Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Gabs Ricalde
For serial to Ethernet I use ser2net [1] on cheap wireless routers
using the serial port pads on the board and a Beaglebone. The
application I use (u-blox u-center) can use TCP connections, if you
require a real COM port on Windows com0com and com2tcp [2] should work.

ser2net sends one TCP packet per character received on the serial port,
this may be desirable (when you need the lowest latency) or not (when
you want to reduce packet overhead)

[1] http://ser2net.sourceforge.net/
[2] http://com0com.sourceforge.net/

On Sun, Jan 27, 2013 at 9:47 PM, Stan, W1LE stanw...@verizon.net wrote:
 Hello The Net:

 Yes, I have had the mouse problem, but the more serious issue is when I run
 multiple (3) instances of Lady Heather
 (latest version at KE5FX) and after awhile none of the times agree and the
 problem only gets worse with time.
 I have tried the multiple USB to RS232 adapters into motherboard USB ports
 and I have tried a multi USB port PCI card.

 Any solutions with this problem ?

 Stan, W1LECape CodFN41sr



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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Hal Murray

 If it were me, I remove the LCD display.  I don't see a need when everyone
 today has a phone.  the little AVR chip can bit-bang a UDP packet once per
 second and put it on your wifi router.  That cuts the parts cost by 1/3rd
 and the display will be where you can see it, on the phone or computer.

There are still a few of us who don't have cell phones.  :(

I split the problem into two areas:
  Collecting the data
  Displaying it

If I'm collecting data, I want to be able to look back over hours, days, 
months, or even years.  That means I probably want to backup/archive it too.

100 characters of text every 10 seconds is under a megabyte per day.  That's 
small relative to modern disks, medium relative to thumb drives or SD cards 
and small to medium relative to RAM (or ramdisk).  [I generally chop things 
up into a file per day.]

So far, I've always had a handy Linux box running 24x7 when I wanted to 
collect data, so I've never tried to use a smaller system.  Since the data is 
collected on a real system, it's easy to display it any way I like.

I won't be surprised if a project comes along where I want something like a 
small uP to grab careful timing data.  Until then, I'll keep collecting my 
data on a real PC.



Does anybody have data on lifetime of Thumb/SD cards if you flush a log file 
every 10 seconds?

What type of file systems are supported with whatever OS comes with small 
uPs?  Is there any work on flash-friendly file systems for append-only log 
files?

A year or 3 ago, I did some work on logging to ramdisk and occasionally 
copying to hard disk.  The idea was that the hard disk would be spun-down 
most of the time, saving a lot of power.  It didn't save much so I bailed on 
that project.  I assume that means the power to keep the disk spinning is low 
relative to the power to keep the electronics going.  Maybe I just botched 
the experiment.


flushing the file after each line is the simple way to make (mostly) sure 
that your data gets to disk in case the system crashes, but it turns into 
several disk writes each line.  That's no big deal for a lightly loaded 
hard drive but gets interesting in terms of total writes to flash drives.

You could, of course, fix the code to only do the flush once every N minutes, 
or only when something interesting happens...


-- 
These are my opinions.  I hate spam.



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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Bob Camp
Hi
On Aug 24, 2013, at 1:37 AM, David J Taylor david-tay...@blueyonder.co.uk 
wrote:

 Hi
 
 Pardon my interjection …. but.
 
 For a simple TBolt monitor, *any* OS is total overkill. If all you have is a 
 small / simple display - you can't put much up there. For a monitor you don't 
 have a keyboard / mouse / usb touchpad / Bluetooth presentation wand. Nothing 
 to do and nothing to control.  One big loop and not a lot else will do the 
 trick with lots of time left over. If you want to go crazy, run one of the 
 free RTOS distributions that the semiconductor companies give away. Freescale 
 passes out MQX / MQX-lite. The others have similar stuff. They all have way 
 more in them than this sort of application requires.
 
