On Tuesday 28 February 2017 12:22:29 andy pugh wrote: > On 28 February 2017 at 16:53, Gene Heskett <ghesk...@shentel.net> wrote: > > Why? > > Because motion creates threads called servo-thread and base-thread, > and that is hard-coded.
The docs do NOT claim that. > https://github.com/LinuxCNC/linuxcnc/blob/87d2a4e1f28427568a69abcab101 >dec63d24bca3/src/emc/motion/motion.c#L816 > > Why are you trying to jog in a separate thread to the servo thread? I see no good reason to recalculate the jog gain or loss every thousandth of a second, Andy, 1/100th second is plenty fast enough, given the rate at which it can be changed by turning the dial. But 5 to 7 clicks will be the full range for this adjustment. The pi has limited resources, so why bother it with all this stuff any faster than 1/100th second. None of this applies when the button beside the dial is not pushed, so its wasted cpu cycles, magnitudes of them, if it has to repeat the calculations every millisecond. I don't think I can move the BASE_PERIOD time to 1 millisecond, because many of those modules do have fp requirements which LCNC would no doutb object to, taking the exit cleanup path. So I guess this then is a feature request. The docs even name TRAJ_PERIOD, see page 621 of the pdf. Can it not be made to work at all? Thanks Andy. 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
