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To avoid setup time violations:

  • The combinational logic between the flip-flops should be optimized to get minimum delay.
  • Redesign the flip-flops to get lesser setup time.
  • Tweak launch flip-flop to have better slew at the clock pin, this will make launch flip-flop to be fast there by helping fixing setup violations.
  • Play with clock skew (useful skews).

To avoid hold time violations:

  • By adding delays (using buffers).
One can add lockup-latches (in cases where the hold time requirement is very huge, basically to avoid data slip).
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11y ago

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