OSI boards

Klyball
Posts: 232
Joined: Tue Dec 09, 2014 12:53 am

OSI boards

Post by Klyball »

It seems to be a bit quit around here, so i thought i would post a couple things i have been up to..

555 replica- 2 printer ports 4 serial ports 1 network node and 8k ram D000 and E000 .
555a.jpg
555a.jpg (310.9 KiB) Viewed 15845 times
470K hot rodded 470 with up to 64k ram or rom ,Data separator and ide sockets.

These will be going in my custom 510 build along with a 570b rtc board
470Ka.jpg
470Ka.jpg (328.15 KiB) Viewed 15841 times
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598
MK14HAK
Posts: 356
Joined: Wed Mar 16, 2011 1:49 am
Location: New Zealand

Re: OSI boards

Post by MK14HAK »

Grant, whats the capability of the 470HR ?
Double sided dual drive support, motor control etc ??
Maybe a separate topic for each board please ...
600RevB:16K,2MHz,64x32,470,CEGMON
SuperKit:502,540B,542B,CEGMON, 8" and 5" FDDs
Cards:PE IO,6522 D-A-D, AY3-8910,ProgramGraphics,Color,UK101
WIP:HexDOS,FDD Emulator
Klyball
Posts: 232
Joined: Tue Dec 09, 2014 12:53 am

Re: OSI boards

Post by Klyball »

HI Mike

Dual sided dual drives jumper configurable, Motor control was planned but i mixed up my files and made the wrong one , i have a little daughter board that plugs into the open socket no cut's and 4 jumpers top or bottom. but for the amount of time these systems would be running i don't think the motor control is a much of a problem.All original circuits are maintained from the 470 except i used 74ls242 instead of 8t26 , but they seem harder to find then the 26's go figure :x
The only other problem with this board is it's missing the inverter on the select drive 2 line but easy fix,1 cut, 2 jumpers other than that its working rock solid
i have 1- 8 inch drive and 1- 3.5 drive hooked up so i can make 3.5 copies From the 8 inch.

I need to organize and name my files better :D all in all not bad for Ver 1.00
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598
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glitch
Posts: 176
Joined: Mon Nov 28, 2011 12:43 am

Re: OSI boards

Post by glitch »

Any chance on an OSI prototyping board? I've been thinking about laying one out close to the original. Should be cheap to have a few made, since they're single-sided no soldermask/silkscreen.
Check out The Glitch Works
OSI Challenger 3, 510 CPU, 8" floppies, 23 MB hard disk system starting to work!
Parts bin Challenger 3 board set, never had a chassis in its time
Klyball
Posts: 232
Joined: Tue Dec 09, 2014 12:53 am

Re: OSI boards

Post by Klyball »

I was looking at possibly a 575 but had done a little already on the 595. The problem with these boards is not so much mask or silk screen but the size . they are just big boards.

Grant
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598
Steve Gray
Posts: 325
Joined: Mon Oct 06, 2008 1:54 pm
Location: Markham, Ontario, Canada
Contact:

Re: OSI boards

Post by Steve Gray »

My dream would be for a new all-in-one board. Something with CPU, 64 RAM, ROM, Serial Port, and Floppy Disk controller (with data separator and standard floppy drive connector. It should have an option to enable or disable BASIC. That plus a 540B video board would make a complete C4P-MF system, which to me would be the ultimate OSI system. It would be nice if the 540B board could be cloned (or improved by populating all 8-bits of video memory for extra colours).

Steve
C4P working, C1P working. 600D Replica working, C4P+D&N floppy not working. 505 board, 610 board, Mittendorf board, TOSIE hacker board need testing, PicoDOS disk untested.
Klyball
Posts: 232
Joined: Tue Dec 09, 2014 12:53 am

Re: OSI boards

Post by Klyball »

Probably should have the z-80 on there as well
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598
Steve Gray
Posts: 325
Joined: Mon Oct 06, 2008 1:54 pm
Location: Markham, Ontario, Canada
Contact:

Re: OSI boards

Post by Steve Gray »

Klyball wrote:Probably should have the z-80 on there as well
I didn't want to get too greedy. Oh what the heck.. how about a 6809 as well?! ;-)

Steve
C4P working, C1P working. 600D Replica working, C4P+D&N floppy not working. 505 board, 610 board, Mittendorf board, TOSIE hacker board need testing, PicoDOS disk untested.
BillO
Posts: 216
Joined: Tue Jul 08, 2014 4:03 pm
Location: Canada
Contact:

Re: OSI boards

Post by BillO »

Steve Gray wrote:
Klyball wrote:...how about a 6809 as well?! ;-)

Steve
I was going to say 6800, but the 6809 is better.
Box stock Superboard II Rev. B
KLyball replica 600D, replica 610 & KLyball Data Separator
OMS SBME and SBME+ memory cards
OMS Digi-Mule expansion bus
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Mark
Posts: 297
Joined: Tue Sep 16, 2008 6:04 am
Location: Madison, WI
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Re: OSI boards

Post by Mark »

I have a 555 Jungle board in my Keysytem business system. It has a network port on the back but I have no idea what to do with it.
<Oh wait, we actually have the documentation online... Chapter 12 of OS65U 1.44 manual> Ah, I see. You could connect up to 18 OSI systems. Once you start timesharing on a network you could share E: drives with other OSI workstations as well as access local drives. The controller has to pass network requests on to the next station if it does not act on it.

Interesting.... I wonder if that will ever be done again? Not enough systems left in the world...

-Mark
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