Talon SRX Breakout Board

[afiolmahon]

Hello Ozrien I had a quick question. Our team wanted to be able to use an indexed encoder with the SRX closed loop PID for absolute positioning. We were able to breakout the index pin from this board by soldering directly to the headers contact, but weren't able to find a way to set this up on the software end. Is this use case supported, or does the closed loop PID not handle an absolute position indexed encoder?

We are currently using this encoder in our configuration.

[ozrien]

The Talon SRX counts the rising edges on the index pin and sends it over CAN using the Quad Status Frame (See section 20.3. Quadrature Encoder Status in software ref manual).

So if you wanted to react to the index pin, you'll have to track it yourself. I figured when you see a change in the index rise count you could re-zero your quad position.

So how exactly did you want to use the index pin? Is quad A/B decoding not sufficient?

[wireties]

What kind of current can the Talon sink/source from the data port. I didn't see the spec in the manual. I'm thinking of hooking up an infrared emitter/detector.

TIA