實驗現象:
核心程式碼:
int main(void) { /* USER CODE BEGIN 1 */ RTC_DateTypeDef sDate; RTC_TimeTypeDef sTime; uint8_t second_tmp = 0; /* USER CODE END 1 */ /* MCU Configuration----------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* Configure the system clock */ SystemClock_Config(); /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_RTC_Init(); MX_USART1_UART_Init(); SystemClock_Config(); /* USER CODE BEGIN 2 */ LED_RED_ON; //ºìµÆ³£ÁÁ usart1.printf("\x0c"); //ÇåÆÁ usart1.printf("\033[1;32;40m"); //ÉèÖÃ×ÖÌåÖÕ¶ËΪÂÌÉ« usart1.printf("\r\n\r\nhello! I am iCore1S!\r\n\r\n\r\n"); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ HAL_Delay(100); //¶ÁÈ¡RTCÈÕÆÚºÍʱ¼ä HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN); HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN); if(second_tmp != sTime.Seconds){ //µ±ÃëÊý¾ÝÓ뱸·Ý²»Ò»ÖÂʱ£¬ÏòÖն˴òӡʱ¼ä/ÈÕÆÚ usart1.printf(" %02d:%02d:%02d ",sTime.Hours,sTime.Minutes,sTime.Seconds); usart1.printf("20%02d-%02d-%02d \r",sDate.Year,sDate.Month,sDate.Date);\ second_tmp = sTime.Seconds; //ÃëÊý¾Ý±¸·Ý } } /* USER CODE END 3 */ }
原始碼下載連結:
連結:http://pan.baidu.com/s/1b1hxF4 密碼:pg08