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Core Flight System

The core Flight System (cFS) is a platform and project independent reusable flight software framework and set of reusable software applications.    Use of OS and platforms makes it easy to port to multiple OS and applications.   
The CFS uses NASA best practices and architectures developed over 20+ flight missions.   A versions of CFS has been Class A (manned flight) certified.    A version of the CFS has been open sourced.    To obtain see opensat details below.
 
There is an open source and a non open version.    The open source version can be downloaded from the link below.   Any US entity can get the internal NASA version.
NASA has flown this on 20+ flight missions.
NASA 7150.2 Class A certification is for VxWorks and SPARC Architecture
    
 
Core Flight System Open Sat Kit
** Click here for open source download