Klipper lost communication with mcu with bigtreetech octopus v1.1

General Discussion
1

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klipper ‘lost communication with mcu’ with bigtreetech octopus v1.1, every time error occurs in first 1 minute of printer startup. it works fine with my old setup with ramps 1.4.
klippy.log (5.4 MB)

2

Please attach your klippy.log

3

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klippy.log (5.4 MB)

and

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This error occurs every time when I home z axis.
klippy (1).log (5.4 MB)

4

Please verify the settings you used in menuconfig for flashing. It appears you updated Klipper and I’m wondering if you chose the wrong crystal speed when flashing the board.

5

I selected it by recommended value 12Mh crystal clock speed from klipper configuration references for bigtreetech octopus board.

6

The only issue that jumps out is all the SET_LED commands that are causing errors because you don’t have a neopixel defined.