Memory emulation method and system for testing and troubleshooti

Details Memory emulation method and system for testing and troubleshooti Memory emulation method and system for testing and troubleshooti

1988-02-19

1989-09-19

Atkinson, Charles E.

Excavating

364200, G06F 1100, G01R 3128

Patent

active

048688223

ABSTRACT:
A method and system for testing and troubleshooting microprocessor-based electronic systems employs memory emulation techniques as well as other techniques to provide complete functionality tests and fault location. Fine-resolution sync pulses may be generated at preselected time positions during a bus cycle of interest to facilitate full troubleshooting fault isolation. Other features include bus testing using memory emulation techniques, using the chip select line of ROMs to encode test results, and techniques that keep a target microprocessor functioning in a system in which the kernel is dead.

REFERENCES:
patent: 4455654 (1984-06-01), Bhaskar et al.
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patent: 4674089 (1987-06-01), Poret et al.
patent: 4691316 (1987-09-01), Phillips
patent: 4740895 (1988-04-01), Sargent et al.
patent: 4780819 (1988-10-01), Kashiwagi
patent: 4785416 (1988-11-01), Stringer

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