THE LENA ASIC: EMULATING AN OBSOLETE PROCESSOR

摘要

From 10 years, CNES and his partners TAS andAstrium have developed and flown with great success aserie of microsatellites (Demeter, Parasol, Picard etc..) ,which avionics is based onto a central OBC computer.The OBC is built around a central transputer IMST805processor, which is now obsolete: the strategicprocurement lot done at the beginning of the project istoo old now for Quality insurance reasons.The paper describes the LENA ASIC (Logic Emulationfor New Architectures) and the approach taken at CNESfor the replacement of the Transputer T805 used forMyriade OBC computer to allow production of newmicrosatellites at a low cost in the next decade.