[time-nuts] Prologix GPIB Controllers on sale at SparkFun

[Prologix]

Hello all,
 
One of our distributors - SparkFun Electronics - is having a "free day" sale on 
Jan 7, 2010. The first 1000  orders placed between 9AM and 11PM (Mountain Time) 
on January 7, 2010 get a $100 discount.
 
You can find complete details at 
http://www.sparkfun.com/commerce/news.php?id=305
 
Prologix GPIB Controllers are listed at:
GPIB-USB - http://www.sparkfun.com/commerce/product_info.php?products_id=549
 
GPIB-ETHERNET - 
http://www.sparkfun.com/commerce/product_info.php?products_id=8841
 
[Note: All SparkFun products will be on sale, not just Prologix controllers.]
 
Regards,
Abdul
 
___
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] Prologix GPIB-USB vs. GPIB-LAN

[Prologix]

Some clarifications...

Prologix GPIB-USB and GPIB-LAN have identical command interfaces. Programs
written for one can be easily ported to the other. Both products are
compatible with EZGPIB and KE5FX GPIB toolkit applications.

GPIB-LAN, being a network device, does not require special drivers nor is
limited by USB cable tethering distance. Also, GPIB-LAN can be wireless
enabled (using a bridge).

GPIB-USB drivers are available for Windows Vista, Max OS X (Intel and
non-Intel), and for all common operating systems.

Python, C, C#, VB.Net, MATLAB and LabVIEW samples are available at our
website. (You can communicate with Prologix controllers using LabVIEW Serial
Port functions or TCP functions. However, they are not compatible with
programs (VIs) that use GPIB functions.)

Regards,
Abdul
http://prologix.biz 

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Hal Murray
Sent: Saturday, July 04, 2009 8:26 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix GPIB-USB vs. GPIB-LAN


> Thus the GPIB-LAN device should work with OS-X whereas the GPIB-USB 
> device will need a driver (currently there doesn't appear to be one so 
> you would need to roll your own).

I'd be surprised if it takes any driver work.

I have one of the older Prologix units.  It uses one of the FTDI USB to
serial chips.  I doubt if they have changed anything as drastic as this.

I haven't used OS-X.  There are 2 chips that have mostly cornered the market
on USB-to-serial adapters: FTDI and Prolific.  I expect most OSes (and
distributions) include well debugged drivers for both.



--
These are my opinions, not necessarily my employer's.  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
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] Prologix GPIB-USB vs. GPIB-LAN vs. NI was: AW:Prologix GPIB-USB vs. GPIB-LAN

[Prologix]

It is pretty straightforward to add a new command to turn on/off automatic
saving of configuration parameters in the next firmware update.
ETA is a week or two. Please email supp...@prologix.biz if you like to be
notified when the update is available.

Firmware updates may be downloaded from http://prologix.biz

Thanks for all the feedback!

Regards,
Abdul 
Prologix

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Samuel D. [x86/CPC]
Sent: Monday, July 06, 2009 10:08 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Prologix GPIB-USB vs. GPIB-LAN vs. NI was:
AW:Prologix GPIB-USB vs. GPIB-LAN

Damn, that's a big flaw. 

The software I'm working on send three "++addr" commands per second. 

Only 4 days @24h/day to reach the limit :-/


-Message d'origine-
De : time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] De la
part de Mark Sims Envoyé : lundi 6 juillet 2009 18:54 À : time-nuts@febo.com
Objet : [time-nuts] Prologix GPIB-USB vs. GPIB-LAN vs. NI was: AW: Prologix
GPIB-USB vs. GPIB-LAN


The Prologix adapter has a ++addr command for changing the GPIB address.
You can select different instruments that way.  

Unfortunately, the version I looked seems to have a potentially fatal flaw.
When you change the ++addr,  the device writes the internal microprocessor
EEPROM.  The EEPROM is speced a 1 million write cycles.  If you changed
instruments at once a second,  in under two weeks the chip could be toast.
My app could have worn out the chip in under a day...   

All this assumes that Prologix did not implement some sort of elaborate wear
leveling scheme in their software,  but I suspect not.  They seem to have
intended one to set up the device to talk to one instrument then save that
configuration in the chip.  Dynamically hammering the thing to death with
address changes was not the intention of the ++addr command.  

I wound up implementing  a GPIB controller (with Prologix emulator) with my
MegaDonkey touch screen LCD controller.  It even included a HPGL/PCL plotter
routine to draw instrument plots on the 160x80 LCD.







_
Windows Live™ SkyDrive™: Get 25 GB of free online storage.
http://windowslive.com/online/skydrive?ocid=TXT_TAGLM_WL_SD_25GB_062009
___
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] Prologix GPIB-USB vs. GPIB-LAN vs. NI was: AW:Prologix GPIB-USB vs. GPIB-LAN

[Prologix]

Closing the loop...

Latest firmware updates available at http://prologix.biz includes the
++savecfg command to temporarily disable automatic saving of configuration
parameters (including address). 
Please see manual for details.

Regards,
Abdul  


-Message d'origine-
De : time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] De la
part de Mark Sims
Envoyé : lundi 6 juillet 2009 18:54
À : time-nuts@febo.com
Objet : [time-nuts] Prologix GPIB-USB vs. GPIB-LAN vs. NI was: AW: Prologix
GPIB-USB vs. GPIB-LAN


The Prologix adapter has a ++addr command for changing the GPIB address.
You can select different instruments that way.  

Unfortunately, the version I looked seems to have a potentially fatal flaw.
When you change the ++addr,  the device writes the internal microprocessor
EEPROM.  The EEPROM is speced a 1 million write cycles.  If you changed
instruments at once a second,  in under two weeks the chip could be toast.
My app could have worn out the chip in under a day...   

All this assumes that Prologix did not implement some sort of elaborate wear
leveling scheme in their software,  but I suspect not.  They seem to have
intended one to set up the device to talk to one instrument then save that
configuration in the chip.  Dynamically hammering the thing to death with
address changes was not the intention of the ++addr command.  



___
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] George Daniels, master watchmaker, dies

[Prologix]

http://www.economist.com/node/21540211



___
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] IOTECH 488 EPROM

[Prologix]

Prologix would be happy to host your samples, or link to them, from our
website. Our customers will benefit much from your work.

Abdul
www.prologix.biz
supp...@prologix.biz


-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Hal Murray
Sent: Monday, March 19, 2012 9:27 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] IOTECH 488 EPROM


jlt...@att.net said:
> I have a friend who is helping me with the effort.  He has written 
> some programs to work with a 3458A and the ProLogix USB/GPIB adapter.  
> I plan to dissect the programs and modify them to suit my needs.  
> Hopefully, it will be a learning experience.

We should collect and/or publish/advertise more examples.

I know roughly nothing about Windows or NI, but here is my sample of
ProLogix on Linux.
  http://www.megapathdsl.net/~hmurray/hacks/probe.c
It's c rather than anything "higher" level.

I might translate it to python (when I run out of other things on my list).

Would that help anybody other than me?



--
These are my opinions, not necessarily my employer's.  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
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] Anyone from Italy here ?

[Prologix]

Hello,

Most likely a phishing mail. Please ignore.
We will let SgLabs know.

