1.) Initially, the plan was to write a new storage manager for Deluge
T2. Unfortunately, it never got completed, and Deluge T2 is still
using a simple storage manager.
2.) Yes, this is not in the current Deluge T2.
3.) To add more image volumes, just update the volume XML file and a
wiring file. It is hard to determine the number and the size of
volumes each person really needs, so we just put two volumes as an
example.
4.) This one is related to the first comment.
Thank you
Mike
On Dec 19, 2007, at 7:07 AM, David wrote:
Hi TinyOS developers.
Our company is starting some new embedded development, and would like
to do this development in TinyOS 2.x rather than 1.x (nicer docs and
easier development. Includes Dissemination and Collection network
algorithms, etc).
Our main problem with using TinyOS 2.x is that Deluge T2 has a few
problems (I understand that it is an experimental port from TinyOS
1.x). We're interested in sponsoring a TinyOS developer to fix these
problems. Changes can of course go back into the main TinyOS codebase.
Here is a summary of the problems I've found so far and would like to
be fixed (in decreasing order of severity):
1) Deluge T2 dissemination breaks easily
2) Rollback gesture does not work in Deluge T2.
3) Deluge T2 only supports 2 images per mote.
4) The "tos-deluge" tool does not report which image is active
We are offering $400 (US Dollars) for the above to be fixed. Are there
any takers?
If you're interested, here is more specific information:
1) Deluge T2 dissemination breaks easily:
If a (non-base station) mote (running Deluge) starts receiving an
update, and then it is interrupted (for instance, you press the reset
button, or you send the mote a "reprogram" command over deluge), then
the mote stops downloading updates. Also, the mote no longer wants to
download newer program images disseminated from the Base Station. It
just ignores disseminate commands after that point. To fix this
problem the mote needs to be re-connected to a PC so we can update it
with a "tos-deluge
-i" command.
2) Rollback gesture does not work in Deluge T2:
Pressing reset several times does not do anything (besides resetting).
I've compared the tinyos-1.x and 2.x code, it doesn't seem to be
implemented yet in tinyos 2.x's Deluge.
3) Deluge T2 only supports 2 images per mote.
This is a problem because we would like to run several different
tinyos applications on our wireless networks. With Deluge T2 we would
need to write a single application which reads the mote "type" from
flash and then activates different sub-programs based on the "type".
This is not ideal.
4) The "tos-deluge" tool does not report which image is active
"tos-deluge -p" in Deluge T2 doesn't (as far as I can tell) report
which image is currently active on a mote. However, this info is
available in the tinyos-1.x command-line tools.
Regards,
David.
PS: If you make these changes, please update your CVS and your Ubuntu
repository (http://tinyos.stanford.edu/tinyos/dists/ubuntu) so we can
easily install your updated versions (we run Debian, but your Ubuntu
installers are compatible).
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