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Matched group - Analyze choses wrong pin pair target

Fredda

I have a matched group that seems to chose the wrong target pin pair when running the Analyze command. Is there a reason for not choosing the longest trace (DQ21)? See below screen capture.

By the way, how is the Delay column calculated?

/F

  • avant
    0 in reply to Fredda

    After I make these kind of changes, I run a database check. Otherwise, the changes are not implemented correctly. 

  • jc teyssier
    0 in reply to steve

    Warning with this solution:

    Without target, all nets or pin pair in match group will have same length.

    example: 1mm; everyone will be between 1mm from all others maximum

    With target, all nets or pin pair in match group will have same length RELATIVE to the target

    So if a net is +1mm from target and an other one -1mm from target, then some nets can be 2mm from them in length.

    This is not the same result

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