On Thu, 26 Nov 1998, Aaron Christopher Finney wrote:
> 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.
>
> > 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 have not actually seen one used on other than Kaypro, bu my best guess
is outlined above.
- don
> > I'd love to find out more.
> >
> > Arlen Michaels
> > amichael_at_nortel.ca
> >
>
> Aaron C. Finney Systems Administrator WFI Incorporated
> ------------------------------------------------------------------------
> "UNIX is an exponential algorithm with a seductively small constant."
>
>
donm_at_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
Received on Thu Nov 26 1998 - 16:02:47 GMT