Empathy List Archives

MS

Mark Sims

Thu, Feb 19, 2015 4:23 AM

IF you have a GPIB interface, download the GPIBKIT package from John Miles' web site. It now contains my HP3458 cal ram dumper program. It will extract the cal info from the NVRAM, make a backup binary image of the cal ram chip , and dump a formatted and commented listing of the cal data.
The binary data file can be used to program a replacement NVRAM chip when the battery in the old chip dies and you need to replace it... saving you a buncha bucks for a re-calibration of the instrument.

IF you have a GPIB interface, download the GPIBKIT package from John Miles' web site. It now contains my HP3458 cal ram dumper program. It will extract the cal info from the NVRAM, make a backup binary image of the cal ram chip , and dump a formatted and commented listing of the cal data. The binary data file can be used to program a replacement NVRAM chip when the battery in the old chip dies and you need to replace it... saving you a buncha bucks for a re-calibration of the instrument.

JP

John Phillips

Thu, Feb 19, 2015 4:25 PM

Is there a way to change the data on the chip in the meter from the front
panel or gpib? What is John's url?

On Wed, Feb 18, 2015 at 8:23 PM, Mark Sims holrum@hotmail.com wrote:

IF you have a GPIB interface, download the GPIBKIT package from John
Miles' web site. It now contains my HP3458 cal ram dumper program. It
will extract the cal info from the NVRAM, make a backup binary image of
the cal ram chip , and dump a formatted and commented listing of the cal
data.
The binary data file can be used to program a replacement NVRAM chip when
the battery in the old chip dies and you need to replace it... saving you
a buncha bucks for a re-calibration of the instrument.

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

--

John Phillips

Is there a way to change the data on the chip in the meter from the front panel or gpib? What is John's url? On Wed, Feb 18, 2015 at 8:23 PM, Mark Sims <holrum@hotmail.com> wrote: > IF you have a GPIB interface, download the GPIBKIT package from John > Miles' web site. It now contains my HP3458 cal ram dumper program. It > will extract the cal info from the NVRAM, make a backup binary image of > the cal ram chip , and dump a formatted and commented listing of the cal > data. > The binary data file can be used to program a replacement NVRAM chip when > the battery in the old chip dies and you need to replace it... saving you > a buncha bucks for a re-calibration of the instrument. > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > -- *John Phillips*

C

cfo

Thu, Feb 19, 2015 7:35 PM

On Thu, 19 Feb 2015 04:23:07 +0000, Mark Sims wrote:

IF you have a GPIB interface, download the GPIBKIT package from John
Miles' web site. It now contains my HP3458 cal ram dumper program. It
will extract the cal info from the NVRAM, make a backup binary image of
the cal ram chip , and dump a formatted and commented listing of the
cal data.
The binary data file can be used to program a replacement NVRAM chip
when the battery in the old chip dies and you need to replace it...
saving you a buncha bucks for a re-calibration of the instrument.

I did a "linux-gpib" "addon lib" that fakes a few parts of GPIBKIT , so
you can use Mark's/PHK's program , and i mailed the source to Mark.

/CFO

On Thu, 19 Feb 2015 04:23:07 +0000, Mark Sims wrote: > IF you have a GPIB interface, download the GPIBKIT package from John > Miles' web site. It now contains my HP3458 cal ram dumper program. It > will extract the cal info from the NVRAM, make a backup binary image of > the cal ram chip , and dump a formatted and commented listing of the > cal data. > The binary data file can be used to program a replacement NVRAM chip > when the battery in the old chip dies and you need to replace it... > saving you a buncha bucks for a re-calibration of the instrument. I did a "linux-gpib" "addon lib" that fakes a few parts of GPIBKIT , so you can use Mark's/PHK's program , and i mailed the source to Mark. /CFO

volt-nuts@lists.febo.com

3458a BASIC commands for today???