Re: RTEMS vs VxWorks

[Eric Norum <norume@aps.anl.gov>]

At the APS we've used RTEMS on a ColdFire/FPGA combination in a number  
of projects.  One of these IOCs ran almost two years between reboots  
-- and the only reason for the reboot was to update the FPGA firmware.

On Sep 2, 2008, at 9:28 AM, Dalesio, Leo wrote:

> NSLS II at Brookhaven expects to use RTEMS. We are just starting -  
> so you are further along than us. LCLS is using it and Till and  
> Ernest should comment on that. Eric should say to what extent it is  
> deployed at APS. And Elder should talk about their experience at CLS  
> - I think that they have the longest history there - when Eric did  
> the port of EPICS.
> Bob
>
>
> -----Original Message-----
> From: tech-talk-bounces@aps.anl.gov on behalf of GOURNAY  Jean- 
> Francois
> Sent: Tue 9/2/2008 7:22 AM
> To: tech-talk@aps.anl.gov
> Subject: RTMES vs VxWorks
>
> Hello All,
>
>
>
> We are in the design phase of a new accelerator project which will  
> be built in the frame of the so-called  "broader approach of the  
> ITER project". The goal of this accelerator (Eveda) is the  
> validation of the solutions for the future high power accelerator  
> IFMIF (International Fusion Materials Irradiation Facility).
>
>
>
> The control system will be based (of course) on Epics with VME IOCs.  
> The question is which RT OS to use? We are users of VxWorks for a  
> very long time for several projects and we were always very happy  
> with this system. It's expensive and we are no more privileged  
> customers of VxWorks but it's for sure a great product. As we saw  
> some interest for RTEMS in the community, we did complete tests with  
> Epics including the port of drivers for our favourite modules. All  
> this was satisfactory, so  we are really now at a cornerstone... and  
> we need some feedback of facilities using RTEMS. What are the  
> advantages or drawbacks based on your experience? Reliability? Off- 
> the-shelf availability of drivers (for PMC modules for example)?  
> availability of great features of VxWorks like the global symbol  
> table or the interactive functions call? Etc ...
>
>
>
> Many thanks,
>
> Jean-François
>
>
>
> J.F. Gournay
>
> CEA Saclay
>
> IRFU/SIS

--
Eric Norum <norume@aps.anl.gov>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793