在最新的 MicroPython 源码中，已经加入了STM32L476DISC开发板，但是还没有NUCLEO-L476RG开发板。而我只有NUCLEO-L476RG开发板，要在NUCLEO-L476RG开发板上跑MicroPython，只有自己移植一下了。好在两个开发板使用的MCU是一样的，所以移植起来并不困难，主要就是修改一些参数配置，将LED、按键、串口等指定为开发板使用的GPIO。
CROSS_COMPILE = e:/gcc-arm/bin/arm-none-eabi-
#define MICROPY_HW_BOARD_NAME "NUCLEO-L476RG" #define MICROPY_HW_MCU_NAME "STM32L476" #define MICROPY_HW_HAS_SWITCH (1) #define MICROPY_HW_HAS_FLASH (1) #define MICROPY_HW_HAS_SDCARD (0) #define MICROPY_HW_HAS_MMA7660 (0) #define MICROPY_HW_HAS_LIS3DSH (0) #define MICROPY_HW_HAS_LCD (0) #define MICROPY_HW_ENABLE_RNG (1) #define MICROPY_HW_ENABLE_RTC (1) #define MICROPY_HW_ENABLE_TIMER (1) #define MICROPY_HW_ENABLE_SERVO (0) #define MICROPY_HW_ENABLE_DAC (0) #define MICROPY_HW_ENABLE_CAN (0) // HSI is 4MHz #define MICROPY_HW_CLK_PLLM (1) #define MICROPY_HW_CLK_PLLN (40) #define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV7) #define MICROPY_HW_CLK_PLLR (RCC_PLLR_DIV2) #define MICROPY_HW_CLK_PLLQ (RCC_PLLQ_DIV2) #define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4 // USART config #define MICROPY_HW_UART2_PORT (GPIOA) #define MICROPY_HW_UART2_PINS (GPIO_PIN_2 | GPIO_PIN_3) // I2C busses #define MICROPY_HW_I2C1_SCL (pin_B8) #define MICROPY_HW_I2C1_SDA (pin_B9) // We use an array of baudrates and corresponding TIMINGR values. // // The value 0x90112626 was obtained from the DISCOVERY_I2C1_TIMING constant // defined in the STM32L4Cube file Drivers/BSP/STM32L476G-Discovery/stm32l476g_discovery.h #define MICROPY_HW_I2C_BAUDRATE_TIMING {{100000, 0x90112626}} #define MICROPY_HW_I2C_BAUDRATE_DEFAULT 100000 #define MICROPY_HW_I2C_BAUDRATE_MAX 100000 // SPI busses #define MICROPY_HW_SPI1_NSS (pin_A15) #define MICROPY_HW_SPI1_SCK (pin_A5) #define MICROPY_HW_SPI1_MISO (pin_A6) #define MICROPY_HW_SPI1_MOSI (pin_A7) // 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) // red #define MICROPY_HW_LED_OTYPE (GPIO_MODE_OUTPUT_PP) #define MICROPY_HW_LED_ON(pin) (pin->gpio->BSRR = pin->pin_mask #define MICROPY_HW_LED_OFF(pin) (pin->gpio->BSRR = pin->pin_mask<<16) // USB config // #define MICROPY_HW_USB_OTG_ID_PIN (pin_C12) // This is not the official ID Pin which should be PA10>
make BOARD=NUCLEO_L476RG
因为STM32L476的Micropython版本还在修改中，现在还存在一些问题，目前已知问题有：
其他