Hi folks,

right now I am trying to get the the PRU with the remoteproc-driver run. It 
ist working quite well, but there is one Problem which I dont now how to 
solve it.

I am trying to use the shared Memory between the ARM and PRU. 4a310000 
startig adress. My Problem is that in my application I want to write data 
to the shared memory and afterward start the PRU-Core and read put the 
data. I am writing with a c-Programm with mmap. It works good and I can 
read out the data after I wrote it to the RAM. I am using the devmem2 -tool 
from DerickĀ“s Exploring Beaglebone Book.

No my main problem. After I wrote my data to the shared RAM and start the 
PRU-Core (changing the state of the remoteproc-driver) all my data is gone 
and in the shared Memory just zeros exist. My question is, why is the 
driver writing just zeros to the shared memory when starting the PRU-Core. 
And is the any possibility to avoid this process of initilaizing all the 
shared memory?

Do you have any ideas? Why and how this happens?


Best Wishes

Maxim

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