[Coco] FW: Multi-Processor 6809 Computer System

[Bill Gunshannon]

> Bill,
> Is there a list or collection of Dual 6809 and Multi 6809 computer systems
> on the internet anywhere.  I sure would like to see them!

None that I know of.  Contrary to populsr belief the INTERNET is
not the greatest library ever known.  The stuff I have mentioned
are either boxes I worked with many moons ago or stuff I have ads
for in my (massive) collection of old computer magazines.

bill

> I am so glad there is so much interest in this subject!
> Kip
>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
> On
> Behalf Of Bill Gunshannon
> Sent: Tuesday, April 30, 2013 11:52 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] FW: Multi-Processor 6809 Computer System
>
>
>> 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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>>> Coco at maltedmedia.com
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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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-- 
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>