On Thursday 30 August 2018 19:29:31 Phillip Carter wrote: > On 31/8/18 8:07 am, Gene Heskett wrote: > > On Thursday 30 August 2018 16:23:05 Gene Heskett wrote: > >> On Thursday 30 August 2018 15:52:26 andy pugh wrote: > >>> On Thu, 30 Aug 2018 at 20:27, Gene Heskett <ghesk...@shentel.net> > >> > >> wrote: > >>>> net bedwear5 <= offset.0.fb-out => joint.0.pos-fb > >>>> X-axis-track.in > >>>> > >>>> LinuxCNC -l fired up from a terminal, and this is logged as it > >>>> quits: ./hm2-7i90-stepper.hal:262: Signal 'bedwear5' can not add > >>>> OUT pin 'joint.0.pos-fb', it already has OUT pin > >>>> 'offset.0.fb-out' > >>>> > >>>> But a search of the whole 700+ LOC can't find it. > >>>> oldtimers must be setting in, I can't see the error either. Sob. > >>> > >>> It's on line 262, and that is probably right above, in your post. > >>> > >>> But what I don't understand is why it is saying that > >>> joint.0.pos-fb is an OUT pin, as as far as I can tell no such pin > >>> exists. http://linuxcnc.org/docs/devel/html/man/man9/motion.9.html > >>> There _is_ an OUT pin that reports the position feedback with > >>> motor offsets removed: joint.N.joint−pos−fb OUT FLOAT > >>> > >>> Your HAL, though, needs to have: > >>> > >>> net bedwear2 <= joint.0.motor-pos-cmd => > >>> offset.0.in # cmd from motion > >>> #this is corrected command to x axis > >>> net bedwear3 <= offset.0.out => > >>> hm2_[HOSTMOT2](BOARD).0.stepgen.03.position-cmd > >>> # thats command, now fix the offset feedback back to motion > >>> net bedwear4 <= > >>> hm2_[HOSTMOT2](BOARD).0.stepgen.03.position-fb => offset.0.fb-in > >>> net bedwear5 <= offset.0.fb-out => > >>> joint.0.motor-pos-fb X-axis-track.in > >> > >> So the missing word was "motor". Fixing thar led to a duplicate > >> error, elsewhere in the file, and fixing that makes it run. But > >> now I've a couple chops in the skillet and the rest of dinner laid > >> out for the microwave, so it will be after dinner before I get a > >> chance to check it. > >> > >> One thing is bothering me about the halmeter readings from > >> lincurve.0.out though they look as if they've been subjected to a > >> large multipier, 1000 x or so and the max programmed is .x-val-01 > >> is 0.0065", mainly to test the polarity of the corrections. > > > > After getting us outside of dinner... > > > > Next chapter; following Z motion for lincurve.0.in. > > halcode: > > # lincurve needs an input > > net bedwear0 <= hm2_[HOSTMOT2]BOARD).0.stepgen.03.position-fb => > > joint.1.motor-pos-fb # send the corrected fb to lincurve.0.in > > net bedwear1 <= joint.1.joint-pos-fb => lincurve.0.in # > > is supposed to be Z position > > > > From man motion: I finally printed me a copy for at the machine > > reference > > > > joint.N.joint−pos−fb OUT FLOAT > > The joint feedback position. This value is computed from the actual > > motor position minus joint offsets. Useful for machine > > visualization > > > > joint.1.joint-pos-fb does not exist according to linuxcnc. > > My 'Show HAL Configuration' (from AXIS) shows joint.N.pos-fb yet the > documentation (man motion) shows joint.N.joint-pos-fb. > The same for pos-cmd...
Aha, I wondered about that wording in the man page, so the man page needs edited. I'll fix that here tomorrow, the man page error is up to whomever does that since I don't have rights to edit that stuffs. My chances of actually making it work look better! > > linuxcnc -l > > [...] > > ./hm2/hm2_7i90.0: registered > > ./hm2-7i90-stepper.hal:255: Pin 'joint.1.joint-pos-fb' does not > > exist > > > > The above is from terminal screen > > > > Next? I'd rerun it and look for it with a halmeter, but of course it > > won't run. > > Thank you, Phillip Carter. -- 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> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
