單片機時鐘程序數(shù)碼管顯示會閃爍，怎么才可以解決閃爍問題啊

ID:333716 · 發(fā)表于 2019-5-15 10:05

#include "reg51.h"
typedef unsigned int u16;
typedef unsigned char u8;
int shi=0,fen=0,s0=0,s1=0,bittime=0,bitdisplay=0;
unsigned char Tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
//P2=Tab[s1];P3=0Xef;
void delay(u16 i)
{
while(i--);
}

void timer0(void) interrupt 1  using 0
{
TH0=(65536-50000)/256;TL0=(65536-50000)/256;
  switch(bitdisplay)
  {
case 0:P2=Tab[s0];P3=0Xdf;break;
   case 1:P2=Tab[s1];P3=0Xef;break;


  }
  bitdisplay++;
  bittime++;
  if(bitdisplay==2){bitdisplay=0;}

}

void main(void)
{

  TMOD=0X01;TH0=(65536-50000)/256;TL0=(65536-50000)/256;
  EA=1;ET0=1;TR0=1;
  while(1)
  {

  if(bittime==20)
   {
bittime=0;
s0++;
}
if(s0==10)
   {
s0=0;
   s1++;

}
  }
}