Regards.
Abdul

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf 
Of cfo
Sent: Wednesday, May 02, 2012 8:48 AM
To: time-nuts@febo.com
Subject: [time-nuts] Anyone from Italy here ?

Hi T-Nuts

In january 2012 - I bought a Prologix GPIB interface from an Italian Seller 
"sglabs" on the "Bay".

Today i received a mail from the seller 

 SNIP *

I need a favor form you…

Here in Italy is requiring by law…. that for all customers that have bought 
something from us, I need to have also birthplace and birthday…

I’m sorry to disturb for this reason, but I need help from you.

Thanks for collaboration
Best regards
 SNIP *

The mail actually looks quite authentic , Correct name & phone# etc.
But i have never heard of such a request before. And was wondering if any 
Italian T-Nut could verify that this request is valid.

It seems a bit strange to me ...

TIA
CFO - Tnut beginner Denmark




___
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] OT: Prologix GPIB and HP3478A...

[Prologix]

Hello Chuck,

It appears that 3478A sends data continuously as soon as it is addressed to
talk. Since the Prologix adapter is busy processing GPIB data it is unable
to respond to USB commands. 

One solution is to turn read-after-write off (++auto 0) before connecting
the adapter to 3478A, and then use ++read command to read one measurement at
a time. Please see the manual (www.prologix.biz) for ++read command options.

The other option is to set 3478A to one-reading-per-trigger mode using "T3"
device command. See HP3478 manual (pages 39, 59). Then use the ++trg command
to trigger the device. ++auto must be set to 1 in this case.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Chuck Harris
Sent: Tuesday, November 27, 2007 7:34 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] OT: Prologix GPIB and HP3478A...

Hi Gang!

I just bought a Prologix GPIB <-> USB converter model, version 5.00,
and I am having some problems.  It works fine on some of my instruments,
but it just locks up when I hook it to an HP3478A DVM.  The DVM is
known good, and works great with my HP85B (doesn't everything?).

Basically, if I do any commands that require bus activity, the Prologix
locks up and refuses to respond to even the ++ver command.  When I unplug
the HP3478A, the Prologix once again finds its happy spot, and responds
normally.

Any ideas?

-Chuck Harris

___
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] OT: Prologix GPIB and HP3478A...

[Prologix]

Hello Jeff,

Thanks for the compliments. Much appreciated.

You may configure the Prologix adapter (using ++eot_enable and ++eot_char)
to send (append, really) a user-specified character to USB ouput when it
detects EOI. By checking for the character you can determine if EOI was
asserted.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeff Mock


I have a slightly off-topic question about reads.  When issuing a 
"++read eoi", is it possible to tell whether an EOI was actually 
returned by the instrument or whether the read was terminated by timeout 
or block size limitation?

jeff



___
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] OT: Prologix GPIB and HP3478A...

[Prologix]

Hi Jeff,

Most (all?) GPIB instruments use 7-bit data. You should be OK choosing
eot_char in the 0x80-0xFF range.

I agree though, your's is a cleaner solution.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeff Mock
Sent: Wednesday, November 28, 2007 1:04 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] OT: Prologix GPIB and HP3478A...


++eot_char is usually okay.  The particular problem I was hacking at the 
time was a screen dump from a Tek scope (TDS 754A).  The screen dump is 
an 8-bit binary file in a weird image format and you don't know exactly 
how many bytes are going to be dumped (~50k bytes), but it does set EOI 
with the last byte sent.

++eot_char doesn't work 100% since the chosen EOT character might be 
binary data or it might be the EOT character.  The reason I asked is 
that the solution would be cleaner if you could do a "++read eoi" and 
then issue some other ++ query command to ask if EOI was set on the 
previous read.

jeff

Prologix wrote:
> Hello Jeff,
> 
> Thanks for the compliments. Much appreciated.
> 
> You may configure the Prologix adapter (using ++eot_enable and ++eot_char)
> to send (append, really) a user-specified character to USB ouput when it
> detects EOI. By checking for the character you can determine if EOI was
> asserted.
> 
> Regards,
> Abdul
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Jeff Mock
> 
> 
> I have a slightly off-topic question about reads.  When issuing a 
> "++read eoi", is it possible to tell whether an EOI was actually 
> returned by the instrument or whether the read was terminated by timeout 
> or block size limitation?
> 
> jeff
> 
> 
> 
> ___
> 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] OT: Prologix GPIB and HP3478A...The Answer!

[Prologix]

Hi Chuck,

Good work identifying the problem! Leaving out the bus driver chips was a
conscious decision based on available board space and was not made lightly.
Extensive testing had shown that not to be an issue, so far. In fact, yours
is the first reported case of a drive related problem. However, we consider
even one incident to be one too many, and will be revisiting the decision
during a future release.

Thank you for brining this to our attention.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Chuck Harris
Sent: Wednesday, November 28, 2007 7:47 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] OT: Prologix GPIB and HP3478A...The Answer!

And the answer is:

My Prologix USB <-> GPIB Version 5.0 adapter has insufficient
pullups to drive my HP3478A DVM.

Once I put another (older) turned on device on the bus, the Prologix
snapped to attention and works as it should.

Abdul, there is a very good reason why the 488 bus driver chips
exist.  The 488 standard *requires* that no listener load the bus
with more than 1 TTL input load, and *requires* that every active
Talker or Controller have a pull up/ pull down resistor on every
data and control pin that is equal to  this:

~ +5V
~  |
~ 3.1K
~  |
~  Out-+>
~  |
~ 6.2K
~  |
~ GND

It would appear that my 3478A is in a non loading tristate mode
until it is addressed, and you are relying on the devices on the
bus to do their own pull up.  Clearly that isn't always going to
work.

-Chuck Harris

Chuck Harris wrote:
> Prologix wrote:
>> Hello Chuck,
>>
>> It appears that 3478A sends data continuously as soon as it is addressed
to
>> talk. Since the Prologix adapter is busy processing GPIB data it is
unable
>> to respond to USB commands. 
> 
> I don't think the 3478A is sending anything at all.
> 
> If it was, it should be showing some of the annunciators on its LCD
display,
> like TLK, LSTN, RMT, SRQ, or something.  But it isn't.
> 
> I think the Prologix isn't capable of driving the 3478A, logic level wise,
> and is waiting in vain for the 3478A to respond to a signal the 3478A
cannot see.
> 

___
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] Prologix, 1 more quick ?

[Prologix]

Patrick,

There is no semi-colon after Prologix adapter commands (those that start
with ++). 
Try:

ser.write("++ver\r\n")

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Patrick
Sent: Wednesday, January 16, 2008 6:53 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix, 1 more quick ?

So sorry guys. I have been pulling my hair out for the last hour. One 
more question please.

Abdul sent me over a PySerial script just before I bought this item.

In the script there was line line like this:
ser.write("plot;\r\n")

I have tried ser.write("++ver;\r\n') and many other commands and 
carriage returns.

With ser.read(100) I get
'Unrecognized command\r\n'

So at least I have some communication. Could someone help me with the 
syntax?

