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The Core Flight System (cFS) Telemetry Output Lab App (to_lab)

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Core Flight System : Framework : App : Telemetry Output Lab

This repository contains NASA's Telemetry Output Lab (to_lab), which is a framework component of the Core Flight System.

This lab application is a non-flight utility to downlink telemetry from the cFS Bundle. It is intended to be located in the apps/to_lab subdirectory of a cFS Mission Tree. The Core Flight System is bundled at https://github.com/nasa/cFS (which includes to_lab as a submodule), which includes build and execution instructions.

to_lab is a simple telemetry downlink application that sends CCSDS telecommand packets over a UDP/IP port. The UDP port and IP address are specified in the "Enable Telemetry" command. It does not provide a full CCSDS Telecommand stack implementation.

To send telemtry to the "ground" or UDP/IP port, edit the subscription table in the platform include file: fsw/platform_inc/to_lab_sub_table.h. to_lab will subscribe to the packet IDs that are listed in this table and send the telemetry packets it receives to the UDP/IP port.

Version History

Development Build: 2.4.0-rc1+dev21

  • TO remains command-able after a "remove all subscriptions" command; the command now only removes all subscriptions to the Tlm_pipe
  • See nasa#75

Development Build: 2.4.0-rc1+dev17

  • Aligns messages according to changes in cFE nasa/cFE#1009. Uses the "raw" message cmd/tlm types in definition
  • See nasa#70

Development Build: 2.4.0-rc1+dev13

  • Replaces deprecated SB API's with MSG
  • See nasa#65

Development Build: 2.4.0-rc1+dev9

  • Update the TLMsockid field to be osal_id_t instead of uint32
  • Set revision number to 99 to indicate development status in telemetry
  • See nasa#59

Development Build: 2.4.0-rc1+dev6

  • Adds header guard to to_lab_sub_table.h
  • See nasa#59

Development Build: 2.4.0-rc1+dev3

  • Remove reference to deprecated CFE_ES_SHELL_TLM_MID.
  • See nasa#58

Development Build: 2.3.0+dev45

  • Fixes bug where an unset address values caused subscriptions to MsgId 0 over 200 times. Added a TO_UNUSED entry at the end of the subscription list and a break in the subscription loop when TO_UNUSED found. No more subscriptions on the unused table slots (no MsgId 0 subscriptions).
  • Corrects return value of TO_LAB_init() to be int32 instead of int. Declaration now matches definition, and app builds without errors.
  • Add build number and baseline to version reporting.
  • See nasa#53

Development Build: 2.3.7

  • Makes the TO_LAB_Subs table into a CFE_TBL-managed table.
  • See nasa#46

Development Build: 2.3.6

  • Replace references to ccsds.h types with the cfe_sb.h-provided type.
  • See nasa#44

Development Build: 2.3.5

Development Build: 2.3.4

  • Configure the maximum depth supported by OSAL, rather than a hard coded 64.
  • See nasa#39

Development Build: 2.3.3

  • Apply the CFE_SB_MsgIdToValue() and CFE_SB_ValueToMsgId() routines where compatibility with an integer MsgId is necessary - syslog prints, events, compile-time MID #define values.
  • Deprecates shell tlm subscription
  • Changes to documentation
  • See nasa#38

Development Build: 2.3.2

  • Use OSAL socket API instead of BSD Sockets

  • Use global namespace to isolate variables

  • Minor updates (see nasa#27)

Development Build: 2.3.1

  • Fix for a clean build with OMIT_DEPRECATED
  • Minor updates (see nasa#26)

OFFICIAL RELEASE: 2.3.0 - Aquila

  • Minor updates (see nasa#13)

  • Not backwards compatible with OSAL 4.2.1

  • Released as part of cFE 6.7.0, Apache 2.0

OFFICIAL RELEASE: 2.2.0a

  • Released as part of cFE 6.6.0a, Apache 2.0

Known issues

As a lab application, extensive testing is not performed prior to release and only minimal functionality is included.

Getting Help

For best results, submit issues:questions or issues:help wanted requests at https://github.com/nasa/cFS.

Official cFS page: http://cfs.gsfc.nasa.gov

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