2.4G/CC2500/CC2500芯片/无线模块/无线收发模块/无线鼠标

发表于 2008-7-10 10:18

CC2500无线模块可以做无线鼠标，提供全套AVR程序和硬件图 2.4G无线数据模块（CC2500芯片） 频率范围：2400-2483.5Mhz (90信道) 最大速率：500K 调制方式：MSK，QPSK在500Kbps, GFSK ,OOK在250kbps RF输出功率：0dBm 灵敏度: -101dBm在10Kbps 1% 编程接口：SPI数字接口 电压：1.8-3.6V 最大功耗：20mA 封装形式：COB 模块尺寸：11 X 15 X 8mm (长X宽X高) 天线形式：PCB天线 最大距离：100米 应用范围：工业数据传输，无线遥控，无线鼠标，无线键盘，无线电子标签，遥控玩具，自动化数据采集系统；工业无线控制;水、气、热、电等居民计量表具无线远传自动抄表   无线鼠标接收程序: //接收端程序，内部振荡器，8Mhz #include &ltiom8v.h&gt #include &ltmacros.h&gt #define uint unsigned int #define uchar unsigned char #define h_clk_read    DDRD&=~0x08    #define h_clk_ctrl    DDRD|= 0x08 #define h_data_read   DDRD&=~0x04 #define h_data_ctrl   DDRD|= 0x04 #define h_clk_high    PORTD|=0x08 #define h_clk_low     PORTD&=~0x08 #define h_data_high   PORTD|=0x04 #define h_data_low    PORTD&=~0x04 //以上定义host端clk与data针脚的输入输出，高低电平 #define CSn_on  PORTD|=0x20 #define CSn_off  PORTD&=~0x20 #define sclk_on  PORTD|=0x80 #define sclk_off  PORTD&=~0x80 #define si_on  PORTB|=0x01 #define si_off  PORTB&=~0x01 #define so_read    DDRD&=~0x40 //以上定义CC2500片选和spi针脚各状态 #define burst  0x40 #define read_reg   0x80 #define write_reg  0x00 #define sres       0x30 #define scal       0x33 #define srx        0x34 #define stx        0x35 #define sfrx       0x3a #define sidle      0x36 //以上定义CC2500有关指令 uchar ps2update; uchar tt; uchar sample_rate,resolution,command; uchar frommouse[6]; uchar reply_to_host[4]; void delay(uint tt) {while(tt--);} void timer2_init(void) {  TCCR2 = 0x00; //stop  ASSR  = 0x00;  TCNT2 = 0x00;  TIMSK = 0x80;//interrupt sourse  OCR2  = 50;  //interval parameter } #pragma interrupt_handler timer2_comp_isr:4  //设置PS2协议传输的时间间距 void timer2_comp_isr(void) {uchar temp;  TCNT2 = 0x00;  temp=~PORTD;  PORTD|=temp&0x08;PORTD&=temp|0xf7;  ps2update++; } uchar sendbyte_to_host(unsigned char bitpointer)   //发字节到主机子程序 {uchar i,temp,parity;  ps2update=parity=0;  h_clk_read;h_clk_high;h_data_read;h_data_high;NOP();NOP();  while(!(PIND&0x08))        { while(!(PIND&0x08))NOP();  delay(50);}  h_clk_ctrl;h_data_ctrl;h_data_low;NOP();// send start bit  h_clk_low;  SEI();TCCR2 = 0x0A; //start,prescale=8,CTC mode  while(ps2update!=1);ps2update=0;delay(10);  for(i=0;i!=8;i++)    {temp=(bitpointer&gt&gti)&lt&lt2;     if(temp&0x04)parity++;  PORTD|=temp&0x04; PORTD&=temp|0xfb;  h_clk_read;  while(ps2update!=1)  { if(!(PIND&0x08)){TCCR2=0x00;CLI();TCNT2=0x00;h_data_high;return 0;}  }  ps2update=0;h_clk_ctrl;  while(ps2update!=1);ps2update=0;delay(10);    }  if(parity%2==0) h_data_high;//send parity bit  else h_data_low;  h_clk_read;  while(ps2update!=1)  { if(!(PIND&0x08)){TCCR2=0x00;CLI();TCNT2=0x00;h_data_high;return 0;}  }  ps2update=0;h_clk_ctrl;  while(ps2update!=1);ps2update=0;delay(10);  h_data_high; while(ps2update!=2);ps2update=0;delay(10); // stop bit  TCCR2=0x00; CLI();TCNT2 = 0x00; //stop timer  h_clk_read;NOP();NOP();//wait for release clock     for(i=0;i!=5;i++)     {if(!(PIND&0x08))i=0;delay(50);}  return 1; } uchar read_command(void)       //从主机读命令 {uchar i,temp;uchar return_cmd=0;   h_data_read;h_data_high;   h_clk_read;h_clk_high;delay(3);   for(i=0;i!=51;i++)      {while(!(PIND&0x08));//wait for release clock       if(PIND&0x04)i=0;//wait for data be low   }  while(!(PIND&0x08));delay(5);  h_clk_ctrl;  ps2update=0;temp=0;delay(3);  SEI();TCCR2 = 0x0A;  //start,prescale=8,CTC mode  for(i=0;i!