Subject:
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Re: Creating multiple serial outputs with the HB expansion board
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 11 Mar 1999 04:40:08 GMT
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Original-From:
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Matt Grob <mgrob@qualcomm^spamless^.com>
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Viewed:
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1804 times
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I have considered something like that and it sure would work but I was
hoping to find a s/w based solution that didn't require changing the h/w.
I only need outputs, 2400bps, and I dont need any of the more functional
aspects of typical serial parts (like hw flow control).
There are so many servo and motor controller gadgets in use now that I
find having several serial outputs to be desirable.
Matt
On Wed, 10 Mar 1999, K.L.McKinnon wrote:
> Have you considered (not sure about the full requirements) but designing
> a secondary expansion board with serial controllers instead of the
> expansion headers??
> Just an idea, but the Motorola version of the serial processor (6850?)
> should be a good choice.
> Would be an interesting project with a fair amount of interest.
>
> K.L. McKinnon
>
> Matt Grob wrote:
> >
> > I would like to create multiple serial outputs (like 3 or 4) using the
> > digital outputs on the handyboard expansion board. The purpose is to
> > drive an external servo controller and external motor controllers
> > (motorminds) which can handle more load than the handyboard's drive can.
> > 2400bps operation would work fine.
> >
> > Questions:
> >
> > -has anyone tried this - is there any fundamental reason why it couldnt be
> > done?
> >
> > -any code available? (some mod of the Pa7_9600 code?)
> >
> > thanks for any info,
> >
> > Matt Grob
> > QUALCOMM, Inc
>
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