基于51单片机驱动SI4432无线模块收发C语言程序

1、基于51单片机驱动SI4432无线模块收发C语言程序#include #include #include #include /- RF4432配置口定义-/sbitRF4432_PAC=P2A4;/收发模式切换控制端sbitRF4432_SDO=P3A5;/SPI数据输出sbitRF4432_SDI=P3A4;/SPI数据输入sbitRF4432_SCLK=P3A7;/SPI时钟输入端口sbitRF4432_SEL=P3A3;/SPI片选sbitRF4432_IRQ=P3A2;/SI4432工作状态指示端口sbitKEY=P3A6;/BLT53A上电控制端sbitLED_GREEN=P2A1;

2、sbitP15=P1A5;/-射频芯片相关定义-#define RF4432_TxRxBuf_Len 32/定义RF4432数据包长度char RF4432_TxRxBufRF4432_TxRxBuf_Len;Packet30=9,20,30,21,15,58,56,69,25,23,12,25,56,22,23,24;/Transmit packetLength=4;Data_Buf10;Data_Len;typedef enum _RF_ENUM unsigned charunsigned charunsigned charunsigned charRF_OK = 0 x00,/funct

3、ion response parametersRF_ERROR_TIMING = 0 x01,RF_ERROR_PARAMETER = 0 x02,RF_PACKET_RECEIVED = 0 x03,RF_NO_PACKET = 0 x04,RF_CRC_ERROR = 0 x05, RF_ENUM;/-RF4432配置存放器地址-#define DEVICE_TYPE 0 x00#define EVICE_VERSION 0 x01 /版本号#define DEVICE_STATUS 0 x02 /设备状态#define INTERRUPT_STATUS_1 0 x03#define IN

4、TERRUPT_STATUS_2 0 x04#define INTERRUPT_ENABLE_1 0 x05#define INTERRUPT_ENABLE_2 0 x06#define OPERATING_FUNCTION_CONTROL_1 0 x07/#define OPERATING_FUNCTION_CONTROL_2 0 x08/#define CRYSTAL_OSCILLATOR_LOAD_CAPACITANCE 0 x09/#define MICROCONTROLLER_OUTPUT_CLOCK 0 x0A#define GPIO0_CONFIGURATION 0 x0B /G

5、PIO0 #define GPIO1CONFIGURATION 0 x0C#define GPIO2_CONFIGURATION 0 x0D#define IO_PORT_CONFIGURATION 0 x0E#define ADC_CONFIGURATION 0 x0F#define ADC_SENSOR_AMPLIFIER_OFFSET 0 x10#define ADC_VALUE 0 x11#define TEMPERATURE_SENSOR_CONTROL 0 x12/温度传感器校准#define TEMPERATURE_VALUE_OFFSET 0 x13#define WAKE_U

6、P_TIMER_PERIOD_1 0 x14#define WAKE_UP_TIMER_PERIOD_2 0 x15工作模式和功能控制1工作模式和功能控制2晶振负载电容设置功能设置存放器见英文文档第105页#define WAKE_UP_TIMER_PERIOD_3 0 x16#define WAKE_UP_TIMER_VALUE_1 0 x17#define WAKE_UP_TIMER_VALUE_2 0 x18#define LOW_DUTY_CYCLE_MODE_DURATION 0 x19#define LOW_BATTERY_DETECTOR_THRESHOLD 0 x1A /低压检

7、测阈值存放器#define BATTERY_VOLTAGE_LEVEL 0 x1B#define IF_FILTER_BANDWIDTH 0 x1C /中频滤波器带宽存放器#define AFC_LOOP_GEARSHIFT_OVERRIDE 0 x1D#define AFC_TIMING_CONTROL 0 x1E#define CLOCK_RECOVERY_GEARSHIFT_OVERRIDE 0 x1F#define CLOCK_RECOVERY_OVERSAMPLING_RATIO 0 x20#define CLOCK_RECOVERY_OFFSET_2 0 x21#define CL

8、OCK_RECOVERY_OFFSET_1 0 x22#define CLOCK_RECOVERY_OFFSET_0 0 x23#define CLOCK_RECOVERY_TIMING_LOOP_GAIN_1 0 x24#define CLOCK_RECOVERY_TIMING_LOOP_GAIN_0 0 x25#define RECEIVED_SIGNAL_STRENGTH_INDICATOR 0 x26#define RSSI_THRESHOLD_FOR_CLEAR_CHANNEL_INDICATOR 0 x27#define ANTENNA_DIVERSITY_REGISTER_1 0

