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| #include <reg51.h>
sbit k1_down=P3^1;
sbit k2_down=P3^0;
sbit k3_down=P3^2;
sbit k4_down=P3^3;
unsigned char paused = 0;
unsigned char count=0,miao=0,min=0,hour=0;
unsigned char disp[]={0x14,0x10,0x0c,0x08,0x04,0x00};
unsigned char led[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
void timer_1() interrupt 3
{
TH1=(65536-10000)/256;
TL1=(65536-10000)%256;
TF1=0;
if(k4_down==0) paused = !paused;
if(!paused)
{
count++;
if(count==100)
count=0;
miao++;
if(miao==60)
{
miao=0;min++;
if(min==60)
{
min=0;hour++;
if(hour==24) hour=0;
}
}
}
}
else
{
count++;
if(count==15)
{
count=0;
if (k1_down==0) {
hour = (++hour) % 24;
}
if (k2_down==0) {
min = (++min) % 60;
}
if (k3_down==0) {
miao = (++miao) % 60;
}
}
}
}
void Miao(unsigned char i)
{
unsigned char m;
P2=disp[4];
P0=~led[i/10];
for(m=0;m<100;m++);
P0=0x00;
P2=disp[5];
P0=~led[i%10];
for(m=0;m<100;m++);
P0=0x00;
}
void Min(unsigned char j)
{
unsigned char m;
P2=disp[2];
P0=~led[j/10];
for(m=0;m<100;m++);
P0=0x00;
P2=disp[3];
P0=~led[j%10];
for(m=0;m<100;m++);
P0=0x00;
}
void Hour(unsigned char k)
{
unsigned char m;
P2=disp[0];
P0=~led[k/10];
for(m=0;m<100;m++);
P0=0x00;
P2=disp[1];
P0=~led[k%10];
for(m=0;m<100;m++);
P0=0x00;
}
void main()
{
TMOD=0x10;
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;
ET1=1;
EA=1;
TR1=1;
while(1)
{Miao(miao);Min(min);Hour(hour);}
}
|
