Re: [time-nuts] Windows app for FE5680 info dump

2012-01-27 Thread Rob Kimberley
I downloaded it OK, but Symantec didn't like it and deleted it.

Doh!!!

Rob K

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Don Latham
Sent: 27 January 2012 01:09
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Windows app for FE5680 info dump

I'd like to try this program, but my browser simply times out at the URL
supplied below. Is it right at:
http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
???
thanks
Don


paul swed
 Newell
 Your program worked just fine.
 Here is my units info
 Markings
 FE5680a 66576 is the model and SN is 0337-65040 Captured the system 
 cold at turn on and then warm and locked All in the txt doc Regards 
 Paul WB8TSL

 On Wed, Jan 25, 2012 at 2:37 PM, Chuck Forsberg WA7KGX N2469R
 c...@omen.comwrote:

 Here is the output from my 2nd 5680a
 Running Win 7 64 bit COM8 via two headed USB to RS232 cable from Frys


 On 01/24/2012 08:08 PM, paul swed wrote:

 Newell that explains that. Let me try tomorrow at the command line 
 level.
 Thanks

 On Tue, Jan 24, 2012 at 9:37 PM, Scott 
 Newellnewell+timenuts@n5tnl.**comnewell%2btimen...@n5tnl.com
 wrote:

  I've been asked for a windows version of the FE5680 info dump app, 
 so
 here
 it is:
 http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.ex
 ehttp://n5tnl.com/time/fe-**5680a/control/fe5680_info_**win32.exe
 http://n5tnl.com/**time/fe-5680a/control/fe5680_**info_win32.exeh
 ttp://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
 


 Please let me know if you have any trouble.  It's a command line 
 program that's expecting a com port number as the only parameter 
 (fe5680_info_win32.exe 1 for com 1).  It'll dump the replies to 
 all the commands we know of in both hex and ascii.

 If you try it out, please send me a copy of your results.


 thanks!
 newell  N5TNL


 ___

 time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to 
 https://www.febo.com/cgi-bin/https://www.febo.com/cgi-bin/**
 mailman/listinfo/time-nutshtt**ps://www.febo.com/cgi-bin/**
 mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/lis
 tinfo/time-nuts
 

 and follow the instructions there.

  __**_
 time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to 
 https://www.febo.com/cgi-bin/** 
 mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/list
 info/time-nuts
 and follow the instructions there.


 --
 Chuck Forsberg WA7KGX N2469R c...@omen.com   www.omen.com
 Developer of Industrial ZMODEM(Tm) for Embedded Applications
  Omen Technology Inc  The High Reliability Software
 10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430


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


-- 
Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind.
R. Bacon
If you don't know what it is, don't poke it.
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com



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


[time-nuts] Exact power connector for Symmetricom TimeProvider 100

2012-01-27 Thread Julien Goodwin
I'm wondering if anyone knows exactly which power connector the
Symmetricom TimeProvider 100 uses as as the manual doesn't have it (word
of advice people, describing a connector as simply Molex style is
fairly useless), and a trawl of mouser seems to indicate it's a MiniFit
Plus series but I'm not about to order one of everything to figure out
which one.

(Yes I could mail Symmetricom, but I bought it used without PSU)

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


Re: [time-nuts] Windows app for FE5680 info dump

2012-01-27 Thread paul swed
Don
Just checked works fine for me. I am using chrome
Regards
Paul.

On Thu, Jan 26, 2012 at 8:08 PM, Don Latham d...@montana.com wrote:

 I'd like to try this program, but my browser simply times out at the URL
 supplied below. Is it right at:
 http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
 ???
 thanks
 Don


 paul swed
  Newell
  Your program worked just fine.
  Here is my units info
  Markings
  FE5680a 66576 is the model and SN is 0337-65040
  Captured the system cold at turn on and then warm and locked
  All in the txt doc
  Regards
  Paul
  WB8TSL
 
  On Wed, Jan 25, 2012 at 2:37 PM, Chuck Forsberg WA7KGX N2469R
  c...@omen.comwrote:
 
  Here is the output from my 2nd 5680a
  Running Win 7 64 bit COM8 via two headed USB to RS232 cable from Frys
 
 
  On 01/24/2012 08:08 PM, paul swed wrote:
 
  Newell that explains that. Let me try tomorrow at the command line
  level.
  Thanks
 
