实现串口驱动，移植方便

Modules/uart/CMakeLists.txt

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.22)
+
+# Create uart library
+add_library(uart STATIC)
+
+# Add uart sources
+target_sources(uart PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/uart.c
+)
+
+# Add uart include directories
+target_include_directories(uart PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/inc
+)
+
+# Link with stm32cubemx and hal libraries
+target_link_libraries(uart PRIVATE
+    stm32cubemx
+    hal
+)

Modules/uart/README.md

@@ -0,0 +1,131 @@
+# UART模块
+
+## 功能描述
+UART模块用于实现串口通信功能，支持数据发送和接收，提供了简单易用的API接口。
+
+## 依赖关系
+- HAL层：hal_uart
+
+## 接口说明
+
+### 数据结构
+
+#### uart_config_t
+UART配置结构体，用于初始化UART模块
+```c
+typedef struct {
+    uint32_t baudrate;               /*!< 波特率 */
+    hal_uart_parity_t parity;        /*!< 校验位 */
+    hal_uart_stopbits_t stopbits;    /*!< 停止位 */
+    hal_uart_databits_t databits;    /*!< 数据位 */
+} uart_config_t;
+```
+
+#### uart_t
+UART实例结构体，用于管理UART状态
+```c
+typedef struct {
+    uart_config_t config;    /*!< UART配置 */
+    uint8_t initialized;     /*!< 初始化状态 */
+} uart_t;
+```
+
+### 函数接口
+
+#### uart_init
+```c
+void uart_init(void);
+```
+初始化UART模块
+
+**参数**：无
+
+**返回值**：无
+
+#### uart_config
+```c
+void uart_config(const uart_config_t *config);
+```
+配置UART参数
+
+**参数**：
+- config: UART配置结构体指针
+
+**返回值**：无
+
+#### uart_send
+```c
+void uart_send(const uint8_t *data, size_t length);
+```
+发送数据
+
+**参数**：
+- data: 数据缓冲区指针
+- length: 数据长度
+
+**返回值**：无
+
+#### uart_send_string
+```c
+void uart_send_string(const char *str);
+```
+发送字符串
+
+**参数**：
+- str: 字符串指针
+
+**返回值**：无
+
+#### uart_receive
+```c
+size_t uart_receive(uint8_t *data, size_t length);
+```
+接收数据
+
+**参数**：
+- data: 数据缓冲区指针
+- length: 要接收的数据长度
+
+**返回值**：实际接收的数据长度
+
+#### uart_is_tx_ready
+```c
+uint8_t uart_is_tx_ready(void);
+```
+检查UART是否准备好发送
+
+**参数**：无
+
+**返回值**：
+- 1: 准备好
+- 0: 未准备好
+
+#### uart_is_rx_ready
+```c
+uint8_t uart_is_rx_ready(void);
+```
+检查UART是否有数据可读
+
+**参数**：无
+
+**返回值**：
+- 1: 有数据可读
+- 0: 无数据可读
+
+## 使用示例
+
+```c
+/* 初始化UART模块 */
+uart_init();
+
+/* 发送字符串 */
+uart_send_string("Hello, UART!\r\n");
+
+/* 发送数据 */
+uint8_t data[] = {0x01, 0x02, 0x03};
+uart_send(data, sizeof(data));
+
+/* 接收数据 */
+uint8_t buffer[10];
+size_t len = uart_receive(buffer, sizeof(buffer));
+```

