enable PRU beaglebone black

0
votes

I want to operate pins of beaglebone black for programmable run-time unit. My "beaglebone black rev c" details are as follows

cat /etc/dogtag 
BeagleBoard.org Debian Image 2016-05-13

cat /etc/debian_version 
8.4
cat /proc/cmdline 

console=ttyO0,115200n8 root=UUID=3259b2e9-2c2b-4d8a-ac11-ed5a7a76f1d4 ro rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=enable

cat /sys/devices/platform/bone_capemgr/slots
0: PF----  -1 
 1: PF----  -1 
 2: PF----  -1 
 3: PF----  -1 
 4: P-O-L-   0 Override Board Name,00A0,Override Manuf,BB-UART4

I have tried

config-pin -q p9.22

it returns

P9_22 pinmux file not found!
cape-universala overlay not found
run "config-pin overlay cape-universala" to load the cape

I want to operate pins using commandline as well as c program

Can anybody guide me how to do it? Can you suggest references for this? Any kind of help will be very helpful.

1
beagleboneblack

1 Answers

0
votes

For the PRU you should load the corresponding overlay. Please take a look at overlays collection by Robert Nelson: You will need at least one of PRU dtbo files.