hi,
there is a issue with step pulses when charge pump is enabled in pulse engine.
tested with mach3 v3.043.066 (demo).
measured on pin 46 (step out - x) with commands "G01 X10", "G01 X0".
tested with firmware 3.0.46 and also with 3.0.48. same issue.
normaly G01 generates pulse train with period 16ms (see "pishtak_normal.jpg").
pulse width is 20us. no problems when charge pump is DISABLED.
as soon as i ENABLE charge pump on pin 53 in pulse engine,
there are glithes in pulse train. this happens randomly.
glitch looks like on "pishtak_glitch1.jpg". total width is 1ms.
"pishtak_glitch2.jpg" and "pishtak_glitch3.jpg" is zoomed to the beginning of the glitch.
as you can see, the glitch is visible on oscilloscope, you can hear it
and also feel it when touching stepper motor.
trigger of the oscilloscope is setup so it detects positive pulse with width larger than 100us.
didn't measured Y and Z pulses but these glitches also happens
on Y and Z axis (you can hear it and feel it).
can you check it ?
regards
pishtak