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標題: 0~999跑表 [打印本頁]

作者: 文字不能 時間: 2017-7-17 14:17
標題: 0~999跑表
#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
sbit s2=P3^4;
sbit s3=P3^5;
sbit s4=P3^6;
sbit s5=P3^7;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71,
0x76,0x79,0x38,0x3f,0};
uchar flag,t0,ge,shi,bai;
uint shu;
void init();
void display(uchar aa,uchar bb,uchar cc);
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
  for(y=110;y>0;y--);
}
void main()
{
init();
while(1)
{
  display(bai,shi,ge);
  if(s2==0)
  {
delay(10);
if(s2==0)
{
TR0=0;
while(!s2)
   display(bai,shi,ge);
TR0=1;
}
  }
  if(s3==0)
  {
delay(10);
if(s3==0)
{
while(!s2)
   display(bai,shi,ge);
TR0=0;
}
  }
  if(s4==0)
  {
delay(10);
if(s4==0)
{
while(!s2)
   display(bai,shi,ge);
TR0=1;
}
  }
  if(s5==0)
  {
delay(10);
if(s5==0)
{
while(!s2)
   display(bai,shi,ge);
shu=0;
}
  }
}
}

void init()
{
TMOD=0x01;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
EA=1;
ET0=1;
TR0=1;
}

void timer0() interrupt 1
{
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
shu++;
if(shu==1000)
  shu=0;
bai=shu/100;
shi=shu%100/10;
ge=shu%10;
}
void display(uchar aa,uchar bb,uchar cc)
{
      dula=1;
  P0=table[aa];
  dula=0;
  P0=0xff;
  wela=1;
  P0=0xfe;
  wela=0;
  delay(1);
      dula=1;
  P0=table[bb];
  dula=0;
  P0=0xff;
  wela=1;
  P0=0xfd;
  wela=0;
  delay(1);

   dula=1;
  P0=table[cc];
  dula=0;
  P0=0xff;
  wela=1;
  P0=0xfb;
  wela=0;
  delay(1);
}

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