Simulating circuit design on a circuit emulation system

Details Simulating circuit design on a circuit emulation system Simulating circuit design on a circuit emulation system

1995-08-30

1999-02-16

Teska, Kevin J.

Boots, shoes, and leggings

364490, 364578, G06F 1900

Patent

active

058729534

ABSTRACT:
A circuit transformation software module incorporating the teachings of the present invention is provided to an otherwise conventional emulation system. The circuit transformation software module takes a circuit design as input and transforms it into a "new" circuit design in accordance to a plurality of circuit primitive transformation rules of the present invention, which embodies a circuit state encoding scheme of the present invention. This "new" circuit design when "realized" on the otherwise conventional emulation system in a conventional manner, allows the original circuit design to be simulated on the emulation system, i.e., the response of the original circuit design under various unknown and uncertain conditions can be simulated. As a result, correctness of the original circuit design's responses under these conditions can be correctly ascertained. Additionally, reliability/accuracy of fault simulation results is improved. Furthermore, the present invention may be practiced in conjunction with physical and/or "emulating" emulation systems.

REFERENCES:
patent: 5448496 (1995-09-01), Butts et al.
"Satisfaction of Input and Output Encoding Constrainte" Salduuha et al., IEEE Trans. on Computer Aided Design . . . pp. 589-602, May 1994.
A. Jain et al., "Mapping Switch-Level Simulation Onto Gate-Level Hardware Accelerators", 28th ACN/IEEE Design Automation Conference, 1991.
E. W. Thompson, et al., "Digital Logic Simulation In A Time-Based, Table-Driven Environment", Part 2. Parallel Fault Simulation, Computer, vol. 8 No. 3, Mar. 1975.
R. Wieler, Z. Zhang, R. D. McLeod, Simulating Static and Dynamic Faults in BIST Structures with a FPGA Based Emulator, Proc. of the 4th International Workshop on Field-Programmable Logic and Applications, FPL94, Springer-Verlag, pp. 240-249.
R. Wieler, Z. Zhang, R. D. McLeod, Emulating Static Faults Using a Xilinx Based Emulator, 0-8186-7086-X/95, 1995 IEEE, pp. 110-115.

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