PRU on BBB

[Rui Paulo]

On Oct 25, 2014, at 15:48, Bernd Walter <ticso at cicely7.cicely.de> wrote:
> 
> On Sat, Oct 25, 2014 at 09:32:09AM -0700, Rui Paulo wrote:
>> On Oct 25, 2014, at 06:28, Manuel Stühn <freebsdnewbie at freenet.de> wrote:
>>> 
>>> Hello list,
>>> 
>>> I'm a great fan of FreeBSD and was very glad to see, that FreeBSD supports the beaglebone black. Even the PRUs, which I want to put into operation, are supported by FreeBSD. But unfortunately i do not have a clue, how the driver is intended to be used. For linux there is some API/docu to load/start/stop and communicate with the PRU.
>>> 
>>> Did anyone put the PRUs already into operation with FreeBSD and could give me a hint how this is done?
>> 
>> There's a work in progress PRU library:
>> 
>> https://bitbucket.org/rpaulo/libpru
>> 
>> And a program to upload binaries to the PRU:
>> 
>> https://bitbucket.org/rpaulo/pructl
>> 
>> These don't have documentation yet and you have to build them yourself, but that should be straightforward.
>> 
>> You can use the assembler from ports: devel/pasm.
> 
> We have PRU supprt?
> That's awesome.
> Had been interested in PRU, but not even dreamed about existing support.

The library and the userland utility are both under active development.  I expect to have something stable before the year ends.  Right now, I can upload/reset/enable/disable the PRUs just fine.

A PRU debugger is also in the works.

Regards,
--
Rui Paulo