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  1. #1
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    Route 455: CLK Net may have excessive skew

    While implementing designs such as counters I get warning such as Route 455: CLK Net may have excessive skew . I am not using any constraint file.

    Can that be reason? In that case can I ignore this??

    •   Alt12th June 2017, 15:58

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  2. #2
    Advanced Member level 5
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    barry's Avatar
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    Re: Route 455: CLK Net may have excessive skew

    You may not be using a clock buffer, and that's causing the message. But why aren't you using a constraint? You may end up with a design that only runs at 60Hz.



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