text: /**
    ******************************************************************************
    * @file    usart.c
    * @brief   This file provides code for the configuration
    *          of the USART instances.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under BSD 3-Clause license,
    * the "License"; You may not use this file except in compliance with the
    * License. You may obtain a copy of the License at:
    *                        opensource.org/licenses/BSD-3-Clause
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "usart.h"
  
  /* USER CODE BEGIN 0 */
  
  /* USER CODE END 0 */
  
  UART_HandleTypeDef huart1;
  
  /* USART1 init function */
  
  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 = 9600;
    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;
    if (HAL_UART_Init(&huart1) != HAL_OK)
    {
      Error_Handler();
    }
    /* USER CODE BEGIN USART1_Init 2 */
  
    /* USER CODE END USART1_Init 2 */
  
  }
  
  void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
  {
  
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(uartHandle->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspInit 0 */
  
    /* USER CODE END USART1_MspInit 0 */
      /* USART1 clock enable */
      __HAL_RCC_USART1_CLK_ENABLE();
  
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**USART1 GPIO Configuration
      PA9     ------> USART1_TX
      PA10     ------> USART1_RX
      */
      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_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
      /* USART1 interrupt Init */
      HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART1_IRQn);
    /* USER CODE BEGIN USART1_MspInit 1 */
  
    /* USER CODE END USART1_MspInit 1 */
    }
  }
  
  void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
  {
  
    if(uartHandle->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspDeInit 0 */
  
    /* USER CODE END USART1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART1_CLK_DISABLE();
  
      /**USART1 GPIO Configuration
      PA9     ------> USART1_TX
      PA10     ------> USART1_RX
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
  
      /* USART1 interrupt Deinit */
      HAL_NVIC_DisableIRQ(USART1_IRQn);
    /* USER CODE BEGIN USART1_MspDeInit 1 */
  
    /* USER CODE END USART1_MspDeInit 1 */
    }
  }
  
  /* USER CODE BEGIN 1 */
  int fputc(int ch, FILE *f)
  { 	
  	while((USART1->SR&0X40)==0);
  	USART1->DR = (unsigned char) ch;      
  	return ch;
  }
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  