一旦了解了设计规划策略涉及的各种复杂的折中,设计规划策略就成了常识。获得这种直观了解的一种方法就是领会优秀设计规划的一些经验法则。这些切实可行的经验法则来自于处理布局规划和电源规划问题的日常经验。熟练掌握设计规划可以帮助你预防费时的反复设计和芯片重复加工。对于具有分级设计流程的大型芯片来说,由于其更可能具有很长的模块间路径,而这些路径的延迟导致无法实现时序收 Once you understand the complex compromises involved in design planning strategies, designing planning strategies becomes common sense. One way to gain this intuitive understanding is to learn some rules of thumb for good design planning. These rules of thumb come from the day-to-day experience with layout planning and power planning issues. Proficiency in design planning can help you prevent time-consuming iterative design and chip duplication. For large chips with a hierarchical design flow, because they are more likely to have very long inter-module paths, delays in these paths result in failure to achieve timing