Output not updated often enough

Technical Java
1

So I am using command-based programming. I have a cliche tankDrive command class which calls a tankDrive method of my chassisSubsystem class. Pretty straightforward. When I call any method of the RobotDrive class, everything works fine. However, when I call one of the CANJaguar’s that I passed into the RobotDrive constructor individually, I get the following message:

[cRIO] Robot Drive… Output not updated often enough.

Here is the exact method I call:



leftMotor.setX(470);

(I am using the speed control method, and 470 is what gets the jaguar to output 12V. I have tested the speed encoder, which works fine).

Can anyone help me? Thank you so much in advance!

2

It means exactly what it says. You have to update the outputs often enough or they won’t function. It’s a safety device built into the WPILib and the cRIO.

As for how to fix it, I’m not sure, as I can’t see all of your code and I’m not familiar with the CANJaguar and RobotDrive classes.

3

This is a function that is repeatedly called by a command every few milliseconds. That’s not often enough? Would I have to call the setX commands more often?

4

Use Timer.getFPGATimestamp(); to verify your loop timings.

5