but we ( linuxcnc ) do not offload simple realtime tasks to reliable non-jitter microcontrollers. i still cannot see why not. we take tasks like reading buttons and sensors and activating valves and updating analog values into an environment that cannot perform as well. i know this is anathema but it just dont grok! micros are cheap, micros are dependable, ask your car or watch or egg cooker tomp
On 02/03/2016 03:22 PM, Nicklas Karlsson wrote: > Micro controllers usually have hardware timers which may be used to generate > square wave pulses with the resolution of the clock frequency. The hardware > is simple cheap and beat even a very fast modern computer. > > >> On 02/02/2016 06:24 PM, W. Martinjak wrote: >>> How far is the development of lcnc on raspi/arm? >> LinuxCNC has been running on the Beagle Bone Black for >> several years. It is mostly the same codebase as LinuxCNC, >> except for running on the Prempt-RT kernel (I think I got >> that right). >> The Beagle Bone Black has a pair of 200 MHz microcontrollers >> that are used to handle step generation and other low-level >> I/O tasks at much faster speeds than the Linux CPU can deal >> with them. Great for software step generation. The Pi does >> not have these microcontrollers. >>> Would this [1] work with bare lcnc installation. >>> >>> >> No, the regular LinuxCNC distribution is for an X86 >> platform, only. Machinekit is the distro for the Beagle. >> I think people have gotten it running on the Raspberry, but >> the I/O on that board is VERY limited. >> >> Jon >> >> ------------------------------------------------------------------------------ >> Site24x7 APM Insight: Get Deep Visibility into Application Performance >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >> Monitor end-to-end web transactions and take corrective actions now >> Troubleshoot faster and improve end-user experience. Signup Now! >> http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 >> _______________________________________________ >> Emc-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
