Code running slow

[gman]

We've set up our robot's code using java to run Jaguar motor controllers via a DriveTrain subsystem. Thing is, the DriveTrain's execute() method is only being called once every 10-15 seconds. This means that we push the joystick forward, wait a few seconds, and the wheel starts spinning, then, when we release the joystick, we have to wait another 10-15 seconds for it to update again to stop. If you need code/other information, let me know and I'll post it. Thanks in advance.

[Team3266Spencer]

What format of code are you using? The command-based?

[gman]

Yes, command-based.

[Team3266Spencer]

Have you checked to see if its a networking issue, are you losing packets?

[gman]

We put some print statements next to the command statements; they're running just as slowly on the computer, so I don't think it's a network thing. Also, he computer is wired directly to the dlink at the moment (wireless cut out for some reason). If you have other suggestions on how else to test the network, let me know and I'll try it.

[Team3266Spencer]

You don't have two driverstations open do you?
This happens sometimes when there's one open on the driver account and one open on the developer account.

[gman]

No, I even restarted the computer just to make sure. Only one driver station running. We're going to try reimaging the cRIO without the CAN drivers to see if that is having some effect.

[gman]

We tried running it without the CAN plugin, no luck, we're reimaging the entire thing.

[BradAMiller]

The commands are run by repeated calls to Scheduler.run(). Make sure that it's being called in the teleopPeriodic() or autonomousPeriodic() methods in the main robot project like this:

    public void teleopInit() {
	// This makes sure that the autonomous stops running when
        // teleop starts running. If you want the autonomous to 
        // continue until interrupted by another command, remove
        // this line or comment it out.
        if (autonomousCommand != null) autonomousCommand.cancel();
    }
    /**
     * This function is called periodically during operator control
     */
    public void teleopPeriodic() {
        Scheduler.getInstance().run();
    }

Also you can verify that the commands are running by writing the Scheduler instance to the SmartDashboard as shown in this web page:
http://wpilib.screenstepslive.com/s/...and-subsystems

Brad

[gman]

We have the Scheduler.getInstance().run() in the code already. I tried the SmartDashboard thing, its says it's running. I have print statements in the execute() method, they running, but only once every 10-15 seconds.

[Arhowk]

Originally Posted by gman

We have the Scheduler.getInstance().run() in the code already. I tried the SmartDashboard thing, its says it's running. I have print statements in the execute() method, they running, but only once every 10-15 seconds.

Try deploying a blank SimpleRobot project with a print statement in the operator control method

[BradAMiller]

Originally Posted by gman

We have the Scheduler.getInstance().run() in the code already. I tried the SmartDashboard thing, its says it's running. I have print statements in the execute() method, they running, but only once every 10-15 seconds.

Can you put a print statement in the teleopPeriodic() method to see how often it (and Scheduler.run()) is getting called. It should be about every 20ms (50 times per second).

Brad