 Bob
 
 
 Sounds like a job for the Raspberry Pi.  Low-cost, low-power, has serial I/O, 
 and yet can still be programmed in C/C++ or Pascal/Delphi, can run a Web 
 server, so you can perhaps re-use existing code from another OS. Low-cost 
 displays available too.  I'm using one of my RPi cards as a digital wall 
 clock - no keyboard, mouse etc., and can be accessed over the 'net if needed.
 

Not really. In order to get anything done on a Pi you need a high level OS. 
It's a very complex part. If the objective is a low power install, the display 
that the Pi runs will nuke your budget big time. You are using a school bus to 
haul around one student. Yes it can be done, for an efficient design it's not 
the way to go. 

Bob

 David
 -- 
 SatSignal Software - Quality software written to your requirements
 Web: http://www.satsignal.eu
 Email: david-tay...@blueyonder.co.uk 
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Bob Camp
Hi

If you are going to generate proper Ethernet UDP (or WiFi) that's going to 
involve a bit more hardware…

Bob

On Aug 24, 2013, at 12:04 AM, Chris Albertson albertson.ch...@gmail.com wrote:

 There was one just posted here using the Atmel AVR chip.  He used a total
 of about $12 in parts.  You could use a TI Launchpad if you don't like
 soldering and still spend less than $20.   And as was said, no OS at al.
 It is simply not required for such a simple job.
 
 If it were me, I remove the LCD display.  I don't see a need when everyone
 today has a phone.  the little AVR chip can bit-bang a UDP packet once per
 second and put it on your wifi router.  That cuts the parts cost by 1/3rd
 and the display will be where you can see it, on the phone or computer.
 
 
 
 On Fri, Aug 23, 2013 at 6:29 PM, Bob Camp li...@rtty.us wrote:
 
 Hi
 
 Pardon my interjection …. but.
 
 For a simple TBolt monitor, *any* OS is total overkill. If all you have is
 a small / simple display - you can't put much up there. For a monitor you
 don't have a keyboard / mouse / usb touchpad / Bluetooth presentation wand.
 Nothing to do and nothing to control.  One big loop and not a lot else will
 do the trick with lots of time left over. If you want to go crazy, run one
 of the free RTOS distributions that the semiconductor companies give away.
 Freescale passes out MQX / MQX-lite. The others have similar stuff. They
 all have way more in them than this sort of application requires.
 
 Bob
 
 On Aug 23, 2013, at 9:17 PM, David I. Emery d...@dieconsulting.com wrote:
 
 On Sun, Jan 27, 2013 at 06:47:07PM -0500, Peter Gottlieb wrote:
 What I would really like in Windows is a way to lock the configuration
 and
 make it more of an appliance which always worked the same way.  That
 way a
 small board talking to a Thunderbolt would always start up and just
 run.  I
 suppose I need to get away from Windows and climb the Linux learning
 curve.
 
  Yes, or become a Windows kernel maven.
 
  It IS possible to figure some of this out, but Windows internally
 is somewhat bizzare...
 
  Linux is nice in that you can look at the code if it comes to
 that (and if you are really desperate and willing to pay the price,
 change it too)...
 
 
 --
 Dave Emery N1PRE/AE, d...@dieconsulting.com  DIE Consulting, Weston,
 Mass 02493
 An empty zombie mind with a forlorn barely readable weatherbeaten
 'For Rent' sign still vainly flapping outside on the weed encrusted pole
 - in
 celebration of what could have been, but wasn't and is not to be now
 either.
 
 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to
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 To unsubscribe, go to
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 -- 
 
 Chris Albertson
 Redondo Beach, California
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Bob Camp
Hi

On Aug 24, 2013, at 3:27 AM, Hal Murray hmur...@megapathdsl.net wrote:

 
 If it were me, I remove the LCD display.  I don't see a need when everyone
 today has a phone.  the little AVR chip can bit-bang a UDP packet once per
 second and put it on your wifi router.  That cuts the parts cost by 1/3rd
 and the display will be where you can see it, on the phone or computer.
 
