talon srx SetVoltageRampRate disabling motor controllers

[Sparkyshires]

Yeah, I am. I'm setting them all to 1.0 for autonomous. do you maybe need to tell it to monitor a specific pdp port or something? I'm at a loss because supposedly it just works, and the documentation for this section of the software is lacking a bit for trouble shooting.

[FrankJ]

The Talon programing manual (pg. 63) implies the throttle range is 1023 to -1023. 1 is essentially 0? I know the joy stick output is 1 to -1 but maybe the gets scaled somewhere that is not obvious before being sent to the talon?

[wireties]

Originally Posted by FrankJ

The Talon programing manual (pg. 63) implies the throttle range is 1023 to -1023. 1 is essentially 0? I know the joy stick output is 1 to -1 but maybe the gets scaled somewhere that is not obvious before being sent to the talon?

We are passing -1.0 to 1.0 to the Set() function and using the SetVoltageRampRate() with no problems. It has to be something else.

Did you by chance set the limits to normally closed at some point and leave them that way? Check the status using the web interface and see if something looks goofy. What revision of the firmware is on the Talons?

[Sparkyshires]

Originally Posted by FrankJ

The Talon programing manual (pg. 63) implies the throttle range is 1023 to -1023. 1 is essentially 0? I know the joy stick output is 1 to -1 but maybe the gets scaled somewhere that is not obvious before being sent to the talon?

Nope, just like every other motor controller in FRC, the range is -1.0 to 1.0. Again, when I comment those four lines out it works perfectly with all it's sweet features. The talon SRX is a really amazing piece of electronics.

Did you by chance set the limits to normally closed at some point and leave them that way? Check the status using the web interface and see if something looks goofy. What revision of the firmware is on the Talons?

I'll get back to you this afternoon at around 4:45 once I get to our shop. Is there any specific setting that they have to be at? We're not wiring a limit switch in so I really haven't bothered with the NO or NC options in the web interface. Fingers crossed that that's it!

Also, would you mind posting your applicable code? Just so I can see if perhaps I'm missing some basic issue?

[Sparkyshires]

And I'm running hardware revision 1.4, bootloader revision 2.6, Firmware revision 0.28. And all of them are set to coast mode, and normally opened on both forward and reverse limit switch.

[ozrien]

Unrelated but......
Firmware 0.28? Did you read rule R59? You must update the Talons to be FRC-legal (1.1 or greater).

[Alan Anderson]

Originally Posted by ozrien

Unrelated but......
Firmware 0.28?

I'm not sure it's unrelated at all. The early firmware does not implement all the features of the current firmware (1.1-1.4).

[wireties]

Yeah, update to 1.1 or even better to 1.4 and try again.

[ozrien]

Hey, looks like there was a throttle-ramp fix back in 0.34. Cool (jeesh that was back in November) Forgot about that. Good thinking Alan.

So anyway, this is addressed to ALL teams : PLEASE UPDATE YOUR CAN DEVICES because...
-The ship firmware is not legal
-Updating them at the comp wastes a great deal of time.
-The legal firmware is what the control system team and beta teams have been using/testing.

Sparkyshires, please update your Talons.

[Sparkyshires]

Originally Posted by ozrien

Hey, looks like there was a throttle-ramp fix back in 0.34. Cool (jeesh that was back in November) Forgot about that. Good thinking Alan.

So anyway, this is addressed to ALL teams : PLEASE UPDATE YOUR CAN DEVICES because...
-The ship firmware is not legal
-Updating them at the comp wastes a great deal of time.
-The legal firmware is what the control system team and beta teams have been using/testing.

Sparkyshires, please update your Talons.

Oh my god, I feel like an idiot D: I updated the talons on our final, but not our prototype. Thank you so much! Sorry about this!