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 How to edit the footprint in PCB board 

Last post Thu, Dec 6 2012 5:07 AM by Luc S. 15 replies.
Started by AamirZ 14 Oct 2012 09:42 PM. Topic has 15 replies.
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  • Sun, Oct 14 2012 9:42 PM

    • AamirZ
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    How to edit the footprint in PCB board Reply

    Hi every one

    I have routed PCB board  .brd file (no schematic). I want to edit some components footprint like capacitor and diode place on the board have no polarity. Any body have knowledge about the procedure to edit the already placed and routed footprints.

     Regards

    Aamir 
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    • Post Points: 20

  • Mon, Oct 15 2012 11:56 PM

    • Bonz
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    Re: How to edit the footprint in PCB board Reply
    Edit the footprint then in PCB Designer, from the toolbar click Place and then Update symbols. Check the packages you want to update and review the options, then click refresh.
    • Post Points: 20

  • Tue, Oct 16 2012 2:30 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply

     Thnaks Bonz

    One thing more I have only .brd file no components library. Can you describe the step by step procedure from open the .brd file in ORCAD, generate library, edit the component, and replace the component.

    Another thing I export the library but guide me where this library is place to interface with .brd file.

     Aamir

    • Post Points: 20

  • Tue, Oct 16 2012 2:35 AM

    • Bonz
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    Re: How to edit the footprint in PCB board Reply
    So, you've created the component footprints on the board, not as 'symbols' if I understand correctly. I don't know what sort of size or complexity your board is; I would recommend that you work through a tutorial like the one here: http://userweb.eng.gla.ac.uk/john.davies/orcad/pcbdesigner.pdf If you complete this tutorial and are still having issues or I've misunderstood, let me know! Hope it helps.
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  • Tue, Oct 16 2012 5:26 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply

     Thanks for your the link. I have a this book, but not completely guide me about my problem. I sovle the problem with the help this book "Complete PCB Design Using OrCAD Capture and PCB Editor-VINY.pdf" this is very helpful.

     
    • Post Points: 5

  • Tue, Nov 20 2012 5:32 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply
    I have a PCB *.BRD file. No schematic no netlist. On board 03 D2PAK footprint placed U28, U29, U30. I want to replace a only U29 footprint D2PAK with To263-3. Any body know the procedure to replace the footprint without schematic and netlist.
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  • Tue, Nov 20 2012 6:04 AM

    • DawnC
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    Re: How to edit the footprint in PCB board Reply

    If it were me... 

    1)  Save a copy of the brd

    2) File export placement

    3)  edit the placement.txt file created.  Find U29 and update the footprint to what you want.

    4) import the updated placement.txt back into the brd file.

     

    hope that helps.
    • Post Points: 20

  • Tue, Nov 20 2012 6:31 AM

    • Bonz
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    Re: How to edit the footprint in PCB board Reply

    I'm unsure why it should be any different than placing the D2PAK. Nonetheless...

    Dawn proposes a simple solution (though I can't vouch for its success because I've never done it).

    If it were me, I'd delete U29, place a TO263 then go to the toolbar within PCB Designer to "Logic > Assign RefDes", specify U29 in the options panel and left click on the new TO263 package.
    • Post Points: 20

  • Tue, Nov 20 2012 6:38 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply

    Thanks Bonz, when i do your define process following error is shown

    For refdes 'U29' symbol 'TO263-3' is not legal for placement layer. Check ALT_SYMBOL and ALT_SYMBOL_HARD property settings. 
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  • Tue, Nov 20 2012 6:48 AM

    • Bonz
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    Re: How to edit the footprint in PCB board Reply
    Yeah, forgive me... I've just tried it myself. I think I've just given you some duff information to be honest. I don't get the same problem as you. I can place, but just can't change the RefDes. It appears I need the RefDes in the netlist in order to assign one. Hope you're a little bit closer though :)
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  • Tue, Nov 20 2012 7:01 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply
    OK Bonz no problem i think you peoples understand my problem
    • Post Points: 5

  • Tue, Nov 20 2012 7:19 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply
    Dawn I do your process. I export placement file, delete U29, change D2PAK with TO-263-3 in placement file, import placement file nothing happen but when I change D2PAK again, import file again it place D2PAK with REFDES U29. I Think I do some wrong kindly correct me.
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  • Tue, Nov 20 2012 7:39 AM

    • DawnC
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    Re: How to edit the footprint in PCB board Reply

    Do you have the TO-263-3 footprint defined?  A quick test, do a Place Manual (Advanced tab make sure "librry" is selected).  Placement List pull down to Package Symbols.  Do you see the TO-263-3?
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  • Tue, Nov 20 2012 7:55 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply
    Yes DAWN TO263-3 is see in placement list and place on the board
    to263-3.png
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  • Tue, Nov 20 2012 7:58 AM

    • AamirZ
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    Re: How to edit the footprint in PCB board Reply
    It is shown as attached picture. 1.PNG is the figure of U29 which i want to replace with TO263-3
    1.png
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Started by AamirZ at 14 Oct 2012 09:42 PM. Topic has 15 replies.