 There are still a few of us who don't have cell phones.  :(
 
 I split the problem into two areas:
  Collecting the data
  Displaying it
 
 If I'm collecting data, I want to be able to look back over hours, days, 
 months, or even years.  That means I probably want to backup/archive it too.
 
 100 characters of text every 10 seconds is under a megabyte per day.  That's 
 small relative to modern disks, medium relative to thumb drives or SD cards 
 and small to medium relative to RAM (or ramdisk).  [I generally chop things 
 up into a file per day.]

That's a *lot* more than a simple monitor. Once you get past simple you 
already have LH and a lot of hardware that will run it just fine.

Bob

 
 So far, I've always had a handy Linux box running 24x7 when I wanted to 
 collect data, so I've never tried to use a smaller system.  Since the data is 
 collected on a real system, it's easy to display it any way I like.
 
 I won't be surprised if a project comes along where I want something like a 
 small uP to grab careful timing data.  Until then, I'll keep collecting my 
 data on a real PC.
 
 
 
 Does anybody have data on lifetime of Thumb/SD cards if you flush a log file 
 every 10 seconds?
 
 What type of file systems are supported with whatever OS comes with small 
 uPs?  Is there any work on flash-friendly file systems for append-only log 
 files?
 
 A year or 3 ago, I did some work on logging to ramdisk and occasionally 
 copying to hard disk.  The idea was that the hard disk would be spun-down 
 most of the time, saving a lot of power.  It didn't save much so I bailed on 
 that project.  I assume that means the power to keep the disk spinning is low 
 relative to the power to keep the electronics going.  Maybe I just botched 
 the experiment.
 
 
 flushing the file after each line is the simple way to make (mostly) sure 
 that your data gets to disk in case the system crashes, but it turns into 
 several disk writes each line.  That's no big deal for a lightly loaded 
 hard drive but gets interesting in terms of total writes to flash drives.
 
 You could, of course, fix the code to only do the flush once every N minutes, 
 or only when something interesting happens...
 
 
 -- 
 These are my opinions.  I hate spam.
 
 
 
 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread David J Taylor

From: Bob Camp
[]
Not really. In order to get anything done on a Pi you need a high level OS. 
It's a very complex part. If the objective is a low power install, the 
display that the Pi runs will nuke your budget big time. You are using a 
school bus to haul around one student. Yes it can be done, for an efficient 
design it's not the way to go.


Bob


The Raspberry Pi uses about 4 watts, and with Web server output or using SSH 
no display, keyboard or mouse is needed.  It's like walking, no need for 
powered transport!


Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk 


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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread paul swed
OK I may be late to the game here.
Using a great device to solve my rs232 port problems. Its a did TS serial
poer server.
They make them in 16 ports and smaller. Essentially it translates the ports
to ethernet and everything I have can then use the rs232 devices. The ports
stay put unlike USB thats been a pain actually. Multiple workstations and
such can access the ports. They can translate say port 16 so that it looks
like com3
First 16 port was free. The 8 ports cost a wopping $5. Nobody knows what
these things are so no value.
I didn't till I stumbled into 1at work that was getting tossed and the
light bulb lit up.
Currently integrating them into the systems
Good luck
Paul
WB8TSL


On Sat, Aug 24, 2013 at 7:35 AM, Bob Camp li...@rtty.us wrote:

 Hi

 On Aug 24, 2013, at 3:27 AM, Hal Murray hmur...@megapathdsl.net wrote:

 
  If it were me, I remove the LCD display.  I don't see a need when
 everyone
  today has a phone.  the little AVR chip can bit-bang a UDP packet once
 per
  second and put it on your wifi router.  That cuts the parts cost by
 1/3rd
  and the display will be where you can see it, on the phone or computer.
 
