BINGO! YAHTZEE! The link AndyO posted to youtube has a link to download code that works. That code does indeed work. Sam Wechsler's code did the trick for me. S. Wechsler pointed out that he was opening /dev/gpiomem4, whereas the code I had was opening /dev/gpiomem0. I believe that's the key change.
So I'm all good now.
So I'm all good now.
Statistics: Posted by bigcrater — Thu Mar 07, 2024 1:08 am