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 Back annotation Problem 

Last post Thu, Jan 3 2013 1:11 AM by fangxiaozhou. 11 replies.
Started by souparnika 22 Jun 2009 02:34 AM. Topic has 11 replies and 3063 views
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  • Mon, Jun 22 2009 2:34 AM

    • souparnika
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    Back annotation Problem Reply

    Hi,

     

    I am not able to back annotate to my dsn file.While back annotating one pin(power pin) is showing error and i m getting this error. Pls help me.

     

    #520 ERROR(SPCODD-520): FUNC_LOGICAL_PATH must be specified in line 3736 of pinView.dat

    ERROR(SPCODD-521): Cannot process pin R1 on pkg U11 connected to net.

    ERROR(SPCODD-507): Physical net name: VCC_1V8_DDR

    #1 Error [ALG0037] Unable to read physical netlist data.

    #2 Aborting Swap file creation... Please correct the above errors and retry.

    • Post Points: 20
  • Mon, Jun 22 2009 2:49 AM

    • C Shiva
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    Re: Back annotation Problem Reply

       May be this net name is not present or renamed in your design.  And check the component whether it renamed before you start backannotation

     

    • Post Points: 20
  • Mon, Jun 22 2009 3:38 AM

    • souparnika
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    Re: Back annotation Problem Reply

    Hi siva ,

     thank u for ur reply.

    I chked with the design. The part ref has changed in the pcb, and there are many other pins to which the same net is connected. and still i m getting the same error info.

     pls help

     

    • Post Points: 20
  • Mon, Jun 22 2009 4:00 AM

    • C Shiva
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    Re: Back annotation Problem Reply

     Can you attach the error list in text file. I will try to find...

    • Post Points: 20
  • Mon, Jun 22 2009 4:21 AM

    • souparnika
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    RE: Back annotation Problem Reply
    Hi siva,

    Thank u for your kind help.

    Pls find the attached file.

    Regards,
    sandhya
    • Post Points: 20
  • Mon, Jun 22 2009 8:15 AM

    • redwire
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    Re: RE: Back annotation Problem Reply

    Since you're in OrCAD it sounds like you changed the schematic and then attempted the backannotation.  This is not possible because the packager will get out of sync.  You might be successful if you go back and make the schematic match the board at the last forward annotation --- or manually fix the problem and make sure it does not happen again. :)

    • Post Points: 35
  • Mon, Jun 22 2009 8:29 PM

    • C Shiva
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    Re: RE: Back annotation Problem Reply

     Sandhya,

       Redwire is correct. Please check as per his instruction.

     Redwire,

       In the error list while importing schematics "No_connect" property found. But as per my experience, i also got same warnings many times, but didn't get any problem in board file. I think this is ignorable. What's your opinion?

    Regards,
    Shiva.

    • Post Points: 35
  • Mon, Jun 22 2009 9:04 PM

    • redwire
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    Re: RE: Back annotation Problem Reply

    The "No Connect" warning can be ignored.  What typically happens is that an engineer places a "no connect" symbol on a pin (which will alleviate DRC errors, and then later connects a net to the pin.  The "no connect" symbol disappears on the schematic page but the netlister still sees it telling you it's hiding underneath.  I always ignore those errors unless I am bored. :)

    • Post Points: 35
  • Mon, Jun 22 2009 9:13 PM

    • C Shiva
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    Re: RE: Back annotation Problem Reply

     Thanks redwire. I felt it as same. It is hiding underneath the pin. We can see it by double clicking on the pin. 

     Have a nice day... :-)

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  • Mon, Jun 22 2009 9:14 PM

    • souparnika
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    RE: RE: Back annotation Problem Reply
    Hi siva,

    Thank you.

    I will check and update it.

    Best regards,

    sandhya
    • Post Points: 5
  • Mon, Jun 22 2009 9:14 PM

    • souparnika
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    RE: RE: Back annotation Problem Reply
    Hi redwire,

    Thank you.
    I will check and update it.

    Best regards,

    sandhya
    • Post Points: 5
  • Thu, Jan 3 2013 1:11 AM

    Re: RE: Back annotation Problem Reply

    hi ,i met the same question and did't know how to find the source of the problem.

    when i tried to backannotation ,it always occured  the following  errors :

    #549 ERROR(SPCODD-549): No physical part found for COMP_DEVICE_TYPE=EP2C70F896_4_BGA896_EP2C70F896, regenerate the netlist to sync with Allegro board.
                  ERROR(SPCODD-516): Line Number: 13
    #1 Error   [ALG0037] Unable to read physical netlist data.
    #2 Aborting Swap file creation... Please correct the above errors and retry.

    • Post Points: 5
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Started by souparnika at 22 Jun 2009 02:34 AM. Topic has 11 replies.