Tester for microprocessor-based systems

Details Tester for microprocessor-based systems Tester for microprocessor-based systems

1978-04-24

1980-01-15

Malzahn, David H.

Registers

Systems controlled by data bearing records

Time analysis

324 73AT, G06F 1100

Patent

active

041834593

ABSTRACT:
An automatic test apparatus coupled to a bit-directional internal data and control bus of a programmed microprocessor-based system tests the performance of the system in real time. Signal responses of the bus within a known good system are compared in real time to signal responses on the bus of an unknown system in order to identify faults. Faults are isolated by a sequential algorithm which stops operation at the occurrence of the first fault and thereupon traces the error to the subsystem or components supplying the indicated error signal to the bi-directional bus.

REFERENCES:
patent: 4001818 (1977-01-01), Radichel et al.
patent: 4044244 (1977-08-01), Fareman et al.
patent: 4045661 (1977-08-01), Antoine et al.
patent: 4066883 (1978-01-01), Wheeler, Jr.
Bisset "Exhaustive Testing of Microprocessors & Related Devices: A Practical Solution" 1977 Semiconductor Test Symposium pp. 38-41 Oct. 1977.
"3040A Logictester For Small MP Boards", Bulletin #105, Fluke Trendar, Mountain View, Ca. Jan., 1977.
"3040A Logictester Question & Answers", Bulletin #106, Fluke Trendar, Mountain View, Ca. Jun., 1977.

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