TMC 2660 work uncorrectly

[kaktus770]

Hello! Installed Klipper on clone Duet 2 WiFi, and couldn't tune tmc 2660 work correctly. Initially, after the basic configuration, stepper motors skipped steps while standing still. This was solved by commenting "idle_current_percent: 30". Now the stepper motors move, but the microstep parameter in the config affects the amount of movement - at 32 microsteps 12.5mm; at 64 microsteps 25mm and at 256 microsteps 100mm (set 100mm). Steppers on 0.9 degrees and 20 teeth pulley. As I understand it, in newer versions of the Klipper, changing the microsteps should not affect the amount of movement.
Dumps of driver with different configurations (DUMP_TMC STEPPER=stepper_a):
Dump.txt
Klippy.log with config 16 microsteps.
klippy.log

[Roycinger]

Afaik, changing microsteps without any effect on the driven distance will need "interpolate: true"

[kaktus770]

I tryed to use interpolation (2660 support interpolation only on 16 microsteps), but haven't good result.

[fuma55]

Problem is still here, changing microstepping effect distance driven by stepper motor .

For Example:

microstepping: 256
rotation distance: 40 (20 tooth, 2mm)
full_steps_per_rotation : 400 (0.9 Angle)

--> printer moves as expected

microstepping: 16 (dont matter if interpolation is on or off)
rotation distance: 40 (20 tooth, 2mm)
full_steps_per_rotation : 400 (0.9 Angle)

--> Printer moves really slow and only 1/4 of the desired distance.

[kaktus770]

Problem is still here, changing microstepping effect distance driven by stepper motor .

For Example:

microstepping: 256
rotation distance: 40 (20 tooth, 2mm)
full_steps_per_rotation : 400 (0.9 Angle)

--> printer moves as expected

microstepping: 16 (dont matter if interpolation is on or off)
rotation distance: 40 (20 tooth, 2mm)
full_steps_per_rotation : 400 (0.9 Angle)

--> Printer moves really slow and only 1/4 of the desired distance.

The problem is that with the necessary microstepping settings, the printer (I have a delta) works at a speed of no more than 50 mm / s, if higher an "MSU error" appears. I partially solved the problem - in low level settings menuconfig set "Step pulse duration 0". The printer work at 256 microsteps, the speed out 300 mm / s. But there was an unpleasant sound from stepper motors - possibly due to the StealthChop mode. As a result, I did what I wanted on the Klipper (extended auto-calibration) and returned to the RRF.

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