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Low power RTC alarm on IMX6ul

Question asked by Guy Shapiro on Dec 29, 2016
Latest reply on Mar 29, 2018 by nickbedbury

Is it possible to power up the IMX6ul using a low power RTC alarm?

 

On the Reference Manual, the RTC alarm is only mentioned on the High Power RTC (SNVS_HP section).  This section states that "this alarm cannot wake up the entire system if it is powered off".

However, the svns resisters section includes a SNVS_LP Time Alarm register, and it look like the Linux device driver do set it.

 

Can I program the IMX6UL to start from a power down (only SNVS_LP power domain powered) on a predefined time?

 

Thanks.

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