Fault capture/fault injection system

Details Fault capture/fault injection system Fault capture/fault injection system

1988-09-19

1991-02-26

Atkinson, Charles E.

Excavating

364200, 371 3, G01R 3128, G06F 1100

Patent

active

049966880

ABSTRACT:
Apparatus for detecting and isolating the occurrence of faults in a digital electronic system so as to reduce the mean-time-to-repair. Associated with the logic circuitry to be monitored is a fault indicator which produces a fault signal when a malfunction occurs. Fault capture circuitry is arranged in a hierarchical manner and provides a group fault output signal when one of the fault indicators generates a fault signal. A programmable controller is provided which receives the group fault signal as an interrupt and which then responds by transferring registered fault event signals to a dynamic string register, rearming the error detection used to trap a fault signal and logging the fault location in a memory for later readout by a maintenance processor or the like. The dynamic string allows communications to take place using a scan/set protocol.

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patent: 4661953 (1987-04-01), Venkatesh et al.
patent: 4669081 (1987-05-01), Mathews, Jr. et al.
patent: 4759019 (1988-07-01), Bentley et al.

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