>________________________________________ >From: Gene Heskett [ghesk...@wdtv.com] >Sent: Friday, February 01, 2013 3:48 PM >To: emc-developers@lists.sourceforge.net >Subject: Re: [Emc-developers] Python Library for the BeagleBone PRUSS > >On Friday 01 February 2013 15:43:58 Gregory Perry did opine: >Message additions Copyright Friday 01 February 2013 by Gene Heskett > >> Forget using Xenomai or RT_PREEMPT on the BeagleBone, check this out: >> >> http://hipstercircuits.com/?p=349#comment-269 > >Sounds good. I assume you have a bone and are testing this?
Yes working on it today, Elias Bakken just released the repo a few hours ago. I can successfully bootstrap PRU0 and flash the onboard LEDs with his example code. >I'm assuming one instance per axis, so how many can one bone handle? >5ns resolution would be great (in my best Tony the Tiger voice) 2ns accuracy are the numbers he is quoting with his Replicape project. Based on conversations with Gerald Coley with the BeagleBone team, there are 16 total GPIOs that can be controlled with both PRUs from the expansion headers, all completely independent of the Angstrom Linux kernel. I am thinking that once the PRU firmware has been loaded to both PRUs, that simple Python mmap can be used to control all 16 GPIOs without any latency/jitter introduced by the Linux kernel but I am just getting started with his library. ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_jan _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
