[evlatests] L350 MIB and the WIDAR timecode faults

[Ken Sowinski]

On Wed, 29 May 2013, Keith Morris wrote:

> Ken and Hichem have identified the part of the L350 MIB code that is
> likely responsible for the missing 60-second flag pulse edges.  This is
> believed to be responsible for both flavors of timecode faults --
> minutes of zero second duration, and minutes with more than 60 seconds,
> depending on which edge of the pulse was missing.
>
> A fix to this has been running in the lab for the past week, with no
> recurrences of the missing flag.  We propose to deploy this new MIB
> version during today's maintenance day.  We will load the image onto
> both L350s and reboot them, at which time the array will need to be
> resynchronized.

This was done a few minutes ago.  The antennas remained synchronized;
station boards had to be reset to use timecode A, and some deformatters
re-synchronized.  All looks well so far.

We don't expect to see any more timecode errors in the correlator,
but any seen should still be reported.