oasisdong 发表于 2019-3-26 08:21 之前用标准库函数是有DMA空闲中断的，stm32cubeMX 生成的Hal库 找不到了？ ① /** * @brief This function handles DMA2 stream2 global interrupt. */ void DMA2_Stream2_IRQHandler(void) { /* USER CODE BEGIN DMA2_Stream2_IRQn 0 */ /* USER CODE END DMA2_Stream2_IRQn 0 */ HAL_DMA_IRQHandler(&hdma_spi1_rx); /* USER CODE BEGIN DMA2_Stream2_IRQn 1 */ /* USER CODE END DMA2_Stream2_IRQn 1 */ }复制代码 ②void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma)： /* Transfer Complete Interrupt management ***********************************/ if ((tmpisr & (DMA_FLAG_TCIF0_4 << hdma->StreamIndex)) != RESET) { if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET) { /* Clear the transfer complete flag */ regs->IFCR = DMA_FLAG_TCIF0_4 << hdma->StreamIndex; if(HAL_DMA_STATE_ABORT == hdma->State) { /* Disable all the transfer interrupts */ hdma->Instance->CR &= ~(DMA_IT_TC | DMA_IT_TE | DMA_IT_DME); hdma->Instance->FCR &= ~(DMA_IT_FE); if((hdma->XferHalfCpltCallback != NULL) || (hdma->XferM1HalfCpltCallback != NULL)) { hdma->Instance->CR &= ~(DMA_IT_HT); } /* Clear all interrupt flags at correct offset within the register */ regs->IFCR = 0x3FU << hdma->StreamIndex; /* Process Unlocked */ __HAL_UNLOCK(hdma); /* Change the DMA state */ hdma->State = HAL_DMA_STATE_READY; if(hdma->XferAbortCallback != NULL) { hdma->XferAbortCallback(hdma); } return; } if(((hdma->Instance->CR) & (uint32_t)(DMA_SxCR_DBM)) != RESET) { /* Current memory buffer used is Memory 0 */ if((hdma->Instance->CR & DMA_SxCR_CT) == RESET) { if(hdma->XferM1CpltCallback != NULL) { /* Transfer complete Callback for memory1 */ hdma->XferM1CpltCallback(hdma); } } /* Current memory buffer used is Memory 1 */ else { if(hdma->XferCpltCallback != NULL) { /* Transfer complete Callback for memory0 */ hdma->XferCpltCallback(hdma); } } } /* Disable the transfer complete interrupt if the DMA mode is not CIRCULAR */ else { if((hdma->Instance->CR & DMA_SxCR_CIRC) == RESET) { /* Disable the transfer complete interrupt */ hdma->Instance->CR &= ~(DMA_IT_TC); /* Process Unlocked */ __HAL_UNLOCK(hdma); /* Change the DMA state */ hdma->State = HAL_DMA_STATE_READY; } if(hdma->XferCpltCallback != NULL) { /* Transfer complete callback */ hdma->XferCpltCallback(hdma); } } } }复制代码
////经摸索发现，STM32F030C8T6 串口1DMA发送完成中断 回调函数是这个 void HAL_UART_TxCpltCallback ( UART_HandleTypeDef* huart ) { if ( huart->Instance == USART1 ) // 判断是由哪个串口触发的中断 { ; } }
