基于单片机数码管显示的闹钟 -

/***********************************************************
名称：基于AT89S52数码管系统测试程序
要求：流水灯电路测试，数码管电路测试，独立式键盘电路测试，蜂鸣器电路测试
作者：刘杨
时间：2012年12月12日
电路描述：S1到S8一键一功能;P3口连接LED流水灯；数码管驱动电路采用74HC573；P1口连接独立式键盘；P0口，P2口分别控制数码管位和段；
************************************************************/
#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit S1=P1^0; //流水灯顺时针流水
sbit S2=P1^1; //流水灯逆时针
sbit S3=P1^2; //数码管显示数字0-7
sbit S4=P1^3; //显示数字钟
sbit S5=P1^4; //流水灯逆时针
sbit S6=P1^5; //数码管显示数字0-7
sbit S7=P1^6;
sbit S8=P1^7; //显示数字钟
sbit P3_1=P3^1; //蜂鸣器报警控制端
uchar code discode[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xBF};
uchar code discode0[]={0x92,0x86,0xC6,0xC6,0xC1,0x92};
uchar code discode1[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x3F};
uchar disbitcode[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
uchar disbuf[8]={0,0,10,0,0,10,0,0};
uchar disbuf0[8]={0,0,10,0,0,10,0,0};
uchar disbuf1[8]={0,0,10,0,0,10,0,0};//显示缓冲区
uchar cent,second,minite,hour,second1,minite1,hour1;
/*函数申明*/
void display(void);
void ini(void);
void t0(void);
/*************延时程序**************/
void delay(uint m)
{
while(--m);
}
/*************初始化程序**************/
void ini(void)
{
TMOD=0x01;
TH0=(65536-46082)/256;
TL0=(65536-46082)%256;
ET0=1;
EA=1;
}
/************缓存程序****************/
void hccx()
{
disbuf1[0]=disbuf[0]=second%10;
disbuf1[1]=disbuf[1]=second/10;
disbuf1[3]=disbuf[3]=minite%10;
disbuf1[4]=disbuf[4]=minite/10;
disbuf1[6]=disbuf[6]=hour%10;
disbuf1[7]=disbuf[7]=hour/10;
}
/***********暂停程序****************/
void zd (void)
{
uchar i;
//hccx();
for(i=0;i<8;i++)
{
P0=discode[disbuf[i]];
P2=disbitcode[i];
delay(100);
}
}
/************闹钟初始化程序*********/
void naozhong (void)
{
uchar i;
disbuf0[0]=second1%10; //更新显示缓冲区
disbuf0[1]=second1/10;
disbuf0[3]=minite1%10;
disbuf0[4]=minite1/10;
disbuf0[6]=hour1%10;
disbuf0[7]=hour1/10;
for(i=0;i<8;i++)
{
P0=discode[disbuf0[i]];
P2=disbitcode[i];
delay(100);
}
}
/***********开机显示画面********/
void shuma()
{
while((S1==1)&&(S2==1))
{
P0=0X8C;
P2=0X01;
}
}
/*************显示程序**************/
void display(void)
{
uchar i;
for(i=0;i<8;i++)
{
P0=discode[disbuf[i]];
P2=disbitcode[i];
delay(100);
}
}
/*******设置成功画面***********/
void succer(void)
{
uchar i;
disbuf0[0]=second1%10; //更新显示缓冲区
disbuf0[1]=second1/10;
disbuf0[3]=minite1%10;
disbuf0[4]=minite1/10;
disbuf0[6]=hour1%10;
disbuf0[7]=hour1/10;
