You might try asking on the Flex Users "fufu" list. I have a working MiniDOS PlusX LFD-400 setup. I would be happy to trade dumps if you are interested.
Bill S. -----Original Message----- From: cctalk [mailto:[email protected]] On Behalf Of Mike Douglas via cctalk Sent: Tuesday, January 07, 2020 7:45 PM To: [email protected] 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