  On Tue, Jan 24, 2012 at 9:37 PM, Scott
  Newellnewell+timenuts@n5tnl.**comnewell%2btimen...@n5tnl.com
  wrote:
 
   I've been asked for a windows version of the FE5680 info dump app,
  so
  here
  it is:
  http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
 http://n5tnl.com/time/fe-**5680a/control/fe5680_info_**win32.exe
  http://n5tnl.com/**time/fe-5680a/control/fe5680_**info_win32.exe
 http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
  
 
 
  Please let me know if you have any trouble.  It's a command line
  program
  that's expecting a com port number as the only parameter
  (fe5680_info_win32.exe 1 for com 1).  It'll dump the replies to
  all the
  commands we know of in both hex and ascii.
 
  If you try it out, please send me a copy of your results.
 
 
  thanks!
  newell  N5TNL
 
 
  ___
 
  time-nuts mailing list -- time-nuts@febo.com
  To unsubscribe, go to
  https://www.febo.com/cgi-bin/https://www.febo.com/cgi-bin/**
  mailman/listinfo/time-nutshtt**ps://www.febo.com/cgi-bin/**
  mailman/listinfo/time-nuts
 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
  
 
  and follow the instructions there.
 
   __**_
  time-nuts mailing list -- time-nuts@febo.com
  To unsubscribe, go to https://www.febo.com/cgi-bin/**
  mailman/listinfo/time-nuts
 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
  and follow the instructions there.
 
 
  --
  Chuck Forsberg WA7KGX N2469R c...@omen.com   www.omen.com
  Developer of Industrial ZMODEM(Tm) for Embedded Applications
   Omen Technology Inc  The High Reliability Software
  10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430
 
 
  ___
  time-nuts mailing list -- time-nuts@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@febo.com
  To unsubscribe, go to
  https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
  and follow the instructions there.


 --
 Neither the voice of authority nor the weight of reason and argument
 are as significant as experiment, for thence comes quiet to the mind.
 R. Bacon
 If you don't know what it is, don't poke it.
 Ghost in the Shell


 Dr. Don Latham AJ7LL
 Six Mile Systems LLP
 17850 Six Mile Road
 POB 134
 Huson, MT, 59846
 VOX 406-626-4304
 www.lightningforensics.com
 www.sixmilesystems.com



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


[time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread beale
I added a bit to the electronics section of the FE-5680A FAQ as below.
http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:fe5680a_faq#electronic

(Note- until today, I had the 8 and 6 digits transposed, calling it the 
fe5860a. But no one noticed :-)

The updated section is below. I measured the 20 MHz input and 5.3 MHz output of 
the DDS, but I'm puzzled by how the tuning resolution (4.6 mHz) of the DDS 
output is divided by such a large factor to achieve 0.18 uHz resolution at the 
final 10 MHz output. Can any frequency synthesizer gurus explain how this is 
done?

-
The main digital electronic parts are:

Maxim DS80C323END (8051, 44TQFP, -40/+85C, 18 MHz, 4 8-bit ports, 64K/64K 
ROM/RAM )
STMicro PSD813F1V-20UI (1Mbit flash, 256Kbit EEPROM, 16Kbit SRAM, 3k PLD 
gates, ISP)
Xilinx XC9572XL VQ64BN (64-pin CPLD, 178 MHz, 72 macrocells)
Analog Devices AD9832BRU (25 MHz Direct Digital Synthesizer, on-chip 10-bit 
DAC)

Other ICs on digital side of PCB:

Maxim MAX708 CPU supervisor
Maxim DS1832 CPU watchdog, brownout detect
Maxim MAX882 3.3V LDO (5V input)
Maxim MAX1246 4 ch. 12-bit ADC
Maxim MAX3232 RS-232 transciever

Operation

A 60 MHz sine from the VCXO enters CPLD pin 64 and it generates 3.3V square 
wave outputs at 30 MHz (pin 22), 20 MHz (pin 1), and 10 MHz (pin 49). The 20 
MHz output goes to the clock input of the AD9832 DDS chip, which generates a 
5.3 MHz sinewave output (nominal, when the RS-232 offset is set to 0). The 
frequency resolution of the DDS itself is (Fclock)/2^32 and since Fclock=20 
MHz, the 5.3 MHz output is tuned in steps of 4.657E-3 Hz. However, the FE-5860A 
10 MHz output step size is 1.7854E-7 Hz, so the DDS output frequency must be 
effectively divided in the overall system by a factor of about 26000 at the 10 
MHz output (or a factor of 4333 at the 60 MHz VCXO frequency). The Rb hyperfine 
transition is at 6.835 GHz which is about 683x larger than 10 MHz.