  There are still a few of us who don't have cell phones.  :(
 
  I split the problem into two areas:
   Collecting the data
   Displaying it
 
  If I'm collecting data, I want to be able to look back over hours, days,
  months, or even years.  That means I probably want to backup/archive it
 too.
 
  100 characters of text every 10 seconds is under a megabyte per day.
  That's
  small relative to modern disks, medium relative to thumb drives or SD
 cards
  and small to medium relative to RAM (or ramdisk).  [I generally chop
 things
  up into a file per day.]

 That's a *lot* more than a simple monitor. Once you get past simple you
 already have LH and a lot of hardware that will run it just fine.

 Bob

 
  So far, I've always had a handy Linux box running 24x7 when I wanted to
  collect data, so I've never tried to use a smaller system.  Since the
 data is
  collected on a real system, it's easy to display it any way I like.
 
  I won't be surprised if a project comes along where I want something
 like a
  small uP to grab careful timing data.  Until then, I'll keep collecting
 my
  data on a real PC.
 
  
 
  Does anybody have data on lifetime of Thumb/SD cards if you flush a log
 file
  every 10 seconds?
 
  What type of file systems are supported with whatever OS comes with small
  uPs?  Is there any work on flash-friendly file systems for append-only
 log
  files?
 
  A year or 3 ago, I did some work on logging to ramdisk and occasionally
  copying to hard disk.  The idea was that the hard disk would be spun-down
  most of the time, saving a lot of power.  It didn't save much so I
 bailed on
  that project.  I assume that means the power to keep the disk spinning
 is low
  relative to the power to keep the electronics going.  Maybe I just
 botched
  the experiment.
 
 
  flushing the file after each line is the simple way to make (mostly) sure
  that your data gets to disk in case the system crashes, but it turns into
  several disk writes each line.  That's no big deal for a lightly loaded
  hard drive but gets interesting in terms of total writes to flash drives.
 
  You could, of course, fix the code to only do the flush once every N
 minutes,
  or only when something interesting happens...
 
 
  --
  These are my opinions.  I hate spam.
 
 
 
  ___
  time-nuts mailing list -- time-nuts@febo.com
  To unsubscribe, go to
 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-24 Thread Don Latham
OK, OK, from another of my lists:
http://www.youtube.com/watch?v=kQFKtI6gn9Y
Don
David J Taylor
 From: Bob Camp
 []
 Not really. In order to get anything done on a Pi you need a high level
 OS.
 It's a very complex part. If the objective is a low power install, the
 display that the Pi runs will nuke your budget big time. You are using a
 school bus to haul around one student. Yes it can be done, for an
 efficient
 design it's not the way to go.

 Bob
 

 The Raspberry Pi uses about 4 watts, and with Web server output or using
 SSH
 no display, keyboard or mouse is needed.  It's like walking, no need for
 powered transport!

 Cheers,
 David
 --
 SatSignal Software - Quality software written to your requirements
 Web: http://www.satsignal.eu
 Email: david-tay...@blueyonder.co.uk

 ___
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-- 
“The power of accurate observation is commonly called cynicism by those
who have not got it.”
-George Bernard Shaw



Dr. Don Latham AJ7LL
Six Mile Systems LLC
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
Skype: buffler2
www.lightningforensics.com
www.sixmilesystems.com


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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-23 Thread David I. Emery
On Sun, Jan 27, 2013 at 06:47:07PM -0500, Peter Gottlieb wrote:
 What I would really like in Windows is a way to lock the configuration and 
 make it more of an appliance which always worked the same way.  That way a 
 small board talking to a Thunderbolt would always start up and just run.  I 
 suppose I need to get away from Windows and climb the Linux learning curve.

Yes, or become a Windows kernel maven.

It IS possible to figure some of this out, but Windows internally
is somewhat bizzare...

Linux is nice in that you can look at the code if it comes to
that (and if you are really desperate and willing to pay the price,
change it too)...


-- 
  Dave Emery N1PRE/AE, d...@dieconsulting.com  DIE Consulting, Weston, Mass 
02493
An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
celebration of what could have been, but wasn't and is not to be now either.