Thanks in advance-Patrick

Patrick wrote:
> Thanks to Chuck, Jeff, Christian and John!
>
> I was trying to do a quick test with a live CD in bash but the general 
> message I have gotten is to fix the Ubuntu install. Indeed you were 
> right and I was wrong.
>
> I tried this command (thanks Jeff)
>
> sudo tail -f /var/log/messages
>
> I found out that I had a conflict with brltty. I don't remember 
> installing a brail terminal!
>
> It's funny it only had a conflict with the prologix device and not a 
> usb-serial adapter.
>
> Anyhow I am trying to communicate with the device with PySerial now. I 
> am getting error messages back when I read but at least that's something.
>
> Thanks again to all.
>
> -Patrick
>
>
> Chuck Harris wrote:
>   
>> You don't have the daemon that automatically loads new USB
>> devices running.  I forget its name, but it is easily found
>> by doing a google on linux USB.
>>
>> Or, you can look in Synaptic and search on USB.
>>
>> If I get a chance, I will look it up later on this evening.
>>
>> -Chuck Harris
>>
>>
>>
>> Patrick wrote:
>>   
>> 
>>> Hi Everyone
>>>
>>> I know that my Prologix device is functioning thanks to Ulrich's EZGPIB.
>>>
>>> I however want to use this device under Linux. My Ubuntu box cannot find

>>> /dev/ttyUSB0 but a Mepis Linux live CD can.
>>>
>>> I have tried the following commands:
>>> echo ++auto 0 CR > /dev/ttyUSB0
>>> echo ++auto 1 CR > /dev/ttyUSB0
>>> echo ++auto 0 \r > /dev/ttyUSB0
>>> echo ++auto 1 \r > /dev/ttyUSB0
>>> echo ++auto 0 \n > /dev/ttyUSB0
>>> echo ++auto 1 \n > /dev/ttyUSB0
>>> echo ++auto 0 \r\n > /dev/ttyUSB0
>>> echo ++auto 1 \r\n > /dev/ttyUSB0
>>>
>>> I have not been able to switch the led on from talk to listen.
>>>
>>> Could someone give me a bash sample of the correct syntax to use?
>>>
>>> Thanks in advance-Patrick
>>>
>>>
>>> ___
>>> 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.
>
>   


___
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] prologix device as sniffer

[Prologix]

Patrick,

Prologix GPIB-USB controller does not work as a GPIB bus sniffer. In DEVICE
mode the controller reads the bus only if it has previously been addressed
as a listener.

Regards,
Abdul


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Patrick
Sent: Sunday, January 27, 2008 10:25 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] prologix device as sniffer

Hi Everyone

Thanks to all for helping me with my last post. I am now reading with my 
Prologix device.

I am just not sure that I am reading everything. I am trying to monitor 
the communication between a closed source App and some GPIB devices.

After I set up imported and set up serial with PySerial I tried this:

ser.write("++mode0\r\n")

x=1

def read3():
while(x==1):
print ser.read(1000)

I also tried print ser.readline()

I read the "ID" command sent out by the software but I could not read 
the response. Am I reading all the addresses with this set up or just 
one? Does anyone have some thoughts on why I don't read the response?

Thanks yet again in advance-patrick


___
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] prologix device as sniffer

[Prologix]

Patrick,

Sorry the product didn't work out for you. With the current firmware, there
is really no good way to do what you want to do. GPIB bus sniffing is an
oft-requested feature that we will certainly consider adding in the future.
Email me off-line if you wish to return the unit.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Patrick
Sent: Sunday, January 27, 2008 11:41 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] prologix device as sniffer

Thanks Abdul

This comes as a pretty big blow, as this is what I was hoping to do with 
it from the start.

Is there a way to set it up to read one address continuously?

thanks in advance-Patrick

Prologix wrote:
> Patrick,
>
> Prologix GPIB-USB controller does not work as a GPIB bus sniffer. In
DEVICE
> mode the controller reads the bus only if it has previously been addressed
> as a listener.
>
> Regards,
> Abdul
>
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Patrick
> Sent: Sunday, January 27, 2008 10:25 AM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] prologix device as sniffer
>
> Hi Everyone
>
> Thanks to all for helping me with my last post. I am now reading with my 
> Prologix device.
>
> I am just not sure that I am reading everything. I am trying to monitor 
> the communication between a closed source App and some GPIB devices.
>
> After I set up imported and set up serial with PySerial I tried this:
>
> ser.write("++mode0\r\n")
>
> x=1
>
> def read3():
> while(x==1):
> print ser.read(1000)
>
> I also tried print ser.readline()
>
> I read the "ID" command sent out by the software but I could not read 
> the response. Am I reading all the addresses with this set up or just 
> one? Does anyone have some thoughts on why I don't read the response?
>
> Thanks yet again in advance-patrick
>
>
> ___
> 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.


___
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] EZGPIB in T&M World

[Prologix]

Ulrich Bangert's EZGPIB software (and Prologix GPIB-USB controller) is
mentioned in April issue of "Test and Measurement World" magazine TestVoices
page (pg 11).

 

Good work Ulrich!

 

Regards,

Abdul

___
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] PCB design questions thread II

[Prologix]

David,

These are the ones we've used. I am sure there are many others.
Prototypes -- www.pcbfabexpress.com
Production -- www.pcbnet.com

>> Is there a way to split the layers of an old board apart to study them?

An assembly shop can x-ray them for you.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Patrick
Sent: Monday, June 02, 2008 11:31 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] PCB design questions thread II

Hi David and list

I am quite interested in this post too.

I have wanted to fabricate my own PCBs for several years now but I have 
never made an attempt. I am set up here to do silk screening and I have 
ovens and a hot-air soldering iron. Has anyone else tried to fabricate 
their own boards or is the price of farming the work out just so low now?

If anyone has farmed out work, could you please feedback as to the entry 
level costs and if possible, some suggested companies?

P.S Many of the boards I want to fabricate are replacements for obsolete 
ones. Is there a way to split the layers of an old board apart to study 
them?

Thanks-Patrick


___
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] PCB design questions thread II

[Prologix]

Another option is to cook the boards in a skillet.
http://www.sparkfun.com/commerce/present.php?p=Reflow%20Skillet

While John may be brave enough to hand solder BGA I am not :-)
Shorts can be easily detected with x-ray, but opens can be quite difficult
to spot. 

If you do endup hand soldering BGA, this is a good tool to check shorts and
opens. That is, if the part is JTAG enabled.
http://www.macraigor.com/jscan.htm



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Miles
Sent: Monday, June 02, 2008 7:27 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] PCB design questions thread II


> Quoth Bruce Griffiths at 2008-06-03 09:50...
>
> > How do you cope with SMT parts (eg high frequency ADCs) with metal
> > thermal transfer /ground connections under the package itself?
>
> Haven't done it myself, but interested to hear others experiences.  I'm
> guessing that this would be a job for solder paste and a toaster oven -
> or high-tech equivalent.

Yes, see the link I posted.  Solder paste + heat gun does the trick, or you
can just carve out a hole for your soldering iron tip with a Dremel tool.

Even BGAs are commonly soldered at home with toaster ovens.

-- john, KE5FX



___
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] Prologix VRBOOT error

[Prologix]

Hello Matt,

It appears your Prologix GPIB-USB controller is in firmware update mode.
Please follow these steps:

1. Disconnect USB cable and GPIB cable. If the controller is plugged onto an
instrument, unplug it.
2. Connect USB cable.
3. Connect GPIB cable, or plug onto instrument.

Let me know if you have more questions.

