Just got myself a Apple IIe off eBay which had a PSU issue. Repaired the PSU and computer is now booting. I've run the self diagostic test and all looks good.
I now thought I'd build myself the ProDOS ROM from https://github.com/tjboldt/ProDOS-ROM-Drive
I've written the GamesWithFirmware.po to a 27C801 and verified ok. Have also tested all the logic chips and double checked my soldering - all good.
When I bootup the computer ProDOS starts but them seem to crash, at least it looks like a crash to me.
First off, should I just be able to plug in the card and boot and get the menu? (New Apple user here)
I'm booting and it looks like some debug info - Googled FF5A but not finding much. Does this point to some other issue I have the computer?