Xilinx, Inc.

John A Canaris

Jorge Ernesto Carrillo

Lester S Sanders

Yong Zhu

Methods and systems for building a simulation for verifying a design block, including efficient coordination of the control and validation of the operation of a first and second bus of the design block, with the first bus being an interface bus of a processor. An interface description is determined for a bus functional model of the interface bus of the processor. The interface description includes a synchronization bus for coordinating the bus functional model and a hardware description language (HDL) testbench. A hardware specification is generated that couples the first bus of the design block with the interface description, and couples the HDL testbench with the second bus of the design block and with the synchronization bus of the interface description. The simulation for verifying the design block is automatically generated from the bus functional model and the hardware specification.

Building a simulation of design block using a bus functional model and an HDL testbench

Methods for designating target locations for circuit elements to be implemented in a programmable system. A target system is divided into blocks at various levels of hierarchy, with each block within the same higher-level block having a different identifier. A user can specify a desired location for a circuit element at any or all of these levels of hierarchy. Preferably, a desired location is specified using a single location constraint comprising a string of identifiers separated by delimiters. In one embodiment, a uniform coordinate system is applied to all blocks at a given level, even in a non-uniform programmable array. In this embodiment, a non-uniform array of logic blocks is divided into tiles, and a uniform coordinate system is applied to the tiles. Thus, any tile in the array can be addressed using a uniform coordinate system, regardless of the nature of the logic blocks comprising the tile.

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Albuquerque, NM, United States of America

John A Canaris