NRF24l01一对一双向通信程序(已调通)

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1、以卜程序参考多个网络程序后，经调试并且己经调通，口J以稍加修改即可使用 经测试可实现双向通信本程序实现功能：从52单片机串丨I读入数据后通过24L01发送/24L01 发送#include #include tvpedef unsigned chai uchar;tvpedef unsigned chai uint;=P1A4;=P1A3;=P1A2;=P1AO;=P1A1;=P1A5;SCKCECSNIRQ*2sRF24L01 端定义 * * sbit MISO sbit MOSI sbit sbit sbit sbit*按键 * */sbit KEY1=P3A6;/sbit KEY2=P3

2、A7;* 数码管位选* *led3=P2A0;led2=P2Al;ledl=P2A2;ledO=P2A3;/sbit/sbit/sbit /sbit*峰明器 * */sbit BELL=P3A4;* 数码管 09 编码 * * */ucliar seg10=0xC0,0xCE0xA4,0xB0.0x99.0x92.0x82.0xF8,0x80,0x90;码* *2sRF24L0 * *#define TX_ADR_WIDTH 5/ 5 umts TX address width#define RX_ADR_WIDTH 5/ 5 umts RX address width/ 20 uiiits

3、TX payload/ 20 uiiits TX payload#define READ_REG0x00/读寄存器指令#define TX_PLOAD_WIDTH 10#define RX_PLOAD_WEDTH 10 umt const TX_ADDRESSTX_ADR_WIDTH= 0x34,0x43,0x 10.Ox 10.0x01; 本地地址 umt const RX_ADDRESSRX_ADR_WIDTH= 0x34.0x43,0x 10,0x 10,0x01; 接收地址 *NRF24L()1 寄存器指令 * *define WRITE_REG0x20/写寄存器指令define RD

4、_RX_PLOAD0x61/读取接收数据指令#define WR_TX_PLOADOxAO/写待发数据指令define FLUSH.TXOxEl/冲洗发送FIFO指令define FLUSH_RX0xE2/冲洗接收FIFO指令#define REUSE_TX_PL0xE3/定义重复装载数据指令frdefine NOPOxFF/保留*define CONFIGdefine EN_AA0x00 配置收发状态，CRC校验模式以及收发状态响应方式0x01 /自动应答功能设置frdefine EN_RXADDR #define SETUP_AW define SETUP_RETR define RF_C

5、H define RF_SETUP frdefine STATUS define OBSERVE.TX frdefine CDdefine RX_ADDR_P0 define RX_ADDR_P1 define RX_ADDR_P2 define RX_ADDR_P3 define RX_ADDR_P斗 define RX_ADDR_P5 define TX_ADDR 彳define RX_PW_P0 彳define RX_PW.P1 彳define RX_PW_P2 彳define RX_PW_P3 彳define RX_PW_P4 彳define RX_PW_P5 define FIFO.

6、STATUS0x02 可用信道设置0x03 /收发地址宽度设置0x04 /自动重发功能设置0x05 /工作频率设置0x06 /发射速率、功耗功能设置0x07 /状态寄存器0x08 /发送监测功能0x09 /地址检测OxOA /频道0接收数据地址OxOB /频道1接收数据地址0x0C /频道2接收数据地址0x0D /频道3接收数据地址OxOE /频道4接收数据地址OxOF /频道5接收数据地址0x10 /发送地址寄存器0x11 接收频道0接收数据长度0x12 /接收频道0接收数据长度0x13 接收频道0接收数据长度0x14 /接收频道0接收数据长度0x15 接收频道0接收数据长度0x16 接收频

7、道0接收数据长度0x17 /FIFO栈入栈岀状态寄存器设置*void Delay(unsigned mt s);void inerDelay_us(unsigned char n);void init_NRF24L01 (void);umt SPI_RW(umt uchar);uchai SPI_Read(uchai- leg);void SetRX_Mode(void);umt SPI_RW_Reg(uchai leg. uchai value);umt SPI_Read_Buf(uchar reg, uchar *pBuf. uchai uchars); umt SPI_Wiite_Buf

