Not sure if I should necro or start new thread..

Technical Java
1

…so I"ll start a new thread. Working with Java, I successfully imaged the cRIO, but I am having trouble with run. Half of the time running gives me a connection: timed out error, but when I fix it and it starts running it doesn’t seem to work.

I’m not sure what the problem is, it says it is running, but even if i change
drive.tankDrive(left, right);
to
drive.tankDrive(10, 10);
the motor in pwm slot 1 doesn’t do anything, even if i change to driver and enable the code.

I’ve been following the tutorials at
http://wpilib.screenstepslive.com/s/3120/m/7885/l/79407-configuring-the-netbeans-installation
Got to the page after it, it seems running the code is all it wants me to do, but it doesn’t work.

In case it is needed here is my code: (no comments)

code
[spoiler]

package edu.wpi.first.wpilibj.templates;

import edu.wpi.first.wpilibj.SimpleRobot;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.Timer;
import edu.wpi.first.wpilibj.Joystick;

public class team4692robot extends SimpleRobot
{
RobotDrive drive = new RobotDrive(1, 2);
Joystick left = new Joystick(1);
Joystick right = new Joystick(2);

public void autonomous() 
{
    
}

public void operatorControl() 
{
    while(true && isOperatorControl() && isEnabled())
    {
        drive.tankDrive(left, right); 
        Timer.delay(.005);
    }
}

public void test() 
{

}

}

[/spoiler]

2

What type of motor controller are you using? Are you sure that the PWM cable is plugged in with the correct polarity on both ends and properly seated in the controller (particularly a problem with Victors)?

How about the 3 green LEDs on the Digital Sidecar? All lit bright green?

You say “it doesn’t seem to work” and that the motor attached to PWM 1 doesn’t do anything. How about the one attached to port 2?

3

Also I noticed I wasn’t getting the axis values from the joystick, does joystick.getY(); get the y axis value?

Tallon speed controller, negetive is closest to the cooling fins/fans, right?

The BAT, 5V, and 6V led’s are lit up.

Also their is no motor hooked up to the pwn 2.

However, my mentor just noticed their is no power to the speed controller, I’ll see if it works with that now.

EDIT: It was the power, it works now. Is http://lcec.us/javadoc/edu/wpi/first/wpilibj/Joystick.html the best list of FRC api functions, or is their a better one somewhere?

Sorry about that, that always happens in programming, I figure it out as soon as I ask for help.

4

In Netbeans you can right click whatever documentation you’re looking for and click ‘Show Javadoc’. Hope that helps.

5