic N/A N/A MediaTek Labs’ GitHub page One thing to be noted is that when using the Flash tool, switch the board into the Flash Recovery mode for the tool to operate properly. To switch the board into the Flash recovery mode: 1) Connect the board to a power source. 2) Press and hold the USR button. © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 8 LinkIt 7697 HDK v10 User's Guide 3) Click (press and release) the RST button. 4) Wait for 1 second and then release the USR button. After step 4, the board will go into the Flash Recovery mode and you can then use the Flash tool or the QA tool with it. If you choose the mt76x7-uploader to update the flash, the tool itself will handle the flash mode switch automatically without user intervention. © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 9 LinkIt 7697 HDK v10 User's Guide Hardware Features This section lists the LinkIt 7697 HDK features. For more detailed specification of MT7697, please refer to the MT7697 datasheet. • 192MHz ARM Cortex-M4 CPU with FPU support. • 352KB RAM. • 4MB Flash storage. • 802.11 b/g/n 2.4GHz Wi-Fi. • Bluetooth Low Energy support. • On-board chip antenna. • I-PEX connector provided. • CP2102N USB-to-UART convertor. • Passed FCC / CE certifications. • Support two operational power voltages: 5V and 3.3V. • Pin headers for 5V / 3.3V / GND / Reset / GPIO (18) / PWM (18) / UART (2 sets) / IR (1 set) / EINT (4) / I2S (1 set) / I2C (1 set) / SPI (1 set) / ADC (4) and USB UART (1 set). • Two buttons are provided. The RST button (connected to the RST pin) and the USR button (connected to the P6/GPIO37). • Four LEDs are provided. One is for the power indicator and one is for the user-defined behavior (controlled by P7/GPIO36). The other two are used for indicating the TX / RX status of UART0. • Breadboard compatible form factor for the pin pitch (2.54mm). © 2015 - 2017 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Page 10 LinkIt 7697 HDK v10 User's Guide Schematics 1 2 3 4 5 6 A A 3V3 5V USB_DUSB_D+ GND UART_TX GPIO28 GPIO32 GPIO29 GPIO30 GPIO31 GPIO57 GPIO58 R2 GPIO59 GPIO60 3V3 GND DNP 0R J4 1 2 3V3 3V3 2 1 1k C C5 10uF C8 R24 4.7k R25 4.7k USER button 311020045 3V3 B0 A1 A0 3 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 GPIO33 GPIO34 SYS_RST_N GPIO36 GPIO37 B GPIO39 GPIO57 GPIO58 GPIO59 GPIO60 3V3 10pF C9 10pF C10 C R23 Q1 GPIO37 1 GPIO36 R8 2 B1 47k Seeed Studio 2N7002 K3 100k 4 OrangeORANGE R7 100nF GPIO29 SYS_RST_N UART_RX GPIO27 GND GPIO35 GPIO33 GPIO34 SYS_RST_N GPIO36 GPIO37 GND GPIO38 GPIO39 GPIO57 GPIO58 GPIO59 GPIO60 3V3 GPIO28 GND GPIO36 GND GPIO00 GPIO01 GPIO02 GPIO03 GPIO04 GPIO05 GPIO06 GPIO07 GPIO24 GPIO25 GPIO26 RTC_3V3 GND 3V3 PMU_EN_WF GPIO33 GPIO1 U2 GPIO30 GPIO34 GPIO37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GPIO27 GPIO39 GPIO0 GPIO31 GPIO0 3V3 GND PMU_EN_RTC GPIO32 GPIO31 GPIO27 GPIO30 GPIO28 GPIO29 PMU_EN_WF GND UART_TX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 19 20 21 22 23 24 25 UART_RX B J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GPIO32 J1 GND D D TITLE: CC-BY-SA 1 2 3 © 2015 - 2017 MediaTek Inc. 4 Design: Date: Check: 2017/3/23 16:52 5 Vision: Page 11 This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. 