Hi,
We have bought 10 MicaZ motes that we received in April 2007. We
just found out that the flash does not work in most of them. I fetched
the latest TinyOS2 version from the CVS repository and the same happens:
the flash applications do not work at all. For instance:
tinyos-2.x/apps/tutorials/BlinkConfig or
tinyos-2.x/apps/tests/storage/Config do not light any led at all. These
applications work for other older MicaZ motes we have.
Would it be possible to get a working version of TinyOS for the
newer MicaZ motes? By when?
Best regards,
Paulo Rogério Pereira
> Philip Levis:
> >/On Mar 5, 2008, at 10:38 AM, Janos Sallai wrote:
> />/
> />>/ I have recently learned that newer micaz motes and OEM modules use
> />>/ a newer version of the at45db, which is not fully backwards
> />>/ compatible with the old version.
> />>/
> />>/
> />>/
> />>/ From my experiences with the iris mote, which has the new version
> />>/ (at45db041d), the micaz code would not work with the new chip.
> />>/ Could anybody verify this by running the flash test apps on a
> />>/ recently purchased micaz?
> />>/
> />/
> />/Is there any way for software to detect which chip a node has?
> />/This is going to be pretty hairy, if you have to include both chip
> />/implementations and switch between then at runtime. Or are the
> />/differences trivial? It would be nice to avoid the 433/900MHz mica2
> />/debacle.
> /
> Yes, it is possible to programmatically detect which chip the mote has.
> I've just skimmed the manuals, and it appears that it is possible to
> come up with a single piece of code that works on both revisions, so we
> wouldn't need to branch based on the chip ID.
>
> The problem is that with the older version it was possible to check if
> the chip is ready by toggling the clock and checking a pin. This feature
> was removed from the at45db041d from revision G (after February, 2007).
> I think that checking for ready can be done by reading the status
> register on all at45db versions.
>
> Before touching the code, could somebody check if this problem exists at
> all?
>
> Phil
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