[Coco] coco serial port

[Bob Devries]

"The forgotten chip" That was it!! Thanks, Gene.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Gene Heskett" <gheskett at wdtv.com>
To: <coco at maltedmedia.com>
Sent: Thursday, November 08, 2012 11:41 AM
Subject: Re: [Coco] coco serial port


> On Wednesday 07 November 2012 20:29:28 Douglas Bell did opine:
>
>> I was visiting with a friend today about the coco and was bringing him
>> up to date on all the enchantments that have been developed over the
>> years.
>>
>> One thing led to another and then he told me about a hardware mod the
>> made to allow the coco to have a real serial port. Since I'm fairly new
>> on the seen.
>>
>> Sense the 1980's .   I'm not aware of any mods to the serial port. So im
>> throwing this out for input,  to see if anyone is interested in this
>> coming to light again
>>
>> He did tell me it was for a OS9 system. He is not a member of this news
>> letter yet but he told me to send the link to him. So he will be on the
>> scene soon.
>>
>> Any response will be forwarded to him till he joins.
>>
> There was a conversion kit that could be fairly easily applied to a
> coco/coco2 way back when.  I put one of them into a coco2 and used it for
> about 14 years talking to a Grass Valley Group 300-3a/b production
> television switcher at WDTV-tv.  For what I asked it to do, it Just
> Worked(TM).  And did the main job 4x faster than Grasses own $20,000 kit
> accessory, and gave the tech directors file names instead of code numbers
> the $20k kit gave.
>
> The article is in The Rainbow, search the archive index for "The Forgotten
> Chip" article.
>
> AFAIK, no one ever actually made a commercial kit and sold it based on 
> that
> (someone should have), but it sure was just what the Dr. ordered for me as
> it allowed me to write troubleshooting routines in Basic09 that could 
> reach
> into that complex beast and exercise the troublesome portion of the 
> circuit
> until I could determine the exact chip I needed to replace.  It took time
> to write that software of course, but in the overall scheme of things it
> sped me up quite a bit.
>
>> Douglas Bell
>>
>> www.papermoneyworld.net
>
>
> Cheers Douglas, Gene
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>
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