On Thursday 04 May 2017 16:25:00 Charles Steinkuehler wrote: > On 5/4/2017 11:44 AM, Gene Heskett wrote: > > On Thursday 04 May 2017 10:34:15 Przemek Klosowski wrote: > >> Just to further confuse the matters, here's another ARM board: it's > >> a BeagleBone version specially designed for robotics/machine > >> control: > >> > >> http://makezine.com/product-review/beaglebone-blue/?utm_source=face > >>boo > >> k&utm_medium=social&utm_campaign=digikey&utm_term=boards%20guide&ut > >>m_co ntent=beaglebone%20blue > > > > If I was starting from scratch, maybe. But I've now 6 months > > invested in the pi, and I've written a heck of a lot of code. > > Out of curiosity, are you building from source or is there a package > repo for LinuxCNC on the RPi? > Charles;
Its actually running the 2.8pre x86 code, for master-sim, straight out of the buildbot at <http://buildbot.linuxcnc.org jessie master-sim>. Sim in this case only seems to mean its not running any cpu burning PID modules. And doesn't appear to suffer because of the lack of PID's on a stepper system. With servo's I'd expect to need the PID's. Other than that, the ini, hal, xml and assorted txt files should be able to run on an x86 box if I mailed them to you. Correcting the i/o wiring, or the hal bits that assign a signal to such and such a pin to match up with what you've got built already would be the major reason to edit the hal files. > I have someone interested in using a RPi+Mesa instead of a BBB for a > small machine control. We're not actively building Machinekit > packages for Raspbian, and I noticed the LCNC hostmot2 driver has a > RPi SPI driver. Is that what you're using? yes, hm2-rpspi.ko, which is loaded by the hm2-7i90.ko card driver. > I don't want to point him > this direction if it's not particularly stable, but he's technically > savvy enough to get over a few rough spots. Since I'm walking on new ground with this, Martinjack seems to have disappeared, its a somewhat lonely trail. I could use the company as I toddle along. Its just as stable as the same code running on an x86 box would be. The only warning I'd issue other than keeping motorish noises out of the system with a single point ground system, is the whole i/o on a pi comes and goes thru whats basically a usb hub, and keyboard/mouse events seem to be treated with very poor priority as the uptime accumulates. Generally fixed for a while by rebooting. That needs addressed by the pi builders, probably by adding enough memory that it stays out of the swap file. It has a gig now, needs another from my diagnosis. 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
