Programmable fault insertion circuit

Details Programmable fault insertion circuit Programmable fault insertion circuit

1989-07-31

1991-10-15

Beausoliel, Robert W.

Excavating

371 23, 364200, 364267, G06F 1100

Patent

active

050581120

ABSTRACT:
A fault insertion circuit is disclosed which generates and applies a fault signal to a digital circuit under test. The fault insertion circuit includes fault insertion hardware connected to the digital circuit under test. The fault insertion hardware is arranged to select, generate and apply the fault signal. A programmable controller and communication circuit are also included. The communication circuit is connected to the controller and to a data terminal, personal computer or any other source of programming commands and instructions. The communication circuit receives the programming commands and instructions from the data terminal and transmits the commands and instructions to the controller. The controller in response to the received commands and instructions transmits control signals to the fault insertion hardware, thereby, generating and applying a fault signal to the digital circuit under test.

REFERENCES:
patent: 3465132 (1969-09-01), Crockett
patent: 4669081 (1987-05-01), Mathewes
patent: 4759019 (1988-07-01), Bently
patent: 4835459 (1989-05-01), Hamlin
D. Crandall, "Error Generator for I/-O/P Device Attachment", IBM TDB, vol. 25, No. 6, 11/1982, pp. 3045-3049.
"SPD I/O Bus Error Injector and Detector", IBM TDB, vol. 30, No. 11, 4/1988, pp. 12-15.
P. East, "Error Injector for Testing a Data Processing Unit", vol. 17, No. 6, 11/1974, pp. 1691-1692.

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