Regards,
Abdul

Prologix, llc
www.prologix.biz



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matt Ettus
Sent: Tuesday, June 03, 2008 4:19 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Prologix VRBOOT error

I just received a Prologix GPIB interface today.  At first it was
working, but it only works some times when it is connected.  The
others it sends the following to minicom:

"?VRBOOT???"

It seems to get commands and try to respond, but it sends weird
things.  If I send a "++help" it sends S and more question marks.
Pressing enter causes it to send more question marks.  Powering off
and back on doesn't help.

Anybody seen this behavior before?

Matt

___
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] Prologix VRBOOT error

[Prologix]

Short version:
Connect USB cable before connecting GPIB, and leave USB connected and
powered.

Long version:
On startup, if one of the MCU I/O lines is pulled low, the controller will
enter firmware update mode. As it happens, this I/O line is also one of the
GPIB bus signals. Some instruments seem to have stronger pull-down on the
bus lines than others. The controller may enter firmware update mode, if the
USB cable is plugged in while the controller is connected to such an
instrument. Since the pull-down is passive, this behavior could happen even
if the instrument is powered down when connecting USB.

Hope that helps.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matt Ettus
Sent: Tuesday, June 03, 2008 5:12 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix VRBOOT error

On Tue, Jun 3, 2008 at 5:03 PM, Prologix <[EMAIL PROTECTED]> wrote:
> Hello Matt,
>
> It appears your Prologix GPIB-USB controller is in firmware update mode.
> Please follow these steps:
>
> 1. Disconnect USB cable and GPIB cable. If the controller is plugged onto
an
> instrument, unplug it.
> 2. Connect USB cable.
> 3. Connect GPIB cable, or plug onto instrument.
>
> Let me know if you have more questions.

That seems to fix things.  Simply unplugging USB isn't enough -- I
have to take it off the instruments as well.

How do I keep from getting into that mode in the first place?  I need
this to work reliably without having to reconnect it several times a
day.

Matt

___
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] Prologix VRBOOT error

[Prologix]

Matt,

We are testing a fix. I'll be in touch soon.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matt Ettus
Sent: Wednesday, June 04, 2008 12:40 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix VRBOOT error

On Tue, Jun 3, 2008 at 5:31 PM, Prologix <[EMAIL PROTECTED]> wrote:
> Short version:
> Connect USB cable before connecting GPIB, and leave USB connected and
> powered.

That isn't realistic for my setup.

> Long version:
> On startup, if one of the MCU I/O lines is pulled low, the controller will
> enter firmware update mode. As it happens, this I/O line is also one of
the
> GPIB bus signals. Some instruments seem to have stronger pull-down on the
> bus lines than others. The controller may enter firmware update mode, if
the
> USB cable is plugged in while the controller is connected to such an
> instrument. Since the pull-down is passive, this behavior could happen
even
> if the instrument is powered down when connecting USB.

Honestly, this sounds like a serious design flaw to me.  I have 5 GPIB
instruments, and 3 of them cause this behavior.  If 3 pieces of test
equipment from 3 different manufacturers cause this behavior, it must
be pretty common.

Matt

___
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] USB to Serial Connectors for GPS Modules

[Prologix]

Usually, the adapters work fine. Two instances where they _may_ not:

1. Devices that are powered from "unused" serial lines. 
2. Applications that perform direct twiddling of serial lines, instead of
using host OS functions.


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matthew Smith
Sent: Wednesday, June 04, 2008 6:26 PM
To: Time Nuts List
Subject: [time-nuts] USB to Serial Connectors for GPS Modules

Hi Folks

Are there any issues with connecting computers to GPS modules through 
USB to serial devices like the FTDI FT232R, as opposed to 'native' 
serial ports?  At the moment, I'm thinking in the context of an NTP 
server, but am interested in a general context should I need to move to 
USB-only PCs.  Didn't know if there were any latency issues or anything.

Cheers

M

-- 
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
Business: http://www.smiffytech.com/
Personal: http://www.smiffysplace.com/
LinkedIn: http://www.linkedin.com/in/smiffy

___
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] Thunderbolt and USB to RS232 converters

[Prologix]

While I have no experience with Thunderbolt, I have tested a lot of
USB-Serial converters and found ones with the FTDI chip to be the most
reliable, hardware and software wise.

http://www.saelig.com/miva/merchant.mvc?Screen=PROD&Product_Code=U003


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Javier Herrero
Sent: Tuesday, June 24, 2008 10:13 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Thunderbolt and USB to RS232 converters

I've been using it with Prolific PL2303 based converters with no problem 
at all (Aten brand, in my case).

Regards,

Javier

Jeroen Bastemeijer escribió:
> Dear All,
>
> More and more people are starting to play with the Thunderbolts. I
> already received mine :-)  Now playing around with them.
>
> First I powered it up and connected it to the normal serial port of the
> PC. The Thunderbolt behaved fine, self survey took some time, because
> the antenna is inside a concrete building with very limited view to the
sky.
>
> However, next I did a test with the same Thunderbolt but now it was
> connected to a USB to Serial converter (brand is Sweex). After
> switchinhg it off and on, I expected the same behaviour as when it was
> connected to the "real" serial port. But... it started to behave very
> strange... instead of starting a normal survey, it started disciplining
> after a couple of minutes (almanac was not even valid). The DAC-voltage
> clipped to the power rail, and the SV and AMU-fields remained "?". 
> Resetting (hot, cold, factory default) didn't make any difference.
> When power cycling the unit and connecting it back to the normal serial 
> port the normal behaviour returned. I assume it has something to do with 
> the USB to serial converter. Is there anyone else with similar 
> experience? Or who has used a USB to serial converter with succes?
>
> Thank you, best regards,
>
> Jeroen
>

-- 
{\rtf1\ansi\ansicpg1252\deff0\deflang3082{\fonttbl{\f0\fmodern\fprq1\fcharse
t0 Courier New;}{\f1\fswiss\fcharset0 Arial;}}
{\*\generator Msftedit 5.41.15.1507;}\viewkind4\uc1\pard\f0\fs20
\par
Javier HerreroEMAIL: [EMAIL PROTECTED]
HV Sistemas S.L.  PHONE: +34 949 336 806\par
Los Charcones, 17AFAX:   +34 949 336 792\par
19170 El Casar - Guadalajara - Spain  WEB:
http://www.hvsistemas.com\f1\par
}


___
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] New Prologix GPIB-LAN Controller

[Prologix]

Hello,

 

Prologix is happy to announce its newest product - GPIB-LAN Controller.

 

Access your GPIB enabled instruments over a network (even over wireless)
using the affordable, easy to use, Prologix GPIB-LAN controller!

 

Use this controller to control, and to download screen plots and data from,
Oscilloscopes, Logic Analyzers, Spectrum Analyzers and other GPIB enabled
instruments. 

 

GPIB-LAN controller uses the same command interface as the popular Prologix
GPIB-USB controller; the only difference is you connect to a TCP port
instead of over USB. Being a network device there are no drivers to install.

 

* No drivers required

* Support for multiple devices

* No GPIB cable needed; controller plugs on to instrument

* All software configuration. No switches

* Standard RJ-45 and IEEE 488 (Male) connectors

 

Thanks to John Miles for adapting KE5FX GPIB toolkit to support Prologix
GPIB-LAN controller. Now you can use the popular 7470, SSM and PN utilities
over the net.

