2014 12:25 PM
To: time-nuts@febo.com
Subject: [time-nuts] GPSDO standard interface?
There is no standard interface for GPSDOs, but the Trimble TSIP interface as
used by the Thunderbolt/Lady Heather would be an excellent place to start and
include. Make the unit smart enough to run
http://www.ftdichip.com/Products/ICs/VNC1L.htm
On 6/26/2014 3:39 PM, time-nuts-requ...@febo.com wrote:
USB may be a common interface to a computer but practically useless to
another microcontroller.
Everything can do serial but not everything can do USB master. In the worst
case, use a
For a new design I'd re-think the entire architecture. Back in the 1980's
It made sense for a small instrument to push data over a cable to a bigger
computer where the data could be logged and displayed. The cost and
physical size of the computing power to log and display data was large.
Times
If you want to see how to generate TSIP message, I can post the code to my
Thunderbolt simulator. Its in Visual Basic but it will show you an example.
It generates the primary and secondary packets.
You can download the software from my web site www.ko4bb.com
Didier KO4BB
On June 26, 2014
I am quite familiar with that chip which perfectly illustrates my point. A
universal serial/USB Master interface it is not.
Didier KO4BB
On June 27, 2014 7:14:34 AM CDT, Dan Kemppainen d...@irtelemetrics.com wrote:
http://www.ftdichip.com/Products/ICs/VNC1L.htm
On 6/26/2014 3:39 PM,
Tom,
On 06/26/2014 04:02 AM, Tom Van Baak wrote:
Bob,
A couple of different ideas:
1) No UI at all. The surplus GPSDO favorites over the years (like the HP
SmartClock's and Trimble Thunderbolt) work with no UI. Yes, there is a PC
program you can use to monitor and control it, or even debug
Much better than room 137.
BTW, if you run into a physicist someday who can *calculate* 9192.631770 MHz
directly from quantum mechanics, ask them to calculate the other isotopes of
cesium. They should be different. But I have no idea how much or little.
/tvb
PS. At EFTF 2014 in Neuchatel,
On Wed, Jun 25, 2014 at 7:25 PM, Mark Sims hol...@hotmail.com wrote:
There is no standard interface for GPSDOs, but the Trimble TSIP interface
as used by the Thunderbolt/Lady Heather would be an excellent place to
start and include. Make the unit smart enough to run unattended, but add
...@leapsecond.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, June 25, 2014 9:02 PM
Subject: Re: [time-nuts] GPSDO standard interface?
Bob,
A couple of different ideas:
1) No UI at all. The surplus GPSDO favorites over the years (like the HP
...@febo.com] On Behalf
Of Chris Albertson
Sent: 26 June 2014 08:13
To: Bob Stewart; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPSDO standard interface?
If you want a common interface for GPS receivers it's NMEA and it's
relatively easy to implement. I certain
From: Tom Van Baak t...@leapsecond.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, June 25, 2014 9:02 PM
Subject: Re: [time-nuts] GPSDO standard interface?
Bob,
A couple of different ideas:
1) No UI at all. The surplus GPSDO
On Wed, Jun 25, 2014 at 11:14 PM, Bob Stewart b...@evoria.net wrote:
I'll look into both SCPI and TSIP, and therein lies the reason for my
original post. Essentially, have they been patented, and if so, have those
patents expired?
You almost certainly want to use SCPI which is managed by
,
PaulG8GJA
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chris Albertson
Sent: 26 June 2014 08:13
To: Bob Stewart; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPSDO standard interface?
If you
Yes I have... I have built several sensor type boards that use an ATMEL chip
as the processor. They output data in a TSIP packet format that tricked up
versions of Lady Heather can control and monitor. The most complicated one is
probably a LED/Battery analyzer device that measures
12:01 PM
Subject: [time-nuts] GPSDO standard interface?