6 LinkIt 7697 HDK v10 User's Guide 1 A 2 3 4 5 6 A V_USB 5V 1k R29 B 0R button 311020045 4 2 B1 B0 A1 A0 3 1 SYS_RST PWR 3 R10 R1 AGND GPIO1 SYS_RST_N PWR MODE 3V3 GREEN PGND 1 WLB1608-300T15 10uF EN 4 C26 FB L1 0.33uH 100K_1% AVIN 2 L4 10uF 6 SW 22K_1% R28 10uF 5 ETA3410 PVIN 9 C1 10uF 7 U6 C19 8 C21 C27 10uF 1A D4 DF2S6.8FS V_USB PAD F1 B 22R 3 8 7 VCC 5 6 C4 2*2 U1 CP2102N RESET DD+ VBUS VREGIN VIO VDD GND TXD RXD RTS CTS DTR DSR DCD RI/CLK TXLED/IO0 RXLED/IO1 RS485/IO2 WAKEUP/IO3 SUSPEND SUSPEND 21 20 19 18 23 22 24 1 14 13 12 11 15 17 R17 100R R18 100R UART_RX UART_TX R9 10k 10k R14 USB_D- 22R 9 4 USB_D+ R15 100nF D3 DF2S6.8FS C D1 DF2S6.8FS GND GND GND GND 1 2 3 4 P6 10uF 100nF VCC DM DP ID GND C2 C3 5 P1 P3 P4*2 D2 DF2S6.8FS V_USB J3 3V3 R26 VCC RTS DTR Q4 VCC 4.7k R6 SYS_RST_N R13 RED RTS R12 GREEN GPIO37 1k RX R4 10k Q2 S9013W Q3 S9013W C6 1uF DTR R3 10k TX Seeed Studio D D TITLE: CC-BY-SA 1 2 3 © 2015 - 2017 MediaTek Inc. C 1k Design: Date: 4 Check: 2017/3/23 16:52 5 Page 12 This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. Vision: 6 LinkIt 7697 HDK v10 User's Guide Pin-Out Diagram LinkIt 7697 TM GND POWER CONTROL DIGITAL ANALOG PWM SERIAL wrtnode7 Module INTERRUPT DEBUG PWM34 IR_TX GPIO33 2 2 GPIO34 )0& 2 IR_RX 2 GPIO39 PWM35 GND 8 456 RST 3V3 8 5V & USB_D- )0& & USB_D+ GND UART1_RX PWM19 GPIO27 I2C1_CLK PWM28 GPIO28 I2C1_DATA PWM29 GPIO32 SPI_CS0 PWM33 I2S_BCLK GPIO29 SPI_MOSI PWM30 I2S_MCLK GPIO30 SPI_MISO PWM31 I2S_FS GPIO31 SPI_SCK PWM32 I2S_TX/RX GPIO57 PWM36 ADC_IN0 GPIO58 PWM37 ADC_IN1 GPIO59 PWM38 ADC_IN2 SWD_DIO GPIO60 PWM39 ADC_IN3 SWD_CLK USR BTN EINT20 USR LED GND ADC input voltage range: 0~2.5V Reset Button CP2102N 754 754 294 4: 456 6: RST BTN 8 PWM22 2 EINT22 GPIO0 PWM20 2 PWM0 UART1_TX GPIO36 2 EINT0 GPIO37 2 GPIO3 46%A294 GPIO2 UART0_TX 2 UART0_RX PWM24 2 PWM23 EINT2 3V3 )0& 2 2 2 2 2 2 2 2 )0& GPIO37 is the bootstrap pin for Recovery/Normal mode GND User Button Micro USB © 2015 - 2017 MediaTek Inc. Module wrtnode7 by WRTnode MCU ARM Cortex-M4 with FPU 192Mhz RAM 352 KB Flash 4 MB Wi-Fi 802.11 b/g/n (2.4G) Bluetooth 4.2 LE Page 13 This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf Linearized : No Page Count : 14 PDF Version : 1.4 Title : Microsoft Word - LinkIt_7697_HDK_Users_Guide.docx Producer : Mac OS X 10.12.4 Quartz PDFContext Creator : Word Create Date : 2017:05:08 03:10:20Z Modify Date : 2017:05:08 03:10:20ZEXIF Metadata provided by EXIF.tools