STM32Cube IDE配置串口发送与接收

此项目源码下载地址:https://github.com/lizhiqiang0204/STM32CubeIDE_Uart

串口与中断配置如下

在生成的main函数中，添加开启串口接收中断

  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */

  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */

  MX_GPIO_Init();

  MX_USART1_UART_Init();

  /* USER CODE BEGIN 2 */

  LED2(OFF);

  HAL_UART_Receive_IT(&huart1, (uint8_t *)&aRx1Buffer, );//使能串口接收中断

  printf("************FreeRTOS********************\r\n");

  /* USER CODE END 2 */

然后在接收中断回调函数中写接收过程

/* USER CODE BEGIN 4 */

/**

  * @brief  Rx Transfer completed callbacks.

  * @param  huart pointer to a UART_HandleTypeDef structure that contains

  *                the configuration information for the specified UART module.

  * @retval None

  */

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(huart);

  /* NOTE: This function Should not be modified, when the callback is needed,

           the HAL_UART_TxCpltCallback could be implemented in the user file

   */

    if(huart->Instance == huart1.Instance)

    {

        if(bRx1_complete != )

            return;

        if(Uart1_Rx_Cnt >= )

        {

            Uart1_Rx_Cnt = ;

            memset(Uart1_RxBuff,0x00,sizeof(Uart1_RxBuff));

        }

        else

        {

            Uart1_RxBuff[Uart1_Rx_Cnt] = aRx1Buffer;

            Uart1_Rx_Cnt++;

            if((Uart1_RxBuff[Uart1_Rx_Cnt-] == 0x0A)&&(Uart1_RxBuff[Uart1_Rx_Cnt-] == 0x0D))

            {

                Uart1_Rx_Cnt= ;

                bRx1_complete = ;

            }

        }

    }

    HAL_UART_Receive_IT(&huart1, (uint8_t *)&aRx1Buffer, );

}

/* USER CODE END 4 */

调试结果如下：