On Wed, Oct 5, 2011 at 8:59 AM, Janos Sallai <[email protected]>wrote:

> Sean,
>
> Modify tos/chips/cc2420x/CC2420XRadioP.nc such that
> CC2420XDriverConfig.requiresRssiCca() always returns FALSE. This will
> prevent the radio driver from carrying out CCA before sending the
> packet. That is, the packet will be transmitted even if the channel is
> busy.
>

Don't you need to tweak something underneath like in the cc2420 h/w itself
too?

Or is the above sufficient to cause the software driver to configure the h/w
appropriately?


>
> Janos
>
> Janos
> On Wed, Oct 5, 2011 at 1:22 AM, Xiaowei <[email protected]> wrote:
> > Hi fellows,
> > Any idea on how to disable csma on cc2420x (tinyOS 2.x)?
> > On cc2420 we can achieve this by setting "ccaOn = TRUE" to "ccaOn =
> FALSE"
> > in tos/chips/cc2420/csma/CC2420CsmaP.nc, does this disable csma
> completely
> > or it just disables CA part in CSMA-CA?
> > Thank you,
> > Sean
> >
> > _______________________________________________
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> >
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-- 
Eric B. Decker
Senior (over 50 :-) Researcher
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