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標(biāo)題: 幫忙看看 51的定時(shí)器點(diǎn)亮數(shù)碼管編程從00-99對(duì)嗎？ [打印本頁(yè)]

作者: zhangxl5496 時(shí)間: 2016-11-19 07:09
標(biāo)題: 幫忙看看 51的定時(shí)器點(diǎn)亮數(shù)碼管編程從00-99對(duì)嗎？
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit dula=P2^6;
sbit wela=P2^7;
uchar num,dunum;
uchar code table_du[]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f
};
display(uint);
delay(uchar);
void main()
{
EA=1;
ET0=1;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
while(1)
{
   if(num==20)
   {
   num=0;
      if(dunum==100);
   dunum=0;
   dunum++;



   }
  display(dunum);
}}
void time0() interrupt 1
{TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
  num++;
}
display(uint dunum)
{
      P0=table_du[dunum/10];
dula=1;
dula=0;
P0=0xfe;
wela=1;
wela=0;
delay(145);

P0=table_du[dunum%10];
dula=1;
dula=0;
P0=0xfd;
wela=1;
wela=0;
delay(145);
return(0);
}
   delay(uchar x)
{
   uchar a,b;
for(a=x;a>0;a--)
for(b=200;b>0;b--);
return(0);
}

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