Dear Gnawali and all,
I really need a good Link Estimation that works on many different
platforms (e.g. Telosb, mica2, micaz etc). It will be good to have a 4-bit
link estimation that is reliable.
I have tried to use the LinkEstimation interface however, it always return
same 255 value. Can someone please guide me that what I am doing wrong? I
really appreciate your help.
Here is the code.
+++++++++++++ LinkEstTestC.nc ++++++++++++
#include <Timer.h>
#include "printf.h"
module LinkEstTestC {
uses interface Boot;
uses interface SplitControl as RadioControl;
uses interface StdControl as LEStart;
uses interface Leds;
uses interface LinkEstimator;
uses interface Timer<TMilli>;
}
implementation {
event void Boot.booted() {
call RadioControl.start();
}
event void RadioControl.startDone(error_t err) {
if (err != SUCCESS) {
call RadioControl.start();
} else {
call LEStart.start();
call Timer.startPeriodic(2000);
}
}
event void RadioControl.stopDone(error_t err) {}
event void Timer.fired() {
uint16_t linkQuality = call LinkEstimator.getLinkQuality(5);
printf("LinkQ = %u \n", linkQuality);
call Leds.led2Toggle();
printfflush();
}
event void LinkEstimator.evicted(am_addr_t neighbor) {}
}
+++++++++++++++++ LinkEstTestAppC.nc ++++++++++++
configuration LinkEstTestAppC {}
implementation {
components LinkEstTestC, MainC, LedsC, ActiveMessageC;
components new TimerMilliC(), LinkEstimatorP;
LinkEstTestC.Boot -> MainC;
LinkEstTestC.RadioControl -> ActiveMessageC;
LinkEstTestC.Leds -> LedsC;
LinkEstTestC.Timer -> TimerMilliC;
LinkEstTestC.LEStart -> LinkEstimatorP;
LinkEstTestC.LinkEstimator -> LinkEstimatorP;
}
+++++++++++++++++++++ Makefile ++++++++++++++++++++
COMPONENT=LinkEstTestAppC
CFLAGS += -I$(TOSDIR)/lib/printf \
-I$(TOSDIR)/lib/net \
-I$(TOSDIR)/lib/net/le \
-I$(TOSDIR)/lib/net/ctp
include $(MAKERULES)
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