9、 x28#define ANTENNA_DIVERSITY_REGISTER_2 0 x29#define DATA_ACCESS_CONTROL 0 x30#define EZMAC_STATUS 0 x31#define HEADER_CONTROL_1 0 x32 /Header起始码设置#define HEADER_CONTROL_2 0 x33#define PREAMBLE_LENGTH 0 x34/前导码长度#define PREAMBLE_DETECTION_CONTROL 0 x35/前导码检测设置#define SYNC_WORD_3 0 x36/同步字节#define S

10、YNC_W0RD_2 0 x37#define SYNC_WORD_1 0 x38#define SYNC_WORD_0 0 x39#define TRANSMIT_HEADER_3 0 x3A#define TRANSMIT_HEADER_2 0 x3B#define TRANSMIT_HEADER_1 0 x3C#define TRANSMIT_HEADER_O 0 x3D#define TRANSMIT_PACKET_LENGTH 0 x3E /发送数据包长度,#define CHECK_HEADER_3 0 x3F#define CHECK_HEADER_2 0 x40#define

11、CHECK_HEADER_1 0 x41#define CHECK_HEADER_0 0 x42#define HEADER_ENABLE_3 0 x43#define HEADER_ENABLE_2 0 x44#define HEADER_ENABLE_1 0 x45#define HEADER_ENABLE_O 0 x46#define RECEIVED_HEADER_3 0 x47#define RECEIVED_HEADER_2 0 x48#define RECEIVED_HEADER_1 0 x49#define RECEIVED_HEADER_O 0 x4A#define RECE

12、IVED_PACKET_LENGTH 0 x4B /接收数据包长度,#define ANALOG_TEST_BUS 0 x50#define DIGITAL_TEST_BUS_ENSCTEST_ 0 x51#define TX_RAMP_CONTROL 0 x52#define PLL_TUNE_TIME 0 x53/锁相环切换时间#define CALIBRATION_CONTROL 0 x55#define MODEM_TEST 0 x56#define CHARGEPUMP_TEST 0 x57#define CHARGEPUMP_CURRENT_TRIMMING_OVERRIDE0 x

13、58#define DIVIDER CURRENT TRIMMING0 x59详细请看P125 M详细请看P134 M#define MODULATIONMODECONTROL2 #defineFREQUENCY_DEVIATION 0 x72#define FREQUENCYOFFSET1 0 x73#define VCO_CURRENT_TRIMMING#define VCOCALIBRATIONOVERRIDE0 x5A0 x5B#define SYNTHESIZERTEST0 x5C#define BLOCKENABLEOVERRIDE10 x5D#define BLOCKENABLE

14、OVERRIDE20 x5E#define BLOCKENABLEOVERRIDE30 x5F#define CHANNEL_FILTER_COEFFICIENT_ADDRESS#define CHANNELFILTERCOEFFICIENTVALUE0 x600 x61#define CRYSTALOSCILLATORCONTROLTEST0 x62#define RCOSCILLATORCOARSECALIBRATIONOVERRIDE0 x63#define RCOSCILLATORFINECALIBRATIONOVERRIDE0 x64#define LDOCONTROLOVERRID

15、EENSPOR0 x65#define LDOLEVELSETTING0 x66#define DELTASIGMAADCTUNING10 x67#define DELTASIGMA_ADC_TUNING_2#define AGCOVERRIDE10 x680 x69#define AGCOVERRIDE2 0 x6A#define GFSKFIRFILTERCOEFFICIENTADDRESS0 x6B#define GFSKFIRFILTERCOEFFICIENT_VALUE发射功率设置，详细请见P153/#define TXPOWER 0 x6D /#define TX_DATA_RAT

16、E_1 0 x6E#define TXDATARATE0 0 x6F#define MODULATIONMODECONTROL10 x700 x6C数据发送波特率设置存放器1数据发送波特率设置存放器0调制方式控制，详细请见P155/#define FREQUENCY_OFFSET_2 0 x74#define FREQUENCYBANDSELECT 0 x750 x71/#define NOMINAL_CARRIER_FREQUENCY_1#define NOMINALCARRIERFREQUENCY00 x760 x77频段选择，详细请见P157/基准载波频率#define FREQUENC

17、Y_HOPPING_CHANNEL_SELECT 0 x79/跳频频道选择，详细请见P158#define FREQUENCY_HOPPING_STEP_SIZE 0 x7A /跳频频道间隔#define TX_FIFO_CONTROL_1 0 x7C#define TX_FIFO_CONTROL_2 0 x7D#define RX_FIFO_CONTROL 0 x7E#define FIFO_ACCESS 0 x7F /FIFO读写方式设置，/-RF4432控制指令-#define RR0 x00#define WR0 x80/-延时-void delay_10us(char n)int i

