Programmable fault injection tool

Details Programmable fault injection tool Programmable fault injection tool

1986-07-10

1988-07-19

Atkinson, Charles E.

Excavating

364200, 371 23, G06F 1122

Patent

active

047590190

ABSTRACT:
A programmable fault injection tool (PFIT) for the texting of the diagnostic capabilities of a computer or digital processing system is disclosed. The PFIT is made up of event compare hardware and error injection hardware.
The event compare hardware of the PFIT is user programmable through menu-driven software to compare a particular stored event, either a digital word or sequence of words, with an event measured within the system under test. The stored event can be changed by the user under program control so as to provide a generalized fault injection tool. In addition, the tool includes a mask memory that allows certain bits in a word to be masked, or ignored, when the state of the bit within the word is inconsequential.
The error injection hardware of the PFIT is controlled by the event compare hardware to inject faults by short circuiting voltage nodes within the system under test to ground or a supply voltage. The error injection hardware will inject the fault for a user specified time duration and only after a user specified time delay.

REFERENCES:
patent: 3257546 (1966-06-01), McGovern
patent: 3813531 (1974-05-01), King et al.
patent: 3961250 (1976-06-01), Snethen
patent: 4156132 (1979-05-01), Hazzard
patent: 4204633 (1980-05-01), Goel
patent: 4223382 (1980-09-01), Thorsrud
patent: 4308616 (1981-12-01), Timoc
patent: 4542505 (1985-09-01), Biroeder et al.
R. L. Cormier et al., Computer Fault Generator, IBM Technical Discl. Bulletin, vol. 11, No. 8, Jan. 1969, pp. 924-926.
J. N. Gaulrapp et al., Error Injector Tool, IBM Technical Discl. Bulletin, vol. 20, No. 8, Jan. 1978, p. 3286.
D. A. Ring, Protected Jumper Fault Instrument, IBM Technical Discl. Bulletin, vol. 22, No. 11, Apr. 1980, p. 4875.
Millham et al., Logical Assembly Testing System, IBM Technical Disclosure Bulletin, vol. 14, No. 11, Apr. 1972, pp. 3446-3449.
Chao et al., Fault Isolations in Shift Register Latches, IBM Technical Disclosure Bulletin, vol. 18, No. 4, 9/75, pp. 1065-1067.
Bossen et al., Model for Transient and Permanent Error Detection and Fault Isolation Coverage, IBM Journal of R&D, vol. 26, No. 1, Jan. 1982, pp. 67-77.
Tendolkar et al., Automated Diagnostic Methodology for the IBM 3081 Processor Complex, IBM Journal of R&D, vol. 26, No. 1, Jan. 1982, pp. 78-88.

Affiliated with

Also associated with

Rating

Programmable fault injection tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable fault injection tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable fault injection tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-601773