I have a problem with some current consumption I cannot explain. I first thought it had something to do with floating pins or something, but that does not seem to be the case.
The problem boils down to this: after startup, I configure pins, and. among other things, I configure the GPIOTE, to generate a port interrupt, and enable 2 pins which are connected to a switch. When I then go to low power, all is fine, current consumption is about 20 uA (I have some peripherals on my board, so the 20 uA is as expected).
However, when I receive a first GPIOTE interrupt, when pressing a button, my current consumption increases to about 600 uA. I really cannot figure out what I am doing wrong. The only thing is that, when I disable the GPIOTE interrupt, but still operate everything else, like timers and such, the sleep mode current stays at around 20 uA.
Is there something in a GPIOTE interrupt that keeps something awake in the chip? Can anyone give me a hint of what might be wrong?
BTW: I am not using the app_gpiote library, I wrote my own, much more limited version. Maybe I need to reset something in my interrupt routine, I do not know. Any ideas are welcome.
