NRF24l01一对一双向通信程序已调通.docx

1、NRF24l01一对一双向通信程序已调通以下程序参考多个网络程序后，经调试并且已经调通，可以稍加修改即可使用经测试可实现双向通信发送方本程序实现功能：从52单片机串口读入数据后通过24L01发送/24L01发送#include #include typedef unsigned char uchar;typedef unsigned char uint;/*NRF24L01端口定义*sbit MISO=P14;sbit MOSI=P13;sbitSCK =P12;sbitCE =P10;sbitCSN =P11;sbitIRQ =P15;/*按键*/sbitKEY1=P36;/sbitKEY2

2、=P37;/*数码管位选*/sbitled3=P20;/sbitled2=P21;/sbitled1=P22;/sbitled0=P23;/*蜂明器*/sbitBELL=P34;/*数码管0-9编码*/uchar seg10=0xC0,0xCF,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90; /09段码/*NRF24L01*#define TX_ADR_WIDTH 5 / 5 uints TX address width#define RX_ADR_WIDTH 5 / 5 uints RX address width#define TX_PLOAD_WIDTH

3、 10/ 20 uints TX payload#define RX_PLOAD_WIDTH 10/ 20 uints TX payloaduint const TX_ADDRESSTX_ADR_WIDTH= 0x34,0x43,0x10,0x10,0x01;/本地地址uint const RX_ADDRESSRX_ADR_WIDTH= 0x34,0x43,0x10,0x10,0x01;/接收地址/*NRF24L01存放器指令*#define READ_REG 0x00 / 读存放器指令#define WRITE_REG 0x20 / 写存放器指令#define RD_RX_PLOAD 0x6

4、1 / 读取接收数据指令#define WR_TX_PLOAD 0xA0 / 写待发数据指令#define FLUSH_TX 0xE1 / 冲洗发送 FIFO指令#define FLUSH_RX 0xE2 / 冲洗接收 FIFO指令#define REUSE_TX_PL 0xE3 / 定义重复装载数据指令#define NOP 0xFF / 保存/*SPI(nRF24L01)存放器地址*#define CONFIG 0x00 / 配置收发状态，CRC校验模式以与收发状态响应方式#define EN_AA 0x01 / 自动应答功能设置#define EN_RXADDR 0x02 / 可用信道设

5、置#define SETUP_AW 0x03 / 收发地址宽度设置#define SETUP_RETR 0x04 / 自动重发功能设置#define RF_CH 0x05 / 工作频率设置#define RF_SETUP 0x06 / 发射速率、功耗功能设置#define STATUS 0x07 / 状态存放器#define OBSERVE_TX 0x08 / 发送监测功能#define CD 0x09 / 地址检测#define RX_ADDR_P0 0x0A / 频道0接收数据地址#define RX_ADDR_P1 0x0B / 频道1接收数据地址#define RX_ADDR_P2 0

6、x0C / 频道2接收数据地址#define RX_ADDR_P3 0x0D / 频道3接收数据地址#define RX_ADDR_P4 0x0E / 频道4接收数据地址#define RX_ADDR_P5 0x0F / 频道5接收数据地址#define TX_ADDR 0x10 / 发送地址存放器#define RX_PW_P0 0x11 / 接收频道0接收数据长度#define RX_PW_P1 0x12 / 接收频道0接收数据长度#define RX_PW_P2 0x13 / 接收频道0接收数据长度#define RX_PW_P3 0x14 / 接收频道0接收数据长度#define RX

7、_PW_P4 0x15 / 接收频道0接收数据长度#define RX_PW_P5 0x16 / 接收频道0接收数据长度#define FIFO_STATUS 0x17 / FIFO栈入栈出状态存放器设置/*void Delay(unsigned int s);void inerDelay_us(unsigned char n);void init_NRF24L01(void);uint SPI_RW(uint uchar);uchar SPI_Read(uchar reg);void SetRX_Mode(void);uint SPI_RW_Reg(uchar reg, uchar valu

8、e);uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars);uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uchars);unsigned char nRF24L01_RxPacket(unsigned char* rx_buf);void nRF24L01_TxPacket(unsigned char * tx_buf);/*长延时*void Delay(unsigned int s)unsigned int i;for(i=0; is; i+);for(i=0; i0;n-)_no

9、p_();/*NRF24L01初始化*/void init_NRF24L01(void)inerDelay_us(100);CE=0; / chip enableCSN=1; / Spi disableSCK=0; / SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); / 写本地地址SPI_Write_Buf(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

10、答允许SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); / 允许接收地址只有频道0，如果需要多频道可以参考Page21 SPI_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(WRITE_REG + RF_SETUP, 0x07); /设置发射速率为1MHZ，发射功率为最大值0dB/*/*函数：uint SPI_RW(uintuchar)/*功能：N

