Using POF (Power-fail comparator) on startup

[eb12345]

I need to detect the VCC voltage on the nrf52833 on power-up and wait till it slowly ramps up to 3V. Is there a way to do this using the Power-Fail Comparator. I found another example how to enable the POF, but this will give me an event when the VCC goes below my 3V threshold, which is the opposite of what I'm trying to detect.

[Kenneth]

Hello,

The easiest may just be to make a thread that read the supply voltage using SAADC at given intervals? And then when it's above (or close to 3V) you continue to run your code? As you experience, POF is usually intended for the opposite yes.

Kenneth