According to this schematics you can't remove the chip because it also takes care of stepper-direction.
But as dc42 suggested, you can use the external step input.
If I were in your shoes, I would use a different stepper driver with current control.
-Olaf
But as dc42 suggested, you can use the external step input.
If I were in your shoes, I would use a different stepper driver with current control.
-Olaf
