t6004c.nc

来自「tinyos2.0版本驱动」· NC 代码 · 共 69 行

/**
 * 本程序用于测试UART0驱动，传感器为CO2 6004
 * @author Majy & Lizm
 * @date 2008/09/28
 */

#include "Timer.h"
#include "T6004.h"

module T6004C
{
  uses
  {
    interface Boot;
    interface Leds;
    interface Timer<TMilli> as Timer;
    interface AMSend;
    interface Packet;
    interface SplitControl as SerialControl;
    interface Read<uint16_t> as CO2Reader;
  }
}

implementation
{
  message_t packet;
  
  event void Boot.booted()
  {
    call SerialControl.start();
  }
  
  event void SerialControl.startDone(error_t error)
  {
    //call Timer.startOneShot(1000);
    call Timer.startPeriodic(1500);
    //周期性Timer，如果在AMSend.sendDone()中触发下一次Timer则不会执行
    //1s周期较短，串口监听的数据重复2次，1.5S也有部分重复，2S不重复
  }
  
  event void SerialControl.stopDone(error_t error) {}
  
  event void Timer.fired()
  {
    call CO2Reader.read();
    call Leds.led0Toggle();
  }
  
  event void CO2Reader.readDone(error_t result, uint16_t val)
  {
    CO2Msg *rcm;
    call Leds.led1Toggle();
    rcm = (CO2Msg*)call Packet.getPayload(&packet, sizeof(CO2Msg));
    if(call Packet.maxPayloadLength() < sizeof(CO2Msg))
    {
      return;
    }
    rcm -> CO2Data = val;
    call AMSend.send(AM_BROADCAST_ADDR, &packet, sizeof(CO2Msg));
  }
  
  event void AMSend.sendDone(message_t* bufPtr, error_t error)
  {
    call Leds.led2Toggle();
    //call Timer.startOneShot(1000);
    return;
  }
}