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


Re: [time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread paul swed
Nice page really taking shape

On Fri, Jan 27, 2012 at 1:27 PM, beale be...@bealecorner.com wrote:

 I added a bit to the electronics section of the FE-5680A FAQ as below.

 http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:fe5680a_faq#electronic

 (Note- until today, I had the 8 and 6 digits transposed, calling it the
 fe5860a. But no one noticed :-)

 The updated section is below. I measured the 20 MHz input and 5.3 MHz
 output of the DDS, but I'm puzzled by how the tuning resolution (4.6 mHz)
 of the DDS output is divided by such a large factor to achieve 0.18 uHz
 resolution at the final 10 MHz output. Can any frequency synthesizer gurus
 explain how this is done?

 -
 The main digital electronic parts are:

Maxim DS80C323END (8051, 44TQFP, -40/+85C, 18 MHz, 4 8-bit ports,
 64K/64K ROM/RAM )
STMicro PSD813F1V-20UI (1Mbit flash, 256Kbit EEPROM, 16Kbit SRAM, 3k
 PLD gates, ISP)
Xilinx XC9572XL VQ64BN (64-pin CPLD, 178 MHz, 72 macrocells)
Analog Devices AD9832BRU (25 MHz Direct Digital Synthesizer, on-chip
 10-bit DAC)

 Other ICs on digital side of PCB:

Maxim MAX708 CPU supervisor
Maxim DS1832 CPU watchdog, brownout detect
Maxim MAX882 3.3V LDO (5V input)
Maxim MAX1246 4 ch. 12-bit ADC
Maxim MAX3232 RS-232 transciever

 Operation

 A 60 MHz sine from the VCXO enters CPLD pin 64 and it generates 3.3V
 square wave outputs at 30 MHz (pin 22), 20 MHz (pin 1), and 10 MHz (pin
 49). The 20 MHz output goes to the clock input of the AD9832 DDS chip,
 which generates a 5.3 MHz sinewave output (nominal, when the RS-232 offset
 is set to 0). The frequency resolution of the DDS itself is (Fclock)/2^32
 and since Fclock=20 MHz, the 5.3 MHz output is tuned in steps of 4.657E-3
 Hz. However, the FE-5860A 10 MHz output step size is 1.7854E-7 Hz, so the
 DDS output frequency must be effectively divided in the overall system by a
 factor of about 26000 at the 10 MHz output (or a factor of 4333 at the 60
 MHz VCXO frequency). The Rb hyperfine transition is at 6.835 GHz which is
 about 683x larger than 10 MHz.

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


Re: [time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread Pete Lancashire
(Note- until today, I had the 8 and 6 digits transposed, calling it
the fe5860a. But no one noticed :-)

I've had dyslexia since my youth hence my brain automatically
corrected it. Maybe common with
time-nuts...

-pete

On Fri, Jan 27, 2012 at 10:27 AM, beale be...@bealecorner.com wrote:
 I added a bit to the electronics section of the FE-5680A FAQ as below.
 http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:fe5680a_faq#electronic

 (Note- until today, I had the 8 and 6 digits transposed, calling it the 
 fe5860a. But no one noticed :-)

 The updated section is below. I measured the 20 MHz input and 5.3 MHz output 
 of the DDS, but I'm puzzled by how the tuning resolution (4.6 mHz) of the DDS 
 output is divided by such a large factor to achieve 0.18 uHz resolution at 
 the final 10 MHz output. Can any frequency synthesizer gurus explain how this 
 is done?

