hi sunit,
shimmer doesn't support the storage interface for the reason mike gives
(it doesn't have any), and because it has capacious storage in the form
of an sd card with an implementation of a ubiquitous filesystem.
so, if you want to store data with your shimmer, look no further than
fat fs; the canonical example of it use in
-contrib/shimmer/apps/justfatlogging. see the readme there; see also
the adjacent hosttimelogging, which integrates a live timestamp from the
host side. its readme is worth perusing, too.
-steve
On 04/05/2012 03:50 AM, mike healy wrote:
Hi,
I've never used those storage interfaces, but I believe that they are
designed to be used with an external flash chip, not the MCU's flash.
There is no such chip on the shimmer devices.
Instead, if you want to use the "Flash Information Memory" on the
Shimmer (of which there is 256 bytes) take a look at how the
"InternalFlash" interface is used in the BoilerPlate application
(http://tinyos.cvs.sourceforge.net/viewvc/tinyos/tinyos-2.x-contrib/shimmer/apps/BoilerPlate/).
Alternatively, on the Shimmer you have access to massive amounts of
storage in the form of the microSD card. Take a look at JustFATLogging
for an example of how to use this:
http://tinyos.cvs.sourceforge.net/viewvc/tinyos/tinyos-2.x-contrib/shimmer/apps/JustFATLogging/
The program image is gets written to the flash memory in the MSP430
micro-controller. For more info on this, and what can and cannot be
done, take a look at section 5 of the particular MSP430's user guide:
http://www.ti.com/litv/pdf/slau049f
Mike
On Wed, Apr 4, 2012 at 10:59 PM, Sunit Verma <[email protected]
<mailto:[email protected]>> wrote:
Hello,
I have been attempting to access the flash memory of Shimmer sensors
through the Storage Interfaces provided by TinyOS 2.x. I haven't
been able to get any results out of it. Is there any way to access
the flash memory of Shimmer with TinyOS 2.x?
Also, I am wondering where is the image of the program being burned,
get stored in Shimmer?
--
Regards,
Sunit Verma
Graduate Student
Arizona State Univeristy
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