idk.h

时钟芯片H1380控制程序

#define	ID_Card_no		((BYTE volatile idata *)0xE0)

bdata BYTE DM,DH;
sbit Dm0 = DM^0;
sbit Dm1 = DM^1;
sbit Dm2 = DM^2;
sbit Dm3 = DM^3;
sbit Dm4 = DM^4;
sbit Dm5 = DM^5;
sbit Dm6 = DM^6;
sbit Dm7 = DM^7;
sbit Dh0 = DH^0;
sbit Dh1 = DH^1;

bit			Btemp,Bdone;
bit			b_Card_In;
BYTE		IDCarIn, Sum2;
BYTE		IDCardTime;
/*
void delay(int n)
{
int i,j;
for(i=n;i>0;i--)
	for(j=100;j>0;j--);
}*/
#define	H_Mth			(595/256)	// 2
#define	L_Mth			(595%256)	// 83
#define	H_Mtl			(365/256)	// 1
#define	L_Mtl			(365%256)	// 109
#define	H_MMh			(295/256)	// 1
#define	L_MMh			(295%256)	//	39
#define	H_MMl			(180/256)	// 0
#define	L_MMl			(180%256)	// 180
#define	H_M43			(310/256)	// 1
#define	L_M43			(310%256)	// 54
void Check_IDcard(void)
{
	BYTE Sum0,Sum1,IDB;
	BYTE i,Hi,Li;
	TR0=0;  TH0=TL0=0;  TR0=1;
	Hi=Li=i=0;
	Btemp=B_RFIN;			//B_RFIN =	P3^4;
	if(0xFF>IDCarIn) IDCarIn++;
	IDCardTime=10;
	while(1){
		if(Btemp!=B_RFIN){	// TO get first bit
			TR0=0;
			if(TH0<H_Mth || (TH0==H_Mth && TL0<L_Mth)){
				if(TH0>H_Mtl || (TH0==H_Mtl && TL0>L_Mtl)){
					i++;  TL0=28;
					if(i>5) break;
				}else if((TH0<H_MMh || (TH0==H_MMh&&TL0<L_MMh))&&(TH0>H_MMl || (TH0==H_MMl&&TL0>L_MMl))){
					TL0=70;  i++;
				}else{TL0=58; if(0!=i) i--;}
			}else{TL0=12; if(0!=i) i--;}
			TH0=0;  TR0=1;  Btemp=!Btemp;
		}
		if(0==IDCardTime) return;  // Time Up
		if(0==i){
			if(TH0>H_Mth){
				TR0=0;
				return;
			}
		}  // Wait for U2270B working
	}
	TH0=TL0=0;  TR0=1;
	IDCardTime=1;
	Dm0=B_RFIN;
	IDB=1;
	i=0;
	Bdone=0; 
	do{
		while(TL0<70);
		if(Dm0!=B_RFIN) return;
		if(0==IDCardTime) return;  // Time Up
		while(TH0<H_M43 || (TH0==H_M43&&TL0<L_M43));
		Btemp=B_RFIN;
		while(Btemp==B_RFIN);
		TR0=0;
		Hi=TH0;  Li=TL0;
		TH0=0;  TL0=10;  TR0=1;
		if(Hi>H_Mth || (Hi==H_Mth && Li>L_Mth)) return;
		IDB++;
		if(1==Bdone){
			DM=DM<<1;  Dm0=B_RFIN;
			if(0==IDB%8){ ID_Card_no[i++]=DM; Sum0+=DM; }
			if(i==7){
				if(0!=IDCarIn)IDCarIn--;
				if(Sum1==Sum0) break;
				else { Sum1=Sum0; Bdone=0; }
			}
		}else{
			Dh1=0;
			DH=DH<<1;  Dh0=Dm7;
			DM=DM<<1;  Dm0=B_RFIN;
			if(0x02==DH && 0x00==DM){
				IDB=10;
				i=0;
				Bdone=1;
				Sum0=0;
			} // Get header
		}
	}while(0!=IDB);      // can't found the header
	TR0=0;
	if(i==7){
		if(Sum2!=Sum0||10<IDCarIn){
         IDCarIn=0;
         Sum2=Sum0;
		b_Card_In=1;
		}
	}
}