 -
 The main digital electronic parts are:

    Maxim DS80C323END (8051, 44TQFP, -40/+85C, 18 MHz, 4 8-bit ports, 64K/64K 
 ROM/RAM )
    STMicro PSD813F1V-20UI (1Mbit flash, 256Kbit EEPROM, 16Kbit SRAM, 3k PLD 
 gates, ISP)
    Xilinx XC9572XL VQ64BN (64-pin CPLD, 178 MHz, 72 macrocells)
    Analog Devices AD9832BRU (25 MHz Direct Digital Synthesizer, on-chip 
 10-bit DAC)

 Other ICs on digital side of PCB:

    Maxim MAX708 CPU supervisor
    Maxim DS1832 CPU watchdog, brownout detect
    Maxim MAX882 3.3V LDO (5V input)
    Maxim MAX1246 4 ch. 12-bit ADC
    Maxim MAX3232 RS-232 transciever

 Operation

 A 60 MHz sine from the VCXO enters CPLD pin 64 and it generates 3.3V square 
 wave outputs at 30 MHz (pin 22), 20 MHz (pin 1), and 10 MHz (pin 49). The 20 
 MHz output goes to the clock input of the AD9832 DDS chip, which generates a 
 5.3 MHz sinewave output (nominal, when the RS-232 offset is set to 0). The 
 frequency resolution of the DDS itself is (Fclock)/2^32 and since Fclock=20 
 MHz, the 5.3 MHz output is tuned in steps of 4.657E-3 Hz. However, the 
 FE-5860A 10 MHz output step size is 1.7854E-7 Hz, so the DDS output frequency 
 must be effectively divided in the overall system by a factor of about 26000 
 at the 10 MHz output (or a factor of 4333 at the 60 MHz VCXO frequency). The 
 Rb hyperfine transition is at 6.835 GHz which is about 683x larger than 10 
 MHz.

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

Re: [time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread Graham / KE9H

On 1/27/2012 12:27 PM, beale wrote:

I added a bit to the electronics section of the FE-5680A FAQ as below.
http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:fe5680a_faq#electronic

(Note- until today, I had the 8 and 6 digits transposed, calling it the 
fe5860a. But no one noticed :-)

The updated section is below. I measured the 20 MHz input and 5.3 MHz output of 
the DDS, but I'm puzzled by how the tuning resolution (4.6 mHz) of the DDS 
output is divided by such a large factor to achieve 0.18 uHz resolution at the 
final 10 MHz output. Can any frequency synthesizer gurus explain how this is 
done?




The AD9832 is an Analog Devices DDS which has a 32 bit tuning word.

The way a DDS generates the output, is that it (effectively) has a cosine
wave look-up table, with 2^32 entries that comprise a single cosine wave 
cycle.


The tuning word tells it how many entries the DDS should advance every
reference input clock cycle, then it pushes that amplitude value in the 
look-up table

to the output D-A converter.

So, if the input reference is 20 MHz, then the DDS can generate frequencies
with a resolution step of

 Vref/2^32  =  20,000,000 / 4,294,967,296  =  0.0046566 Hz.

The DDS output frequency is(tuning word /2^32) times Vref.

In the actual implementation, rather than a 4 billion entry look-up table,
I am sure they have some algorithm that calculates the amplitude of
a cosine wave, or a much smaller table with a sophisticated interpolation
routine.

--- Graham / KE9H

==

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


Re: [time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread beale
I appreciate those notes; the data sheet for the DDS part also explains it. It 
has a 12-bit LUT driving an internal 10-bit DAC (the 5.3 MHz sine is still a 
bit coarse, with  4 samples per cycle, but in the 5680 it is cleaned up by an 
external filter).

Because phase information maps directly into amplitude, a ROM LUT converts the 
phase information into amplitude. To do this, the digital phase information is 
used to address a sine ROM LUT. Although the NCO contains a 32-bit phase 
accumulator, the output of the NCO is truncated to 12 bits. Using the full 
resolution of the phase accumulator is impractical and unnecessary because this 
would require a look-up table of 2^32 entries.
...from http://www.analog.com/static/imported-files/data_sheets/AD9832.pdf

However, my question was actually about how the remainder of the circuitry in 
the FE-5680A combines the 5.3 MHz from the DDS (at 4 mHz tuning step size), and 
the 60 MHz VCXO, to reference against the 6.835 GHz Rb frequency and ultimately 
achieve 0.18 uHz (micro-Hz) tuning step size at the final 10 MHz output.  I 
don't think a simple multiplier-mixer-divider chain (for example) could give 
you such a small tuning step size at the output, the frequency ratios don't 
work out.  I've heard of fractional-N PLL synthesizers but I'm not sure if 
that's the principle here.

