Wondering if anyone can help. I had the Remote Proc/RpMsg working passing 
data to and fro. However I liked the functionality of uio_pruss so I have 
updated my kernel to 4.4.20-ti-r44 following advice from some of the guys 
on the board. Thanks to all who responded last time, uio_pruss is what I 

So I have rebuilt my device tree to include am33xx-pruss-io.dtsi. and 
installed under the kernel directory in /boot/dtbs. I reboot and when I run 
lsmod I can see the three uio kernel objects. I am sure it is using the 
rebuilt device tree because I turned off the heartbeat on the USR0 led as a 
test in the am335x-common.dtsi. It isn't toggling anymore. 

I have built an example PRU program, PRU_LED0. I have setup the hex utility 
to run the following cmd file


                PAGE 0:
                .text: o = 0x0, l = 0x2000, files={text.bin}
                PAGE 1:
                .data: o = 0x0, l = 0x2000, files={data.bin}

I have an error, if I use this it complains 'not enough files for ".text" 
and ".data". So I removed the files command to make it like what I built 
for Remotew Proc/RpMsg and it builds a _image.obj. Trouble is that it is 
the test and data combined. The rp_proc loader I think can split the file 
and load text and data. However I can't see a way to split them for using 
with uio_pruss which calls prussdrv_exec_program and 

Is there a utility or macro I could use to find the data and text portions 
of the image obj and split them ?

I am pretty sure this is the problem. I took portions of the 
prussdrv_exec_program function into my programm to see where the calls 
fails. I seem to be able to run prussdrv_pru_disable. It is failing at 
prussdrv_pru_write_memory, just before it calls prussdrv_pru_enable_at to 
run the code.

Fustrating... I am sure I am missing something obvious.



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 
For more options, visit https://groups.google.com/d/optout.

Reply via email to