[volt-nuts] 3457A - should I preserve SRAM contents, or purposely corrupt them by removing power?

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Jan 25 10:40:11 EST 2016

In message <CANX10hALwjXT+8eV8LYWdqy9EEZ+AnaWihgqEyRzntsY80v9RQ at mail.gmail.com>
, "Dr. David Kirkby (Kirkby Microwave Ltd)" writes:

>I'm wondering if I would be better purposely removing the battery, and
>putting a short across the SRAM so I ensure the contents are definitely
>lost. My logic is that

I would save the content before doing that, so that I could compare it
to whatever I got back from calibration.

My experience so far says that there probably is a GPIB command which
can read out the memory, but of course you still need to know the
address-space layout.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at 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.

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