2013/4/21 Michael Haberler <mai...@mah.priv.at> > > Am 21.04.2013 um 17:19 schrieb Andrew <parallel.kinemat...@gmail.com>: > > > Michael, Kent, thanks for your help! > > It's a pity that I'm not quite a Linux guy. But when the black BeagleBone > > appears I'll hopefully try to figure it out. > > We'll have a ready-to-go SD card image with xenomai, all prerequisite > packages and linuxcnc installed in a week or two; that will include > Charles' PRU stepgen and Sergey's/GP Orcullo's emcweb, and should reduce > the guru requirements to get things going >
That is absolutely great! most of the work on that platform concentrated on steppers so far because > being on the low end this looked like the likely use case > Sure, this is one point. And another point is low latency (you say 200kHz step rate) could help increase servo frequency to say 10KHz. Or ARM CPU is not enough for that servo frequency? Though, 4-core 2GHz ARMs already released... > "DAC" really boils down to PWM output > Sure, PWM output just needs a simple +-10V converter. again the linuxcnc stock components like pwmgen are included, and for servo > their speed should be sufficient > > Again, how do you estimate max servo frequency for ARM platform, precisely BeagleBone? And what if some weird kinematics like Stewart platform should be computed? Andrew ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
