Serial testing of removable circuit boards on a backplane bus

Details Serial testing of removable circuit boards on a backplane bus Serial testing of removable circuit boards on a backplane bus

1991-03-05

1992-07-21

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 731, 371 151, 371 223, 371 27, G01R 1512, G06F 1104

Patent

active

051326353

ABSTRACT:
A system for controlling daisy-chain testing of removable printed circuit boards installed along a backplane bus facilitates the use of serial testing methods for circuit boards which are designed according to boundary-scan testing standards. The system automatically controls propagation of serial test data from a serial data pattern generator to a removable circuit board and then from circuit board to circuit board as installed consecutively along the backplane bus, and from the last circuit board installed on the bus to a pattern comparator which determines whether the pattern matches an expected pattern to isolate components on the circuit boards which are not functioning properly.

REFERENCES:
patent: 3854125 (1974-12-01), Ehlinget al.
patent: 4176780 (1979-12-01), Sacher et al.
patent: 4736374 (1988-04-01), Kump et al.
patent: 4963824 (1990-10-01), Hsieh et al.
patent: 5004978 (1991-04-01), Morris, Jr. et al.
Evanczuk, "IEEE 1149.1, A Designer's Reference", High Performance Systems, pp. 52-60, Aug. 1989.
McClean, Banerji & Whetsel, "Bringing 1149.1 Into the Real World", High Performance Systems pp. 61-70. Aug. 1989.
Hansen & Rosenblatt, "Handling the Transition to Boundary-Scan for Boards", High Performance Systems, pp. 74-81, Aug. 1989.

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