Xilinx, Inc.

Arne S Barras

Rajeev Jayaraman

Jeffrey M Mason

Kate L Kelley

Method and apparatus for implementing a circuit design for an integrated circuit is described. In one example, a first version of the circuit design is processed () with at least one design tool. Statistical data is captured () for the at least one design tool and operational attributes thereof are automatically adjusted () in response to the statistical data. A second version of the circuit design is processed () with the at least one design tool having the adjusted operational attributes. In another example, the circuit design is processed () with at least one design tool in a first iteration. Statistical data is captured () for the at least one design tool and operational attributes thereof are automatically adjusted () for a second iteration in response to the statistical data of the first iteration. The circuit design is re-processed () with the at least one design tool having the adjusted operational attributes in the second iteration.

Method and apparatus for implementing a circuit design for an integrated circuit

Method and apparatus for incremental design is described. More particularly, a text-circuit description of the integrated circuit having logic groups of respective logic instances is obtained. Area groups are created for the logic groups and correspondingly assigned. Unchanged logic groups are guided on an incremental implementation from existing guide files, and changed logic groups are re-implemented in area groups corresponding to the changed logic groups. In this manner, runtime of the unchanged logic groups is reduced by an incremental guide implementation instead of a re-implementation, while performance of such unchanged logic groups is maintained from a prior implementation. Furthermore, degrees of freedom for re-implementing are enhanced for improving a design, as all prior mapping, placing and routing within a changed area group may be stripped for re-implementation.

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Longmont, CO, United States of America

Arne S Barras