Once the design has been synthesised, these constraints and the critical path information will automatically be forward-annotated to the Vivado Design Suite place-and-route tools to further ensure that timing will be met. The constraints communicate your design intent and the design’s performance goals to the synthesis tool. The biggest bang for your buck will come from specifying correct and complete design constraints. It is worth taking a closer look at some of these techniques in all three categories, and considering how to use them to achieve your timing goals. Correlation of synthesis and place-and-route timing to deliver better timing quality-of-results (QoR) and timing closure.
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