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felia · 2019-02-08

Hi, I have a strange behavior with the RTC alarm only with some MCU. In my project use the STM32L476, when I set the alarm the MCU wake up without problem, but this work fine only with some board. On the other boards with the same MCU and the same FW...

felia · 2019-02-09

The alarm is only at the specific time, every day.The time is configured to 24H so it's not be AM/PM related.After failing and being reset the clock display the expected time, the clock doesn't stop never.For an unknown reason with some MCU works fin...

felia · 2019-02-09

Thank you for answer, but the RTC registers' content is ok an the RTC is running on the problematic boards. If the problematic board wake up by the HW RESET or by GPIO the system works.With short period, for example 5 seconds, the wake up by the Alar...

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RTC alarm problem only with some MCUs

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