Re: External Drivers and Ramps

With external drivers, the micro stepping jumpers on the ramps are not used

You can set the ramps jumpers how ever you like, all on, all off, mixed, they will be ignored.

This is presuming your external drivers are just use the step, direction and enable lines.

Re firmware: yes, if your not using eeprom setting. As eeprom setting will over ride the firmware settings.