I have used net names of my power symbols for various pins. Running DRC I see below messages. How can I get rid of such messaes?
INFO(ORCAP-2212): Check Power Ground MismatchQUESTION(ORCAP-1589): Net has two or more aliases - possible short? U18,PVIN PVIN DDR1V8 SCHEMATIC1, 05-DDR2 & GP Flash (106.68, 185.42)QUESTION(ORCAP-1589): Net has two or more aliases - possible short? U18,VDDQ VDDQ DDR1V8 SCHEMATIC1, 05-DDR2 & GP Flash (106.68, 175.26)QUESTION(ORCAP-1589): Net has two or more aliases - possible short? U16,VDD VDD DDR1V8 SCHEMATIC1, 05-DDR2 & GP Flash (241.30, 22.86)QUESTION(ORCAP-1589): Net has two or more aliases - possible short? U16,VDD VDD DDR1V8 SCHEMATIC1, 05-DDR2 & GP Flash (243.84, 22.86)
Any comment would be appreciated.
Thanks in advance,
Engineer PCB Design.
In reply to Dhamodharann:
I have checked it many times. There is no mistake with the Schematic. I have some parts with various power pin names(VDDQ, PVIN,..) :accordingly, I made my part pins. I have to use a one power label for these pins and here the problem arises, when I run Physical check in DRC it displays those mentioned messages, Hope it makes sense!.
In reply to Hossein1357:
Try to use Edit->Browse->Nets to see how many aliases your nets have
In reply to tltoth:
I also have this problem and I do not see any issue with my design either.
Browsing the DRC, I see other names have been attached to the concerned power nets. Those "alternative" and confusing aliases that trig errors reflect power pin names.
My feeling is that, whenever OrCAD finds a power port, it attaches a tag to the power net it connects to or, better, it tries to rename the power network with pin names, generating more than one net aliases. Later, when running DRC, it will complain about this.
Is my suspect correct? How do I eventually remove this annoying option?
In reply to Franco Maggi:
In reply to steve:
Sorry, my mistake - I misread your question. You have three options, Rename the Pin Name to match the actual voltage you have associated to the power symbol, turn off that DRC check or waive the DRC once you have checked it. You can use the Power Pin name to make the connections for you - this way you don't have to wire them all up. There's pro's and cons for both methods.