stm32/WEACTV20_F411: Add WeAct F411 v2.0 'blackpill' board.

Signed-off-by: Andrew Leech <[email protected]>

ports/stm32/boards/WEACTV20_F411/bdev.c

@@ -0,0 +1,29 @@
+#include "storage.h"
+#include "spi.h"
+
+// External SPI flash uses standard SPI interface
+
+static const mp_soft_spi_obj_t soft_spi_bus = {
+    .delay_half = MICROPY_HW_SOFTSPI_MIN_DELAY,
+    .polarity = 0,
+    .phase = 0,
+    .sck = MICROPY_HW_SPIFLASH_SCK,
+    .mosi = MICROPY_HW_SPIFLASH_MOSI,
+    .miso = MICROPY_HW_SPIFLASH_MISO,
+};
+
+#if MICROPY_HW_SPIFLASH_ENABLE_CACHE
+static mp_spiflash_cache_t spi_bdev_cache;
+#endif
+
+const mp_spiflash_config_t spiflash_config = {
+    .bus_kind = MP_SPIFLASH_BUS_SPI,
+    .bus.u_spi.cs = MICROPY_HW_SPIFLASH_CS,
+    .bus.u_spi.data = (void *)&soft_spi_bus,
+    .bus.u_spi.proto = &mp_soft_spi_proto,
+    #if MICROPY_HW_SPIFLASH_ENABLE_CACHE
+    .cache = &spi_bdev_cache,
+    #endif
+};
+
+spi_bdev_t spi_bdev;

ports/stm32/boards/WEACTV20_F411/mpconfigboard.h

@@ -0,0 +1,115 @@
+// based off the following two repositories:
+// * https://github.com/mcauser/WEACT_F411CEU6
+// * https://github.com/YXZhu/micropython
+
+#define MICROPY_HW_BOARD_NAME       "WEACTV20_F411"
+#define MICROPY_HW_MCU_NAME         "STM32F411CE"
+#define MICROPY_HW_FLASH_FS_LABEL   "WEACTV20_F411"
+
+// Set to 1 to use internal flash, set to 0 to use external SPI flash
+// You also need to set the size of the flash later in this header
+#define MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE (1)
+
+// some users having issues with FLASH_LATENCY_2, so set to 3
+// from https://forum.micropython.org/viewtopic.php?t=7154
+#define MICROPY_HW_FLASH_LATENCY    FLASH_LATENCY_3
+
+#define MICROPY_PY_THREAD           (1)
+
+#define MICROPY_HW_HAS_SWITCH       (1)
+#define MICROPY_HW_HAS_FLASH        (1)
+#define MICROPY_HW_ENABLE_RTC       (1)
+#define MICROPY_HW_ENABLE_USB       (1)
+#define MICROPY_HW_ENABLE_SERVO     (0)
+#define MICROPY_HW_ENABLE_SDCARD    (0)
+#define MICROPY_HW_ENABLE_RNG       (0)
+
+// HSE is 25MHz, CPU freq set to 96MHz
+#define MICROPY_HW_CLK_PLLM (25)
+#define MICROPY_HW_CLK_PLLN (192)
+#define MICROPY_HW_CLK_PLLP (RCC_PLLP_DIV2)
+#define MICROPY_HW_CLK_PLLQ (4)
+
+// UART config
+#define MICROPY_HW_UART1_TX     (pin_A9)
+#define MICROPY_HW_UART1_RX     (pin_A10)
+
+#define MICROPY_HW_UART2_TX     (pin_A2)
+#define MICROPY_HW_UART2_RX     (pin_A3)
+
+#define MICROPY_HW_UART_REPL        PYB_UART_1
+#define MICROPY_HW_UART_REPL_BAUD   115200
+
+// I2C bus
+#define MICROPY_HW_I2C1_SCL (pin_B6)
+#define MICROPY_HW_I2C1_SDA (pin_B7)
+#define MICROPY_HW_I2C2_SCL (pin_B10)
+#define MICROPY_HW_I2C2_SDA (pin_B9)
+#define MICROPY_HW_I2C3_SCL (pin_A8)
+#define MICROPY_HW_I2C3_SDA (pin_B8)
+
+// SPI bus
+// SPI 1 is used for the SPI flash module if present
+#define MICROPY_HW_SPI1_NSS     (pin_A4)
+#define MICROPY_HW_SPI1_SCK     (pin_A5)
+#define MICROPY_HW_SPI1_MISO    (pin_A6)
+#define MICROPY_HW_SPI1_MOSI    (pin_A7)
+
+#define MICROPY_HW_SPI2_NSS     (pin_B12)
+#define MICROPY_HW_SPI2_SCK     (pin_B13)
+#define MICROPY_HW_SPI2_MISO    (pin_B14)
+#define MICROPY_HW_SPI2_MOSI    (pin_B15)
+
+// SPI 3 is not accessible if SPI flash module is used on V2.0 (PB4 conflict)
+#define MICROPY_HW_SPI3_NSS     (pin_A15)
+#define MICROPY_HW_SPI3_SCK     (pin_B3)
+#define MICROPY_HW_SPI3_MISO    (pin_B4)
+#define MICROPY_HW_SPI3_MOSI    (pin_B5)
+
+// Switch
+#define MICROPY_HW_USRSW_PIN        (pin_A0)
+#define MICROPY_HW_USRSW_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
+#define MICROPY_HW_USRSW_PRESSED    (0)
+
+// LEDs
+#define MICROPY_HW_LED1             (pin_C13)
+#define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_low(pin))
+#define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_high(pin))
+
+#define MICROPY_HW_RTC_USE_LSE      (1)
+#define MICROPY_HW_RTC_USE_US       (0)
+#define MICROPY_HW_RTC_USE_CALOUT   (1)
+
+// SPI flash pins
+#define MICROPY_HW_SPIFLASH_CS          (pyb_pin_FLASH_CS)
+#define MICROPY_HW_SPIFLASH_SCK         (pyb_pin_FLASH_SCK)
+#define MICROPY_HW_SPIFLASH_MISO        (pyb_pin_FLASH_MISO)
+#define MICROPY_HW_SPIFLASH_MOSI        (pyb_pin_FLASH_MOSI)
+
+// Set flash size to 128MBit by default
+// note that this is in megabits, not megabytes
+// to convert megabytes to megabits, multiply by 8
+// 4MB => 32MBit
+// 8MB => 64MBit
+// 16MB => 128MBit
+#define MICROPY_HW_SPIFLASH_SIZE_BITS (128 * 1024 * 1024)
+
+#if !MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE
+
+extern const struct _mp_spiflash_config_t spiflash_config;
+extern struct _spi_bdev_t spi_bdev;
+#define MICROPY_HW_SPIFLASH_ENABLE_CACHE (1)
+#define MICROPY_HW_BDEV_IOCTL(op, arg) ( \
+    (op) == BDEV_IOCTL_NUM_BLOCKS ? (MICROPY_HW_SPIFLASH_SIZE_BITS / 8 / FLASH_BLOCK_SIZE) : \
+    (op) == BDEV_IOCTL_INIT ? spi_bdev_ioctl(&spi_bdev, (op), (uint32_t)&spiflash_config) : \
+    spi_bdev_ioctl(&spi_bdev, (op), (arg)) \
+    )
+#define MICROPY_HW_BDEV_READBLOCKS(dest, bl, n) spi_bdev_readblocks(&spi_bdev, (dest), (bl), (n))
+#define MICROPY_HW_BDEV_WRITEBLOCKS(src, bl, n) spi_bdev_writeblocks(&spi_bdev, (src), (bl), (n))
+#define MICROPY_HW_BDEV_SPIFLASH_EXTENDED (&spi_bdev) // for extended block protocol
+
+#endif
+
+// USB config
+#define MICROPY_HW_USB_FS (1)

