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標題: 程序運行，單片機數(shù)碼管一直不亮，能不能幫忙改一下程序求幫助 [打印本頁]

作者: jln 時間: 2019-6-18 19:18
標題: 程序運行，單片機數(shù)碼管一直不亮，能不能幫忙改一下程序求幫助
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={0x3f, 0x06, 0x5b, 0x4f,
               0x66, 0x6d, 0x7d, 0x07,
               0x7f, 0x6f, 0x77, 0x7c,
               0x39, 0x5e, 0x79, 0x71};
uchar num1,num2,shi,ge;

void delayms(uint xms)
{
uint i,j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
void display1(uchar m)
{
wela=1;
P0=0xfe;
wela=0;
dula=1;
P0=table[m];
dula=0;
delayms(5);
}
void display(uchar shi,uchar ge)
{
wela=1;
P0=0xfd;
wela=0;
dula=1;
P0=table[shi];
dula=0;
P0=0xff;
delayms(5);

wela=1;
P0=0xfe;
wela=0;
dula=1;
P0=table[ge];
dula=0;
P0=0xff;
delayms(5);
}
void main()
{
uchar temp, key;
TMOD=0x01;
EA=1;
ET0=1;
TH0=(65536-9174)/256;
TL0=(65536-9174)%256;
  while(1)
{
  P3=0xfe;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
  delayms(10);
  temp=P3;
  temp=temp&0xf0;
  if(temp!=0xf0)
  {
delayms(10);
temp=P3;
switch(temp)
{
case 0xee: key=1;
            break;
case 0xde: key=2;
            break;
case 0xbe: key=3;
            break;
case 0x7e: key=4;
            break;
}
while(temp!=0xfe)
{
delayms(5);
TR0=1;
}
while(num1<1000&&TR0==1)
{
   display1(key);
   delayms(10);
   display1(0);
   display(shi,ge);
}
if(num1==1000)
{
num1=0;
TR0=0;
display1(0);
}
  }
}
  }
}
void  T0_time() interrupt 1
{
uchar num1, num2;
TH0=(65536-9174)/256;
TL0=(65536-9174)%256;
num1++;
ge=num2%10;
shi=num2/10;
if(num1==100)
{
  num1=0;
  num2++;
  if(num2==10)
  {
num2=0;
num1=0;
  }
}
}

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