We transferrd to a barnd new cortex controller today, using RobotC (v2.3)

We installed 3 quad encoders one after another in the first 6 digital ports, with other sensors filling the other digital ports. They were set up using the sensors/motors setup utility. The first and third encoder work normally by giving values in the debug window, but the second in ports(3,4) only gived back values of 0,1,-1.

We tried another encoder and tried swapping the wires around but no luck.

Any suggestions?

You mentioned that you tried another encoder, did you confirm that it was functional? For example, did you take one of the encoders plugged into ports 1 and 2, or 5 and 6, and see how it performs in ports 3 and 4?

Does spreading out the port sets you use for the encoder have any effect (1&2, 5&6, 9&10)?

The original encoder had been working properly in the v0.5 before we transferred it to the cortex, so we know it "was" working. We didn't check the second since we have never had issues with broken encoders. Will try your suggestion any way, thanks.

We changed the encoder in port 3&4 to another set of ports further down and it works now. It seems to be something weird in the cortex not liking 3 encoders next to each other in the ports.

Glad to hear you have a solution that's working. Thanks for posting your results. We'll take a look at recreating what you saw.

We haven't been able to reproduce this on our end, yet. Can you tell me what other sensors you had plugged in, and to which ports? Thanks!