  ---Original Message---
  From: Graham / KE9H time...@austin.rr.com
 
  The AD9832 is an Analog Devices DDS which has a 32 bit tuning word.  
  The way a DDS generates the output, is that it (effectively) has a cosine
  wave look-up table, with 2^32 entries that comprise a single cosine wave
  cycle.
  
  The tuning word tells it how many entries the DDS should advance every
  reference input clock cycle, then it pushes that amplitude value in the
  look-up table
  to the output D-A converter.
  
  So, if the input reference is 20 MHz, then the DDS can generate frequencies
  with a resolution step of
  
    Vref/2^32  =  20,000,000 / 4,294,967,296  =  0.0046566 Hz.
  
  The DDS output frequency is(tuning word /2^32) times Vref.
  
  In the actual implementation, rather than a 4 billion entry look-up table,
  I am sure they have some algorithm that calculates the amplitude of
  a cosine wave, or a much smaller table with a sophisticated interpolation
  routine.
  
  --- Graham / KE9H

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


Re: [time-nuts] FE-5680A FAQ update: question about frequency synthesizer architecture

2012-01-27 Thread claudio.gira...@virgilio.it
Hello John,
thanks for maintaining the 5680A FAQ;
regarding its 
frequency resolution, have you checked the DDS FSELECT pin (and maybe 
also PSEL0/1) to see if they are doing some kind of dithering of the 
DDS frequency ?

C.

Original Message
From: beale@bealecorner.
com
Date: Jan 27, 2012 9:01 PM
To: Discussion of precise time and 
frequency measurementtime-nuts@febo.com
Subj: Re: [time-nuts]  FE-
5680A FAQ update: question about frequency synthesizer architecture

I appreciate those notes; the data sheet for the DDS part also 
explains it. It has a 12-bit LUT driving an internal 10-bit DAC (the 
5.3 MHz sine is still a bit coarse, with  4 samples per cycle, but in 
the 5680 it is cleaned up by an external filter).

Because phase 
information maps directly into amplitude, a ROM LUT converts the phase 
information into amplitude. To do this, the digital phase information 
is used to address a sine ROM LUT. Although the NCO contains a 32-bit 
phase accumulator, the output of the NCO is truncated to 12 bits. Using 
the full resolution of the phase accumulator is impractical and 
unnecessary because this would require a look-up table of 2^32 
entries.
...from http://www.analog.com/static/imported-
files/data_sheets/AD9832.pdf

However, my question was actually about 
how the remainder of the circuitry in the FE-5680A combines the 5.3 MHz 
from the DDS (at 4 mHz tuning step size), and the 60 MHz VCXO, to 
reference against the 6.835 GHz Rb frequency and ultimately achieve 
0.18 uHz (micro-Hz) tuning step size at the final 10 MHz output.  I 
don't think a simple multiplier-mixer-divider chain (for example) could 
give you such a small tuning step size at the output, the frequency 
ratios don't work out.  I've heard of fractional-N PLL synthesizers but 
I'm not sure if that's the principle here.

  ---Original 
Message---
  From: Graham / KE9H time...@austin.rr.com
 
  
The AD9832 is an Analog Devices DDS which has a 32 bit tuning word.  
  The way a DDS generates the output, is that it (effectively) has a 
cosine
  wave look-up table, with 2^32 entries that comprise a single 
cosine wave
  cycle.
  
  The tuning word tells it how many 
entries the DDS should advance every
  reference input clock cycle, 
then it pushes that amplitude value in the
  look-up table
  to the 
output D-A converter.
  
  So, if the input reference is 20 MHz, 
then the DDS can generate frequencies
  with a resolution step of
  
    Vref/2^32  =  20,000,000 / 4,294,967,296  =  0.0046566 
Hz.
  
  The DDS output frequency is(tuning word /2^32) times 
Vref.
  
  In the actual implementation, rather than a 4 billion 
entry look-up table,
  I am sure they have some algorithm that 
calculates the amplitude of
  a cosine wave, or a much smaller table 
with a sophisticated interpolation
  routine.
  
  --- Graham / 
KE9H

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

Re: [time-nuts] [Bulk] Re: Windows app for FE5680 info dump

2012-01-27 Thread J. L. Trantham
Same thing happened to me.  AVG has no problem with it.  I turned off
Symantec, downloaded it, saved it, and proceeded.

