Re: VME Address Modifiers in mv2400

["Ronald L. Sluiter" <sluiter@aps.anl.gov>]

 Hello Nick,

I don't have the mvme2400 distribution; but for the mvme2100 and mvme5100
the $WIND_BASE/target/config/mv[2100/2400/5100].h files have to be modified
and the BSP's rebuilt in order to change the VME AM's.

Using the mv5100.h file as an example, the default VME AM's
are set to non-privileged access through the VAL_LSI[0/1/2/3]_CTL
definitions in mv5100.h.  To change the VME AM from non-privileged to
supervisory change LSI_CTL_USR to LSI_CTL_SUP in the
VAL_LSI[0/1/2/3]_CTL definitions.

Hope this helps,
Ron Sluiter




Nick Rees wrote:

> I just had a problem swapping a system from a Heurikon board to a PPC
> mvme2400.
>
> It turned out that I had a VME board (VMIC4514) that responded to either
> supervisory or user A16 I/O, but couldn't be set to respond to both. It
> was set to respond to supervisory mode I/O because that is what I thought
> all VxWorks BSP's used. However, this worked with the Heurikon 
> board, but didn't work with the PPC.
>
> Has anyone seen this before. Does anyone have a hint as to the bit of the 
> Motorola BSP I have to change to make it use supervisory VME access?
>
> I apologise that this is really a VxWorks question, but I often find the
> tech-talk list a lower bandwith option with equally good results.
>
> Cheers,
>
> Nick Rees
>
> Head of Software and Computing Services
> Joint Astronomy Centre                   Ph:         +1 (808) 961-3756
> 660 N. Aohoku Place                      Fax:        +1 (808) 961-6516
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>