User Guide

Table Of Contents
The electrical rule check is based on these parameters. It will flag, for ex
-
ample, if two pins whose direction is out are connected. Please note that
the ERC can only offer warnings. You must interpret the messages
yourself.
The Pwr and Sup directions are used for the automatic connection of
supplyvoltages(seepage 192).
Swaplevel
The swaplevel is a number between 0 and 255. The number 0 means that
the pin cannot be exchanged for another pin in the same gate. Any
number bigger than 0 means that pins can be exchanged for other pins
which have the same swaplevel and are defined within the same symbol.
The pins can be swapped in the schematic or in the board with the
PINSWAPcommand.
The two pins of a resistor can have the same swaplevel (e.g. 1), since
theyareinterchangeable.
If the layer 93, Pins, is being displayed, the connection points on nets
are shown with green circles. The Direction and Swaplevel parameters
moreover(here Pas and 1)aredisplayedinthislayer.
The connections of a diode, for instance, cannot be exchanged, and are
thereforegivenswaplevel0.
TheSymbolEditor
164
EAGLEManual