Eric, Am 29.05.2013 um 00:37 schrieb Eric Keller <[email protected]>:
> On Tue, May 28, 2013 at 12:05 PM, Sebastian Kuzminsky <[email protected]> > wrote: > >> I'd be happy to help with this. Any thoughts on what/when you want >> merge with the mainline of LinuxCNC? > > I would also like to help. I need to test the old toolkit to see what > is happening with that. as for ARM boards, I think the most valuable contribution right now would be to document and provide working kernels, which is the #1 bottleneck; I am not sure the implications of that prerequisite have fully sunk in with the determined hardware shopaholics the build and test process for a working Xenomai kernel is a bit involved and it's easy to overlook some step; the Xenomai folks do the best they can but some of the stuff going on over there is 'beyond my pay grade', as cradek would say also, due to the device tree work the times of packaged, runtime configurable kernels for embedded platforms are not that far off, some initial results becoming visible; I am not sure this will apply to Xenomai but it could very well to RT-PREEMPT and that would be a big step forward towards the ease of installing a new kernel say on x86 off some major distro the linuxCNC build per se really is nothing new or particularly challenging for anybody who has ever replicated the steps 'Installing from git source' from the wiki, and I'd be pressed to note more than the extra configure options also, drivers for a wider variety of peripherals would be nice to have; not everything around LinuxCNC just has to be hard realtime and some I/O functions could well be provided through userland HAL components using stock kernel facilities like existing PWM device drivers and the like, for instance print nozzle temperature control the third 'nice to have' item would be instructions to transition from some stock SD card/distro to a fully working system; usually there are few config files, permissions etc which need tweaking and it'd be nice to reduce the suffering by re-discovery here btw GP Orcullo's build documentation on the Raspberry image build is very nice and complete, so keep those clones coming ;) note that we're not restricted to x86 and ARM; Xenomai builds on Blackfins and ppc as well and then some, and RT-PREEMPT on likely an even wider range. I think once we have the unified binary it will make sense to explore packing by architecture, say arm7l for a start; I think that'd be entirely possible eventually. Right now there isnt much point to that yet. -- semi-related, I hear noises that the Beaglebone will sport an RT-PREEMPT kernel soon too, since it seems some major customer put in a formal request for that. Not necessarily better results to be expected, but at least a second option. The #beagle IRC channel is going through a sudden bump of interest, it seems the Beaglebone has appeal to a wide range of users, and the folk hanging out on that channel are a bit pressed to keep up with the sudden influx of noobs - Michael > > I keep hoping to hear of some break out board replacement for the BBB > because it would probably be useful to have a target to aim for. > Eric > > ------------------------------------------------------------------------------ > Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET > Get 100% visibility into your production application - at no cost. > Code-level diagnostics for performance bottlenecks with <2% overhead > Download for free and get started troubleshooting in minutes. > http://p.sf.net/sfu/appdyn_d2d_ap1 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
