Re: [time-nuts] Looking for off-the-shelf device to timestamp multiple PPS inputs
Excellent, Tom. I missed it!
Don
Tom Van Baak
Hal, Don,
I too have tried all the PC-based (serial/parallel port) solutions.
As we discussed at lot with the TEC thread, they work pretty
well. But for general use, or stand-alone operation, what I use
for dirt cheap non-nanosecond timing is a TBolt-10MHz-driven
isochronous microcontroller.
tvb came up with just the perfect solution:
Details here:
http://www.leapsecond.com/pic/picpet.htm
/tvb
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--
"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
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
cheers,
Neville Michie
On 04/10/2011, at 6:54 AM, Tom Van Baak wrote:
Hal, Don,
I too have tried all the PC-based (serial/parallel port) solutions.
As we discussed at lot with the TEC thread, they work pretty
well. But for general use, or stand-alone operation, what I use
for dirt cheap non-nanosecond timing is a TBolt-10MHz-driven
isochronous microcontroller.
tvb came up with just the perfect solution:
Details here:
http://www.leapsecond.com/pic/picpet.htm
/tvb
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.
On 10/3/11 5:20 PM, Neville Michie wrote:
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
Hyperterm?
Minicom?
in a DOS box
mode COMn:9600,n,8,1
copy COMn filename
You could suffer great mental pain and use one of the various .NET
flavors, each of which has a different interface to the com ports, and
crank out something in Visual C# Express Edition.
I use a freebie language called Robot Basic. It is very flexible, easy
to use, has a yahoo group of users, and the price is right! It will run
on any of the Win os's and does not require installation, that is does
not use the pesky .net or the registry. .exe files can be made, too.
Don
Neville Michie
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
cheers,
Neville Michie
On 04/10/2011, at 6:54 AM, Tom Van Baak wrote:
Hal, Don,
I too have tried all the PC-based (serial/parallel port) solutions.
As we discussed at lot with the TEC thread, they work pretty
well. But for general use, or stand-alone operation, what I use
for dirt cheap non-nanosecond timing is a TBolt-10MHz-driven
isochronous microcontroller.
tvb came up with just the perfect solution:
Details here:
http://www.leapsecond.com/pic/picpet.htm
/tvb
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
On Mon, Oct 3, 2011 at 5:20 PM, Neville Michie namichie@gmail.com wrote:
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
I don't think you need anything very complex for that. One could
simply "cat" the serial port device to a log file
cat /dev/tty01 | somename.log
Anyone who could build a uP powered device could figure out somethig
even nicer in about 5 seconds using Perl, Python or whatever.
Chris Albertson
Redondo Beach, California
On 10/3/11 5:20 PM, Neville Michie wrote:
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
Hyperterm?
Minicom?
in a DOS box:
mode COMn:9600,n,8,1
copy COMn filename
You could suffer great mental pain and use one of the various .NET flavors, each of which has a different interface to the com ports,
and crank out something in Visual C# Express Edition.
Or you could suffer less mental pain, and use C++ boost to get a cleaner interface to the com port. Works cross platform too, which cannot be said for the .NET serial stuff.
But for reading from com port and writing to file I'd say keep it simple. Which translates to your minicom suggestion or even the copy-in-a-dosbox on windoze, and just catting /dev/ttyS0 to your favorite file or pipe on linux.
regards,
Fred
That looks like a great solution for monitoring oscillators/GPSDOs.
Where to find an application that inputs RS232 and writes a file?
I don't think you need anything very complex for that. One could
simply "cat" the serial port device to a log file
cat /dev/tty01 | somename.log
I see someone beat me to it. ;)
Although around here we do:
cat /dev/ttyS0 > somename.log
and
cat /dev/ttyS0 | five_seconds_of_perl.pl
Anyone who could build a uP powered device could figure out somethig
even nicer in about 5 seconds using Perl, Python or whatever.
My thoughts exactly.