以串口UART DMA传输为例： ... HAL_UART_Transmit_DMA(&huart2,Rx_Data,sizeof(Rx_Data)); __HAL_DMA_DISABLE_IT(&hdma_usart2_rx,DMA_IT_HT); //关闭半传输DMA中断 ... //传输完成回调 void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef * huart, uint16_t Size) { if(huart->Instance == USART2){ HAL_UART_Transmit_DMA(&huart2,Rx_Data,Size); HAL_UARTEx_ReceiveToIdle_DMA(&huart2, Rx_Data, sizeof(Rx_Data)); __HAL_DMA_DISABLE_IT(&hdma_usart2_rx,DMA_IT_HT); } }