8、(uchar reg, uchar *pBuf, ucliar uchai s); unsigned char 11RF24L0l_RxPacket(unsigned char* rx_buf); void 11RF24L0 l_TxPacket(unsigned char * tx_buf):*长延 H 寸 * void Delay(unsigned mt s)unsigned mt i; fbr(i=O; is; i+); fbr(i=O; i0;n)_nop_()；*NRF74I 01void init_NRF24L01 (void) iiierDelay_us(l 00);CE=0;/

9、 cliip enableCSN=1;/ Spi disableSCK=0; /SPI_Wnte_Ei】f(WRITE_REG + TX_ADDR, TX.ADDRESS. TX_ADR_WIDTH);/写本地地址SPI_Wnte_Ei】f(WRITE_REG + RX_ADDR_P0. RX_ADDRESS, RX_ADR_WIDTH);/写接收端地址SPI_RW_Reg(VRITE_REG + EN_AA, 0x01);/频道0自动 ACK应答允许SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);/允许接收地址只有频道0,如杲需要多频道可以参考Page21SP

10、I_RW_Reg(WRITE_REG + RF_CH, 0);/ 设置信道工作为2.4GHZ,收发必须一致SPI_RW_Reg(VRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH);设置接收数据长度，本次设置为32字节SPI_RW_Reg(VRITE_REG + RF_SETUP. 0x07);设置发射速率为1MHZ,发射功率为最犬值OdE*/* 函数：umt SPI_RW(umtuchar)严功能：NRF24L01的SPI写时序*/umt SPI_RW(umt uchar) uiiit bit_ctr;foi(bit_ctr=0;bit_ctr8;bit_cU+) /

11、output 8-bitMOSI = (uchar& 0x80); uchar = (uchar 1);SCK= 1;uchar |= MISO:SCK = 0;letuin(uchar);/ output Cellar； MSB to MOSI/ shift next bit into MSE/ Set SCKlugh./ capture current MISO bit/ .tlien set SCK low again/ leturn read uchar严*/* 函数:uchaiSPI_Read(uchaneg) 严功能：NRF24L01的SPI时序严*/ uchai SPI_Read

12、(uchai- reg) uchar res val;CSN = 0;SPI_RW(reg); reg_val = SPI_RW(0);CSN= 1;H CSN low, mitialize SPI conununication. Select register to read from./ .then read registen-alueII CSN high ternuiiate SPI communication/ leturn register valueretuin(reg_val);严*/*功能：NRF24L01读写寄存器函数严*/umt SPI_RW_Reg(uchaT reg.

13、 uchar value) uiiit status;CSN = 0;status = SPI.RW(reg);SPI_RW(value);/ CSN low、iiiit SPI transaction / select register/ .and write value to it.return(status);/ return 11RF24L01 status uchar严*/* 函数：umtSPI_Read_Buf(uchaneg, uchai *pBuf, uchamchais)/*功能：用于读数据，reg：为寄存器地址，pBuf：为待读出数据地址，uchais：读出数据的 个数严*

14、/umt SPI_Read_Buf(uchar reg, uchar *pBuf. uchar uchais) uiiit status,uchar_ctr;CSN = 0;status = SPI.RW(reg);/ Set CSN low, init SPI tianaction/ Select register to write to and read status ucharfdr(uchai_cti-O;uchai_ctiuchais;uchai_cti+)pBuflucliai-.ctr = SPI_RW(0); /CSN= 1;return(status);/ return 11

15、RF24L01 status uchar严*/* 函数：umtSPLWrite.Bufuchaneg, uchai- *pBuf. uchaiuchais)严功能：用于写数据：为寄存器地址，pBuf：为待写入数据地址，uchais：写入数据的个数严*/umt SPI_Write_Buf(uchar reg, uchar *pBuf, ucliar uchais) uiiit status,uchar_ctr;CSN = 0;/SPI 使能status = SPI.RW(reg);fbr(uchai_cti-O; uchai_ctiuchars; uchai_ctr+) / SPI_RW(*pB

16、ufb+);CSN= 1;关闭 SPIretum(status); /严*/* 函数：void SetRX_Mode(void) 严功能：数据接收配置*/void SetRX_Mode(void)CE=0;/ IRQ收发完成中断响应，16SPI_RW_R珂VRTTE_REG + CONFIG. OxOf); 位CRC ,主接收CE= 1;inerDelay_us(l 30);严* *,严函数：unsigned char 11RF24L0l_RxPacket(unsigned char* rx_buf) 严功能：数据读取后放入rx_buf接收缓冲区中严* *,unsigned char 11RF

