ISE 12 主要信息：设计保存Design Preservation Design Preservation is a flow for complex designs that preserves implementation results of a module for use in the next implementation iteration. Often, complex modules in the design are not changing but can be difficult to meet QoR requirements. Repeated time spent on these modules trying to maintain timing is not only frustrating but it is not productive. The Design Preservation flow solves this issue by allowing the customer to meet timing on the critical module(s) of the design and then re-use the implementation results in future iterations. This will reduce the number of implementation iterations while in the timing closure phase of the design and the amount of time in the verification phase. Design Preservation Software The Design Preservation flow utilizes Part……