paulrickards on Nostr: It’s #AppleLisaClone update time! I got the next rev of my Lisa breakout card ...

It’s #AppleLisaClone update time! I got the next rev of my Lisa breakout card (power, floppy, keyboard, sound, etc.) and put one together.

It powers on correctly but doesn’t progress to the system test, it’s stuck at the very early power on stage.

Voltages all look correct and in the right places. FloppyEmu powers on. If I hit reset a few times, it randomly progresses to an error 40 (MMU fault) but I think this is a red herring..

#RetroComputing