Yes I have... I have built several sensor type boards that use an ATMEL chip
as the processor. They output data in a TSIP packet format that tricked up
versions of Lady Heather can control and monitor. The most complicated one
...@evoria.net
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, June 25, 2014 5:10 PM
Subject: [time-nuts] GPSDO standard interface?
In an offline communication, I suddenly realized that I hadn't given
any
thought to the user interface for my GPSDO
, UT+, LEA-6T, or
whatever.
Bob
From: Didier Juges shali...@gmail.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Thursday, June 26, 2014 2:22 PM
Subject: Re: [time-nuts] GPSDO standard interface?
USB may be a common
There are TSIP commands for doing all those things. It should be fairly easy
to adapt them to control your hardware and whatever GPS receiver you are using.
The nice thing about implementing a TSIP interface is being able to use
existing programs like Tboltmon and Lady Heather (over 30,000
Gosh, all we need to do is define a nice flexible software layer between the
GPSDO and the computer, etc. similar to ASCOM for astronomical telescopes.
That way, the layer and all its associated drivers do all the work, and
anyone's GPSDO or computer program will work if the associated drivers are
I dislike TSIP quite a bit. It's a disaster in my opinion if you are not
intimately familiar already with the Trimble binary commands, and exists in
a number of inconsistent and non-compatible dialects as far as I know. No
way for a human to enter a simple command in a simple text terminal,
http://adsabs.harvard.edu/abs/1957PhRv..105..590S
Cheers,
Magnus
On 06/26/2014 08:13 AM, Tom Van Baak wrote:
Much better than room 137.
BTW, if you run into a physicist someday who can *calculate* 9192.631770 MHz
directly from quantum mechanics, ask them to calculate the other isotopes of
This thread is now ready for the correct answer: http://xkcd.com/927/
/tvb
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Novatel has two versions of each message one binary (ending with B) and
one ASCII (ending with A). That is one way of catering to both the
interactive use and the clean software side of the problem.
Javad (GRIL now GREIS) is my personal favorite. Your commands are ascii,
often very short. The
In an offline communication, I suddenly realized that I hadn't given any
thought to the user interface for my GPSDO. Is there an accepted standard
interface for GPSDOs, or is that a murky Microsoft-esque world of patents and
lawyers?
Bob - AE6RV
Well, I built one of the ve2zaz units, and it has a. Pretty well defined serial
interface. On the other hand, the one I use most has a PIC and an LCD, no
serial interface.
On Jun 25, 2014, at 20:10, Bob Stewart b...@evoria.net wrote:
In an offline communication, I suddenly realized that I
.
Bob
From: bownes bow...@gmail.com
To: Bob Stewart b...@evoria.net; Discussion of precise time and frequency
measurement time-nuts@febo.com
Sent: Wednesday, June 25, 2014 7:35 PM
Subject: Re: [time-nuts] GPSDO standard interface?
Well, I built one
On Wed, Jun 25, 2014 at 5:10 PM, Bob Stewart b...@evoria.net wrote:
Is there an accepted standard interface for GPSDOs, or is that a murky
Microsoft-esque world of patents and lawyers?
No. There is no standard and many (most?) don't have any kind of user
interface at all, just the 10MHz
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Wednesday, June 25, 2014 5:10 PM
Subject: [time-nuts] GPSDO standard interface?
In an offline communication, I suddenly realized that I hadn't given any
thought to the user interface for my GPSDO. Is there an accepted
There is no standard interface for GPSDOs, but the Trimble TSIP interface as
used by the Thunderbolt/Lady Heather would be an excellent place to start and
include. Make the unit smart enough to run unattended, but add enough
monitoring commands so Lady Heather, etc can be used to monitor
: [time-nuts] GPSDO standard interface?
Bob,
A couple of different ideas:
1) No UI at all. The surplus GPSDO favorites over the years (like the HP
SmartClock's and Trimble Thunderbolt) work with no UI. Yes, there is a PC
program you can use to monitor and control it, or even debug
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