The ERC rules are there to help avoid errors. In some cases the rules are a bit of a pain, especially when using uPs that can change the pin function. However even there setting a pin to I/O is usually better than setting it to passive.
All that the rules are saying is that one type of pin should be connected to pins of a particular type. It prevents silly things like when a line snaps to a pin that you were not aiming for :-) Use ERC or not, it's up to you, but I find it gives a nice sanity check. Also don't forget that some designs might be using dozens of chips, where the chance of a mistake is greater. Andy On Wed, 21 Oct 2009 21:58:39 -0000 "David" <[email protected]> wrote: > Hi, > I read a lot of posts in this forum about ERC errors produced by EESchema ERC > function. Why do people waste so much time trying to find out why EESchema > produces these errors instead of relying on basic electrical first > principles? When I'm drawing a schematic I set all pins that cause me > problems (in EESchema) to passive. Instead I rely on a thorough study of any > device data sheets and Kirchoffs laws/electrical principles. I can understand > if someone has not had any electronics training/experience but surely the > designer of the circuit, i.e you, have a better understanding of how things > should be connected. > Sorry for the rant. > > David. > > > > ------------------------------------ > > Please read the Kicad FAQ in the group files section before posting your > question. > Please post your bug reports here. They will be picked up by the creator of > Kicad. > Please visit http://www.kicadlib.org for details of how to contribute your > symbols/modules to the kicad library. > For building Kicad from source and other development questions visit the > kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups > Links > > >
