Spindle index enable

I am trying to get spindle index working but still no luck. Everything else is working fine, I can read the spindle speed, but spindle position does not reset to zero when the spindle index is reached. I thing the problem is somewhere around the signal motion.spindle-index-enable. I am not able to get this signal to logical one, it's value is still zero. I tried to disconnect signals and set it 1, it worked well, the spindle position was reset by first index impulse, but motion.spindle-index-enable fell to zero and did not get up. The change of polarity of input pins did not solve anything.

Here is the encoder setting:
# spindle ENCODER
loadrt encoder num_chan=1
addf encoder.update-counters base-thread
addf encoder.capture-position servo-thread
setp encoder.0.position-scale 360 #90 SPR, 360PPR
setp encoder.0.x4-mode true
net spindle-position encoder.0.position => motion.spindle-revs
net spindle-velocity encoder.0.velocity => motion.spindle-speed-in
net spindle-index-enable encoder.0.index-enable <=> motion.spindle-index-enable

net spindle-phase-a encoder.0.phase-A <= parport.0.pin-11-in-not
net spindle-phase-b encoder.0.phase-B <= parport.0.pin-12-in-not
net spindle-index encoder.0.phase-Z <= parport.0.pin-13-in-not
net spindle-cmd <= motion.spindle-speed-out

Hi

Are you saying that G76 does not work, or just that in testing, the counter is not behaving as you expected?

I can't see anything wrong with your hal file, it is essentially the same as my lathe but with a quadrature encoder
See this post for jmelson's explanation of when the counter is reset (post 19208)

www.linuxcnc.org/index.php/english/forum...oder-issues?start=12

regards

Hi,
as you said, the counter was not behaving as I expected, so I didn't even try the threading till your answer. Now, everything is working fine.
Thank you very much