Talon SR Help

[Ether]

I don't have any test data to back this up, but I'd bet that the performance and linearity of the VictorSP is very similar to the TalonSR. There may even be more variation in the CIMs than those two controllers. I'd say go for it.

[ozrien]

I'd expect a Talon SR and Victor SP to have very close response as long as you calibrate.

When your Talon SR is "not going in reverse" what are the Talon LEDs doing? Are they red (solid if 100% reverse, blinking if less than 100%).

[GeeTwo]

Originally Posted by ozrien

When your Talon SR is "not going in reverse" what are the Talon LEDs doing? Are they red (solid if 100% reverse, blinking if less than 100%).

Normally, I'd check these first. However, as OP believed that the problem was in the Talon, I recommended tests that would rule the talon in or out as the issue. If the issue is within the talon, the lights might give the expected results (red/green/blinking) if the problem is on the power amplifier/output side of the LED test point, and unexpected results (I won't speculate) if it is on the PWM/input side of the LED test point. In either case, if it's inside the Talon, it's beyond the capability of most FRC teams to repair.

[ozrien]

Originally Posted by GeeTwo

Normally, I'd check these first. However, as OP believed that the problem was in the Talon, I recommended tests that would rule the talon in or out as the issue. If the issue is within the talon, the lights might give the expected results (red/green/blinking) if the problem is on the power amplifier/output side of the LED test point, and unexpected results (I won't speculate) if it is on the PWM/input side of the LED test point. In either case, if it's inside the Talon, it's beyond the capability of most FRC teams to repair.

correct. I thought that was obvious when I asked the question.

[GeeTwo]

Originally Posted by Ether

I don't have any test data to back this up, but I'd bet that the performance and linearity of the VictorSP is very similar to the TalonSR. There may even be more variation in the CIMs than those two controllers. I'd say go for it.

Yes, from some clues in the wpilib, the Victor SP and Talon SR seem to use the same nominal timing-to-voltage curves, and you'd stand a pretty good chance at getting away with it, especially if these were two motors on the same gearbox as opposed to two separate mechanical trains you were trying to synchronize with open loops. In any case, do not wye a PWM output between a jaguar and anything else - bad joojoo.

Originally Posted by wpilib documentation

The Talon and Victor controllers use typical hobby RC controller timing of 1ms to 2ms and the Jaguar uses an expanded timing of ~.7ms to ~2.3ms. (link)