Many beginners mistake "26V" for the supply voltage. This is a fatal error. In practice, you drive this motor with a chopper driver (like an A4988 or TMC2209) at 12V to 24V , while limiting the current to 1.0A.
You cannot use standard microstepping drivers designed for 2A/2Ohm motors directly with the BJ42D15 without modification. Here are your best options: bj42d15 26v10 stepper motor datasheet
Official Creality 42-34 Stepper Motor with Pressed on Fitting - 3D Many beginners mistake "26V" for the supply voltage
Below is a structured technical paper you could use as a template. If you obtain the real datasheet, you can replace the assumed values. you can replace the assumed values.