RTC problem for K60

[AaronsCook]

Hi, All

I have a question for K60's RTC. The RTC has VBAT power-supply and OSC 32.768 as clock.

But how can I make sure that the RTC is Running When the chip power down and re-power?

Is it ture to read the RTC millisecond counter and to judge it not zero?

Thanks

wang

[eduardo_viramon · Accepted solution]

Wang,

In fact that is the case, once awake MCU can check the RTC counter register to detect change to the counter. Read the reference manual in detail to understand the cases where the counter may be read as zero like counter overflow or invalid time.

Regards,

Eduardo

[AaronsCook]

Hi, Eduardo

Thank you for your help~

Regards,

Wang