[time-nuts] BC637PCI and OCXO

GandalfG8 at aol.com GandalfG8 at aol.com
Sat Feb 8 18:28:13 EST 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.
_______________________________________________
time-nuts   mailing list -- time-nuts at febo.com
To unsubscribe, go to   
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow  the  instructions   there.

_______________________________________________
time-nuts  mailing list -- time-nuts at febo.com
To unsubscribe, go to  
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the  instructions there.




More information about the time-nuts mailing list