使用proteus仿真数控恒流源的时候遇到real time simulation failed to start -

#include<reg52.h> //52系列单片机头文件
#include<math.h>
#include <intrins.h>
#define uchar unsigned char //宏定义
#define uint unsigned int
sbit we1=P3^4;
sbit we2=P3^5;
sbit we3=P3^6;
sbit we4=P3^7;
sbit key1=P2^2; //输入显示和采样显示切换
sbit key2=P2^3; // 电流输出使能
sbit key3=P2^4; //+100MA
sbit key4=P2^5; //+10MA
sbit key5=P2^6; //+1MA
sbit key6=P2^7; //-1MA
sbit DAIN=P0^0; //DAC 数据输出
sbit DACS=P0^1; //DAC 片选
sbit DAOUT=P0^2; //DAC数据输入
sbit CLK=P0^3; //ADC DAC CLK
sbit ADOUT=P0^4; //ADC 数据输入
sbit BUSY=P0^5; //ADC
sbit CON=P0^6; //ADC
sbit SPK=P2^1; //speak
uchar fo1,fo2,fo3,fo4; //显示值
uint DATA1=0;
uint T_Count=0;
uint CYS=0;
uint KA=0;
uint DAT=0;
uchar code table[]={ //数组定义
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};
void delays(uint); //子函数申明
void keys(); //子函数申明
void LED(); //子函数申明
void adc(); //子函数申明
void dac(); //子函数申明
void speak(); //子函数申明
void main()
{
TMOD = 0x00;
TH0 = (8192-3000)/32;
TL0 = (8192-3000)%32;
IE = 0x82;
TR0 = 1;
key1=1;
key2=1;
key3=1;
key4=1;
key5=1;
key6=1;
fo1=0;
fo2=0;
fo3=0;
fo4=0;
while(1)
{
keys(); //按键函数返回值为KA变量
dac(); //DAC函数
adc(); //ADC采样返回值为DATA1
LED();
delays(20);
speak();
}
}
/*---------主函数-----------------------------------------------*/
void delays(uint ns)
{
uint i,j;
for(i=ns;i>0;i--)
for(j=100;j>0;j--);
}
/*----------------延时程序-----------------------------------------------*/
void keys() //按键函数
{
if(key1==0) //kay1 +100MA
{
delays(1); //延时消抖
if(key1==0)
while(!key1);//等待松手
if(KA>=2000)
KA=2000;
else
KA=KA+100;
}
if(key2==0) //kay2 -100MA
{
delays(1); //延时消抖
if(key2==0)
while(!key2);//等待松手
if(KA<=100)
KA=0;
else
KA=KA-100;
}
if(key3==0) //kay3 +10MA
{
delays(1); //延时消抖
if(key3==0)
while(!key3);//等待松手
if(KA>=2000)
KA=2000;
else
KA=KA+10;
}
if(key4==0) //kay4 -10MA
{
delays(1); //延时消抖
if(key4==0)
while(!key4);//等待松手
if(KA<=10)
KA=0;
else
KA=KA-10;
}
if(key5==0) //kay5 +1
{
delays(1); //延时消抖
if(key5==0)
while(!key5);//等待松手
if(KA>=2000)
KA=2000;
else
KA=KA+1;
}
if(key6==0) //kay2 -1
{
delays(1); //延时消抖
if(key6==0)
while(!key6);//等待松手
if(KA==0)
KA=0;
else
KA=KA-1;
}
}
/*----------------按键程序-----------------------------------------------*/
/*----------------数码管显示程序-----------------------------------------------*/
void LED()
{
DAT=KA;
fo1=(DAT/1000)%10;
fo2=(DAT/100)%10;
fo3=(DAT/10)%10;
fo4=DAT%10;
we1=0;
P1=table[fo1+10];
delays(2);
we1=1;
we2=0;
P1=table[fo2];
delays(2);
we2=1;
we3=0;
P1=table[fo3];
delays(2);
we3=1;
we4=0;
P1=table[fo4];
delays(2);
we4=1;
}
/*----------------DAC输出程序-----------------------------------------------*/
void dac() // DAC输出
{
uchar data i;
uint data j ;
j=KA*1.3; //1.2为系数
CLK=0;
DACS=0;
for(i=0;i<16;i++)
{
DAIN=j&0x8000;
CLK=1;
CLK=0;
j=j<<1;
}
DACS=1;
DAIN=1;
CLK=1;
}
/*----------------ADC采样函数程序-----------------------------------------------*/
void adc()
{
uchar data r;
CON=1;_nop_();
CON=0;_nop_();
delays(1);
CON=1;_nop_();
while(BUSY!=0)
CLK=0;
for(r=0;r<16;r++)
{
CLK = 1; _nop_();
CLK = 0; _nop_();
DATA1=DATA1<<1|ADOUT;
}
CLK=1;_nop_();
delays(3);
CON=0;
while(BUSY==0)
CON=1;
}
/*----------------蜂鸣器报警程序-----------------------------------------------*/
void speak()
{
if(DATA1>=5000)
SPK=0;
else
SPK=1;
}
/*----------------中断控制显示函数-----------------------------------------------*/
void LED_Flash() interrupt 1
{
TH0=(8192-5000)/32; //定时器中断初值修改1000可以对显示时间进行修改
TL0=(8192-5000)%32;
if(++T_Count==100)
{
CYS=DATA1/3;
T_Count=0;
}
}

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