A VME-MXI problem in the KEKB control system.

[Noboru Yamamoto <noboru.yamamoto@kek.jp>]

Hi,

Ever since the KEKB accelerators became operational, the VME/MXI/VXI
connection has been a  problem. Recently Mr. Akiyama of our group
studied the problem carefully and identified the source of problem.
After the discussion with National Instrument, the maker of VME-MXI
interface board, we applied a modification to the VME-MXI board
following the suggestion by NI. 

Since the modification, we did not observe this problem in the KEKB
system. 

You can find more information at

http://www-acc.kek.jp/WWW-ACC-exp/KEKB/control/MXI/MXI-index-e.html

Bye.

Noboru Yamamoto
KEKB control group
KEK, JAPAN