=8;i++)    {while(ps2update!=2);ps2update=0;delay(5);  temp=PIND&0x04;  return_cmd|=(temp&gt&gt2)&lt&lti;    }  while(ps2update!=2);ps2update=0;delay(5);//get parity  while(ps2update!=2);ps2update=0;delay(20);//get stop  h_data_ctrl;h_data_low;//ack  while(ps2update!=2);ps2update=0;  TCCR2=0x00; CLI(); TCNT2 = 0x00;delay(50);//stop timer  h_data_high;delay(10);  h_clk_read;delay(3);//wait for release clock     for(i=0;i!=100;i++)     {if(!(PIND&0x08)){i=0;delay(6);}      delay(6);     }   return return_cmd; } uchar SPI_command(unsigned char bitpointer)    //发指令到CC2500 {uchar i,temp_SI,temp_SO,return_SO;  i=temp_SI=temp_SO=return_SO=0;  sclk_off;NOP();NOP();NOP();  CSn_off;NOP();NOP();//CSn low  while(PIND&0x40);   // wait until SO low  for(i=0;i!=8;i++)    {     NOP();NOP();NOP();NOP();NOP();NOP();     temp_SI=(bitpointer&gt&gt(7-i));     PORTB|=temp_SI&0x01; PORTB&=temp_SI|0xfe;     PORTD|=0x80; NOP();NOP();NOP();  temp_SO=PIND&0x40;     return_SO|=((temp_SO&lt&lt1)&gt&gti);  NOP();NOP();NOP();NOP();NOP();NOP();  sclk_off;    }  if((!bitpointer&0x40)) // bitpointer is a cmmd,set CSn & SCLK high     {CSn_on;NOP();NOP();NOP();   sclk_on;  }  return return_SO; } void SPI_host_send(unsigned char bitpointer)     //写字节到CC2500，功能兼容SPI_command {uchar i,temp_SI;  i=temp_SI=0;  sclk_off;NOP();NOP();NOP();  CSn_off;NOP();NOP();//CSn low  while(PIND&0x40);delay(3);   // wait until SO low  for(i=0;i!=8;i++)    {NOP();NOP();NOP();NOP();NOP();NOP();     temp_SI=(bitpointer&gt&gt(7-i));     PORTB|=temp_SI&0x01; PORTB&=temp_SI|0xfe;     sclk_on;   NOP();NOP();NOP();NOP();NOP();NOP();     sclk_off;    } } uchar SPI_host_read(void)                     //读字节从CC2500 {uchar i,temp_SO,return_SO;  i=temp_SO=return_SO=0;  for(i=0;i!=8;i++)    {  sclk_on;NOP();NOP();NOP();  temp_SO=PIND&0x40;     return_SO|=((temp_SO&lt&lt1)&gt&gti);  NOP();NOP();NOP();NOP();NOP();NOP();  sclk_off;  NOP();NOP();NOP();NOP();NOP();NOP();    }  return return_SO; } void cc2500_RX_initialization(void)           //CC2500初始化 {uchar read;  SPI_host_send(sres);delay(1000);  SPI_host_send(scal);delay(1000);  SPI_host_send(0x00);SPI_host_send(0x07);  SPI_host_send(0x06);SPI_host_send(0x06);//fixed packet length =6  SPI_host_send(0x07);SPI_host_send(0x84);  SPI_host_send(0x08);SPI_host_send(0x0c);  SPI_host_send(0x0b);SPI_host_send(0x09);  SPI_host_send(0x0d+burst+write_reg);  SPI_host_send(0x5d);  SPI_host_send(0xb1);  SPI_host_send(0x38);  SPI_host_send(0x3d);  SPI_host_send(0x3b);  SPI_host_send(0x73);  SPI_host_send(0xa2);  SPI_host_send(0xf8);  SPI_host_send(0x01);  SPI_host_send(0x07);  SPI_host_send(0x30);  SPI_host_send(0x18);  SPI_host_send(0x1d);  SPI_host_send(0x1c);  SPI_host_send(0xc7);  SPI_host_send(0x00);  SPI_host_send(0xb2);  CSn_on;NOP();NOP();NOP();NOP();NOP();NOP();  SPI_host_send(0x21);SPI_host_send(0xb6);  SPI_host_send(0x23);SPI_host_send(0xca);  SPI_host_send(0x26);SPI_host_send(0x11);  calibrate:  read=SPI_command(sfrx);//sfrx   SPI_host_send(scal);delay(690);  SPI_host_send(0x25+read_reg);read=SPI_host_read();  while(read==0x3f){SPI_host_send(0x25+read_reg);read=SPI_host_read();}  }    void main(void) {uchar i,j,readcc2500,buffer;  OSCCAL=0xa9;  PORTB=0xff;PORTD=0xff;  DDRB=0x01;DDRD=0xb0;  delay(600);  MCUCR = 0x00;  GICR  = 0x00;  TIMSK = 0x00;  delay(51000);  cc2500_RX_initialization();  timer2_init();  sample_rate=100;resolution=0x03;  ps2update=0;    finish_init:  SPI_command(sfrx);  SPI_command(srx);  while(9)    { SPI_host_send(0xf5);readcc2500=SPI_host_read();  //循环检测CC2500有无接收到数据      if(readcc2500==0x01)//check whether CRC ok       {        SPI_host_send(0xff);        for(tt=0;tt!