[Tinyos-help] can anyone pls help me...
Nilesh Mishra
nmishra at usc.edu
Sat Jan 26 00:08:22 PST 2008
Quickfix: Treat the number as a uint8_t and then subtract 301 from it. For
example the default RSSI threshold value used for deciding channel clear is
-77 dBm which is stored as uint8_t value 224 (224 -301 = -77). So what ever
value is returned from the register reading should be treated as a unsigned
integer and then subtract 301 from it.
Details: Please read the MSP430 datasheet for more clarification.
Thanks,
Nilesh
On Jan 25, 2008 11:15 PM, Edmund J <versa83 at yahoo.com.sg> wrote:
> hi,
> Anyone knows how to convert the RSSI value(the strength) of tmote sky to
> db? e.g 0xFA to dB? thank you.
>
> Regards,
> Edmund
>
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--
Nilesh Mishra
Embedded Networks Laboratory
University of Southern California,
3710 S. McClintock Avenue, Ronald Tutor Hall (RTH) 418
Los Angeles, CA 90089
mail: nmishra at usc.edu
nilesh.mishra at yahoo.co.in
nilmish at gmail.com
ph: (213) 821-5627 (lab)
(626) 226-7463 (Cell)
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