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There are at least 6 CPUs in the Instrument Suite (not counting redundant systems that are not powered ) and 4 of them are using RTEMS! A few of the instruments are driven by FGPA state machines and do not have processors or software.
<div class="">The FIELDS Suite (measuring electric and magnetic fields) has 2 CPUs (one main CPU and a second subsystem controller for one of the sensors). The Main CPU has a cold spare redundant system. Only one is powered at a time. We use RTEMS in both the
main CPU and the subsystem controller.</div>
<div class="">Lots of RTEMS flying tonight!</div>
<div class="">Jerry</div>
<div class=""><br class="">
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<blockquote type="cite" class="">
<div class="">On Mar 12, 2015, at 9:47 AM, Alan Cudmore <<a href="mailto:alan.cudmore@gmail.com" class="">alan.cudmore@gmail.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div dir="ltr" class="">Nice work Jerry.. I wonder how many CPUs are on each MMS satellite?
<div class="">Some of my software is on the main CPU of the Van Allen Probes as well.</div>
<div class=""><br class="">
</div>
<div class="">Fingers crossed for a smooth launch tonight!</div>
<div class=""><br class="">
</div>
<div class="">Alan</div>
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<div class="gmail_extra"><br class="">
<div class="gmail_quote">On Wed, Mar 11, 2015 at 4:58 PM, Needell, Jerry <span dir="ltr" class="">
<<a href="mailto:Jerry.Needell@unh.edu" target="_blank" class="">Jerry.Needell@unh.edu</a>></span> wrote:<br class="">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word" class="">
<div class="">A full description of the EMFISIS Instrument on Van Allen probes can be downloaded from:</div>
<a href="http://link.springer.com/article/10.1007/s11214-013-9993-6" target="_blank" class="">http://link.springer.com/article/10.1007%2Fs11214-013-9993-6</a>
<div class=""><br class="">
</div>
<div class="">The MMS Instrument descriptions should be published soon after launch, I hope.</div>
<div class="">The FIELDS processor board on MMS is very similar to the one on Van Allen Probes.</div>
<div class="">The hardware and software for the processors for both missions were done by the same team.</div>
<span class="HOEnZb"><font color="#888888" class="">
<div class="">-Jerry</div>
</font></span>
<div class="">
<div class="h5">
<div class=""><br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On Mar 11, 2015, at 4:44 PM, Paulo Villa <<a href="mailto:prcvilla@gmail.com" target="_blank" class="">prcvilla@gmail.com</a>> wrote:</div>
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<div class="">
<div dir="ltr" class="">
<div class="gmail_extra">Hi,</div>
<div class="gmail_extra"><br class="">
</div>
<div class="gmail_extra">Since we're on this subject, where can I find this specific information (sw/hw specs) for reference?</div>
<div class="gmail_extra"><br class="">
</div>
<div class="gmail_extra">Cheers,</div>
<div class="gmail_extra"><br class="">
</div>
<div class="gmail_extra">Paulo</div>
<div class="gmail_extra"><br class="">
<div class="gmail_quote">On 11 March 2015 at 17:11, Needell, Jerry <span dir="ltr" class="">
<<a href="mailto:Jerry.Needell@unh.edu" target="_blank" class="">Jerry.Needell@unh.edu</a>></span> wrote:<br class="">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The FIELDS Instrument Suite on MMS also uses RTEMS (4.9.2 on a LEON3-FT FPGA) - Go MMS!<br class="">
<br class="">
Also FYI, the EMFISIS Instrument on the Van Allen Probes (originally known as Radiation Bet Storm Probes - RBSP) mission launched in 2012 uses RTEMS (also 4.9.2 on a LEON3-FT FPGA) and has operated very successfully for the past 2 years in the Radiation Belts!<br class="">
<span class=""><font color="#888888" class=""><br class="">
Jerry<br class="">
</font></span>
<div class="">
<div class="">> On Mar 10, 2015, at 10:36 AM, Joel Sherrill <<a href="mailto:joel.sherrill@oarcorp.com" target="_blank" class="">joel.sherrill@oarcorp.com</a>> wrote:<br class="">
><br class="">
> Hi<br class="">
><br class="">
> Alan Cudmore was kind enough to pass this along<br class="">
><br class="">
> After years of development the MMS satellites will be launched on March<br class="">
> 12. MMS consists of 4 identical spacecraft, the main flight computers run<br class="">
> RTEMS 4.10 on a radiation hardened Coldfire CPU.<br class="">
><br class="">
> Mission information here:<br class="">
> <a href="http://mms.gsfc.nasa.gov/" target="_blank" class="">http://mms.gsfc.nasa.gov</a> <<a href="http://mms.gsfc.nasa.gov/" target="_blank" class="">http://mms.gsfc.nasa.gov/</a>><br class="">
><br class="">
> You can watch the launch on :<br class="">
> NASA EDGE USTREAM (8:45pm to 10:45pm EDT)<br class="">
> <a href="http://www.ustream.tv/nasaedge" target="_blank" class="">http://www.ustream.tv/nasaedge</a><br class="">
><br class="">
> or<br class="">
><br class="">
> NASA TV (8:00pm to 11:00pm EDT)<br class="">
> <a href="http://www.nasa.gov/multimedia/nasatv/index.html" target="_blank" class="">
http://www.nasa.gov/multimedia/nasatv/index.html</a><br class="">
><br class="">
> Scheduled Launch: 10:44pm EDT<br class="">
><br class="">
><br class="">
> ---<br class="">
><br class="">
> Our last RTEMS deployment has reached 5 years in orbit:<br class="">
> <a href="https://www.youtube.com/watch?v=GSVv40M2aks" target="_blank" class="">
https://www.youtube.com/watch?v=GSVv40M2aks</a><br class="">
> SDO has 5 Coldfire CPUs with RTEMS. The main flight computer runs vxWorks.<br class="">
><br class="">
><br class="">
> --<br class="">
> Joel Sherrill, Ph.D. Director of Research & Development<br class="">
> <a href="mailto:joel.sherrill@OARcorp.com" target="_blank" class="">joel.sherrill@OARcorp.com</a> On-Line Applications Research<br class="">
> Ask me about RTEMS: a free RTOS Huntsville AL 35805<br class="">
> Support Available <a href="tel:%28256%29%20722-9985" value="+12567229985" target="_blank" class="">
(256) 722-9985</a><br class="">
><br class="">
> _______________________________________________<br class="">
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