1. Re: HP3458A calibration memory backup (J. L. Trantham)
 2. Re: HP3458A calibration memory backup (Poul-Henning Kamp)

I've been using an old HP GPIB card in a pci slot in my 7 year old PC. It's running win7 with the latest version of Agilent Connection Expert and I've had the 3458 and three 3457s all hooked up at once with no problems. I don't have any $$$$ lab programs, just hand-enter commands and then copy/paste the data it retrieves to 'notepad'. After every cal, I query the (cal? nnn) data, dump it and save it. Are you saying that it would be possible to use this setup to dump the memory data? Willy On 8/7/2014 10:23 AM, volt-nuts-request@febo.com wrote: > Send volt-nuts mailing list submissions to > volt-nuts@febo.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > or, via email, send a message with subject or body 'help' to > volt-nuts-request@febo.com > > You can reach the person managing the list at > volt-nuts-owner@febo.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of volt-nuts digest..." > > > Today's Topics: > > 1. Re: HP3458A calibration memory backup (J. L. Trantham) > 2. Re: HP3458A calibration memory backup (Poul-Henning Kamp) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 7 Aug 2014 09:14:50 -0500 > From: "J. L. Trantham" <jltran@att.net> > To: "'Discussion of precise voltage measurement'" <volt-nuts@febo.com> > Subject: Re: [volt-nuts] HP3458A calibration memory backup > Message-ID: <012401cfb249$f429ca90$dc7d5fb0$@att.net> > Content-Type: text/plain; charset="us-ascii" > > Poul, > > I would love to know where the CALNUM value is stored. > > Any idea? > > Thanks. > > Joe > > -----Original Message----- > From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On > Behalf Of Poul-Henning Kamp > Sent: Thursday, August 07, 2014 12:36 AM > To: Discussion of precise voltage measurement; Mark Sims > Subject: Re: [volt-nuts] HP3458A calibration memory backup > > -------- > In message <BLU170-W4732A073BE87463FF74529CEE10@phx.gbl>, Mark Sims writes: >> I have three HP3458A's and decided it was time to back up the battery >> backed static RAM chips. [...] >> I dumped the third >> machine from a cold start and one byte was different between each dump. > If you mail those files to me, I can try to see if that bit matters. >

-------- In message <53E39E05.2030504@williams-net.com>, new writes: >Are you saying that it would be possible to use this setup to dump the >memory data? Sure. All you have to do is enter the commands TRIG HOLD QFORMAT NUM MREAD 393216 MREAD 393218 MREAD 393220 ... MREAD 397308 MREAD 397310 and save the results. But that's 2048 MREAD commands, so having a program to do it would be a lot easier... -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.