@alexsomesan got mine working by now, looks like my dc-dc-stepdown on the extruderfan interferred with the SPI,now with going straight from the powersupply to the mosfet and a added capacitor erverything works as expected
I solved the problem for the SPI mode (Chinese TMC needed to remove resistor and make solder in two points)Now SPI with my coreXY work but I've many questions due to strange things <span></span>
...Still can't make those &%§# drivers work without skipping steps...I've tried putting more current in them (It work better but can't go further than 1800 mA) and it keep kipping steps each time there's an accelerationI haven't found yet the good value of Stepper High Delay for my ramps FD (what should I put)What are the settings for my coreXY to print without skipping problems ???
What’s your steps_per_mm value for X and Y.
What motors are you using?
Do you have heatsinks on the driver boards? Which side of the board are they on?