17、24L0l_RxPacket(unsigned char* rx_buf)unsigned char revale=0;sta=SPI_Read(STATUS); /读取状态寄存其来判断数据接收状况 if(RX_DR)/判断是否接收到数据CE = 0;/SPI 使能SPI_Read_Euf(RD_RX_PLOALMx_bi】f,TX_PLOAD_WIDTH);/ read receive payload from RX_FIFO bufferrevale =1;读取数据完成标志SPI_RW_Reg(VRITE_REG+STATUS、sta); /接收到数据后 RX_DR,TX_DS.MAX_P

18、T 都置高为1，通过写1来清楚中断标志retuin revale;严* */* 函数:void 11RF24L0 l_TxPacket(unsigned char * tx_buf) 严功能:发送tx_buf中数据严*/void 11RF24L0 l_TxPacket(unsigned char * tx_buf)CE=0;/StandBv I 模式SPI_Wnte_Ei】f(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); / 装载接收端地址/装载数SPI_Wnte_Euf(WR_TX_PLOAIZ tx.buf, TX_PLOAD_WID

19、TH);据SPI_RW_Reg(WRITE_REG + CONFIG OxOe);/ IRQ 收发完成中断响应，16位CRC,主发送CE=1;置高CE,激发数据发送inerDelay_us(10);*unsigned char tf =0;unsigned char TxBuf10=0;/unsigned char RxBuf10=0;*void main(void)/%单片机串11初始化/SCON=Ox50;/SCON:模式 1,8-bitUART,使能接收:REN=1TMOD=0x20;THl=0xfd;/波特率9600初值TLl=Oxfd;TR1=1;EA=1打开总中断ES=1#打开串I

20、 1中断%/uuCNRF24L01();上面保留三句移到了全局变量wlule(l)nRF24L01_TxPacket(TxBuf); / Transmit Tx buffer data Delav(lOOO);SPI_RW_Reg(WRITE_REG+STATUS,Oxff); 清零状态寄存器?*SetRX_Mode();nRF24L01_RxPacket(RxBuf);SBUF=RxBuflO;/存放到本单片机串I I输出?Delay(600);/?void UART_SER() mtenupt 4/uchai- Temp;/定义临时变量if(RI)RI=0;标志位清零读入缓冲区的值TxBu

21、fO=SBUF;/把输入的 save 到 TxBuf 里/ Delay(1000);/?如杲是发送标志位，清零TI=0;以卜程序参考多个网络程序后，经调试并且己经调通，町以稍加修改即可使用 本程序实现功能：24L01接收到数据后通过52单片机串II输出到电脑端查看，同时又把数 据回传（发送）实现双向通信include include tvpedef unsigned chai uchar;tvpedef unsigned chai unit;*卄*#*NRF24LO1 端丨 I定义 sbit MISO =P1A4; sbit MOSI =P1A3; sbit SCK =P1A2;sbit CE

22、 =P1AO; sbit CSN =P1A1;sbit IRQ =P1A5;/ 20 umts TX payload/ 20 umts TX payload#define EN_RXADDR#define SETUP_AW#define SETUP_RETR#define RF_CH 彳define RF_SETUP#define STATUS#define OBSERVE.TX#define CD#define RX_ADDR_P0#define RX_ADDR_P1#define RX_ADDR_P2#define RX_ADDR_P3#define RX_ADDR_P斗#define R

23、X_ADDR_P5#define TX_ADDR#define RX_PW_P0#define RX_PW.P1#define RX_PW_P2#define RX_PW_P3#define RX_PW_P4#define RX_PW_P5#define FIFO.STATUS#define TX_PLOAD_WIDTH 10#define RX_PLOAD_WIDTH 10 umt const TX_ADDRESSTX_ADR_WIDTH= 0x34,0x43,0x 10.Ox 10.0x01; 本地地址 umt const RX_ADDRESSRX_ADR_WIDTH= 0x34,0x43

