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

[Sagar Bijwe]

I should have elaborated more. I just needed to know whether there exists a
control command (i could not find in CC2420 datasheet)  to transfer data
directly from rxbuffer to txbuffer. I don't want to use any external kit for
the purpose of programming CC2420. Driver level modifications can be handled
once i know that such a command exists. According to current implemenation,
we have to first copy pkt from rxbuffer to msp & then to txbuffer (this
makes spi bus bottleneck). I want to remove this critical path. Thanks for
your response anyway.

-Sagar Bijwe
Research:here <http://sag.bijwe.googlepages.com/mtp>

On Thu, Aug 14, 2008 at 2:04 AM, Eric Decker <cire831 at gmail.com> wrote:

> How are you going to do that without programming the CC2420?
> There has to be somekind of control signalling which has to touch the
> CC2420.
> And there are state implications as well.
>
> It has to hook through the driver.  Starting with the CC2420 driver will be
> necessary.
>
> eric
>
>
> On Wed, Aug 13, 2008 at 12:39 PM, Sagar Bijwe <sag.bijwe at gmail.com> wrote:
>
>> Is there a way to copy directly from RxFIFO of CC2420 to TxFIFO?
>> I'm looking for the improved pkt forwarding without programming CC2420
>> itself.
>>
>>
>> - Sagar Bijwe <http://sag.bijwe.googlepages.com/home.html>
>>
>>
>>
>> _______________________________________________
>> Tinyos-devel mailing list
>> Tinyos-devel at millennium.berkeley.edu
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-devel
>>
>>
>
>
> --
> Eric B. Decker
> Senior (over 50 :-) Researcher
> Autonomous Systems Lab
> Jack Baskin School of Engineering
> UCSC
>
>
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