HA库记录--串口的使用

1.STM32CubeMX 配置串口

 

2.空闲中断接受数据

1.配置接收空闲中断
HAL_UARTEx_ReceiveToIdle_IT(&huart1, rx_buffer,BUFFER_SIZE);  //开启空闲中断接收


2.重写空闲中断回调函数,取走数据
void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
{
	if(huart == &huart1)
	{
		lwQueWriteString(&QueRx1, rx_buffer, Size);//数据填入 FIFO
		HAL_UARTEx_ReceiveToIdle_IT(&huart1, rx_buffer,BUFFER_SIZE);  //准备下次空闲中断
	}
}

3.数据的发送

HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size, uint32_t Timeout); //阻塞发送

HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size); //中断发送

HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size); //DMA发送