Dual axis homing #52
Description
Latest GRBL (1.1.h https://github.com/gnea/grbl/releases) implemented dual axis homing (with two motors & two endstops) to be able to square the gantry. Mostly used for dual Y motors, I think.
I tried to add that patch (gnea/grbl@b75e557) by hand, it compiled, but motors didn't move at all, so I don't know what I did wrong.
It is pretty clean to add it except the ISR handler, which is a bit different for LPC.
Do you think it may be easier for you to do it? This is a very useful feature for most mid-size CNCs that are using multiple motors.
The nice thing is that A axis is already there in the LPC port, so it can be used as second X or Y motor.