Greg,
Thanks for the response. The article you reference is also the one bit of
documentation I was able to find. It's been a big help. I have been in contact
with Bob and recently picked up one of his RAM/EPROM boards to use while I get
the system restored.
Mike
On Wednesday, January 8, 2020, 2:29:32 PM CST, Gregory Beat
<w...@icloud.com> wrote:
Mike -
Cer-Comp5566 Ricochet AvenueLas Vegas, NV 89110(702) 452-0632William E. Vergona
wrote firmware on those two (2), 2708 ROMs.He later (1980s) worked with Tandy
(Coco-3) Color Computer products.==‘68 Journal, May 1980 (Back to Future, 40
years later)MiniDisk+ DOS , Pages 11 -
13http://www.swtpcemu.com/swtpc/68MJArchive/V02N05_May1980.pdf
Have you contacted Bob Applegate (Corsham
Tech)?https://www.corshamtech.com/ss-50-faqs/He might be aware of source from
his SS-50 clients and contacts.
Bob reopened his business (Corsham) three weeks ago, for a period of time.I did
not see him at VCF Midwest, due to his health
issues.https://www.corshamtech.com/back-in-business-for-now/
GregChicago==From: Mike Douglas <deramp5...@yahoo.com>
To: cctalk@classiccmp.org
Subject: SWTPC 6800 and Percom Floppy Controller
I?m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy controller.
This controller goes on the SS-50 bus instead of the SS-30 bus where the SWTPC
controllers installed. The standard Percom MiniDOS PROM is installed, and the
other two PROM sockets have a third party extension called ?Minidisk+?. This
was made by a company called Cer-Comp. These PROMs are instead of Percom?s own
?MiniDOS PlusX (MPX) PROM.
I?ve got the system working, and I can use Minidisk+ to save and load files,
but I know I?m missing some nuances of command parameters. I don?t have any
sort of documentation for Minidisk+, so before I go figure it out by
disassembling the PROMs, does anyone have any sort of documentation for
Minidisk+ by Cer-Comp for the Percom LFD-400 floppy disk controller?
Also, I?d like to burn the MPX PROM as an option. Does anyone have the MPX PROM
or the source code for MiniDOS PlusX?
Mike
