after homing X axis runs away

[percarsten]

I am in the process of testing a new machine
After changing the information in the configuration file i performed the following operation
homed the x axis
then i ran a short gcode that moved 600mm and then returned 600mm
The x axis move past the 600mm mark and of course hit a hard endstop. and stalled the motors.
I then reset the board homed the x axis again this time i hit the reset button and then ran the gcode. this time the movements were as planned 600mm + direction and 600mm - direction
there seems to be a bit of a bug in the firmware.