On Thu, 10 May 2012 00:43:12 -0400 "Kent A. Reed" <kentallanr...@gmail.com> wrote: <snip>
> Ask Jon Elson for a different opinion as an interested party who is a > component vendor and system integrator. > > As for the ARM-specific real-time Linux that definitely is required, > Jon has been waiting for several years for RT-Linux to be ported > satisfactorily to the BeagleBoard. While the current developmental > Preempt-RT work being done with LinuxCNC is encouraging and might > port more easily, we don't know yet if it will give satisfactory > performance on x86-class boards let alone on any of the many > ARM-class boards. > > And, yes, there's the problem of interfacing the Raspberry Pi to any > real-world equipment. Jon Elson has reported on progress in the > specific case of his BeagleBoard. > > Don't get me wrong, I have two ARM-based systems running Linux on my > bench that I am playing with and I put in my reservation for a > Raspberry Pi a while ago "just because," but they are intended for > other applications. Intel Atom-based motherboards remain my choice > for LinuxCNC. > > Live long and prosper :-) > > Regards, > Kent Slightly OT but if one wants a non-intel cpu for motion control take a look at Mesa's SOFTDMC. Implements a configurable accel/decel, jerk limited and very fast servo cycle ( <= 50 KHz ). The interp, etc would run on the intel and the SOFTDMC in the FPGA handles motion. What it needs is a interface between the motion nml messages and the format used by the FPGA. I've heard rumors of someone having gotten > half way thru an implementation but quit working on it. Don't think I every got a name. :-( Sorry, just had to rattle the cage. Dave > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. > Discussions will include endpoint security, mobile security and the > latest in malware threats. > http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
