It was a software / brainware problem. Turns out you are supposed to read pins from one register and write them to a different one. Doh.
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Spoiler: I still can't figure it out
. The voltage changes at the pin, but I can't detect it in software.Thanks. Twitter will use this to make your timeline better. UndoUndo
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