I'm attempting to build a 3D printer using an Arduino Due. The stepper motor drivers I have purchase require a 4 microsecond pulse, but Marlin is pulsing at 1.7 microsecond using the DUE (Marlin4Due). I have searched the web for a solution to extend the pulse length with no success. Has anyone had success with extending the pulse using the latest version of Marlin? Any help would be greatly appreciated.