zhen.lst

proteus下仿真PI控制的电路图和源代码

C51 COMPILER V7.08   ZHEN                                                                  08/24/2007 14:52:41 PAGE 1   


C51 COMPILER V7.08, COMPILATION OF MODULE ZHEN
OBJECT MODULE PLACED IN zhen.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE zhen.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <absacc.h>
   2          #include <reg51.h>
   3          #include <stdio.h>
   4          bit flag=1;
   5          unsigned char pwm=0;
   6          sbit P21=P2^1;
   7          sbit P20=P2^0;
   8          unsigned char k1;
   9          unsigned char k2,k3;
  10          unsigned char BJ; //正负的标志位；
  11          unsigned char EK_num[3],EK_flag[3]; //误差和符号。
  12          unsigned char kp,ki,kd;
  13          unsigned char UK;      //控制输出。
  14          unsigned char negsum=0,possum=0;    //正数和与负数和。  
  15          unsigned char temp[3]; //中间变量。
  16          unsigned int  tmp[3];
  17          unsigned char Highlevel=0xff;//上限输出。
  18          unsigned char Lowlevel=0x00; //下限输出。
  19          unsigned char AD_in=153,AD_out;   //指令和反馈。
  20          unsigned char a,b;
  21          unsigned char m=0,n=0;  
  22          void PWM_generator() interrupt 3 using 0    //定时255us,0.063s。
  23          {
  24   1      
  25   1      if(flag==1)
  26   1       {a--;
  27   2        if(a==0)
  28   2          {flag=0;
  29   3              a=0xff-UK;
  30   3              }
  31   2         else
  32   2         {P21=0;}
  33   2       }
  34   1      if(flag==0)
  35   1       {b--;
  36   2        if(b==0)
  37   2          {flag=1;
  38   3              b=UK;
  39   3          } 
  40   2        else
  41   2       {P21=1;}
  42   2       } 
  43   1      
  44   1      }
  45          void PID_generator() interrupt 1 using 0  //PID定时，250us*380~0.1秒。
  46          { m++;
  47   1       if(m==10) 
  48   1         { m=0;     
  49   2           n++;
  50   2           
  51   2                AD_out=P1;
  52   2                   if( AD_in>AD_out)
  53   2                   {
  54   3                       temp[0]=AD_in-AD_out;
  55   3                        BJ=0; //正负标志位。
C51 COMPILER V7.08   ZHEN                                                                  08/24/2007 14:52:41 PAGE 2   

  56   3                       }
  57   2                         
  58   2             else
  59   2                {
  60   3                        temp[0]=AD_out-AD_in;
  61   3                        BJ=1; //正负标志位。
  62   3                        }
  63   2              
  64   2           }     OV=0;
  65   1                 k1=temp[0]*kp;
  66   1                 if(OV==1)
  67   1                    {OV=0;k1=0xfe;}
  68   1      }
  69          void PID_work2()
  70          {negsum=0;possum=0;
  71   1       if(BJ==0)
  72   1        {possum+=k1;
  73   2         temp[2]=temp[2]+temp[0];}
  74   1       else
  75   1        {negsum+=k1;
  76   2         temp[2]=temp[2]-temp[0];}
  77   1       k3=temp[2]/10;
  78   1       if(possum>negsum)
  79   1        {k2=possum-negsum; //用8位数据存储结果
  80   2        CY=0;
  81   2       temp[1]=k3+k1;  //误差积累，
  82   2       {if(CY==1)  //16位判断。
  83   3        UK=0xfe;
  84   3        else
  85   3        UK=k1+k3;}//
  86   2       }
  87   1      else
  88   1      {
  89   2      
  90   2      UK=1;
  91   2      }P3=UK;
  92   1      }
  93          
  94          
  95          main()
  96          {kp=5;
  97   1      ki=1;
  98   1      kd=1;
  99   1      TMOD=0x22;
 100   1      TH0=0x06; //对TH0 TL0赋值
 101   1      TL0=0x06;
 102   1      TH1=0x06; //对TH1 TL1赋值
 103   1      TL1=0x06;
 104   1      P20=1;
 105   1      ET0=1;
 106   1      TF0=0;
 107   1      ET1=1;
 108   1      TF1=0;
 109   1      TR1=1;
 110   1      TR0=1;
 111   1      EA=1;
 112   1      while(1)
 113   1      {
 114   2       
 115   2       PID_work2();
 116   2      }
 117   1      
C51 COMPILER V7.08   ZHEN                                                                  08/24/2007 14:52:41 PAGE 3   

 118   1      } 


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    247    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     34    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)