Modules/uart/inc/uart.h

@@ -0,0 +1,79 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : uart.h
+  * @brief          : UART driver module header file
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#ifndef UART_H
+#define UART_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "hal_uart.h"
+
+/**
+ * @brief UART configuration structure
+ */
+typedef struct {
+    uint32_t baudrate;
+    hal_uart_parity_t parity;
+    hal_uart_stopbits_t stopbits;
+    hal_uart_databits_t databits;
+} uart_config_t;
+
+/**
+ * @brief UART instance structure
+ */
+typedef struct {
+    uart_config_t config;
+    uint8_t initialized;
+} uart_t;
+
+/**
+ * @brief Initialize UART module
+ */
+void uart_init(void);
+
+/**
+ * @brief Configure UART parameters
+ * @param config: UART configuration structure
+ */
+void uart_config(const uart_config_t *config);
+
+/**
+ * @brief Send data over UART
+ * @param data: Pointer to data buffer
+ * @param length: Data length in bytes
+ */
+void uart_send(const uint8_t *data, size_t length);
+
+/**
+ * @brief Send string over UART
+ * @param str: Pointer to string
+ */
+void uart_send_string(const char *str);
+
+/**
+ * @brief Receive data over UART
+ * @param data: Pointer to data buffer
+ * @param length: Data length to receive in bytes
+ * @retval Number of bytes received
+ */
+size_t uart_receive(uint8_t *data, size_t length);
+
+/**
+ * @brief Check if UART is ready to send
+ * @retval 1 if ready, 0 otherwise
+ */
+uint8_t uart_is_tx_ready(void);
+
+/**
+ * @brief Check if UART has data to receive
+ * @retval 1 if data available, 0 otherwise
+ */
+uint8_t uart_is_rx_ready(void);
+
+#endif /* UART_H */

Modules/uart/src/uart.c

@@ -0,0 +1,104 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : uart.c
+  * @brief          : UART driver module source file
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#include "uart.h"
+#include <string.h>
+
+/* UART instance */
+static uart_t uart;
+
+/**
+ * @brief Initialize UART module
+ */
+void uart_init(void) {
+    /* Initialize hardware abstraction layer */
+    hal_uart_init();
+    
+    /* Set default configuration */
+    uart.config.baudrate = 115200;
+    uart.config.parity = HAL_UART_PARITY_NONE;
+    uart.config.stopbits = HAL_UART_STOPBITS_1;
+    uart.config.databits = HAL_UART_DATABITS_8;
+    
+    /* Configure UART with default settings */
+    hal_uart_config((hal_uart_config_t *)&uart.config);
+    
+    uart.initialized = 1;
+}
+
+/**
+ * @brief Configure UART parameters
+ * @param config: UART configuration structure
+ */
+void uart_config(const uart_config_t *config) {
+    if (config == NULL) {
+        return;
+    }
+    
+    /* Update configuration */
+    uart.config = *config;
+    
+    /* Configure hardware */
+    hal_uart_config((hal_uart_config_t *)&uart.config);
+}
+
+/**
+ * @brief Send data over UART
+ * @param data: Pointer to data buffer
+ * @param length: Data length in bytes
+ */
+void uart_send(const uint8_t *data, size_t length) {
+    if (data == NULL || length == 0) {
+        return;
+    }
+    
+    hal_uart_send(data, length);
+}
+
+/**
+ * @brief Send string over UART
+ * @param str: Pointer to string
+ */
+void uart_send_string(const char *str) {
+    if (str == NULL) {
+        return;
+    }
+    
+    hal_uart_send((const uint8_t *)str, strlen(str));
+}
+
+/**
+ * @brief Receive data over UART
+ * @param data: Pointer to data buffer
+ * @param length: Data length to receive in bytes
+ * @retval Number of bytes received
+ */
+size_t uart_receive(uint8_t *data, size_t length) {
+    if (data == NULL || length == 0) {
+        return 0;
+    }
+    
+    return hal_uart_receive(data, length);
+}
+
+/**
+ * @brief Check if UART is ready to send
+ * @retval 1 if ready, 0 otherwise
+ */
+uint8_t uart_is_tx_ready(void) {
+    return hal_uart_is_tx_ready();
+}
+
+/**
+ * @brief Check if UART has data to receive
+ * @retval 1 if data available, 0 otherwise
+ */
+uint8_t uart_is_rx_ready(void) {
+    return hal_uart_is_rx_ready();
+}