[Tinyos-help] RSSI values of mica2
ram kishore
rapoliit at gmail.com
Tue Jun 3 03:57:49 PDT 2008
Hi,
I receive RSSI values( uint16_t type) using Msg->strength feild
.At maximum power, I get RSSI(ADC) value as 0x0015.Given in
/tos/platform/mica2/ADCREFM.nc file(attached) is the following
formula:
ADC = (Vport*1024) / Vref; Where Vref =1.23V as in ADCREFM file.I find
Vport using above equation for 0x0015(integer=21) and substitute in
RSSI(dBm) = -50 * Vport -45.5 ;
I get -46.2612 dBm which is wrong actually.I use tinyos1.1.10.I posted
this problem several times all in vain.Please help me out.I am going
out of head.Please.
Thanking you,
Kishore
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