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by rcxdude 34 days ago
What they have is surprisingly fragmentary. For the recent software issue, they had to be very conservative in what they changed because they aren't 100% sure about the details of the ISA on the actual spacecraft (due to amiguity between different revisions of the wiring of the CPU), and so they don't really have a simulator they can trust.
1 comments
joseda-hg 34 days ago
Maybe I'm used to think of NASA as this infinite budget agency, but considering Voyager's significance...

To me that souns like we should test all revisions of the CPU, not none of them

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rcxdude 34 days ago
NASA hasn't had infinite budget for a long time. They didn't even have it when they were building the voyager probes (they were the budget version of what they wanted to build).
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