Usually I just append the voltage to the end of the name": VSS33 for 3.3 V, VSS18 for 1.8V, VCC5 for 5 volt, GNDA for Analog ground, etc. Just make sure your power pins are labelled as such, this mechanism works very well.
Greg ________________________________ From: Bernd Wiebus <[email protected]> To: [email protected] Sent: Monday, September 14, 2009 11:40:15 AM Subject: AW: Re: Sv: [kicad-users] beginner question: power for 7400 gates? Hello Anders. >>> "tom_iphi" <[email protected]> 2009-09-08 09:41 >>> >>And, what do I do if I have e.g. several different VCC levels (e.g. >>for CMOS) with some chips working on 5V and others on 12V? If all >>supply pins are auto-connected to the net VCC, this will be a >>problem.??? >cmos are usually labelled Vss and Vdd Of course, but i often use several different and clearly isolated "Vss" and "Vdd". At moment my workaround ist to set the pins to "passive" and do not use any erc testing and automatic hiding and connecting of pins or pads. With best regards: Bernd Wiebus > > - Anders Gustafsson > Engineer, CNE6, ASE > Pedago, The Aaland Islands (N60 E20) > www.pedago.fi > phone +358 18 12060 > mobile +358 40506 7099 > fax +358 18 14060 > > >>> "tom_iphi" <[email protected]> 2009-09-08 09:41 >>> > And, what do I do if I have e.g. several different VCC levels (e.g. > for CMOS) with some chips working on 5V and others on 12V? If all > supply pins are auto-connected to the net VCC, this will be a > problem.??? > > > > > ------------------------------------ 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
