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Re: dsPIC serial number

From Tauno Voipio <tauno.voipio@notused.fi.invalid>
Newsgroups comp.arch.embedded
Subject Re: dsPIC serial number
Date 2016-07-06 13:44 +0300
Organization A noiseless patient Spider
Message-ID <nlinf8$a91$1@dont-email.me> (permalink)
References (3 earlier) <nlb065$g5t$1@dont-email.me> <nlb0cf$g5t$2@dont-email.me> <nlba37$frr$1@dont-email.me> <nlhjp6$b12$1@dont-email.me> <nlil77$3tb$1@dont-email.me>

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On 6.7.16 13:06, Syd Rumpo wrote:
> On 06/07/2016 01:35, Don Y wrote:
>> On 7/3/2016 8:13 AM, Syd Rumpo wrote:
>>> I think you've convinced me that it can't be done /easily/, so it
>>> looks like a
>>> serial ID chip is needed.  I was rather hoping there was something I'd
>>> overlooked in the manual.
>>
>> I guess it depends on what you consider "easily" -- the fact that
>> you're expecting (?) folks to do the upgrades themselves suggests
>> you've already imposed a certain level of competence on them.
>>
>> Another way of looking at it:  what's the potential (loss of)
>> value if they "get the number wrong"?  Will the product stop
>> working?  (you've previously indicated the "correct number" doesn't
>> entitle them to anything special...)
>
> The customers would usually have access to a PIC programmer - both the
> equipment and the person - of some kind and would get a hex file,
> probably by email or from the web.  I can't mandate a particular type of
> programmer.
>
> I had hoped that there was some easy way of embedding a number in the
> dsPIC and not overwriting it when firmware is changed.  The ID is really
> for traceability.  Sadly, the dsPIC has no EEPROM.
>
> Cheers

The configuration registers are separate from the code memory.
There are some user bytes in the register bank. A normal program
update should not write anything to the configuration area.

-- 

-TV

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Thread

dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-03 11:51 +0100
  Re: dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-03 12:01 +0100
  Re: dsPIC serial number Don Y <blockedofcourse@foo.invalid> - 2016-07-03 04:14 -0700
    Re: dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-03 12:46 +0100
      Re: dsPIC serial number Don Y <blockedofcourse@foo.invalid> - 2016-07-03 05:24 -0700
        Re: dsPIC serial number Don Y <blockedofcourse@foo.invalid> - 2016-07-03 05:28 -0700
          Re: dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-03 16:13 +0100
            Re: dsPIC serial number Don Y <blockedofcourse@foo.invalid> - 2016-07-05 17:35 -0700
              Re: dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-06 11:06 +0100
                Re: dsPIC serial number Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-07-06 13:44 +0300
                Re: dsPIC serial number Syd Rumpo <usenet@nononono.co.uk> - 2016-07-06 13:16 +0100
                Re: dsPIC serial number Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-07-06 16:36 +0300
                Re: dsPIC serial number Richard Damon <Richard@Damon-Family.org> - 2016-07-16 21:50 -0400
  Re: dsPIC serial number Paul Rubin <no.email@nospam.invalid> - 2016-07-03 09:46 -0700
  Re: dsPIC serial number Les Cargill <lcargill99@comcast.com> - 2016-07-03 12:46 -0500
    Re: dsPIC serial number Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2016-07-03 21:04 +0300

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