The first bit of code I wrote was for DOS/WIN98. It was kludged into an old
serial port monitoring program that I wrote in like 1985... using Microsoft
QuickC.
I am now working on a version that uses John Miles GPIBKIT library. It is on
an NT system... the code is also in C (Microsoft Visual
Behalf Of Mark Sims
> Sent: Thursday, August 21, 2014 1:53 AM
> To: volt-nuts@febo.com
> Subject: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory
> chips?
>
> I'm porting over my HP3458A NVRAM data dumper program to use John Miles
> GPIBKIT routines.
Mark,
I just ordered the ProLogix USB-GPIB converter specifically to read the
contents of my 3458A. Would it be possible to get a copy of your program
that you wrote to read the memory contents. It would be greatly
appreciated and save me a lot of work and frustration.
thanks,
Randy
On Wed,
Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Mark Sims
Sent: Thursday, August 21, 2014 1:53 AM
To: volt-nuts@febo.com
Subject: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory
chips?
I'm porting over my HP3458A NVR
I'm porting over my HP3458A NVRAM data dumper program to use John Miles GPIBKIT
routines. It should make it usable with most GPIB interfaces out there and be
able to run under more modern versions of Windoze.
My first crack at it is working, but it is quite a bit slower than my original
pro
he prices on theBay right now are particularly
> ridiculous but good deals can be had. The majority of these units use
> parallel port connections and need WinXP as the OS. The later versions,
> starting around $500 will connect via USB and be able to utilize Win7 or
> Win8.
>
> G
Why risk having to re-cal the meter? There are several GPIB-232CV's on Ebay
right now... Two of them are under $60 Buy-It-Now... cheap enough to be
worth trying. The Prologix USB converter is around $100... $150 new from the
factory.
_
The problem with removing the chip and copying it is the very real chance of
glitching the contents in the process. Much better to make a backup copy first.
The 32Kx8 NVRAMS are used for system memory and things like storage of user
programs and data.
Note that the two 32Kx8 devices are form a
ood luck.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of John Phillips
Sent: Wednesday, August 20, 2014 8:41 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K
me
I do have a ni gpib-usb-hs
http://sine.ni.com/nips/cds/view/p/lang/en/nid/201586
I was hoping to remove the chip, read the data with a usb programer and
wright the data back into a new chip before installing it.
Then do a full calibration.
If the 16k chip has the cal vars what do the other 32k chip
You REALLY don't want to mess with that 24 pin NVRAM chip... it contains the
calibration memory. If you bugger the data in it, you get to spend a couple
of grand getting the meter back into working order. I know a couple of people
that did just that.
The solution is to first make a backup co
t; > Which chips are these? Dallas NVRAM's?
>> > > >
>> > > > Do you have a part number? They can probably be read and programmed
>> > with
>> > > > the appropriate chip programmer.
>> > > >
>> > > > Joe
>>
> > > > Which chips are these? Dallas NVRAM's?
> > > > >
> > > > > Do you have a part number? They can probably be read and
> programmed
> > > with
> > > > > the appropriate chip programmer.
> > > > >
> &
propriate chip programmer.
> > > >
> > > > Joe
> > > >
> > > >
> > > > -Original Message-
> > > > From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com]
> > On
> > > > Behalf Of John
to avoid spending 3k is to bus the cpu board, this is cheaper.
>
>
>
> > Gesendet: Mittwoch, 20. August 2014 um 22:37 Uhr
> > Von: "John Phillips"
> > An: "Discussion of precise voltage measurement"
> > Betreff: Re: [volt-nuts] HP 3458A Mem tes
hillips
> > Sent: Wednesday, August 20, 2014 3:54 PM
> > To: Discussion of precise voltage measurement
> > Subject: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory
> > chips?
> >
> > Hi,
> > I have removed my 32k memory chips form my 3458A. Doe
t;
> Joe
>
>
> -Original Message-
> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
> Behalf Of John Phillips
> Sent: Wednesday, August 20, 2014 3:54 PM
> To: Discussion of precise voltage measurement
> Subject: [volt-nuts] HP 3458A Mem tes
Sent: Wednesday, August 20, 2014 3:54 PM
To: Discussion of precise voltage measurement
Subject: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory
chips?
Hi,
I have removed my 32k memory chips form my 3458A. Doe anyone have an easy way
to connect them to a windows computer. USB would
Hi,
I have removed my 32k memory chips form my 3458A. Doe anyone have an easy
way to connect them to a windows computer. USB would be my preferred
connection to a 28 and 24 pin socket. I would like to be able to read and
write to the chips to validate the data.
I have replace the chips and still g
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