The PWMPortEnum enum defines possible PWM ports on the Beaglebone Black.
public enum PWMPortEnum { PWM_NONE, PWM0_A, // PWM_P9_22_or_P9_31 (EHRPWM0A) PWM0_B, // PWM_P9_21_or_P9_29 (EHRPWM0B) PWM1_A, // PWM_P9_14_or_P8_36 (EHRPWM1A) PWM1_B, // PWM_P9_16_or_P8_34 (EHRPWM1B) PWM2_A, // PWM_P8_19_or_P8_45 (EHRPWM2A) PWM2_B, // PWM_P8_13_or_P8_46 (EHRPWM2B) // PWM_P9_42, // ECAPPWM0 // PWM_P9_28, // ECAPPWM2 }