STM32实时时钟和闹钟程序

1、includeHled.hH#includedelay.h#includesys.hincludelcd.h#includeusart.h#includertc.hintmain(void)u8t=O;delayjnit():NVIC_Configuration();2uart_init(9600);LED_Init();LCDnit();BEEPJnit();/NVIC/LED/2:29600RTC_Init();POINT_COLOR=GREEN;LCD_ShowString(70,50,200,16,16,，A_AandyA_A，1);/RTC/POINT_COLOR二BLUE:/LCD

2、_ShowString(60J30.200J6,16；1-H);LCD_ShowString(60.162,200,16,16/:H);while(1)if(t!=calendar.sec)t=calendar.sec:LCD_ShowNum(60.130.calendar.w_yean4,16);LCD_ShowNum(100.130,calendar.w_month.2,16);LCD_ShowNum(12430,calendar.w_date,2,16):switch(calendar.week)case0:LCD_ShowString(60,l48,200,166,SundayH);b

3、reak;case1:LCD_ShowString(60,l48,200,16J6,”Monday”);break;case2:LCD_ShowString(60,l48,200,16J6Tuesday);break;case3:LCD_ShowString(60,148,200,16,16,Wednesday”);break;case4:LCD_ShowString(60.148.200,16,16Thursday”)；break;case5:LCD_ShowString(60,148,200,16,16,FridayM);break;case6:LCD_ShowString(60.148.

4、200,16,16/SaturdayH);break;LCD_ShowNum(60.162,calendar.hour,2,16);LCD_ShowNum(84J62,calendar.min216);LCD_ShowNum(108J62,calendar.sec,2J6);LED0=!LED0:delay_ms(10);#includesys.h#includedelay.h#includeusart.h#includertc.h_calendar_objcalendar;/staticvoidRTC_NVIC_Config(void)NVIC_InitTypeDefNVICnitStruc

5、ture;NVIC_InitStructure.NVIC_IRQChannel=RTC_IRQn;/RTCNVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;/13NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;/0,4NVIC_InitStructure.NVIC_IRQChanneICmd=ENABLE;/NVICJnit(&NVIC_InitStruclure);/NVICnitStructNVICu8RTC_Init(void)/u8temp=O;u32flag=O;if(BKP_

6、ReadBackupRcgister(BKP_DRl)!=0 x5050)/RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWRIRCC_APB1Periph.BKRENABLE);/PWRBKPPWR_BackupAccessCmd(ENABLE);/BKP_DeInit();/RCC_LSEConfig(RCC_LSE_ON):/(LSE),while(RCC_GetFlagStatus(RCC_FLAG_LSERDY)=RESET)/RCC,temp+:dclay_ms(10);if(temp=250)returnI;/9RCC_RTCCLKConfig(R

7、CC_RTCCLKSource_LSE);/RTC(RTCCLK),LSERTCRCC_RTCCLKCmd(ENABLE);/RTCRTC_WaitForLastTask();/RTCRTC_WaitForSynchro();/RTCRTC.ITConfig(RTC_IT_SEC.ENABLE);/RTCRTC.ITConfig(RTC_IT_ALR.ENABLE);RTC_WaitForLastTask();/RTCRTC_EnterConfigMode();IIIRTC_SetPrescaler(32767);/RTCRTC_WaitForLastTask();/RTCRTC_Set(20

8、14.12210.O.55);/RTC_ExitConfigMode();/flag=RTC_GetCounter();RTC_WaitForLastTask();RTC_SetAlarm(flag+1);/BKP_WriteBackupRegister(BKP_DR1,OX5O5O):/else/RTC_WaitForSynchro();/RTCRTC_ITConfig(RTCT_SEC.ENABLE);RTC.ITConfig(RTC_IT_ALR.ENABLE);RTC_WaitForLastTask();RTC_NVIC_Config();RTC_Get();return0;/ok/R

9、TC/RTC/RCT/voidRTC_IRQHandler(void)u32flag=0:if(RTC_GetITStatus(RTC_IT_SEC)!=RESET)/RTC_Get();/if(RTC_GetITStatus(RTC_IT_ALR)!=RESET)/RTC_ClearITPendingBit(RTC.IT_ALR);/LED1=!LED1;/flag=RTC_GetCounter();RTC_WaitForLastTask();RTC_SetAlarm(flag+1);/ledRTC_ClearITPendingBit(RTCT_SECIRTC_IT_OW);/RTC_Wai

10、tForLastTask();/123456789101112/312931303130313130313031/312831303130313130313031/:/:1,.0,u8Is_Leap_Year(ul6year)if(year%4=0)if(year%100=0)/4if(year%400=0)return1;/00400elsereturn0;/:0.elsereturn1;elsereturn0;/19701I/1970-2099/0;:/u8consttable_weck12=0,3,3,6,1,4,625,0,3,5;/constu8mon_table12=31,28,3

11、1,30,31,30,3131,30,31,30,31;u8RTC_Set(ul6syear,u8smoiLu8sday,u8hourai8min,u8sec)ul6t;u32seccount=0;if(syear2099)return1;TOC o 1-5 h zfor(t=1970;tsyear;t+)/if(Is_Leap_Year(t)seccount+=31622400;/elseseccount+=31536000;/smon-=1;for(t=0:t=365)(/1970if(Is_Leap_Year(templ)/if(temp=366)temp-=366;/elsetempl

12、+;break;elsetemp-=365;/templ+;calendar.w_year=templ;/temp1=0;while(temp=28)/if(Is_Leap_Year(calendar.w_year)&temp1=1)/if(temp=29)temp-=29;/elsebreak;/2elseif(temp=mon_tabletemp1)temp-=mon_tabletemp1;/elsebreak;tempi+:calendar.w_month=temp1+1:/calendar.w_date=temp+1;/temp=timecount%86400;/calendar.ho

13、ur=temp/3600;/calendar.min=(temp%3600)/60:/calendar.sec=(temp%3600)%60;/calendar.week=RTC_Get_Week(calendar.w_yeaEcalendar.w_month,calendar.w_date)y/return0;/1901-2099)/:/u8RTC_Get_Week(u16year,u8month.u8day)ul6temp2;u8yearH.yearL:yearH=year/100:yearL=year%100:/21,100if(yearH19)yearL+=100:/1900temp2=yearL+yearL/