[time-nuts] HP 5730 data polling technique?

Azelio Boriani azelio.boriani at gmail.com
Thu Sep 3 18:52:20 EDT 2015


The manual reports that the 5370 is SRQ capable but no example is
given. Anyway, the operation is the serial_poll and read_status_byte
sequence, when the status byte reports the error 0, then a measurement
is complete and the result can be read. How to implement the SRQ
management depends on your GPIB interface and its software suite
(ionsrq to install the SRQ handler for the 82357B and its C library,
for example).

On Thu, Sep 3, 2015 at 12:14 AM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> --------
> In message <CAP_SGzeoWcQdLA77EE8-10AigkwzzCTh-w5Eim-2uV4mpwiQtA at mail.gmail.com>
> , Paul Alfille writes:
>
>>I am stymied by what should be a simple task: I'd like to gather sequential
>>measurements from my HP5370B.
>
> You can do it two ways.
>
> Either use the EXT ARM to pace your measurements, and the computer
> just reads them as they happen.
>
> Or you can use the MD2 mode, where measurements only start when the
> computer sends "MRM" to the counter.
>
> I usually use the former method because I get more precise pacing
> of the measurements (I feed EXT ARM from a HP33120).
>
> --
> 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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