Re: GreenSpring TIP810 CANbus system

[Matthias Clausen <Matthias.Clausen@desy.de>]

At DESY we are using the TIP810 and a compatible IP module built by IHEP 
in Russia.
In addition we are using DIN Rail PC's with a built in CAN interface 
based on the Intel 82527 chip.
http://www.powerbridge.de/daten/p_ipc-system/pc6/pc6.htm
All of them with EPICS support based on Andrews IPAC driver with our CAN 
driver below.

-Matthias


John Maclean wrote:

> Bill,
>
> At APS we've just moved to VIPC626 IP carriers. These are software 
> compatible with the previous VIPC616 model which has EPICS support. 
> The VIPC626 are a lot easier to configure I believe, no wire wrapping 
> required.
>
> I've used the TIP810 modules with Andrew Johnsons driver code on a 
> couple of projects and have found them to be absolutely rock solid. 
> IIRC they use an early generation of CAN controller chip. Later 
> generations of CAN controller mainly do more to offload processing 
> from CPU. This is probably not an issue unless you have many heavily 
> loaded CAN links coming into your ioc. I don't think 3 will be a 
> problem, but it will depend on the amount of bus traffic you have of 
> course. Gemini have 8 buses in one ioc. It almost certainly isn't an 
> issue if you use a PPC.
>
> HTH,
>
> John.
>
> wtw00992@creighton.edu wrote:
>
> > Greetings,
> >
> > I am trying to duplicate a CANbus system here at the STAR experiment. 
> > We have
> > two distinct modules/controllers and chains.  We want to split off 
> > some Wiener
> > crates to form a third (to make life easier on some subsytem 
> > detectors).  It
> > would also give us a backup option!
> >
> > We presently have two GreenSpring TIP810, which are VIP610 carrier 
> > boards. (6U
> > VME boards with 4IP and front I/O ribbon connections).  We use two 
> > processors,
> > one is a 162, and the other 167, otherwise things are pretty 
> > identical, except
> > for the numbers and kinds of Wiener crates on each chain.   For these 
> > systems we
> > run an old version of VxWorks 5.2 and an old version of EPICS 3.12-LBL.4
> > I did get some information from TEWs regarding the TIP810-10 which 
> > replaces the Greenspring 810, and am anxious to order.  I wanted to 
> > get some expert advice
> > first. 
> > Would there be significant benefits to trying a "new" approach rather 
> > than
> > duplicate. This all seems like a quick and easy option but perhaps 
> > there are
> > others that we should be considering?  (For example other carrier 
> > boards, the
> > TIP816 etc.)
> >
> > Thanks in advance
> >
> > Bill Waggoner
> > STAR
> > Brookhaven National Lab

--
------------------------------------------------------------------------
Matthias Clausen                         Cryogenic Controls Group(MKS-2)
phone:  +49-40-8998-3256                Deutsches Elektronen Synchrotron
fax:    +49-40-8994-3256                                    Notkestr. 85
e-mail: Matthias.Clausen@desy.de                           22607 Hamburg
WWW-MKS2.desy.de                                                 Germany
------------------------------------------------------------------------