circuitpython/ports/stm32/boards/NUCLEO_H743ZI/mpconfigboard.h

#define MICROPY_HW_BOARD_NAME       "NUCLEO_H743ZI"
#define MICROPY_HW_MCU_NAME         "STM32H743"

#define MICROPY_HW_ENABLE_RTC       (1)
#define MICROPY_HW_ENABLE_RNG       (1)
#define MICROPY_HW_ENABLE_ADC       (1)
#define MICROPY_HW_ENABLE_DAC       (1)
#define MICROPY_HW_ENABLE_USB       (1)
#define MICROPY_HW_HAS_SWITCH       (1)
#define MICROPY_HW_HAS_FLASH        (1)
#define MICROPY_HW_HAS_SDCARD       (1)

#define MICROPY_BOARD_EARLY_INIT    NUCLEO_H743ZI_board_early_init
void NUCLEO_H743ZI_board_early_init(void);

// The board has an 8MHz HSE, the following gives 400MHz CPU speed
#define MICROPY_HW_CLK_PLLM (4)
#define MICROPY_HW_CLK_PLLN (400)
#define MICROPY_HW_CLK_PLLP (2)
#define MICROPY_HW_CLK_PLLQ (4)
#define MICROPY_HW_CLK_PLLR (2)

// 4 wait states
#define MICROPY_HW_FLASH_LATENCY    FLASH_LATENCY_4

// UART config
#define MICROPY_HW_UART3_TX         (pin_D8)
#define MICROPY_HW_UART3_RX         (pin_D9)
#define MICROPY_HW_UART_REPL        PYB_UART_3
#define MICROPY_HW_UART_REPL_BAUD   115200

// I2C busses
#define MICROPY_HW_I2C1_SCL         (pin_B8)
#define MICROPY_HW_I2C1_SDA         (pin_B9)
#define MICROPY_HW_I2C2_SCL         (pin_F1)
#define MICROPY_HW_I2C2_SDA         (pin_F0)

// SPI
//#define MICROPY_HW_SPI2_NSS         (pin_I0)
//#define MICROPY_HW_SPI2_SCK         (pin_I1)
//#define MICROPY_HW_SPI2_MISO        (pin_B14)
//#define MICROPY_HW_SPI2_MOSI        (pin_B15)

// USRSW is pulled low. Pressing the button makes the input go high.
#define MICROPY_HW_USRSW_PIN        (pin_C13)
#define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_RISING)
#define MICROPY_HW_USRSW_PRESSED    (1)

// LEDs
#define MICROPY_HW_LED1             (pin_B0)    // green
#define MICROPY_HW_LED2             (pin_B7)    // blue
#define MICROPY_HW_LED3             (pin_B14)   // red
#define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_high(pin))
#define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_low(pin))

// USB config
#define MICROPY_HW_USB_FS              (1)
#define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_A9)
#define MICROPY_HW_USB_OTG_ID_PIN      (pin_A10)

// SD card detect switch
#define MICROPY_HW_SDCARD_DETECT_PIN        (pin_G2)
#define MICROPY_HW_SDCARD_DETECT_PULL       (GPIO_PULLUP)
#define MICROPY_HW_SDCARD_DETECT_PRESENT    (GPIO_PIN_RESET)