Hi Karl,
Have a look how I solved that problem in:
https://github.com/modmaker/BeBoPr. The file pruss.c is the one you
want. This code is from 'before' the PRU-library, but has proven stable
since the BeagleBone white.
Cheers,
-- Bas
On 3-11-2014 10:09, Karl Karpfen wrote:
There is a lot of useful stuff regarding PRU out there, unfortunately
it is not very useful for me. These examples/documentation all make
use of Linux and a PRU-library doing many "magic" stuff - initialising
PRU, uploading the PRU-program and starting it.
Since I'm not using Linux/PRU-library but try to program everything
for my own, I have to start a bit earlier and need to understand the
whole intitialisation and upload stuff.
I already tried it with AM3358 TRM which is very detailled, there I
fail to understand the working principle. Means TRM tells me what
registers are there and what they are doing, but it does not give me
the whole picture what has to be done in which order to have it
running correctly.
Next I tried it with the existing Linux-drivers and PRU-libraries but
don't have been very successful with reverse-engineering of it (there
are too much dependencies to understand it and to get a full picture
there).
So...is there any description/getting started/cookbook out there that
is helpful when one wants to program PRU from scratch and without the
help of existing drivers/libraries?
Thanks!
--
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