RTC: are interrupt flag set during Vbat mode

I have a STM32U595 and I use the RTC in binary mode.

If an SSR underflow occurs during Vbat mode, will the SSRUF be set so after power recovery I can manage the interrupt ?

Best answer by ELABI.1

Hi @nicolas,

Yes, SSRUF will still be set when VDD is back, with interrupt generation, which can then be served after NVIC initialization.

You can refer to the Reference Manual RM0456 section 63 Real-time clock (RTC) for more information.

Thanks.

ELABI.1

ELABI.1Best answer

Technical Moderator

Hi @nicolas,

Yes, SSRUF will still be set when VDD is back, with interrupt generation, which can then be served after NVIC initialization.

You can refer to the Reference Manual RM0456 section 63 Real-time clock (RTC) for more information.

Thanks.

ELABI.1

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Senior II

Thank you for the answer. I did look on the RM0456 but I didn't found this information.

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