Mesa 7I92TM Parallel port pin mapping

I did a diff on the two readhmid outputs from the re-flashed one vs. another one that I hadn't touched and they were the same for the pins in question. So either the flash didn't take or something else is broken. (there were other differences in the two files)

In any event for now I'm going to go back to making a DB-25 converter since I've exceeded my rabbit hole depth limit

Thank you for sticking with me.

After flashing, you need to power cycle  the 7I92 or use mesaflash's  --reload option

You should not need to use any kind of cable adapter

If you have a unique breakout, firmware can be built for this in a few minutes