USART_IT_IDLE) != RESET) //空闲中断 { clear = USART1->SR; //读SR寄存器 clear = USART1->DR; //读DR寄存器(先读SR,再度DR,就是为了清除IDIE中断) } USART_ClearITPendingBit(USART1,USART_IT_RXNE);}
if(USART_GetITStatus(USART1, USART_IT_IDLE) != RESET) //接收中断(接收到的数据必须是0x0d ...
HAL_UART_Receive_DMA(&huart1,RxBuff,BUFFER_SIZE);” /* USER CODE BEGIN USART1_Init 2 */ __HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE); //使能IDLE中断 //DMA接收函数,此句一定要加,不加接收不到第一次传进来的实数据,是空的,且此时接收到的数据长度为缓存器的数据长度 HAL_UART_Receive_...
__HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE); //使能串口空闲（IDLE）中断 2.在中断函数中调用...
uart3_p++; } if (USART_GetITStatus(USART3, USART_IT_IDLE) != RESET) //收到一帧的数据 {//将接收到的数据发送到串口调试助手上以便观察数据是否正确 u3Temp = uart3_p-1; clr = USART3->SR; clr = USART3->DR; ReceivedUsart3Flag = 1; ...
void USART1_ReceiveIDLE(void); void UART_SendData(USART_TypeDef * Uart,uint8_t *buff,uint16_t size); 在usart.c中加入如下代码 static uint8_t Uar1tRxBuff[UART1_BUFF_SIZE+1]; //定义串口接收buffer USART_RECEIVETYPE Uart1Rx = {
__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE); //打开空闲中断 HAL_UART_Receive_DMA(&huart...
(USART1,USART_IT_TC,DISABLE); //关闭发送完成中断 USART_ITConfig(USART1,USART_IT_RXNE,DISABLE); //关闭接收完成中断 USART_ITConfig(USART1,USART_IT_IDLE,ENABLE); //开启接收空闲中断 USART_Cmd(USART1, ENABLE); //使能串口 } void USART1_DMA_RX(void) { //串口收DMA配置 DMA_InitTypeDef DMA...
__HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);while(1){ //HAL_UART_Transmit(&huart1,(u8*...
USART_ClearITPendingBit(USART1, USART_IT_IDLE); USART_ITConfig(USART1, USART_IT_IDLE,DISABLE); } } u8 USART_GetData(char* cmd,float* D1,float* D2,float* D3){ u8 flag=0; if(USART_ReadOK==1){ if(sscanf(USART_ReadBuff,“CAR:%3s=%f,%f,%f”,cmd,D1,D2,D3)>=2){ ...