Invention Grant
US08640070B2 Method and infrastructure for cycle-reproducible simulation on large scale digital circuits on a coordinated set of field-programmable gate arrays (FPGAs)
失效
在一组协调的现场可编程门阵列(FPGA)上的大规模数字电路上进行循环再现仿真的方法和基础设施,
- Patent Title: Method and infrastructure for cycle-reproducible simulation on large scale digital circuits on a coordinated set of field-programmable gate arrays (FPGAs)
- Patent Title (中): 在一组协调的现场可编程门阵列(FPGA)上的大规模数字电路上进行循环再现仿真的方法和基础设施,
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Application No.: US12941834Application Date: 2010-11-08
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Publication No.: US08640070B2Publication Date: 2014-01-28
- Inventor: Sameh W Asaad , Ralph E Bellofatto , Bernard Brezzo , Charles L Haymes , Mohit Kapur , Benjamin D Parker , Thomas Roewer , Jose A Tierno
- Applicant: Sameh W Asaad , Ralph E Bellofatto , Bernard Brezzo , Charles L Haymes , Mohit Kapur , Benjamin D Parker , Thomas Roewer , Jose A Tierno
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Otterstedt, Ellenbogen & Kammer, LLP
- Agent Anne V. Dougherty
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
A plurality of target field programmable gate arrays are interconnected in accordance with a connection topology and map portions of a target system. A control module is coupled to the plurality of target field programmable gate arrays. A balanced clock distribution network is configured to distribute a reference clock signal, and a balanced reset distribution network is coupled to the control module and configured to distribute a reset signal to the plurality of target field programmable gate arrays. The control module and the balanced reset distribution network are cooperatively configured to initiate and control a simulation of the target system with the plurality of target field programmable gate arrays. A plurality of local clock control state machines reside in the target field programmable gate arrays. The local clock control state machines are coupled to the balanced clock distribution network and obtain the reference clock signal therefrom. The plurality of local clock control state machines are configured to generate a set of synchronized free-running and stoppable clocks to maintain cycle-accurate and cycle-reproducible execution of the simulation of the target system. A method is also provided.
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