circuitpython/stmhal/boards/PYBV4/mpconfigboard.h

#define MICROPY_HW_BOARD_NAME       "PYBv4"
#define MICROPY_HW_MCU_NAME         "STM32F405RG"
#define MICROPY_PY_SYS_PLATFORM     "pyboard"

#define MICROPY_HW_HAS_SWITCH       (1)
#define MICROPY_HW_HAS_FLASH        (1)
#define MICROPY_HW_HAS_SDCARD       (1)
#define MICROPY_HW_HAS_MMA7660      (1)
#define MICROPY_HW_HAS_LIS3DSH      (0)
#define MICROPY_HW_HAS_LCD          (1)
#define MICROPY_HW_ENABLE_RNG       (1)
#define MICROPY_HW_ENABLE_RTC       (1)
#define MICROPY_HW_ENABLE_TIMER     (1)
#define MICROPY_HW_ENABLE_SERVO     (1)
#define MICROPY_HW_ENABLE_DAC       (1)
#define MICROPY_HW_ENABLE_CAN       (1)

// HSE is 8MHz
#define MICROPY_HW_CLK_PLLM (8)
#define MICROPY_HW_CLK_PLLN (336)
#define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV2)
#define MICROPY_HW_CLK_PLLQ (7)

// The pyboard has a 32kHz crystal for the RTC
#define MICROPY_HW_RTC_USE_LSE      (1)

// UART config
#define MICROPY_HW_UART1_NAME "XB"
#define MICROPY_HW_UART1_PORT (GPIOB)
#define MICROPY_HW_UART1_PINS (GPIO_PIN_6 | GPIO_PIN_7)
#define MICROPY_HW_UART2_PORT (GPIOA)
#define MICROPY_HW_UART2_PINS (GPIO_PIN_2 | GPIO_PIN_3)
#define MICROPY_HW_UART2_RTS  (GPIO_PIN_1)
#define MICROPY_HW_UART2_CTS  (GPIO_PIN_0)
#define MICROPY_HW_UART3_NAME "YB"
#define MICROPY_HW_UART3_PORT (GPIOB)
#define MICROPY_HW_UART3_PINS (GPIO_PIN_10 | GPIO_PIN_11)
#define MICROPY_HW_UART3_RTS  (GPIO_PIN_14)
#define MICROPY_HW_UART3_CTS  (GPIO_PIN_13)
#define MICROPY_HW_UART4_NAME "XA"
#define MICROPY_HW_UART4_PORT (GPIOA)
#define MICROPY_HW_UART4_PINS (GPIO_PIN_0 | GPIO_PIN_1)
#define MICROPY_HW_UART6_NAME "YA"
#define MICROPY_HW_UART6_PORT (GPIOC)
#define MICROPY_HW_UART6_PINS (GPIO_PIN_6 | GPIO_PIN_7)

// I2C busses
#define MICROPY_HW_I2C1_NAME "X"
#define MICROPY_HW_I2C1_SCL (pin_B6)
#define MICROPY_HW_I2C1_SDA (pin_B7)
#define MICROPY_HW_I2C2_NAME "Y"
#define MICROPY_HW_I2C2_SCL (pin_B10)
#define MICROPY_HW_I2C2_SDA (pin_B11)

// SPI busses
#define MICROPY_HW_SPI1_NAME "X"
#define MICROPY_HW_SPI1_NSS  (pin_A4) // X5
#define MICROPY_HW_SPI1_SCK  (pin_A5) // X6
#define MICROPY_HW_SPI1_MISO (pin_A6) // X7
#define MICROPY_HW_SPI1_MOSI (pin_A7) // X8
#define MICROPY_HW_SPI2_NAME "Y"
#define MICROPY_HW_SPI2_NSS  (pin_B12) // Y5
#define MICROPY_HW_SPI2_SCK  (pin_B13) // Y6
#define MICROPY_HW_SPI2_MISO (pin_B14) // Y7
#define MICROPY_HW_SPI2_MOSI (pin_B15) // Y8

// CAN busses
#define MICROPY_HW_CAN1_NAME "YA" // CAN1 on RX,TX = Y3,Y4 = PB8,PB9
#define MICROPY_HW_CAN2_NAME "YB" // CAN2 on RX,TX = Y5,Y6 = PB12,PB13

// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
#define MICROPY_HW_USRSW_PIN        (pin_B3)
#define MICROPY_HW_USRSW_PULL       (GPIO_PULLUP)
#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
#define MICROPY_HW_USRSW_PRESSED    (0)

// The pyboard has 4 LEDs
#define MICROPY_HW_LED1             (pin_A13) // red
#define MICROPY_HW_LED2             (pin_A14) // green
#define MICROPY_HW_LED3             (pin_A15) // yellow
#define MICROPY_HW_LED4             (pin_B4)  // blue
#define MICROPY_HW_LED3_PWM         { TIM2, 2, TIM_CHANNEL_1, GPIO_AF1_TIM2 }
#define MICROPY_HW_LED4_PWM         { TIM3, 3, TIM_CHANNEL_1, GPIO_AF2_TIM3 }
#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRL = pin->pin_mask)
#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRH = pin->pin_mask)

// SD card detect switch
#define MICROPY_HW_SDCARD_DETECT_PIN        (pin_A8)
#define MICROPY_HW_SDCARD_DETECT_PULL       (GPIO_PULLUP)
#define MICROPY_HW_SDCARD_DETECT_PRESENT    (GPIO_PIN_RESET)

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

// MMA accelerometer config
#define MICROPY_HW_MMA_AVDD_PIN     (pin_B5)