#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit du=P2^6;
sbit we=P2^7;
sbit k1=P3^0;
sbit k2=P3^1;
sbit k3=P3^2;
sbit k4=P3^3;
uchar code table1[]={0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71}; //0~F 共陰極無小數點
uchar code table2[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
void init();
void keyscan();
void delay(uint);
void display(uint);
uint z;
uchar num,flag;
void main()
{
init();
while(1)
{
display(z);
keyscan();
}
}
void init()
{
EA=1;
TMOD=0x01;
TH0=(65536-917)/256;
TL0=(65536-917)%256;
ET0=1;
TR0=1;
flag=0;
z=0;
}
void keyscan()
{
if(k1==0)
{
delay(10);
if(k1==0)
{
EA=0;
while(!k1);
}
}
else
EA=1;
}
void display(uint z)
{
uchar bai,shi,ge;
bai=z/100;
shi=z%100/10;
ge=z%100&10;
du=1;
P0=table1[bai];
du=0;
P0=0xff;
we=1;
P0=0xfe;
we=0;
delay(2);
du=1;
P0=table1[shi];
du=0;
P0=0xff;
we=1;
P0=0xfd;
we=0;
delay(2);
du=1;
P0=table1[ge];
du=0;
P0=0xff;
we=1;
P0=0xfb;
we=0;
delay(2);
}
void T0_time() interrupt 1
{
TH0=(65536-917)/256;
TL0=(65536-917)%256;
num++;
if(num==10)
{
num=0;
z++;
if(z==999)
z=0;
}
}
void delay(uint x)
{
uint i,j;
for(i=x;i>0;i--)
for(j=124;j>0;j--);
}
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#include<reg52.h>#define uchar unsigned char
#define uint unsigned int
sbit du=P2^6;
sbit we=P2^7;
sbit k1=P3^0;
sbit k2=P3^1;
sbit k3=P3^2;
sbit k4=P3^3;
uchar code table1[]={0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71}; //0~F 共陰極無小數點
uchar code table2[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
void init();
void keyscan();
void delay(uint);
void display(uint);
uint z;
uchar num,flag;
void main()
{
init();
while(1)
{
display(z);
keyscan();
}
}
void init()
{
EA=1;
TMOD=0x01;
TH0=(65536-917)/256;
TL0=(65536-917)%256;
ET0=1;
TR0=1;
flag=0;
z=0;
}
void keyscan()
{
if(!k1)
{
delay(10);
if(!k1)EA=!EA;
while(!k1);
}
}
void display(uint z)
{
uchar bai,shi,ge;
bai=z/100;
shi=z/10%10;
ge=z%10;
we=1;
P0=table2[0];
we=0;
du=1;
P0=table1[bai];
du=0;
P0=0xff;
delay(2);
we=1;
P0=table2[1];
we=0; du=1;
P0=table1[shi];
du=0;
P0=0xff;
delay(2);
we=1;
P0=table2[2];
we=0;
du=1;
P0=table1[ge];
du=0;
P0=0xff;
delay(2);
}
void T0_time() interrupt 1
{
TH0=(65536-917)/256;
TL0=(65536-917)%256;
if(++num>=10)
{
num=0;
if(++z>=999) z=0;
}
}
void delay(uint x)
{
uint i,j;
for(i=x;i>0;i--)
for(j=124;j>0;j--);
}
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標籤：單片機/工控