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请各位大佬解答一下看看有没有类似的问题
这边调试其他的功能，下载程序之后还是没有问题的 隔一段时间时候程序就起不来了，但是屏蔽了MX_DMA_Init就没有问题了，DMA是用于串口DMA空闲中断的，感觉去掉了也没有影响功能，只是不明白为什么突然不行了，仿真跑到的地方截图如下：
主要的代码贴图以及代码如下：
void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Stream0_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Stream0_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream0_IRQn);
/* DMA1_Stream1_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Stream1_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream1_IRQn);
}
void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 1500000;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
{
Error_Handler();
}
HAL_UARTEx_ReceiveToIdle_DMA(&huart1, UART_RECV_RXBUF, UART_BUF_SIZE);
}
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(uartHandle->Instance==USART1)
{
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInitStruct.Usart16ClockSelection = RCC_USART16CLKSOURCE_D2PCLK2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hdma_usart1_tx.Instance = DMA1_Stream0;
hdma_usart1_tx.Init.Request = DMA_REQUEST_USART1_TX;
hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart1_tx.Init.Mode = DMA_NORMAL;
hdma_usart1_tx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);
hdma_usart1_rx.Instance = DMA1_Stream1;
hdma_usart1_rx.Init.Request = DMA_REQUEST_USART1_RX;
hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart1_rx.Init.Mode = DMA_NORMAL;
hdma_usart1_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);
HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
}
}
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{
if(uartHandle->Instance==USART1)
{
__HAL_RCC_USART1_CLK_DISABLE();
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
HAL_DMA_DeInit(uartHandle->hdmatx);
HAL_DMA_DeInit(uartHandle->hdmarx);
HAL_NVIC_DisableIRQ(USART1_IRQn);
}
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
}
//串口接收完成回调函数
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
}
//串口发生错误回调函数
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
{
}
//串口接收事件回调函数 如果是空闲中断触发ReceptionType = HAL_UART_RECEPTION_STANDARD
void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
{
//HAL_UART_RECEPTION_TOIDLE 说明是DMA接收完成，或者半传输完成
if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE)
{
}
//HAL_UART_RECEPTION_STANDARD 说明是空闲中断触发的接收事件
if (huart->ReceptionType == HAL_UART_RECEPTION_STANDARD)
{
SCB_InvalidateDCache_by_Addr((uint32_t *)UART_RECV_RXBUF, uart1rx_data.rx_datalen);
memcpy(UART_RECV_ShellBUF, UART_RECV_RXBUF, uart1rx_data.rx_datalen);
SCB_CleanDCache_by_Addr((uint32_t *)UART_RECV_ShellBUF, uart1rx_data.rx_datalen); // 打开cache使用的方式 特别是Dcache
shellHandler(&shell, (char)UART_RECV_ShellBUF[0]);
uart1rx_data.rx_dataflag = 1;
uart1rx_data.rx_datalen = Size;
}
}
void DMA1_Stream0_IRQHandler(void)
{
HAL_DMA_IRQHandler(&hdma_usart1_tx);
}
/**
* @brief This function handles DMA1 stream1 global interrupt.
*/
void DMA1_Stream1_IRQHandler(void)
{
HAL_DMA_IRQHandler(&hdma_usart1_rx);
}
/**
* @brief This function handles USART1 global interrupt.
*/
void USART1_IRQHandler(void)
{
/* USER CODE BEGIN USART1_IRQn 0 */
/* USER CODE END USART1_IRQn 0 */
HAL_UART_IRQHandler(&huart1);
HAL_UARTEx_ReceiveToIdle_DMA(&huart1,UART_RECV_RXBUF,UART_BUF_SIZE); //重新开启串口空闲中断和DMA接收,一定要放在这里
/* USER CODE BEGIN USART1_IRQn 1 */
/* USER CODE END USART1_IRQn 1 */
}
去掉MX_DMA_Init是没有问题的 功能也不不影响 但是不知道为什么不行呢 这个有一个boot程序的 在boot下是没有问题的，有遇到类似的问题可以分析一下呢
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发表于 2024-12-29 17:44:15
发表于 2024-12-30 06:40:38
楼主
