David, Hal,
Thank you very much for the pointers, and the hand-holding.
I ordered a unit from Sure last month, which arrived last week. I used
David's excellent instructions, and I am happy to report that the unit
(cabled to a 1U Linux server, Debian testing) is working well (or so I
think).
On 06/01/2013 01:51, bownes wrote:
Mini-circuits and Hittite are the notable exceptions.
.. but Microcircuits do great giveaways (donation to charity)
at the Dayton Hamvention. Mostly this is past date code product,
but fine for homebrew.
Stewart
From: Gabs Ricalde
[]
Non-timing receivers could be unsuitable for your requirements, as
some of us have discovered:
http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html#oscillations
[]
===
Gabs,
The oscillations I reported are not due to the use of a navigation GPS
receiver.
HI
Well if you are getting it done in seconds on Matlab, then you likely don't
need Matlab very badly. Around here a typical Matlab setup is indeed CPU bound
for a *lot* longer than that during a normal work day. Two or three hours a day
is not at all unusual.
Bob
On Jan 6, 2013, at 11:21
No, that is a clone of the Altera USBBlaster JTAG interface. Maybe there is
around a suitable software that uses it as a generic JTAG interface.
On Mon, Jan 7, 2013 at 5:09 AM, M. Simon msimon6...@yahoo.com wrote:
160912291115
___
time-nuts mailing
On 1/6/13 8:56 PM, gary wrote:
There is an open source equivalent of Matlab called Octave.
Yes..we use it too, and for anyone who uses Matlab, Octave is nice to
have as well. For instance, we have a centralized license server for
Matlab, and if you're incommunicado, you're stuck, but with
Take a look at the COM Express standard, designed for embedded x86 computing:
http://www.picmg.org/v2internal/specifications2.cfm?thetype=Onethebusid=3
Additionally there is a huge amount of design support literature from Intel,
Adlink, Ampro, Congatec, Kontron, Radisys, etc. COM Express boards
On 1/6/13 9:26 PM, Hal Murray wrote:
jim...@earthlink.net said:
Precisely.. but I'd just as soon not be in the PC integration business,
finding boards to plug into a mobo, etc. I was wondering what folks have
used (or seen used) in this sort of usage model.
Google for embedded PC and/or
On 1/7/13 4:30 AM, Bob Camp wrote: HI
Well if you are getting it done in seconds on Matlab, then you likely
don't need Matlab very badly. Around here a typical Matlab setup is
indeed CPU bound for a *lot* longer than that during a normal work day.
Two or three hours a day is not at all
On 1/7/2013 1:25 AM, Jim Lux wrote:
If you're building a standalone widget (e.g. something like an NTP
server we've been discussing, etc.) with an embedded PC, don't want to
fool with hardware designing, etc.; use off the shelf OSes (win and
Linux) and software (Matlab, Labview); have solid
On Mon, 07 Jan 2013 06:11:59 -0800
Jim Lux jim...@earthlink.net wrote:
It's sort of the upscale version of the Arduino, PIC, MSP430 thing. I'm
looking for a building block that I can just drop in, hook up, and not
worry too much about.
If you don't mind to be stuck on linux and *bsd, i
On Mon, 07 Jan 2013 15:40:00 +0100
Alberto di Bene dib...@usa.net wrote:
I haven't used this, but from the specs it looks interesting ...
[1]http://www.hardkernel.com/renewal_2011/products/prdt_info.php?g_code
=G135235611947
73 Alberto I2PHD
I hear a lot of talk about those
On Mon, 07 Jan 2013 06:40:12 -0800
Jim Lux jim...@earthlink.net wrote:
There's a whole lot of stuff that time-nuts do in terms of data analysis
that is pretty quick and easy in Matlab (or Octave), especially for
fooling around. I'm not wild about Matlab's data acquisition
capabilities,
The tutorials that come as part of the octave documentation
package are quite good.
-Chuck Harris
Attila Kinali wrote:
On Mon, 07 Jan 2013 06:40:12 -0800
Jim Lux jim...@earthlink.net wrote:
There's a whole lot of stuff that time-nuts do in terms of data analysis
that is pretty quick and easy
On Sun, 06 Jan 2013 16:25:59 -0800, Jim Lux wrote:
Consulting the hive mind..
If you're building a standalone widget (e.g. something like an NTP
server we've been discussing, etc.) with an embedded PC, don't want to
fool with hardware designing, etc.; use off the shelf OSes (win and
Linux)
An semester or two with linear algebra is an good start, but the homepage
of matlab have an excelent learning section.
No experience with Octave yet.
MIT OCW (open courseware) have lectures on linear algebra, in addition to
most of the other courses offered at MIT.
BR.
Thomas.
2013/1/7 Attila
Hi
It being lunch time, I got out my stopwatch. On my machine here, Matlab
takes a bit over 30 seconds to load. FDATool takes another 30 seconds to
load. Loading a saved session on a fairly simple FIR into FDATool adds a
bit over a minute. If I tell it I want to load a fairly complex FIR that
I think you have it backwards. The purpose of Matlab and things like it
is NOT to save computer time. It is to have enginerring man hours. For
example a problem can be coded in two hours in Matlib that would take me a
week to code in C. But then when you run the software the C coded
Hi
The original spec called out needs to run Matlab. If that's already a
given, then CPU horsepower is the variable to optimize vs payroll hours.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chris Albertson
Sent: Monday,
On Mon, 7 Jan 2013 16:41:06 +0100
Attila Kinali att...@kinali.ch wrote:
Eg. you can also try the OlinuXino from Olimex, which are damn cheap.
(and unlike the Raspberry Pi they are completely documented and you
don't need any binary only drivers). I haven't tried any of those yet
(didn't have
I'm kind of late to the party on this one, and don't want to reopen and
send it off on a tangent. I agree with the injection-lock method, but
just want to suggest that since most uPs and uCs have their own CMOS
oscillator built in, the simplest solution would be to just use that as
intended,
Ed you are late to the dance. But do offer an additional piece of the
puzzle.
RCD I will guess is a RC differentiator. And your suggestion does get rid
of a separate oscillator. It wasn't my post. But would guess you just jam
the diff pulse into the osc amp in that the xtal feeds?
Regards
Paul
Actually, I was referring to an RC and Diode network in anticipation of
the possible need for more signal shaping flexibility, depending on the
signals and circuitry. The built-in oscillators are usually self-biased
CMOS inverters intended to go with crystals, and usually a couple of
small
A week ago I asked about a 10 MHz to 16 MHz multiplier. Thanks very much for
the suggestions and interesting discussion.
What's the simplest way to generate 16 MHz from 10 MHz? This
will be for clocking a microcontroller at 16 MHz given 10 MHz
(Cs/Rb/GPSDO). Low price and low parts count is a
Don't leave us in suspense :-) What method did you decide to use?
Joe Gray
W5JG
On Mon, Jan 7, 2013 at 8:54 PM, Tom Van Baak t...@leapsecond.com wrote:
A week ago I asked about a 10 MHz to 16 MHz multiplier. Thanks very much for
the suggestions and interesting discussion.
What's the
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