Greetings all;

1. On the raspi, it appears that adding "isolcpus=3" to the end 
of /boot/cmdline.txt works, nothing uses cpu3 until I run lcnc, then it 
shows up as about a 15% load on cpu3 in the htop display. You can't see 
that with htop on an X86 box.  I like that, confirming that lcnc does 
indeed have a core to itself.

I appear to have a large noise source that isn't quite synchronized with 
the spi bus. I disabled the estop_latch.0 functions so the a watchdog 
bite didn't disable lcnc. So I could still troubleshoot.

Then I setup the halscope and went looking for noise, and found tons of 
it in the encoder-velocity output, it looked like it was hitting C speed 
instantly, and then stopping just as fast, in both directions. The 
spindle is motionless, something has gone sour in the control interface. 
The SpinX1 is sending the correct signals, but its not responding. 

But then I went to restore the estop_latch function and ran into this?
line 41 in .hal file    loadrt  estop_latch count=1

That should work, right?
line 53 addf estop_latch.0 servo-thread

Yep, sure...

#>linuxcnc -l
[...]
hm2/hm2_7i90.0: registered
HAL: ERROR: function 'estop_latch.0' not found
./hm2-7i90-stepper.hal:53: addf failed
Shutting down and cleaning up LinuxCNC...

WTH?

Running out of hair here.

Thanks everybody.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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