求救單片機(jī)最小系統(tǒng)驅(qū)動(dòng)點(diǎn)陣8*8

ID:250660 · 發(fā)表于 2017-12-3 11:35

我自己用了p1 p2腳。沒有驅(qū)動(dòng)芯片，只有單片機(jī)和最小系統(tǒng)，那位大神可以教教我，給哦程序�？梢燥@示4個(gè)漢字的那種

ID:250660 · 發(fā)表于 2017-12-3 11:37

真的緊急，幫幫忙

ID:222948 · 發(fā)表于 2017-12-3 15:06

#include <reg51.h>
unsigned char code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code digittab[3][8]=
{
      {0x40,0x40,0x44,0x44,0x44,0x44,0x40,0x00},
      {0x00,0x3c,0x42,0x81,0x81,0x81,0x42,0x3c},
      {0x00,0x18,0x24,0x42,0x81,0x42,0x24,0x18},
};
unsigned int timecount;
unsigned char cnta;
unsigned char cntb;
void main(void)
{
      TMOD=0x01;
      TH0=(65536-5000)/256;
      TL0=(65536-5000)%256;
      EA=1;
      TR0=1;
      ET0=1;
      while(1);
}
void t0(void) interrupt 1 using 0
{
      TH0=(65536-5000)/256;
      TL0=(65536-5000)%256;
      P2=tab[cnta];
      P1=digittab[cntb][cnta];
      cnta++;
      if(cnta==8) cnta=0;
      timecount++;
      if(timecount==200)
{
            timecount=0;
            cntb++;
            if(cntb==3) cntb=0;
}
}

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