#include <reg52.h>
#include <ABSACC.h>
#include <intrins.h>
#include <stdio.h>
#define uint unsigned int
#define uchar unsigned char
#define BYTE_BIT0 0x01
#define BYTE_BIT1 0x02
#define BYTE_BIT2 0x04
#define BYTE_BIT3 0x08
#define BYTE_BIT4 0x10
#define BYTE_BIT5 0x20
#define BYTE_BIT6 0x40
#define BYTE_BIT7 0x80
bdata unsigned char DATA_BUF;
#define DATA7 ((DATA_BUF&BYTE_BIT7) != 0)
#define DATA0 ((DATA_BUF&BYTE_BIT0) != 0)
sbit flag =DATA_BUF^7;
sbit flag1 =DATA_BUF^0;
#define TxRxBuf_Len 4
unsigned char TxRxBuf[TxRxBuf_Len];
code TxAddress[4]={0xcc,0xcc,0xcc,0xcc};
sbit TXEN=P2^1;
sbit TRX_CE=P2^2;
sbit PWR=P1^0;
sbit MISO=P1^4;
sbit MOSI=P1^5;
sbit SCK=P1^6;
sbit CSN=P1^7;
sbit AM=P1^2;
sbit DR=P1^3;
sbit CD=P1^1;
sbit call0=P3^2;
sbit call1=P3^3;
sbit led0=P3^6;
sbit led1=P3^7;
#define WC 0x00
#define RC 0x10
#define WTP 0x20
#define RTP 0x21
#define WTA 0x22
#define RTA 0x23
#define RRP 0x24
unsigned char idata RFConf[11]=
{
0x00, //ÅäÖÃÃüÁî//
0x4c, //CH_NO,ÅäÖÃÆµ¶ÎÔÚ423MHZ
0x0c, //Êä³ö¹¦ÂÊΪ10db,²»ÖØ·¢£¬½ÚµçΪÕý³£Ä£Ê½
0x44, //µØÖ·¿í¶ÈÉèÖã¬Îª4×Ö½Ú
0x04,0x04, //½ÓÊÕ·¢ËÍÓÐЧÊý¾Ý³¤¶ÈΪ32×Ö½Ú
0xCC,0xCC,0xCC,0xCC, //½ÓÊÕµØÖ·
0x58, //CRC³äÐí£¬8λCRCУÑ飬ÍⲿʱÖÓÐźŲ»Ê¹ÄÜ£¬16M¾§Õñ
};
void Delay(int n)
{
uint i;
while(n--)
for(i=0;i<80;i++);
}
unsigned char SpiRead(void)
{
unsigned char j;
for (j=0;j<8;j++)
{
DATA_BUF=DATA_BUF<<1;
SCK=1;
if (MISO) //¶ÁÈ¡×î¸ß룬±£´æÖÁ×îĩβ£¬Í¨¹ý×óÒÆÎ»Íê³ÉÕû¸ö×Ö½Ú
{
DATA_BUF|=BYTE_BIT0;
}
else
{
DATA_BUF&=~BYTE_BIT0;
}
SCK=0;
}
return DATA_BUF;
}
void SpiWrite(unsigned char send)
{
unsigned char i;
DATA_BUF=send;
for (i=0;i<8;i++)
{
if (DATA7)
{
MOSI=1;
}
else
{
MOSI=0;
}
SCK=1;
DATA_BUF=DATA_BUF<<1;
SCK=0;
}
}
void nRF905Init(void)
{
CSN=1;
SCK=0;
DR=1;
AM=1;
CD=1;
PWR=1;
TRX_CE=0;
TXEN=0;
}
void Config905(void)
{
uchar i;
CSN=0;
// SpiWrite(WC);
for (i=0;i<11;i++)
{
SpiWrite(RFConf[i]);
}
CSN=1;
}
void TxPacket(uchar *TxRxBuf)
{
uchar i;
CSN=0;
SpiWrite(WTP);
for (i=0;i<4;i++)
{
SpiWrite(TxRxBuf[i]);
}
CSN=1;
Delay(1);
CSN=0;
SpiWrite(WTA);
for (i=0;i<4;i++)
{
SpiWrite(TxAddress[i]);
}
CSN=1;
TRX_CE=1;
Delay(1);
TRX_CE=0;
}
void SetTxMode(void)
{
TRX_CE=0;
TXEN=1;
Delay(1);
}
void SetRxMode(void)
{
TRX_CE=1;
TXEN=0;
Delay(1);
}
unsigned char CheckDR(void) //¼ì²éÊÇ·ñÓÐÐÂÊý¾Ý´«Èë Data Ready
{
// DR=1;
if (DR==1&&TRX_CE==1&&TXEN==0)
{
// DR=0;
return 1;
}
else
{
return 0;
}
}
void RxPacket(void)
{
uchar i;
Delay(1);
// TRX_CE=0;
Delay(100);
TRX_CE=0;
CSN=0;
Delay(1);
SpiWrite(RRP);
for (i = 0 ;i < 4 ;i++)
{
TxRxBuf[i]=SpiRead();
}
CSN=1;
Delay(10);
TRX_CE=1;
}
void RX(void)
{
SetRxMode();
// while (CheckDR()==0);
Delay(10);
RxPacket();
// if(TxRxBuf[0]==0x29)
// {
// led0=0;
// led1=0;
// }
}
void main()
{
int t;
nRF905Init();
Config905();
while(1)
{
RX();
if(call0==0) {while(!call0); TxRxBuf[0]=0x22; t=1;}
if(call1==0) {while(!call1); TxRxBuf[0]=0x33;t=1;}
if(t==1)
{
t=0;
SetTxMode();
TxPacket(TxRxBuf);
}
}
}