[DemoCode下载] cc1101的详解及单片机程序

[code]#include <reg52.h>

#include <intrins.h>

#define  INT8U  unsigned char

#define  INT16U  unsigned int

#define  WRITE_BURST      0x40      //连续写入

#define  READ_SINGLE      0x80      //读

#define  READ_BURST       0xC0      //连续读

#define  BYTES_IN_RXFIFO     0x7F        //接收缓冲区的有效字节数

#define  CRC_OK              0x80       //CRC校验通过位标志

//*****************************************************************************************

sbit  GDO0 =P1^3;

sbit  GDO2 =P3^2;

sbit MISO =P1^6;

sbit MOSI =P1^5;

sbit SCK =P1^7;

sbit CSN =P1^2;

//*****************************************************************************************

sbit    LED2    =P3^4;

sbit    LED1    =P3^5;

sbit    KEY1    =P3^6;

sbit    KEY2    =P3^7;

//*****************************************************************************************

sbit led3=P2^3;

sbit led2=P2^2;

sbit led1=P2^1;

sbit led0=P2^0;

//*****************************************************************************************

//INT8U PaTabel[8] = {0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60};

INT8U PaTabel[8] = {0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0};//修改发射功率

//*****************************************************************************************

void SpiInit(void);

void CpuInit(void);

void RESET_CC1100(void);

void POWER_UP_RESET_CC1100(void);

void halSpiWriteReg(INT8U addr, INT8U value);

void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count);

void halSpiStrobe(INT8U strobe);

INT8U halSpiReadReg(INT8U addr);

void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count);

INT8U halSpiReadStatus(INT8U addr);

void halRfWriteRfSettings(void);

void halRfSendPacket(INT8U *txBuffer, INT8U size);

INT8U halRfReceivePacket(INT8U *rxBuffer, INT8U *length);

//*****************************************************************************************

// CC1100 STROBE, CONTROL AND STATUS REGSITER

#define CCxxx0_IOCFG2       0x00        // GDO2 output pin configuration

#define CCxxx0_IOCFG1       0x01        // GDO1 output pin configuration

#define CCxxx0_IOCFG0       0x02        // GDO0 output pin configuration

#define CCxxx0_FIFOTHR      0x03        // RX FIFO and TX FIFO thresholds

#define CCxxx0_SYNC1        0x04        // Sync word, high INT8U

#define CCxxx0_SYNC0        0x05        // Sync word, low INT8U

#define CCxxx0_PKTLEN       0x06        // Packet length

#define CCxxx0_PKTCTRL1     0x07        // Packet automation control

#define CCxxx0_PKTCTRL0     0x08        // Packet automation control

#define CCxxx0_ADDR         0x09        // Device address

#define CCxxx0_CHANNR       0x0A        // Channel number

#define CCxxx0_FSCTRL1      0x0B        // Frequency synthesizer control

#define CCxxx0_FSCTRL0      0x0C        // Frequency synthesizer control

#define CCxxx0_FREQ2        0x0D        // Frequency control word, high INT8U

#define CCxxx0_FREQ1        0x0E        // Frequency control word, middle INT8U

#define CCxxx0_FREQ0        0x0F        // Frequency control word, low INT8U

#define CCxxx0_MDMCFG4      0x10        // Modem configuration

#define CCxxx0_MDMCFG3      0x11        // Modem configuration

#define CCxxx0_MDMCFG2      0x12        // Modem configuration

#define CCxxx0_MDMCFG1      0x13        // Modem configuration

#define CCxxx0_MDMCFG0      0x14        // Modem configuration

#define CCxxx0_DEVIATN      0x15        // Modem deviation setting

#define CCxxx0_MCSM2        0x16        // Main Radio Control State Machine configuration

#define CCxxx0_MCSM1        0x17        // Main Radio Control State Machine configuration

#define CCxxx0_MCSM0        0x18        // Main Radio Control State Machine configuration

#define CCxxx0_FOCCFG       0x19        // Frequency Offset Compensation configuration

