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Restore ci_lab/to_lab for direct cFS GroundSystem commanding and telemetry - #18
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LeStarch merged 4 commits intoAug 6, 2026
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Co-Authored-By: michael.d.starch <michael.d.starch@jpl.nasa.gov>
…acketized telemetry Co-Authored-By: michael.d.starch <michael.d.starch@jpl.nasa.gov>
…0x0804 overlap Co-Authored-By: michael.d.starch <michael.d.starch@jpl.nasa.gov>
Co-Authored-By: michael.d.starch <michael.d.starch@jpl.nasa.gov>
LeStarch
approved these changes
Aug 6, 2026
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Describe the contribution
Restores the standard cFS lab ground-interface applications so the cFS GroundSystem talks directly to the software bus, with no F Prime GDS bridge in the loop:
nasa/ci_labandnasa/to_labsubmodules underapps/MISSION_GLOBAL_APPLISTand the cpu1 startup scripttables/cpu1_to_lab_sub.c) subscribing to the F Prime packetized telemetry message (0x0804= secondary-header flag |ComCfg.Apid.FW_PACKET_PACKETIZED_TLM)With this, GroundSystem commands flow over UDP :1234 -> CI_LAB -> SB -> fprime_app, and telemetry flows fprime_app -> SB -> TO_LAB -> UDP :2234 -> GroundSystem. The
fprime_gdsGdsBridge app remains solely the F Prime GDS (TCP) integration path.Companion change: fprime-community/fprime_cfs#22 reworks the
fprime-cfsGroundSystem tooling to target CI_LAB/TO_LAB directly (telemetry stream id0x0804, cFS telemetry secondary header offsets, TO_LAB enable-output on startup) and removes the frame bridge.Testing performed
make SIMULATION=native prep && make && make installcore-cpu1withapps/fprime_appat the ComCfg function-code branch andlibs/fprime_cfsat the tooling branchfprime-cfsrunner: generated GroundSystem config, launched cFS + GroundSystem GUI, TO_LAB output auto-enabledCfsCore.cmdDisp.CMD_NO_OPsent through CI_LAB incrementsCommandsDispatchedto 1Expected behavior changes
System(s) tested on
Additional context
Submodule pins for
apps/fprime_appandlibs/fprime_cfsare unchanged here; the function-code dictionary constant arrives via fprime-community/fprime_app#13 and the tooling via fprime-community/fprime_cfs#22.Contributor Info - All information REQUIRED for consideration of pull request
Devin (Cognition AI) on behalf of Michael Starch, NASA JPL