Experimental Physics and Industrial Control System
Hello Goetz,
at the FHI (in Berlin ;-) ) we run RTEMS 4.12 with EPICS 3.16 on beatnik-boards (MVME6100)
and MVME2500 boards with success.
I can provide a RTEMS - EPICS 4.12 pre-release for MVME6100.
Hope to incorporate it final into epics-base by next 2-3 months.
I haven’t port cexp to rtems 4.12, would be happy for help ;-)
We setup new experiments still with VME bus systems.
Best regards,
Heinz
> On 20 Sep 2017, at 11:28, Goetz Pfeiffer <[email protected]> wrote:
>
> Hello,
>
> at the Helmholtz-Zentrum Berlin (https://www.helmholtz-berlin.de/) we use EPICS for our control system.
> We have a growing number of soft IOCs with Linux and VME bus based IOCs mostly running RTEMS and
> some vxWorks 5.4 (Tornado 2.02).
>
> Our CPU boards are MVME162 and MVME2100. We have replaced more than half of the old MVME162 boards with
> MVME2100 boards, of which we bought a large supply some years ago.
> After migrating most VME CPUs to RTEMS 4.9 we have run into some problems:
>
> • Newer CPU boards like the MVME5500 require the "beatnik" board support, which only works with RTEMS 4.10
> • RTEMS 4.10 has some problems regarding the "cexp" shell and doesn't work on some of our IOCs.
> • cexp, the shell for RTEMS is not compatible with RTEMS 4.11 and 4.12, but we need it for dynamic loading of objects
> • gesys, the component that is used to create the RTEMS kernel seems to be a bit of a mess
> • RTEMS 4.11 and 4.12 are not supported by the EPICS base
> • Debian Packages for RTEMS are no longer maintained
> • The intersection of the people using RTEMS and the ones using EPICS seems to be small and getting smaller, so with problems we are much on our own
> A possibility would be to use vxWorks again. Our current vxWorks version is very old and has to be updated. Problems here:
>
> • MVME2100 boards do not seem to be supported by vxWorks 6
> • Possibly high costs for CPU licenses for vxWorks
> What are your experiences with this ?
> Do you still use VME bus systems ?
>
> Is there a future for RTEMS in EPICS control systems ?
>
> Are there alternatives to RTEMS and vxWorks ?
>
> Greetings,
>
> Goetz Pfeiffer
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