___
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-23 Thread Bob Camp
Hi

Pardon my interjection …. but.

For a simple TBolt monitor, *any* OS is total overkill. If all you have is a 
small / simple display - you can't put much up there. For a monitor you don't 
have a keyboard / mouse / usb touchpad / Bluetooth presentation wand. Nothing 
to do and nothing to control.  One big loop and not a lot else will do the 
trick with lots of time left over. If you want to go crazy, run one of the free 
RTOS distributions that the semiconductor companies give away. Freescale passes 
out MQX / MQX-lite. The others have similar stuff. They all have way more in 
them than this sort of application requires.

Bob

On Aug 23, 2013, at 9:17 PM, David I. Emery d...@dieconsulting.com wrote:

 On Sun, Jan 27, 2013 at 06:47:07PM -0500, Peter Gottlieb wrote:
 What I would really like in Windows is a way to lock the configuration and 
 make it more of an appliance which always worked the same way.  That way a 
 small board talking to a Thunderbolt would always start up and just run.  I 
 suppose I need to get away from Windows and climb the Linux learning curve.
 
   Yes, or become a Windows kernel maven.
 
   It IS possible to figure some of this out, but Windows internally
 is somewhat bizzare...
 
   Linux is nice in that you can look at the code if it comes to
 that (and if you are really desperate and willing to pay the price,
 change it too)...
 
 
 -- 
  Dave Emery N1PRE/AE, d...@dieconsulting.com  DIE Consulting, Weston, Mass 
 02493
 An empty zombie mind with a forlorn barely readable weatherbeaten
 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
 celebration of what could have been, but wasn't and is not to be now either.
 
 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-23 Thread David J Taylor

Hi

Pardon my interjection …. but.

For a simple TBolt monitor, *any* OS is total overkill. If all you have is a 
small / simple display - you can't put much up there. For a monitor you 
don't have a keyboard / mouse / usb touchpad / Bluetooth presentation wand. 
Nothing to do and nothing to control.  One big loop and not a lot else will 
do the trick with lots of time left over. If you want to go crazy, run one 
of the free RTOS distributions that the semiconductor companies give away. 
Freescale passes out MQX / MQX-lite. The others have similar stuff. They 
all have way more in them than this sort of application requires.


Bob


Sounds like a job for the Raspberry Pi.  Low-cost, low-power, has serial 
I/O, and yet can still be programmed in C/C++ or Pascal/Delphi, can run a 
Web server, so you can perhaps re-use existing code from another OS. 
Low-cost displays available too.  I'm using one of my RPi cards as a digital 
wall clock - no keyboard, mouse etc., and can be accessed over the 'net if 
needed.


David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk 


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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-08-23 Thread Chris Albertson
There was one just posted here using the Atmel AVR chip.  He used a total
of about $12 in parts.  You could use a TI Launchpad if you don't like
soldering and still spend less than $20.   And as was said, no OS at al.
 It is simply not required for such a simple job.

If it were me, I remove the LCD display.  I don't see a need when everyone
today has a phone.  the little AVR chip can bit-bang a UDP packet once per
second and put it on your wifi router.  That cuts the parts cost by 1/3rd
and the display will be where you can see it, on the phone or computer.



On Fri, Aug 23, 2013 at 6:29 PM, Bob Camp li...@rtty.us wrote:

 Hi

 Pardon my interjection …. but.

 For a simple TBolt monitor, *any* OS is total overkill. If all you have is
 a small / simple display - you can't put much up there. For a monitor you
 don't have a keyboard / mouse / usb touchpad / Bluetooth presentation wand.
 Nothing to do and nothing to control.  One big loop and not a lot else will
 do the trick with lots of time left over. If you want to go crazy, run one
 of the free RTOS distributions that the semiconductor companies give away.
 Freescale passes out MQX / MQX-lite. The others have similar stuff. They
 all have way more in them than this sort of application requires.