I have not yet installed it though.

Joe

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Rob Kimberley
Sent: Friday, January 27, 2012 5:41 AM
To: 'Discussion of precise time and frequency measurement'
Subject: [Bulk] Re: [time-nuts] Windows app for FE5680 info dump

I downloaded it OK, but Symantec didn't like it and deleted it.

Doh!!!

Rob K

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Don Latham
Sent: 27 January 2012 01:09
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Windows app for FE5680 info dump

I'd like to try this program, but my browser simply times out at the URL
supplied below. Is it right at:
http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
???
thanks
Don


paul swed
 Newell
 Your program worked just fine.
 Here is my units info
 Markings
 FE5680a 66576 is the model and SN is 0337-65040 Captured the system 
 cold at turn on and then warm and locked All in the txt doc Regards 
 Paul WB8TSL

 On Wed, Jan 25, 2012 at 2:37 PM, Chuck Forsberg WA7KGX N2469R
 c...@omen.comwrote:

 Here is the output from my 2nd 5680a
 Running Win 7 64 bit COM8 via two headed USB to RS232 cable from Frys


 On 01/24/2012 08:08 PM, paul swed wrote:

 Newell that explains that. Let me try tomorrow at the command line 
 level.
 Thanks

 On Tue, Jan 24, 2012 at 9:37 PM, Scott 
 Newellnewell+timenuts@n5tnl.**comnewell%2btimen...@n5tnl.com
 wrote:

  I've been asked for a windows version of the FE5680 info dump app, 
 so
 here
 it is:
 http://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.ex
 ehttp://n5tnl.com/time/fe-**5680a/control/fe5680_info_**win32.exe
 http://n5tnl.com/**time/fe-5680a/control/fe5680_**info_win32.exeh
 ttp://n5tnl.com/time/fe-5680a/control/fe5680_info_win32.exe
 


 Please let me know if you have any trouble.  It's a command line 
 program that's expecting a com port number as the only parameter 
 (fe5680_info_win32.exe 1 for com 1).  It'll dump the replies to 
 all the commands we know of in both hex and ascii.

 If you try it out, please send me a copy of your results.


 thanks!
 newell  N5TNL


 ___

 time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to 
 https://www.febo.com/cgi-bin/https://www.febo.com/cgi-bin/**
 mailman/listinfo/time-nutshtt**ps://www.febo.com/cgi-bin/**
 mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/lis
 tinfo/time-nuts
 

 and follow the instructions there.

  __**_
 time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to 
 https://www.febo.com/cgi-bin/** 
 mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/list
 info/time-nuts
 and follow the instructions there.


 --
 Chuck Forsberg WA7KGX N2469R c...@omen.com   www.omen.com
 Developer of Industrial ZMODEM(Tm) for Embedded Applications
  Omen Technology Inc  The High Reliability Software
 10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430


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


-- 
Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind.
R. Bacon
If you don't know what it is, don't poke it.
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com



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


Re: [time-nuts] [Bulk] Re: Windows app for FE5680 info dump

2012-01-27 Thread Scott Newell

At 06:17 PM 1/27/2012, J. L. Trantham wrote:

Same thing happened to me.  AVG has no problem with it.  I turned off
Symantec, downloaded it, saved it, and proceeded.


I don't really think there's much I can do.  I sent in a false 
positive report to Norton/Symantec, but I got back the dreaded can't 
dupe reply.  From what I found online, if you're getting a 
reputation message, it's because they've not seen the executable 
enough times to trust it (or something like that).


Here's their latest message to me:

We are writing in relation to your submission through Symantec's 
on-line Security Risk / False Positive Dispute Submission form for 
your software being detected by Symantec Software. After downloading, 
installing and scanning your software with Symantec's latest 
definitions we have been unable to reproduce this detection. Can we 
please ask you to ensure that you are using Symantec's latest virus 
definitions for detection? They can be found using live update or 
alternatively from the URL below.


http://securityresponse.symantec.com/avcenter/defs.download.html

Due to not being able to reproduce this issue we require the 
additional information below to progress the dispute.


* The message or a screen shot of the message received

* A specific URL to download the software

* Exact instructions on how to recreate issue

* Symantec product and version being used for detection

If this dispute is no longer valid please respond to this email and 
we will close off the dispute.


