Report Number: CSL-TR-98-774
Institution: Stanford University, Computer Systems Laboratory
Title: Fault-Tolerant Systems in A Space Environment: The CRC ARGOS Project
Author: Shirvani, Philip P.
Author: McCluskey, Edward J.
Date: December 1998
Abstract: This report describes the ARGOS project at Stanford CRC.
The primary goals of this project are to collect data on
the errors that occur in digital integrated circuits in
a space environment, to determine the tradeoffs between
fault-avoidance and fault-tolerance, and to see if
radiation hardening can be avoided by using fault
tolerance techniques. Our experiments will be carried
out on two processor boards on the ARGOS experimental
satellite. One of the boards uses radiation-hardened
components while the other uses only commercial
off-the-shelf (COTS) parts. Programs and data can be
uploaded to the boards during the mission. This capability
allows us to evaluate different software fault-tolerance
This report reviews various error detection techniques.
Software techniques that do not require any special
hardware are discussed. The framework of the software
that we are developing for error data collection is presented.