實用的51單片機程序

ID:406037 · 發表于 2018-10-7 10:12

分享一個拉幕式數碼顯示技術程序和仿真電路圖源碼：
#include <REGX51.H>

unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,

                           0x66,0x6d,0x7d,0x07,

                           0x7f,0x6f,0x77,0x7c,

                           0x39,0x5e,0x79,0x71,0x00};

/*unsigned char code dispcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,

0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0xff};

*/
unsigned char dispbitcode[]={0xf8,0xf9,0xfa,0xfb,

                           0xfc,0xfd,0xfe,0xff};

unsigned char dispbuf[8]={16,16,16,16,16,16,16,16};

unsigned char dispbitcnt;

unsigned int t02scnt;

unsigned char t5mscnt;

unsigned char u;

unsigned char i;

void main(void)

{

  TMOD=0x02;

  TH0=0x06;

  TL0=0x06;

  TR0=1;

  ET0=1;

  EA=1;

  while(1);

}

void t0(void) interrupt 1 using 0

{

  t5mscnt++;

  if(t5mscnt==4)

{

   t5mscnt=0;

   P3=dispcode[dispbuf[dispbitcnt]];

   P1=dispbitcode[dispbitcnt];

   dispbitcnt++;

   if(dispbitcnt==8)

      {

      dispbitcnt=0;

      }

}

  t02scnt++;

  if(t02scnt==1600)

{

   t02scnt=0;

   u++;

   if(u==9)

      {

      u=0;

      }

   for(i=0;i<8;i++)

      {

      dispbuf[i]=16;

      }

   for(i=0;i<u;i++)

      {

      dispbuf[i]=i+1;

      }

}

}

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實用的51單片機程序