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A comment on The CPUs of Spacecraft Computers in Space. Parent comment

Re:The CPUs of Spacecraft Computers in Space by mhh__ on Friday December 18, 2020 @09:01PM (#25474307)
> Starlink with Xilinx FPGAs, while NASA and DoD are still baselining new platforms on incredibly expensive (albeit rad-hard) PowerPC RAD750 and similar.

Ignoring that Starlink isn't very far away, I would assume NASA stuff would also have FPGAs and ASICs on them - they aren't CPUs and aren't used like them.

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Re:The CPUs of Spacecraft Computers in Space by johnwalkr on Saturday December 19, 2020 @12:41AM (#25475382)
It’s pretty common in space to implement a soft core CPU (or redundant ones) on a space-grade FPGA.
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Re:The CPUs of Spacecraft Computers in Space by bumby on Friday December 18, 2020 @09:55PM (#25474556)
Some NASA orgs have tried using FPGAs as a way to get around software requirements, to varying levels of success
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Re:The CPUs of Spacecraft Computers in Space by mhh__ on Friday December 18, 2020 @10:26PM (#25474719)
Interesting, although I was more thinking about FPGA's in things like acquisition and processing rather than overall logic as the PC seemed to imply.
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Re:The CPUs of Spacecraft Computers in Space by bumby on Friday December 18, 2020 @10:34PM (#25474757)
The high level NASA requirements cast a pretty wide net (to include data acquisition and processing) as to what falls under the purview of those requirements. From 7150.2:

“ A.30 Software. Computer programs, procedures, scripts, rules, and associated documentation and data pertaining to the development and operation of a computer system. Software includes programs and data. This also includes COTS, GOTS, MOTS, reused software, auto generated code, embedded software, firmware, and open source software components.”

https://nodis3.gsfc.nasa.gov/displayCA.cfm?Internal_ID=N_PR_...

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