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#include <pic.h>
//#include <pic16630.h>
#define uchar unsigned char
#define uint unsigned int
#define PORTAIT(adr,bit) ((unsigned)(&adr)*8+(bit)) ///絕對尋址位操作指令
#define PORTCIT(adr,bit)((unsigned)(&adr)*8+(bit)) ///絕對尋址位操作指令
static bit KEY1 @ PORTAIT(PORTA,0);
static bit KEY2 @ PORTAIT(PORTA,1);
static bit KEY3 @ PORTAIT(PORTA,4);
static bit KEY4 @ PORTAIT(PORTA,5);
static bit DECODE_POWER_ON_OFF @ PORTCIT(PORTC,0);
static bit LED1 @ PORTCIT(PORTC,1);
static bit LED2 @ PORTCIT(PORTC,5);
static bit BEEP @ PORTCIT(PORTC,2);
static bit DIN @ PORTCIT(PORTC,3);
static bit DOUT @ PORTCIT(PORTC,4);
uint i;
uchar keyCode;
bit sign_key;
#define Err 0xFF //當解碼程序發現接收的數據是無效數據時返回此值
char DeviceAddr[9]="1010ffff"; //報警器的地址，1　接高電平，0　接低電平(地),　F　為懸空.(人可讀)
uchar AddrH,AddrL; //產品地址(機可讀)
void delay_150us(uchar t)
{ uchar k;
uchar j;
for(k=t;k>0;k--)
for(j=50;--j;);
}
void delay_50us(uchar t)
{
uchar k;
uchar i;
for(k=t;k>0;k--)
for(i=14;--i;);
}
void Convert() //人可讀地址轉換為MCU可讀
{
uchar i;
for(i=0;i<4;i++){
if(DeviceAddr[i]=='0')
{ AddrH<<=2;
AddrH|=0;
}
if(DeviceAddr[i]=='1')
{
AddrH<<=2;
AddrH|=3;
}
if(DeviceAddr[i]=='f')
{
AddrH<<=2;
AddrH|=1;
}
}
for(i=4;i<8;i++){
if(DeviceAddr[i]=='0')
{
AddrL<<=2;
AddrL|=0;
}
if(DeviceAddr[i]=='1')
{
AddrL<<=2;
AddrL|=3;
}
if(DeviceAddr[i]=='f')
{
AddrL<<=2;
AddrL|=1;
}
}
}
void Send(uchar *DAddr,uchar SendData)
{ uchar temp,i;
DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(60);
for(i=0;i<8;i++)//Send AddrCode
{ temp=*DAddr++;
if(temp=='1')
{ DOUT=1;
delay_150us(6);
DOUT=0;
delay_150us(2);
DOUT=1;
delay_150us(6);
DOUT=0;
delay_150us(2);
}
if(temp=='f')
{ DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(6);
DOUT=1;
delay_150us(6);
DOUT=0;
delay_150us(2);
}
if(temp=='0')
{ DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(6);
DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(6);
}
}
for(i=0;i<4;i++)///Send Data
{ if(SendData&(8>>i))
{
DOUT=1;
delay_150us(6);
DOUT=0;
delay_150us(2);
////////////////////
DOUT=1;
delay_150us(6);
DOUT=0;
delay_150us(2);
}
else
{
DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(6);
///
DOUT=1;
delay_150us(2);
DOUT=0;
delay_150us(6);
}
}
}
uchar GetData()//解碼程序
{
uchar i,j,k;
uchar ReadCode[3],GetCode;
//------------------------找同步頭-------------------------
if(!DIN)return Err;
delay_150us(3);
