[Tinyos-help] Using motes as flash drives?

[Xavier Orduña]

Hi David,

What about the CC2511<http://focus.ti.com/docs/prod/folders/print/cc2511f16.html>Texas
Instrument chip?

In includes a 2.4 Ghz Radio, a 8051 and a Full speed usb controller. They
provide code to use the controller as a USB Mass storage device.

The only problem is that they use another kind of radio insted the well
known CC2420.

I think speed is limited by serial protocol.

Regards,

Xavi

On Jan 25, 2008 10:37 AM, David <wizzardx at gmail.com> wrote:

> Hi TinyOS readers.
>
> Is it possible for a regular tinyos mote to behave like a USB flash
> drive? For instance, when the PC wants to read a block from disk, a
> tinyos app interprets the request, reads from flash, and returns over
> USB the data requested.
>
> A few problems with the above (as I currently understand it):
>
> * Motes have hardware (low level firmware, etc) that make them look
> like a regular serial device to a PC rather than USB mass storage.
> This may not be possible to bypass with a regular tinyos application
> (I don't know the first thing about USB mass storage protocols).
>
> * Motes USB interface is very slow. For some reason they can only
> transfer around 1k/s (at least with tmote sky). Anyone know why?
>
> It may be possible to do the above with an appropriate FUSE linux
> driver and tinyos app, but I'm more interested in not requiring
> special drivers. so eg you could plug the mote into any PC that
> supports regular USB flash drives and not need to install drivers
> first to access the data.
>
> If the above were possible, then a possible application would be to
> drop files on the motes and have a tinyos app interpret them. Or to
> receive data wirelessly from other motes and then store this data in
> the flash drive for a PC to retrieve. These would however require
> support for reading and writing a FAT filesystem in flash. Probably
> not that simple an undertaking.
>
> Any comments?
>
> Regards,
>
> David.
> _______________________________________________
> Tinyos-help mailing list
> Tinyos-help at millennium.berkeley.edu
> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>



-- 
www.alcim.net
Buscant sempre nous reptes, alguna proposta?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.millennium.berkeley.edu/pipermail/tinyos-help/attachments/20080125/88629d1a/attachment.html