[GreenKeys] Support for serial ports

[Chris Elmquist]

On Wednesday (06/15/2011 at 04:03PM -0700), epvgk at limpoc.com wrote:
> On Wed, Jun 15, 2011 at 05:48:19PM -0500, Jim Haynes wrote:
> > Well thanks for the input from all of you.  I've been wanting to get
> > my feet wet with microcontrollers for some TTY applications, but had
> > not yet even got so far as finding out which ones have suitable
> > serial ports.
> 
> I can confirm that at the very least both ARM (LPC at least) and 8 bit AVR
> are perfectly happy at 45.45 baud, 5 bits, 2 stop bits. (won't do 1.42, but
> 2 works fine)

Indeed.

In my case, the ATTiny2313 has only one "real" UART and so I did the 
low speed side with a software (so-called bit-banged) UART.  You can
then do pretty much any framing you wish with timers and delay loops.

Chris

-- 
Chris Elmquist