原创 具备跳号跳频和跳址的nrf905的C51演示程序

void WritenRFConfig(unsigned char rxaddr[]) using 0//配置nRF905
{
  TRX_CE = 0;//设置nRF905为待机方式
  _nop_();
  CSN = 0;      // Spi enable for write a spi command
  SpiReadWrite(WC);    // Write config command
  SpiReadWrite(rxaddr[8]);                       //中心频率低8位
  SpiReadWrite(PA_PWR_10dBm | HFREQ_PLL_433MHz); //发射+10dBm,发射频率433MHz,中心频率第9位=0
  SpiReadWrite(TX_AFW_4BYTE | RX_AFW_4BYTE);     //接收地址宽度4字节,发送地址宽度4字节
  SpiReadWrite(RX_PW_32BYTE);                    //接收数据宽度32字节
  SpiReadWrite(TX_PW_32BYTE);                    //发送数据宽度32字节
  SpiReadWrite(rxaddr[0]);                       //接收有效地址第1字节
  SpiReadWrite(rxaddr[1]);                       //接收有效地址第2字节
  SpiReadWrite(rxaddr[2]);                       //接收有效地址第3字节
  SpiReadWrite(rxaddr[3]);                       //接收有效地址第4字节
  SpiReadWrite(CRC16_EN | XOF_16MHz);            //CRC16模式使能,晶体振荡器频率16MHz
  CSN = 1;      // Disable Spi
  TRX_CE = !TX_EN;//
}

unsigned char VerifynRFConfig(void) using 0//校验配置nRF905
{
unsigned char error = 0;
  TRX_CE = 0;//设置nRF905为待机方式
  _nop_();
  CSN = 0;      // Spi enable for write a spi command
  SpiReadWrite(RC);    // Read config command
  SpiReadWrite(0xff);                       //中心频率低8位
  if (SpiReadWrite(0xff) != (PA_PWR_10dBm | HFREQ_PLL_433MHz)) error ++; //发射+10dBm,发射频率433MHz,中心频率第9位=0
  if (SpiReadWrite(0xff) != (TX_AFW_4BYTE | RX_AFW_4BYTE)) error ++;     //接收地址宽度4字节,发送地址宽度4字节
  if (SpiReadWrite(0xff) != (RX_PW_32BYTE)) error ++;                    //接收数据宽度32字节
  if (SpiReadWrite(0xff) != (TX_PW_32BYTE)) error ++;                    //发送数据宽度32字节
  SpiReadWrite(0xff);                       //接收有效地址第1字节
  SpiReadWrite(0xff);                       //接收有效地址第2字节
  SpiReadWrite(0xff);                       //接收有效地址第3字节
  SpiReadWrite(0xff);                       //接收有效地址第4字节
  if (SpiReadWrite(0xff) != (CRC16_EN | XOF_16MHz)) error ++;            //CRC16模式使能,晶体振荡器频率16MHz
  CSN = 1;      // Disable Spi
  TRX_CE = !TX_EN;//
  return error;
}

/*******************************************************************************************/
//function SetTxMode();
/*******************************************************************************************/
void SetTxMode(void) using 0    
{ 
  _nop_();
  _nop_();
  _nop_();
  TX_EN=1;
  _nop_();
  TRX_CE=0;
  _nop_();
  _nop_();
  _nop_();
}    
/*******************************************************************************************/
//function SetRxMode();
/*******************************************************************************************/
void SetRxMode(void) using 0
{
  _nop_();
  _nop_();
  _nop_();
  TX_EN=0;
  _nop_();
  TRX_CE=1;
//650uS
  _nop_();
  _nop_();
  _nop_();
}

void SystemIoInit(void) using 0
{
  IE = 0x00;//关闭中断
  P2 = 0x9d;//P2口初始化
  P0 = 0xff;//P0口初始化
  P1 = 0xff;//P1口初始化
  P3 = 0xff;//P3口初始化
//  nRFPowerUP();
}

void UserSetup(void) using 0//用户运行环境设置
{
  KeyInit();//键盘初始化
  nRFInit();//无线模块初始化
  SystemBuffers.TimeCount = 0;
}

void ClrWdt(void)  using 0//喂狗
{
  WDTRST = 0x1e;//89s52内狗
  WDTRST = 0xe1;//89s52内狗
}

