cs202101@umbc5.umbc.edu (12/05/90)
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). 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. Robert Douglas Davis # Is reality real? Can you prove it? cs202101@umbc5.umbc.edu # Can you write an algorythm to prove it? Home: +1-301-744-7964 # Do you have a computer fast enough to compute it? BBS: +1-301-788-6663 # ---> REAL Education: The Benny Hill Show!
donm@pnet07.cts.com (Don Maslin) (12/06/90)
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 Keeper of the CP/M System Disk | UUCP: {nosc ucsd crash ncr-sd}!pnet07!donm Archives for the Dino(saur)SIG | ARPA: simasd!pnet07!donm@nosc.mil - San Diego Computer Society - | INET: donm@pnet07.cts.com
ianj@ijpc.UUCP (Ian Justman) (12/07/90)
donm@pnet07.cts.com (Don Maslin) writes: > cs202101@umbc5.umbc.edu writes: > >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. I wrote a number of overlays for a few other comm programs for the Dynabyte, like ZMP (my personal favorite) and Qterm and UUCP (these two I am a beta tester for and I run a UUCP site with it, namely ijsys (reachable via ...!ames!pacbell!sactoh0!ijsys!ianj)), and will continue to write. I'm debating whether I ought to write one for IMP, and I've been thinking of overhauling the MEX overlay because it doesn't support anything over 1200 baud. > >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. He may need an .LBR extractor, or it might be better to send the source (if any) straight to him because I don't think he has a LBR extractor for his Dynabyte. Or better yet, if he has a DOS box (or access to one), send him one for DOS. I've also talked to the guy. He doesn't have all that much for it except what he already has.