51单片机电子密码锁设计PCB制版和原理图及仿真和源码 -

#include<reg51.h>
#define GPIO_DIG P0
#define GPIO_KEY P1
sbit JINGBAO=P2^0;
sbit SUO=P2^1;
void KeyDown();
unsigned char DIG_CODE[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
unsigned char A[6],X,Q;
unsigned S,M,H;
unsigned char KeyValue;
void Delay10ms(unsigned int c)
{
unsigned char a,b;
for(;c>0;c--)
for (b=38;b>0;b--)
for(a=13;a>0;a--);
}
void KeyDown(void)
{
char a=0,K,CWCS;
GPIO_DIG=0x00;
GPIO_KEY=0X0f;
if(GPIO_KEY!=0x0f)
{
Delay10ms(1);
if(GPIO_KEY!=0x0f)
{
GPIO_KEY=0X0F;
switch(GPIO_KEY)
{
case(0x07):KeyValue=1;break;//0000 0111
case(0x0b):KeyValue=2;break;//0000 1011
case(0x0d):KeyValue=3;break;//0000 1101
}
GPIO_KEY=0XF0;
switch(GPIO_KEY)
{
case(0xe0):if(KeyValue==1)K=0;if(KeyValue==2)K=10;if(KeyValue==3)K=11;break;
case(0xd0):K=KeyValue;break;
case(0xb0):K=KeyValue+3;break;
case(0x70):K=KeyValue+6;break;
}
if(K<10&&X<6)
{
A[X]=K;
X++;
}
if(K==10&&X>0) X--;//删除功能
if(X==6&&K==11)//输入6位数后，按确认键
{
if(A[0]==6&&A[1]==6&&A[2]==6&&A[3]==6&&A[4]==6&&A[5]==6)//判断和设置密码
{
X=0;//密码正确要将X重新置0
SUO=1;//密码正确，开锁
Delay10ms(2500);//开锁后延时
SUO=0;//延时一定时间后自动上锁
CWCS=0; //将之前的错误次数清零
}
else
{
CWCS++;
P3=0x00;
X=0;
while(CWCS==3)
{
JINGBAO=1;//报警
Delay10ms(5000);//报警延时
JINGBAO=0;//报警解除
CWCS=0;//将之前的错误次数清零
}
}
}
while((a<20)&&(GPIO_KEY!=0xf0))
{
Delay10ms(35);
if(X>=1)
{
Q=A[0];
P0=DIG_CODE[Q];
P3=0x01;
Delay10ms(1);
P3=0x00;
}
if(X>=2)
{
Q=A[1];
P0=DIG_CODE[Q];
P3=0x02;
Delay10ms(1);
P3=0x00;
}
if(X>=3)
{
Q=A[2];
P0=DIG_CODE[Q];
P3=0x04;
Delay10ms(1);
P3=0x00;
}
if(X>=4)
{
Q=A[3];
P0=DIG_CODE[Q];
P3=0x08;
Delay10ms(1);
P3=0x00;
}
if(X>=5)
{
Q=A[4];
P0=DIG_CODE[Q];
P3=0x10;
Delay10ms(1);
P3=0x00;
}
if(X>=6)
{
Q=A[5];
P0=DIG_CODE[Q];
P3=0x20;
Delay10ms(1);
P3=0x00;
}
a++;
}
}
}
else{ //不输入密码时显示时间
if(X==0)
{
P0=DIG_CODE[S%10];
P3=0x20;
Delay10ms(1);
P3=0x00;
P0=DIG_CODE[S/10];
P3=0x10;
Delay10ms(1);
P3=0x00;
P0=DIG_CODE[M%10];
P3=0x08;
Delay10ms(1);
P3=0x00;
P0=DIG_CODE[M/10];
P3=0x04;
Delay10ms(1);
P3=0x00;
P0=DIG_CODE[H%10];
P3=0x02;
Delay10ms(1);
P3=0x00;
P0=DIG_CODE[H/10];
P3=0x01;
Delay10ms(1);
P3=0x00;
}
}
}
void main()
{
JINGBAO=0;
SUO=0;
TMOD=0x01;//0000 0001 16位定时器
EA=1;
ET0=1;
TH0=(65536-1000)/256;//赋初值，设置定时时间1毫秒
TL0=(65536-1000)%256;
TR0=1;
while(1)
{
P3=0x00;
P1=0x0f;
KeyDown();
if(X>=1)
{
Q=A[0];
P0=DIG_CODE[Q];
P3=0x01;
Delay10ms(1);
P3=0x00;
}
if(X>=2)
{
Q=A[1];
P0=DIG_CODE[Q];
P3=0x02;
Delay10ms(1);
P3=0x00;
}
if(X>=3)
{
Q=A[2];
P0=DIG_CODE[Q];
P3=0x04;
Delay10ms(1);
P3=0x00;
}
if(X>=4)
{
Q=A[3];
P0=DIG_CODE[Q];
P3=0x08;
Delay10ms(1);
P3=0x00;
}
if(X>=5)
{
Q=A[4];
P0=DIG_CODE[Q];
P3=0x10;
Delay10ms(1);
P3=0x00;
}
if(X>=6)
{
Q=A[5];
P0=DIG_CODE[Q];
P3=0x20;
Delay10ms(1);
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