If you buying a TMC2100 from MKS you must solder the small pad.
When you don't solder that small pad
[attachment 85591 addon.jpg]
the pin has no connection to the chip. So your soldered bridge from GND to that pin does nothing.
When you don't solder that small pad
[attachment 85591 addon.jpg]
the pin has no connection to the chip. So your soldered bridge from GND to that pin does nothing.