Hi Angus, On Sun, Nov 28, 2021 at 11:52 AM Angus Ainslie <an...@akkea.ca> wrote: > > On imx8m it is more correct to read the data register than the pad status > register. > > In output mode the pad status register does not contain the value being > output so we must read the DR for the value. > > In input mode the DR will contain the same value as the PSR when the pad > mode is GPIO. > > If the pad mode is not GPIO and the pin is an input then 0 is always > returned.
Have you tried setting the SION bit of the pad?
