There's also the question as to id a particular radiation event matters or not. Suppose you have a space system that is taking pictures, storing them in on-chip memory, performing DSP on them, and shending them to Earth. If a radiation event causes a bit to flip in the middle of a 10megabit picture ... who really cares -- that will be filtered out by the DSP anyway -- so I probably woyuldn;t worry about protecing thsi memory
By comparison, if I have another block of on-chip memory that is storing my system flight parameters -- then I will use ECC, TMR, and memory scrubbing techniques to keep tha tdata pristine...
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used in Orion Spacecraft, part of NASA's Mars mission. Live radio show and live chat. Get your questions ready.
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