Dynamic Scheduling of Test Routines for Efficient Online Self-Testing of Embedded Microprocessors

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Executive Summary

This paper presents a self-testing framework targeting the LEON3 embedded microprocessor with built-in test-scheduling features. The proposed design exploits existing postproduction test sets, designed for software-based testing of embedded microprocessors. The framework also includes a constraint-based approach of test-routine scheduling. The initial results show that the test execution time could be dynamically scaled by the test selection algorithm. Software-Based Self-Test (SBST) and constraint-aware scheduling of testing patterns has attracted the attention of various researchers over the recent years.

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