#include<stc12c5a60s2.h>
sbit led=P2^1;
unsigned char code qdm[]={0x03,0x9f,0x25,0x0d,0x99,0x49,0x41,0x1f,0x01,0x09,0xff};
unsigned char code wei[]={0x08,0x04,0x02,0x01};
unsigned char sj[]={0,0,0,0}; //
unsigned char zt=0;
unsigned char c;
unsigned char ss;
unsigned char mm;
unsigned char hh;
void timer0init(void);
void timer1init(void);
void int0init(void);
void int1init(void);
void xianshi(void);
void xsm(void);
void xsh(void);
void delay(unsigned int i) //軟件延時
{
unsigned int j;
while(i--)
for(j=600;j>0;j--);
}
void main(void)
{
int0init();
int1init();
timer0init();
timer1init();
EA=1;
while(1)
{
switch(zt)
{
case 0:TR0=1;xianshi();break; //正常時鐘狀態(tài)
case 1:xsm();break; //調分
case 2:xsh();break; //調時
default:break;
}
}
}
void display()
{
unsigned char i;
for(i=0;i<4;i++)
{
P0=wei[i];
P1=qdm[sj[i]];
delay(1);
}
}
void xianshi(void)
{
sj[0]=hh/10;
sj[1]=hh%10;
sj[2]=mm/10;
sj[3]=mm%10;
}
void xsm(void)
{
sj[0]=10;
sj[1]=10;
sj[2]=mm/10;
sj[3]=mm%10;
}
void xsh(void)
{
sj[0]=hh/10;
sj[1]=hh%10;
sj[2]=10;
sj[3]=10;
}
void int0init(void)
{
IT0=1;
EX0=1;
}
void int1init(void)
{
IT1=1;
EX1=1;
}
void timer0init(void) //50毫秒定時計數(shù)器0初始化
{
TMOD=0x01; //設置定時器模式
TL0=(65536-50000)%256; //設置定時初值
TH0=(65536-50000)/256; //設置定時初值
TF0=0; //打開中斷
ET0=1; //定時計數(shù)器0的中斷開關
}
void timer1init(void) //1毫秒定時計數(shù)器1初始化
{
TMOD=0x10; //設置定時器模式
TL1=(65536-1000)%256; //設置定時初值
TH1=(65536-1000)/256; //設置定時初值
TF1=0; //清除TF1標志
ET1=1; //定時計數(shù)器1的中斷開關
TR1=1; //定時器1開始計時
}
void timer0(void) interrupt 1
{
TL0=(65536-50000)%256; //設置定時初值
TH0=(65536-50000)/256; //設置定時初值
c++;
if(c==20) //累加20次50ms，1s時間到
{
c=0; //清零，方便下一次計數(shù)
led=~led;
ss++;
if(ss==60) //累加60次1s，1分鐘時間到
{
ss=0;
mm++;
if(mm==60) //累加60次1分鐘，1小時時間到
{
mm=0;
hh++;
hh%=24; //累加到23清零
}
}
}
}
void timer1(void) interrupt 3//中斷向量號一一對應
{
TR1=0;
display();
TL1=(65536-1000)%256; //設置定時初值
TH1=(65536-1000)/256; //設置定時初值
TR1=1;
}
void int0(void) interrupt 0
{
TR0=0;
zt++;
if(zt==3)zt=0;
}
void int1(void) interrupt 2
{
switch(zt)
{
case 0:break;
case 1:mm++;if(mm==60)mm=0;break;
case 2:hh++;if(hh==24)hh=0;break;
default:break;
}
} |
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