[GreenKeys] TTY to Ethernet Converter or TTYoIP

[epvgk at limpoc.com]

On Wed, Aug 03, 2011 at 10:32:42PM -0700, Keelan Lightfoot wrote:
> Eugene,
> 
> That is part of the intention of this box. Imagine that you plug one end of this box into your teletype, and the other end into an ethernet switch. When you power it up, a dialogue like this takes place between you and your teletype:
> 

Keelan, 

This sounds like a fun project. Is this a bare (arm?) dev board type of thing
or is there some software layer provided on top of it to help with network
stuff, or what? 

Sorta relatedly, are you assuming separate TX and RX loops, or are you handling
the simplex-ness of the loop in software, ie, the fact that you receive back
everything you send except when someone else on the loop is sending, etc.? 
I had a bit of fun writing "echo cancel" code for an IRC-like client I wrote
to work with heavymetal... 

Oh, amusingly, I have a software-only version of the RTTY demodulator which 
runs on an AVR chip with no analog parts at all and which outputs ASCII... 
However the analog design i ended up going with decodes so much better I sort
of put the digital one aside. 

eric