点阵图片显示.c

来自「点阵图片显示,在KEIL中编译成功」· C语言 代码 · 共 55 行

#include <AT89X52.H>

unsigned char code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code graph[3][8]={
                                {0x48,0x28,0x3c,0x12,0x3c,0x28,0x48},
                                {0x00,0x38,0x44,0x44,0x44,0x38,0x00,0x00},
								{0x0c,0x12,0x22,0x44,0x22,0x12,0x0c}

                               };
unsigned char count;
unsigned char cnta;

void main(void)
{
  unsigned char i,j;

  TMOD=0x01;
  TH0=(65536-3000)/256;
  TL0=(65536-3000)%256;
  TR0=1;
  ET0=1;
  EA=1;

  while(1)
    {
      if(P1_0==0)
        {
          for(i=5;i>0;i--)
          for(j=248;j>0;j--);
          if(P1_0==0)
            {
              count++;
              if(count==3)
                {
                  count=0;
                }
              while(P1_0==0);
            }
        }
    }
}

void t0(void) interrupt 1 using 0
{
  TH0=(65536-3000)/256;
  TL0=(65536-3000)%256;
  P0=tab[cnta];
  P2=graph[count][cnta];
  cnta++;
  if(cnta==8)
    {
      cnta=0;
    }
}