Experimental Physics and
Industrial Control System

Gedare Bloom via Core-talk <core-talk at aps.anl.gov> · Fri, 12 Feb 2021 12:23:40 -0700

On Fri, Feb 12, 2021 at 3:16 AM Heinz Junkes <junkes at fhi-berlin.mpg.de> wrote:
>
> Good morning Gedare,
> Now I'll get in touch with you too.
> Unfortunately, I haven't really gotten around to continuing with RTEMS this year.
>
> Fortunately, Brendan Chandler has tried to bring everything together here.
> Andrew has already pointed this out:
> "Progress on our RTEMS-5 port of EPICS Base can be followed at this GitHub PR.” :
> https://github.com/epics-base/epics-base/pull/105
>
> For me it looks like this at the moment:
>
> I use RTEMS5 und EPICS7 with the MVME6100 in production.
> Unfortunately I can't use libbsd because the ethernet controller of the board is not supported.
> I tried to convert the driver from Till Strauman to the nexus driver, but unfortunately didn't get
> it done in 2-3 days and then aborted. Also there is no PCI/VMEbus support yet in the
> libbsd. I also still use the rudimentary VME, NTP support and Till's NFS (v2).
>
> I am satisfied with this so far in our environment. But other labs would like to use the MVME6100
> (MVME5500) with NFS3, NTP (PTP2) and especially VMEbus and loadable modules(lib).
>
> If I have noticed correctly there is funding for dyn link loader (by HZB, Bessy)
> and NFS3 (by Gemini) for RTEMS5/6 and libbsd.
>
That's my understanding also. I don't think anyone currently looks at
the PIC/VMEbus support in libbsd. This would seem to be the next high
priority, as we look to make our legacy libnetworking stack obsolete
soon. (More on that, coming soon.) Do you/anyone have any idea what
the PIC/VMEbus support might entail? (Has anyone tried scoping it
out.)

Does anyone know the state of VMEbus on Qemu? Generally, VMEbus
hardware is out of budget for my University team and for RTEMS Project
resources, so we would need either sponsorship/donations to contribute
in that direction unless qemu is mature enough.

> I have the MVME2500 (qoriq_e500) running quite well with libbsd and Till's NFS2.
> I miss the support for PCI/VMEbus, Time-client (NTP, PTP2) and RTC.
>
> I would like to use my new playground (MTCa4, IFC1420, FPGA) also with RTEMS. The board
> is also a Qoriq based system. But again, support for PCI will be critical. I couldn't try anything yet though.
>
> I am currently developing EPICS7 with RTEMS5 and libbsd on xilinx_zynq_a9_qemu. This works so far quite ok.
> (I haven't managed to boot an image on the xilinx_zynq_a9 hardware with U-Boot yet, though, unfortunately).
>
> Viele Grüße
> Heinz
>
>
> > On 11. Feb 2021, at 21:32, Gedare Bloom via Core-talk <core-talk at aps.anl.gov> wrote:
> >
> > Hello again EPICS Core,
> >
> > I'm looking to collect some feedback from you all related to
> > EPICS+RTEMS. I'm trying to also keep in touch with monitoring the
> > progress on EPICS7/RTEMS5 (And, I'm planning to participate with
> > students in the upcoming hackathon! if you have tasks related, I might
> > be able to help knock them out). My ask right now is:
> > * What feature improvements would you like to see in future RTEMS releases?
> > * What are your pain points with current RTEMS versions and/or workflows?
> >
> > And anything else positive/negative you'd like to put out here is
> > certainly welcome.
> >
> > -Gedare
>

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System