对自己的设计的实现方式越了解，对自己的设计的时序要求越了解，对目标器件的资源分布和结构越了解，对EDA工具执行约束的效果越了解，那么对设计的时序约束目标就会越清晰，相应地，设计的时序收敛过程就会更可控。-The design of their implementations more understanding of the design of their timing requirements more understanding of the target device resource distribution and structure of the more understanding of the EDA tools for the implementation of the more understanding of the effect of binding, then the timing constraints of the design goals will be The more clear, accordingly, the design timing closure process will be more controllable.