26 Nov
1998
26 Nov
'98
8:02 a.m.
On Thu, 26 Nov 1998, Aaron Christopher Finney wrote:
donm(a)cts.com
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
Chairman, Dina-SIG of the San Diego Computer Society
Clinging tenaciously to the trailing edge of technology.
Sysop - Elephant's Graveyard (CP/M) Z-Node 9 - 619-454-8412
*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
see old system support at http://www.psyber.com/~tcj
visit the "Unofficial" CP/M Web site at http://cws86.kyamk.fi/mirrors/cpm
with Mirror at http://www.mathcs.emory.edu/~cfs/cpm
On Thu, 26 Nov 1998, Arlen Michaels wrote:
> Maybe what I have is just a partial system.
> There's nothing on my board that can run native CP/M (ie, no 8080 or Z80
> processor). It's just one board carrying the 8088, RAM, (boot?) eprom, and
> logic. It's not even clear how it connects to anything else--apart from an
> empty dip socket in the corner and a couple of lugs to connect +5 vdc,
> there's no obvious electrical interface. Of course, I have no documents to
> help me :) Clearly I don't know what I'm missing: is there another base
> board that's supposed to go with this "Co-Power" card?
The Co-Power card(s) as used on the Kaypro series consisted of a main
board (about 5.25" drive size), a daughter board if the card carried
maximum memory, and an adapter board that connected by a narrow ribbon
cable to the main board.
The adapter board carried a socket for the Z-80 on the top side and pins
on the bottom side to plug into the Kaypro's socket for the Z-80. (It
carried some other chips also, of course.) I would assume that the
daughter card and the software would be the two things that would be
changed for use in other machines with other processors.
Aha...it sounds like you just have the upgrade kit. To
use this, you'd
need the CP/M computer it was designed for. I forget; did you mention that
it says ATR on it somewhere? I don't have a part number list to identify
which machine it's for, unfortunately.
I have not actually seen one used on other than Kaypro, bu my best guess
is outlined above.
- don
Did they make a different model for each host
computer, or did they use a
single pcb design with different interconnects and/or eproms to suit each
target system?
To the best of my (limited) knowledge, it was the same board just modified
to interface to specific machines. Don Maslin might know more about the
magnitude of the differences between models. I'd love
to find out more.
Arlen Michaels
amichael(a)nortel.ca
Aaron C. Finney Systems Administrator WFI Incorporated
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