BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
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The center frequency is selected to be 915 MHz for this the value of the registers are<br />
0x3B, 0x31 and 0x23 respectively.<br />
6.3.3 Bandwidth<br />
65<br />
fcarrier = fXOSC<br />
2 16 .F REQ[23 : 0] (6.2)<br />
The channel bandwidth can be set by the MDMCFG4 register which contains<br />
CHANBW E[1 : 0] and CHANBW M[1 : 0] as specified in the Equation 6.3. A<br />
default value of 203kHz is chosen, value being 0x2D.<br />
6.3.4 Modulation<br />
BWchannel =<br />
fXOSC<br />
(6.3)<br />
8.(4 + CHANBW M).2CHANBW E<br />
The Blocking Reader requires ASK modulation. It is selected by setting<br />
MOD F ORMAT [2 : 0] as 011.<br />
Other register settings of the transceiver are as shown in the table 6.2