4.运行STM32N6 的UART并测试

static void MX_USART1_UART_Init(void)

{



  /* USER CODE BEGIN USART1_Init 0 */



  /* USER CODE END USART1_Init 0 */



  /* USER CODE BEGIN USART1_Init 1 */



  /* USER CODE END USART1_Init 1 */

  huart1.Instance = USART1;

  huart1.Init.BaudRate = 115200;

  huart1.Init.WordLength = UART_WORDLENGTH_8B;

  huart1.Init.StopBits = UART_STOPBITS_1;

  huart1.Init.Parity = UART_PARITY_ODD;

  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();

  }

  /* USER CODE BEGIN USART1_Init 2 */



  /* USER CODE END USART1_Init 2 */



}

 if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aTxStartMessage, TXSTARTMESSAGESIZE)!= HAL_OK)

  {

    /* Transfer error in transmission process */

    Error_Handler();

  }



  /*##-2- Put UART peripheral in reception process ###########################*/

  /* Any data received will be stored in "aRxBuffer" buffer : the number max of

     data received is 10 */

  if(HAL_UART_Receive_IT(&huart1, (uint8_t *)aRxBuffer, RXBUFFERSIZE) != HAL_OK)

  {

    /* Transfer error in reception process */

    Error_Handler();

  }



  /*##-3- Wait for the end of the transfer ###################################*/

  /*  Before starting a new communication transfer, you need to check the current

      state of the peripheral; if it's busy you need to wait for the end of current

      transfer before starting a new one.

      For simplicity reasons, this example is just waiting till the end of the

      transfer, but application may perform other tasks while transfer operation

      is ongoing. */

  while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY)

  {

    /* While waiting for character from PC side, LED1 is toggling every 100ms */

    BSP_LED_Toggle(LED1);

    HAL_Delay(100);

  }



  /*##-4- Send the received Buffer ###########################################*/

  if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aRxBuffer, RXBUFFERSIZE)!= HAL_OK)

  {

    /* Transfer error in transmission process */

    Error_Handler();

  }



  /*##-5- Wait for the end of the transfer ###################################*/

  /*  Before starting a new communication transfer, you need to check the current

      state of the peripheral; if it's busy you need to wait for the end of current

      transfer before starting a new one.

      For simplicity reasons, this example is just waiting till the end of the

      transfer, but application may perform other tasks while transfer operation

      is ongoing. */

  while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY)

  {

  }



  /*##-6- Send the End Message ###############################################*/

  if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aTxEndMessage, TXENDMESSAGESIZE)!= HAL_OK)

  {

    /* Transfer error in transmission process */

    Error_Handler();

  }



  /*##-7- Wait for the end of the transfer ###################################*/

  while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY)

  {

  }



  /* Turn on LED1 if test passes then enter infinite loop */

  BSP_LED_On(LED1);