#define MICROPY_HW_BOARD_NAME "F401NUCLEO" #define MICROPY_HW_MCU_NAME "STM32F401xE" #define MICROPY_HW_HAS_SWITCH (1) #define MICROPY_HW_HAS_FLASH (1) #define MICROPY_HW_ENABLE_RTC (1) // HSE is 8MHz, CPU freq set to 84MHz #define MICROPY_HW_CLK_PLLM (8) #define MICROPY_HW_CLK_PLLN (336) #define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV4) #define MICROPY_HW_CLK_PLLQ (7) // UART config #define MICROPY_HW_UART2_PORT (GPIOA) #define MICROPY_HW_UART2_PINS (GPIO_PIN_2 | GPIO_PIN_3) #define MICROPY_HW_UART6_PORT (GPIOC) #define MICROPY_HW_UART6_PINS (GPIO_PIN_6 | GPIO_PIN_7) // UART 2 connects to the STM32F103 (STLINK) on the Nucleo board // and this is exposed as a USB Serial port. #define MICROPY_HW_UART_REPL PYB_UART_2 #define MICROPY_HW_UART_REPL_BAUD 115200 // I2C busses #define MICROPY_HW_I2C1_SCL (pin_B6) #define MICROPY_HW_I2C1_SDA (pin_B7) // 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_FALLING) #define MICROPY_HW_USRSW_PRESSED (0) // LEDs #define MICROPY_HW_LED1 (pin_A5) // Green LD2 LED on Nucleo #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) // USB config #define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_A9) #define MICROPY_HW_USB_OTG_ID_PIN (pin_A10)