151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/**
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******************************************************************************
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* @file User\Driver\drv_usart.c
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* @author 路淮
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* @version v0.1
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* @date 2026-05-21
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* @brief 串口驱动
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******************************************************************************
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*/
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/* Includes -------------------------------------------------------------------*/
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#include "drv_usart.h"
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/* variables ------------------------------------------------------------------*/
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uint8_t uart1_rx_buffer[UART1_RX_BUFFER_SIZE];// 4G模块接收缓冲区
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uint8_t uart1_tx_buffer[UART1_TX_BUFFER_SIZE];// 4G模块发送缓冲区
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uint8_t uart3_rx_buffer[UART3_RX_BUFFER_SIZE];// RS485模块接收缓冲区
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uint8_t uart3_tx_buffer[UART3_TX_BUFFER_SIZE];// RS485模块发送缓冲区
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static SemaphoreHandle_t air724_tx_mutex = NULL;// 4G模块发送互斥信号量
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/* code -----------------------------------------------------------------------*/
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/**
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* @brief fputc：printf映射函数
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* @note none
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* @param ch：字符
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* @param f：文件指针
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* @retval none
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*/
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int fputc(int ch, FILE *f)
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{
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HAL_UART_Transmit(&huart6, (uint8_t *)&ch, 1, HAL_MAX_DELAY);
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return ch;
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}
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/**
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* @brief Air724_Message_Send：4G数据发送
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* @note none
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* @param data：数据指针
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* @param len：数据长度
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* @retval none
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*/
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void Air724_Message_Send(uint8_t *data, uint16_t len)
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{
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if (air724_tx_mutex != NULL)
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{
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if (xSemaphoreTake(air724_tx_mutex, portMAX_DELAY) == pdTRUE)
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{
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HAL_UART_Transmit(&huart1, data, len, HAL_MAX_DELAY);
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xSemaphoreGive(air724_tx_mutex);
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}
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}
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else
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{
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HAL_UART_Transmit(&huart1, data, len, HAL_MAX_DELAY);
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}
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}
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/**
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* @brief Rs485_Message_Send：RS485数据发送
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* @note none
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* @param data：数据指针
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* @param len：数据长度
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* @retval none
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*/
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void Rs485_Message_Send(uint8_t *data, uint16_t len)
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{
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RS485_EN(1);
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HAL_UART_Transmit(&huart3, data, len, HAL_MAX_DELAY);
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RS485_EN(0);
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}
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/**
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* @brief drv_usart_init：所有串口初始化
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* @note none
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* @param none
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* @retval none
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*/
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void drv_usart_init(void)
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{
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air724_tx_mutex = xSemaphoreCreateMutex();
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/* 初始化串口1 */
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Air724_Message_Queue_Init(); // 初始化4G数据接收队列
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__HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);
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HAL_UART_Receive_DMA(&huart1, uart1_rx_buffer, UART1_RX_BUFFER_SIZE);
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/* 初始化串口3 */
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RS485_Message_Queue_Init(); // 初始化RS485数据接收队列
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__HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
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HAL_UART_Receive_DMA(&huart3, uart3_rx_buffer, UART3_RX_BUFFER_SIZE);
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RS485_EN(0);
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}
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/**
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* @brief HAL_UARTEx_RxEventCallback：串口接收完成中断处理函数
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* @note none
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* @param huart：串口句柄
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* @param Size：接收数据大小
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* @retval none
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*/
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void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
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{
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if (huart->Instance == USART1)
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{
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SCB_InvalidateDCache_by_Addr((uint32_t *)uart1_rx_buffer, UART1_RX_BUFFER_SIZE);
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air724_callback_fun();
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HAL_UARTEx_ReceiveToIdle_DMA(&huart1, (uint8_t *)uart1_rx_buffer, UART1_RX_BUFFER_SIZE);
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}
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else if (huart->Instance == USART3)
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{
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SCB_InvalidateDCache_by_Addr((uint32_t *)uart3_rx_buffer, UART3_RX_BUFFER_SIZE);
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rs485_callback_fun();
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HAL_UARTEx_ReceiveToIdle_DMA(&huart3, (uint8_t *)uart3_rx_buffer, UART3_RX_BUFFER_SIZE);
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}
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}
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/**
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* @brief air724_callback_fun：4G数据接收回调函数
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* @note none
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* @param huart：串口句柄
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* @param Size：接收数据大小
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* @retval none
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*/
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void air724_callback_fun()
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{
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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xQueueSendFromISR(Air724_Message_Queue, uart1_rx_buffer, &xHigherPriorityTaskWoken);
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portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
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memset(uart1_rx_buffer, 0, UART1_RX_BUFFER_SIZE);
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}
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/**
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* @brief rs485_callback_fun：RS485数据接收回调函数
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* @note none
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* @param huart：串口句柄
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* @param Size：接收数据大小
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* @retval none
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*/
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void rs485_callback_fun()
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{
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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xQueueSendFromISR(RS485_Message_Queue, uart3_rx_buffer, &xHigherPriorityTaskWoken);
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portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
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memset(uart3_rx_buffer, 0, UART3_RX_BUFFER_SIZE);
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}
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