----- Original Message ----- > On Fri, Jan 13, 2017 at 3:27 PM, sam sokolik <sa...@empirescreen.com> > wrote: > > > I have used both. If you need higher servo thread speeds (>2khz > > depending on hardware) Stick with pci/pcie. > > > > I thought the point of using the Mesa hardware was that it off loaded > the > high speed loops from the main computer. So the servo loop is NOT > running > in there FPGA?
An example of a time when you might need a faster servo thread would be running torque mode servos. I am running such a machine. It is a wood router so sees higher speeds, and has torque mode servos. Linuxcnc is closing both the velocity and servo loops with a duel PID arrangement with the velocity loop pid running in a floating point base thread running at 5khz. To do that the Mesa hardware needs to also be read/write to at that speed. ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
