求各位大神帮我改一下代码

元件

本帖最后由马上有钱有对象于 2014-3-28 21:40 编辑

这是一个超声波测速及霍尔元件测速，测出来的距离在lcd1602显示的程序，有点问题，超声波测速的中断接的是 I T 0，霍尔测速的中断接的是I T1，关键是中断这里我有点不会，求大神帮我改一下
#include
#include
#define uint  unsigned int
#define uchar unsigned char
#define NOP() {_nop_();_nop_();_nop_();_nop_();}
//------LCD??-----
***it LCD_RS=P2^6;
***it LCD_RW=P2^5;
***it LCD_EN=P2^7;
//------?????-------
***it Tx=P3^7;             //超声波测距发射
***it Rx=P3^2;             //接收
uchar code table[]={"distance="};             //LCD?????
uchar temp_dis[]= {"000.0cm"};                               //LCD???

uchar       temp_dis2[]={"cm"};
uchar code table1[]={"rate="};
uchar temp_dis1[]= {"000.0cm/s"};
long int t,distance,rate;
uint i,m,n,z;
uint  h=5, l=5;
uchar bai1,shi1,ge1,bai2,shi2,ge2,bai3,shi3,ge3;
long int s,s1,s2,M1,M2,f;
uchar cache[4]={0,0,0,0};
uchar su[4]={0,0,0,0};
//--------??-------
void delay(uint ms)
{
      uint t;
      while(ms--)
            for(t=0;t<120;t++);
}
//-------?LCD??-------
uchar read_lcd_state()
{
      uchar state;
      LCD_RS=0;
      LCD_RW=1;
      LCD_EN=1;
      _nop_();
      state=P0;
      LCD_EN=0;
      _nop_();
      return state;
}
//-------???------
void lcd_busy_wait()
{
      while((read_lcd_state() & 0x80)==0x80);
      NOP();
}
//----------LCD???----------
void lcd_write_com(uchar com)
{
      lcd_busy_wait();
      LCD_RS=0;             //RS?0?,???,RS?1?,???
      LCD_RW=0;
      P0=com;
      NOP();
      LCD_EN=1;
      NOP();
      LCD_EN=0;
}
//----------LCD???----------
void lcd_write_data(uchar dat)
{
      lcd_busy_wait();
      LCD_RS=1;
      LCD_RW=0;
      P0=dat;
      NOP();
      LCD_EN=1;
      NOP();
      LCD_EN=0;
}
//-------LCD???-------
void lcd_init()
{
      LCD_EN=0;
      lcd_write_com(0x38);                      //LCD??????
      lcd_write_com(0x0c);                      //LCD???/??????
      lcd_write_com(0x06);                      //????????????1,????1
      lcd_write_com(0x01);                      //????
}
//---------????????-----------
void set_lcd_pos(uchar p)
{
      lcd_write_com(p|0x80);
}
//---------??????----------
void lcd_print(uchar p,uchar *s,uint low)
{
      uint num;
      set_lcd_pos(p);
      for(num=0;num       {
            lcd_write_data(s[num]);
            delay(1);
      }
}
void HC05_Init()
{
      Tx=1;                                              //触发脉冲发射口P3^7
      NOP();NOP();NOP();NOP();
      Tx=0;
      distance=0.17*t;                      //距离计算
}
void T1_Init()
{
      TMOD = 0x10;          //定时器1设置为8位自动加载
      ET1=1;                               //开定时器中断
      EA=1;          //开总中断
      IP=0x01;       //设置中断优先级
      TH1 = (65535-50000)/256;       //初始加载50毫秒
      TL1 = (65535-50000)%256;
}

void INT_Init()
{
      IT1 = 1;                      //设外部中断1为下降沿触发
      //EX0 = 1;                         //?????0
      EX1 = 1;                      //开外部中断1Ï11
      EA = 1;

}

void distance_convert(long int dat)
{
      cache[0]=dat/1000;
      cache[1]=dat/100%10;
      cache[2]=dat/10%10;
      cache[3]=dat%10;
      temp_dis[0]=cache[0]+'0';
      temp_dis[1]=cache[1]+'0';
      temp_dis[2]=cache[2]+'0';
      temp_dis[4]=cache[3]+'0';
}
void rate_convert(long int dat)
{
      su[0]=dat/1000;
      su[1]=dat/100%10;
      su[2]=dat/10%10;
      su[3]=dat%10;
      temp_dis1[0]=su[0]+'0';
      temp_dis1[1]=su[1]+'0';
      temp_dis1[2]=su[2]+'0';
      temp_dis1[4]=su[3]+'0';
}

//------------???-----------
void main()
{  int i;
      lcd_init();
      delay(5);
      TMOD=0x19;
      EA=1;                      //¿ª×ÜÖÐ¶Ï
      TR0=1;                      //启动时器
      EX0=1;                      //设置下降沿中断方式
      IT0=1;
//
      while(1)
      {
            HC05_Init();
            distance_convert(distance);


            lcd_print(0x00,table,9);//显示distance=
            lcd_print(0x09,temp_dis,8);//显示测出的的距离
            //lcd_print(0x0e,temp_dis2,5);

            //T1_Init();       //外部中断IT1初始化
      INT_Init();//Íâ²¿ÖÐ¶ÏIT1³õÊ¼»¯
            //TR1=1;//Æô¶¯¶¨Ê±Æ÷1
                     rate_convert(rate);
            lcd_print(0x40,table1,5);//lcd1602显示检测出来的速度
            lcd_print(0x45,temp_dis1,8);
            //lcd_print(0x4e,temp_dis2,5);


      }
      }

//????0
void int0() interrupt 0
{
      t=(TH0*256+TL0);       //计算高电平持续的时间，上升沿到来时开始计时，下降沿到来时借宿这是超声测距的中断
      TH0=0;
      TL0=0;
}

void myrate_INT0(void) interrupt 2
{
      M1=M1++;                      //每中断一次变量+1
}
void timer1() interrupt 3
{ TR1=0;             //Í停止T1       TL1 = (65535-50000)%256;  //求整放在高8位

TL1 = (65535-50000)%256; //求余放在低8位

      n=n+1;                               //n++
      if(n==20)                                        //  //定时1秒（20个50ms为1秒）       {                s1=M1/100.00*3.14*65;       //1???????s1??,??????65MM
         bai3=(s1/100)+48;                   //???????
            shi3=(s1%100/10)+48;                //???????
            ge3=(s1%100%10)+48;       //???????
            n=0;
   rate=bai3*100+shi3*10+ge3;             //计算速度的以上
            s1=0;                //????????s1??
            s2=0;                //????????s2??
            M1=0;                //????0??????
                              //????1??????
      }
      TR1=1;                   //启动T1}