C语言mktime()

 1 struct tm {
 2    int tm_sec;         /* 秒，范围从 0 到 59                */
 3    int tm_min;         /* 分，范围从 0 到 59                */
 4    int tm_hour;        /* 小时，范围从 0 到 23                */
 5    int tm_mday;        /* 一月中的第几天，范围从 1 到 31                    */
 6    int tm_mon;         /* 月份，范围从 0 到 11                */
 7    int tm_year;        /* 自 1900 起的年数                */
 8    int tm_wday;        /* 一周中的第几天，范围从 0 到 6                */
 9    int tm_yday;        /* 一年中的第几天，范围从 0 到 365                    */
10    int tm_isdst;       /* 夏令时                        */    
11 };

static void RTC_Config(void)
{
#if 1
    NVIC_InitTypeDef NVIC_InitStructure; 
    EXTI_InitTypeDef EXTI_InitStructure;
    /* Enable the PWR clock */
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR , ENABLE);
//    RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
    /* Allow access to RTC */
    PWR_RTCAccessCmd(ENABLE);    
    
    /* LSE used as RTC source clock */
    /* The RTC Clock may varies due to LSE frequency dispersion. */   
    /* Enable the LSE OSC */ 
    RCC_LSEConfig(RCC_LSE_ON);    
    //RCC_LSEConfig(RCC_LSE_Bypass);
    /* Wait till LSE is ready */  
    while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
    {
    }    
    
    /* Select the RTC Clock Source */
    RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);    
    
    /* Enable the RTC Clock */
    RCC_RTCCLKCmd(ENABLE);    
    
    /* Wait for RTC APB registers synchronisation */
    if (ERROR == RTC_WaitForSynchro())
    {
        printf("Wait for RTC APB registers synchronisation Failedrn");
    }        
#endif     
    /* Calendar Configuration */
    RTC_InitStructure.RTC_AsynchPrediv = 127;//0x7F;
    RTC_InitStructure.RTC_SynchPrediv    = 0x120; /* (37KHz / 128) - 1 = 0x120*/
    RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
    if(RTC_Init(&RTC_InitStructure) == ERROR)
    {
        printf("Rtc_Init failedrn");
    }        
    RTC_TimeStampCmd(RTC_TimeStampEdge_Rising,ENABLE);

}

time_t GetTimeStamp(void)    //获取时间戳
{
    RTC_DateTypeDef sdatestructure;  
    RTC_TimeTypeDef stimestructure;     
    struct tm tmstr; 
    RTC_GetDate(RTC_Format_BIN, &sdatestructure);
    RTC_GetTime(RTC_Format_BIN, &stimestructure);
    tmstr.tm_year = sdatestructure.RTC_Year;
    tmstr.tm_mon = sdatestructure.RTC_Month;
    tmstr.tm_mday = sdatestructure.RTC_Date;
    tmstr.tm_hour = stimestructure.RTC_Hours;
    tmstr.tm_min = stimestructure.RTC_Minutes;
    tmstr.tm_sec = stimestructure.RTC_Seconds;
    printf("%u-%u-%u-%u-%u-%u.rn", tmstr.tm_year+1900,tmstr.tm_mon+1, tmstr.tm_mday, tmstr.tm_hour,tmstr.tm_min, tmstr.tm_sec);
    return mktime(&tmstr);
}
void SetRtcTime(time_t timestamp) //设置RTC时间
{
    RTC_DateTypeDef sdatestructure;  
    RTC_TimeTypeDef stimestructure;     
    struct tm *tmstr; 
    tmstr = localtime(&timestamp);
    printf("set>>%u-%u-%u-%u-%u-%u.rn", tmstr->tm_year+1900,tmstr->tm_mon+1, tmstr->tm_mday, tmstr->tm_hour,tmstr->tm_min, tmstr->tm_sec);
    sdatestructure.RTC_Year = (tmstr->tm_year);
    sdatestructure.RTC_Month = tmstr->tm_mon;
    sdatestructure.RTC_Date = tmstr->tm_mday;
    sdatestructure.RTC_WeekDay = tmstr->tm_wday;
    stimestructure.RTC_Hours = tmstr->tm_hour;
    stimestructure.RTC_Minutes = tmstr->tm_min;
    stimestructure.RTC_Seconds = tmstr->tm_sec;
    RTC_SetTime(RTC_Format_BIN,&stimestructure);    
    RTC_SetDate(RTC_Format_BIN, &sdatestructure);

}