#define CCxxx0_BSCFG        0x1A        // Bit Synchronization configuration

#define CCxxx0_AGCCTRL2     0x1B        // AGC control

#define CCxxx0_AGCCTRL1     0x1C        // AGC control

#define CCxxx0_AGCCTRL0     0x1D        // AGC control

#define CCxxx0_WOREVT1      0x1E        // High INT8U Event 0 timeout

#define CCxxx0_WOREVT0      0x1F        // Low INT8U Event 0 timeout

#define CCxxx0_WORCTRL      0x20        // Wake On Radio control

#define CCxxx0_FREND1       0x21        // Front end RX configuration

#define CCxxx0_FREND0       0x22        // Front end TX configuration

#define CCxxx0_FSCAL3       0x23        // Frequency synthesizer calibration

#define CCxxx0_FSCAL2       0x24        // Frequency synthesizer calibration

#define CCxxx0_FSCAL1       0x25        // Frequency synthesizer calibration

#define CCxxx0_FSCAL0       0x26        // Frequency synthesizer calibration

#define CCxxx0_RCCTRL1      0x27        // RC oscillator configuration

#define CCxxx0_RCCTRL0      0x28        // RC oscillator configuration

#define CCxxx0_FSTEST       0x29        // Frequency synthesizer calibration control

#define CCxxx0_PTEST        0x2A        // Production test

#define CCxxx0_AGCTEST      0x2B        // AGC test

#define CCxxx0_TEST2        0x2C        // Various test settings

#define CCxxx0_TEST1        0x2D        // Various test settings

#define CCxxx0_TEST0        0x2E        // Various test settings

// Strobe commands

#define CCxxx0_SRES         0x30        // Reset chip.

#define CCxxx0_SFSTXON      0x31        // Enable and calibrate frequency synthesizer (if MCSM0.FS_AUTOCAL=1).

                                        // If in RX/TX: Go to a wait state where only the synthesizer is

                                        // running (for quick RX / TX turnaround).

#define CCxxx0_SXOFF        0x32        // Turn off crystal oscillator.

#define CCxxx0_SCAL         0x33        // Calibrate frequency synthesizer and turn it off

                                        // (enables quick start).

#define CCxxx0_SRX          0x34        // Enable RX. Perform calibration first if coming from IDLE and

                                        // MCSM0.FS_AUTOCAL=1.

#define CCxxx0_STX          0x35        // In IDLE state: Enable TX. Perform calibration first if

                                        // MCSM0.FS_AUTOCAL=1. If in RX state and CCA is enabled:

                                        // Only go to TX if channel is clear.

#define CCxxx0_SIDLE        0x36        // Exit RX / TX, turn off frequency synthesizer and exit

                                        // Wake-On-Radio mode if applicable.

#define CCxxx0_SAFC         0x37        // Perform AFC adjustment of the frequency synthesizer

#define CCxxx0_SWOR         0x38        // Start automatic RX polling sequence (Wake-on-Radio)

#define CCxxx0_SPWD         0x39        // Enter power down mode when CSn goes high.

#define CCxxx0_SFRX         0x3A        // Flush the RX FIFO buffer.

#define CCxxx0_SFTX         0x3B        // Flush the TX FIFO buffer.

#define CCxxx0_SWORRST      0x3C        // Reset real time clock.

#define CCxxx0_SNOP         0x3D        // No operation. May be used to pad strobe commands to two

                                        // INT8Us for simpler software.

#define CCxxx0_PARTNUM      0x30

#define CCxxx0_VERSION      0x31

#define CCxxx0_FREQEST      0x32

#define CCxxx0_LQI          0x33

#define CCxxx0_RSSI         0x34

#define CCxxx0_MARCSTATE    0x35

#define CCxxx0_WORTIME1     0x36

#define CCxxx0_WORTIME0     0x37

#define CCxxx0_PKTSTATUS    0x38

#define CCxxx0_VCO_VC_DAC   0x39

#define CCxxx0_TXBYTES      0x3A

#define CCxxx0_RXBYTES      0x3B

#define CCxxx0_PATABLE      0x3E

#define CCxxx0_TXFIFO       0x3F

#define CCxxx0_RXFIFO       0x3F

// RF_SETTINGS is a data structure which contains all relevant CCxxx0 registers

typedef struct S_RF_SETTINGS

{

    INT8U FSCTRL2;   //自已加的

    INT8U FSCTRL1;   // Frequency synthesizer control.

    INT8U FSCTRL0;   // Frequency synthesizer control.

    INT8U FREQ2;     // Frequency control word, high INT8U.

