R: [Tinyos-help] tinyOS 1.x 2.0 interoperability

[Tempia Filippo]

Phil,
where may I find a doc, if any, that summarizes all the differences
between TinyOS 1.x and 2.x configurations, related to the cc2420
protocol?
I'm trying to update a cc2420-based platform, which is already
compatible with 1.x, to receive 2.x packets, but it is not that easy,
just looking at the TinyOS code...

Thanks,

Filippo

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Filippo TEMPIA 
Wireless Sensor Networks Lab
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-----Messaggio originale-----
Da: Philip Levis [mailto:pal at cs.stanford.edu] 
Inviato: Wednesday, January 10, 2007 4:57 PM
A: Tempia Filippo
Cc: tinyos-help at Millennium.Berkeley.EDU
Oggetto: Re: [Tinyos-help] tinyOS 1.x 2.0 interoperability

On Jan 10, 2007, at 4:45 PM, Tempia Filippo wrote:

> I'm working in TinyOS 2.0 and I would like to program the  
> BaseStation application in order to receive packets from a TinyOS  
> 1.1 mote with the CntToLedsAndRfm application running on it.
>
> As far as I understood there should be radio compatibility between  
> TinyOS 1.1 and 2.0, since the CC2420 is still the same. But it  
> seems that the Base Station does not receive any radio pcks from a  
> TinyOS 1.1 Application.

The packet formats are different. 802.15.4 has different packet  
formats depending on the bits in the frame control field (FCF). For  
example, there are different source and destination addressing modes,  
encryption, etc. TinyOS 1.x does not have a source address in the  
packet; TinyOS 2.x does. So the packet formats are not compatible.

Phil
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