Hi, I’m trying to bring up the PRU on my BeagleBone Black. I was able to get it up using UIO method, but failed with PRU_RPROC driver.
The pru-software-support-package example compiled OK. I tried PRU_Direct_Connect0 and PRU_RPMsg_Echo_Interrupt1. I copied generated .out file to /lib/firmware. BTW, there was conflicting instructions online about how to place the .out file. One mentioned copying to FILE /lib/firmware/am335x-pru0(1)-fw, and another mentioned copy to under DIRECTORY /lib/firmware/am335x-pru0(1)-fw/. I tried both, and both failed with the same symptom.
I have the following output in dmesg, and it looks as if PRU_RPROC have not even tried to load the .out file.
[ 77.864792] pruss 4a300000.pruss: creating PRU cores and other child platform devices [ 77.934664] remoteproc remoteproc1: 4a334000.pru is available [ 77.934794] pru-rproc 4a334000.pru: PRU rproc node /ocp/pruss_soc_bus@4a326004/pruss@0/pru@34000 probed successfully [ 77.936497] remoteproc remoteproc2: 4a338000.pru is available [ 77.936603] pru-rproc 4a338000.pru: PRU rproc node /ocp/pruss_soc_bus@4a326004/pruss@0/pru@38000 probed successfully
The state file under /sys/class/remoteproc/remoteproc2 is showing "offline"
my uEnv.txt file is below: