[Coco] CoCo 2 bitbanger does 57600bps!

Roger Taylor webmaster at coco3.com
Fri Mar 24 14:54:06 EST 2006


At 10:24 PM 3/23/2006, you wrote:
>On Thursday 23 March 2006 22:40, Neil Morrison wrote:
> >There are limitations on how fast it can operate in bi-directional
> > mode. Also, there is no point running a dot matrix type printer
> > faster than 1200 or 2400 baud since they just can't print that fast.
> >
> >Neil
> >
> >----- Original Message -----
> >From: "Roger Taylor" <webmaster at coco3.com>
> >
> >> One thing's for sure... all those messages over the years saying
> >> that the CoCo can really only do 1200bps over the bitbanger port
> >> needs to be squashed for good.  Even the 9600bps limitation comments
> >> are ridiculous.
> >>
> >> :)
>That depends on the coco's os.  Basic doesn't use any IRQ's, but os9
>does.  Because of that and the multitasking os9 can do, the bit banger
>is essentially worthless to os9 except for printing.  And that istr has
>a speed limit.  Reclocking an rs232 pack now, can be quite refreshing.


No no no :)  I beg to differ about OS-9 being worthless (or useless) for a 
38400 or 57600 bps bitbanger connection.

Stay tuned and see!

-- 
Roger Taylor




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