MicroPython
STM32H743XI board #9756
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Getting a H7 MCU working can be tricky, because of the complex clock tree and power supply. You need to double check those two things. In your config you have put a REPL on UART3, on PB10/PB11 (and there's no USB configured). So check that you are listening on those pins at 115200 baud. The best way to approach this problem is to start with a know working config with one of the supported boards, eg |
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Thank you very much, it worked!!!! Here is my configuration mpconfigboard.h #define MICROPY_HW_BOARD_NAME "STM32H743XI"
#define MICROPY_HW_MCU_NAME "STM32H743XI"
#define MICROPY_HW_ENABLE_RTC (1)
#define MICROPY_HW_ENABLE_RNG (1)
#define MICROPY_HW_ENABLE_ADC (0)
#define MICROPY_HW_ENABLE_DAC (0)
#define MICROPY_HW_ENABLE_USB (0)
#define MICROPY_HW_ENABLE_SDCARD (0)
#define MICROPY_HW_HAS_SWITCH (0)
#define MICROPY_HW_HAS_FLASH (1)
// The board has an 25MHz HSE, the following gives 480MHz CPU speed
#define MICROPY_HW_CLK_PLLM (5)
#define MICROPY_HW_CLK_PLLN (192)
#define MICROPY_HW_CLK_PLLP (2)
#define MICROPY_HW_CLK_PLLQ (2)
#define MICROPY_HW_CLK_PLLR (2)
#define MICROPY_HW_CLK_PLLVCI (RCC_PLL1VCIRANGE_1)
#define MICROPY_HW_CLK_PLLVCO (RCC_PLL1VCOWIDE)
#define MICROPY_HW_CLK_PLLFRAC (0)
// The board has an external 32kHz crystal attached
#define MICROPY_HW_RTC_USE_LSE (1)
// 4 wait states
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4
// UART config
#define MICROPY_HW_UART1_TX (pin_B14)
#define MICROPY_HW_UART1_RX (pin_B15)
#define MICROPY_HW_UART3_TX (pin_B10)
#define MICROPY_HW_UART3_RX (pin_B11)
#define MICROPY_HW_UART_REPL PYB_UART_1
#define MICROPY_HW_UART_REPL_BAUD 115200
// LEDs
#define MICROPY_HW_LED1 (pin_K6) // green
#define MICROPY_HW_LED2 (pin_G14) // blue
#define MICROPY_HW_LED3 (pin_K7) // red
#define MICROPY_HW_LED_ON(pin) (mp_hal_pin_high(pin))
#define MICROPY_HW_LED_OFF(pin) (mp_hal_pin_low(pin))pins.csv |
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@Oldhandsome hey how it's going? Are still using the board? |
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i am a beginner for the mcu board, and i have a mcu, it is stm32h743XI. But i failed to connect the mcu using thonny throw the serial port after downloading the compiled hex. Here is my configuration. Please help me point out problems, I really appreciate it !!!
mpconfigboard.h
stm32h7xx_hal_conf.h
pin.csv
the following content exported from CubeMx
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