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#include<reg52.h
#define DataPort P
#define KeyPort P1
sbit LATCH1=P2^2
sbit LATCH2=P2^3
unsigned char code dofly_DuanMa[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,
0x77,0x7c,0x39,0x5e,0x79,0x71}
unsigned char code dofly_WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}
unsigned char TempData[10]
unsigned char code password[8]={1,2,3,4,5,6,7,8};
void DelayUs2x(unsigned char t)
void DelayMs(unsigned char t)
void Display(unsigned char FirstBit,unsigned char Num)
unsigned char KeyScan(void)
unsigned char KeyPro(void);
void Init_Timer0(void)
void main (void)
{
unsigned char num,i,j;
unsigned char temp[8];
bit Flag;
Init_Timer0();
while (1)
{
num=KeyPro();
if(num!=0xff)
{
if(i==0)
{
for(j=0;j<8;j++
TempData[j]=0;
}
if(i<8)
{
temp[i]=dofly_DuanMa[num]
for(j=0;j<=i;j++)
TempData[7-i+j]=temp[j];
}
i++;
if(i==9
{
i=0;
Flag=1
for(j=0;j<8;j++
Flag=Flag&&(temp[j]==dofly_DuanMa[password[j]]);
for(j=0;j<8;j++
TempData[j]=0;
if(Flag
{
TempData[0]=0x3f
TempData[1]=0x73
TempData[2]=0x79
TempData[3]=0x54
}
else
{
TempData[0]=0x79
TempData[1]=0x50
TempData[2]=0x50
}
}
}
}void DelayUs2x(unsigned char t)
{
while(--t);
}void DelayMs(unsigned char t)
{
while(t--)
{
DelayUs2x(245);
DelayUs2x(245);
}
}
void Display(unsigned char FirstBit,unsigned char Num)
{
static unsigned char i=0;
DataPort=0
LATCH1=1;
LATCH1=0;
DataPort=dofly_WeiMa[i+FirstBit]
LATCH2=1;
LATCH2=0;
DataPort=TempData[i]
LATCH1=1;
LATCH1=0;
i++;
if(i==Num)
i=0;
}
void Init_Timer0(void)
{
TMOD |= 0x01;
//TH0=0x00;
//TL0=0x00;
EA=1;
ET0=1;
TR0=1;
}void Timer0_isr(void) interrupt 1
{
TH0=(65536-2000)/256;
TL0=(65536-2000)%256;
Display(0,8);
}
unsigned char KeyScan(void)
{
unsigned char cord_h,cord_l
KeyPort=0x0f;
cord_h=KeyPort&0x0f;
if(cord_h!=0x0f)
{
DelayMs(10);
if((KeyPort&0x0f)!=0x0f)
{
cord_h=KeyPort&0x0f;
KeyPort=cord_h|0xf0
cord_l=KeyPort&0xf0
while((KeyPort&0xf0)!=0xf0)
return(cord_h+cord_l)
}
}return(0xff);
}
unsigned char KeyPro(void)
{
switch(KeyScan())
{
case 0x7e:return 0;break
case 0x7d:return 1;break;
case 0x7b:return 2;break;
case 0x77:return 3;break;
case 0xbe:return 4;break;
case 0xbd:return 5;break;
case 0xbb:return 6;break;
case 0xb7:return 7;break;
case 0xde:return 8;break;
case 0xdd:return 9;break;
case 0xdb:return 10;break;
case 0xd7:return 11;break;
case 0xee:return 12;break;
case 0xed:return 13;break;
case 0xeb:return 14;break;
case 0xe7:return 15;break;
default:return 0xff;break;
}
}
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