On Apr 23, 2006, at 10:44 PM, Liu, Ping ((GE, Research)) wrote:
Hi Phil
Thanks for the reply. However,the set-mote-id script just generates
different images with different node IDs, fundamentally it's still
a flashing/reflashing mechanism. I would like to avoid it for
security reasons, e.g. I don't want to my motes to be flashed by
end users except allowing some simple configurations. Is there a
way around it?
You mentioned that in tinyOS 2.x, one could modify arbitrary
variables, does it still require reflashing? I am not up to date
with 2.x development at all.
Thanks again for the help, I really appreicate it.
Ah, you want to change the variables dynamically at runtime? There
are a couple of approaches:
1) The Drip component of the SNMS management system;
2) PyTOS;
3) Use Mate', a virtual machine that lets you run programs which set
the variables.
3) is by far the heaviest-weight of the approaches (it gives you a
full scripting interface), and will also require that you write a bit
of nesC code to set the variables, so it sounds like more than what
you want and more effort than you're interested in. 1) and 2) are
both reasonably lightweight options.
There may be others out there, that I'm not aware of.
Phil
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