NASA Core Flight System Stored Command Absolute (SCA) Application
The Stored Command Absolute (SCA) application is a core Flight System (cFS) application that is a plug in to the Core Flight Executive (cFE) component of the cFS.
The cFS is a platform and project independent reusable software framework and set of reusable applications developed by NASA Goddard Space Flight Center. This framework is used as the basis for the flight software for satellite data systems and instruments, but can be used on other embedded systems. More information on the cFS can be found at http://cfs.gsfc.nasa.gov
The SCA application allows a system to be commanded 24 hours a day using sequences of absolute time tagged sequences. Each command has a time tag associated with it, permitting the command to be released for distribution at predetermined times. SCA allows 5 absolute time tagged command sequences to be run concurrently. Unlike the Stored Command (SC) application, SCA relies on a text-based format to specify command sequences. This application is a prototype.
This software is licensed under the NASA Open Source Agreement. http://ti.arc.nasa.gov/opensource/nosa