/*------------------------------------
         定时器T0中断服务程序
------------------------------------*/
void t0proc() interrupt TF0_VECTOR using 1
{
}

/*------------------------------------
         定时器T1中断服务程序
------------------------------------*/
void t1proc() interrupt TF1_VECTOR using 1
{
}

/*------------------------------------
         定时器T2中断服务程序(5mS)
------------------------------------*/
void t2proc() interrupt TF2_VECTOR using 0
{
unsigned char key;
code unsigned char KeyPosTab[] = {0x01, 0x02, 0x04, 0x08};
  TF2 = 0;
  if (PCON & GF0_) {//中断是从主循环内跳入的才能喂狗
    ClrWdt();//清除看门狗计数器
    PCON &= ~GF0_;//清除标志
  }
  key = ~P0;//接收键盘数据每次可取多键)
  if (key & KeyPosTab[SystemBuffers.TimeCount & 0x03]) {//有键压下(每次只取1键以实现“零耗时消除键盘抖动”)
    SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] ++;//压键计数
    if (SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] == 2) {//短压键
      SystemBuffers.WaitTime = 0;
      KeyCommandExec(0, SystemBuffers.TimeCount & 0x03);//单击键Key00()~Key03()
 }
    else if (SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] >= SysPushKeyTime) {//长压键150 * 20mS = 3。0S
      SystemBuffers.WaitTime = 0;
   KeyCommandExec(2, SystemBuffers.TimeCount & 0x03);//长压键Key20()~Key23()
   SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] = 3;//清除长压键计数器(躲过单击键)
    }
  }
  else {//无键压下(包括放键)
    if (SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] >= 2) {//放键事件
      SystemBuffers.WaitTime = 0;
   KeyCommandExec(1, SystemBuffers.TimeCount & 0x03);//键释放Key10()~Key13()
 }
 else {
   nRFReadWrite();//无线收发模块
 }
    SystemBuffers.KeyCount[SystemBuffers.TimeCount & 0x03] = 0;//清除压键计数器
  }
  SystemBuffers.TimeCount++;//继续下1个5mS延时
  if ((SystemBuffers.TimeCount & ~0x80) >= 100){//5mS*100=500mS
    SystemBuffers.WaitTime ++;
    if (SystemBuffers.WaitTime >= SysWaitTime) {//0.5*20=10S
   P0 = 0xff;//关显示
      SystemBuffers.WaitTime = 0;
    }
    SystemBuffers.TimeCount &= 0x80;
 SystemBuffers.TimeCount ^= 0x80;//取反闪烁位
  }
}

/*------------------------------------*/
void sioproc() interrupt SIO_VECTOR using 1
{
unsigned char i;
  if (RI) {//接收中断
    RI = 0;
 if (SioBuffers.SioRXCount && (SioBuffers.SioRXCount <= 32)) {//允许串口接收数据
   SioBuffers.SioRxBuff[32 - SioBuffers.SioRXCount] = SBUF;
   SioBuffers.SioRXCount --;
   if (SioBuffers.SioRXCount == 0) {
     for (i = 0; i < 32; i ++) {
       SioBuffers.SioTxBuff = SioBuffers.SioRxBuff;//自收自发
       SystemBuffers.nRFTxBuff = SioBuffers.SioTxBuff;//更新无线发送数据
  }
/*
  switch(SystemBuffers.nRFTxBuff[9]) {
    case 0x81: LED0 = 0;break;
    case 0x82: LED1 = 0;break;
    case 0x83: LED2 = 0;break;
    case 0x84: LED3 = 0;break;
    case 0x03: LED2 = 0;break;
    case 0x04: LED3 = 0;break;
     }
*/
  SioBuffers.SioRXCount = 32;//串口接收缓冲区满
  SioBuffers.SioTXCount = 32;//串口发送缓冲区满
  TI = 1;//立即发送
     SystemBuffers.nRFTxCount = 32;//要求间接无线发送
   }
 }
 else SioBuffers.SioRXCount = 0;//不允许串口接收数据
  }
  if (TI) {//发送中断
    TI = 0;
    if (SioBuffers.SioTXCount && (SioBuffers.SioTXCount <= 32)) {//允许串口发送数据
   SBUF = SioBuffers.SioTxBuff[32 - SioBuffers.SioTXCount];//串口显示
   SioBuffers.SioTXCount --;
 }
 else SioBuffers.SioTXCount = 0;//不允许串口发送数据
  }
}