 Bob

 On Aug 23, 2013, at 9:17 PM, David I. Emery d...@dieconsulting.com wrote:

  On Sun, Jan 27, 2013 at 06:47:07PM -0500, Peter Gottlieb wrote:
  What I would really like in Windows is a way to lock the configuration
 and
  make it more of an appliance which always worked the same way.  That
 way a
  small board talking to a Thunderbolt would always start up and just
 run.  I
  suppose I need to get away from Windows and climb the Linux learning
 curve.
 
Yes, or become a Windows kernel maven.
 
It IS possible to figure some of this out, but Windows internally
  is somewhat bizzare...
 
Linux is nice in that you can look at the code if it comes to
  that (and if you are really desperate and willing to pay the price,
  change it too)...
 
 
  --
   Dave Emery N1PRE/AE, d...@dieconsulting.com  DIE Consulting, Weston,
 Mass 02493
  An empty zombie mind with a forlorn barely readable weatherbeaten
  'For Rent' sign still vainly flapping outside on the weed encrusted pole
 - in
  celebration of what could have been, but wasn't and is not to be now
 either.
 
  ___
  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.

 ___
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 To unsubscribe, go to
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-- 

Chris Albertson
Redondo Beach, California
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[time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Stan, W1LE

Hello The Net:

Yes, I have had the mouse problem, but the more serious issue is when I 
run multiple (3) instances of Lady Heather
(latest version at KE5FX) and after awhile none of the times agree and 
the problem only gets worse with time.
I have tried the multiple USB to RS232 adapters into motherboard USB 
ports and I have tried a multi USB port PCI card.


Any solutions with this problem ?

Stan, W1LECape CodFN41sr



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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Don Latham
At the risk of seeming flippant, may I suggest Linux?
Don

Stan, W1LE
 Hello The Net:

 Yes, I have had the mouse problem, but the more serious issue is when I
 run multiple (3) instances of Lady Heather
 (latest version at KE5FX) and after awhile none of the times agree and
 the problem only gets worse with time.
 I have tried the multiple USB to RS232 adapters into motherboard USB
 ports and I have tried a multi USB port PCI card.

 Any solutions with this problem ?

 Stan, W1LECape CodFN41sr



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are as significant as experiment, for thence comes quiet to the mind.
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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
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VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com


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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Peter Gottlieb
At work we simply use multi port serial cards (*no* USB intermediary) or 
Ethernet to serial adapters.  Any use of USB for critical test equipment was 
pretty much banned here years ago.



On 1/27/2013 8:47 AM, Stan, W1LE wrote:

Hello The Net:

Yes, I have had the mouse problem, but the more serious issue is when I run 
multiple (3) instances of Lady Heather
(latest version at KE5FX) and after awhile none of the times agree and the 
problem only gets worse with time.
I have tried the multiple USB to RS232 adapters into motherboard USB ports and 
I have tried a multi USB port PCI card.


Any solutions with this problem ?

Stan, W1LECape CodFN41sr



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No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1430 / Virus Database: 2639/5561 - Release Date: 01/27/13




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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread bownes
The problem with the Ethernet adapters is the lack of software support on the 
OS side. I'd have gone to that long ago if I could point any bit if software at 
a serial port that was actually on a terminal server out on the ip fabric. 

On Jan 27, 2013, at 12:30, Peter Gottlieb n...@verizon.net wrote:

 At work we simply use multi port serial cards (*no* USB intermediary) or 
 Ethernet to serial adapters.  Any use of USB for critical test equipment was 
 pretty much banned here years ago.
 
 
 On 1/27/2013 8:47 AM, Stan, W1LE wrote:
 Hello The Net:
 
 Yes, I have had the mouse problem, but the more serious issue is when I run 
 multiple (3) instances of Lady Heather
 (latest version at KE5FX) and after awhile none of the times agree and the 
 problem only gets worse with time.
 I have tried the multiple USB to RS232 adapters into motherboard USB ports 
 and I have tried a multi USB port PCI card.
 
