I think the BBB was popular because of the twp PRUs. These are programmable processors that are separate from the CPU. So you can get very accurate real-time pulses out even with poor latency under Linux.
However, this does require programming the PRUs. Machinekit had a HAL unit for the PRUs. I don’t know if LinuxCNC has this or not. > On Aug 4, 2023, at 11:18 AM, andy pugh <bodge...@gmail.com> wrote: > > On Fri, 4 Aug 2023 at 01:48, alanmthomason--- via Emc-users > <emc-users@lists.sourceforge.net> wrote: >> >> Hi There.I'm trying to work through setting up linuxcnc on a beaglebone >> black. I've run the latency-test, with results that are not looking >> good.has anyone else run this test with a Beaglebone black? Is there any >> way to improve results. > > I think that when Machinekit were fond of the Beaglebone they tended > to run it headless. I can't recall whether that was just poor graphics > performance in general, or whether it was due to latency issues. > > You could try installing the (old) Machinekit image to see if the > latency with that kernel is better. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
