Inverting motor signal

enrico77

Hi, i am using external motor driver but i need to use also a logic level converter 3.3v to 5v.
Ok, but the logic level converter inverting signal and i need to ‘reinverting’ from firmware the signal to have the correct signal for the driver.
I possible to invert enable-step and direction from firmware?

Repetier

Sure. Also some drivers need it inverted compared to others. In the config tool there are checkboxes for each motor to invert these signals. If you do it in configuration.h directly search for INVERT and you will find the flags.

enrico77

i suppose
Invert direction (INVERT_Z_DIR)
Invert enable signal (Z_ENABLE_ON)

... but for STEP ??

RAyWB

what drivers do you use?

enrico77

I use DM542T

Repetier

#define START_STEP_WITH_HIGH 0

would invert step signal. But this only works for all steppers the same time.

enrico77

Perfect! I have the same controller for all stepper!