RTEMS on Beaglebone Black

[Mathew Benson]

You're doing that in the CPU?  If all your doing is toggling a GPIO at a steady rate, why don't you just use the PRU and a PWM pin?  Or do you have RTEMS running in the PRU?

Sent from my iPad

> On Feb 16, 2015, at 12:15 AM, angelo fraietta <newsgroups at smartcontroller.com.au> wrote:
> 
> Greetings
> 
> Have you got interrupts working on the GPIOs. Also, do you have any sample of reading and writing to GPIO. I need to see whether it is going to be fast enough,
> 
> I ran a program (on linux) on beagle that used registers basically toggling an output. EG
> http://vabi-robotics.blogspot.com.au/2013/10/register-access-to-gpios-of-beaglebone.html
> 
> It toggled at rate of just under 1Mhz, and what was just doing a while 1 loop. I did not look even look at interrupts there and did nothing else - I didn't even do any reads of GPIO.
> 
> I want to get interrupts happening at 1.56Mhz (preferable) and read 14 GPOI, sbut I could go to half the rate by reducing my sample rate.  The beagle runs at 1Ghz, so I think it should be able to handle it.
> 
> 
> Thanks
> 
> 
> 
>> On 23/01/2015 4:19 PM, Ben Gras wrote:
>> All,
>> 
>> A while ago I finished the basics needed to use the beaglebones and
>> beagleboards with RTEMS. The hardware support isn't very complete yet.
>> The code is merged with RTEMS mainline though. My fork of rtems-tools
>> and RSB is needed for help with building.
>> 
>> Full details on how to build it are here:
>> http://www.shrike-systems.com/beagleboard-xm-beaglebone-black-and-everything-else-rtems-on-the-beagles.html
>> 
>> I hope you like it :-). Let me know if you'd like any followup.
>> 
>> Cheers,
>> Ben
>> 
>> 
>> 
>> 
>> On Thu, Jan 22, 2015 at 4:46 AM, angelo fraietta
>> <newsgroups at smartcontroller.com.au> wrote:
>>> Greetings
>>> Does anyone know the status of the beaglebone port?
>>> 
>>> Thanks
>>> 
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