 

Thanks to Ulrich Bangert for adapting EZGPIB to support Prologix GPIB-LAN
controller

 

http://store.prologix.biz/gpiblan-controller.html

 

Regards,

Abdul

[EMAIL PROTECTED]

 

___
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] New Prologix GPIB-LAN Controller

[Prologix]

Prologix GPIB-LAN provides the same command interface as the popular
Prologix GPIB-USB controller, making it easy to adapt existing programs.
VXI-11 support may be emulated by developing a host side library. None is
planned for now. But that could change depending on customer interest.

Regards,
Abdul
www.prologix.biz


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matt Ettus
Sent: Tuesday, August 05, 2008 10:47 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] New Prologix GPIB-LAN Controller

On Tue, Aug 5, 2008 at 10:38 AM, Prologix <[EMAIL PROTECTED]> wrote:
> Hello,
>
>
>
> Prologix is happy to announce its newest product - GPIB-LAN Controller.


Will there be VXI-11 support?  The ICS 8065 and Agilent E5810A both support
it, along with most of the new test equipment that talks ethernet.  It would
be nice not to have to rewrite apps.

Matt

___
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] Prologix GPIB-NET, HP 5370A, HP5334A problem?

[Prologix]

Bill,

How are you reading from 5334A? Is the read-after-write mode OFF?
I recommend the following sequence:

++auto 0-- turn off read-after-write
++read eoi  -- read until EOI is asserted by the instrument
++read eoi


(If your instrument does not assert EOI, specify a character to terminate
++read command. See manual for details.)

Yes, ++read will address the instrument to talk, read any output, and then
address it to listen.

We are testing an update that resets the controller if it detects a hung
GPIB bus. I can send that to you offline.

Regards,
Abdul



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of wje
Sent: Wednesday, August 27, 2008 3:12 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Prologix GPIB-NET, HP 5370A, HP5334A problem?

I just got one of the new networked GPIB controllers, and I've been 
having some issues. I'm not sure if it's the Prologix or the 
instruments, or both.

With the 5370A, I can get samples for some period of time ranging from 
about 2 to 4 hours before the GPIB controller stops responding. I 
suspect this one might be the 5370A -488 controller bug I've heard of. 
However, there is no way to recover without power-cycling the Prologix. 
Even if this is the 5370A, the Prologix should really have an 
asynchronous reset capability.

With the 5334A, I can get samples for as long as I want, no problem. 
However, if I set the 5334A to 'WA1' mode, which is supposed to wait 
until the counter is addressed before taking each sample, what happens 
is that I can read one value. Every successive read returns the same 
value; the 5334A never triggers for a new sample. Either I don't 
understand the behavior of WA1, although HP's sample program indicates 
that what I've described is proper, or there is some incompatibility 
between the Prologix and the 5334A.

Unfortunately, the documentation for the Prologix is scanty at best. 
There is no description of the actual IEEE-488 handshake process that's 
going on. For example, does the Prologix do an unlisten after a read? 
The HP docs seem to indicate that in WA1 mode, a sample starts when the 
5334A is addressed. So, if it's never unlistened, perhaps it never takes 
a new sample?

Any thoughts or suggestions would be appreciated.

-- 
Bill Ezell
--
They said 'Windows or better'
so I used Linux.


___
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] Prologix GPIB-NET, HP 5370A, HP5334A problem?

[Prologix]

You could try explicitly triggering with ++trg followed by ++read 10.


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of wje
Sent: Wednesday, August 27, 2008 4:14 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix GPIB-NET, HP 5370A, HP5334A problem?

YI don't use read-after-write, and I explicitly set it off before 
reading. However, I did try it once just for fun, and it does work as 
expected.

The 5334 doesn't seem to assert eoi, so I do a '++read 10', which works 
just fine except for the WA1 strangeness.

Bill Ezell
--
They said 'Windows or better'
so I used Linux.



Prologix wrote:
> Bill,
>
> How are you reading from 5334A? Is the read-after-write mode OFF?
> I recommend the following sequence:
>
> ++auto 0  -- turn off read-after-write
> ++read eoi-- read until EOI is asserted by the instrument
> ++read eoi
> 
>
> (If your instrument does not assert EOI, specify a character to terminate
> ++read command. See manual for details.)
>
> Yes, ++read will address the instrument to talk, read any output, and then
> address it to listen.
>
> We are testing an update that resets the controller if it detects a hung
> GPIB bus. I can send that to you offline.
>
> Regards,
> Abdul
>
>
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of wje
> Sent: Wednesday, August 27, 2008 3:12 PM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] Prologix GPIB-NET, HP 5370A, HP5334A problem?
>
> I just got one of the new networked GPIB controllers, and I've been 
> having some issues. I'm not sure if it's the Prologix or the 
> instruments, or both.
>
> With the 5370A, I can get samples for some period of time ranging from 
> about 2 to 4 hours before the GPIB controller stops responding. I 
> suspect this one might be the 5370A -488 controller bug I've heard of. 
> However, there is no way to recover without power-cycling the Prologix. 
> Even if this is the 5370A, the Prologix should really have an 
> asynchronous reset capability.
>
> With the 5334A, I can get samples for as long as I want, no problem. 
> However, if I set the 5334A to 'WA1' mode, which is supposed to wait 
> until the counter is addressed before taking each sample, what happens 
> is that I can read one value. Every successive read returns the same 
> value; the 5334A never triggers for a new sample. Either I don't 
> understand the behavior of WA1, although HP's sample program indicates 
> that what I've described is proper, or there is some incompatibility 
> between the Prologix and the 5334A.
>
> Unfortunately, the documentation for the Prologix is scanty at best. 
> There is no description of the actual IEEE-488 handshake process that's 
> going on. For example, does the Prologix do an unlisten after a read? 
> The HP docs seem to indicate that in WA1 mode, a sample starts when the 
> 5334A is addressed. So, if it's never unlistened, perhaps it never takes 
> a new sample?
>
> Any thoughts or suggestions would be appreciated.
>
>   

___
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] Prologix GPIB/USB converter help...

[Prologix]

Hello,

 

Few points to consider while setting up the Prologix GPIB-USB controller:

 

1.  All commands to the Prologix controller MUST be terminated by LF
(character 0x0A). 
2.  4.x versions do NOT care about serial port parameters. Other than
the port number, of course.
3.  3.x versions require the serial port to be configured as
115200-8-N-1 with RTS/CTS (aka hardware) flow control. The flow control is
essential to avoid data corruption. A less elegant (and less reliable)
solution is to add delays between commands.
4.  On startup the controller takes about 5 seconds to initialize,
during which time both TALK and LISTEN leds are lit. This delay is required
to complete USB enumeration and handle some vagaries of the FTDI USB chip.
After connecting USB, wait for 5 seconds before sending any commands.

 

I agree, the website needs an update. It should be happening soon. 

 

Meanwhile, please feel free to email [EMAIL PROTECTED] with questions. 

 

Regards,

Abdul

 

___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] Prologix GPIB/USB converter help...

[Prologix]

Hello Said,
 
Unfortunately, no. Updated firmware requires the new hardware.
 
Why are you not using hardware flow control? Which platform and application
are you using? 
 
