testperiodicp.nc

无线传感器网络操作系统tinyos下的cc2420测试驱动程序

/*
 * Copyright (c) 2005-2006 Rincon Research Corporation
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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/**
 * @author David Moss
 * Rx == 0
 * Tx != 0
 */

#include "TestPeriodic.h"

module TestPeriodicP {
  uses {
    interface Boot;
    interface SplitControl;
    interface LowPowerListening;
    interface AMSend;
    interface Receive;
    interface AMPacket;
    interface Packet;
    interface Leds;
    interface Timer<TMilli>;
  }
}

implementation {
 
  uint8_t count;
  message_t fullMsg;
  bool transmitter;
  
  /**************** Prototypes ****************/
  task void send();
  
  /**************** Boot Events ****************/
  event void Boot.booted() {
    transmitter = (call AMPacket.address() != 0);
    count = 0;
    
    call LowPowerListening.setLocalSleepInterval(1000);
    call SplitControl.start();
  }
  
  event void SplitControl.startDone(error_t error) {
    if(transmitter) {
      post send();
    }
  }
  
  event void SplitControl.stopDone(error_t error) {
  }
  
  
  /**************** Send Receive Events *****************/
  event void AMSend.sendDone(message_t *msg, error_t error) {
    if(transmitter) {
      count++; 
      call Timer.startOneShot(1000);
      call Leds.led0Off();
    }
  }
  
  event message_t *Receive.receive(message_t *msg, void *payload, uint8_t len) {
    if(!transmitter) {
      call Leds.led1Toggle();
    }
    return msg;
  }
  
  /**************** Timer Events ****************/
  event void Timer.fired() {
    if(transmitter) {
      post send();
    }
  }
  
  /**************** Tasks ****************/
  task void send() {
    TestPeriodicMsg *periodicMsg = (TestPeriodicMsg *) call Packet.getPayload(&fullMsg, NULL);
    periodicMsg->count = count;
    call LowPowerListening.setRxSleepInterval(&fullMsg, 1000);
    if(call AMSend.send(0, &fullMsg, sizeof(TestPeriodicMsg)) != SUCCESS) {
      post send();
    } else {
      call Leds.led0On();
    }
  }
}