2009/9/25 Eric H. Johnson <ejohn...@camalytics.com>:

> What filter component are you using? To debounce inputs such as limit
> switches you should be using (not so surprisingly) the "debounce" component.
> This component allows you to define groups of inputs to be debounced. All of
> the inputs in the same group will have the same interval.

I am using debounce, but I couldn't get more than one group to work. I
probably gave up too soon.

> Encoder signals are a different animal, especially if you need to count
> pulses at a rate fairly close to the period of the base thread. In that case
> it does not leave much margin for filtering. If your encoder supplies the
> not signals, i.e. A, ~A, B, ~B, etc. the not signal can be used to filter
> out noise. It will require another input however, or even up to three if you
> need ~A, ~B and ~I.

An interesting idea, but as I only have A and I (no B) due to running
out of p-port lines I won't be able to do that with the current
hardware. I am beginning to see a 7i43 in my future.

-- 
atp

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