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#include<reg52.h>
#include<intrins.h>
#include<absacc.h>
sbit kgnxz=P3^0; //功能選擇鍵，按一次設(shè)定時(shí)間，按兩次設(shè)定鬧鐘時(shí)間，按三次又顯示時(shí)間表
sbit ksec=P3^1;//調(diào)整秒
sbit kmin=P3^2;//調(diào)整分
sbit khour=P3^3;//調(diào)整時(shí)
sbit kzh=P3^4;//24與12小時(shí)制轉(zhuǎn)換
sbit bear=P1^0;//蜂鳴器控制口
unsigned char secshi=0,secge=0,minshi=0,minge=0,hourshi=0,hourge=0,flag=0,//flag是按鍵的計(jì)數(shù)
secshi1=0,secge1=0,minshi1=0,minge1=0,hourshi1=0,hourge1=0;//定義存儲(chǔ)時(shí)間和鬧鐘時(shí)分秒的個(gè)位和十位
unsigned int num=0,sec=0,min=0,hour=0,sec1=30,min1=0,hour1=1, num1=0;//定義時(shí)間和鬧鐘的時(shí)分秒
unsigned char code table[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//數(shù)碼管段控口
void keyscan();//鍵盤掃描函數(shù)
void display();//時(shí)鐘顯示函數(shù)
void display1();//鬧鐘顯示函數(shù)
void clock();//鬧鐘函數(shù)即蜂鳴器函數(shù)
/***延時(shí)函數(shù)****/
void delay(unsigned char z)
{unsigned char x,y;
for(x=z;x>0;x--)
for(y=255;y>0;y--);
}
/***中斷函數(shù)****/
void time0() interrupt 1
{num++;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
if(num==20)
{num=0;
sec++;
if(sec==60)
{sec=0;
min++;
if(min==60)
{min=0;
hour++;
if(hour==24)
{hour=0;
}
}
}
display(); }
}
/******時(shí)鐘顯示函數(shù)******/
void display()
{
secge=sec%10;
secshi=sec/10;
minge=min%10;
minshi=min/10;
hourge=hour%10;
hourshi=hour/10;
P2=0xfe;
P0=table[secge];
delay(5);
P2=0xfd;
P0=table[secshi];
delay(5);
P2=0xfb;
P0=0x40;
delay(5);
P2=0xf7;
P0=table[minge];
delay(5);
P2=0xef;
P0=table[minshi];
delay(5);
P2=0xdf;
P0=0x40;
delay(5);
P2=0xbf;
P0=table[hourge];
delay(5);
P2=0x7f;
P0=table[hourshi];
delay(5);
}
/*****鬧鐘顯示函數(shù)****/
void display1()
{
secge1=sec1%10;
secshi1=sec1/10;
minge1=min1%10;
minshi1=min1/10;
hourge1=hour1%10;
hourshi1=hour1/10;
P2=0xfe;
P0=table[secge1];
delay(10);
P2=0xfd;
P0=table[secshi1];
delay(15);
P2=0xfb;
P0=0x40;
delay(15);
P2=0xf7;
P0=table[minge1];
delay(15);
P2=0xef;
P0=table[minshi1];
delay(15);
P2=0xdf;
P0=0x40;
delay(15);
P2=0xbf;
P0=table[hourge1];
delay(15);
P2=0x7f;
P0=table[hourshi1];
delay(15);
}
/*****鍵盤掃描*********/
void keyscan()
{if(kgnxz==0) //功能選擇鍵是否按下
{ delay(10);//延時(shí)消抖
if(kgnxz==0)//再次判斷鍵是否按下
{flag++;} //計(jì)數(shù)，功能選擇鍵按鍵次數(shù)加一
while(!kgnxz);} //釋放鍵
if(flag==1)//功能選擇鍵
{if(ksec==0)//秒調(diào)整鍵
{delay(10);//延時(shí)消抖
if(ksec==0)//再次判斷鍵是否按下
{sec++;//秒加加
if(sec>=60)//如果秒大于60
sec=0;//秒清零
}
while(ksec==0)//釋放鍵
display();}
if(kmin==0)
{delay(10);
if(kmin==0)
{min++;
if(min>=60)
min=0;
}
while(kmin==0)
display();
}
if(khour==0)
{delay(10);
if(khour==0)
{hour++;
if(hour==24)
hour=0;
}
while(khour==0)
display();
}
}
if(flag==2)//鬧鐘調(diào)整
{if(ksec==0)
{delay(5);
if(ksec==0)
{sec1++;
if(sec1==60)
sec1=0;}
while(!ksec)
{display1();delay(50);}
}
if(kmin==0)
{delay(5);
if(kmin==0)
{min1++;
if(min1==60)
min1=0;}
while(!kmin)
{display1();}
}
if(khour==0)
{delay(5);
if(khour==0)
{hour1++;
if(hour1==24)
hour1=0;}
while(!khour)
{display1();} } }}
/*****蜂鳴器*********/
void clock()
{ unsigned int i;
for(i=1000;i>0;i--)
{bear=1;
P1=0xfe;
delay(10);
bear=0;
P1=0xff;
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