FPGA configuration protection and control using hardware watchdog timer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7971051
APP PUB NO 20090085603A1
SERIAL NO

11905057

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus and method provides automatic reconfiguration of an FPGA, such as in case of lost configuration or configuration error, and software-controlled reconfiguration may be provided that does not require the use of additional devices. An apparatus for FPGA configuration protection comprises watchdog signal generator circuitry in the FPGA configured to output a watchdog signal when the FPGA is properly configured and watchdog circuitry configured to receive the watchdog signal and to initiate reconfiguration of the FPGA if the watchdog signal is not received for or within a predetermined time. The circuitry in the FPGA may be configured to receive a signal from a processor and to output the watchdog signal when the signal from the processor is received.

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Patent Owner(s)

  • FUJITSU LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Capellaro, Mark Danbury, US 2 70
Garcia, Arturo Tappan, US 86 1698
Paul, Steven Township of Washington, US 13 412

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