[GreenKeys] Text to Baudot

[drlegendre .]

Kevin,

The user port on the C-64 or the VIC-20 implements a simple RS-232
interface. In terms of protocol, it's fairly well compatible - but it
doesn't implement the proper +/-12V levels of true RS-232. In some cases,
this doesn't many any difference, but to have a level-correct RS-232 you
need one of the TTL to 232 adapter modules. I have several here, if you
need one - they are very cheap.

Once you have a functional serial port, it's as easy as connecting the port
to your 20/60ma current-loop adapter, and then onto the TTY. My software
will support 2-way, full duplex chat between the CBM and the M15, with full
support for special chars, bell, cr, lf etc. You can also spool text files
from the CBM to the M15, like a printer driver.

On Thu, May 11, 2017 at 8:41 AM, Kevin DeWitt <kevin.dewitt at gmail.com>
wrote:

> Now that sounds like fun.
>
> I still have the VIC-20 I bought when they first came out. A few years
> back a fellow HAM gave me his old BBS equipment (2-C64's, 2-1541 drives, an
> SX-64 portable and all the associated software) so I have no shortage of
> machines for testing. Over the winter the kids (10 and 15) expressed
> interest in programming so out came the machines and we ran through some
> BASIC stuff (pun intended).
>
> Since the teletypes have revived the old "bug" I was thinking it would be
> neat to build an interface for the one (or a few of) the old Commodores.
> Would the port be able to drive a polar relay? I bet it will take less time
> now to type in several pages of code.
>
> Kevin
>
> On Wed, May 10, 2017 at 9:25 PM, drlegendre . <drlegendre at gmail.com>
> wrote:
>
>> Not sure if it's worth mentioning, but I also wrote an (PET) ASCII <->
>> 5-line baudot program for C-64, which should also run on VIC & Pet. BASIC
>> source is available, but there's also a pure-ML version for C-64 available
>> as a binary. If you are a real C-64 nerd, I might even share the source
>> with you.. =P
>>
>> My software is designed to drive an M15 etc. from a C-64, but the ASCII /
>> baudot routines can easily be transplanted into your software. It uses a
>> simple lookup table (array), populated from DATA statements.
>>
>> On Wed, May 10, 2017 at 2:11 PM, Jeffrey D Angus <jdangus at att.net> wrote:
>>
>>> And of course, there's HAL Communications DSRTTY as well.
>>>
>>>
>>> --
>>> Jeff-1.0
>>> wa6fwi
>>> http://www.foxsmercantile.com
>>>
>>>
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