Answers Database


Express does not preserve instantiated FMAP / HMAP / LUT primitives


Record #4395

Product Family: Software

Product Line: Synopsys

Product Part: FPGA Express

Product Version: 2.1.1

Problem Title:
Express does not preserve instantiated FMAP / HMAP / LUT primitives


Problem Description:
Urgency: Standard

General Description:
FMAP and HMAP primitive instantiations are ignored by Express. The corresponding logic is implemented properly. The same is true for Virtex LUT instantiations.


Solution 1:

Do not use FMAPs, HMAPs or LUTs in your HDL code; infer combinatorial logic and
FPGA Express will infer the gates and mapping information.

This issue will be addressed in an upcoming version of Express.




End of Record #4395 - Last Modified: 08/02/99 14:19

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