    INT8U FREQ1;     // Frequency control word, middle INT8U.

    INT8U FREQ0;     // Frequency control word, low INT8U.

    INT8U MDMCFG4;   // Modem configuration.

    INT8U MDMCFG3;   // Modem configuration.

    INT8U MDMCFG2;   // Modem configuration.

    INT8U MDMCFG1;   // Modem configuration.

    INT8U MDMCFG0;   // Modem configuration.

    INT8U CHANNR;    // Channel number.

    INT8U DEVIATN;   // Modem deviation setting (when FSK modulation is enabled).

    INT8U FREND1;    // Front end RX configuration.

    INT8U FREND0;    // Front end RX configuration.

    INT8U MCSM0;     // Main Radio Control State Machine configuration.

    INT8U FOCCFG;    // Frequency Offset Compensation Configuration.

    INT8U BSCFG;     // Bit synchronization Configuration.

    INT8U AGCCTRL2;  // AGC control.

    INT8U AGCCTRL1;  // AGC control.

    INT8U AGCCTRL0;  // AGC control.

    INT8U FSCAL3;    // Frequency synthesizer calibration.

    INT8U FSCAL2;    // Frequency synthesizer calibration.

    INT8U FSCAL1;    // Frequency synthesizer calibration.

    INT8U FSCAL0;    // Frequency synthesizer calibration.

    INT8U FSTEST;    // Frequency synthesizer calibration control

    INT8U TEST2;     // Various test settings.

    INT8U TEST1;     // Various test settings.

    INT8U TEST0;     // Various test settings.

    INT8U IOCFG2;    // GDO2 output pin configuration

    INT8U IOCFG0;    // GDO0 output pin configuration

    INT8U PKTCTRL1;  // Packet automation control.

    INT8U PKTCTRL0;  // Packet automation control.

    INT8U ADDR;      // Device address.

    INT8U PKTLEN;    // Packet length.

} RF_SETTINGS;

/////////////////////////////////////////////////////////////////

const RF_SETTINGS rfSettings =

{

0x00,

    0x08,   // FSCTRL1   Frequency synthesizer control.

    0x00,   // FSCTRL0   Frequency synthesizer control.

    0x10,   // FREQ2     Frequency control word, high byte.

    0xA7,   // FREQ1     Frequency control word, middle byte.

    0x62,   // FREQ0     Frequency control word, low byte.

   

0x5B,   // MDMCFG4   Modem configuration.

//0xf6, // MDMCFG4 chang by allen

    0xF8,   // MDMCFG3   Modem configuration.

//0x83, // MDMCFG3 chang by allen   data rate = 2.398K

    0x03,   // MDMCFG2   Modem configuration.

    0x22,   // MDMCFG1   Modem configuration.

    0xF8,   // MDMCFG0   Modem configuration.

    0x00,   // CHANNR    Channel number.

    0x47,   // DEVIATN   Modem deviation setting (when FSK modulation is enabled).

    0xB6,   // FREND1    Front end RX configuration.

    0x10,   // FREND0    Front end RX configuration.

    0x18,   // MCSM0     Main Radio Control State Machine configuration.

    0x1D,   // FOCCFG    Frequency Offset Compensation Configuration.

    0x1C,   // BSCFG     Bit synchronization Configuration.

    0xC7,   // AGCCTRL2  AGC control.

    0x00,   // AGCCTRL1  AGC control.

    0xB2,   // AGCCTRL0  AGC control.

    0xEA,   // FSCAL3    Frequency synthesizer calibration.

    0x2A,   // FSCAL2    Frequency synthesizer calibration.

    0x00,   // FSCAL1    Frequency synthesizer calibration.

    0x11,   // FSCAL0    Frequency synthesizer calibration.

    0x59,   // FSTEST    Frequency synthesizer calibration.

    0x81,   // TEST2     Various test settings.

    0x35,   // TEST1     Various test settings.

    0x09,   // TEST0     Various test settings.

    0x0B,   // IOCFG2    GDO2 output pin configuration.

    0x06,   // IOCFG0D   GDO0 output pin configuration. Refer to SmartRF?Studio User Manual for detailed pseudo register explanation.

    0x04,   // PKTCTRL1  Packet automation control.

    //0x05,   // PKTCTRL0  Packet automation control.

