[Tinyos-devel] Patches to FTSP and CC2420 for 32kHz sync and LPL functionality

[Razvan Musaloiu-E.]

Hi!

On Thu, 18 Jun 2009, Philip Levis wrote:

>
> On Jun 18, 2009, at 3:26 PM, Razvan Musaloiu-E. wrote:
>
>> Hi!
>> 
>> On Thu, 18 Jun 2009, Philip Levis wrote:
>> 
>>> 
>>> On Jun 17, 2009, at 5:41 PM, Razvan Musaloiu-E. wrote:
>>> 
>>>> Actually, I implemented a default behavior for LPL some time ago:
>>>> 	http://hinrg.cs.jhu.edu/git/?p=razvanm/tinyos-2.x.git
>>> 
>>> 
>>> Can you point me at where in the tree it is?
>>> 
>> 
>> The name of the branch is "default-lpl". Getting it by cloning the whole 
>> repository can be done using the following commands:
>> 	git clone git://hinrg.cs.jhu.edu/git/razvanm/tinyos-2.x.git
>> 	cd tinyos-2.x
>> 	git checkout -b default-lpl origin/default-lpl
>> 
>> In an already existing git tree the default-lpl can be imported using these 
>> commands:
>> 	git fetch git://hinrg.cs.jhu.edu/git/razvanm/tinyos-2.x.git 
>> default-lpl:refs/remotes/razvanm/default-lpl
>> 	git checkout -b default-lpl razvanm/default-lpl
>
> Razvan,
>
> This implementation looks great, with one exception: it would be nice if the 
> LPL setting were stored in a component, rather than being an enum/define. 
> That way, it is possible to write such a component so that the setting could 
> change at runtime. The standard one might just be a function wrapper around 
> the enum, but an ADT would be better.

Quick q: what should this ADT be? Should it be something like this:
 	http://tinyos.cvs.sourceforge.net/viewvc/tinyos/tinyos-2.x/tos/chips/msp430/usart/Msp430UartConfigure.nc?revision=1.4&view=markup
Another option is to be offer a modified LowPowerListening interface.

--
Razvan ME