实现串口驱动，移植方便

BSP/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.22)
+
+# Add BSP library
+add_library(bsp STATIC)
+
+# Add BSP sources
+target_sources(bsp PRIVATE
+    Src/bsp_init.c
+)
+
+# Add BSP include directories
+target_include_directories(bsp PUBLIC
+    Inc
+)
+
+# Link BSP dependencies
+target_link_libraries(bsp PRIVATE
+    stm32cubemx
+    hal
+)

BSP/Inc/bsp_config.h

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+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : bsp_config.h
+  * @brief          : Board support package configuration file
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#ifndef BSP_CONFIG_H
+#define BSP_CONFIG_H
+
+#include "hal_gpio.h"
+
+/**
+ * @brief Board name definition
+ */
+#define BOARD_NAME "STM32F407VET6"
+
+/**
+ * @brief LED hardware configuration
+ */
+#define BSP_LED_PORT    HAL_GPIO_PORT_A
+#define BSP_LED_PIN     HAL_GPIO_PIN_6
+
+/**
+ * @brief Button hardware configuration (if available)
+ */
+/* #define BSP_BUTTON_PORT HAL_GPIO_PORT_X */
+/* #define BSP_BUTTON_PIN  HAL_GPIO_PIN_X */
+
+/**
+ * @brief UART hardware configuration
+ */
+#define BSP_UART_INSTANCE USART1
+#define BSP_UART_BAUDRATE 115200
+#define BSP_UART_PARITY HAL_UART_PARITY_NONE
+#define BSP_UART_STOPBITS HAL_UART_STOPBITS_1
+#define BSP_UART_DATABITS HAL_UART_DATABITS_8
+
+#endif /* BSP_CONFIG_H */

BSP/Inc/bsp_init.h

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+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : bsp_init.h
+  * @brief          : Board support package initialization header file
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#ifndef BSP_INIT_H
+#define BSP_INIT_H
+
+/**
+ * @brief Initialize board support package
+ */
+void bsp_init(void);
+
+/**
+ * @brief Initialize board GPIO
+ */
+void bsp_gpio_init(void);
+
+/**
+ * @brief Get board name
+ * @retval Board name string
+ */
+const char* bsp_get_board_name(void);
+
+#endif /* BSP_INIT_H */

BSP/Src/bsp_init.c

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+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : bsp_init.c
+  * @brief          : Board support package initialization source file
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#include "bsp_init.h"
+#include "bsp_config.h"
+#include "stm32f4xx_hal.h"
+
+/**
+ * @brief Initialize board support package
+ */
+void bsp_init(void) {
+    /* Initialize board GPIO */
+    bsp_gpio_init();
+}
+
+/**
+ * @brief Initialize board GPIO
+ */
+void bsp_gpio_init(void) {
+    GPIO_InitTypeDef GPIO_InitStruct = {0};
+    GPIO_TypeDef *gpio_port = NULL;
+    uint32_t gpio_pin = 0;
+    
+    /* Convert HAL GPIO port to STM32 GPIO port */
+    switch (BSP_LED_PORT) {
+        case HAL_GPIO_PORT_A: 
+            gpio_port = GPIOA;
+            __HAL_RCC_GPIOA_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_B: 
+            gpio_port = GPIOB;
+            __HAL_RCC_GPIOB_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_C: 
+            gpio_port = GPIOC;
+            __HAL_RCC_GPIOC_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_D: 
+            gpio_port = GPIOD;
+            __HAL_RCC_GPIOD_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_E: 
+            gpio_port = GPIOE;
+            __HAL_RCC_GPIOE_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_F: 
+            gpio_port = GPIOF;
+            __HAL_RCC_GPIOF_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_G: 
+            gpio_port = GPIOG;
+            __HAL_RCC_GPIOG_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_H: 
+            gpio_port = GPIOH;
+            __HAL_RCC_GPIOH_CLK_ENABLE();
+            break;
+        case HAL_GPIO_PORT_I: 
+            gpio_port = GPIOI;
+            __HAL_RCC_GPIOI_CLK_ENABLE();
+            break;
+        default: break;
+    }
+    
+    /* Convert HAL GPIO pin to STM32 GPIO pin */
+    gpio_pin = 1 << BSP_LED_PIN;
+    
+    if (gpio_port != NULL) {
+        /* Configure GPIO pin Output Level */
+        HAL_GPIO_WritePin(gpio_port, gpio_pin, GPIO_PIN_RESET);
+        
+        /* Configure GPIO pin */
+        GPIO_InitStruct.Pin = gpio_pin;
+        GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+        GPIO_InitStruct.Pull = GPIO_NOPULL;
+        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+        HAL_GPIO_Init(gpio_port, &GPIO_InitStruct);
+    }
+}
+
+/**
+ * @brief Get board name
+ * @retval Board name string
+ */
+const char* bsp_get_board_name(void) {
+    return BOARD_NAME;
+}