Method for checking the reset function in an embedded processor

Details Method for checking the reset function in an embedded processor Method for checking the reset function in an embedded processor

2007-03-27

2007-03-27

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S010000, C714S055000

Reexamination Certificate

active

10393550

ABSTRACT:
A method for checking the reset function of an embedded processor is described. First, a check is made to see if a reset “flag” is not set (202) before branching to execute the test routine that initiates the embedded processor's reset (206). The test program sets the flag (204) before initiating the reset. When the processor resets and executes the test program from the beginning again, it determines that the flag was set (202), and it does not execute the reset instructions again.

REFERENCES:
patent: 6014758 (2000-01-01), Poisner
patent: 6438709 (2002-08-01), Poisner
patent: 1094382 (2001-04-01), None
“Register” “FPGA” Microsoft Computer Dicitonary (c) 2002. Microsoft Press.
IBM, “PowerPC Embedded Processors Apllication Note”; “PowerPC 40x Watch Dog Timer”; Jul. 7, 1998, Version 1.0; IBM Microelectronics Research Triangle Park; downloaded from http://www-3.ibm.com/chips/techlib/techlib.nsf/products/PowerPC—405CR—Embedded—Processor; pp. 1-13.

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