You might post this on the forum in the pncconf section, it does sound like a little bug with pncconf.
Is this a 5i25/7i76 combo? You might just try a plain config that is known to work... http://gnipsel.com/linuxcnc/configs/index.html JT On 10/2/2013 12:26 PM, Russell Brown wrote: > Quoth Peter C. Wallace..... >> On Wed, 2 Oct 2013, Russell Brown wrote: >> >>> It's a stepper based system using a Mesa 5I25 and the standard >>> BASE_PERIOD of 50us which should allow 20,000 steps per second >>> (according to TFM). >> There should be no base thread at all with hardware stepgens >> (it will make things worse and may even be the cause of the following error) > The original config from pncconf didn't have the BASE_PERIOD in the .ini > file. I did put one in during my flailing around but I've just taken it > out and there's no difference. > > However, it looks like my .hal file (pncconf generated) doesn't use it > anyway:- > > Mesa_Mill.hal:loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD > num_joints=[TRAJ]AXES > > and talking of the .hal file, the only thing that's changed from the > pncconf generated version is AFAIR that I had to comment out the > following two lines: > > loadrt abs names= > loadrt lowpass names= > > as linuxcnc won't start with them in the file. > > >> One thing that is required is that the per axis stepgen maxaccel parameter be >> set to about 20% greater than the machine maxaccel for that axis. > I did have it set to double (700). Just tried 420 (350 * 1.2). No > difference :-( > > > FWIW, I've stuck my .ini and .hal files here: > > http://ruffle.me.uk/cnc/Mesa_Mill.ini > http://ruffle.me.uk/cnc/Mesa_Mill.hal > > if anyone's kind enough to have a quick gander and tell me what stupid > mistake I've made I'd be very grateful. > ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
