[time-nuts] BC637PCI and OCXO
GandalfG8 at aol.com
GandalfG8 at aol.com
Sat Feb 8 23:28:13 UTC 2014
Following my earlier post with download links for the Symmetricom software
and documentation CD TVB was kind enough to send me this Symmetricom
link......
http://www.symmetricom.com/bus-level-timing-sdk-and-driver-downloads/
I've verified that the two Windows archives there for the BC635/637 match
what's in the CD ISO and have no reason to assume the rest won't match
either, so this might be a more straightforward link to individual files.
I've had a BC637PCI running continuously since yesterday and can confirm
that both modules here seem to have a week 1024 rollover problem, via the
Datum/Symmetricom demo software both are happily reporting dates in June 1994.
I'm not sure yet whether the board takes the date from the GPS module or
just the week number, so I'm not sure either if this is an issue with the
Datum boards or with the Trimble Ace3 GPS modules, but I do have an earlier
comment from Trimble that they were happy the Ace3 wouldn't have a problem
after 1999 and I don't recall seeing this anyway when I last ran a BC637 a
few years ago, nor with some more recent tests on other Ace3 modules.
I'll run up an Ace3 standalone tomorrow but was just wondering if anyone
else has seen this behaviour with the BC637?
Regards
Nigel
GM8PZR
In a message dated 07/02/2014 17:13:35 GMT Standard Time, GandalfG8 at aol.com
writes:
Whilst sorting through my BC637PCI files earlier I realised for the first
time that an ISO file I'd downloaded in 2010, described by Symmetricom as
"BC635/637 driver", is actually a full software and documentation CD,
presumably what was then being supplied with new hardware.
Ether that or I had been aware and it's something else that's slipped
through the sieve:-)
As well as the Windows SDK and more recent versions of the BC635 and
BC637
demo software this file also contains later versions of the legacy demo
software than I'd used previously, perhaps making most, if not all, of
the
earlier software obsolete, although the pre Symmetricom manuals,
especially
the one with the schematics, are certainly worth having.
Now it's quite possible I'm the only one who wasn't aware of this, but in
case it's not just me, and as I can't locate the original again to quote
a
URL, I've uploaded a file that contains this ISO, the extracted files
from
the same, plus my original collection of earlier software and
documentation.
This is quite a large file, approx 235MB, so for anyone who might only be
interested in the earlier files I've also uploaded those as a smaller file
of approx 52MB.
BC637PCI_Full.rar 234.5 MB
https://mega.co.nz/#!6dgVzBQI!A8y-qffQo4X5OYViTz97ZyiFn05zaPPfxCwoGLDu0Kg
BC637PCI_Reduced.rar 50.2 MB
https://mega.co.nz/#!iUQiwK7R!wyRPeBnkS4o1iADZGp7c-ZS6hHNbNqEEb8p1KKbr-ZU
Any problems with the downloads or files please let me know and, as
always,
please feel free to upload elsewhere.
Regards
Nigel
GM8PZR
In a message dated 07/02/2014 03:36:46 GMT Standard Time, time at patoka.org
writes:
Hello,
Does anybody seen any links to the information how to implement external
OCXO to Symmetricom PCI TFP BC635/BC637 ?
--
WBW,
V.P.
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