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Groups > sci.electronics.design > #454383

Re: Identification of modules

From Piotr Wyderski <peter.pan@neverland.mil>
Newsgroups sci.electronics.design
Subject Re: Identification of modules
Date 2017-03-31 11:39 +0200
Organization ATMAN - ATM S.A.
Message-ID <obl84f$fve$1@node2.news.atman.pl> (permalink)
References <obl01o$8a8$1@node2.news.atman.pl> <obl40f$c7m$1@dont-email.me> <obl4en$o4b$1@node1.news.atman.pl> <obl6ki$k80$1@dont-email.me>

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Don Y wrote:

> So, you're planning on discarding the EEPROM in the DS2438?

Yes, not going to use it at all.

> (Make sure the configuration isn't implemented in EEPROM if you mistrust it!)

The problem is not in EEPROM, but the lack of power
supply/communitation in the case of spare modules.
The powered ones can be automatically reprogrammed
once a year, just in case.

> Why not just opt for a one-wire ADC?

Where, on the module? It's exactly how 2438 is going to be used.

> Or, some discrete logic that you clock, remotely?

Too big.

> (presumably, you have some time to query the system's
> configuration -- you're not trying to hot swap cards
> and bring them on-line "instantly"?)

Yes, no hot-swap capability required.

> So, you're prepared to do an end-of-life buy as you head
> into initial production?

I can add a spare DS2438 in a bag for every produced module.

> What about masked parts?

The scale is far to small, can't afford.

	Best regards, Piotr

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Thread

Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 09:21 +0200
  Re: Identification of modules Don Y <blockedofcourse@foo.invalid> - 2017-03-31 01:31 -0700
    Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 10:36 +0200
      Re: Identification of modules Don Y <blockedofcourse@foo.invalid> - 2017-03-31 02:16 -0700
        Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 11:39 +0200
          Re: Identification of modules Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-31 11:32 +0100
            Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 12:59 +0200
          Re: Identification of modules Don Y <blockedofcourse@foo.invalid> - 2017-03-31 11:55 -0700
    Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 11:30 +0200
  Re: Identification of modules rickman <gnuarm@gmail.com> - 2017-03-31 05:20 -0400
    Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 11:53 +0200
      Re: Identification of modules rickman <gnuarm@gmail.com> - 2017-03-31 06:16 -0400
        Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 12:39 +0200
          Re: Identification of modules rickman <gnuarm@gmail.com> - 2017-03-31 13:27 -0400
            Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 22:14 +0200
              Re: Identification of modules rickman <gnuarm@gmail.com> - 2017-03-31 17:48 -0400
                Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-04-03 10:57 +0200
    Re: Identification of modules John Devereux <john@devereux.me.uk> - 2017-03-31 11:39 +0100
      Re: Identification of modules rickman <gnuarm@gmail.com> - 2017-03-31 13:38 -0400
        Re: Identification of modules Piotr Wyderski <peter.pan@neverland.mil> - 2017-03-31 22:21 +0200
  Re: Identification of modules Joe Chisolm <jchisolm6@earthlink.net> - 2017-03-31 13:02 -0500
  Re: Identification of modules Tim Wescott <seemywebsite@myfooter.really> - 2017-03-31 16:18 -0500

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