Testing and monitoring of programmed devices

Details Testing and monitoring of programmed devices Testing and monitoring of programmed devices

1996-11-13

1998-05-19

Beausoliel, Jr., Robert W.

Boots, shoes, and leggings

39518307, 39518316, 36426791, G06F 1100

Patent

active

057547599

ABSTRACT:
A monitoring apparatus includes a programmable event filter (18) which identifies the occurrence of a predetermined signal (such as a memory address location) on a signal path of a programmed device such as a CD-i player. On detection, one or more successive bus signals are captured in a buffer (20) and subsequently written to storage (14) for processing by an internal processor (10) or the bus signals are sent over a bidirectional communications link (16) to a host device implementing suitable data processing algorithms. A particular use for the monitoring apparatus is in non-intrusive debugging of programmed devices taking account of their operating systems.

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Costella et al., "An Instrument For Concurrent Program Flow Monitoring In Microprocessor Based Systems", Publication Date: May 12-14, 1992, pp. 169-172. IEEE Instrumentation & Measurement Conference (New York).
Cheshir, "A Real-Time High-Level Language Debugging System", Thesis, Jul. 1994. The cooper union for the Advancement of Science and Art.
"Logic-analyzer Interface Assists in 68030 Program Debugging" by D. Atkins, EDN, Sep. 29, 1988, pp. 187-192.

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