[Coco] Simple, reliable routines for the bitbanger serial port?

[Mike Pepe]

John,

Just for completeness sake- I'm not aware of interrupt driven bitbanger
stuff. I suppose it's possible on a CoCo3 using the timer interrupt, but
due to the variable latency involved in servicing interrupts I think it
would be a pretty poor method to drive the bitbanger. 


-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
On Behalf Of John W. Linville
Sent: Sunday, March 15, 2009 7:34 PM
To: coco at maltedmedia.com
Subject: [Coco] Simple, reliable routines for the bitbanger serial port?

Anyone have a set of simple (and tested) routines to do
one-character-at-a-time transfers through the CoCo's bitbanger port?
I don't need high performance, although 9600bps might be nice.
I'd prefer routines that only used hard-coded timing loops (i.e. not
interrupts) just for simplicity sake, but any working code is welcome.

Can anyone help?

Thanks!

John
-- 
John W. Linville		Someday the world will need a hero, and
you
linville at tuxdriver.com			might be all we have.  Be ready.

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