what this is, not understand lot say hal need write code but not understand anything what code need write, not easy help, lot has only english plaa plaa plaa but no say how use gpio pins linuxcnc rpi4 stepper drivers pins step and dir and enable, paraller port has simple easy but why not rpi4 have same system can add pins and step/dir, number. etc, pin 17 is x axis step, pin 13 is x axis dir, were this is, or not have why not.
