Hi all,
I'm using CTP to collect multiply motes together to perform some basic
measurements. I now want optimize power consumption, by enabling LPL (low
power listening).
As far as I can tell from various posts on the net, to use LPL together with
CTP one has to use the SendNotifier interface (from CC2420ActiveMessageC -
i'm using TelosB).
As you can see, in aboutToSend I call fatal_problem() to easily verify if
the event is ever signaled. However, it doesn't appear as if the event is
ever signaled/called. Have I done anything wrong in the wiring or something?
Below is relevant code:
Makefile
COMPONENT=MVizAppC
CFLAGS += -I$(TOSDIR)/lib/net/ -I$(TOSDIR)/lib/net/ctp
-I$(TOSDIR)/lib/net/le -I.
CFLAGS += -DCC2420_NO_ADDRESS_RECOGNITION
CFLAGS += -DLOW_POWER_LISTENING
BUILD_EXTRA_DEPS = MVizMsg.class
MVizMsg.java: MViz.h
mig -target=null -java-classname=MVizMsg java MViz.h mviz_msg -o $@
MVizMsg.class: MVizMsg.java
javac MVizMsg.java
include $(MAKERULES)
MVizAppC.nc
[...]
configuration MVizAppC { }
implementation {
components MainC, MVizC, LedsC, new TimerMilliC(),
new SensirionSht11C() as Sensor, new DemoSensorC() as
VoltSensor, RandomC;
MVizC.Boot -> MainC;
MVizC.Timer -> TimerMilliC;
MVizC.Read0 -> Sensor.Temperature;
MVizC.Read1 -> Sensor.Humidity;
MVizC.Read2 -> VoltSensor;
MVizC.Leds -> LedsC;
MVizC.Random -> RandomC;
//
// Communication components. These are documented in TEP 113:
// Serial Communication, and TEP 119: Collection.
//
components CollectionC as Collector, // Collection layer
ActiveMessageC, // AM layer
new CollectionSenderC(AM_MVIZ_MSG), // Sends multihop RF
SerialActiveMessageC, // Serial
messaging
new SerialAMSenderC(AM_MVIZ_MSG); // Sends to the
serial port
components CC2420ActiveMessageC;
MVizC -> CC2420ActiveMessageC.CC2420Packet;
MVizC -> CC2420ActiveMessageC.LowPowerListening;
MVizC -> CC2420ActiveMessageC.SendNotifier[AM_MVIZ_MSG]; // TODO:
rewire
MVizC.RadioControl -> ActiveMessageC;
MVizC.SerialControl -> SerialActiveMessageC;
MVizC.RoutingControl -> Collector;
MVizC.Send -> CollectionSenderC;
MVizC.SerialSend -> SerialAMSenderC.AMSend;
MVizC.Snoop -> Collector.Snoop[AM_MVIZ_MSG];
MVizC.Receive -> Collector.Receive[AM_MVIZ_MSG];
MVizC.Intercept -> Collector.Intercept[AM_MVIZ_MSG];
MVizC.RootControl -> Collector;
}
[...]
MVizC.nc
[...]
module MVizC @safe(){
uses {
// Interfaces for initialization:
interface Boot;
interface SplitControl as RadioControl;
interface SplitControl as SerialControl;
interface StdControl as RoutingControl;
// Interfaces for communication, multihop and serial:
interface Send;
interface Receive as Snoop;
interface Receive;
interface AMSend as SerialSend;
interface CollectionPacket;
interface RootControl;
interface Intercept;
// Miscalleny:
interface Timer<TMilli>;
interface Read<uint16_t> as Read0;
interface Read<uint16_t> as Read1;
interface Read<uint16_t> as Read2;
interface Leds;
interface Random;
interface CC2420Packet;
interface LowPowerListening;
interface SendNotifier;
}
}
[...]
event void Boot.booted() {
if (call RadioControl.start() != SUCCESS)
fatal_problem();
if (call RoutingControl.start() != SUCCESS)
fatal_problem();
#if defined(LOW_POWER_LISTENING)
call LowPowerListening.setLocalWakeupInterval(sleep);
#endif
}
event void SendNotifier.aboutToSend(am_addr_t dest, message_t *msg){
// TODO: Enable low power...
fatal_problem();
}
[...]
Med Venlig Hilsen/Best Regards
Jan Christensen
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