在sta 階段需要check的事項
- Design QA check
多餘的電路會影響area,routing resource,power等。
dumy port, 不正常的latch path, constant clock, leaf with no clock, clock with no leaf. Case analysis conflict.
也可以check 到是否有不正常的被tie值。
dumy port, 不正常的latch path, constant clock, leaf with no clock, clock with no leaf. Case analysis conflict.
也可以check 到是否有不正常的被tie值。
- Constraint QA check
完整的constraint 才能確保所有timing path都有被分析,且被正確的分析。
所有registers 都有constraint.
io 有constraint.
case/ muticycle/false path等exception path 都合理.
timing 條件設定正確:clock cycle / timing margin / wire load model / pvt 參數。
所有registers 都有constraint.
io 有constraint.
case/ muticycle/false path等exception path 都合理.
timing 條件設定正確:clock cycle / timing margin / wire load model / pvt 參數。
- Timing analysis
對所有corner 及所有種類的timing violation path 都進行check 是否合理。
Sync path/ clock gated check / multi cycle path / io path. / reset path/ lib defined timing path.
Sync path/ clock gated check / multi cycle path / io path. / reset path/ lib defined timing path.
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