Posted by beandigital on 2017-06-20 15:39

Hi

I am using the RTC on a STM32F072 device. I can set the value of the clock and then read it back. But if I read it again it just keeps reading the same time. It seems to be stuck at this time. Here is the code I use :-

Any help appreciated.

Thanks
Jon

/*##-2- Configure the Time #################################################*/
/* Set Time: 02:20:00 */
stimestructure.Hours = rtc_hours;
stimestructure.Minutes = rtc_mins;
stimestructure.Seconds = rtc_secs;
stimestructure.TimeFormat = RTC_HOURFORMAT12_AM;
stimestructure.DayLightSaving = RTC_DAYLIGHTSAVING_NONE ;
stimestructure.StoreOperation = RTC_STOREOPERATION_SET;

if(HAL_RTC_SetTime(&hrtc, &stimestructure, RTC_FORMAT_BIN) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}

HAL_RTC_GetTime(&hrtc, &stimestructure2, RTC_FORMAT_BIN);
rtc_hours = stimestructure2.Hours;
rtc_mins = stimestructure2.Minutes;
rtc_secs = stimestructure2.Seconds;