Repeatable results with design preservation

By Kate Kelley, Xilinx
pldesignline.com (June 08, 2010)

Increasingly, FPGA designs are no longer just the 'glue logic' of the past; they are becoming more complex every year, often incorporating challenging such as PCI Express cores.

The complex modules newer designs, even when not changing, can present difficulties when attempting to meet quality-of-result (QoR) requirements. Time spent trying to maintain timing in these modules is not only frustrating, but often unproductive as well.

The design preservation flow solves this issue by allowing the customer to meet timing on the critical module(s) of the design and then reuse the implementation results in future iterations. This reduces the number of implementation iterations in the timing closure phase of the design.

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