A low-cost programmable board for speeding-up fault injection in microprocessor-based systems

摘要

This paper desicribes a low-cost, programmable board suited to support the Fault Injection process for micropocessor-based embedded systems. Thje board monitors the processor bus and is able to count the number of executed instructions, and can therefore be used to trigger the execution of the failt injectioln procedure. Morevoer, the borard can be of great help in gathering the information about the failut-free system behavior required to implement the fault collapsing rules described in a previous paper. When integrated in a fault injection environment, the board allows to perform at-speed fault injection experiments with minimum intrustiveness, and to implement effective fault collapsing procedures.