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标题: 【STM32L476 Nucleo】移植MicroPython到NUCLEO_L476RG开发板 [打印本页]
作者: Oliver_CHENG    时间: 2016-5-11 04:07 PM
标题: 【STM32L476 Nucleo】移植MicroPython到NUCLEO_L476RG开发板
本帖最后由 shaoziyang 于 2016-5-15 00:32 编辑

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-


  1. #define MICROPY_HW_BOARD_NAME       "NUCLEO-L476RG"
  2. #define MICROPY_HW_MCU_NAME         "STM32L476"

  4. #define MICROPY_HW_HAS_SWITCH       (1)
  5. #define MICROPY_HW_HAS_FLASH        (1)
  6. #define MICROPY_HW_HAS_SDCARD       (0)
  7. #define MICROPY_HW_HAS_MMA7660      (0)
  8. #define MICROPY_HW_HAS_LIS3DSH      (0)
  9. #define MICROPY_HW_HAS_LCD          (0)
  10. #define MICROPY_HW_ENABLE_RNG       (1)
  11. #define MICROPY_HW_ENABLE_RTC       (1)
  12. #define MICROPY_HW_ENABLE_TIMER     (1)
  13. #define MICROPY_HW_ENABLE_SERVO     (0)
  14. #define MICROPY_HW_ENABLE_DAC       (0)
  15. #define MICROPY_HW_ENABLE_CAN       (0)

  17. // HSI is 4MHz
  18. #define MICROPY_HW_CLK_PLLM (1)
  19. #define MICROPY_HW_CLK_PLLN (40)
  20. #define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV7)
  21. #define MICROPY_HW_CLK_PLLR (RCC_PLLR_DIV2)
  22. #define MICROPY_HW_CLK_PLLQ (RCC_PLLQ_DIV2)

  24. #define MICROPY_HW_FLASH_LATENCY    FLASH_LATENCY_4

  26. // USART config
  27. #define MICROPY_HW_UART2_PORT (GPIOA)
  28. #define MICROPY_HW_UART2_PINS (GPIO_PIN_2 | GPIO_PIN_3)

  30. // I2C busses
  31. #define MICROPY_HW_I2C1_SCL (pin_B8)
  32. #define MICROPY_HW_I2C1_SDA (pin_B9)
  33. // We use an array of baudrates and corresponding TIMINGR values.
  34. //
  35. // The value 0x90112626 was obtained from the DISCOVERY_I2C1_TIMING constant
  36. // defined in the STM32L4Cube file Drivers/BSP/STM32L476G-Discovery/stm32l476g_discovery.h
  37. #define MICROPY_HW_I2C_BAUDRATE_TIMING  {{100000, 0x90112626}}
  38. #define MICROPY_HW_I2C_BAUDRATE_DEFAULT 100000
  39. #define MICROPY_HW_I2C_BAUDRATE_MAX     100000

  41. // SPI busses
  42. #define MICROPY_HW_SPI1_NSS     (pin_A15)
  43. #define MICROPY_HW_SPI1_SCK     (pin_A5)
  44. #define MICROPY_HW_SPI1_MISO    (pin_A6)
  45. #define MICROPY_HW_SPI1_MOSI    (pin_A7)

  47. // USRSW is pulled low. Pressing the button makes the input go high.
  48. #define MICROPY_HW_USRSW_PIN        (pin_C13)
  49. #define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
  50. #define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
  51. #define MICROPY_HW_USRSW_PRESSED    (0)

  53. // LEDs
  54. #define MICROPY_HW_LED1             (pin_A5) // red
  55. #define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)         
  56. #define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRR = pin->pin_mask
  57. #define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRR = pin->pin_mask<<16)

  59. // USB config
  60. // #define MICROPY_HW_USB_OTG_ID_PIN (pin_C12) // This is not the official ID Pin which should be PA10>
复制代码


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
build-NUCLEO_L476RG.zip (478.92 KB, 下载次数: 2, 售价: 5 IC币)