getting started with the ben-wpan boards

David Reyes Samblas Martinez david at tuxbrain.com
Wed Mar 16 21:27:56 EDT 2011


can I suggest that anyone with the boards (an a not messed up infrastructure :P)
 can upload a video with this test some where?

2011/3/17 Werner Almesberger <werner at almesberger.net>:
> This is for the lucky recipients of the ben-wpan samples.
>
> [ Note: I'm having a chain of infrastructure troubles these days,
>  including sudden loss of my old mail address. I'm migrating to
>  werner at almesberger.net, but it will take a few days before I'll
>  have solved the other infrastructure issues and can then set up a
>  proper spam filter. Anything that went to werner at openmoko.org
>  since about last Saturday is lost. ]
>
> You should have received:
>
> - one atben board
> - one atusb board
> - one atusb-pgm board with ~10 cm ribbon cable and UBB (assembled)
> - two replacement pogo pins taped to the ribbon cable
>
> Adam, you got all this twice.
>
>
> Now, to have fun with the boards, here are a few prerequisites:
>
> - get the ben-wpan repository from git
>
> - install the host toolchain for your favourite distribution
>
> - build and install the tools under ben-wpan/tools on your Ben and on
>  your PC (for upload to the Ben, bring it up first and set up USB
>  networking):
>
> PC:
>    make
>    make install
>
> OpenWRT (add Ben to /etc/hosts as "192.168.254.101 ben"):
>
>    make TARGET=ben_openwrt
>    make TARGET=ben_openwrt upload
>
> Jlime (add Ben to /etc/hosts as "192.168.1.202 jlime"):
>
>    make TARGET=ben_jlime
>    make TARGET=ben_jlime upload
>
> Boot the Ben without the atben card and run
>
>    echo jz4740-mmc.0 >/sys/bus/platform/drivers/jz4740-mmc/unbind
>
> Then insert the card. atrf-id should detect it.
>
> With Jlime, you can then run
>
>    atrf-rssi -g
>
> and see what's going on in the 2.4 GHz band. atrf-rssi on OpenWRT
> only has text output (no -g option). atrf-id and atrf-rssi also work
> on the PC with atusb.
>
> The ping-pong test exercises two-way communication:
>
> On the Ben, run:
>
>    atrf-txrx -P -p 3
>
> On the PC, run:
>
>    atrf-txrx -P -p 3 1
>
> The Ben should now display a series of dots. This means that Ben and
> PC are communicating. When you move further away, the dots should
> eventually become * or -. * means that a packet was received but that
> the peer didn't receive ours. - means a corrupt packet was received.
>
> If communication breaks down completely, the Ben just doesn't display
> anything. The PC displays a + sign every second, indicating that it's
> trying to kick the communication back to life.
>
> With this, you can find out how far away you can move from your PC
> before things go bad.
>
> The atusb-pgm cable is used to change the atusb firmware. For now,
> the installed firmware should be sufficient. The plan is to install a
> DFU-speaking boot loader, so that further upgrades can be done via
> USB and without requiring a special cable. The boot loader is almost
> done, just need to figure out a USB reset problem.
>
> - Werner
>
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-- 
David Reyes Samblas Martinez
http://www.tuxbrain.com
Open ultraportable & embedded solutions
Ben NanoNote, Arduino, Openmoko
Hey, watch out!!! There's a linux in your pocket!!!




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