
This configuration drives 4-axes stepper motor driver by using BBB with LCD/HDMI attached.

"P9.25"    pru0.r30.7   X Step

"P9.27"    pru0.r30.5   X Dir

"P9.28"    pru0.r30.3   Y Step

"p9.29"    pru0.r30.1   Y Dir

"p9.30"    pru0.r30.2   Z Step

"p9.31"    gpio3.14     Z Dir

"p8.11"    pru0.r30.15  A Step

"P8.12"    pru0.r30.14  A Dir

"p9.11"    gpio0.30     Output Enable

