Hi Michael,

I can not blinking the user leds with the following steps:

# su as root execute the following commands to set OUTPUT mode for user
leds
echo 7 > /sys/kernel/debug/omap_mux/gpmc_a5
echo 7 > /sys/kernel/debug/omap_mux/gpmc_a6
echo 7 > /sys/kernel/debug/omap_mux/gpmc_a7
echo 7 > /sys/kernel/debug/omap_mux/gpmc_a8
# switch to user linuxcnc
cd ~/linuxcnc-dev/configs/pru-examples
make
halcmd -f debugger-example.hal
# follow the guide from ./README
# from PRU Debugger:
#    - load pruexample.dbg
#    - click "continuous"
#    - click "reset"
#    - click "continue"

Awesome! the debugger is running, and the registers are updating.

However, I could not observe any of the 4 user leds blinking.
Would the USER-LEDs be blinking at your platform?

Thanks,

-Yishin


On Fri, Jan 4, 2013 at 5:49 AM, Michael Haberler <mai...@mah.priv.at> wrote:

> Hello Joachim,
>
> good to hear you got it to work!
>
> Charles has added quite some unannounced magic to here:
> http://git.mah.priv.at/gitweb/emc2-dev.git/shortlog/refs/heads/arm335x-hal-pru-modulesince
>  I built the root filesystem with the repo in it
>
> so you might want to
>
> git pull origin arm335x-hal-pru-module
> and rebuild
> the interesting stuff is in configs/pru-example
>
> Am 03.01.2013 um 21:42 schrieb Joachim Franek:
>
> >
> > Hello,
> >
> > the best wishes to all for 2013.
> >
> > Trying the setup from
> > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?BeagleboneDevsetup
> > I have to add a file
> >
> > $ cat /etc/gdm/custom.conf
> > [security]
> > DisallowTCP=false
> >
> > (see http://ubuntuforums.org/showthread.php?t=1755126)
> >
> > and changed (as described)
> >
> > $ cat /etc/X11/xinit/xserverrc
> > #!/bin/sh
> > #exec /usr/bin/X -nolisten tcp "$@"
> > exec /usr/bin/X  "$@"
>
> thanks for those - feel free to add to the Wiki page!
>
>
> > on Ubuntu 12.04 to be able to run linuxcnc with
> > the window on the Xserver of my desktop box.
> >
> > Thanks to KAR for the explanations in the wiki.
> >
> > I have also observed the crashes after about 5min.
>
> I had these initally as well, and I permuted a few power supplies; I use a
> 5V/2A supply now and the crashes went completely away since; USB power
> alone definitely is insufficient
>
> Once reason might well be that power management (CPU frequency scaled with
> load) is turned off in kernel as per Xenomai recommendations, so it might
> well use more power than with the default kernel
>
> - Michael
>
> > But after several reboots I was able to run
> > the cnc demo programm from sim/axis/axis_mm.
> >
> > After quitting linuxcnc my Xserver hangs. Rebooting
> > shows, that the beaglebone is still running and I can
> > start linuxcnc again.
> >
> > To conect to the beaglebone
> > over the serial line I need A:
> > sudo chmod a+rw /dev/ttyUSB*
> >
> > Joachim
> >
> >
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