[Coco] FW: Multi-Processor 6809 Computer System

[L. Curtis Boyle]

I believe Mark Marlette has a copy of the schematics (and he made some corrections). If I still have my copy, I have no idea where they are at the moment. 

Sent from my iPhone

On 2013-04-30, at 9:20 PM, "Kip Koon" <computerdoc at sc.rr.com> wrote:

> 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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