=6;tt++)           {frommouse[tt]=SPI_host_read();}        CSn_on;NOP();NOP();NOP();sclk_on;NOP();NOP();NOP();         if((frommouse[0]==0xbb)&&(frommouse[1]==0xaa))  //模拟地址过滤          {for(tt=2;tt!=6;tt++)        {to_host:                             //把无线鼠标的相关字节发回电脑         buffer=sendbyte_to_host(frommouse[tt]);      if(buffer==0)        {while(!(PIND&0x08))                     { while(!(PIND&0x08))NOP();  delay(50);}//每次发字节到主机后都要检测主机有无拉低CLK中止传输      h_data_read;h_data_high;NOP();NOP();      if(!(PIND&0x04))break;      else goto to_host;     }        }              }        h_data_read;h_data_high;NOP();NOP();NOP();  if(!(PIND&0x04)){SPI_command(sidle);break;}  //睡眠CC2500     SPI_command(sfrx);     SPI_command(srx);    }  h_data_read;h_data_high;NOP();NOP();NOP();  if(!(PIND&0x04)){SPI_command(sidle);break;}    }     command=read_command();    //从主机接收命令并处理          initialization:            switch(command)             {case 0xff:reply_to_host[0]=0xfa;reply_to_host[1]=0xaa;//reset                        reply_to_host[2]=0x00;j=3;break;//pass              case 0xf6:reply_to_host[0]=0xfa;j=1;break;//set default              case 0xf5:reply_to_host[0]=0xfa;j=1;break;//disable report              case 0xf2:reply_to_host[0]=0xfa;reply_to_host[1]=0x03;j=2;break;//get ID                 case 0xea:reply_to_host[0]=0xfa;j=1;break;//set stream mode              case 0xe6:reply_to_host[0]=0xfa;j=1;break;//scaling 1:1              case 0xe7:reply_to_host[0]=0xfa;j=1;break;//scaling 2:1              case 0xe9:reply_to_host[0]=0xfa;reply_to_host[1]=0x00;//status request                        reply_to_host[2]=resolution;               reply_to_host[3]=sample_rate;j=4;break;              case 0xe8:buffer=sendbyte_to_host(0xfa);  //set resolution                        resolution=read_command();reply_to_host[0]=0xfa;j=1;break;              case 0xf3:buffer=sendbyte_to_host(0xfa);  //set sample rate                        sample_rate=read_command();reply_to_host[0]=0xfa;j=1;break;              case 0xf4:buffer=sendbyte_to_host(0xfa);goto finish_init;  //set resolution           }         for(i=0;i!=j;i++)           {h_clk_read;h_clk_high;h_data_read;h_data_high;delay(3);            while(!(PIND&0x08));         if(!(PIND&0x04))break;               else buffer=sendbyte_to_host(reply_to_host);           }     command=read_command();  goto initialization; } 无线鼠标发送程序: //transmitter //crystal = 4.0Mhz //NO movement in 327s then M8 turns off mouse&CC2500 & goes to power-down mode,resulting in 0.2ma consumption //every time CC2500 finishes transmitting,it will be forced to goto SLEEP mode //NO movement in 2s, M8 goes to IDLE state,consumption decreases from 7.23ma down to 4.48ma //watch dog timer:WDTCR = 0x0D,512K pulses,about 0.52s #include &ltiom8v.h&gt #include &ltmacros.h&gt #define uint unsigned int #define uchar unsigned char #define m_clk_read    DDRD&=~0x08 #define m_clk_ctrl    DDRD|= 0x08 #define m_data_read   