[time-nuts] RS232 output on a 53181A

Angus not.again at btinternet.com
Tue Jul 18 09:04:42 EDT 2017


Also, since it's a p rather than any other character, my guess is that
it probably was deliberate - although whether it was meant to be
shipped like that is another question.


On Wed, 12 Jul 2017 11:56:24 -0400, you wrote:

>Well ASCII * is 2a in Hex, p is 70 so that seems an unlikely substitution
>for a failing EPROM.
>But 0 is 30 Hex, only one bit different from p.
>On Wed, Jul 12, 2017 at 10:39 AM, Angus <not.again at btinternet.com> wrote:
>> Hi,
>> I've just been using an Agilent 53181A, but the serial output is not
>> quite what I had expected. On the 53131A's that I've used the
>> placeholder character on the RS232 output is an asterisk, but with
>> this unit it is a lower case 'p'. Where the 53131A sends '2,*** u',
>> this 53181A send '2,ppp u'. The only references to a placeholder that
>> I saw in the manuals referred to an asterisk.
>> The firmware version is 4613.
>> Anyway, just wondering if anyone knows if this is correct, or maybe
>> it's just the EPROM starting to fail.
>> Thanks,
>> Angus.
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