On 2 August 2010 17:41, Jon Elson <[email protected]> wrote:

> I don't know if the above code will work for other reasons.  It sets the
> PWM output VERY rapidly to the two polarity outputs.  My code waits a
> full servo cycle before flipping to the other direction.  That much time
> isn't needed, but you need to make sure at least one 5% wide pulse gets
> to the amp before you reverse it.  Anyway, the above scheme would only
> do this during program startup, not every time you come out of E-stop.

In that case it might be a function best handled by a custom HAL
component. Basically a pass-through of the PWM request and an
edge-detector and state machine that watch the amp-enable line.
Only a dozen lines of comp script, I would guess.

-- 
atp

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