[Tinyos Core WG] TEP 109

[Gilman Tolle]

Here's the updated TEP, and it's been checked into CVS.

Gil

Gilman Tolle wrote:
> That's a very good point.
> 
> I can't think of a good reason why the information needed to provide the 
> DeviceMetadata interface would be hard to obtain - so, okay, I support 
> making it a MUST instead of a SHOULD. Can someone else can show a 
> situation in which it would be a hardship to provide this interface 
> alongside the standard SIDs?
> 
> Gil
> 
> Philip Levis wrote:
>> On Dec 6, 2006, at 9:17 AM, Gilman Tolle wrote:
>>
>>> I agree that TEP109 should add the 'most significant bit' call to the 
>>> DeviceMetadata interface, and say that all DemoSensor*C apps SHOULD 
>>> provide DeviceMetadata.
>>>
>>> I'll change it.
>>
>> If you want generic data-processing components to be able to use the 
>> SID interfaces, then it MUST provide DeviceMetadata. Otherwise you 
>> cannot perform any operations that optimize the information content of 
>> a set of bits.
>>
>> The original observation had been that the MUST for left shifting had 
>> to be moved out of the SIDs TEP as they had reached down to the ADC 
>> where it was no longer possible. The agreement was that this would 
>> move into the sensorboards TEP. This is in the 8/16 notes.
>>
>> Phil
>>
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