DDRC&=~0x01 #define m_data_ctrl   DDRC|= 0x01 #define m_clk_high    PORTD|=0x08 #define m_clk_low     PORTD&=~0x08 #define m_data_high   PORTC|=0x01 #define m_data_low    PORTC&=~0x01 #define mouse_on      PORTD&=~0x10 #define mouse_off     PORTD|=0x10 //以上定义PS2鼠标的CLK,DATA针脚的输入输出，高低电平和开，关鼠标电源 #define CSn_on  PORTD|=0x20 #define CSn_off  PORTD&=~0x20 #define sclk_on  PORTD|=0x80 #define sclk_off  PORTD&=~0x80 #define si_on  PORTB|=0x01 #define si_off  PORTB&=~0x01 #define so_read    DDRD&=~0x40 //以上定义cc2500有关的spi协议的针脚 #define burst  0x40 #define read_reg   0x80 #define write_reg  0x00 #define scal       0x33 #define srx        0x34 #define stx        0x35 #define sftx       0x3b #define spwd       0x39 #define sxoff      0x32 #define snop       0x3d //以上定义cc2500有关的指令 #define cc2500_on      PORTB&=~0x80 #define cc2500_off     PORTB|=0x80 //以上定义cc2500的电源开关 #define enable_int0           GICR |=0x40 #define disable_int0          GICR &=~0x40 #define enable_int1           GICR |=0x80 #define disable_int1          GICR &=~0x80 #define enable_powerdown      MCUCR |=0xa0 #define disable_powerdown     MCUCR &=~0xa0 #define enable_idle           MCUCR |=0x80 #define disable_idle          MCUCR &=~0x80 #define wdt_off               WDTCR = (1&lt&ltWDCE)|(1&lt&ltWDE);WDTCR =0x00 uint  sleeptime; uchar tt,gotosleep; uchar  sample_rate,resolution,command; uchar frommouse[6]; void delay(uint tt) {while(tt--);} void timer0_init(void)      //定义睡眠定时器 {  TCCR0 = 0x00;                                 //stop  TCNT0 = 0x00;                                 //set count  TIMSK |= 0x01;                                //interrupt sourse  TCCR0 = 0x05;                                 //start timer } #pragma interrupt_handler timer0_ovf_isr:10 void timer0_ovf_isr(void) {TCNT0 = 0x00;  sleeptime++;  if(sleeptime==5000)gotosleep=1;               //about 327 seconds } #pragma interrupt_handler int0_isr:2      //定义掉电睡眠的外中断唤醒服务程序 void int0_isr(void) {delay(500);  TCCR0 = 0x05;disable_int0;disable_powerdown;  PORTD=0xec;PORTB=0xff;PORTC=0xff;  DDRB=0x81;DDRD=0xb0;DDRC=0x00;  mouse_on;cc2500_on;WDTCR = 0x0D;      //使用看门狗 } #pragma interrupt_handler int1_isr:3      //定义待机睡眠的外中断唤醒服务程序 void int1_isr(void) {  disable_int1;disable_idle;WDTCR = 0x0D; } uchar read_from_mouse(void)          //定义从鼠标读字节子程 {uchar i,temp;  uchar receive=0;   m_clk_high;m_data_high;   m_clk_read;m_data_read;//NOP();NOP();   WDR();   while(PIND&0x08);                           //wait start bit   if(PINC&0x01)while(9);                      //if start bit is faulty,wait for watchdog to reset   while(!(PIND&0x08));   NOP();   for(i=0;i!=8;i++)       {while(PIND&0x08);     temp=PINC&0x01;receive|=temp&lt&lti;        NOP();     while(!(PIND&0x08));WDR();     NOP();    }   while(PIND&0x08);                        //wait parity bit   NOP();   while(!(PIND&0x08));   NOP();   while(PIND&0x08);NOP();                 //wait stop bit   while(!(PIND&0x08));NOP();   WDR();   return receive; } void send_a_command(uchar command)            //定义发命令到鼠标子程 {uchar i,temp,parity;  parity=0;  WDR();  m_clk_ctrl;m_data_ctrl;NOP();NOP();m_clk_low;//pull clock low  delay(20);  m_data_low;delay(20);                        //pull data low  m_clk_high;m_clk_read;                       //release clock    for(i=0;i!