for(i=0;i<6;i++)
{
P0=discode0[i];
P2=disbitcode[i];
delay(100);
}
}
/**************闹钟显示程序*********/
void naoxian(void)
{
uchar i;
for(i=0;i<8;i++)
{
P0=0xff;
P0=discode1[disbuf[i]];
P2=disbitcode[i];
delay(100);
}
}
/***********调整显示程序**********/
void tzcx0()
{
uchar i;
for(i=0;i<8;i++)
{
P0=discode[disbuf1[i]];
P2=disbitcode[i];
delay(100);
}
}
/*************中断程序**************/
void t0(void) interrupt 1 using 0 //用第0组寄存器
{
cent++;
if(cent==20)
{
cent=0;
second++;
if(second==60)
{
second=0;
minite++;
if(minite==60)
{
minite=0;
hour++;
if(hour==24)
{
hour=0;
}
}
}
disbuf[0]=second%10; //更新显示缓冲区
disbuf[1]=second/10;
disbuf[3]=minite%10;
disbuf[4]=minite/10;
disbuf[6]=hour%10;
disbuf[7]=hour/10;
}
TH0=(65536-46082)/256;
TL0=(65536-46082)%256;
}
/************按键扫描程序*****************/
uchar keyscan()
{
uchar tmp; //列号，行号
P1=0xff; //发全行0扫描码
if((P1&0xff)!=0xff) //若有键按下
{
delay(1000); // 延时去抖
if((P1&0xff)!=0xff) //有键按下
{
tmp=(P1&0xff);
do{}while((P1&0xff)!=0xff);
tmp=~tmp;
return (tmp); //还回键值
}
}
return (0); //无键按下,还回0
}
/**************主程序************/
void main(void)
{
uchar i,a=0,b=0,c=0,d=0,e=0,f=0,v,nu=0,num=0,n=0;
ini();
shuma();
v=keyscan();
if(v==1||v==2||v==16||v==32||v==64||v==128)
{
while(1)
{
v=keyscan();
switch(v)
{
case 1:
P3=0xff;
P2=0x00;
TR0=1; /*开始时钟测试*/
while(v==1||v==0)
{
delay(10);
display();
v=keyscan(); //调键扫描程序
}
break;
case 2:
while(v==2||v==0) /*暂停测试*/
{
ET0=0;
delay(10);
hccx();
zd();
v=keyscan(); //调键扫描程序
}
break;
case 16:
while(v==16||(v==0)) /*调整测试*/
{
if(num<3) num++;
else {num=1;}
v=0;
while((num==1)&&(v==0))
{
hccx();
while(a==0)
{
for(i=0;i<8;i++)
{
P0=discode[disbuf1[i]];
P2=disbitcode[i];
delay(100);
}
a=keyscan();
}
while(a==4) /*数码管显示数字0-7测试*/
{
second++;
if(second==60)
{
second=0;
minite++;
if(minite==60)
{
minite=0;
hour++;
if(hour==24)
{
hour=0;
}
}
}
hccx();
tzcx0(); //扫描间隙延时
a=keyscan(); //调键扫描程序
}
while(a==8) /*显示数字钟测试*/
{
second--;
if(second<=0)
{
second=59;
minite--;
if(minite<=0)
{
minite=59;
hour--;
if(hour<=0)
{
hour=23;
}
}
}
hccx();
tzcx0(); //扫描间隙延时
a=keyscan(); //调键扫描程序
}
v=keyscan();
}
while(num==2&&v==0)
{
hccx();
while(b==0)
{
for(i=0;i<8;i++)
{
P0=discode[disbuf1[i]];
P2=disbitcode[i];
delay(100);
}
b=keyscan();
}
while(b==4) /*数码管显示数字0-7测试*/
{
minite++;
if(minite==60)
{
minite=0;
hour++;
if(hour==24)
{
hour=0;
}
}
hccx();
tzcx0(); //扫描间隙延时
b=keyscan(); //调键扫描程序
