Hierarchical, network-based emulation system

Details Hierarchical, network-based emulation system Hierarchical, network-based emulation system

2006-07-04

2006-07-04

Jones, Hugh (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Emulation

In-circuit emulator

C703S021000, C716S030000

Reexamination Certificate

active

07072825

ABSTRACT:
An apparatus for emulating the behavior of an electronic device under test (DUT) includes a computer and one or more resource boards containing emulation resources suitable for emulating portions of the DUT. Each resource board includes transaction device for communicating with one another and with the computer network via data packets transmitted over a packet routing network. The packet routing network and the transaction device on each resource board provide “virtual signal paths” between input and output terminals of resources mounted on separate resource boards. To do so, a transaction device on one resource board sends packets containing data indicating output signal states of local emulation resources to a transaction device on another resource board when then drives signals supplied to input terminals of its local emulation resources to the states indicated by the data conveyed in the packet. When the workstation is to emulate a portion of the DUT, the packet routing network also provides virtual signal paths between the workstation and the resource boards. The computer also transmits programming data to the emulation resources via the packet routing network.

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patent: 6377911 (2002-04-01), Sample et al.
patent: 6754763 (2004-06-01), Lin
patent: 2003/0144828 (2003-07-01), Lin
patent: 2003/0182641 (2003-09-01), Yang

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