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A Constraint-Based Solution for On-Line Testing of Processors Embedded in Real-Time Applications

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5 Author(s)
Marcelo Moraes ; PPGC - Instituto de lnformática, UFRGS, Av. Bento Gonçalves, 9500 - Bloco IV, 91501-970 Porto Alegre - Brazil. +55 51 3316-6161, msmoraes@inf.ufrgs.br ; Erika Cota ; Luigi Carro ; Flavio Wagner
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Software-based self-test has been proposed as a low-cost strategy for on-line periodic testing of embedded processors. In this paper, we show that structural test programs composed only by regular deterministic self-test routines may be unfeasible in a real-time embedded platform. Hence, we propose a method to consciously select a set of test routines from different test approaches to compose a test program for an embedded processor. The proposed method not only ensures the periodical execution of the test, but also considers the optimization of memory and real-time requirements of the application, which are important constraints in embedded systems. Experimental results for a Java processor running real-time tasks demonstrate the effectiveness of the proposed solution

Published in:

2005 18th Symposium on Integrated Circuits and Systems Design

Date of Conference:

4-7 Sept. 2005