根据论坛里的教程仿真下但没反应，请问可以帮忙看看是什么问题吗？

2018-7-19 08:49:29 1252 仿真

lcd正常的（注释实在弄不出来，我一直对keil里的字符编码不知怎么弄），代码如下：
#include
#include
#include

#define uint unsigned int
#define uchr unsigned char

void PrintError1();
void LcdDisstr(uchr *p);

***it EN=P1^2;
***it RS=P1^0;
***it RW=P1^1;
***it SDA=P1^3;
***it SCL=P1^4;

uchr code error1a[]="Sorry! Device w-";
uchr code error1b[]="ith no response!";
uchr code str1[16];

uint Intime=0;

uchr T0RH;
uchr T0RL;

bit flag=0;
void delay1ms(uint x)
{
      uchr i;
      uint j;
      for(j=0;j                for(i=0;i<110;i++);
}

void delaynus()
{
      _nop_();
      _nop_();
      _nop_();
}
void Wcom16(uchr com)                   //1602D′Ö¸áî
{
      RS=0;
      RW=0;
      P2=com;
      EN=1;
      delay1ms(5);
      EN=0;
}
void Wdat16(uchr dat)
{
      RS=1;
      RW=0;
      P2=dat;
      EN=1;
      delay1ms(5);
      EN=0;
}

void Init16()
{
      EN=1;
      Wcom16(0x38);
      Wcom16(0x0c);
      Wcom16(0x06);
      Wcom16(0x01);
}

void lcdtest()
{
      Wcom16(0x80);
      Wdat16('t');
      Wdat16('e');
      Wdat16('s');
      Wdat16('t');
      Wdat16('!');
}
/************************************
I2C2¿·Ö
*************************************/
void I2cStart()
{
      SDA=1;
      SCL=1;//    è·±￡SDAoíSCLÎa1
      delaynus();
      SDA=0;
      delaynus();
      SCL=0;
}

void I2cStop()
{
      SCL=0;          //ê×Ïèè·±￡SDAoíSCL¶¼êÇμíμçÆ½
      SDA=0;
      delaynus();
      SCL=1;          //Ïèà-¸ßSCL￡¬Ôùà-¸ßSDA￡»
      delaynus();
      SDA=1;
      delaynus();
}

bit I2cWrite(uchr dat)    //¸ßÎ»ÔúÇ°￡¬μíÎ»Ôúoó
{
      bit ask;
      uchr i;
      for(i=0x80;i!=0;i>>=1)
      {
               if((dat&i)==0)
                     SDA=0;
               else
                     SDA=1;
               delaynus();
               SCL=1;
               delaynus();
               SCL=0;
      }
      SDA=1;
      delaynus();
      SCL=1;
      delaynus();
      ask=SDA;
      delaynus();
      SCL=0;
      return (~ask);
}
uchr I2cReadN()       //I2c×üÏß¶á2ù×÷￡¬2￠·￠Ëí·Çó|′eDÅoÅ
{
      uchr mask;
      uchr dat;

      SDA=1;
      for(mask=0x80;mask!=0;mask>>=1)
      {
               delaynus();
               SCL=1;
               if(SDA==0)
                     dat&=~mask;
               else
                     dat|=mask;    //Îa1ê±￡¬datÖD¶Ôó|Î»ÖÃ1
               delaynus();
               SCL=0;
      }
      SDA=1;    //8Î»êy¾Y·￠Ëííêoó￡¬à-¸ßSDA￡¬·￠Ëí·Çó|′eDÅoÅ
      delaynus();
      SCL=1;
      delaynus();
      SCL=0;

      return dat;
}

uchr I2cReadA()       //I2c×üÏß¶á2ù×÷￡¬2￠·￠Ëíó|′eDÅoÅ
{
      uchr mask;
      uchr dat;

      SDA=1;
      for(mask=0x80;mask!=0;mask>>=1)
      {
               delaynus();
               SCL=1;
               if(SDA==0)
                     dat&=~mask;
               else
                     dat|=mask;    //Îa1ê±￡¬datÖD¶Ôó|Î»ÖÃ1
               delaynus();
               SCL=0;
      }
      SDA=0;    //8Î»êy¾Y·￠Ëííêoó￡¬à-¸ßSDA￡¬·￠Ëíó|′eDÅoÅ
      delaynus();
      SCL=1;
      delaynus();
      SCL=0;

      return dat;
}

void PrintError1()
{
      uchr i;
      Wcom16(0x80);
      for(i=0;i<16;i++)
      {
               Wdat16(error1a);
               delay1ms(5);
      }
      Wcom16(0xc0);
      for(i=0;i<16;i++)
      {
               Wdat16(error1b);
               delay1ms(5);
      }
}

uchr GetadcNum(uchr chn)
{
      uchr num=3;
      I2cStart();
      if(!I2cWrite(0x90))
      {
               PrintError1();
               I2cStop();
               return 0;
      }
      I2cWrite(0x40|chn);
      I2cStart();
      I2cWrite(0x91);
      I2cReadA();
      num=I2cReadN();
      I2cStop();

      return num;
}

void NumtoStr(uchr *p,uchr num)
{
      num=(num*50)/255; //òto¬ò»Î»ê®½øÖÆD¡êy
      p[0]=(num/10)+'0';  //Õûêy2¿·Ö
      p[1]='.';          //D¡êyμã
      p[2]=(num%10)+'0';
      p[3]='v';
      p[4]='\0';
      LcdDisstr(p);
      while(1);
}

void SetT0(uint ms,uchr x,uchr mode)
{
   unsigned long tmp;

   tmp = x*1000000 / 12;    //¶¨ê±Æ÷¼ÆêyÆμÂê
   tmp = (tmp * ms) / 1000;  //¼ÆËãËùDè¼ÆêyÖμ=Ã¿ÃëÖóÆμÂê*Ãëêy￡¨òaÇóμÄmsêy/1000￡©
   tmp = 65536 - tmp;       //×°ÔØÖμ
   tmp = tmp + 12;          //DTÕyÖD¶ÏÏìó|Ñóê± ÖD¶Ïò»°ãÑóê±3-8¸öÖüÆú

   T0RH = (unsigned char)(tmp >> 8);  //×°ÔØ¼ÆêyÆ÷¸ßÎ»
   T0RL = (unsigned char)tmp;
         TMOD&=0xf0;
   TMOD |=mode; //Ä￡ê½ò»
   TH0 = T0RH;    //×°ÔØ3õê¼Öμ
   TL0 = T0RL;
   ET0 = 1;       //¿at0ÖD¶Ï
   TR0 = 1;       //¿aê¼¼Æê±
}

void LcdDisstr(uchr *p)
{
      uchr i;
      Wcom16(0x80);
      for(i=0;i<6;i++)
      {
               Wdat16(p);
               delay1ms(5);
      }
}

void main()
{
      uchr val;
      EA=1;
      SetT0(10,12,0x01);
      Init16();
      while(1)
      {
                     if (flag==1)
                     {
                        flag = 0;
                        val  = GetadcNum(0);                               //¶áè¡í¨μà0μÄÖμ
                        NumtoStr(str1, val);  //½«Öμ×aÎa×Ö·û′®
                        LcdDisstr(str1);
      }
      }
}

void timer1 () interrupt 1
{
      TH0=T0RH;
      TL0=T0RL;
      Intime++;
      if(Intime>=30)
      {
               Intime=0;
               flag=1;
      }
}

哪位大神看看下，谢谢了！！！


这是仿真的硬件连接