0x01, //PKTCTRL0  crc disable chang by allen at 09.12.24

    0x00,   // ADDR      Device address.

    0x0c    // PKTLEN    Packet length.

};

//*****************************************************************************************

//函数名：delay(unsigned int s)

//输入：时间

//输出：无

//功能描述：普通廷时,内部用

//*****************************************************************************************  

static void delay(unsigned int s)

{

unsigned int i;

for(i=0; i<s; i++);

for(i=0; i<s; i++);

}



void halWait(INT16U timeout) {

    do {

        _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

  _nop_();

    } while (--timeout);

}



void SpiInit(void)

{

CSN=0;

SCK=0;

CSN=1;

}

/*****************************************************************************************

//函数名：CpuInit()

//输入：无

//输出：无

//功能描述：SPI初始化程序

/*****************************************************************************************/

void CpuInit(void)

{

SpiInit();

delay(5000);

}



//*****************************************************************************************

//函数名：SpisendByte(INT8U dat)

//输入：发送的数据

//输出：无

//功能描述：SPI发送一个字节

//*****************************************************************************************

INT8U SpiTxRxByte(INT8U dat)

{

INT8U i,temp;

temp = 0;



SCK = 0;

for(i=0; i<8; i++)

{

  if(dat & 0x80)

  {

   MOSI = 1;

  }

  else MOSI = 0;

  dat <<= 1;

  SCK = 1;

  _nop_();

  _nop_();

  temp <<= 1;

  if(MISO)temp++;

  SCK = 0;

  _nop_();

  _nop_();

}

return temp;

}

//*****************************************************************************************

//函数名：void RESET_CC1100(void)

//输入：无

//输出：无

//功能描述：复位CC1100

//*****************************************************************************************

void RESET_CC1100(void)

{

CSN = 0;

while (MISO);

    SpiTxRxByte(CCxxx0_SRES);   //写入复位命令

while (MISO);

    CSN = 1;

}

//*****************************************************************************************

//函数名：void POWER_UP_RESET_CC1100(void)

//输入：无

//输出：无

//功能描述：上电复位CC1100

//*****************************************************************************************

void POWER_UP_RESET_CC1100(void)

{

CSN = 1;

halWait(1);

CSN = 0;

halWait(1);

CSN = 1;

halWait(41);

RESET_CC1100();     //复位CC1100

}

//*****************************************************************************************

//函数名：void halSpiWriteReg(INT8U addr, INT8U value)

//输入：地址和配置字

//输出：无

//功能描述：SPI写寄存器

//*****************************************************************************************

void halSpiWriteReg(INT8U addr, INT8U value)

{

    CSN = 0;

    while (MISO);

    SpiTxRxByte(addr);  //写地址

    SpiTxRxByte(value);  //写入配置

    CSN = 1;

}

//*****************************************************************************************

//函数名：void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count)

//输入：地址，写入缓冲区，写入个数

//输出：无

//功能描述：SPI连续写配置寄存器

//*****************************************************************************************

void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count)

{

    INT8U i, temp;

temp = addr | WRITE_BURST;

    CSN = 0;

    while (MISO);

    SpiTxRxByte(temp);

    for (i = 0; i < count; i++)

  {

        SpiTxRxByte(buffer);    }    CSN = 1;}//*****************************************************************************************//函数名：void halSpiStrobe(INT8U strobe)//输入：命令//输出：无//功能描述：SPI写命令//*****************************************************************************************void halSpiStrobe(INT8U strobe){    CSN = 0;    while (MISO);    SpiTxRxByte(strobe);  //写入命令    CSN = 1;} //*****************************************************************************************//函数名：INT8U halSpiReadReg(INT8U addr)//输入：地址//输出：该寄存器的配置字//功能描述：SPI读寄存器//*****************************************************************************************INT8U halSpiReadReg(INT8U addr){ INT8U temp, value;    temp = addr|READ_SINGLE;//读寄存器命令 CSN = 0; while (MISO); SpiTxRxByte(temp); value = SpiTxRxByte(0); CSN = 1; return value;}

//*****************************************************************************************//函数名：void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count)//输入：地址，读出数据后暂存的缓冲区，读出配置个数//输出：无//功能描述：SPI连续写配置寄存器//*****************************************************************************************void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count){    INT8U i,temp; temp = addr | READ_BURST;  //写入要读的配置寄存器地址和读命令    CSN = 0;    while (MISO); SpiTxRxByte(temp);      for (i = 0; i < count; i++) {        buffer = SpiTxRxByte(0);    }    CSN = 1;}

