Re: Encoder fixed in WPILib 2011?
 

I wrote a (fairly quick) VI that takes A phase, B phase, and count scaler and outputs a working encoder. It creates the dummy using the same channels on slot 6, then creates the real one on slot 4. It assumes 1x decoding since that's what we use.

I haven't tested it heavily (still working on mechanism tuning, we haven't tuned the drivetrain yet), so I am hesitant to post it here.

Quick answer:
Create one on slot 6 and one on slot 4. Since we don't use slot 6, that solves all of our problems.

Re: Encoder fixed in WPILib 2011?
 

If you instantiate the DigitalInputs first, then pass those into the encoder constructors, you will not get the errors. The errors happen when the encoder tries to construct DigitalInputs for the same channels more than once.

By the way, I found that it is not always the second (odd) decoder that works.

See this thread.

In 4x mode, the 2 odd ones work. In 2x or 1x mode, the first 3 even ones work and the last one (odd) works.

-Joe

Re: Encoder fixed in WPILib 2011?
 

Joe,
We got it. It was encoders #1, 3, 5 and 8 that worked. Should have checked this thread before trial and error! This is so illogical, but good it is consistent.

We did have to use different distinct channels for all four dummy encoders. But that's ok.

Re: Encoder fixed in WPILib 2011?
 

Is it possible to set the dummy to a slot besides 6 or 4 that are meant for the Digital Side Car? This year my team is using 2 digital side cars so it would be nice to set it to an unused slot.

Re: Encoder fixed in WPILib 2011?
 

You don't need to use a different slot at all... read this post. Construct the DigitalInputs first.

-Joe

Re: Encoder fixed in WPILib 2011?
 

Sorry about that, unlike me to not notice that post.