简述：发送和接受数据的程序分别烧录到两个节点上，发送方发送流水灯数据，接受方接受数据并实现流水灯
1、发送和接受程序用到的组件及其接口如图(通过make telosb docs获得)所示：
2、发送程序sendC.nc代码：
#include "Timer.h"
#include "send.h"module sendC @safe()
{
uses{
interface Boot;
interface Timer<TMilli> as Timer;interface SplitControl as AMControl;
interface Packet;
interface AMSend;
}
}
implementation
{
uint8_t dataS=1;
bool busy=FALSE;//if write ‘false‘,`false‘ undeclared here (not in a function)
message_t pkt;void startTimer()//internal function
{
call Timer.startPeriodic(500);
}//start radio
event void Boot.booted()
{
call AMControl.start();
}
event void AMControl.startDone(error_t err)
{
if(SUCCESS==err)
startTimer();
else
call AMControl.start();
}
event void AMControl.stopDone(error_t err){}task void compute()
{
if(dataS>=0x04)
dataS=1;
else
dataS=dataS<<1;
}
event void Timer.fired()
{
if(!busy)
{
MsgToRadio* trpkt=(MsgToRadio*)(call Packet.getPayload(&pkt,sizeof(MsgToRadio)));
if(NULL==trpkt)
return;
trpkt->nodeid=TOS_NODE_ID;//发送节点的ID，TOS_NODE_ID为在make telosb install，1时设置的
trpkt->dataS=dataS;
//AM_BROADCAST_ADDR广播模式,修改AM_BROADCAST_ADDR为2，则节点只向2号节点发，其他节点不响应
if(call AMSend.send(AM_BROADCAST_ADDR,&pkt,sizeof(MsgToRadio))==SUCCESS)//在if(!busy)里面????
busy=TRUE;
}
post compute();
}
event void AMSend.sendDone(message_t* msg,error_t err)
{
if(msg==&pkt)
busy=FALSE;
}
}
3、发送程序sendCAppC.nc代码：
configuration sendAppC
{
}
implementation
{
components MainC,sendC;
components new TimerMilliC();components ActiveMessageC;
components new AMSenderC(6);sendC.Boot->MainC;
sendC.Timer->TimerMilliC;sendC.AMControl->ActiveMessageC;
sendC.Packet->AMSenderC;
sendC.AMSend->AMSenderC;}
4、发送程序send.h代码：
#ifndef SEND_H
#define SEND_Htypedef nx_struct MsgToRadio
{
nx_uint8_t nodeid;
nx_uint8_t dataS;
}MsgToRadio;#endif
5、接受程序核心代码：
//an event-driven process
event message_t* Receive.receive(message_t* msg,void* payload,uint8_t len)
{
if(len==sizeof(MsgFromRadio))
{
MsgFromRadio* frpkt=(MsgFromRadio*)payload;
call Leds.set(frpkt->dataR);
}
return msg;
}
参考网址：http://tinyos.stanford.edu/tinyos-wiki/index.php/Mote-mote_radio_communication