我做的是一个气体报警器，为什么仿真的时候灯不亮，蜂鸣器也不叫，大神求教，困扰甚久

626361893

本帖最后由 626361893 于 2015-6-3 12:35 编辑

下面是我的代码，哪里错了呢。。

#include

#include

#define uchar unsigned char

#define uint unsigned int

uchar code table[]="CH4 Data";

uchar code table1[]="CH4: PPM";

uchar code shu[]="0123456789 ";

sbit lcdrs=P2^0;

sbit lcdrw=P2^1;

sbit lcden=P2^2;

sbit st=P3^5;

sbit oe=P3^6;

sbit eoc=P3^4;

sbit d1=P2^3;

sbit d2=P2^4;

sbit d3=P2^5;

sbit xa=P3^7;

sbit jch4=P2^6;

void ad0809_ch4();

void anjian();

void display_ch4(uint);

uint num,b,wan,qian,bai,shi,ge;

void delay(uchar z)

{

uchar x,y;

for(x=z;x>0;x--)

   for(y=110;y>0;y--);

}

void write_com(uint com)

{

lcdrs=0;

P0=com;

delay(5);

lcden=1;

delay(5);

lcden=0;

}

void write_data(uint date)

{

lcdrs=1;

P0=date;

delay(5);

lcden=1;

delay(5);

lcden=0;

}

void init()

{ d3=1;

lcdrw=0;

lcden=0;

write_com(0x38);

write_com(0x0e);

write_com(0x06);

write_com(0x01);

write_com(0x80);

}

void main()

{

init();

for(num=0;num<16;num++)

  {

      write_data(table[num]);

      delay(1);

}

write_com(0x80+0x40);

for(num=0;num<16;num++)

{

   write_data(table1[num]);

   delay(1);

}

while(1)

{

   anjian();

}

}

void display_ch4(uint s)

{ wan=s/10000;

   qian=s%10000/1000;

   bai=s%1000/100;

   shi=s%100/10;

   ge=s%10;

write_com(0x80+0x45);

write_data(shu[wan]);

write_com(0x80+0x46);

write_data(shu[qian]);

write_com(0x80+0x47);

write_data(shu[bai]);

write_com(0x80+0x48);

write_data(shu[shi]);

write_com(0x80+0x49);

write_data(shu[ge]);

}

void ad0809_ch4()

{

xa=0;

st=0;

st=1;

st=0;

while(!eoc);

oe=1;

b=P1;

oe=0;

b=b*40;

display_ch4(b);

if(b>5000)

{

d1=1;

d2=0;

d3=0;

}

if(b<=5000)

{

d1=0;

d2=1;

d3=1;

}

}

void anjian()

{

if(jch4=0)

{    while(!jch4);

      while(1)

      {

      ad0809_ch4();

      }

}

}