[Tinyos-help] Quadrature encoder

[Tom Apker]

Good day eveyone,

    I've just started working on a quadrature encoder program for a mica2
mote, and I'm having some trouble figuring out how to access the individual
external pins.  It looks like I should be using the Get interface to get the
value of (I think) Port A pins 4&5, which I will sample at a fairly high
rate using one of the timers.

    Two questions:

    (1) How do I wire the external pins so that I can sample them with a Get
(or similar) command? (example code would be helpful here)

    (2) Is it possible to make this more general than just the mica2, or
even atm chips?  I figure I won't be the last guy to do this, so I'd rather
do it right the first time.

Many thanks,

-tba
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