NASA Dawn Mission

Jiri Gaisler jiri at
Wed Sep 26 14:14:29 UTC 2007

You probably mean the Dawn Framing Camera (FC). It is controlled
by a LEON2 cpu in a Xilinx FPGA, running RTEMS. Some links
are here, I am sure can google up some more ...


PS. An interesting question would be who has the most
lines of code in the system. The LEON2 cpu is about
50,000 lines (of VHDL) - how much is RTEMS ...?   :-)

Joel Sherrill wrote:
> Hi,
> Today's Huntsville Times had an article on the
> Dawn mission since it is managed here at Marshall
> and should launch soon. 
> It mentioned instrumentation Germany.  Is
> some of this running RTEMS?  It all sound
> familiar like it is something I know about.
> I will post the link once it is available online
> if someone can confirm some RTEMS on this mission. :D
> --joel
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> rtems-users mailing list
> rtems-users at

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