Distributed logic analyzer for use in a hardware logic...

G - Physics – 06 – F

Patent

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Details

G06F 11/25 (2006.01) G01R 31/3177 (2006.01) G01R 31/3185 (2006.01)

Patent

CA 2291257

A hardware emulation system is disclosed which reduces hardware cost by time- multiplexing multiple design signals onto physical logic chip pins and printed circuit board. The reconfigurable logic system of the present invention comprises a plurality of reprogrammable logic devices, and a plurality of reprogrammable interconnect devices. The logic devices and interconnect devices are interconnected together such that multiple design signals share common I/O pins and circuit board traces. A logic analyzer for a hardware emulation system is also disclosed. The logic circuits necessary for executing logic analyzer functions is programmed into the programmable resources in the logic chips of the emulation system.

L'invention concerne un système d'émulation de matériel permettant de réduire le coût du matériel en effectuant le multiplexage dans le temps de différents signaux sur les broches physiques de microplaquettes logiques et sur une carte à circuit imprimé. Le système logique reconfigurable de la présente invention comprend plusieurs dispositifs logiques reprogrammables, ainsi que plusieurs dispositifs d'interconnexion reprogrammables. Ces dispositifs logiques et ces dispositifs d'interconnexion sont interconnectés les uns aux autres, de sorte que les différents signaux partagent les mêmes broches d'entrée/sortie et les mêmes rubans de carte imprimée. L'invention concerne également un analyseur logique pour système d'émulation de matériel. Les circuits logiques nécessaires à l'exécution de ces fonctions d'analyseur logique sont programmés dans les ressources programmables des microplaquettes logiques de ce système d'émulation.

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