Thanks Robert, that rt linux project seems very interesting, but as you say, it is still too high-level / multitasking in order to beat the PRU. So one would have to remove basically all the remaining functionality from rt linux to arrive at something fast and deterministic at the ns timescale i guess..
Thanks anyways! On Wednesday, August 5, 2015 at 7:00:50 PM UTC+2, RobertCNelson wrote: > > On Wed, Aug 5, 2015 at 11:56 AM, Lenny <[email protected] > <javascript:>> wrote: > > Hello everyone, > > > > I find it a pity that the PRU runs only at 200 MHz and not at the full 1 > > GHz. I was wondering if there exist any linux distributions (or not > linux at > > all) which allow to run real-time code on the main CPU. Of course, this > > would have to disable all linux features that are not explicitly > implemented > > in the code, but in many cases I think that could be desirable. Has > anyone > > ever done something like that? I guess it boils down to using an > extremely > > minimized kernel / completely removing the OS and only running the > necessary > > stuff, but I am by no means an expert in low-level linux programming and > was > > wondering if there exists some code out there which would make it easier > for > > me to start with. > > In the end, I would like to use more powerful instructions of the main > CPU > > such as floating point arithmetics and the higher speed to implement > > PRU-like functionality for DSP in real-time. > > > rt linux: https://rt.wiki.kernel.org/index.php/Main_Page > > sudo apt-get update > sudo apt-get install linux-image-4.1.3-ti-rt-r7 > sudo reboot > > but your going to find, the pru is just faster and more deterministic... > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
