[GreenKeys] Text to Baudot

Fri May 12 21:47:25 EDT 2017

Jordan, All who might have interest..

The software / hardware offer is open to anyone who might be interested in
trying it. Like I said, all the 'hard' work is done, it's pretty much a
turn-key operation at this point to get it working (assuming you have
rs-232 to 60ma loop conv.). I built one of the Aetheric converters, and
while I've always used it with my rs-232 level converter, it seems that it
should work just fine off the 'bare' CBM TTL-level port. Either way, it's
good to have the TTL / 232 converter, as it opens up other possibilities.

There are two ways to do the proper 232 port on the CBM: 1) Use a complete
module (under $5) and build it right into the computer case -or- 2) Use a
MAX232 chip (under $1) and build a converter out of an old VIC-1600 300
baud modem. You literally strip everything off the modem board, and only
use the board itself and the port connector as a platform to build the
circuit. I went the latter route, as I didn't know the complete modules
were so cheap & easy!

As for the software, well, LOAD and RUN it.. that's it. Also feel free to
strip out the ASC2BAUD and BAUD2ASC routines for your own projects, or just
use them as guides. That said, I'm +sure+ they could be improved, shrunk,
sped up, etc. I only did the ASM version to see if I could (I needed to
finally learn some ASM), it offers no advantages other than being somewhat
smaller and faster - though the speed is of no issue at 45.45 baud! Oh, and
the ASM uses a very neat 'typewriter' custom char. set built by a fellow
named Rudi.

Just send me an off-list mail and I'll forward you the software. If you
want 232 modules or chips, I have +plenty+ more than I will +ever+ use! So
just ask, they are dirt-cheap.. and I'd like to see them used.

On Fri, May 12, 2017 at 12:52 PM, Jordan Spencer Cunningham <js at cunni.co>
wrote:

> I have nine C64s here in my basement, most of them working in some
> fashion. One of the many projects I have on my plate is to frankenstein
> them all to a few 100% working, physically complete C64s. While I've also
> been interested in building a text to Baudot interface (and vice versa--
> I'm also working on joining the i-Telex network), mine has been focused on
> interfacing with modern technology for the purpose of wider capabilities.
> That being said, I'd be extremely interested to get more information on
> your software and wiring a C64 up to a current loop. I have the military
> labeled M15 and M19; getting them talking to one of my Commodores would
> perhaps be among the chief accomplishments in my life.
>
> --Jordan
>
> On Fri, May 12, 2017 at 4:42 AM, drlegendre . <drlegendre at gmail.com>
> wrote:
>
>> 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
>>>>>
>>>>>
>>>>> ---
>>>>> This email has been checked for viruses by AVG.
>>>>> http://www.avg.com
>>>>>
>>>>>
>>>>> ______________________________________________________________
>>>>> GreenKeys mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:GreenKeys at mailman.qth.net
>>>>>
>>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/piperma
>>>>> il/greenkeys/
>>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive
>>>>> /greenkeys/greenkeys.html
>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>>> http://comcents.com/tty/greenkeyssearch.html
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>
>>>>
>>>> ______________________________________________________________
>>>> GreenKeys mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:GreenKeys at mailman.qth.net
>>>>
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/piperma
>>>> il/greenkeys/
>>>> 1998-to-2001 <http://mailman.qth.net/pipermail/greenkeys/1998-to-2001>
>>>> greenkeys archive: http://mailman.qth.net/archive
>>>> /greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>>> http://comcents.com/tty/greenkeyssearch.html
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>>
>>>
>>
>> ______________________________________________________________
>> GreenKeys mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:GreenKeys at mailman.qth.net
>>
>> 2002-to-present greenkeys archive: http://mailman.qth.net/piperma
>> il/greenkeys/
>> 1998-to-2001 <http://mailman.qth.net/pipermail/greenkeys/1998-to-2001>
>> greenkeys archive: http://mailman.qth.net/archive
>> /greenkeys/greenkeys.html
>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>> http://comcents.com/tty/greenkeyssearch.html
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20170512/40d5b91d/attachment.html>