//*****************************************************************************************//函数名：INT8U halSpiReadReg(INT8U addr)//输入：地址//输出：该状态寄存器当前值//功能描述：SPI读状态寄存器//*****************************************************************************************INT8U halSpiReadStatus(INT8U addr){    INT8U value,temp; temp = addr | READ_BURST;  //写入要读的状态寄存器的地址同时写入读命令    CSN = 0;    while (MISO);    SpiTxRxByte(temp); value = SpiTxRxByte(0); CSN = 1; return value;}

//*****************************************************************************************

//函数名：void halRfWriteRfSettings(RF_SETTINGS *pRfSettings)

//输入：无

//输出：无

//功能描述：配置CC1100的寄存器

//*****************************************************************************************

void halRfWriteRfSettings(void)

{

 halSpiWriteReg(CCxxx0_FSCTRL0,  rfSettings.FSCTRL2);//自已加的

    // Write register settings

    halSpiWriteReg(CCxxx0_FSCTRL1,  rfSettings.FSCTRL1);

    halSpiWriteReg(CCxxx0_FSCTRL0,  rfSettings.FSCTRL0);

    halSpiWriteReg(CCxxx0_FREQ2,    rfSettings.FREQ2);

    halSpiWriteReg(CCxxx0_FREQ1,    rfSettings.FREQ1);

    halSpiWriteReg(CCxxx0_FREQ0,    rfSettings.FREQ0);

    halSpiWriteReg(CCxxx0_MDMCFG4,  rfSettings.MDMCFG4);

    halSpiWriteReg(CCxxx0_MDMCFG3,  rfSettings.MDMCFG3);

    halSpiWriteReg(CCxxx0_MDMCFG2,  rfSettings.MDMCFG2);

    halSpiWriteReg(CCxxx0_MDMCFG1,  rfSettings.MDMCFG1);

    halSpiWriteReg(CCxxx0_MDMCFG0,  rfSettings.MDMCFG0);

    halSpiWriteReg(CCxxx0_CHANNR,   rfSettings.CHANNR);

    halSpiWriteReg(CCxxx0_DEVIATN,  rfSettings.DEVIATN);

    halSpiWriteReg(CCxxx0_FREND1,   rfSettings.FREND1);

    halSpiWriteReg(CCxxx0_FREND0,   rfSettings.FREND0);

    halSpiWriteReg(CCxxx0_MCSM0 ,   rfSettings.MCSM0 );

    halSpiWriteReg(CCxxx0_FOCCFG,   rfSettings.FOCCFG);

    halSpiWriteReg(CCxxx0_BSCFG,    rfSettings.BSCFG);

    halSpiWriteReg(CCxxx0_AGCCTRL2, rfSettings.AGCCTRL2);

 halSpiWriteReg(CCxxx0_AGCCTRL1, rfSettings.AGCCTRL1);

    halSpiWriteReg(CCxxx0_AGCCTRL0, rfSettings.AGCCTRL0);

    halSpiWriteReg(CCxxx0_FSCAL3,   rfSettings.FSCAL3);

 halSpiWriteReg(CCxxx0_FSCAL2,   rfSettings.FSCAL2);

 halSpiWriteReg(CCxxx0_FSCAL1,   rfSettings.FSCAL1);

    halSpiWriteReg(CCxxx0_FSCAL0,   rfSettings.FSCAL0);

    halSpiWriteReg(CCxxx0_FSTEST,   rfSettings.FSTEST);

    halSpiWriteReg(CCxxx0_TEST2,    rfSettings.TEST2);

    halSpiWriteReg(CCxxx0_TEST1,    rfSettings.TEST1);

    halSpiWriteReg(CCxxx0_TEST0,    rfSettings.TEST0);

    halSpiWriteReg(CCxxx0_IOCFG2,   rfSettings.IOCFG2);

    halSpiWriteReg(CCxxx0_IOCFG0,   rfSettings.IOCFG0);   

    halSpiWriteReg(CCxxx0_PKTCTRL1, rfSettings.PKTCTRL1);

    halSpiWriteReg(CCxxx0_PKTCTRL0, rfSettings.PKTCTRL0);

    halSpiWriteReg(CCxxx0_ADDR,     rfSettings.ADDR);

    halSpiWriteReg(CCxxx0_PKTLEN,   rfSettings.PKTLEN);

