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 BC635/63
On 07/02/14 18:45, d0ct0r wrote:
Great ! Super ! Thanks a LOT !
Also, Symmetricom shared the resource for the latest version of that
driver [BCPCI-V830 build 120].
http://www.symmetricom.com/bus-level-timing-sdk-and-driver-downloads/
I tried that on Ubuntu 12.04.3 LTS x86_64, kernel 3.2.0-58
On 07/02/14 09:09, Robert Watzlavick wrote:
Magnus,
What kind of problems did you have with it? I have a couple of BC635PCI
boards that I've been using for a while with my own LabVIEW-based
register driver. I've noticed some interesting behavior after board
reset (loses lock for 8 sec to 3.5 mi
As far as I understood, in many modes (except GPS mode), we need to set
date/time manually.
Also, I found the link for the "direct" oscillator replacement part:
http://www.mti-milliren.com/pdfs/210.pdf
I think in the documentation, Symmitricom mentioned this particular
model. Now I know how
Sounds like you cracked it, and beat me to it:-)
I just dug out a PCI expansion chassis, the quickest option for now, and
have one card up and running but have discovered, as a left over from my
playing earlier, that installing the later software, what Symmetricom calls
its "BC635/637 confi
> Aside of that OCXO implementation, I would like to ask some direction
> from time-nuts community about the relatively simple way to compare two
> 1PPS signals using some MCU. Lets say I have T-Bolt and BC637. Each has
> 1PPS and I would like to see the phase difference between of that two.
>
Now I have the plan. Thanks !
I'll try to connect external OCXO to that 15-pin connector, then using
provided utility, I could switch to external oscillator.
I think here is settings for externally connected source of 10Mhz:
12. Select Clock Source ->
0. Internal
1. External
Probably I'
Great ! Super ! Thanks a LOT !
Also, Symmetricom shared the resource for the latest version of that
driver [BCPCI-V830 build 120].
http://www.symmetricom.com/bus-level-timing-sdk-and-driver-downloads/
I tried that on Ubuntu 12.04.3 LTS x86_64, kernel 3.2.0-58-generic. And
its works for me.
My first card at least is a Datum card so quite old now, and that was fine
doing what you want to do..
You really will need to read the manuals in some detail and I do suggest
downloading the larger of the two files I uploaded, that will give you the
latest versions of the Demo programs tha
The information you need is more in the description of the software
commands, this will tell you how to switch between the internal and external
oscillators and how to vary the conditioning parameters and I'm pretty sure,
although it's been a while so might be wrong, that some of the softwa
It seems I have first generation of that card. And I was thinking to use
that card as a source of 1PPS and 10MHZ - not to feed it from another
reference. I though it is possible to do some "modding" to replace VCXO
by OCXO.
PCI Board Revision ID : 18 (0x12), Firmware Version : DT10041V11
Thanks everybody for the bit of information !
I have a "Revsion C" and "Revision K" manuals. In Revison "K" its only
one note about OCXO:
"An internal 10 MHz VCXO (Voltage Controlled Crystal Oscillator) is
disciplined to the
reference source. The VCXO output drives all timing functions on t
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
I played with this around five or six years ago but unfortunately my notes
from that time are likely to be buried somewhere still waiting to be
scanned or indexed.
All the necessary information though is in the user and SDK manuals,
connections for the 10MHz external input and EFC output
Magnus,
What kind of problems did you have with it? I have a couple of BC635PCI
boards that I've been using for a while with my own LabVIEW-based
register driver. I've noticed some interesting behavior after board
reset (loses lock for 8 sec to 3.5 min), and after changing the mode
(disrupts
Le 7 févr. 2014 à 00:18, d0ct0r a écrit :
>
> Hello,
>
> Does anybody seen any links to the information how to implement external OCXO
> to Symmetricom PCI TFP BC635/BC637 ?
>
>
check the Symmetricom datasheets. You don't mention the version you are
needing info for , IRIG/GPS.. Anyway,
The BC637PCI already have a VCXO onboard, but you add a OCXO on the
outside to get much better results.
It was the original poster that needed help.
My problems with the BC637PCI was that one of my boards didn't respond
completely as documented.
Cheers,
Magnus
On 07/02/14 05:37, Alex Pummer
Hi Magnus,
I could help you with that,
I also looking for a GPS module which has a 10kHz output,
To lock to the 1pps is a bit complicated, one would need a crystal
oscillator with very good short-time stability, with a 10kHz is just an
analog PLL, for what would you use the output -- what freque
14 3:18 PM
Subject: [time-nuts] BC637PCI and OCXO
>
> Hello,
>
> Does anybody seen any links to the information how to implement external
> OCXO to Symmetricom PCI TFP BC635/BC637 ?
>
>
> --
> WBW,
>
> V.P.
___
t
On 07/02/14 00:18, d0ct0r wrote:
Hello,
Does anybody seen any links to the information how to implement external
OCXO to Symmetricom PCI TFP BC635/BC637 ?
As I recall it, it's fairly straigh-forward to output the EFC and input
the clock frequency. I also recall that there is a API for changi
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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