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HK: Fachverband Hadronen und Kerne

HK 53: Accelerators and Instrumentation II

HK 53.8: Vortrag

Mittwoch, 18. März 2009, 15:45–16:00, H-ZO 90

Fault-tolerant Logics for FPGA Linux — •Jano Gebelein, Norbert Abel, and Udo Kebschull — Kirchhoff-Institute for Physics, University of Heidelberg

The increasing use of SRAM-based reconfigurable architectures at important areas of research and development (like particle accelerators and space applications) brings new, currently partially unattended effects on top. An already well known, but nevertheless important problem of such systems is its susceptibility to radiation which increases in conjunction with particle flux and energy. Regarding to current knowledge, errors induced by Single Event Upsets (SEU) and Single Event Transients (SET) are handled exclusively in hardware by the use of spacial and temporal redundancy features. Our field of research is to extend conventional fault tolerance to multiple layers of embedded computer systems, starting with the FPGA bit layer and ending up in the software application layer to get a maximum of radiation tolerance in systems running FPGA Linux in radiation susceptible environments. Only a collaboration of all these layers is able to create an adequate amount of data security and process integrity.