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The integration of on-line monitoring and reconfiguration functions into a safety critical automotive electronic control unit.

Research output: Contribution to journalJournal article


Journal publication date08/2005
JournalJournal of Electronic Testing
Number of pages12
Original languageEnglish


This paper presents an innovative application of IEEE1149.4 and the Integrated Diagnostic Reconfiguration (IDR) method to an Automotive Electronic Control Unit implemented as a fully-integrated mixed-signal system. The IEEE1149.4 test structure has been embedded and used on-line for interconnect monitoring and signal analysis. This provides higher resolution failure diagnostics enabling localised fault compensation. A novel On-Line Monitoring architecture is presented, that supports real-time testing of the critical circuit nodes. The paper concludes that fault tolerance can be integrated into mixed-signal electronic systems to handle key failure modes.