Hello Dave

If you have a copy of the Embeded Controls Hanbook they show a few
examples on interfacing to keypads and at least one example on
simulating the mouse protocol with a pic.  It should be fairly simple to
combine these things into a working model of what you want to do.
Contact me if you would like me to look up the specific app notes for
you.

Charles


>
>Dave Brobst <dave@SOLUTIONS-CUBED.COM> asked:
>
>>Does anybody have information regarding the interface of touchpads. .
. or
>>pointers to where such information may reside?
>>
>>I am looking for information concerning both the physical sensing of
the
>>touchpad itself as well as the interface between the touchpad and the
>>computer (is it really just the MS Mouse communication protocol?).


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