Hi
I use hal functions HAL_RTC_SetTime and HAL_RTC_SetDate for set date and time in RTS.
After set date and time RTC works correctly.
Problem appiars after reset.
After reset time and date read by functions HAL_RTC_GetTime and HAL_RTC_GetDate don't correspond to current time. After reset time is 00:00:00. Date is 01 jan 00 year.
Why?
What's reset time and date?
I use this function for init RTC:
void MX_RTC_Init(void)
{
hrtc.Instance = RTC;
if (HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR0) == 0x32F2)
return;
HAL_RTCEx_BKUPWrite(&hrtc,RTC_BKP_DR0,0x32F2);
RTC_Status = 0;
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 127;
hrtc.Init.SynchPrediv = 255;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if (HAL_RTC_Init(&hrtc) != HAL_OK)
{
configASSERT(0);
}
}
Second question.
What is purpose of StoreOperation fild in the RTC_TimeTypeDef?
How does it use?
