Space Qualified RTEMS

Rolf Schroedter rolf.schroedter at
Fri Jan 27 07:17:46 UTC 2012

This is mainly two patches. Both are problems with the Leon port, not 
the RTEMS itself.

1. LEON startup code overwrites RTEMS system configuration under some 

2. RTEMS - rtems_clock_get_uptime() fails during timer tick:

Both problems have been discussed last year with Konrad Eisele, but my 
patches are still not included in the current Gaisler release.
(I checked the latest dated 

AFAIK the patch for problem 2. has been included into the current RTEMS 
branch by Joel Sherrill.

@Phil: If you need these patches, I can send them to you by eMail.


On 26.01.2012 16:46, Phil Smith wrote:
> On Wed, Jan 25, 2012 at 01:01:30PM +0100, Rolf Schroedter wrote:
>> Until today, nobody from ESA complained about that I'm using the
>> RTEMS-4.10 branch, provided by Aeroflex-Gaisler
>> This is a bit behind the actual versions
>> from I'm using it with 2-3 (non-critical) bug-fixes and
> Hi Lee and all,
> We are using the latest Aeroflex-Gaisler RTEMS too on the Solar Orbiter EUI
> instrument and will keep open the option of an upgrade/patch or two during
> development if necessary.  It will be interesting to see what the other
> instruments choose.
> We like 4.10 or later for the same reasons expressed by others: bugfixes,
> features and support together with better testing.  RFS too.
> Rolf, what bug-fixes did you find necessary? Are they just selected official
> patches from 4.10 to latest?
> Phil.

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