1 #define MICROPY_HW_BOARD_NAME       "NUCLEO-L476RG"
2 #define MICROPY_HW_MCU_NAME         "STM32L476RG"
3 
4 #define MICROPY_HW_HAS_SWITCH       (1)
5 #define MICROPY_HW_HAS_FLASH        (1)
6 #define MICROPY_HW_ENABLE_RNG       (1)
7 #define MICROPY_HW_ENABLE_RTC       (1)
8 #define MICROPY_HW_ENABLE_USB       (1)
9 #define MICROPY_HW_ENABLE_DAC       (1)
10 
11 // MSI is used and is 4MHz
12 #define MICROPY_HW_CLK_PLLM         (1)
13 #define MICROPY_HW_CLK_PLLN         (40)
14 #define MICROPY_HW_CLK_PLLP         (RCC_PLLP_DIV7)
15 #define MICROPY_HW_CLK_PLLQ         (RCC_PLLQ_DIV2)
16 #define MICROPY_HW_CLK_PLLR         (RCC_PLLR_DIV2)
17 
18 #define MICROPY_HW_FLASH_LATENCY    FLASH_LATENCY_4
19 
20 // The board has an external 32kHz crystal
21 #define MICROPY_HW_RTC_USE_LSE      (1)
22 
23 // USART1 config
24 #define MICROPY_HW_UART1_TX         (pin_A9)
25 #define MICROPY_HW_UART1_RX         (pin_A10)
26 // USART2 config. Connected to ST-Link
27 #define MICROPY_HW_UART2_TX         (pin_A2)
28 #define MICROPY_HW_UART2_RX         (pin_A3)
29 #define MICROPY_HW_UART2_RTS        (pin_A1)
30 #define MICROPY_HW_UART2_CTS        (pin_A0)
31 // USART3 config
32 #define MICROPY_HW_UART3_TX         (pin_C4)
33 #define MICROPY_HW_UART3_RX         (pin_C5)
34 #define MICROPY_HW_UART3_RTS        (pin_B14)
35 #define MICROPY_HW_UART3_CTS        (pin_B13)
36 // UART4 config
37 #define MICROPY_HW_UART4_TX         (pin_A0)
38 #define MICROPY_HW_UART4_RX         (pin_A1)
39 // UART5 config
40 #define MICROPY_HW_UART5_TX         (pin_C12)
41 #define MICROPY_HW_UART5_RX         (pin_D2)
42 // LPUART config
43 #define MICROPY_HW_LPUART1_TX       (pin_C1)
44 #define MICROPY_HW_LPUART1_RX       (pin_C0)
45 // USART2 is connected to the virtual com port on the ST-Link
46 #define MICROPY_HW_UART_REPL        PYB_UART_2
47 #define MICROPY_HW_UART_REPL_BAUD   115200
48 
49 // I2C buses
50 #define MICROPY_HW_I2C1_SCL         (pin_B8)
51 #define MICROPY_HW_I2C1_SDA         (pin_B9)
52 #define MICROPY_HW_I2C2_SCL         (pin_B10)
53 #define MICROPY_HW_I2C2_SDA         (pin_B11)
54 #define MICROPY_HW_I2C3_SCL         (pin_C0)
55 #define MICROPY_HW_I2C3_SDA         (pin_C1)
56 
57 // SPI buses
58 #define MICROPY_HW_SPI1_NSS         (pin_A4)
59 #define MICROPY_HW_SPI1_SCK         (pin_B3)
60 #define MICROPY_HW_SPI1_MISO        (pin_B4)
61 #define MICROPY_HW_SPI1_MOSI        (pin_B5)
62 #define MICROPY_HW_SPI2_NSS         (pin_B12)
63 #define MICROPY_HW_SPI2_SCK         (pin_B13)
64 #define MICROPY_HW_SPI2_MISO        (pin_B14)
65 #define MICROPY_HW_SPI2_MOSI        (pin_B15)
66 
67 // CAN buses
68 #define MICROPY_HW_CAN1_TX          (pin_A12)
69 #define MICROPY_HW_CAN1_RX          (pin_A11)
70 
71 // USRSW is pulled low. Pressing the button makes the input go high.
72 #define MICROPY_HW_USRSW_PIN        (pin_C13)
73 #define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
74 #define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
75 #define MICROPY_HW_USRSW_PRESSED    (0)
76 
77 // LEDs
78 #define MICROPY_HW_LED1             (pin_A5) // Green LED on Nucleo
79 #define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_high(pin))
80 #define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_low(pin))
81 
82 // USB config
83 #define MICROPY_HW_USB_FS           (1)
84