[GreenKeys] Teletype 32-ASR

[Cory Heisterkamp]

"What does the interface do about the non ITA#2
characters when it receives them?"

You'd be surprised how tolerant teletype art is! LOL.


On Tue, Jun 11, 2013 at 2:58 PM, tony.podrasky <tony.podrasky at gmail.com>wrote:

> What does the interface do about the non ITA#2
> characters when it receives them?
>
> UE,
> W6ESE - tony
> NNNN
> ZCZC
>
>
> On 06/11/2013 12:50 PM, Trammell Hudson wrote:
>
>> On Jun 11 2013 1:32 PM, tony.podrasky wrote:
>>
>>> [...]
>>> I don't think the machine is worth much: guys want an
>>> 8-level (ASCII) machine that they can connect to an
>>> old computer - like an IMSAI (sp?) - and have a retrograde
>>> setup.
>>>
>>> To make matters worse, if it runs at 66 Words Per Minute,
>>> it's even more oddball because normal Teletype service is
>>> usually 60 WPM.
>>>
>>
>> The interface board and firmware that I've designed for the ASR33 and
>> Model 15 could be used for this sort of odd interface to connect it to
>> modern hardware.  All of the current loop driving, weird baud rate
>> generation and ASCII to code mapping is handled in the AVR firmware so
>> that it shows up as a normal USB serial port to the computer.  So if
>> you're planning on connecting it to a Pi or SimH virtual machine instead
>> of an RTTY receiver or something like a real Altair, this might be a way
>> to make use of an oddball device like this one.
>>
>> I recently posted a short write up on the Model 15 part of the
>> interface: http://www.nycresistor.com/**2013/06/06/usb-teletype/<http://www.nycresistor.com/2013/06/06/usb-teletype/>
>>
>>
> --
> Tony J. Podrasky | "My  dog  is worried about the economy
>                  |  because Alpo is up to 99-cents a can.
>                  |  -That's almost  $7.00  in dog money!"
>                  |                         -Joe Weinstein
>
> _____________________________________________
>
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