优化整定，DHCP有问题待优化

drivers/hal/stm32f4_hal_uart.c

@@ -0,0 +1,140 @@
+/*
+ * STM32F4串口硬件抽象层实现
+ * 功能：实现STM32F4平台的串口硬件抽象层
+ * 依赖硬件：STM32F407VE
+ * 跨平台适配点：通过硬件抽象层接口适配不同平台
+ */
+
+#include "hal.h"
+#include "stm32f4xx_hal.h"
+
+/* 串口句柄 */
+static UART_HandleTypeDef huart1;
+
+/**
+ * @brief  串口初始化
+ * @param  baudrate: 波特率
+ * @return hal_status_t: 操作结果
+ * @note   初始化串口硬件
+ */
+static hal_status_t stm32f4_uart_init(hal_uart_baudrate_t baudrate)
+{
+    huart1.Instance = USART1;
+    huart1.Init.BaudRate = baudrate;
+    huart1.Init.WordLength = UART_WORDLENGTH_8B;
+    huart1.Init.StopBits = UART_STOPBITS_1;
+    huart1.Init.Parity = UART_PARITY_NONE;
+    huart1.Init.Mode = UART_MODE_TX_RX;
+    huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+    huart1.Init.OverSampling = UART_OVERSAMPLING_16;
+    
+    if (HAL_UART_Init(&huart1) != HAL_OK) {
+        return HAL_STATUS_ERROR;
+    }
+    
+    return HAL_STATUS_OK;
+}
+
+/**
+ * @brief  串口反初始化
+ * @return hal_status_t: 操作结果
+ * @note   反初始化串口硬件
+ */
+static hal_status_t stm32f4_uart_deinit(void)
+{
+    if (HAL_UART_DeInit(&huart1) != HAL_OK) {
+        return HAL_STATUS_ERROR;
+    }
+    
+    return HAL_STATUS_OK;
+}
+
+/**
+ * @brief  串口发送数据
+ * @param  data: 数据指针
+ * @param  len: 数据长度
+ * @return hal_status_t: 操作结果
+ * @note   发送数据，使用阻塞方式
+ */
+static hal_status_t stm32f4_uart_send(const uint8_t *data, uint32_t len)
+{
+    if (HAL_UART_Transmit(&huart1, (uint8_t *)data, len, 1000) != HAL_OK) {
+        return HAL_STATUS_ERROR;
+    }
+    
+    return HAL_STATUS_OK;
+}
+
+/**
+ * @brief  串口接收数据
+ * @param  data: 数据指针
+ * @param  len: 数据长度
+ * @param  timeout: 超时时间
+ * @return hal_status_t: 操作结果
+ * @note   接收数据，使用阻塞方式
+ */
+static hal_status_t stm32f4_uart_recv(uint8_t *data, uint32_t len, uint32_t timeout)
+{
+    if (HAL_UART_Receive(&huart1, data, len, timeout) != HAL_OK) {
+        return HAL_STATUS_ERROR;
+    }
+    
+    return HAL_STATUS_OK;
+}
+
+/* 串口硬件抽象层操作结构体 */
+const hal_uart_ops_t stm32f4_uart_ops = {
+    .init = stm32f4_uart_init,
+    .deinit = stm32f4_uart_deinit,
+    .send = stm32f4_uart_send,
+    .recv = stm32f4_uart_recv
+};
+
+/**
+ * @brief  UART MSP初始化
+ * @param  uartHandle: UART句柄
+ * @return 无
+ * @note   初始化UART的MSP
+ */
+void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
+{
+    GPIO_InitTypeDef GPIO_InitStruct = {0};
+    if(uartHandle->Instance==USART1)
+    {
+        /* USART1 clock enable */
+        __HAL_RCC_USART1_CLK_ENABLE();
+        __HAL_RCC_GPIOA_CLK_ENABLE();
+
+        /**USART1 GPIO Configuration
+        PA9     ------> USART1_TX
+        PA10     ------> USART1_RX
+        */
+        GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
+        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+        GPIO_InitStruct.Pull = GPIO_PULLUP;
+        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+        GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
+        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+    }
+}
+
+/**
+ * @brief  UART MSP反初始化
+ * @param  uartHandle: UART句柄
+ * @return 无
+ * @note   反初始化UART的MSP
+ */
+void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
+{
+    if(uartHandle->Instance==USART1)
+    {
+        /* Peripheral clock disable */
+        __HAL_RCC_USART1_CLK_DISABLE();
+
+        /**USART1 GPIO Configuration
+        PA9     ------> USART1_TX
+        PA10     ------> USART1_RX
+        */
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
+    }
+}