Title :
Proton SEU test of MC68020, MC68882, TMS320C25 on the ARIANE 5 launcher on board computer (OBC) and inertial reference system (SRI)
Author :
Poivey, C. ; Notebaert, O. ; Garnier, P. ; Carriere, T. ; Beaucour, J. ; Steiger, B. ; Salle, J.M. ; Bezerra, F. ; Ecoffet, R. ; Cadot, B. ; Calvet, M.-C. ; Simon, P.
Author_Institution :
Matra Marconi Space, France
Abstract :
The ARIANE 5 on board computer (OBC) and Inertial Reference System (SRI) are based on Motorola MC68020 processor and MC68882 coprocessor. The SRI data acquisition board also uses the DSP TMS320C25 from Texas Instruments. These devices were characterized for proton induced SEUs. But representativeness of SEU test results on processors was questioned during ARIANE 5 studies. Protons test of these devices were also performed in the actual equipment with flight (or representative of) software. The results show that the OBC and the inertial reference system can satisfy the requirements of the ARIANE 5 missions
Keywords :
aerospace computing; computer testing; coprocessors; digital signal processing chips; integrated circuit testing; microprocessor chips; proton effects; space vehicle electronics; special purpose computers; ARIANE 5 launcher; MC68020 processor; MC68882 coprocessor; TMS320C25 DSP chip; inertial reference system; on board computer; proton SEU test; proton induced SEUs; single event upset; Cache memory; Coprocessors; Data acquisition; Digital signal processing; Error correction; Instruments; Performance evaluation; Protons; Registers; System testing;
Conference_Titel :
Radiation and its Effects on Components and Systems, 1995. RADECS 95., Third European Conference on
Conference_Location :
Arcachon
Print_ISBN :
0-7803-3093-5
DOI :
10.1109/RADECS.1995.509792
