I am in the middle of struggling while introducing myself to the PRU. I want to contribute to the world to help some other struggling individual and this seems like the right place to post a solution.
I am using Beaglebone Black Rec C. Running the uboot_overlay_pru=AM335X-PRU-RPROC-4-19-TI-00A0.dtbo defined in /boot/uEnv.txt If you do not see the /dev/rpmsg_pru3* devices and you expect them, the zip file I have attached has a working solution to make them show up. I believe the solution has a lot to do with the right resource file and the PRU code. They will not simply just show because you have 2 PRU's. This may seem obvious to the more advanced PRU people, but took me a couple of weeks to figure this (and other things) out. Here are my results after days of trying to figure out the magic to get the devices to show up: root@beaglebone:/home/debian/rpmsg_pru# ./run.sh rpmsg_pru30 rpmsg_pru31 Once the devices show for you: echo "test30" > /dev/rpmsg_pru30 echo "test31" > /dev/rpmsg_pru31 cat /dev/rpmsg_pru30 <Ctrl> - c cat /dev/rpmsg_pru31 <Ctrl> - c -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/562bed0a-c4d6-43aa-b62a-7528034cc8b6n%40googlegroups.com.
<<attachment: rpmsg_pru.zip>>
