I’m trying to get the servo for the yaw mechanism of a tricopter on one of the auxiliary outputs from the pixhawk.
In …/ardupilot/libraries/AP_Motors.AP_MotorsTri.h on line 14 there is a line:
#define AP_MOTORS_CH_TRI_YAW CH_7
This means it’s on output 7 of the main PWM-outputs of the pixhawk. I can change it to CH_1, CH_2, … CH_8 and it changes the output between one of the main PWM-outputs of the pixhawk. If I change it to CH_9 it uses the first auxiliary PWM-output. However, if I set it to CH_10, CH_11, CH_12, CH_13 or CH_14. It won’t even compile. Anybody knows a the cause for this?