ROM emulator for diagnostic tester

Details ROM emulator for diagnostic tester ROM emulator for diagnostic tester

1985-02-14

1987-09-01

Atkinson, Charles E.

Excavating

371 16, G01R 3128

Patent

active

046913165

ABSTRACT:
A diagnostic test system for microprocessor-based electronics systems comprises a computer and a ROM emulator for emulating the read only memory in the device under test which provides the microprocessor with its start-up operating program. The ROM emulator gains control of the microprocessor in the device under test and causes it to run a series of diagnostic tests which are controlled from the test unit. Unique capture logic circuitry in the ROM emulator permits test data to be read over the system address bus.

REFERENCES:
patent: 4315321 (1982-02-01), Parks, III et al.
patent: 4317199 (1982-02-01), Winslow
patent: 4433412 (1984-02-01), Best et al.
patent: 4450519 (1984-05-01), Guttag et al.
patent: 4455654 (1984-06-01), Bhaskar et al.
patent: 4484329 (1984-11-01), Slamka et al.
patent: 4489414 (1984-12-01), Titherley

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