Component wakeup while changing power supply voltage

[Gili Elias]

HI, I'm using sd_app_evt_wait() for getting back to sleep mode between advertisings. I noticed that when I change the voltage in a small interval mode (40 ms between advs) the system gets an event, exit sd_app_evt_wait() and going back to consume high current. I'm not sure why it happens. It's much more rare to fail the system when it's on big intervals (every 2 seconds for example), but still, if I change the voltage in once (for example from 3.0V to 2.7 V) it will exit "wait for event" mode almost every time in 40ms intervals and sometimes in 2 sec intervals.

My problem begins when I'm trying to connect my card to a battery, then I see similar occurrence of getting out from "wait for event mode".

Anyone knows what the problem may be?

Thanks.

[Asbjørn]

What example are you working on and would it be possible for you to share the main file with us here? It sounds like the voltage drop could trigger an event on one of the peripheral for some reason. You mention that the power consumption goes up, are you able to measure how much it increases? Does the increase correspond to the current consumption of one or more of the peripherals or MCU itself?