Thanks Jacek, this is very helpful; is there any chance you canalso point me to a link re:
Make sure that you loaded overlay enabling PRU and that the PRU driver is loaded? Thanks again. Bit Pusher On Tuesday, October 1, 2013 6:45:16 PM UTC-4, Jacek Radzikowski wrote: > > On Tue, Oct 1, 2013 at 6:13 PM, Bit Pusher <ken.w....@gmail.com<javascript:> > > wrote: > >> /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. >> >> > sudo dtc -I dtb -O dts am335x-boneblack.dtb > > /tmp/am335x-boneblack.dts_orig > > Instead of /tmp you can use any other directory in which you can write. > Sudo executes only dtc with root privileges, redirection is done by your > own shell. > > > 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\> >> > > Make sure that you loaded overlay enabling PRU and that the PRU driver is > loaded. You can also use strace to see where the program fails. If the > driver is not loaded it will fail on opening device file from /dev/ or a > file from /sys (don't remember exactly). > > I tried Radzikowski’s magical hack. Create /usr/local/src/pruss_magic_jr, >> but this didn't work. >> > > This bug has been fixed a long time ago and PRU works fine without doing > magical tricks. > > j. > > -- > Given a choice between two theories, take the one which is funnier > -- 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.
