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

Philip Levis pal at cs.stanford.edu
Wed Aug 13 17:28:27 PDT 2008


On Aug 13, 2008, at 2:53 PM, Sagar Bijwe wrote:

> No. I have already been through that paper. That paper talks about  
> packet pre-copying which actually puts the packet into transmission  
> buffer, in advance. This pkt is then transmitted when another packet  
> is received by just sending a signal. Note that bringing pkt to msp  
> is inevitable here. The idea is similar. But if a pkt comes just  
> check its header if it's intended for the node otherwise relay it.  
> So we just need to copy header to msp. I want to get rid of other  
> unnecessary data copying. I think you got my point. One of my  
> colleague is already in touch with the author of the paper.

The CC2420 data sheet will have the answer. I'm pretty sure, but not  
100% sure, that the answer is no.

Phil


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