 Any solutions with this problem ?
 
 Stan, W1LECape CodFN41sr
 
 
 
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 -
 No virus found in this message.
 Checked by AVG - www.avg.com
 Version: 10.0.1430 / Virus Database: 2639/5561 - Release Date: 01/27/13
 
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Jim Lux

On 1/27/13 9:30 AM, Peter Gottlieb wrote:

At work we simply use multi port serial cards (*no* USB intermediary) or
Ethernet to serial adapters.  Any use of USB for critical test equipment
was pretty much banned here years ago.



Why the proscription against USB?
Because of difficulty with USB device drivers? Or the plethora of serial 
port emulators that have unforeseen interactions with software that 
thinks it's talking to a real serial port? or what?




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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Bob Bownes
There are some well documented issues with timing and USB that have been
rehashed here a few times.


On Sun, Jan 27, 2013 at 1:48 PM, Jim Lux jim...@earthlink.net wrote:

 On 1/27/13 9:30 AM, Peter Gottlieb wrote:

 At work we simply use multi port serial cards (*no* USB intermediary) or
 Ethernet to serial adapters.  Any use of USB for critical test equipment
 was pretty much banned here years ago.


  Why the proscription against USB?
 Because of difficulty with USB device drivers? Or the plethora of serial
 port emulators that have unforeseen interactions with software that thinks
 it's talking to a real serial port? or what?




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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Jim Lux

On 1/27/13 11:01 AM, Bob Bownes wrote:

There are some well documented issues with timing and USB that have been
rehashed here a few times.

Sure, the timing isn't really , really predictable  (8kHz frame rate and 
all that).. but assuming you're just controlling something where you 
need 10s or 100s of millisecond timing and shoving data back and forth..






On Sun, Jan 27, 2013 at 1:48 PM, Jim Lux jim...@earthlink.net wrote:


On 1/27/13 9:30 AM, Peter Gottlieb wrote:


At work we simply use multi port serial cards (*no* USB intermediary) or
Ethernet to serial adapters.  Any use of USB for critical test equipment
was pretty much banned here years ago.


  Why the proscription against USB?

Because of difficulty with USB device drivers? Or the plethora of serial
port emulators that have unforeseen interactions with software that thinks
it's talking to a real serial port? or what?



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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Ed Palmer
I use a Digi serial to ethernet terminal server for various serial 
devices.  You put the client software on your PC and the terminal server 
ports show up as COM ports on the PC.  This keeps the physical COM ports 
free for any critical timing applications.


Drivers are available for Windows 98 to Win7, Debian, Ubuntu, Fedora, 
Solaris, AIX, HPUX, etc.  Seems like a reasonable list of operating systems.


Am I missing something?

Ed

On 1/27/2013 12:37 PM, bownes wrote:

The problem with the Ethernet adapters is the lack of software support on the 
OS side. I'd have gone to that long ago if I could point any bit if software at 
a serial port that was actually on a terminal server out on the ip fabric.

On Jan 27, 2013, at 12:30, Peter Gottlieb n...@verizon.net wrote:


At work we simply use multi port serial cards (*no* USB intermediary) or 
Ethernet to serial adapters.  Any use of USB for critical test equipment was 
pretty much banned here years ago.


On 1/27/2013 8:47 AM, Stan, W1LE wrote:

Hello The Net:

Yes, I have had the mouse problem, but the more serious issue is when I run 
multiple (3) instances of Lady Heather
(latest version at KE5FX) and after awhile none of the times agree and the 
problem only gets worse with time.
I have tried the multiple USB to RS232 adapters into motherboard USB ports and 
I have tried a multi USB port PCI card.

Any solutions with this problem ?