24、,0x10,0x10,0x01; 接收地址 *NRF24L()1 寄存器指令 * *#define READ_REG0x00/读寄存器指令#define WRITE_REG0x20/写寄存器指令#define RD_RX_PLOAD0x61/读取接收数据指令#define WR_TX_PLOADOxAO/写待发数据指令#define FLUSH.TXOxEl/冲洗发送FIFO指令#define FLUSH_RX0xE2/冲洗接收FIFO指令#define REUSE_TX_PL0xE3/定义重复装载数据指令frdefine NOPOxFF/保留*#define CONFIG#define EN

25、_AA0x00 配置收发状态，CRC校验模式以及收发状态响应方式0x01 /自动应答功能设置0x02 可用信道设置0x03 /收发地址宽度设置0x04 /自动重发功能设置0x05 /工作频率设置0x06 /发射速率、功耗功能设置0x07 /状态寄存器0x08 /发送监测功能0x09 /地址检测0x0A /频道0接收数据地址0x0B /频道1接收数据地址0x0C /频道2接收数据地址0x0D /频道3接收数据地址0x0E /频道4接收数据地址OxOF /频道5接收数据地址0x10 /发送地址寄存器0x11 接收频道0接收数据长度0x12 /接收频道0接收数据长度0x13 接收频道0接收数据长度0

26、x14 /接收频道0接收数据长度0x15 接收频道0接收数据长度0x16 接收频道0接收数据长度0x17 /FIFO栈入栈出状态寄存器设置*void Delay(unsigned mt s);void inerDelay_us(unsigned char n); void init_NRF24L01 (void);umt SPI_RW(umt uchai);uchai SPI_Read(uchai- leg);void SetRX_Mode(void);umt SPI_RW_Reg(uchai uchai value);umt SPI_Read_Buf(uchar reg, uchar *pB

27、uf. uchai uchais); umt SPI_Wnte_Buf(uchar reg, uchar *pBuf, ucliar uchai s); unsigned char 11RF24L0l_RxPacket(unsigned char* rx_buf); void 11RF24L0 l_TxPacket(unsigned char * tx_buf);void Delay(unsigned mt s)*unsigned mt i; for(i=0; is; i+); for(i=0; i0;n)_nop_()；*NRF74I 01void init_NRF24L01 (void)

28、iiierDelay_us(l 00);CE=0;/ chip enableCSN=1;/ Spi disableSCK=0; /SPI_Wnte_Ei】f(WRITE_REG + TX_ADDR, TX.ADDRESS, TX_ADR_WIDTH);/写本地地址SPI_Wnte_Ei】f(WRITE_REG + RX_ADDR_P0. RX_ADDRESS, RX_ADR_WIDTH);/写接收端地址SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);/频道0自动 ACK应答允许SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);/允许接收地址

29、只有频道0,如果需要多频道可以参考Page21SPI_RW_Reg(WRITE_REG + RF_CH, 0);/ 设置信道工作为2.4GHZ,收发必须一致SPI_RW_Reg(WRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH);/设置接收数据长度，本次设置为32字节SPI_RW_Reg(VRITE_REG + RF_SETUR 0x07);设置发射速率为发射功率为最犬值OdE严*严函数：umt SPI_RW(uiiituchar)/*功能：NRF24L01的SPI写时序严*/umt SPI_RW(umt uchar)uiiit bit_ctr;for(bit_ctr=

30、0;bit_ctr8;bit_cU+) / output 8-bit/ output Cellar*. MSB to MO SI/ shift next bit into MSE/Set SCKlugh./ capture current MISO bit/ .tlien set SCK low againMOSI = (uchar& 0x80);uchar = (uchar 1);SCK= 1;uchar |= MISO:SCK = 0;/ leturn read ucharreturn(uchar);严*严函数：ucharSPI_Read(uchaneg)严功能：NRF24L01的SPI时

31、序严*/uchar SPI_Read(uchai- leg)uchar reg_val;CSN = 0;SPI_RW(reg); reg_val = SPI_RW(0);CSN= 1;H CSN low, mitialize SPI conununication. Select register to read from./ .then read registen-alue CSN high, terminate SPI conununication/ leturn register valueretum(reg_val);严*/*功能：NRF24L01读写寄存器函数严*/umt SPI_RW

