| I am working on getting the Beagle Board (with TI's OMAP3530 processor) |
| set up with a real time
| kernel, but that hasn't happened yet. I have bought another Beagle
| Board and accessories to
| ship to Torsten Koschorrek (the RTAI maintainer for ARM-based ports).
...
| Anyway, work in progress, but if this speed issue can be solved, and if
| Torsten can bring up a
| port of RTAI on it, I think we can have a nice EMC2 platform that fits
| in the palm of your hand!
| This speed issue won't be much of a concern for software-generated
| steps, either.
I don't know how many IOs the Beagle board has, but if it has enough,
this could get interesting. I have an old Dell Optiplex GXa, and the fastest I
can run a thread safely on it is about 50uS. Using a quadrature interface to
drive stepper motors it's good for rapids of 300 inch per minute at .00025" per
step (if my calculations are correct). That's faster than most stepper motors
can charge/discharge. If the Beagle board can run 50 to 100 times faster than
that, the actual stepper motor controller might be implemented mostly in
software. Hmmmm.
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