huart->TxXferCount = Size; huart->ErrorCode = HAL_UART_ERROR_NONE; huart->gState = HAL_UART_STATE_BUSY_TX;/* Process Unlocked */__HAL_UNLOCK(huart);/* Enable the UART Transmit data register empty Interrupt */__HAL_UART_ENABLE_IT(huart, UART_IT_TXE);returnHAL_OK; }else{return...
huart->ErrorCode = HAL_UART_ERROR_NONE;huart->gState = HAL_UART_STATE_BUSY_TX;/* Init ...
HAL_UART_Transmit(&huart1, (uint8_t *)&RxBuffer, Uart1_Rx_Cnt,0xFFFF); //将收到的信息发送出去 while(HAL_UART_GetState(&huart1) == HAL_UART_STATE_BUSY_TX);//检测UART发送结束 Uart1_Rx_Cnt = 0; memset(RxBuffer,0x00,sizeof(RxBuffer)); //清空数组 } } HAL_UART_Receive_IT(...
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) // 串口DMA模式接收 HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart) // 查询串口状态 void HAL_UART_IRQHandler(UART_HandleTypeDef *huart) // 串口中断处理函数 void HAL_UART_T...
29.4 源文件stm32h7xx_hal_uart.c 29.5 总结 29.1 初学者重要提示 学习串口外设推荐从硬件框图开始了解基本的功能特性,然后逐步深入了解各种特性,这种方式方便记忆和以后查阅。而串口的通信学习,推荐看时序图。 STM32H7的串口比STM32F4和F1的串口支持了更多高级特性。比如超时接收检测、自适应波特率、TX和RX引脚互换...
HAL_UART_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission and Reception process is ongoi...
后续huart->gState的值都是HAL_UART_STATE_BUSY_TX，导致后续调用HAL_UART_Transmit_DMA()实际没有...
UART7PE7PE8 UART8PE0PE1 RT: Receive Data 接收数据 TX: Transmit Data 发送数据 CK: Clock （同步）时钟 硬件流控制 RTS: Request To Send 请求发送数据 CTS: Clear To Send 允许发送数据 相关结构体变量 USRT_InitTypeDef 该结构体定义了⽤于初始化UART的⼀些相关参数 typedef struct ...
29.4 源文件stm32h7xx_hal_uart.c 29.5 总结 29.1 初学者重要提示 学习串口外设推荐从硬件框图开始了解基本的功能特性,然后逐步深入了解各种特性,这种方式方便记忆和以后查阅。而串口的通信学习,推荐看时序图。 STM32H7的串口比STM32F4和F1的串口支持了更多高级特性。比如超时接收检测、自适应波特率、TX和RX引脚互换...
(huart); huart->pTxBuffPtr = pData; huart->TxXferSize = Size; huart->TxXferCount = Size; huart->ErrorCode = HAL_UART_ERROR_NONE; huart->gState = HAL_UART_STATE_BUSY_TX; __HAL_UNLOCK(huart); if (READ_BIT(huart->Instance->CR1, USART_CR1_FIFOEN) != RESET) { /* 使能...