[FTC]: Robot problems with motor movment

[Mike Betts]

Tom & Mike,

First of all. Please be absolutely sure that you have the very latest RobotC (v2.01) installed on your computer and that you have downloaded the very latest firmware version (v7.88) to your brick.

Next, open a new program in RobotC using the Teleop template that comes with RobotC. You will notice that it has an empty initializeRobot() routine that is called from the main task just before the waitForStart() statement.

Please add this back into your code and then put the following statements into initializeRobot():

    motor(leftMotor) = 0;
    motor(rightMotor) = 0;
    motor[beltMotor] = 0;
    motor[feederMotor] = 0;
    motor(shooterMotor) = 0;

If neither of these actions solves your problem, you may have to find someone smarter than me to help you.

Please let me know how you make out.

Regards,

Mike

[l0jec]

You issue is likely with floating the motors in ROBOTC:

    else
    {
      motor(shooterMotor) = 0;
      bFloatDuringInactiveMotorPWM = true;
    }

I've notice some erratic behavior if you set a motor, change the bFloatDuringInactiveMotorPWM flag and then set the motor again. Remember that the flag affects all your motors and it seems to only affect motors when you actually set a motor (if you set a motor and then flip the flag, ROBOTC will not apply the coast/float flag until you set the motor again).
You may want to just always float or change the flag back and forth every time before you set any of your motor outputs.