18、;while(n-)for(i=0;i5;i+);void delay_ms(int num)int x，y;for(y=0;ynum;y+)for(x = 0;x 500;x) x+;/-SPI单字节读取函数unsigned char SPI_Read(void)unsigned char i,rxdata; rxdata =0 x00;for (i = 0;i v 8;i+) rxdata = rxdata1:RF4432_SCLK=1;RF4432_SDO=1;if (RF4432_SDO=1)rxdata |= 0 x01;elserxdata &= -0 x01;delay_

19、10us ；RF4432_SCLK=0;delay_10us ；return rxdata;/-SPIvoid SPI_Write( unsigned charunsigned char i;for (i = 0;i v 8;i+)if (txdata&0 x80)/总是发送最高位/单字节写入函数txdata)读取最高位，保存至最末尾，通过左移位完成整个字节RF4432_SDI=1; else (RF4432_SDI=0;RF4432_SCLK=1;txdata = txdata1;RF4432_SCLK=0;/-RF4432存放器读取函数 -void RF4432_ReadReg(

20、unsigned char addr, unsigned char *RegisterData)(RF4432_SEL=0;SPI_Write(addr|RR);*RegisterData = SPI_Read();RF4432_SEL=1;/-RF4432存放器写入函数-void RF4432_WriteReg( unsigned char addr, unsigned char value)(RF4432_SEL=0;SPI_Write(addr|WR);SPI_Write(value);RF4432_SEL=1;/-RF4432存放器读取函数 -void RF4432_ReadBures

21、tReg( unsigned char addr, unsigned char *p, unsigned char count) (unsigned char i;RF4432_SEL=0;SPI_Write(addr|RR);for(i=0;icount;i+)pi = SPI_Read();RF4432_SEL=1;/-RF4432void RF4432_Init(void)unsigned char RegisterData; /unsigned int i,j;delay_ms(20);delay_ms(20);delay_ms(20);delay_ms(20);delay_ms(20

22、);delay_ms(20);射频芯片初始化函数-RF4432_ReadReg(0 x03,&RegisterData);RF4432_ReadReg(0 x04,&RegisterData);/read the Interrupt Status1 register/read the Interrupt Status2 register/SW resetRF4432_WriteReg(0 x07, 0 x80);/write 0 x80 to the Operating & Function Control1 register/wait for chip ready i

23、nterrupt from the radio (while the nIRQ pin is high)while(RF4432_IRQ);/read interrupt status registers to clear the interrupt flags and release NIRQ pinRF4432_ReadReg(0 x03, &RegisterData);RF4432_ReadReg(0 x04, &RegisterData);/*set the physical parameters*/set the center frequency to 434 MHz

24、 RF4432_WriteReg(0 x75, 0 x57);RF4432_WriteReg(0 x76, 0 x19);RF4432_WriteReg(0 x77, 0 x00);/write 0 x4E to the TXDataRate 1 register/write 0 xA5 to the TXDataRate 0 register/write 0 x2C to the Modulation Mode Control 1 register/VCO/write 0 x1F to the TX Power registeraccording to the exel calculator

25、(parameters:4.8 kbps, deviation:/write 0 x1E to the IF Filter Bandwidth register0 xE2); /write 0 xD0 to the Clock Recovery Oversampling Ratio register/write 0 x00 to the Clock Recovery Offset 2 register/write 0 x9D to the Clock Recovery Offset 1 register/write 0 x49 to the Clock Recovery Offset 0 re

26、gister0 x00);/write0 x00totheClockRecoveryTimingLoop Gain1 register0 x04);/write0 x24totheClockRecoveryTimingLoop Gain0 register/enable afc/write 0 x40 to the AFC Loop Gearshift Override register/write 0 x48 to the Frequency Deviation register/write 0 x75 to the Frequency Band Select register/write

27、0 xBB to the Nominal Carrier Frequency1 register/write 0 x80 to the Nominal Carrier Frequency。register/set the desired TX data rate (9.6kbps)RF4432_WriteReg(0 x6E, 0 x13);RF4432_WriteReg(0 x6F, 0 xA9);RF4432_WriteReg(0 x70, 0 x2C);RF4432_WriteReg(0 x58, 0 x80);/set the TX power to MAXRF4432_WriteReg

28、(0 x6D, 0 x1F);/*set the modem parametersfilter BW: 102.2 kHz*/50 kHz, channelRF4432_WriteReg(0 x1C, 0 xAD);RF4432_WriteReg(0 x20,RF4432_WriteReg(0 x21,0 x80);RF4432_WriteReg(0 x22, 0 x1A);RF4432_WriteReg(0 x23, 0 x37);RF4432_WriteReg(0 x24,RF4432_WriteReg(0 x25,RF4432_WriteReg(0 x1D, 0 x44);RF4432_