Stan, W1LECape CodFN41sr



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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Peter Gottlieb
It came down to startup issues.  If every fifth time the system was turned on it 
wouldn't initialize properly and not see an airflow or whatever sensor, it 
required the calling of a tech from the test group to come over and get it 
going.  We run Labview but it was always a Windows problem as the devices 
wouldn't show up in Device Manager.


Peter



On 1/27/2013 1:48 PM, Jim Lux wrote:

On 1/27/13 9:30 AM, Peter Gottlieb wrote:

At work we simply use multi port serial cards (*no* USB intermediary) or
Ethernet to serial adapters.  Any use of USB for critical test equipment
was pretty much banned here years ago.



Why the proscription against USB?
Because of difficulty with USB device drivers? Or the plethora of serial port 
emulators that have unforeseen interactions with software that thinks it's 
talking to a real serial port? or what?




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No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1430 / Virus Database: 2639/5561 - Release Date: 01/27/13




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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Bob Camp
Hi

We've had better luck with the FTDI based parts than with the other USB serial 
gizmos. Even they do drop out every so often. With the modern drivers it's a 
lot more rare than it once was. With 32 ports on a system and several systems 
it's a once or twice a year sort of thing now. 

Bob

On Jan 27, 2013, at 2:28 PM, Peter Gottlieb n...@verizon.net wrote:

 It came down to startup issues.  If every fifth time the system was turned on 
 it wouldn't initialize properly and not see an airflow or whatever sensor, it 
 required the calling of a tech from the test group to come over and get it 
 going.  We run Labview but it was always a Windows problem as the devices 
 wouldn't show up in Device Manager.
 
 Peter
 
 
 
 On 1/27/2013 1:48 PM, Jim Lux wrote:
 On 1/27/13 9:30 AM, Peter Gottlieb wrote:
 At work we simply use multi port serial cards (*no* USB intermediary) or
 Ethernet to serial adapters.  Any use of USB for critical test equipment
 was pretty much banned here years ago.
 
 
 Why the proscription against USB?
 Because of difficulty with USB device drivers? Or the plethora of serial 
 port emulators that have unforeseen interactions with software that thinks 
 it's talking to a real serial port? or what?
 
 
 
 ___
 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.
 
 
 -
 No virus found in this message.
 Checked by AVG - www.avg.com
 Version: 10.0.1430 / Virus Database: 2639/5561 - Release Date: 01/27/13
 
 
 
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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Jim Lux

On 1/27/13 11:28 AM, Peter Gottlieb wrote:

It came down to startup issues.  If every fifth time the system was
turned on it wouldn't initialize properly and not see an airflow or
whatever sensor, it required the calling of a tech from the test group
to come over and get it going.  We run Labview but it was always a
Windows problem as the devices wouldn't show up in Device Manager.



Aha.. yes.. I  understand..  Especially if you have a bunch of widgets 
with the same manufacturer/device number. How do you know that the USB 
widget that was COM4 yesterday is still COM4 and not COM 5.





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Re: [time-nuts] Needed: The Real Serial USB Fix

2013-01-27 Thread Peter Gottlieb
What I would really like in Windows is a way to lock the configuration and make 
it more of an appliance which always worked the same way.  That way a small 
board talking to a Thunderbolt would always start up and just run.  I suppose I 
need to get away from Windows and climb the Linux learning curve.


Peter


On 1/27/2013 4:26 PM, Jim Lux wrote:

On 1/27/13 11:28 AM, Peter Gottlieb wrote:

It came down to startup issues.  If every fifth time the system was
turned on it wouldn't initialize properly and not see an airflow or
whatever sensor, it required the calling of a tech from the test group
to come over and get it going.  We run Labview but it was always a
Windows problem as the devices wouldn't show up in Device Manager.



Aha.. yes.. I  understand..  Especially if you have a bunch of widgets with 
the same manufacturer/device number. How do you know that the USB widget that 
was COM4 yesterday is still COM4 and not COM 5.





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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1430 / Virus Database: 2639/5561 - Release Date: 01/27/13




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