ports/stm32/boards/WEACTV20_F411/mpconfigboard.mk

@@ -0,0 +1,6 @@
+MCU_SERIES = f4
+CMSIS_MCU = STM32F411xE
+AF_FILE = boards/stm32f411_af.csv
+LD_FILES = boards/stm32f411.ld boards/common_ifs.ld
+TEXT0_ADDR = 0x08000000
+TEXT1_ADDR = 0x08020000

ports/stm32/boards/WEACTV20_F411/pins.csv

@@ -0,0 +1,43 @@
+PA0,PA0
+PA1,PA1
+PA2,PA2
+PA3,PA3
+PA4,PA4
+PA5,PA5
+PA6,PA6
+PA7,PA7
+PA8,PA8
+PA9,PA9
+PA10,PA10
+PA11,PA11
+PA12,PA12
+PA15,PA15
+PB0,PB0
+PB1,PB1
+PB2,PB2
+PB3,PB3
+PB4,PB4
+PB5,PB5
+PB6,PB6
+PB7,PB7
+PB8,PB8
+PB9,PB9
+PB10,PB10
+PB12,PB12
+PB13,PB13
+PB14,PB14
+PB15,PB15
+PC14,PC14
+PC15,PC15
+LED_BLUE,PC13
+SW,PA0
+SWDIO,PA13
+SWCLK,PA14
+OSC32_IN,PH0
+OSC32_OUT,PH1
+USB_DM,PA11
+USB_DP,PA12
+FLASH_CS,PA4
+FLASH_SCK,PA5
+FLASH_MOSI,PA7
+FLASH_MISO,PB4

ports/stm32/boards/WEACTV20_F411/stm32f4xx_hal_conf.h

@@ -0,0 +1,19 @@
+/* This file is part of the MicroPython project, http://micropython.org/
+ * The MIT License (MIT)
+ * Copyright (c) 2024 Andrew Leech
+ */
+#ifndef MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H
+#define MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H
+
+#include "boards/stm32f4xx_hal_conf_base.h"
+
+// Oscillator values in Hz
+#define HSE_VALUE (25000000)
+#define LSE_VALUE (32768)
+#define EXTERNAL_CLOCK_VALUE (12288000)
+
+// Oscillator timeouts in ms
+#define HSE_STARTUP_TIMEOUT (100)
+#define LSE_STARTUP_TIMEOUT (5000)
+
+#endif // MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H