Date : Wed, 05 Dec 1990 19:45:05 GMT
From : usc!wuarchive!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!emory!hubcap!ncrcae!ncr-sd!simasd!simasd!pnet07!donm@apple.com (Don Maslin)
Subject: Dynabyte CP/M system - HELP!
cs202101@umbc5.umbc.edu writes:
>
>Recently I acquired a CP/M system made by a company called Dynabyte,
>this system is a Dynabyte model 5200; unfortunately, instead of using
>standard format 8" disks, it uses 5-1/4" floppies which appear to use a
>format which is incompatible with that of any other CP/M systems that I
>know of. In addition, to make matters more difficult, there were no
>communications, or file transfer, programs on any of the diskettes which
>came with the system. I was going to attempt writing a com program for it,
>but it appears to have a non-standard UART (I'm guessing that this chip
>is the UART, since there are two of these chips on the CPU card and they
>appear to be connected to the serial port connectors); the chips in question
>have TMS 5550 marked on them (if I recall correctly from when I had the
>CPU card removed from the system).
There is an overlay for NightOwl Softwares MEX communication software for the
Dynabyte DB 8/1. The overlay is designated MXO-DB10.ASM, and should be on
many BBS that handle CP/M stuff along with the PD MEX114.LBR package. If the
overlay is not directly applicable, it should at least be similar.
>
>Is there anyone out there who is familiar with this system, its UARTS,
>or who has any ideas about how to get a communications and file transfer
>program set up and running on this system? Thanks in advance for any
>information.
>
If it would be useful, I can send you a uuencoded package called BOOTSTRP.LBR
which contains a couple of approaches to overcoming the initial 'no-comm'
hurdle.
- don
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