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Configuring DxDesigner DRC (drc-121 Net Connectivity Consistency)

Question asked by Andreas.Schaefer on May 24, 2012
Latest reply on Nov 4, 2014 by robert_davies

Hi,

 

I want to confgure the DxDesigner RDC in a way to solve the following issue:

 

Find all nets, in our flat (not hirarchical) design that do not have an on/offsheet symbol connected to tehm and are are used on same or other page of the schematic.

Example:

  • On page 100 the SIGNAL_1 is connected on two places /different parts and has in both cases a corss reference symbol on the other side.
  • Additionally on page 100 the SIGNAL_1 is connected to two pins of other parts and has no cross referencer symbol connected
  • I configure the DRC-121 to find internal connection symbols (symbol names value is *sheet*) and select internal connections to check
  • The DRC finds the SIGNAL_1 on page100 with missing internal connection symbols error . Exactly the expected result.

 

Now it gets more complex:

  • as change to the above, the connection without crossreference is not on page 100.
    It has moved to page 110
  • I additionally configure the DRC-121 to find flat connection symbols (symbol  names value is *sheet*) and select flat connections to check
  • The DRC finds SIGNAL_1 on page110 as missing flat symbol on net error. This is, what I need.
  • Additionally, for every net which has a on/offsheet cross reference symbol but is not yet connetced to different pages but the same page
    I get a redundant flat symbol error message for the net. This is not what I want to see.

 

The last redundant flat symbol check is neither mentioned in the documentation nor I can configure it.

 

Does anybody know, how to get rid of those messages and only find the connectivity issues?

 

Kind regards,

Andreas

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