CAN jags not working

[Alex698]

I had similar issues and it boiled down to not having the driver station enabling the cRIO, even while using the CAN example. If you are already enabling the cRIO, are you using 2CAN or serial? More information will be required, maybe a photo of the test setup?

[blackflame2996]

we are using serial.

[Alex698]

How long are your CAN cables?
Are you using a terminator on the last jaguar?
What device IDs are you using?
How fast is the loop for CAN? (remember serial is like 1/10th of the CAN bandwidth)
What firmware is on the cRIO and the jaguars?
You can Enum without being enabled, that's why I asked before.

[blackflame2996]

Originally Posted by Alex698

How long are your CAN cables?
Are you using a terminator on the last jaguar?
What device IDs are you using?
How fast is the loop for CAN? (remember serial is like 1/10th of the CAN bandwidth)
What firmware is on the cRIO and the jaguars?
You can Enum without being enabled, that's why I asked before.

all but the first are less than 6 in
yes
3 and 11
I don't know
latest firmware
yes, teleop is enabled

[Alex698]

OK, so just to verify:
You have something close to this?

Default 2012 robot project
Begin.vi:
Open2Motor VI -> CAN Jaguar -> Replace PWM drop-down with device IDs -> MotorRef

Teleop.vi:
MotorRef -> Loop[Motor control] -> CloseMotorRef

It may also help to try one jaguar, at a time.

[blackflame2996]

Yeah, that's what we have. by the way, i forgot to mention that when we try to move the motor, the jag's light blinks quicker.

[Alex698]

Originally Posted by blackflame2996

Yeah, that's what we have. by the way, i forgot to mention that when we try to move the motor, the jag's light blinks quicker.

What color does the jaguar blink?
If red or green, check to see if there is voltage on the M+ and M- outputs, if not the internal jaguar hardware is bad. The LED will blink because the CAN and PWM interface is isolated from normal jaguar functions in-case of a failure it can keep communication alive.

[slijin]

Originally Posted by Alex698

What color does the jaguar blink?
If red or green, check to see if there is voltage on the M+ and M- outputs, if not the internal jaguar hardware is bad. The LED will blink because the CAN and PWM interface is isolated from normal jaguar functions in-case of a failure it can keep communication alive.

Rapidly flashing yellow indicates that the CAN ID is invalid, not that hardware is damaged. Refer to Table 2-2 here for more details.

Have you correctly configured and updated the Jaguars with the BDC-COMM interface?