I think I know exactly what is wrong.  You need to activate the Remoteproc 
PRU framework.  This is no longer active by default.
Robert Nelson's script which is available via Github repository will fix 
the problem.

I have been working on detailed documentation of the entire process to 
activate the framework and set up the C compiler:

https://github.com/Greg-R/pruadc1

More specifically, look at this PDF file:

https://github.com/Greg-R/pruadc1/blob/master/doc/PRUADC1latex/PRUADC1.pdf

Go to the chapter "Setting Up the Remoteproc PRU and Compiler on the 
Beaglebone Green".

Now, the chapter is not completely finished.  I am still seeing a problem 
with the configuration
At boot, the PRU firmwares are not starting correctly.  I don't understand 
why this is.

However, you can do this:

rmmod pru_rproc

and then

modprobe pru_rproc

The firmwares will start running.
More investigation, required, but at least there is some path to getting 
things working for now.

I will do some more work on this later today.

Regards,
Greg


On Tuesday, November 8, 2016 at 11:42:25 AM UTC-5, Zach B wrote:
>
> I have spent a solid 12 hours trying to get the PRU's on the beaglebone to 
> work. So far I seem to be completely stuck at the getting the device 
> overlay to work as well as enabling the remoteproc. I have tried to piece 
> together all of the information I have found on the internet but it is 
> either out of date or extremely fragmented. I can't seem to find a current 
> working example or I hit a wall when following along as said previously.
>
>

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