能否把这个程序详细讲解一下求帮助 -

标题: 能否把这个程序详细讲解一下求帮助 [打印本页]

作者: 112113xwx 时间: 2019-11-25 16:45
标题: 能否把这个程序详细讲解一下求帮助
#include<reg51.h>
sbit rs=P2^2;
sbit rw=P2^3;
sbit en=P2^4;
sbit dula=P2^5;
sbit wela=P2^7;
#define uint unsigned int
#define uchar unsigned char
uint n,aa,bb,aa1,aa2,aa3,bb1,bb2,bb3;
void delay(uint z)
{       uint x,y;
      for(x=z;x>0;x--)
         for(y=110;y>0;y--);
}
void wcom(uchar b)
{rs=0;
rw=0;
en=1;
P0=b;
delay(5);
en=0;
}
void wdata(uchar a)
{rs=1;
rw=0;
en=1;
P0=a;
delay(5);
en=0;
}
void init()
{
      dula=0;
      wela=0;
      en=0;
      wcom(0x38);
      wcom(0x0c);
      wcom(0x06);
      wcom(0x01);
      wcom(0x80);
      EA=1;
      EX1=1;
      IT1=1;
      EX0=1;
      IT0=1;
//       PX1=1;
//       PX0=0;
}
void main()
{
      init();
      while(1)
      {
            wcom(0x80);

            wdata('y');
            delay(5);
            wdata('y');
            delay(5);
            wdata('q');
            delay(5);
            wdata('x');
            delay(5);
            wcom(0xc0);
            bb1=bb/100;
            bb2=bb%100/10;
            bb3=bb%10;
            wdata(bb1+0x30);
            delay(5);
            wdata(bb2+0x30);
            delay(5);
            wdata(bb3+0x30);
            delay(100);
            P1=0xfe;
            delay(500);
            P1=0xfd;
            delay(80);
            P1=0xfb;
            delay(80);
            P1=0xf7;
            delay(80);
            P1=0xef;
            delay(80);
            P1=0xdf;
            delay(80);
            P1=0xbf;
            delay(80);
            P1=0x7f       ;
         }

}
void ISR_INT0(void) interrupt 0
{
  aa++;

  dula=0;

}
void ISR_INT1(void) interrupt 2
{
      bb++;
}

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