32、_Reg(uchaT reg, uchai value)umt status;CSN = 0;status = SPI.RW(reg); SPI_RW(value);CSN= 1;/ CSN low、iiiit SPI transaction / select register/ .and write value to it./ CSN high againretum(status);/ retuin 11RF24L01 status uchar严*/* 函数：umtSPI_Read_Buf(uchaiTeg, uchai *pBu uchanichars)/*功能：用于读数据，reg：为寄存

33、器地址，pBuf：为待读出数据地址，uchais：读出数据的 个数严*/umt SPI_Read_Buf(uchar reg, uchar *pBuf. uchai uchais) uiiit status,uchai_ctr;CSN = 0;status = SPI.RW(reg);/ Set CSN low, init SPI tianaction/ Select register to write to and read status ucharfdr(uchai_cti-O;uchai_ctiuchais;uchai_cti+)pBuflucliai-.ctr = SPI_RW(0);

34、 /CSN= 1;retum(status);/ return 11RF24L01 status uchar严* */* 函数：umtSPI_Wiite_Buf(uchaneg, uchar *pBuf, uchaiuchais)严功能：用于写数据：为寄存器地址，pBuf：为待写入数据地址，uchais：写入数据的个数严*/umt SPI_Wnte_Buf(uchar reg, uchar *pBuf, ucliar uchais) uiiit status,uchai_ctr;CSN = 0;/SPI 使能status = SPI.RW(reg);for(uchai_cti-O; uchai

35、ctiuchars; uchai_ctr+) / SPI_RW(*pBufb+);CSN= 1;关闭 SPIretuni(status); /严*/* 函数：void SetRX_Mode(void)严功能：数据接收配置严*/void SetRX_Mode(void)CE=0;/ IRQ收发完成中断响应，16SPI_RW_R珂VRTTE_REG + CONFIG. OxOf); 位CRC ,主接收CE= 1;inerDelay_us(l 30);严* *,/* 函数：unsigned char 11RF24L0l_RxPacket(unsigned char* rx_buf) 严功能：数据读取

36、后放入rx_buf接收缓冲区中严* *,unsigned char 11RF24L0l_RxPacket(unsigned char* rx_buf)unsigned char revale=0;sta=SPI_Read(STATUS); /读取状态寄存其来判断数据接收状况 if(RX_DR)/判断是否接收到数据CE = 0;SPI 使能SPI_Read_Buf(RD_RX_PLOADjx_buf,TX_PLOAD_WIDTH);/ read receive payload from RX_FIFO bufferrevale =1;读取数据完成标志SPI_RW_Reg(VRITE_REG+ST

37、ATUS、sta);/接收到数据后 RX_DR,TX_DS.MAX_PT都置高为1，通过写1来清楚中断标志retuin revale;严* */* 函数:void 11RF24L01 _TxPacket(unsigned char * tx_buf) 严功能:发送tx_buf中数据*/void 11RF24L0 l_TxPacket(unsigned char * tx_buf)CE=0;/StandBv I 模式SPI_Wnte_Euf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); / 装载接收端地址/装载数SPI_Wnte_Euf(W

38、R_TX_PLOAIZ tx.buf, TX_PLOAD_WIDTH); 据 IRQ收发完成中断响应，16SPI_RW_Reg(VRITE_REG + CONFIG. OxOe); 位CRC,主发送CE=1;置高CE,激发数据发送inerDelay_us(10);*unsigned char tf =0;unsigned char TxBuf10=0;/unsigned char RxBuf10=0;*void main(void)/%单片机串11初始化/SCON=Ox50;/SCON:模式 1,8-bitUART,使能接收:REN=1TMOD=0x20;THl=0xfd;/波特率9600初值

39、TLl=0xfd;TR1=1;EA=1打开总中断ES=1#打开串I I中断uuCNRF24L01();上面保留三句移到了全局变量wlule(l)SetRX_Mode();11RF24L0 l.RxPacket(RxBuf);TxBuf(0=RxBuf0;SBUF=RxBuf0;11RF24L0l_TxPacket(TxBuf); / Transmit Tx buffer data /SPI_RW_Reg(WRITE_REG+STATUS、Oxfi);/ 清零状态寄存器?Delav(lOOO);void UART_SER() mtermpt 4if(RI)RI=0;】f(TI)/如果是发送标志位，清零TI=0;