=8;i++)       {while(PIND&0x08);NOP();     temp=command&gt&gti;        if(temp&0x01)parity++;     PORTC|=temp&0x01; PORTC&=temp|0xfe;        while(!(PIND&0x08));NOP();WDR();    }    while((PIND&0x08));NOP();    if(parity%2==0) m_data_high;    else m_data_low;                           //send parity bit    while(!(PIND&0x08));NOP();    while((PIND&0x08));NOP();    m_data_high;                               //send stop bit    while(!(PIND&0x08));WDR();    m_data_read;NOP();NOP();    while(PIND&0x08);NOP();                   //wait ack    while(!(PIND&0x08));    WDR(); } void connectmouse_init(void)                //定义鼠标初始化 {uchar i,buffer,counter;    WDR();     send_a_command(0xff);buffer=read_from_mouse();           //reset   buffer=read_from_mouse();buffer=read_from_mouse();WDR();   send_a_command(0xf2);buffer=read_from_mouse();buffer=read_from_mouse();//get ID   send_a_command(0xf3);buffer=read_from_mouse();           //set sample   send_a_command(200); buffer=read_from_mouse();           //sample rate =200   send_a_command(0xf3);buffer=read_from_mouse();           //set sample rate   send_a_command(0x64);buffer=read_from_mouse();           //sample rate =100   send_a_command(0xf3);buffer=read_from_mouse();           //set sample   send_a_command(0x50);buffer=read_from_mouse();           //sample rate =80   send_a_command(0xf2);buffer=read_from_mouse();buffer=read_from_mouse();//get ID   send_a_command(0xf3);buffer=read_from_mouse();           //set sample rate   send_a_command(100); buffer=read_from_mouse();            //sample rate =100   send_a_command(0xe8);buffer=read_from_mouse();           //set resolution   send_a_command(0x02);buffer=read_from_mouse();           //resolution = 4 counts/mm   send_a_command(0xe6);buffer=read_from_mouse();           //set scaling 1:1   send_a_command(0xf4);buffer=read_from_mouse();           //enable data reporting   } uchar SPI_command(unsigned char bitpointer)          //发指令到CC2500 {uchar i,temp_SI,temp_SO,return_SO;  i=temp_SI=temp_SO=return_SO=0;  WDR();  sclk_off;NOP();  CSn_off;NOP();                                               //CSn low  while(PIND&0x40);                                           // wait until SO low  for(i=0;i!=8;i++)    {     NOP();     temp_SI=(bitpointer&gt&gt(7-i));     PORTB|=temp_SI&0x01; PORTB&=temp_SI|0xfe;     PORTD|=0x80;NOP();  temp_SO=PIND&0x40;     return_SO|=((temp_SO&lt&lt1)&gt&gti);  NOP();  sclk_off;    }  if(!(bitpointer&0x40))                  // bitpointer is a cmmd,set CSn & SCLK high     {CSn_on;NOP();   sclk_on;NOP();  }  WDR();  return return_SO; } void SPI_host_send(unsigned char bitpointer)    //写字节到CC2500，功能兼容SPI_command {uchar i,temp_SI;  i=temp_SI=0;  WDR();  sclk_off;NOP();  CSn_off;NOP();                                                //CSn low  while(PIND&0x40);NOP();                                       // wait until SO low  for(i=0;i!=8;i++)    {NOP();     temp_SI=(bitpointer&gt&gt(7-i));     PORTB|=temp_SI&0x01; PORTB&=temp_SI|0xfe;     sclk_on;   NOP();     sclk_off;    }  WDR(); } uchar SPI_host_read(void)                        //读字节从CC2500 {uchar i,temp_SO,return_SO;  i=temp_SO=return_SO=0;  WDR();  for(i=0;i!