*Bonjour Philippe, comment vas tu? *

2009/5/25 PPA philippe.paternotte@pmpcomp.fr

>
>
> > I agree on this. My experiments on IOC for a few RC products were really
> > disappointing.
> >
> You too? :-)
> Is there any real application for these damned functions???
>

As someone said already, I think these are designed (and tested) more for
waking up device upon single external events such as a button press or
signal change, but not for continuous change detection IMHO.


>
> As I said to Steve, this is not so simple nowadays...
>

I know there is no standard for RC PPM in timing nowadays, thus what I do is
detect timing for a few frames first and then use this as a parametrized
state machine. It works reasonably well depending on how much processing you
have to do in between pulses. There is no one answer for all applications of
course.

Note if you find a system repeating pulses every 5 or 10ms, that is just to
drive an "analog" servo closer to that of a "digital" servo performance. You
can safely ignore repeated pulses, no real need to process them all. An
analog servo circuitry will benefit from more frequent pulses, but a digital
logic can ignore that.
HTH

-- 
Ariel Rocholl
Madrid, Spain
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