11、RF24L01的SPI写时序/*/uint SPI_RW(uint uchar)uint bit_ctr;for(bit_ctr=0;bit_ctr8;bit_ctr+) / output 8-bitMOSI = (uchar& 0x80); / output uchar, MSB to MOSIuchar = (uchar 1); / shift next bit into MSB.SCK = 1; / Set SCK high.uchar |= MISO; / capture current MISO bitSCK = 0; / .then set SCK low againreturn(

12、uchar); / return read uchar/*/*函数：ucharSPI_Read(ucharreg)/*功能：NRF24L01的SPI时序/*/uchar SPI_Read(uchar reg)uchar reg_val;CSN = 0; / CSN low, initialize SPI munication.SPI_RW(reg); / Select register to read from.reg_val = SPI_RW(0); / .then read registervalueCSN = 1; / CSN high, terminate SPI munication

13、return(reg_val); / return register value/*/*功能：NRF24L01读写存放器函数/*/uint SPI_RW_Reg(uchar reg, uchar value)uint status;CSN = 0; / CSN low, init SPI transactionstatus = SPI_RW(reg); / select registerSPI_RW(value); / .and write value to it.CSN = 1; / CSN high againreturn(status); / return nRF24L01 status

14、 uchar/*/*函数：uintSPI_Read_Buf(ucharreg, uchar *pBuf, ucharuchars)/*功能: 用于读数据，reg：为存放器地址，pBuf：为待读出数据地址，uchars：读出数据的个数/*/uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars)uint status,uchar_ctr;CSN = 0; / Set CSN low, init SPI tranactionstatus = SPI_RW(reg); / Select register to write to and read

15、status ucharfor(uchar_ctr=0;uchar_ctruchars;uchar_ctr+)pBufuchar_ctr = SPI_RW(0); / CSN = 1; return(status); / return nRF24L01 status uchar/*/*函数：uintSPI_Write_Buf(ucharreg, uchar *pBuf, ucharuchars)/*功能: 用于写数据：为存放器地址，pBuf：为待写入数据地址，uchars：写入数据的个数/*/uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uc

16、hars)uint status,uchar_ctr;CSN = 0; /SPI使能status = SPI_RW(reg); for(uchar_ctr=0; uchar_ctruchars; uchar_ctr+) /SPI_RW(*pBuf+);CSN = 1; /关闭SPIreturn(status); / /*/*函数：void SetRX_Mode(void)/*功能：数据接收配置/*/void SetRX_Mode(void)CE=0;SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); / IRQ收发完成中断响应，16位CRC，主接收CE = 1; ine

17、rDelay_us(130);/*/*函数：unsigned char nRF24L01_RxPacket(unsigned char* rx_buf)/*功能：数据读取后放入rx_buf接收缓冲区中/*/unsigned char nRF24L01_RxPacket(unsigned char* rx_buf) unsigned char revale=0;sta=SPI_Read(STATUS);/ 读取状态存放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_PLOAD,rx_buf,TX_PLOAD_WIDT

18、H);/ read receive payload from RX_FIFO bufferrevale =1;/读取数据完成标志SPI_RW_Reg(WRITE_REG+STATUS,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return revale;/*/*函数：void nRF24L01_TxPacket(unsigned char * tx_buf)/*功能：发送tx_buf中数据/*/void nRF24L01_TxPacket(unsigned char * tx_buf)CE=0;/StandBy I模式SPI_Write_B

19、uf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); / 装载接收端地址SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); / 装载数据SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); / 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;/*/*主函数*

20、void main(void) /%单片机串口初始化/SCON=0x50;/SCON:模式1,8-bitUART,使能接收:REN=1TMOD=0x20;TH1=0xfd;/波特率9600初值TL1=0xfd;TR1=1;EA=1;/打开总中断ES=1;/打开串口中断 /%/ init_NRF24L01() ;/上面保存三句移到了全局变量 while(1) nRF24L01_TxPacket(TxBuf);/ Transmit Tx buffer dataDelay(1000);/SPI_RW_Reg(WRITE_REG+STATUS,0xff);/清零状态存放器？/*SetRX_Mode()

21、; nRF24L01_RxPacket(RxBuf);SBUF=RxBuf0;/存放到本单片机串口输出? Delay(600);/?void UART_SER() interrupt 4/uchar Temp;/定义临时变量 if(RI) RI=0;/标志位清零/读入缓冲区的值 TxBuf0=SBUF;/把输入的save到TxBuf里/ Delay(1000);/? if(TI)/如果是发送标志位，清零TI=0;接收方：以下程序参考多个网络程序后，经调试并且已经调通，可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单片机串口输出到电脑端查看，同时又把数据回传发送实现双向通信#include #include typedef unsigned char uchar;typedef unsigned char