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#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit P2_0=P2^0;
sbit P2_1=P2^1;
sbit P2_2=P2^2;
sbit P2_3=P2^3;
sbit key1=P3^5;
sbit key2=P3^4;
sbit key3=P3^3;
sbit key4=P3^2;
sbit beep=P3^6;
uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,
0xf8,0x80,0x90};
uchar num1,num2,num3,num4,num5; //num1時，num2分，num3中斷1中間數，num4中斷2中間數，
uchar num6,num7,num8,num9; //num5秒 ,num6計時器秒，num7計時器分 ,num8鬧鐘時，num9鬧鐘分
uint a;
void TIME0_init();
void TIME1_init();
void jishi_init();
void naozhong_init();
void delayms(uchar x);
void display_shizhong(uchar num1,uchar num2);
void display_jishu(uchar num7,uchar num6);
void display_naozhong(uchar num8,uchar num9);
void keyscan1();
void keyscan2();
void keyscan3();
void clear_screen ();
void alarm();
void main()
{
TIME0_init();
TIME1_init();
while(1)
{
keyscan1();
display_shizhong(num1,num2);
if(num2==60)
{
num2=0;
num1+=1;
}
alarm();
}
}
void TIME0_init()
{
TMOD|=0x01;
TH0=0;
TL0=0;
EA=1;
ET0=1;
TR0=1;
}
void TIME1_init()
{
TMOD|=0x10;
TH1=0;
TL1=0;
EA=1;
ET1=1;
TR1=1;
}
void T0_time()interrupt 1//時鐘
{
TH0=0;
TL0=0;
num4++;
if(num4==14)
{
num4=0;
num5++;
if(num5==60)
num2+=1;
num5=0;
}
}
void T1_time()interrupt 3//秒表
{
TH1=0;
TL1=0;
num3++;
if(num3==14)
{
num3=0;
num6++;
if(num6==60)
{
num7+=1;
num6=0;
}
}
}
void delayms(uchar x)
{
uchar j,k;
for(j=x;j>0;j--)
for(k=110;k>0;k--);
}
void display_shizhong(uchar num1,uchar num2)//時鐘顯示
{
uint shi1,shi2,fen1,fen2;
shi1=num1/10;
shi2=num1%10;
fen1=num2/10;
fen2=num2%10;
P0=table[shi1];
P2_0 = 0;
delayms(5);
P2_0 = 1;
P0=table([shi2]& 0x7f);
P2_1 = 0;
delayms(5);
P2_1 = 1;
P0=table[fen1];
P2_2 = 0;
delayms(5);
P2_2 = 1;
P0=table[fen2];
P2_3 = 0;
delayms(5);
P2_3 = 1;
}
void display_jishu(uchar num7,uchar num6)//秒表顯示
{
uint shi3,shi4,fen3,fen4;
shi3=num7/10;
shi4=num7%10;
fen3=num6/10;
fen4=num6%10;
P0=table[shi3];
P2_0 = 0;
delayms(5);
P2_0 = 1;
P0=table[shi4];
P2_1 = 0;
delayms(5);
P2_1 = 1;
P0=table[fen3];
P2_2 = 0;
delayms(5);
P2_2 = 1;
P0=table[fen4];
P2_3 = 0;
delayms(5);
P2_3 = 1;
}
void display_naozhong(uchar num8,uchar num9)//鬧鐘顯示
{
uint shi5,shi6,fen5,fen6;
shi5=num8/10;
shi6=num8%10;
fen5=num9/10;
fen6=num9%10;
P0=table[shi5];
P2_0 = 0;
delayms(5);
P2_0 = 1;
P0=table[shi6];
P2_1 = 0;
delayms(5);
P2_1 = 1;
P0=table[fen5];
P2_2 = 0;
delayms(5);
P2_2 = 1;
P0=table[fen6];
P2_3 = 0;
delayms(5);
P2_3 = 1;
}
void keyscan1()//key1按下小時加1，key2按下分鐘加1，key3長按清零且設置鬧鐘，key4長按清零且開始計時
{
if(key1==0)
{
delayms(10);
if(key1==0)
{
num1++;
if(num1==24)
{
num1=0;
}
while(!key1);
}
}
if(key2==0)
{
delayms(10);
if(key2==0)
{
num2++;
if(num2==60)
{
num2=0;
num1+=1;
}
while(!key2);
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
display_shizhong(num1,num2);
while(!key3);
}
}
if(key4==0)
{
delayms(10);
if(key4==0)
{
clear_screen ();
while(!key4)
{
display_jishu(num7,num6);
keyscan2();
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
clear_screen ();
while(!key3)
{
display_jishu(num8,num9);
keyscan3();
while(!key2);
}
}
}
}
}
void clear_screen ()//清零
{
P0=table[0];
P2_0 = 0;
delayms(5);
P2_0 = 1;
P0=table[0];
P2_1 = 0;
delayms(5);
P2_1 = 1;
P0=table[0];
P2_2 = 0;
delayms(5);
P2_2 = 1;
P0=table[0];
P2_3 = 0;
delayms(5);
P2_3 = 1;
}
void keyscan2()//開始計時
{
if(key1==0)
{
delayms(10);
if(key1==0)
{
TR1=~TR1;
while(!key1);
}
}
}
void keyscan3()//設置鬧鐘
{
if(key1==0)
{
delayms(10);
if(key1==0)
{
num8++;
if(num8==24)
{
num8=0;
}
while(!key1);
}
}
if(key2==0)
{
delayms(10);
if(key2==0)
{
num9++;
if(num9==60)
{
num9=0;
num8+=1;
}
while(!key2);
}
}
}
void alarm()//鬧鐘響
{
if(num1==num8&&num2==num9)
while(a<1000)
{
beep=0;
delayms(10) ;
beep=1;
delayms(10);
a--;
}
}

復制代碼

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