On 12/16/19 5:40 PM, John Dammeyer wrote: > > For example. The board in the machine at the moment generates a Servo Jitter > of 33217 and Base Jitter of 131983. > For the MESA and PP configuration I have: > BASE_PERIOD = 24000 > SERVO_PERIOD = 1000000 > > If I understood the document link above correctly I should have set the base > to at least 132000 which would limit my step rate to about 3kHz. The video > board is a ow profile card that has a DVI connector out and can run to two > VGA monitors. Really just designed for desktop PC's that need multiple > monitors to display government forms or whatever. The Lenovo PC and card > came from the government surplus. > > Now if I remove the video card and run the latency test for the on board > video I get a Servo Jitter of 351232 and Base Jitter of 418333. > > Setting the .ini BASE_PERIOD to 420,000 results in no longer getting the > initial servo message. Of course now step rates are so severely restricted > that jog on the X axis results in an immediate following error. > Yes it shounds like you are understanding the docs.
Have you turned off all the power management in BIOS along with any speed stepping any virtualization? All should off and not used. If you have all these off then the motherboard and CPU chosen is not a low latency combo. Often the BIOSes are broken and even though you have them off they may not really be off. _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
