Event-driven emulation system
US7970597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2008 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/261
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit emulator includes emulation resources programmed to emulate a circuit, a clocking system for clocking logic implemented by the emulation resources, a resource interface circuit, a logic analyzer, and a debugger. The resource interface circuit supplies input signals to the emulation resources, stores data representing behavior of signals generated by the emulation resources produces in response to the input signals and configures operating characteristics of the clocking system. Upon detecting a specified event in the selected signals of the emulation resources, the logic analyzer asserts a trigger signal telling the clocking system to stop clocking the emulation resources. Communicating with the resource interface circuit and the logic analyzer via a packet routing network, the debugger acquires and processes the data stored by the resource interface circuit and transmits commands to the resource interface circuit and the logic analyzer specifying clocking system operating characteristics, controlling signal data transfer to the debugger, and defining the signal events the logic analyzer is to detect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.