八位共阴极数码管动态显示时间,可调节,调节的数闪烁显示

8位共阴极数码管动态显示时间，可调节，调节的数闪烁显示
//本例程为共阴极数码管；
//在普中单片机上通过实验；
//8位数码管动态显示时间，可调节，
//调节时间时，调节的数闪烁显示；
//比较两种闪烁的方法；
#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char
sbit tiaojie=P3^0;
sbit jia=P3^1;
sbit jian=P3^2;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x40};
uchar a,b,num1,num2,flag100ms,flag1s,flagtj;
uchar miao,fen,shi,flagjia,flagjian;
bit flag_1s;
uchar code wela[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
uchar dula[8]={0,0,1,1,2,2,3,3};
void delay(uint z);
void intc();
void keyscan();
void disp();
void main()
{intc();
while(1)
{
keyscan();
disp();
}
}
//================
void intc()
{
TMOD=0x01;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
ET0=1;
EA=1;
TR0=1;
}
void timer0() interrupt 1
{
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
a++;
if(a==10)
{flag100ms=1;}
if(a==100)
{a=0,flag1s=1,miao++;flag_1s=~flag_1s;}
if(miao==60)
{miao=0,fen++;}
if(fen==60)
{fen=0,shi++;
if(shi>12)
shi=1;}
}
//====================
void disp()
{uchar i;
dula[7]=miao%10;
dula[6]=miao/10;
dula[5]=10;
dula[4]=fen%10;
dula[3]=fen/10;
dula[2]=10;
dula[1]=shi%10;
dula[0]=shi/10;
/*switch(flagtj)//第一种方法实现闪烁显示
{case 1: if(flag_1s==1)
{dula[7]=11;dula[6]=11;}
else
{dula[7]=miao%10;
dula[6]=miao/10;}break;
case 2: if(flag_1s==1)
{dula[4]=11;dula[3]=11;}
else
{dula[4]=fen%10;
dula[3]=fen/10;}break;
case 3: if(flag_1s==1)
{dula[1]=11;dula[0]=11;}
else
{dula[1]=shi%10;
dula[0]=shi/10;}break;
case 0:break;
}
for(i=0;i<8;i++)
{ P0=table[dula[i]];
P2=wela[i];
delay(10);
P0=0;
}*/
for(i=0;i<8;i++)//第二种闪烁显示方法
{
switch(flagtj)
{
case 1:
if(i>5&&i<8)
{if(flag_1s==1)
P0=0;
else
P0=table[dula[i]];}
else
P0=table[dula[i]];break;
case 2:
if(i>2&&i<5)
{if(flag_1s==1)
P0=0;
else
P0=table[dula[i]];}
else
P0=table[dula[i]];break;
case 3:
if(i>=0&&i<2)
{if(flag_1s==1)
P0=0;
else
P0=table[dula[i]];}
else
P0=table[dula[i]];break;
case 0:
P0=table[dula[i]];break;
}
P2=wela[i];
delay(10);
P0=0;
}
}
//=====================
void delay(uint z)
{
uint x;
uchar y;
for(x=0;x<z;x++)
for(y=0;y<112;y++);
}
//===========================
void keyscan()
{
if(tiaojie==0)
delay(100);
if(tiaojie==0)
{while(!tiaojie);
flagtj++;
if(flagtj>3)
flagtj=0;
}
if(jia==0)
delay(100);
if(jia==0)
{while(!jia);
flagjia=1;
}
if(jian==0)
delay(100);
if(jian==0)
{while(!jian);
flagjian=1;
}
if(flagtj!=0)
switch(flagtj)
{ case 1: if(flagjia==1)
{flagjia=0;miao++;
if(miao>60)
miao=0;
}
if(flagjian==1) {flagjian=0;
if(miao<1)
miao=1;
miao--;
}
break;
case 2: if(flagjia==1) {flagjia=0;fen++;
if(fen>60)
fen=0;
}
if(flagjian==1) {flagjian=0;
if(fen<1)
fen=1;
fen--;
}
break;
case 3: if(flagjia==1) {flagjia=0;shi++;
if(shi>12)
shi=1;
}
if(flagjian==1) {flagjian=0;
if(shi<1)
shi=1;
shi--;
}
break;
}
}
//===============。