Super-PID spindle speed feedback

Hi Andy,

I'm so lost.

I thought I had in the custom hal. I'll stare and keep reading, but I'm a horrible programmer, better at the physical electronics.

When I look at the spindle PWM signal, it seems to be jumping as well. I can hear it as the router misses ever so often as well. I'm pretty sure I have a good system for Linuxcnc as my jitter is only 16000.

Dale

Well, I discovered the reason my spindle speed in jitters.
Turns out that my BOB input pin was set to 5V pull-up. When I set it to a pulled-down pin, all is steady.
I never got the filters working, but I suspect now that is was that I had only a single Scale component defined?

In anycase, because the signal is very stable without filtering now, I simply removed all the relevent code, and now the meter and spindle-at-speed functions seem to be working rock-steady!

Thanks for everyones input. I do appreceate your help!

Cheers!