Jaguars are blinking yellow

[Alan Anderson]

Originally Posted by ColonelThrtyTwo

Here's my test code, in Java:

    Jaguar jag = new Jaguar(2,1); // Module 2, channel 1

...I can't think of anything else we could be doing wrong...

And now I see it. This year, the module numbers don't represent which slot the module is installed in. The first analog module is #1, and the first digital module is #1, and the first solenoid module is #1. You're telling the code to control something on the second digital module, which is probably not what you want it to do.

[Roceres]

I am having a similar issue, but I am using Labview - there's a yellow light on Jaguar and putting a meter on the signal pin there seems to be no pwm signal. To test the motors and the Jaguar I ran one of the FRC examples provided in the help menu. It looks like everything is connected properly; I have also fixed my DB37 cable. I have not connected the Robot Signal light and not sure how that plays a role.

To eliminate the Jaguar as an issue, we connected up a simple servo to the side-car and ran the simple Labview Servo example - we got the same results. It seems we are getting no PWM signal from the digital side car.

[DavidGitz]

Originally Posted by Roceres

...

Besides following all the troubleshooting steps in this thread, make sure that in LabView you are referencing the Digital Module #1. Module != Slot.

The Robot Signal Light (or RSL) is a useful tool for troubleshooting. As Alan stated earlier, check to make sure the RSL itself (when installed) or the LED's on the Digital SideCar are blinking correctly as referenced in his comment.

[Roceres]

I will look at the RSL this weekend when our team meets. This is the Blink Pattern I found from a post from last year. Is this correct?

* Fast Blink = cRIO not communicating with Driver Station
* Slow Blink = disabled
* Short on/long-off Blink = either low battery or no code & disabled
* Long on/short off blink = Teleop mode
* Solid on = Autonomous mode

In addition, is it necessary to have the driver station operating? We haven't installed it yet and thought it was unnecessary if we weren't running the entire robot, just the simple servo or motor examples provided. If we need the driver station, are the disable/enable buttons on the driver station display disabling the PWMs somehow through the digital sidecar? That could explain our problem.

[Joe Ross]

Originally Posted by Roceres

In addition, is it necessary to have the driver station operating? We haven't installed it yet and thought it was unnecessary if we weren't running the entire robot, just the simple servo or motor examples provided. If we need the driver station, are the disable/enable buttons on the driver station display disabling the PWMs somehow through the digital sidecar? That could explain our problem.

Yes it is necessary to use the driver station and enable. All outputs are disabled unless the driver station is communicating with the robot and enabled.

[ColonelThrtyTwo]

Originally Posted by Alan Anderson

And now I see it. This year, the module numbers don't represent which slot the module is installed in. The first analog module is #1, and the first digital module is #1, and the first solenoid module is #1. You're telling the code to control something on the second digital module, which is probably not what you want it to do.

Ah thanks for that, this solved it.