=8;i++)    {  sclk_on;NOP();  temp_SO=PIND&0x40;     return_SO|=((temp_SO&lt&lt1)&gt&gti);  NOP();  sclk_off;  NOP();    }  WDR();  return return_SO; }     void cc2500_TX_initialization(void)              //初始化cc2500 {uchar read;  SPI_host_send(scal);delay(130);  SPI_host_send(0x01);SPI_host_send(0x07);  SPI_host_send(0x06);SPI_host_send(0x06);                   //fixed packet length =6  SPI_host_send(0x08);SPI_host_send(0x0c);  SPI_host_send(0x0b);SPI_host_send(0x09);  SPI_host_send(0x0d+burst+write_reg);  SPI_host_send(0x5d);  SPI_host_send(0xb1);  SPI_host_send(0x38);  SPI_host_send(0x2d);  SPI_host_send(0x3b);  SPI_host_send(0x73);  SPI_host_send(0xd2);  SPI_host_send(0xf8);  SPI_host_send(0x01);  SPI_host_send(0x07);  SPI_host_send(0x30);  SPI_host_send(0x18);  SPI_host_send(0x1d);  SPI_host_send(0x1c);  SPI_host_send(0xc7);  SPI_host_send(0x00);  SPI_host_send(0xb2);  CSn_on;NOP();  SPI_host_send(0x21);SPI_host_send(0xb6);  SPI_host_send(0x23);SPI_host_send(0xca);  SPI_host_send(0x26);SPI_host_send(0x11);  SPI_command(sftx);  SPI_host_send(scal);delay(85);  SPI_host_send(0x25+read_reg);read=SPI_host_read();  while(read==0x3f){SPI_host_send(0x25+read_reg);read=SPI_host_read();}  SPI_command(spwd);  } void main(void) {uchar readcc2500,i,j;  OSCCAL=0x9f;  PORTD=0xec;PORTB=0x7f;PORTC=0xff;  DDRB=0x81;DDRD=0xb0;DDRC=0x00;  CLI();  MCUCR = 0x00;  GICR  = 0x00;  TIMSK = 0x00;  delay(25);frommouse[0]=0xbb;frommouse[1]=0xaa;  timer0_init();//for(i=2;i!=6;i++)frommouse=0x00;    cc2500_TX_initialization();  sample_rate=100;resolution=0x03;  sleeptime=0x00;gotosleep=0x00;  for(i=0;i!=21;i++){delay(33000);}  connectmouse_init();  WDR();SEI();WDTCR = 0x0D;      //开看门狗    while(9)  {startloop:   m_clk_high;m_clk_read;NOP();NOP();     if(!(PIND&0x08))        {         for(tt=2;tt!=6;tt++)         {frommouse[tt]=read_from_mouse();}  //从鼠标读字节     if((!(frommouse[2]&0x08))||(frommouse[2]&0xc0))//check bit3,6,7 of 1st byte        {while(9);}        m_clk_ctrl;m_clk_low;                          //inhibit mouse transmit     sleeptime=0;WDR();               SPI_host_send(0x7f);                           //burst write TXfifo     for(tt=0;tt!=6;tt++)        {SPI_host_send(frommouse[tt]);}             //写字节到CC2500     CSn_on;NOP();                                  //end burst write     SPI_command(stx);delay(100);                    //go to TXmode     SPI_host_send(0xf5);readcc2500=SPI_host_read();//check whether TX finished           while(readcc2500!=0x01){SPI_host_send(0xf5);readcc2500=SPI_host_read();}     SPI_command(spwd);                   //go into SLEEP mode,TXfifo lose value     WDR();delay(300);     m_clk_high;m_clk_read;NOP();                   //release mouse tansmit     }  WDR();     if((gotosleep)&&(sleeptime&gt=5000))               //掉电睡眠定时器满足，进入掉电睡眠     {gotosleep=0;sleeptime=0;TCCR0 = 0x00;TCNT0 = 0x00;   enable_int0;   DDRD=0x10;DDRC=DDRB=0x00;PORTD=PORTB=PORTC=0xff;mouse_off;cc2500_off;   enable_powerdown;CLI();wdt_off;SEI();SLEEP();     }  if(sleeptime&gt30)//1.96seconds                   //待机睡眠定时满足，进入待机睡眠     {m_clk_high;m_clk_read;NOP();      enable_int1;enable_idle;CLI();wdt_off;SEI();SLEEP();     }    } } 相关链接:<a href='http://auction1.taobao.com/auction/item_detail-0db2-a87459b7ea2395a73e67d17c283b2e32.jhtml'>http://auction1.taobao.com/auction/item_detail-0db2-a87459b7ea2395a73e67d17c283b2e32.jhtml</a>

2.4G/CC2500/CC2500芯片/无线模块/无线收发模块/无线鼠标

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