NRF905无线模块程序.doc

发射#include#include#define uint unsigned int #define uchar unsigned charsbit TX_EN=P35;sbit TRX_CE=P11;sbit PWR_UP=P34;sbit CD=P33;sbit AM=P13;sbit DR=P32;sbit MISO=P16;sbit MOSI=P14;sbit SCK=P17;sbit CSN=P15;sbit led=P30;sbit key1=P12;sbit key2=P10;sbit key3=P37;uchar key_value=0;void Delay(uint x) uint i; for(i=0;ix;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433.2MHZ SpiWrite( 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 key1Delay(5);if(!key1) Delay(3); while(!key1); key_value=0xa0; else if(!key2) /senfing key2Delay(5);if(!key2) Delay(3); while(!key2); key_value=0xa1; if(!key3) /senfing key3Delay(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 #include #define uint unsigned int#define uchar unsigned charsbit TX_EN=P00;sbit TRX_CE=P01;sbit PWR_UP=P02;sbit CD=P03;sbit AM=P04;sbit DR=P05;sbit MISO=P06;sbit MOSI=P07;sbit SCK=P20;sbit CSN=P21;sbit led1=P11;sbit led2=P12;sbit led3=P13;uchar TxRxBuffer3;bit success_flag=0;void Delay(uint x) uint i; for(i=0;ix;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433.2MHZ SpiWrite(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TxRxBuffer0 = SpiRead();TxRxBuffer1 = SpiRead();TxRxBuffer2 = SpiRead(); CSN=1;while(DR);TRX_CE=1;if(TxRxBuffer0=0x01)&(TxRxBuffer1=0x02) TxRxBuffer0=0xff;TxRxBuffer1=0xff;success_flag=1;if(TxRxBuffer2=0xa0)led1=led1;else if(TxRxBuffer2=0xa1)led2=led2;else if(TxRxBuffer2=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