On Wed, Nov 25, 2009 at 11:06 AM, Jon Elson <el...@pico-systems.com> wrote:
> Yi-Shin Li wrote:
> >
> > A USB board with enough buffer for step/dir pulse commands should be
> > able to work well under EMC2 simulation mode without RTAI.
> >
> > I'm verifying above statement with ASUS EEEBOX (w/ atom processor and
> > USB ports) and MESA 7i43 USB FPGA board. It seems to work well. Here's
> > the clip for it:
> > http://www.youtube.com/watch?v=JF6dYXo2CeE
> >
> > I would be willing to help brining 7i43 to BeagleBoard if someone
> > could give me a peace of BeagleBoard and/or a CNC mill/lathe for
> > developemnt.
> >
> For a compleltely open-loop system, you can do that, but it defeats much
> of the pupose
> of EMC2. You can't run a servo system where the servo loop is closed in
> the
> Beagle Board over USB.
You are right. The servo loop should not be implemented the way as you
described. I believe it could be implemented on FPGA though.
Regards,
Yishin
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Emc-developers mailing list
Emc-developers@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-developers
