Trying to run instructions by Shabaz ( http://www.element14.com/community/community/knode/single-board_computers/next-gen_beaglebone/blog/2013/05/22/bbb--working-with-the-pru-icssprussv2) on compiling device tree. I'm on Linux ubuntu-armhf 3.8.13-bone20 #1 SMP Wed May 29 06:14:59 UTC 2013 armv7l armv7l armv7l GNU/Linux (previously I went all the ways through compiling a kernel version
ubuntu-13.04-minimal-armhf-2013-08-25.tar.xz to the point of booting it, but I was unable to get any ports open (usb0 or eth0) from host despite editing both /etc/network/interfaces and /etc/resolve.conf on sd card prior to booting and couldn't find a way around). On the current 3.8.13-bone20 based on an image download, I got eth0 working but not usb0. Anyways, am now stuck again at: /boot/dtbs\> sudo dtc -I dtb -O dts am335x-boneblack.dtb > am335x-boneblack.dts_orig -bash: am335x-boneblack.dts_orig: Permission denied any ideas? Thanks. On a separate issue (that I am also stuck on), in ~/pru/am335x_pru_package/pru_sw/example_apps\> I copied pasm to pasm_2 in ~/pru/am335x_pru_package/pru_sw/utils and was able to assemble and make example; did a modprobe uio_pruss as recommended by boxysean, but am now stuck at: ~/pru/am335x_pru_package/pru_sw/example_apps/bin\> sudo ./PRU_memAccessPRUDataRam INFO: Starting PRU_memAccessPRUDataRam example. prussdrv_open open failed ~/pru/am335x_pru_package/pru_sw/example_apps/bin\> I tried Radzikowski’s magical hack. Create /usr/local/src/pruss_magic_jr, but this didn't work. >From Przemek, I found It works for me but before modprobe uio_pruss you have to load device tree overlay by something like echo BB-PRU... > /sys.../cape... Sorry I can't provide exact form as I'm typing on a tiny keyboard underwater in Florida:) but am not sure what echo BB-PRU... > /sys.../cape... is: Can anyone help? Thanks. Bit Pusher On Sunday, May 5, 2013 5:54:54 PM UTC-4, Steven Feldman wrote: > > Can anyone provide me step by step instructions on how to enable the PRU? > I was told that you had to rebuild the kernel but I am not sure how to do > this. When I tried to do so from the git repo on the board I run out of > space, and I don't know how to cross compile it. > > > Thanks, > Steven > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
