[OpenTRV-dev] EEPROM amnesia investigation

Adrian Godwin artgodwin at gmail.com
Mon Jun 27 14:08:37 BST 2016


Further tests :

Is the whole EEPROM erased or just the key ?
Do you have any sample code with no other OpenTRV parts :  does that also
fail ?


On Mon, Jun 27, 2016 at 1:16 PM, Deniz Erbilgin <deniz.erbilgin at gmail.com>
wrote:

> Hi Guys,
>
> I've started trying to isolate our problem with the keys and node IDs not
> being retained in EEPROM.
>
> A quick summary and links to an ongoing write up can be found in our wiki:
> https://github.com/opentrv/OTWiki/wiki/Key-Amnesia-Investigation
>
> Summary copied from the wiki:
>
>    - The key is definitely written to EEPROM.
>    - The key is always lost to all FFs.
>    - Key loss and retention are independent of resetting and
>    power-cycling.
>    - Long term key retention only seems to require the EEPROM location to
>    be written to and then cleared first.
>
> I'd appreciate any ideas and input people can give me because the more I
> investigate, the more bizarre this seems.
>
> Regards,
>
> Deniz
>
> _______________________________________________
> OpenTRV-dev mailing list
> OpenTRV-dev at lists.opentrv.org.uk
> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>
>
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