1. Code Generation from SEDS
NASA has developed a tool that takes as input a software component SEDS and a cFS mission configuration file (XML) and generates C language header files
Header files currently just contain the message definitions, and engineering unit conversions
The tool is being integrated into the cFS build system used by multiple NASA centers
NASA is using a tool, Simulink Interface Layer (SIL) to autogenerate cFS components from a Simulink model
Used first on the LADEE mission
In work is SEDS tool for the SIL so that Simulink models can import and export SEDS

2. cFS Flight Software Architecture
EPS HW
Prop HW
SEDS defines this interface for devices
Analog
card I/O
DIO card I/O
C&T
Application
EPS
Application
GNC-G
Application
GNC-C
Application
Prop
Application
AFM
Application
GNC Sensors
Mass
Storage
System
SSR
1553
GPS/SIGI
SIGI,
1553 IO
IMU
Preprocessor
Nav KF
Nav Fast
Propagate
Nav
UPP
GPS
232
GPS IO
Data
Storage
Altimeter
232
Alt IO
LN200 IMU
Inter-task Message Router (SW Bus)
Health &
422
Safety
LN200 IO
Manager
Software
Scheduler
Limit
Checker
Telemetry
Output
Command
Ingest
Software
Bus
Time
Executive
Event
Table
Housekeeping
Services
Services
Services
Services
Custom IO Apps
CFS Core Services
SEDS can define this interface for all cFS software components
CFS Configurable Applications
Mission Specific Apps

3. Code Generation of Software Components
spacecraft
Profile/configuration
SOIS EDS
XML File(s)
Code
Generation tools
Executive
Services

4. Current SOIS Focus: Definition and Use of EDS

5. XTCE Generation from SEDS
NASA has developed a tool that takes as input a software component SEDS and a mission configuration file (XML) and generates an XTCE database for importing to different mission systems

6. SEDS to XTCE The Basic Framework
ITOS T&C
Note: has GSFC XTCE exporter, used for LRO but not mature
SOIS EDS
XML File
SOIS EDS
XML File
XTCE
XML File(s)
SOIS EDS
XML File
Existing GSFC Telemetry only Importer Tool with mission use lineage (DAT, SDO, MMS)
SOIS EDS
XML File(s)
Ball Cosmo T&C
Note: has XTCE exporter, not tested
Existing GSFC tools & Ball Cosmos Importer. Currently being used by JPL+GSFC w/LRO telemetry database
untried
Basic tlm/cmd database, Mission systems adds:
Ground calibrators
Limits
Units
mnemonics
Mission related specialization
ASIST T&C
Note: a basic import of XTCE telemetry would be possible without a large level of effort
Existing GSFC Telemetry Importer Only. Used for DAT, SDO, MMS. (also ingested but did not use: GPM, EO1)
SOIS EDS XSD
XTCE
XSD (V1.1)
Send tlm packet for display
(or commands)