Kate Feng wrote:
> Andrew Johnson wrote:
>
> > Kate Feng wrote:
> > > Andrew Johnson wrote:
> > >
> > >>This doesn't mean that the existing drivers won't work; the vast
> > >>majority of the time they will be fine. They will not be robust in the
> > >>presence of unexpected bus errors though.
> > >
> > > And this problem rises only if the mvme6100 is used as a
> > > system controller. It will be fine if it's used a non system
> > > controller.
> >
> > No, that is incorrect. The problem relates to the onboard interface
> > between the CPU, its local PCI bus and the PCI to VME bridge chip; it is
> > not at all related to whether the VME interface chip is acting as the
> > VMEbus system controller or not.
>
> I meant if one use mvme5500 as the system controller, and mvme6100 as a
> 2nd CPU. In this case, mvme5500 is a VME master.
Assuming the 2nd CPU never has to initiate the VME bus read/write.
Only the mvme5500 does. -- Kate
> In your message :
> http://www.aps.anl.gov/epics/tech-talk/2006/msg00887.php
> It stated that "If the transaction was a VMEbus read, the VME Master
> completes the Linkage Module command by
> filling the buffer with a data pattern of all ones. " This only applies
> if the master CPU used the Tsi148 chip.
>
> I am sorry, but I had trouble in obtaining the document for the Tsi148.
> I had E-mail them since last week.
>
> Kate
>
> >
> >
> > - Andrew
> > --
> > There is considerable overlap between the intelligence of the smartest
> > bears and the dumbest tourists -- Yosemite National Park Ranger
- References:
- Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Re: VME Bus Error handling on MVME3100 and MVME6100 boards Andrew Johnson
- Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Re: VME Bus Error handling on MVME3100 and MVME6100 boards Andrew Johnson
- Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Navigate by Date:
- Prev:
Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Next:
Fedora Core 6 to drop OpenMotif Andrew Johnson
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
<2006>
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Next:
Re: VME Bus Error handling on MVME3100 and MVME6100 boards Kate Feng
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
<2006>
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
|