29、WriteReg(0 x1E, 0 x0A);RF4432_WriteReg(0 x2A, 0 x2C);RF4432_WriteReg(0 x1F, 0 x03);RF4432_WriteReg(0 x69, 0 x60);RF4432_WriteReg(0 x72, 0 x70);/set the preamble length to 10bytes if the antenna diversity is used and set to 5bytes if not RF4432_WriteReg(0 x34, 0 xCF);/write 0 x0C to the Preamble Leng

30、th register/set preamble detection threshold to 20bits RF4432_WriteReg(0 x35, 0 x20);/write 0 x2A to the Preamble Detection Controlregister/Disable header bytes; set variable packet length (the length of the payload is defined by the /received packet length field ofthe packet); set the synch word to

31、 two bytes long RF4432_WriteReg(0 x33, 0 x02);/Set the sync word pattern to 0 x2DD4RF4432_WriteReg(0 x36, 0 x2D); RF4432_WriteReg(0 x37,0 xD4);/set Crystal Oscillator Load Capacitance register RF4432_WriteReg(0 x09, 0 x7F);/write 0 xD7 to the Crystal Oscillator LoadCapacitance registerRF4432_WriteRe

32、g(0 x73,0 x00);RF4432_WriteReg(0 x74,0 x00);/write 0 x02 to the Header Control2 register/write 0 x2D to the Sync Word 3 register/write 0 xD4 to the Sync Word 2 register/enable the TX & RX packet handler and CRC-16 (IBM) checkRF4432_WriteReg(0 x30, 0 x8D);/Disable the receive header filters RF443

33、2_WriteReg(0 x32, 0 x00 );/enable FIFO mode and GFSK modulation RF4432_WriteReg(0 x71, 0 x2B);/*set the GPIOs according the testcard type*/ RF4432_WriteReg(0 x0B,0 x0A); RF4432_WriteReg(0 x0C, 0 x0A);/set the AGCRF4432_WriteReg(0 x69, 0 x35);/set ADC reference voltage to 0.9V RF4432_WriteReg(0 x68,

34、0 x07);/write 0 x8D to the Data Access Control register/write 0 x00 to the Header Control1 register/write 0 x63 to the Modulation Mode Control 2 register/write 0 x12 to the GPIO0 Configuration(set the TX state)/write 0 x15 to the GPIO1 Configuration(set the RX state)/write 0 x0B to the AGC Override

35、2 register/write 0 x04 to the Deltasigma ADC Tuning 2 register/TxFIFOReset();R F4432_Write Reg (0 x08, 0 x01);R F4432_Write Reg (0 x08, 0 x00);/RxFIFOReset();R F4432_Write Reg (0 x08, 0 x02);R F4432_Write Reg (0 x08, 0 x00);/- RF4432void RF4432_SetRxMode(void)unsigned char RegisterData;RF4432_WriteR

36、eg(0 x0E, 0 x02);/enable the packet valid interruptRF4432_WriteReg(0 x05, OxFF);R F4432_Write Reg (0 x06, 0 x00);RF4432_ReadReg(0 x03, &RegisterData);RF4432_ReadReg(0 x04, &RegisterData); /enablereceiver chainR F4432_Write Reg (0 x07, 0 x05);/-RF4432unsigned char RF4432_RxPacket(void)unsigne

37、d char temp;RF4432_IRQ=1;if(!RF4432_IRQ)RF4432_ReadReg(INTERRUPT_STATUS_1,&temp);设置接收模式函数/Rx_EN;数据包接收函数if(temp&0 x02)return 1;return 0;void RFIdle(void)unsigned char RegisterData;RF4432_WriteReg(0 x07, 0 x01);/diasble all ITsR F4432_Write Reg (0 x05, 0 x00);R F4432_Write Reg (0 x06, 0 x00);R

38、F4432_ReadReg(0 x03, &RegisterData);RF4432_ReadReg(0 x04, &RegisterData);void RFTransmit( unsigned char * packet, unsigned char unsigned chartemp;unsigned charRegisterData;RF4432_WriteReg(0 x0E, 0 x01);/Tx_EN;RF4432_WriteReg(0 x3e, length);for(temp=0;templength;temp+)RF4432_WriteReg(0 x7f,pa

39、ckettemp);/enable the wanted ITsR F4432_Write Reg (0 x05, 0 x04);R F4432_Write Reg (0 x06, 0 x00);length)RF4432_ReadReg(0 x03, &RegisterData);RF4432_ReadReg(0 x04, &RegisterData);/enable transmitterRF4432_WriteReg(0 x07, 0 x09);while(RF4432_IRQ);/while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_12);RF4432_ReadReg(0 x03, &RegisterData);RF4432_ReadReg(0 x04, &RegisterData);RF_ENUM