[Tinyos-devel] Copying directly from RxFIFO to TxFIFO of CC2420

Adam Dunkels adam at sics.se
Fri Aug 15 02:29:58 PDT 2008


Philip Levis wrote:
>> If this is what you want to do then you'll probably find relevant this
>> paper:
>> 	http://www.sics.se/~adam/osterlind08approaching.pdf
> 
> Double-buffering still requires buffering.

Correct - there is no way around copying/buffering with the CC2420. We 
show that it is possible to achieve a 109 kbit/s multi-hop throughput, 
despite packet copying over the SPI bus, by moving the copying away from 
the critical path.

/adam
-- 
Adam Dunkels <adam at sics.se>
http://www.sics.se/~adam/



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