Is It possible to do permanent rtc initialisation ?

[oziesin]

Hi , i have a couple of questions.

Doing initialisation every first power on may cause any error or latency  ?

Which clock source use when RTC is powered on VBAT ?

Thanks any helps

[waclawek.jan]

> Doing initialisation every first power on may cause any error or latency  ?

You may want to read this thread, mainly its end (post of ALABB (ST Employee), 2 months ago)

> Which clock source use when RTC is powered on VBAT ?

LSE.

JW