Following errors after upgrade.

Yes, I agree its a bit too clever. Not sure if a component can know if a signal is driven, but you can check in a generic way for undriven signals and report these

cmorley wrote: Well I'd suggest using black magic rather then a switch for this PID behavior was the real problem.

Here is a description of how it is done.
sourceforge.net/p/emc/mailman/emc-develo...ver.net/#msg26519332

I don't think it can know if the signal has a driver.