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<== Date ==> <== Thread ==>

Subject: Re: PowerPC with MXI, MXI-2
From: Kate Feng <[email protected]>
To: Andrew Johnson <[email protected]>
Cc: EPICS tech-talk <[email protected]>, [email protected]
Date: Thu, 02 Nov 2000 10:46:25 -0500
Andrew Johnson wrote:

> Has anybody modified the EPICS VME-MXI-VXI driver to work on a PowerPC
> CPU?
> Has anybody modified the EPICS VME-MXI-VXI driver for the MXI-2 interface
> boards?
>
> If you or someone you know has worked on either of these, please let me
> know; I'd much rather not do either if I don't have to...
>

I originally developed a  non-EPICS VME-MXI-VXI driver for the MXI-2
interface on an MVME162 platform.   When we needed the same driver
to work with EPICS  on the MVME230x platform, I tried to compile the
VME-MXI-VXI driver which came with the EPICS release 3.13.1.1.  I
encountered  complications because that driver supports a wide range
of other interface hardware which I am not familiar with (e.g. NICPU030
and hpE1404).  Besides,  we need to have a new Fast Data Channel driver
to be incorporated into the EPICS VME-MXI-VXI driver for the MXI-2
in order to support our Tektronix TVS625/641 scopes.   At that moment,
to get my job done, it was easier for me to convert the non-EPICS driver I
wrote originally into the EPICS/PowerPC platform.


By using the makefile released with EPICS, I do not recall any PowerPC
related change during my VME-MXI-VXI driver conversion in the source codes.
I did have one problem with the Tektronix TVS625/641 scope driver
on the memcpy. However, the scope is working fine now.
If you have the EPICS driver working  specifically for the MXI-2 alreday, it

should be easy to convert it to the PPC platform.  If you are interested
in my codes, I will be glad to E-mail it to you.  Also,  you can check
the agenda of the EPICS workshop to be held in the Oak Ridge Lab..  I
recall there were some realated topics.


Cheers,
Kate

__________________________________________________________

S. Kate Feng                                                E-mail :
[email protected]
Brookhaven National Lab.
National Synchrotron Light Source
Bldg. 725D
Upton, New York  11973-5000








References:
PowerPC with MXI, MXI-2 Andrew Johnson

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