On Fri, Oct 14, 2016 at 08:11:38AM -0500, Charles Steinkuehler wrote: > Setup a Mesa card with a periodic timer that triggers a capture of the > current position and generates an interrupt (the Mesa VHDL code > already supports this). In the servo thread, instead of waiting on a > software timer, you wait on the hardware interrupt.
linxucnc doesn't support threads that wait for a hardware interrupt yet, pull requests are welcome though. given the state of linuxcnc, peter has done something interesting in hostmot2: the FPGA has a PLL that samples encoders shortly before it anticipates getting a read request. this substantially reduces jitter in position feedback. Jeff ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
