[Coco] FW: Multi-Processor 6809 Computer System

[Kip Koon]

Curtis,
Are there any schematics and documentation on the TC-9 and TC-70 available?
Any test code floating around?
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of L. Curtis Boyle
Sent: Tuesday, April 30, 2013 11:56 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] FW: Multi-Processor 6809 Computer System

This was the original design goal of the TC-9/TC-70 combo from FHL, as well,
although I don't think more than rudimentary test code was every completed
(Bill Nobel and I, who did the 2nd version of the TC-9 OS-9/NitrOS-9
drivers) never had a K-BUS or TC-70 card, so we never got involved with it).

L. Curtis Boyle
curtisboyle at sasktel.net



On Apr 30, 2013, at 9:51 AM, Bill Gunshannon wrote:

> 
>> The Fujitsu FM-7 computer uses 2 6809 being on of them for generating 
>> graphics. There is no vdp on this computer, the second 6809 is used 
>> exclusively for generating 8 color 640x200 pixels graphics.
>> 
>> Some dual 6809 arcades do the same.
> 
> Systems with more than one processor were more common than you might 
> think, but in most cases it was not any kind of multi-processing.  The 
> second processor was used exclusively for IO.  The Tandy Model 16 had 
> an entire Z80 compouter system (the Model II) built into it for such a 
> task.  When using the M68K the Z80 was an IO processor and all IO went 
> thru it.  There were others, (Midwest Scientific was one, I thinkh 
> dual 6800's).
> 
> bill
> 
>> 
>> 
>> On Sun, Apr 28, 2013 at 10:42 PM, Mark McDougall
>> <msmcdoug at iinet.net.au>wrote:
>> 
>>> FWIW there were a couple of arcade boards that used dual 6809's for 
>>> which there are schematics available... Time Pilot 84 is one 
>>> example. There was a master-slave relationship between them - might 
>>> be of interest to some to check out the schematics!?!
>>> 
>>> 
>>> On 29/04/2013 12:26 PM, Mark McDougall wrote:
>>>> 2 minutes on Google...
>>>> 
>>>> <http://etd.ohiolink.edu/view.cgi?acc_num=ohiou1183654502>
>>>> 
>>>> 
>>>> On 29/04/2013 12:12 PM, Lothan wrote:
>>>>> HARDWARE DESIGN OF A MULTIPROCESSOR SYSTEM WITH FIVE MOTOROLA 
>>>>> MC6809E MICROPROCESSORS
>>>> 
>>> 
>>> --
>>> |              Mark McDougall                | "Electrical Engineers do
>>> it
>>> |  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"
>>> 
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>> 
>> 
>> 
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> 
> -- 
> Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
> billg999 at cs.scranton.edu |  and a sheep voting on what's for dinner.
> University of Scranton   |
> Scranton, Pennsylvania   |         #include <std.disclaimer.h>
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