pim
cFS
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pim
cFS
- NASA CoreFlight System (CFS)
- Examples of excellently-written projects.
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[ANN] NASA's Ogma -- now with FPrime support
[4] https://github.com/nasa/cFS
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C programming jobs?
I definitely recommend looking at https://github.com/nasa/cFS for some great pure C coding.
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Resources for Space sector embedded programming
Nowadays there's a trend towards openness and reusability. There's frameworks like the NASA Core Flight System (cFS) and the NASA JPL F Prime framework. There's also workshops where all of us flight software engineers get together and discuss new research, trends etc: https://www.youtube.com/c/FlightSoftwareWorkshop
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Ask HN: What open source projects go to space?
Core Flight System (cFS) https://github.com/nasa/cFS
NASA has a lot of open source projects including a bunch that don't "go to space" but are used in space related projects (check each project for contributor guidelines):
https://github.com/nasa/openmct - web based mission control software
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ANN: NASA's Ogma
Your best bet is probably to read the documentation of the project itself, as well as documentation from the associated projects FRET, Copilot (https://copilot-language.github.io/documentation.html, https://ntrs.nasa.gov/citations/20200003164), and cFS (https://github.com/nasa/cFS).
What are some alternatives?
IMUtility - A Safety-Critical Utility Code
fprime - F´ - A flight software and embedded systems framework
zephyr - Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
Open MCT - A web based mission control framework.
copilot - A stream-based runtime-verification framework for generating hard real-time C code.
luos_engine - Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
kubos - An open source platform for satellites
ogma
fret - A framework for the elicitation, specification, formalization and understanding of requirements.
trick - Trick Simulation Environment. Trick provides a common set of simulation capabilities and utilities to build simulations automatically.