Re: [Emc-developers] using the dummysig trick (was Re: pid with derivative inputs)

[Jon E. <el...@pi...>]

Stephen Wille Padnos wrote:
> There may be an argument that these functions shouldn't exist - an IC 
> doesn't know whether a pin is being used, 
That's not completely true.  There are things like weak holders and 
resistive pull-ups/
pull-downs and such tricks to get more than plain high/low logic level 
functionality.
Some of this stuff is used on FPGAs for various tricks before and during 
configuration.

Jon