I finally got it going...
CPM is really picky about the cards in your system and what slot they are in (i.e. Serial in Slot 2). But the trick on a Rev 0 (without auto-start ROM, auto-reset doesn't matter) is that ALS "The CPM Card" can only reside in Slot 7. Any other slot it doesn't like, none of my other cards care (I even run a RamEx 16k card and a Apple ROM card at the same time). My Rev 4 Apple II supports other slots for CPM (4&5 even though only 4 should work) anyway...
Kinda cool running a 6 MHZ Z80 in an old Apple II.
Cheers,
Corey
I love your set up, looks great! Nice to see a rev 0 in use. Running my z80 card is nice, it's allowed me so much more freedom to run CPM based software. I'm still searching for a PC transporter so I can run MSDOS.
The peripheral BUS on the rev 0, is slightly different than later rev motherboards. I think one or two of the peripheral pins are bussed to all slots on the rev 0 and not on later revisions. I can't remember details offhand, but it could account for some slot dependent issues, not seen in later revisions.
Regards,
Mike Willegal