* #define MISO, MOSI, SCK as well as your CS lines in "Configuration.h" or "userpins.h" if you are using a custom board. (CS lines can be be defined in Repetier's  graphical config

#define MOTOR_CURRENT { 900,900,1000,1000,1000,1000 }

#define NUM_EXTRUDER 2

-> followed the "sehr sparsam & übersichtlich" instructions on http://www.mono-project.com/download/stable/#download-lin (the site talks about 16.04 or older and "should work wit

#define FAN_BOARD_PIN -1

#define UI_DELAYPERCHAR 50

#define TRY_AUTOREPAIR_LCD_ERRORS

#define HOMING_ORDER HOME_ORDER_XYTZ

#define ORIG_ADC_KEYPAD_PIN 5

#define EXT0_EXTRUDER_COOLER_PIN ORIG_FAN2_PIN

#define TMC2130_X_CS_PIN 31

#define MOTOR_CURRENT

#define ENDSTOP_X_MAX_INVERTING false

#define MULTI_ZENDSTOP_HOMING 0

#define SUPPORT_LASER 1

PCK1 seems not to be the problem. I deactivated it and used the SilentStepStip TMC2130. Still the same result. I also used a regular Arduino Due and connected the SilentStepStip TMC2130 to it. Still t

Regarding "#define SDSS 77" I am not sure what to do. I also tried several combinations trying other configurations like "#define NONSTANDARD_SDSS". (Pin configurations at the end

#define DAVINCI 3// "0" if not DAVINCI, "1" For DAVINCI 1.0, "2" For DAVINCI 2.0 with 1 FAN, "3" For DAVINCI 2.0 with 2 FAN, 4 for AiO (WITH NO SCANNER SUPPORT)

#define ENDSTOP_Z_BACK_ON_HOME 2

#define EEPROM_AVAILABLE 1