NRF905无线模块程序

发射#include<reg52.h>#include<intrins.h>#define uint unsigned int#define uchar unsigned charsbit TX_EN= P3^5;sbit TRX_CE=P1^1;sbit PWR_UP=P3^4;sbit CD=P3^3;sbit AM=P1^3;sbit DR=P3^2;sbit MISO=P1^6;sbit MOSI=P1^4;sbit SCK=P1^7;sbit CSN=P1^5;sbit led=P3^0;sbit key1=P1^2;sbit key2=P1^0;sbit key3=P3^7;uchar key_value=0;void Delay(uint x){uint i;for(i=0;i<x;i++){_nop_();}}void SpiWrite(uchar date){uchar i=8;while (i--){Delay(10);MOSI=(bit)(date&0x80);date<<=1 ;Delay(10);SCK=1;Delay(10);SCK=0;}}void TxPacket(void){PWR_UP=1;TX_EN=1;TRX_CE=0;Delay(2);CSN=0;SpiWrite(0x22); //写发送地址,后面跟4字节地址//SpiWrite(0xE7);SpiWrite(0xE7);SpiWrite(0xE7);SpiWrite(0xE7);CSN=1;Delay(2);CSN=0;SpiWrite(0x20); //写发送数据命令,后面跟三字节数据//SpiWrite(0x01);SpiWrite(0x02);SpiWrite(key_value);CSN=1;Delay(5);TRX_CE=1; //使能发射模式//Delay(500); //等带发送完成//TRX_CE=0;while(!DR);}////////////初始化配置寄存器////////////////void Ini_System(void){CSN=1;SCK=0;PWR_UP=1;TRX_CE=0;TX_EN=0;Delay(2);CSN=0;SpiWrite( 0x00); //配置命令//SpiWrite( 0x6C); //CH_NO,配置频段在433.2MHZSpiWrite( 0x0C); //输出功率为10db,不重发，节电为正常模式SpiWrite( 0x44); //地址宽度设置，为4字节SpiWrite( 0x03);SpiWrite( 0x03); //接收发送有效数据长度为3字节SpiWrite( 0xE7);SpiWrite( 0xE7);SpiWrite( 0xE7);SpiWrite( 0xE7); //接收地址SpiWrite( 0xDE);CSN=1;PWR_UP=1;TRX_CE=1;TX_EN=0;Delay(1000);}void main(void){Ini_System();DR=1;TRX_CE=0;Delay(1000);TX_EN=0;TRX_CE=1;PWR_UP=1;key_value=0x00;while(1){if(!key1) //senfing key1{Delay(5);if(!key1){ Delay(3);while(!key1);key_value=0xa0;}}elseif(!key2) //senfing key2{Delay(5);if(!key2){ Delay(3);while(!key2);key_value=0xa1;}}if(!key3) //senfing key3{Delay(5);if(!key3){ Delay(3);while(!key3);key_value=0xa2;}}if(key_value!=0x00){led=0;TxPacket();key_value=0x00;TX_EN=0;TRX_CE=1;PWR_UP=1;Delay(6000);led=1;}}}接收#include <reg52.h>#include <intrins.h>#define uint unsigned int#define uchar unsigned charsbit TX_EN= P0^0;sbit TRX_CE=P0^1;sbit PWR_UP=P0^2;sbit CD=P0^3;sbit AM=P0^4;sbit DR=P0^5;sbit MISO=P0^6;sbit MOSI=P0^7;sbit SCK=P2^0;sbit CSN=P2^1;sbit led1=P1^1;sbit led2=P1^2;sbit led3=P1^3;uchar TxRxBuffer[3];bit success_flag=0;void Delay(uint x){uint i;for(i=0;i<x;i++)_nop_();}void SpiWrite(uchar date){uchar i=8;while (i--){Delay(10);MOSI=(bit)(date&0x80);date<<=1 ;Delay(10);SCK=1;Delay(10);SCK=0;}}uchar SpiRead() //from 905 read data{uchar i=8,date1=0;;while (i--){date1<<=1 ;date1|=MISO;SCK=1 ;Delay(10);SCK=0 ;Delay(10);}return date1;}void Ini_System(void) /*初始化配置寄存器*/{CSN=1;SCK=0;PWR_UP=1;TRX_CE=0;TX_EN=0;Delay(2);CSN=0;SpiWrite(0x00); //配置命令//SpiWrite(0x6C); //CH_NO,配置频段在433.2MHZSpiWrite(0x0C); //输出功率为10db,不重发，节电为正常模式SpiWrite(0x44); //地址宽度设置，为4字节SpiWrite(0x03);SpiWrite(0x03); //接收发送有效数据长度为3字节SpiWrite(0xE7);SpiWrite(0xE7);SpiWrite(0xE7);SpiWrite(0xE7); //接收地址SpiWrite(0xDE);CSN=1;PWR_UP=1;TRX_CE=1;TX_EN=0;Delay(1000);}void Wait_Rec_Packet(void){if(DR){TRX_CE=0;//如果数据准备好，则进入待机模式，以便SPI口操作CSN=0;SpiWrite(0x24);//接收数据包TxRxBuffer[0] = SpiRead();TxRxBuffer[1] = SpiRead();TxRxBuffer[2] = SpiRead();CSN=1;while(DR);TRX_CE=1;if((TxRxBuffer[0]==0x01)&&(TxRxBuffer[1]==0x02)){TxRxBuffer[0]=0xff;TxRxBuffer[1]=0xff;success_flag=1;if(TxRxBuffer[2]==0xa0){ led1=~led1; }elseif(TxRxBuffer[2]==0xa1){ led2=~led2; }elseif(TxRxBuffer[2]==0xa2){ led3=~led3; }Ini_System();}}}void main(void){Ini_System();PWR_UP=0;DR=1;led1=0;led2=0;led3=0;success_flag=0;TRX_CE=0;Delay(1000);TX_EN=0;TRX_CE=1;PWR_UP=1;while(1){Wait_Rec_Packet(); //等待接收完成if(success_flag){TX_EN=0;TRX_CE=1;PWR_UP=1;Delay(5000);Delay(5000);success_flag=0;Delay(10000);}}}。