On 8 Dec 2008 at 22:25, Tom wrote:

> I am trying to implement a debounce filter on my limit switch inputs
> in order to
> filter out some 4 microsecond noise/glitches, visible in Halscope,
> that are
> tripping my limits while running my toolpath.
> 
>  Noise from the spindle vfd seems to be the culprit, but I was
> careful to shield
> & optoisolate the vfd control lines and bond the power grounds. 
> 
> I was able to: 
> loadrt debounce cfg="6"
This line loads debounce 6 times.

> addf debounce.0 servo-thread 1
If you need 6 copies then you need to add each one

addf debounce.0 servo thread
addf debounce.1 servo thread
...

and as Steve pointed out

setp debounce.0.delay 100
setp debounce.1.delay 100
...


> 
> I was also able to link the debounce.0.0.in & out pins to the limit
> input pins
> without error.
> 
> But how do I set the time constant so the filter will work?
> I tried the following to no avail:
> setp debounce.0.delay100 / setp debounce.0.100 / setp debounce.0
> 100
> 
> All get is an error saying that there is no such pin or parameter,
> or there must
> be 2 arguments. 
> 
> Can anyone show me some examples of how to set this parameter?
> 
> Thank you!
> Tom
> 
> 
> 
> 
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