CAN Firmware Update Mandatory?

[wildaburk3160]

Now that the PMC firmware is updated, the Status light is flashing green. We have a solenoid being successfully activated by a button push on the controller.

But our compressor won't turn on. We've followed all the instructions as far as wiring goes, with the only deviance being that we used regular black and red wires instead of the green and yellow "CAN" wires.

We tested the Compressor Out ports on the PCM and we don't get any voltage back, even though the rest of the PCM seems to be working without a problem.

I am at a loss as to what the issue is. So, does anybody have any ideas?

[Mark McLeod]

You have a pressure switch wired in alongside the compressor outputs on the PCM?
The PCM won't try to power the compressor unless it can detect a pressure switch connection.

[wildaburk3160]

We do have a pressure switch wired in.

[Mark McLeod]

Is the CAN ID of the PCM set to 0?

[wildaburk3160]

I can't say for sure, because other programmers were the ones who upgraded the firmware. How would I be able to check?

[Mark McLeod]

Use a web browser and go to roboRIO-3160.local
You'll see PCM on the left, click on it and the CAN ID will be at the top of the resulting page.

[wildaburk3160]

I tried going to this address but only ended up doing a google search and not getting me anywhere.

Edit:

I realized I should probably have my roboRIO on. I turned it on and made it to the page. Yes, the CAN ID is 0.

[Joe Ross]

You can also verify firmware versions on the diagnostics tab of the driver station.

[mmaunu]

Do you have code that starts a compressor? In Java, you would construct a Compressor object in some initialization code and then call start() on that object in your autonomous or teleop code.

[RufflesRidge]

Originally Posted by mmaunu

Do you have code that starts a compressor? In Java, you would construct a Compressor object in some initialization code and then call start() on that object in your autonomous or teleop code.

That's not needed in 2015. Just construct a solenoid on the PCM and you should be all set code wise.

[cgmv123]

Originally Posted by RufflesRidge

That's not needed in 2015. Just construct a solenoid on the PCM and you should be all set code wise.

There is a separate Compressor class that can be used if there are no Solenoid objects created in code.