Question related to network communication

[N0Ball]

I have read through the codes in cFS and OSAL; however I'm quite curious of how communication are done. I have trace down the code to a connect/send function call and didn't see any further implementation. My guesses are it might be somewhere related to cFS? Also for real cases, in my imagination, the OS is able to communicate with the Ground station via the TCP/IP stack (which is shown in the sample where ground station can communicate via localhost ip) I didn't find out how it can be done if I have a custom communication module, if I am required to bridge the command, is there a document or sample?

[irowebbn]

The conventional method for cFS deployments to communicate is via apps called CI (command ingest) and TO (telemetry output). Simple implementations are available at https://github.com/nasa/to_lab and https://github.com/nasa/ci_lab. More complicated implementations use CCSDS protocols for communication, that can run on a number of different stacks: https://public.ccsds.org/Pubs/130x0g4e1.pdf

[N0Ball]

Thank U for the informtation. This is exactly what I meed.