Please respond to this email within 14 days with all questions or 
requests above answered. Failure to respond to this email within 14 
days will deem the Security Risk Dispute submission to be no longer 
valid and initiate a closure procedure. Once closed a new submission 
for the same issue can be opened up to two times. Each new submission 
is subject to the time frame for response of a further week from the 
submission date.


Sincerely,

Symantec Security Response


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


Re: [time-nuts] [Bulk] Re: [Bulk] Re: Windows app for FE5680 info dump

2012-01-27 Thread J. L. Trantham
Perhaps this means that if you try it now, it will work.

Joe

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Scott Newell
Sent: Friday, January 27, 2012 7:41 PM
To: Discussion of precise time and frequency measurement
Subject: [Bulk] Re: [time-nuts] [Bulk] Re: Windows app for FE5680 info dump

At 06:17 PM 1/27/2012, J. L. Trantham wrote:
Same thing happened to me.  AVG has no problem with it.  I turned off
Symantec, downloaded it, saved it, and proceeded.

I don't really think there's much I can do.  I sent in a false 
positive report to Norton/Symantec, but I got back the dreaded can't 
dupe reply.  From what I found online, if you're getting a 
reputation message, it's because they've not seen the executable 
enough times to trust it (or something like that).

Here's their latest message to me:

We are writing in relation to your submission through Symantec's 
on-line Security Risk / False Positive Dispute Submission form for 
your software being detected by Symantec Software. After downloading, 
installing and scanning your software with Symantec's latest 
definitions we have been unable to reproduce this detection. Can we 
please ask you to ensure that you are using Symantec's latest virus 
definitions for detection? They can be found using live update or 
alternatively from the URL below.

http://securityresponse.symantec.com/avcenter/defs.download.html

Due to not being able to reproduce this issue we require the 
additional information below to progress the dispute.

* The message or a screen shot of the message received

* A specific URL to download the software

* Exact instructions on how to recreate issue

* Symantec product and version being used for detection

If this dispute is no longer valid please respond to this email and 
we will close off the dispute.

Please respond to this email within 14 days with all questions or 
requests above answered. Failure to respond to this email within 14 
days will deem the Security Risk Dispute submission to be no longer 
valid and initiate a closure procedure. Once closed a new submission 
for the same issue can be opened up to two times. Each new submission 
is subject to the time frame for response of a further week from the 
submission date.

Sincerely,

Symantec Security Response


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


Re: [time-nuts] [Bulk] Re: Windows app for FE5680 info dump

2012-01-27 Thread Don Latham
Right. Call it .jpg and mail away.
Don

Scott Newell
 At 06:17 PM 1/27/2012, J. L. Trantham wrote:
Same thing happened to me.  AVG has no problem with it.  I turned off
Symantec, downloaded it, saved it, and proceeded.

 I don't really think there's much I can do.  I sent in a false
 positive report to Norton/Symantec, but I got back the dreaded can't
 dupe reply.  From what I found online, if you're getting a
 reputation message, it's because they've not seen the executable
 enough times to trust it (or something like that).

 Here's their latest message to me:

 We are writing in relation to your submission through Symantec's
 on-line Security Risk / False Positive Dispute Submission form for
 your software being detected by Symantec Software. After downloading,
 installing and scanning your software with Symantec's latest
 definitions we have been unable to reproduce this detection. Can we
 please ask you to ensure that you are using Symantec's latest virus
 definitions for detection? They can be found using live update or
 alternatively from the URL below.

 http://securityresponse.symantec.com/avcenter/defs.download.html

 Due to not being able to reproduce this issue we require the
 additional information below to progress the dispute.

 * The message or a screen shot of the message received

 * A specific URL to download the software

 * Exact instructions on how to recreate issue

 * Symantec product and version being used for detection

 If this dispute is no longer valid please respond to this email and
 we will close off the dispute.

 Please respond to this email within 14 days with all questions or
 requests above answered. Failure to respond to this email within 14
 days will deem the Security Risk Dispute submission to be no longer
 valid and initiate a closure procedure. Once closed a new submission
 for the same issue can be opened up to two times. Each new submission
 is subject to the time frame for response of a further week from the
 submission date.

 Sincerely,

 Symantec Security Response


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



-- 
Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind.
R. Bacon
If you don't know what it is, don't poke it.
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com



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