Holding pins during deepsleep

[pablomargareto]

Hello,

I am using this piece of code to hold a GPIO pin during deepsleep. I want the pin to be hold low when the board to deepsleep:

pin = Pin('P8', mode=Pin.OUT)
pin.value(0)
pin.hold(0)
machine.deepsleep()

When I check P8 during deepsleep I can read a 3.3V.

Does anybody know a way to fix this? Is this working with only some GPIO pins? Which ones?

Thanks,

Pablo

[livius]

@pablomargareto
I suppose that this is an error if it not work for you
i do not tested this yet but hold should preserve state also after reboot
@daniel can bring some light on it

[pablomargareto]

I think so. I did not find any pin that could be hold low during deepsleep mode.

@daniel can you show us some light here?

Thanks a lot,

Pablo