Regards,
Abdul
 
 
Hello Abdul,
 
is there a way to upgrade older boards with a new microcontroller?
 
I have a version 3.11 board, and can replace the micro myself.
 
Presently I am bypassing the Hardware flow control using delays in the  
control software, not very elegant and it is quite slow.
 
Thanks,
Said

 

___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Prologix GPIB/USB converter help...

[Prologix]

Hi Said,

In that case the new firmware will not be compatible at all. The new
hardware uses FTDI FT245R USB FIFO chip which has a parallel interface to
the micro. Host side USB drivers make it appear like a virtual serial port,
which is why all the serial port parameters can be ignored.

Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Monday, April 16, 2007 10:25 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Prologix GPIB/USB converter help...


Hi Abdul,
 
we modified the board to have true RS-232 output to talk to an instrument  
that just has RS-232, and we are bypassing the USB chip, but our  RS-232
does 
not have flow control.

This works well (with the timing loops) but I think with the new  software
it 
could be sped-up quite a bit.
 
bye,
Said



** See what's free at
http://www.aol.com.
___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Prologix GPIB/USB converter help...

[Prologix]

Interesting. I used to sell a GPIB-RS232 version some years ago. Sales were
low since customers were clamoring for an USB version! But then I hadn't
discovered this crowd :-) Happy to take another look at it.

I am in the process of designing a GPIB-Ethernet controller. You think that
will be of any interest?

Abdul


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Ackermann N8UR
Sent: Monday, April 16, 2007 3:20 PM
To: Tom Van Baak; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix GPIB/USB converter help...

Tom Van Baak said the following on 04/16/2007 05:41 PM:
>> In that  case the new firmware will not be compatible at all. The new
>> hardware uses  FTDI FT245R USB FIFO chip which has a parallel interface
to
>> the micro. Host  side USB drivers make it appear like a virtual serial
port,
>> which is why  all the serial port parameters can be  ignored.
>>
>> Abdul
>>
>>
>> Hi Abdul,
>>
>> got it. Any chance you will make a GPIB-to-RS-232 version for us legacy
guys 
>> out there?
>>
>> thanks,
>> Said
> 
> Abdul,
> 
> I very much second Said's request. There are plenty of
> applications where the Prologix box would be used in an
> embedded environment. USB is a very bad choice in this
> case since it is a highly asymmetric interface (there are
> a million USB devices but pretty much only a full-blown
> PC can be a USB host).
> 
> Allowing serial (RS232 or SPI or I2C) in addition to USB
> is a big plus. I'm sorry to hear your new version can't be
> hacked to support this. Do you have any extra pins on
> your controller? Could it be extended to support a serial
> interface? You can talk to Said or me offline if you want;
> but you unnecessarily shrink your market if you drop a
> serial interface.

I'll throw in a vote, too.  While the USB version works OK for my
application, an RS-232 version that had an identical API would be very
useful.

John

___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] A Prologix GPIB-USB hint

[Prologix]

Thank you Paul for the hint! We shall add that to the help doc.

The upgrade that Didier mentioned will be ready for public release very soon
and will be posted on prologix.biz.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Didier Juges
Sent: Saturday, June 09, 2007 8:02 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] A Prologix GPIB-USB hint

Poul,

This has been fixed in the most recent release. Abdul added a ++read command
that gets a single reading and then turns TALK off the instrument.

I have not actually tried it, but I have received it from Abdul a week or 2
ago.

The firmware isd easy to upgrade.

Give him a call.

Didier 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Poul-Henning Kamp
Sent: Saturday, June 09, 2007 9:32 AM
To: time-nuts@febo.com
Cc: [EMAIL PROTECTED]
Subject: [time-nuts] A Prologix GPIB-USB hint


I spent the better part of an afternoon trying to figure this bit out, so to
save somebody else the time:

Some GPIB instruments will complain if addressed to talk when they have not
been asked about anything.  The HP6626A Power Supply is my present instance.

The Prologix GPIB-USB has the "++auto" command which controls if it should
automatically go into listen after a talk, the description on the manual
page is:

Enable (1) or disable (0) "listen-after-talk" feature

Based on that description, one would, or at least I would, expect the
behaviour to be that nothing happens until the next write, so that this
would work:

++auto 0
idle bus
write something
device= listen
send data
idle bus
++auto 1
idle bus
write something
device= listen
send data
device= talk
read something


But that is not the case.  "++auto 1" puts the device in talk mode
immediately, so the sequence needs to be:


++auto 0
idle bus
write something
device= listen
send data
idle bus
write something
device= listen
send data
idle bus
++auto 1
device= talk
read something

You've been warned :-)

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED] | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


--
No virus found in this incoming message.
Checked by AVG Free Edition. 
Version: 7.5.472 / Virus Database: 269.8.13/842 - Release Date: 6/9/2007
10:46 AM



___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] Prologix GPIB-USB Controller firmware update - version 4.60

[Prologix]

Hello all,

 

Firmware version 4.60 is now available at http://www.prologix.biz
 . 

Thanks to Gerry G, John M., and Didier J. for their help in testing this
version!

 

Rest of the website will be updated soon to better document the new, and
old, commands (I know, I know, been saying that for a while!). Meanwhile
feel free to email [EMAIL PROTECTED] with any questions.

 

Regards,

Abdul

 

 

___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Prologix GPIB-USB Controller firmware update -version4.60

[Prologix]

Good catch! I didn't realize Microsoft removed HyperTerminal from Vista.

You could use TeraTerm Pro instead -
http://hp.vector.co.jp/authors/VA002416/teraterm.html

Configure as follows:

Open "Setup" | "Terminal" dialog, check "Local Echo" and set Transmit to
"CR+LF"
Then open "Setup" | "Serial Port" and pick the port you want to use. 

Rest of the update instructions remain the same.

By default, TeraTerm Pro shows only COM1-4. If your USB serial port is
higher than COM4, edit TERATERM.INI and set MaxComPort to a higher value.
For example:

MaxComPort=16

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Edwin B. Walker
Sent: Sunday, June 10, 2007 11:52 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix GPIB-USB Controller firmware update
-version4.60

Abdul,  will this  controller work with Windows Vista as I don't  find a 
copy of hyperlink in there?

Ed
-> version!
>
>
>
> Rest of the website will be updated soon to better document the new, and
> old, commands (I know, I know, been saying that for a while!). Meanwhile
> feel free to email [EMAIL PROTECTED] with any questions.
>
>
>
> Regards,
>
> Abdul
>
>
>
>
>
> ___
> time-nuts mailing list
> time-nuts@febo.com
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> 



___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Prologix GPIB-USB Controller firmwareupdate-version4.60

[Prologix]

I assumed (mistakenly, perhaps) that Ed's question was about firmware
update.

Prologix.exe is way better for everything else. And one of these days John
may even add firmware update support ;-)


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Miles
Sent: Sunday, June 10, 2007 12:53 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Prologix GPIB-USB Controller
firmwareupdate-version4.60

Prologix.exe should work in Vista, if you can get past the inevitable
nagging.  I'd like to hear if otherwise.  You don't need Hyperterm for most
things if you use prologix.exe.

For re-flashing the firmware, though, you will need a real terminal program.
Prologix.exe will communicate with the board behind your back and cause
problems with the boot loader.

