IDE_usart sirial commution > 교육용자료

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/* Includes ------------------------------------------------------------------*/
  #include "main.h"
  #include "string.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
  #include <stdio.h>
/* USER CODE END Includes */

/* USER CODE BEGIN 0 */
  #ifdef __GNUC__
  #define USART_TX uint16_t __io_putchar(uint16_t data)
  #else
  #define USART_TXE uint16_t fputc(uint16_t data, FILE *f)
  #endif
  USART_TX {
  if (data == '\n')
    HAL_UART_Transmit(&huart3, (uint8_t*) "\r", 1, 0xffff);
    HAL_UART_Transmit(&huart3, (uint8_t*)  &data, 1, 0xffff);
    return data;
    }
/* USER CODE END 0 */
/* USER CODE BEGIN WHILE */
  while (1) {
  printf ("Suwon Injae Tech Institute!\n");
  HAL_Delay (200);
  printf (" \n");
  printf ("I love you!\n");
  HAL_Delay (200);
  HAL_GPIO_TogglePin(GPIOB,LD1_Pin|LD2_Pin|LD3_Pin);
  HAL_Delay(200);
  }
    /* USER CODE END WHILE */