}

//*****************************************************************************************

//函数名：void halRfSendPacket(INT8U *txBuffer, INT8U size)

//输入：发送的缓冲区，发送数据个数

//输出：无

//功能描述：CC1100发送一组数据

//*****************************************************************************************

void halRfSendPacket(INT8U *txBuffer, INT8U size)

{

 halSpiWriteReg(CCxxx0_TXFIFO, size);

    halSpiWriteBurstReg(CCxxx0_TXFIFO, txBuffer, size); //写入要发送的数据

    halSpiStrobe(CCxxx0_STX);  //进入发送模式发送数据

    // Wait for GDO0 to be set -> sync transmitted

    while (!GDO0);

    // Wait for GDO0 to be cleared -> end of packet

    while (GDO0);

 halSpiStrobe(CCxxx0_SFTX);

 delay(20);

}



void setRxMode(void)

{

    halSpiStrobe(CCxxx0_SRX);  //进入接收状态

}

/*

// Bit masks corresponding to STATE[2:0] in the status byte returned on MISO

#define CCxx00_STATE_BM                 0x70

#define CCxx00_FIFO_BYTES_AVAILABLE_BM  0x0F

#define CCxx00_STATE_TX_BM              0x20

#define CCxx00_STATE_TX_UNDERFLOW_BM    0x70

#define CCxx00_STATE_RX_BM              0x10

#define CCxx00_STATE_RX_OVERFLOW_BM     0x60

#define CCxx00_STATE_IDLE_BM            0x00

static INT8U RfGetRxStatus(void)

{

 INT8U temp, spiRxStatus1,spiRxStatus2;

 INT8U i=4;// 循环测试次数

    temp = CCxxx0_SNOP|READ_SINGLE;//读寄存器命令

 CSN = 0;

 while (MISO);

 SpiTxRxByte(temp);

 spiRxStatus1 = SpiTxRxByte(0);

 do

 {

  SpiTxRxByte(temp);

  spiRxStatus2 = SpiTxRxByte(0);

  if(spiRxStatus1 == spiRxStatus2)

  {

   if( (spiRxStatus1 & CCxx00_STATE_BM) == CCxx00_STATE_RX_OVERFLOW_BM)

   {

               halSpiStrobe(CCxxx0_SFRX);

      return 0;

   }

      return 1;

  }

   spiRxStatus1=spiRxStatus2;

 }

 while(i--);

 CSN = 1;

    return 0; 

}

 */

INT8U halRfReceivePacket(INT8U *rxBuffer, INT8U *length)

{

    INT8U status[2];

    INT8U packetLength;

 INT8U i=(*length)*4;  // 具体多少要根据datarate和length来决定

    halSpiStrobe(CCxxx0_SRX);  //进入接收状态

 //delay(5);

    //while (!GDO1);

    //while (GDO1);

 delay(2);

 while (GDO0)

 {

  delay(2);

  --i;

  if(i<1)

     return 0;     

 }

    if ((halSpiReadStatus(CCxxx0_RXBYTES) & BYTES_IN_RXFIFO)) //如果接的字节数不为0

 {

        //LED2 = 0;

  packetLength = halSpiReadReg(CCxxx0_RXFIFO);//读出第一个字节，此字节为该帧数据长度

        //if (packetLength <= *length)   //如果所要的有效数据长度小于等于接收到的数据包的长度

  if(packetLength == 0x08)

  {

            //halSpiReadBurstReg(CCxxx0_RXFIFO, rxBuffer, packetLength); //读出所有接收到的数据

   halSpiReadBurstReg(CCxxx0_RXFIFO, rxBuffer, 8); //读出所有接收到的数据

            *length = packetLength;    //把接收数据长度的修改为当前数据的长度

       

            // Read the 2 appended status bytes (status[0] = RSSI, status[1] = LQI)

            //halSpiReadBurstReg(CCxxx0_RXFIFO, status, 2);  //读出CRC校验位

   halSpiStrobe(CCxxx0_SFRX);  //清洗接收缓冲区

  // delay(2);

