Lab4-3

--------------------- stm32f1xx_it.c file ----------------------
void EXTI0_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI0_IRQn 0 */

  /* USER CODE END EXTI0_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
  /* USER CODE BEGIN EXTI0_IRQn 1 */
  for (int i=0; i<10 ;i++) {
    while(__HAL_UART_GET_FLAG(&huart2, UART_FLAG_TC) == RESET) {}
      HAL_UART_Transmit(&huart2, (uint8_t*) "W", 1, 1000);

    HAL_Delay(300);
  }
  /* USER CODE END EXTI0_IRQn 1 */
}

/**
* @brief This function handles EXTI line[15:10] interrupts.
*/
void EXTI15_10_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI15_10_IRQn 0 */

  /* USER CODE END EXTI15_10_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_13);
  /* USER CODE BEGIN EXTI15_10_IRQn 1 */
  for (int i=0; i<10 ;i++) {
    while(__HAL_UART_GET_FLAG(&huart2, UART_FLAG_TC) == RESET) {}
      HAL_UART_Transmit(&huart2, (uint8_t*) "T", 1, 1000);

    HAL_Delay(300);
  }
  /* USER CODE END EXTI15_10_IRQn 1 */
}


-------------- main.c --------------------
  while (1)
  {
  /* USER CODE END WHILE */
    while(__HAL_UART_GET_FLAG(&huart2, UART_FLAG_TC) == RESET) {}
      HAL_UART_Transmit(&huart2, (uint8_t*) "M", 1, 1000);

    HAL_Delay(300);
  /* USER CODE BEGIN 3 */

  }