[Tinyos-help] About TOSH_READ_RADIO_CCA_PIN()

정관희 masigani at gmail.com
Fri Jun 13 04:52:58 PDT 2008


I use cc2420 radio chip. So, I know it has a CCA pin.
What i'm saying, TOSH_READ_RADIO_CCA_PIN() checks whether CCA pin is
available or not.
That is, I want to confirm how to run this function through its code.
how do I do?
2008/6/13 Min Guo <min.guomin at gmail.com>:

>
> Which radio do you use? On cc2420 there is a CCA pin available. CCA
> indicates whether the channel is clear or with energy, and surely the
> neighborhood nodes affects if they are communicating in the same
> channel.
>
> On Fri, Jun 13, 2008 at 10:34 AM, JeongKwanhee <khjeong at gist.ac.kr> wrote:
> > Hello, all members of TinyOS
> >
> >
> >
> > In general TinyOS, TOSH_READ_RADIO_CCA_PIN() is able to use some function
> if
> > we want to check the state of channel.
> >
> > But, I don't know how to calculate whether channel is clear or not.
> >
> >
> >
> > I just think that it compares to rssi and cca.
> >
> > But, in this case, I think it does not consider the interference of
> adjacent
> > nodes.
> >
> > For example, SINR.
> >
> >
> >
> > So, I want to check TOSH_READ_RADIO_CCA_PIN() function, and then to fix
> this
> > function.
> >
> >
> >
> > If you know about this, please contact to me. Thank you.
> >
> >
> >
> > _________________________________________________________
> >
> > Kwanhee Jeong
> >
> > Tel: +82-62-970-3147
> > Cell: +82-16-387-6870
> > Fax: +82-62-970-2291
> >
> > _________________________________________________________
> >
> >
> >
> > _______________________________________________
> > Tinyos-help mailing list
> > Tinyos-help at millennium.berkeley.edu
> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
> >
>
>
>
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