Design of self-diagnostic boards by signature analysis

The authors present a single-faulty-chip diagnostic technique which requires only two reference signatures for any number of chips on the original board. With this technique, it is possible to reduce substantially the hardware overhead compared to the diagnostic technique based on separate testing of each chip on the board. The technique can be also used for identification of faulty printed boards in a system or for identification of faulty processors in a multiprocessor system.<
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