Using NEXUS compliant debuggers for real time fault injection on microprocessors

• Autor(es): Fidalgo, André V. ; Gericota, Manuel G. ; Alves, Gustavo R. ; Ferreira, José M.
• Data: 2006
• Identificador Persistente: http://hdl.handle.net/10400.22/4293
• Origem: Repositório Científico do Instituto Politécnico do Porto
• Assunto(s): Fault injection; Real time systems; On-chip debug
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

As electronic devices get smaller and more complex, dependability assurance is becoming fundamental for many mission critical computer based systems. This paper presents a case study on the possibility of using the on-chip debug infrastructures present in most current microprocessors to execute real time fault injection campaigns. The proposed methodology is based on a debugger customized for fault injection and designed for maximum flexibility, and consists of injecting bit-flip type faults on memory elements without modifying or halting the target application. The debugger design is easily portable and applicable to different architectures, providing a flexible and efficient mechanism for verifying and validating fault tolerant components.