[Coco] UART parallel driver. was> The most bizarre thing >>ATTNJohann

[Bill Gunshannon]

> I think it was even in one of the magazines back then, and it was used
> to drive the star serie dotmatrix printers. Was it rainbow or coconut,
> I do not know any more. But I'm sure it worked.

I doubt the one in the Rainbow article looked like that and I would
certainly not risk my computer by plugging that monstrosity into it.

bill

>
> On Thu, May 16, 2013 at 5:11 PM, Bob Devries <devries.bob at gmail.com>
> wrote:
>> Back in the day, I used the Microchip AY3-1015D, which was a parallel to
>> serial convertor and a serial to parallel convertor in one chip.
>>
>> Regards, Bob Devries
>> Dalby, QLD, Australia
>>
>> ----- Original Message ----- From: "George Ramsower" <georgera at gvtc.com>
>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>> Sent: Friday, May 17, 2013 6:17 AM
>> Subject: Re: [Coco] UART parallel driver. was> The most bizarre thing
>>>>ATTNJohann
>>
>>
>>
>>> It never occurred to me that a UART could mate to a parallel device
>>> but,
>>> as
>>> I think on this, it makes sense.
>>> Earlier, someone suggested this ckt was a serial to parallel interface
>>> and
>>> it seems he was correct.
>>>
>>> Interesting but not something I'm willing to look into, today.
>>> George
>>>
>>>  ----- Original Message -----  From: Johann Klasek
>>>
>>>  Yes, such a thing converts in both directions in an universal way,
>>> often
>>>  only signal driven (without any complex register programming, as far
>>> as
>>>  I have understand the datasheet of the AY-5-1013A). Probably not a
>>> good
>>>  idea (uncommon, not to say unstable) if the system bus would be
>>> connected
>>>  via a flat cable ...
>>>
>>>  Johann
>>>
>>> --
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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>