int main(void)

{

  /* USER CODE BEGIN 1 */

    RTC_TimeTypeDef sTime;

  RTC_DateTypeDef sDate;

    int second_bak = ;

  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  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_RTC_Init();

  MX_USART6_UART_Init();

  /* USER CODE BEGIN 2 */

    usart6.initialize();                                                                                        //´®¿Ú²¨ÌØÉèÖÃ

    usart6.printf("\x0c");                                                                                              //ÇåÆÁ

    usart6.printf("\033[1;32;40m");                                       //ÉèÖÃÖÕ¶Ë×ÖÌåΪÂÌÉ«

    usart6.printf(" Hello, I am iCore4!\r\n");                                                        //´®¿ÚÐÅÏ¢Êä³ö

    LED_GREEN_ON;

    //ÉèÖÃRTCÈÕÆÚºÍʱ¼ä

    my_rtc.set_date(,,,);

    my_rtc.set_time(,,);

  /* USER CODE END 2 */

  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while ()

  {

  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

        HAL_Delay();

        //¶ÁÈ¡RTCÈÕÆÚºÍʱ¼ä

        HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);

        HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);

        if(second_bak != sTime.Seconds){

            usart6.printf(" %02d:%02d:%02d  ",sTime.Hours,sTime.Minutes,sTime.Seconds);

            usart6.printf("20%02d-%02d-%02d  \r",sDate.Year,sDate.Month,sDate.Date);

            second_bak = sTime.Seconds;

        }

  }

  /* USER CODE END 3 */

}