On 6/23/2015 12:04 AM, chnyc wrote:
> 
> 2)  *klatency* - runs with following error:
> 
> $ xeno klatency
> open(/proc/xenomai/registry/native/pipes/klat_pipe): No such file or 
> directory
> modprobe klat_mod or try the -P option?
> 
> Is the reason I can't run the above due to kernel config issues? If so, 
> it's not clear to me where/how to change the config settings since I didn't 
> compile from source.

Unknown, I'm not a Xenomai expert...I'd look into the docs at the
Xenomai site.  If you need to build from source, just clone:

https://github.com/RobertCNelson/bb-kernel/tree/3.8.13-xenomai

...and run "./build-deb.sh".  You'll get a compiled kernel, *.deb
package, and a full source tree for experimenting.

> 3) *Motor test* - My intention is to run some motor tests with Xenomai and 
> without and compare performance. Do you have any recommended 
> Xenomai-specific tutorials using motors or for any actual use case of the 
> kernel in action on the BBB? Although I recognize that much of your 
> wonderful MachineKit work is about driving motors, I've found very little 
> on the subject showing simple usage without capes or without MachineKit.

"Motor test" is a bit vague.  You can drive motors _many_ different
ways, from sending packets via Ethernet or CAN to controlling hardware
PWMs to interacting with the PRU to twiddling GPIO pins.

What exactly are you trying to do?

-- 
Charles Steinkuehler
[email protected]

-- 
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