-- john, KE5FX


>
> Good catch! I didn't realize Microsoft removed HyperTerminal from Vista.
>
> You could use TeraTerm Pro instead -
> http://hp.vector.co.jp/authors/VA002416/teraterm.html
>
> Configure as follows:
>
> Open "Setup" | "Terminal" dialog, check "Local Echo" and set Transmit to
> "CR+LF"
> Then open "Setup" | "Serial Port" and pick the port you want to use.
>
> Rest of the update instructions remain the same.
>
> By default, TeraTerm Pro shows only COM1-4. If your USB serial port is
> higher than COM4, edit TERATERM.INI and set MaxComPort to a higher value.
> For example:
>
> MaxComPort=16
>
> Regards,
> Abdul
>


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Ebay 5071A scam back again?

[Prologix]

Reminds me of a very funny exchange between John Miles and an eBay spammer:


Item: HP 8566B SPECTRUM ANALYZER (140015503492)
This message was sent while the listing was active.
jmiles(at)pop(-dot)net is a potential buyer.

Hi -- Does this 8566B include the optional waveguide gonkulator? Thanks!

From: ARTHUR MOORE mailto:arthumoore%40yahoo.com"[EMAIL PROTECTED]>
Subject: Re: Question for item #140015503492 - HP 8566B SPECTRUM ANALYZER

Yes include the optional waveguide gonkulator. What price you have in mind
for it?


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of buehl
Sent: Tuesday, June 26, 2007 10:11 AM
To: [EMAIL PROTECTED]; Discussion of precise time and frequency
measurement; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Ebay 5071A scam back again?

One possible way of sorting out the scammers is to ask a simple question 
which will get a "yes" from a scammer.

For example:  Please confirm your 5071 has the jack labled NTSC INPUT on 
the back.

Tom Buehl


At 07:43 AM 6/26/2007 -0700, Dan Rae wrote:
>[EMAIL PROTECTED] wrote:
>
> >Hi All
> >
> >Am I right in thinking this is another EbayUK repeat of the dodgy  5071A
> >auction that was listed a week or so ago?
> >
> >
>Nigel, probably yes.  Some of the characters go on for weeks or months
>with the same phony ads but with new or newly hi-jacked seller
>identities.  There was one Racal dual receiver ebay ad, originally for
>real,  that appeared over and over again at intervals for months, maybe
>thirty or forty times in all...   It  sometimes used to take eBay days
>to pull and NARU them, I would sometimes bid just to see how long they
>did take, and also tell eBay, but that is a pretty thankless task.
>
>The tell tale signs are many, asking for Western Union Money orders,
>soliciting direct contact and so on.  Looking at the seller's other
>items will give a clue often, if there are pages of lots of presumably
>desirable goodies like Plasma TVs, laptops etc., listed very cheap.
>
>The 5071 is quite a sophisticated item for the usual run of the mill
>scammer though.  An odd choice.
>
>73
>Dan
>ac6ao / g3ncr
>
>
>___
>time-nuts mailing list
>time-nuts@febo.com
>https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts


___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] HP5370B and GPIB

[Prologix]

The latest version of Prologix GPIB-USB controller firmware (v4.65)
available at http://prologix.biz/update.html allows binary data
transmission. CR (ASCII 13) and LF (ASCII 10) may be escaped by preceding
them with the ESC (ASCII 27) character.


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Miles
Sent: Sunday, July 01, 2007 10:04 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] HP5370B and GPIB

I've got a basic data-logging example that works with NI and Prologix
adapters (see 5370b.cpp in www.ke5fx.com/gpib/setup.exe ).  There is one
caveat on the Prologix boards that might apply to the Softmark adapter as
well, though: you can't use the SB command to specify an arbitrary sample
size in binary, because the board might interpret any ASCII 10 or 13 (LF or
CR) characters as command terminators.

The sample-size logic in my case looks like this (below).  That's the only
hangup I can think of, offhand.  It doesn't sound like that's your problem,
but it's worth noting once you get the basic communication up and running.

Also, I don't remember if the 5370B asserts EOI at the end of each reading,
so you might make sure you've configured the Softmark board to terminate
incoming reads when ASCII 10 (LF) is received.

-- john, KE5FX


-snip from 5370b.cpp-

   //
   // Tell counter how many samples to take for each returned reading, after
   // forcing it to wrap up any measurement in progress by taking a single
sample
   //
   // If sample size is not a power of 10, we must compose an SB
   // (Sample Binary) command string to specify the number of
   // samples we want the counter to take for each reading
   //
   // Prologix users will not be able to use this feature, since arbitrary
binary
   // strings cannot be transmitted!
   //

   GPIB_write("SS1");
   Sleep(100);

   U8 sample_string[16];

   U32 n = (S32) (log10((DOUBLE) n_samples) + 0.5);

   if (n_samples == (U32) (pow(10.0, (S32) n) + 0.5))
  {
  sprintf((C8 *) sample_string,"SS%d",n);

  GPIB_write((C8 *) sample_string);
  }
   else
  {
  if (GPIB_serial_configuration() != NULL)
 {
 printf("WARNING: Binary command transmission requires National
Instruments interface\n");
 printf("Measurement may not work -- use a power of 10 from 1-10
inclusive\n\n");
 }

  sample_string[0] = 'S';
  sample_string[1] = 'B';
  sample_string[2] = (U8) (n_samples / 65536);
  sample_string[3] = (U8) ((n_samples - ((n_samples / 65536) * 65536)) /
256);
  sample_string[4] = (U8) (n_samples % 256);

  GPIB_write_BIN(sample_string, 5);
  }

-end--


> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Behalf Of Brian Kirby
> Sent: Sunday, July 01, 2007 9:25 AM
> To: Time Nuts
> Subject: [time-nuts] HP5370B and GPIB
>
>
> ); SAEximRunCond expanded to false
> Errors-To: [EMAIL PROTECTED]
>
> If you are using a HP5370B time interval counter and logging data from
> the HPIB bus, can I inquire to what you are using for an interface to
> the HPIB bus and what do you log the data with ?
>
> I am basically trying to capture 1 second data from the 5370B using a
> Softmark USB/GPIB card - and I am not having any luck at all.
>
> I see some effects of commanding, the display on the 5370 changes or I
> get and error message - but I cannot read any sort of data back thru the
> HPIB port.
>
> I would appreciate it if one could send an example of what commands I
> need to send to set the port up and retreive the data.
>
> Brian N4FMN
>
>


___
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] HP5370B and GPIB

[Prologix]

Yes; ESC itself may be escaped by ESC. In other words, three characters --
CR, LF and ESC -- need to be escaped, by preceding them with ESC (27), if
they appear in the input data stream. 


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Miles
Sent: Sunday, July 01, 2007 10:34 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] HP5370B and GPIB

Cool! -- I assume that ESC also works that way, right (ESC ESC sends a
single ESC character)?  Is ESC just ASCII 27 as usual?  I can support that
in the GPIBLIB.DLL layer without much trouble.

I was called out of town on family business before I had the chance to
tinker with adding firmware-uploading support to prologix.exe, but it's
still on my agenda...

