[GreenKeys] C-64 to drive Mdl. 15 TTY (and probably others..)

[Jeffrey D Angus]

On 9/3/2015 10:22 PM, drlegendre . wrote:
> This should create a port running 5N2 @ 45.45 (5 data bits, no parity,
> 2 stop bits at 45.45 baud). The "GET#" command is required to initialize
> the port - do NOT omit, or everything will go screwy. 
It does, but you have to remember to do the code conversion.
The top 5 bits in ASCII are NOT the same as the 5 bits required in Baudot.
And of course, the housekeeping. I.e. Remembering the state of being in
LTRS or FIGS etc. And convenience things like end of line counter and
translating "Enter" to send CR CR LF LTRS. Or adding a LF on receive if it
doesn't see one immediately before or after a CR. Better to throw away
a valid character than miss a line feed.

And as long as you have the programming to play with, adding features
like normal/reverse. Or a canned message stack.






-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com