OpenH743I C Standard STM32H7 Development Board

OpenH743I-C is an STM32 development board designed for the STM32H743IIT6 microcontroller, consists of the mother board and the MCU core board CoreH743I.

The OpenH743I-C supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with STM32 series microcontrollers.

What's on the mother board

1. MCU core board connector: for easily connecting the CoreH743I


2. Arduino interface: for connecting Arduino shields


3. DCMI interface: for connecting camera


4. 8-bit FMC interface: easily connects to peripherals such as NandFlash


5. ULPI interface: for connecting high-speed USB peripheral (the STM32H743I integrates USB HS controller without any PHY device)


6. LCD interface 1: for connecting 10.1inch LCD, 7inch LCD, 4.3inch LCD


7. LCD interface 2: for connecting 4.3inch LCD


8. SAI1 interface: for connecting audio modules


9. ICSP interface: Arduino ICSP


10. SPI interfaces:
    
    
    
    • easily connects to SPI peripherals such as DataFlash (AT45DBxx, W25QXX), SD card, MP3 module, etc.
    
    
    • easily connects to AD/DA modules (SPI1 features AD/DA alternative function)
    
    
    
    


11. Ethernet interface: for connecting Ethernet modules


12. I2S / I2C interface: easily connects to I2S peripherals such as audio module, etc.


13. USART1 connector: USB to UASRT via the onboard convertor CP2102 


14. QUADSPI interface: 4-wires SPI interface (the H7 series latest peripheral interface), for connecting serial Flash modules like W25QXX Board


15. SDMMC interface: for connecting Micro SD module, features much faster access speed rather than SPI


16. USART3 interface: easily connects to RS232, RS485, USB TO 232, etc.


17. CAN2 interface: for connecting CAN modules


18. CAN1 interface: for connecting CAN modules


19. I2C1/I2C4 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), 10 DOF IMU Sensor, etc.


20. MCU pins connector: all the MCU I/O ports are accessible on expansion connectors for further expansion


21. 5V DC jack


22. 5V/3.3V power input/output: usually used as power output, also common-grounding with other user board


23. Power supply switch: powered from 5VDC OR USB connection of the USART1


24. CP2102: USB to UART convertor


25. LEDs: convenient for indicating I/O status and/or program running state


26. Joystick: five positions


27. WAKE UP button: used as regular button, and/or wake up the STM32 MCU from sleep


28. Reset button


29. USART1 jumper


30. LED jumper
    
    
    
    • short the jumper to connect to default I/Os used in example code
    
    
    • open the jumper to connect to custom I/Os via jumper wires
    
    
    
    


31. KEY jumper
    
    
    
    • short the jumper to connect to default I/Os used in example code
    
    
    • open the jumper to connect to custom I/Os via jumper wires
    
    
    
    


32. Arduino jumper
    
    
    
    • short the upper pins, A4, A5 is used as AD function
    
    
    • short the lower pins, A4, A5 is used as I2C function
    
    
    
    

What's on the CoreH743I

1. STM32H743IIT6:the high performance STM32 MCU which features:
   
   
   
   • Core: Cortex-M7 32-bit RISC + double-precision FPU + Chrom-ART graphic accelerator
   
   
   • Feature: single-cycle DSP instructions
   
   
   • Operating Frequency: 480MHz, 1027 DMIPS / 2.14 DMIPS/MHz
   
   
   • Operating Voltage: 1.62V-3.6V
   
   
   • Package: LQFP176
   
   
   • Memories: 2MB Flash, 1MB RAM (864KB User+192KB TCM+4KB Backup)
   
   
   • MCU communication Interfaces:
     
     
     
     • 6 x SPI, 4 x USART, 4 x UART, 1 x LPUART, 3 x I2S
     
     
     • 4 x I2C, 2 x FDCAN, 1 x QUAD-SPI, 1 x DCMI, 4 x SAI
     
     
     • 1 x FMC, 2 x SDMMC, 10 x TIM , 5 x LPTIM
     
     
     • 1 x LTDC, 1 x SPDIFRX, 1 x HDMI-CEC, 1 x SWPMI
     
     
     • 2 x COMP, 2 x OPAMP, 1 x HRTIM, 1 x RNG, 1 x DM2D, 1 x MDIO, 1 x SysTick
     
     
     • 1 x USB 2.0 OTG FS
     
     
     • 1 x USB 2.0 OTG HS (supports external HS PHY through ULPI)
     
     
     • 1 x 10/100 Ethernet MAC
     
     
     
     
   
   
   • AD & DA converters: 3 x AD (16-bit); 2 x DA (12-bit)
   
   
   • Debugging/Programming: supports JTAG/SWD interfaces, supports IAP
   
   
   
   


2. IC42S16400J / IS42S16400J: SDRAM 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT)


3. STMPS2151STR: onboard USB power management device


4. AMS1117-3.3: 3.3V voltage regulator


5. 8M crystal


6. 32.768K crystal, for internal RTC with calibration


7. Reset button


8. VBUS LED: USB port indicator


9. PWR LED: Power indicator


10. Power supply switch, powered from 5Vin or USB connection


11. Boot mode selection, for configuring BOOT0 pin


12. JTAG/SWD interface: for debugging/programming


13. USB connector, supports Device and/or Host


14. MCU pins expander, VCC, GND and all the I/O pins are accessible on expansion connectors for further expansion


15. POWER jumper
    
    
    
    • VBAT: short the jumper to use system power supply, open it to connect external power, such as battery
    
    
    • VREF: short the jumper to connect VREF+ to VCC, open it to connect VREF+ to other custom pin via jumper wire
    
    
    
    


16. OTG jumper
    
    
    
    • short the jumper when using USB OTG/HOST
    
    
    • open the jumper to disconnect from related I/O port
    
    
    
    

Note:
The Modules in the photos are for reference only.
The OpenH743I-C does NOT integrate any debugging function, a debugger is required.

JTAG/SWD interfaces

The figure 1, and 2 show the header pinouts of JTAG/SWD interface

Development Resources

• Schematic


• Demo code (examples in C, FreeRTOS, μC/OS-III)


• STM32 development software (KEIL, STM32CubeMX, etc.)


• STM32 datasheets


• STM32 development documentations

Wiki: www.waveshare.com/wiki/OpenH743I-C

Dimensions