}
while(b==8) /*显示数字钟测试*/
{
minite--;
if(minite<=0)
{
minite=59;
hour--;
if(hour<=0)
{
hour=23;
}
}
hccx();
tzcx0(); //扫描间隙延时
b=keyscan(); //调键扫描程序
}
v=keyscan();
}
while(num==3&&v==0)
{
hccx();
while(c==0)
{
for(i=0;i<8;i++)
{
P0=discode[disbuf1[i]];
P2=disbitcode[i];
delay(100);
}
c=keyscan();
}
while(c==4) /*数码管显示数字0-7测试*/
{
hour++;
if(hour==24)
{
hour=0;
}
hccx();
tzcx0(); //扫描间隙延时
c=keyscan(); //调键扫描程序
}
while(c==8) /*显示数字钟测试*/
{
hour--;
if(hour<=0)
{
hour=23;
}
hccx();
tzcx0(); //扫描间隙延时
c=keyscan(); //调键扫描程序
}
v=keyscan();
}
}
break;
case 32: /*数码管各段循环测试*/
while(v==32||v==0)
{
ET0=1;
num=0;
a=b=c=0;
display();
v=keyscan(); //调键扫描程序
}
break;
case 64:
while(v==64||v==0)
{
if(nu<3) nu++;
else {nu=1;}
v=0;
while(nu==1&&v==0)
{
while(d==0)
{
naozhong();
d=keyscan();
}
while(d==4) /*数码管显示数字0-7测试*/
{
second1++;
if(second1==60)
{
second1=0;
minite1++;
if(minite1==60)
{
minite1=0;
hour1++;
if(hour1==24)
{
hour1=0;
}
}
}
naozhong();
//naoxian(); //扫描间隙延时
d=keyscan(); //调键扫描程序
}
while(d==8) /*显示数字钟测试*/
{
second1--;
if(second1<=0)
{
second1=59;
minite1--;
if(minite1<=0)
{
minite1=59;
hour1--;
if(hour1<=0)
{
hour1=23;
}
}
}
naozhong();
//naoxian(); //扫描间隙延时
d=keyscan(); //调键扫描程序
}
v=keyscan();
}
while(nu==2&&v==0)
{
while(e==0)
{
naozhong();
e=keyscan();
}
while(e==4) /*数码管显示数字0-7测试*/
{
minite1++;
if(minite1==60)
{
minite1=0;
hour1++;
if(hour1==24)
{
hour1=0;
}
}
naozhong();
// naoxian(); //扫描间隙延时
e=keyscan(); //调键扫描程序
}
while(e==8) /*显示数字钟测试*/
{
minite1--;
if(minite1<=0)
{
minite1=59;
hour1--;
if(hour1<=0)
{
hour1=23;
}
}
naozhong();
//naoxian(); //扫描间隙延时
e=keyscan(); //调键扫描程序
}
v=keyscan();
}
while(nu==3&&v==0)
{
while(f==0)
{
naozhong();
f=keyscan();
}
while(f==4) /*数码管显示数字0-7测试*/
{
hour1++;
if(hour1==24)
{
hour1=0;
}
naozhong();
//naoxian(); //扫描间隙延时
f=keyscan(); //调键扫描程序
}
while(f==8) /*显示数字钟测试*/
{
hour1--;
if(hour1<=0)
{
hour1=23;
}
naozhong();
//naoxian(); //扫描间隙延时
f=keyscan(); //调键扫描程序
}
v=keyscan();
}
}
break;
case 128:
P3=0XFF;
while(v==128||v==0)
{
if(n<2) n++;
else { n=1;}
v=0;
while(n==1&&v==0)
{
succer();
v=keyscan();
}
while(n==2&&v==0)
{
hccx();
if(( disbuf0[0]==disbuf[0])&&(disbuf0[1]==disbuf[1])&&(disbuf0[3]==disbuf[3])&&(disbuf0[4]==disbuf[4])&&(disbuf0[6]==disbuf[6])&&(disbuf0[7]==disbuf[7]))
P3_1=0;
naoxian();
v=keyscan();
}
}
break;
}
}
}
}

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