-- john, KE5FX


> -Original Message-
> From: Prologix [mailto:[EMAIL PROTECTED]
> Sent: Sunday, July 01, 2007 10:17 AM
> To: 'Discussion of precise time and frequency measurement'
> Cc: 'John Miles'
> Subject: RE: [time-nuts] HP5370B and GPIB
>
>
>
> The latest version of Prologix GPIB-USB controller firmware (v4.65)
> available at http://prologix.biz/update.html allows binary data
> transmission. CR (ASCII 13) and LF (ASCII 10) may be escaped by preceding
> them with the ESC (ASCII 27) character.
>
>


___
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] Prologix GPIB-USB Controller Manual & FAQ

[Prologix]

Hello,

 

The long promised user manual is now available at
 http://prologix.biz/manual2

FAQ has been revised as well.

 

Thanks,

Abdul

 

___
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] Prologix GPIB-USB advice

[Prologix]

); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY


Hello John,

Prologix GPIB-USB controller provides a (virtual) serial port for
communicating with instruments. In Python, you would use one of the serial
libraries such as pySerial. I will email you a sample program.

Mac Intel drivers are available for Mac OS X 10.4 (Tiger) and later. See
http://www.ftdichip.com/Drivers/VCP.htm

Thanks for your interest. Please email if you have any questions.

Regards,
Abdul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Fisher
Sent: Tuesday, August 14, 2007 5:03 PM
To: time-nuts@febo.com
Subject: [time-nuts] Prologix GPIB-USB advice

Hi all,

I am a fairly newcomer to the Mac world and the Python world, that said, I
wish to use a Prologix GPIB-USB converter in this environment with that
language. Anyone with experience in the matter, or at least partially, i.e.
Got it working on the Mac (Intel)? Do you use pyVISA or some more direct
method? OK, if you can shed some light please let me know.

wave_man


___
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] Prologix GPIB & LeCroy ScopeExplorer

[Prologix]

Hello,

 

If anyone has used Prologix GPIB-USB controller with LeCroy ScopeExplorer,
could you please contact [EMAIL PROTECTED] offline?

 

Much appreciated.

 

Regards,

Abdul

___
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] serial parsing program

[Prologix]

Hello Cash,

Check out Google Protocol Buffers
https://developers.google.com/protocol-buffers/

And here is a discussion of it from an embedded software perspective
http://www.ganssle.com/tem/tem277.html#article1

Hope that helps.

Regards,
Abdul


-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Cash Olsen
Sent: Tuesday, March 24, 2015 3:22 PM
To: time-nuts@febo.com
Subject: [time-nuts] serial parsing program

I'd like to find a program that has a very flexible serial input and can be 
easily setup to parse a binary sentence. Specifically, U-Blox timing but more 
general purpose would be nice for future projects. Has to be able to handle 1, 
2, and 4 byte fields, and checksums would be nice also. Should run on Windows 
for the immediate project but Linux for next projects.

--
S. Cash Olsen KD5SSJ
ARRL Technical Specialist
___
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] GPIB, Proloigix, cables

[Prologix]

Hi Jim,

We recommend starting with the procedure described in the FAQ to verify
connectivity:
http://prologix.biz/gpib-ethernet-1.2-faq.html

Regards,
Abdul

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Jim Lux
Sent: Sunday, January 27, 2013 8:16 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] GPIB, Proloigix, cables

I spent a couple frustrating hours debugging a test setup with programmable
power supplies and counters (to make automated measurements of freq/Vtune on
some VCOs, as well as "Vsupply pushing")

I'm using something hacked from the sample Python code  and the Prologix
Ethernet device (which has been wonderful for the past few years), but this
time it was a positive ordeal.  I would get timeouts and error messages back
from the devices.

Turns out that I had one bad cable and one with a little piece of paper that
had gotten into the connector when mating it.

So is there some sort of systematic test scheme using the Prologix that
can be used to check out a setup?  Or using John Miles's Prologix
Configurator to exercise it.

___
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] GPIB/HPIB Address 31, Talk Only

[Prologix]

Hi Stan,

As per the GPIB standard [1], valid primary addresses are 0-30. A few
instruments use address 31 to specify TALK ALWAYS mode, but it is by no
means a standard. Not even among HP/Agilent devices.

[1] ANSI/IEEE Std 488.1-1987

Regards,
Abdul

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of stan, W1LE
Sent: Wednesday, August 07, 2013 12:23 PM
To: time-nuts@febo.com
Subject: [time-nuts] GPIB/HPIB Address 31, Talk Only

Hello The Net,

Is address 31, for talk only, a HP/Agilent feature only, or do tothers
provide talk only on the buss ?

I am looking at RF frequency counters to 12 GH, for use with TimeLab.


Stan, W1LE Cape Cod   FN41sr
___
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] linux-gpib working on a RasPI

[Prologix]

Prologix Ethernet controller supports only one client connection. A second
connection will disconnect the first one. Make sense, since a GPIB bus can
have only one (active) controller. Currently, the controller does not allow
a client to lock it exclusively, since that opens up the issue of orphaned
locks due to crashed clients, and so on. One solution is to develop a piece
of host software (a controller "server", if you will) that acts as the
(only) client to the controller, and to which the various test programs then
connect. This software can arbitrate access to the controller. For further
help, please contact us off-list.

Regards,
Prologix

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bob Stewart
Sent: Monday, November 11, 2013 9:36 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] linux-gpib working on a RasPI

I've got a question for you Hal.  We can take it offline if it's more than a
response or two.  I opened two sockets to the adapter in one program and
found the same socket id.  OK, that tells me that I have to address each
device before sending commands to it, rather than having a separate socket
id.  And it makes sense.  But how does it work when I have multiple programs
wanting to access different devices?  Am I doing to need to put some lock
code in so that the adapter is globally locked to one program while it
sending or receiving to/from a device to prevent the two programs stepping
on each other?  For example, I've got 2 counters and a voltmeter.  It's no
stretch to think of two different tests, or even three using those
instruments separately.

Bob





>
> From: Hal Murray 
>To: Discussion of precise time and frequency measurement 
>
>Sent: Monday, November 11, 2013 11:08 PM
>Subject: Re: [time-nuts] linux-gpib working on a RasPI
> 
>
>
>> With the Prologix unit, I had a homebrew client library (in "C") up 
>> and running well enough to make me happy the day it arrived.  I do 
>> not use NI-VISA, and trying to figure out that mares nest just left 
>> me completely mystified.  I'm a good enough C programmer to do the 
>> things I need once I have connectivity and a simple interface.  No 
>> connection to Prologix, etc, etc, etc.
>
>Another thumbs up on the Prologix unit.
>
>I'm not sure I had it running the day it arrived, but it was close to 
>that. (I may have been busy with something else.)  My only stumbling 
>was getting the flow control turned on.
>
>YMMV etc.  I prefer working with low level bits rather than fancy GUI
stuff.
>
>I have one connected to a HP 5334B.  It's been collecting data for 
>several years.
>
>My demo/starter code is out on the web.  I'll dig up the URL if anybody 
>has problems finding it.
>
>
>
>--
>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
>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.

[time-nuts] The high-tech world of old-world watches

[Prologix]

http://www.economist.com/news/technology-quarterly/21603232-horology-mechani
cal-watches-are-leaving-their-digital-cousins-dust?fsrc=scn/tw/te/tq/ed/hite
chworldoldworlwatch

Not a lot of detailed data to compare, but interesting reading nevertheless.


___
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.