PocketBeagle wake from external RTC

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js1970th...@gmail.com

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Dec 9, 2019, 5:30:01 PM12/9/19
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Hello,

I have a PocketBeagle project that I hope to run from battery.  To extend battery life, I would like it to power down completely, then be wakened by an external RTC every few hours.

I thought about waking the PocketBeagle by tying the alarm pin of the RTC to the "PB" (PushButton) pin on the PB.  This initiates the power-up!  But the TPS65217 PMIC will power the board back down if the "button" is asserted for more than 8 seconds.

Is there a way to disable the "8 second" rule?  Or another way to accomplish what I'm trying to do?

Thanks,
  John

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