  // halSpiStrobe(CCxxx0_SRX);  //进入接收状态

  // delay(20);

   //delay(200);

   return 1;

            //return (status[1] & CRC_OK);   //如果校验成功返回接收成功

        }

   else

  {

            *length = packetLength;

            halSpiStrobe(CCxxx0_SFRX);  //清洗接收缓冲区

  // delay(2);

  // halSpiStrobe(CCxxx0_SRX);  //进入接收状态

  // delay(20);

  // LED2 = 1;

            return 0;

        }

    }

  return 0;

}



void main(void)

{

 unsigned char key1_flag = 0;

 bit key2_flag = 0;

 unsigned int key1_scan_cnt = 400;

 unsigned int key2_scan_cnt = 300;

 INT8U i = 0;

 INT8U leng =0;

 INT8U tf =0;

 INT8U TxBuf[8]={1,2,3,4,5,6,7,8};  // 8字节, 如果需要更长的数据包,请正确设置

 INT8U RxBuf[8]={0}; 

 CpuInit();

 POWER_UP_RESET_CC1100();

 halRfWriteRfSettings();

 halSpiWriteBurstReg(CCxxx0_PATABLE, PaTabel, 8);

 //halSpiStrobe(CCxxx0_SRX);  //进入接收状态

 //setRxMode();

 while(1)

 {

     //setRxMode();

  delay(10);

     if(KEY1 == 0)

    {

   key1_scan_cnt--;

   if(!key1_scan_cnt)

   {   

    key1_scan_cnt = 300;

    if(key1_flag == 0)//判断按键是否第1次按下

    {

     key1_flag = 1;//按键第1次按下标志位 

    }

   }

     }

  else

  {

   key1_scan_cnt = 300;

   if(key1_flag == 1)//判断是否第一次按键动作松开

   {

    led1 = 0;

    led0 = 0;

    key1_flag = 2;

    key1_scan_cnt = 3;

    TxBuf[0] = 0x77;//第1个字节为0x77的数据帧，接收方收到后不需要返回应答

    while(1)

    {        

     halRfSendPacket(TxBuf,8); // Transmit Tx buffer data

     delay(100);    

     if(KEY1 == 0)//检测按键是否第2次按下

     {

      key1_scan_cnt--;

      if(!key1_scan_cnt)

      {

       key1_flag = 3;//按键第2次按下

       key1_scan_cnt = 300;

       led1 = 1;

       led0 = 1;

       break;//当按键再次按下时退出长发状态

      }

     }

     else//没有第2次的按键动作

     {

      key1_scan_cnt = 3;

     }

    }

   }

   else if(key1_flag == 3)//是否为第2次的按键动作松开

   {

    key1_flag = 0;

   }

  }

 

     if(KEY2 == 0)

    {

   key2_scan_cnt--;

   if(!key2_scan_cnt)//确认按键正常按下

   {   

    key2_scan_cnt = 300;    

    key2_flag = 1;//按键第1次按下标志位   

   }

     }

  else

  {

   key2_scan_cnt = 300;

   if(key2_flag)//按键弹起

   {

    LED1 = 0;

    key2_flag = 0;

    delay(1000);

    TxBuf[0] = 0x88;        

    halRfSendPacket(TxBuf,8);// Transmit Tx buffer data    

    LED1 = 1;   

   }

    }

  leng =8; // 预计接受8 bytes

     if(halRfReceivePacket(RxBuf,&leng))

 // if(!GDO0)

  {      

  // leng =8; // 预计接受8 bytes

  // if(halRfReceivePacket(RxBuf,&leng))

   {

    if(RxBuf[0] == 0x77)//接收到的数据不需要返回应答

    {

     LED2 = ~LED2;

    }

    else if(RxBuf[0] == 0x88)//判断接收到的数据是否需要返回应答

    {

     LED2 = 0;//接收数据正确，开接收指示灯

     LED1 = 0;//准备发送应答，开发送指示灯

     delay(1000);

     TxBuf[0] = 0x99;

     halRfSendPacket(TxBuf,8); // Transmit Tx buffer data  返回应答

     LED2 = 1;

     LED1 = 1;

    }

    else if(RxBuf[0] == 0x99)//应答数据

    {

     LED2 = 0;

     delay(1000);

     LED2 = 1;

    }

   }

  }

 } 

}