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A4988 matching pulse

Posted by vsavic 
A4988 matching pulse
August 25, 2018 04:10PM
I wanted to try marlin on my printer, but I'm encountering some issues with steppers and driver A4988.

I'm using this setting (as recommended for A4988):
#define DEFAULT_AXIS_STEPS_PER_UNIT    { 93, 93, 1097.5, 97 }

#define MINIMUM_STEPPER_DIR_DELAY 200
#define MINIMUM_STEPPER_PULSE 1
#define MAXIMUM_STEPPER_RATE 500000


For example, I have signal from original firmware which works fine, and this is how it looks for one step from encoder:



And here's from Marlin 2.0:


Here's also WFM files for this recorded signal.
[drive.google.com]

Any idea which parameter to change in order to create the same step signal?

Thanks in advance.
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