for(i=0;i<28;i++)
{
if(DIN)return Err;
delay_150us(2);
}
for(i=0;i<30;i++)
{
if(DIN)break;
delay_50us(1);
if(i>25)return Err;//如果超時則返回
}
//-----------------------接收地址碼和數據碼-----------------
for(j=0;j<3;j++)
{
for(i=0;i<8;i++)
{
delay_150us(2);
delay_50us(1);
ReadCode[j]=ReadCode[j]<<1;
ReadCode[j]=ReadCode[j]|DIN;
if(DIN)
{ //while(DIN);//等待0出現
for(k=0;k<255;k++)
{ delay_50us(2);
if(DIN==0)break;
if(k>12)return Err;//超時，返回錯誤代碼
}
}
//while(!DIN);//等待1出現
for(k=0;k<255;k++)
{ delay_50us(2);
if(DIN==1)break;
if(k>12)return Err;//超時，返回錯誤代碼
}
}
}
//-------------------校驗地址及運算數據---------------------
if(ReadCode[0]!=AddrH)return Err;
if(ReadCode[1]!=AddrL)return Err;//校驗地址
GetCode=ReadCode[2]&0x01;
GetCode|=(ReadCode[2]&0x04)>>1;
GetCode|=(ReadCode[2]&0x10)>>2;
GetCode|=(ReadCode[2]&0x40)>>3;
return GetCode;
}
void delay(){ for(i=6553;i!=0;i--)continue;}
void beep(void)
{ uchar i;
for(i=0;i<0xff;i++)
{ delay_150us(5);
BEEP=!BEEP;
}
BEEP=0;
}
void interrupt ISR(void) //中斷服務程序
{
if(RAIE && RAIF)
{ RAIF = 0;
delay();
if(KEY1==0){sign_key=1;keyCode=1;}
if(KEY2==0){sign_key=1;keyCode=2;}
if(KEY3==0){sign_key=1;keyCode=3;}
if(KEY4==0){sign_key=1;keyCode=4;}
//PORTA = PORTA;
}
/* if(T0IE && T0IF) //判TMR0 中斷
{
T0IF = 0; //清除TMR0 中斷標誌
}
if(TMR1IE && TMR1IF) //判TMR1 中斷
{
TMR1IF = 0; //清除TMR1 中斷標誌
}*/
}
void main()
{
uchar mydata;
DOUT=0; //發送數據端口上電為低電平
CMCON=0x07; //關閉比較器
TRISA=0x33; //PORTA_1為輸入。
OPTION=0x7f; //弱上拉全局控制位使能
WPUA=0xFF; //PORTA弱上拉控制位使能
TRISC=0x08; //設置C口輸入輸出
RAIF=0; //中斷標誌位清零
PORTA=0x00; //配合 PORTA = PORTA 給電平中斷做準備
RAIE=1; //A口電平中斷允許
IOCA=0x33; //A口各個中斷允許
GIE =1; //總中斷允許
PORTA = PORTA;
Convert();
Send("1010ffff",1);
for(;;){
if(sign_key)
{ switch(keyCode){
case 1:
LED1=0;
Send(DeviceAddr,1);
Send(DeviceAddr,1);
Send(DeviceAddr,1);
Send(DeviceAddr,1);
break;
case 2:
Send(DeviceAddr,2);
Send(DeviceAddr,2);
Send(DeviceAddr,2);
Send(DeviceAddr,2);
LED1=1;
break;
case 3:
Send(DeviceAddr,4);
Send(DeviceAddr,4);
Send(DeviceAddr,4);
Send(DeviceAddr,4);
LED2=1;
DECODE_POWER_ON_OFF=1;
break;
case 4:
Send(DeviceAddr,8);
Send(DeviceAddr,8);
Send(DeviceAddr,8);
Send(DeviceAddr,8);
DECODE_POWER_ON_OFF=0;
LED2=0;
break;
}
sign_key=0;
//beep();
}
mydata=GetData();
if(mydata!=Err)
{
if(mydata==1)LED1=0;
if(mydata==2)LED1=1;
if(mydata==4)LED2=0;
if(mydata==8)LED2=1;
}
}
}

復制代碼

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