main.lst

本程序在单片机C8051F020上将直流电动机当前的转速值在七段数码管上显示出来

C51 COMPILER V7.06   MAIN                                                                  10/26/2005 14:32:40 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: c:\KEIL\C51\BIN\C51.exe main.c DB OE

stmt level    source

   1          #include "c8051f020.h"                
   2          #include <intrins.h>
   3          
   4          sfr16 DAC0  = 0xd2;                 // DAC0 data
   5          #define PRT0CF P0MDOUT
   6          #define PRT1CF P1MDOUT
   7          #define PRT2CF P2MDOUT
   8                    
   9          unsigned int SetSpeed;// 设定稳定转速，转一圈3个脉冲
  10          
  11          unsigned int Count1s=1000;
  12          unsigned int SaveMotorCount=0;// 每秒脉冲个数
  13          unsigned int MotorCount=0;
  14          unsigned int iDAC0=0x0b00;
  15          int SD;
  16          unsigned char Count1ms;
  17          void DispLED(char *DispBuf,char ShowDot);       //ShowDot 显示小数点位 
  18          void TestMotor(bit LoopFlag);
  19          
  20          
  21          void Delay1us(unsigned char us)
  22          {
  23   1              while (us)
  24   1              {
  25   2                _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
  26   2                --us;
  27   2              }
  28   1      }
  29          
  30          void SYSCLK_Init (void)
  31          {
  32   1         int i;                              // delay counter
  33   1         OSCXCN = 0x67;                      // start external oscillator with
  34   1                                             // 18.432MHz crystal
  35   1         for (i=0; i < 256; i++) ;           // Wait for osc. to start up
  36   1         while (!(OSCXCN & 0x80)) ;          // Wait for crystal osc. to settle
  37   1         OSCICN = 0x88;                      // select external oscillator as SYSCLK
  38   1                                             // source and enable missing clock
  39   1                                             // detector
  40   1      }
  41          
  42          
  43          void PORT_Init (void)
  44          {
  45   1         XBR0    = 0x04;                     // Enable UART0
  46   1         XBR1    = 0x06;                                         // P10<---int0
  47   1         XBR2    = 0x40;                     // Enable crossbar and weak pull-ups
  48   1      }
  49          
  50          
  51          void Timer0_Init (void)
  52          {
  53   1              CKCON|=0x8;                         // 使用系统时钟
  54   1              TMOD|=0x1;                              // 16Bit
  55   1              Count1ms=10;
C51 COMPILER V7.06   MAIN                                                                  10/26/2005 14:32:40 PAGE 2   

  56   1              TR0 = 0;                                // STOP Timer0
  57   1              TH0 = (-SYSCLK/1000) >> 8;              // set Timer0 to overflow in 1ms
  58   1              TL0 = -SYSCLK/1000;
  59   1              TR0 = 1;                                // START Timer0
  60   1              IE|= 0x2; 
  61   1      }
  62          
  63          
  64          void Timer0_ISR (void) interrupt 1  //1ms
  65          {
  66   1              TH0 = (-SYSCLK/1000) >> 8;  
  67   1              TL0 = -SYSCLK/1000;
  68   1              if (Count1ms) Count1ms--;
  69   1              if (Count1s) Count1s--;
  70   1              else
  71   1              {
  72   2                      Count1s=1000;
  73   2              SaveMotorCount=MotorCount;
  74   2                      MotorCount=0;
  75   2                      SD=SaveMotorCount-SetSpeed;             // 转速差额
  76   2                      SaveMotorCount*=20;// 转速为脉冲个数乘20
  77   2      
  78   2                      iDAC0-=SD;                      // 调整输出电压                         
  79   2                      DAC0=iDAC0;                  
  80   2      
  81   2              }
  82   1      }
  83          
  84          void Int0_ISR (void) interrupt 0  
  85          {
  86   1              MotorCount++;
  87   1      }
  88          
  89          void Delay1ms(unsigned char T)
  90          {
  91   1              Count1ms=T;
  92   1              while (Count1ms);
  93   1      }
  94          
  95          void Delay1s(unsigned char T)
  96          {
  97   1              while (T)
  98   1              {
  99   2                      Delay1ms(200);
 100   2                      Delay1ms(200);
 101   2                      Delay1ms(200);
 102   2                      Delay1ms(200);
 103   2                      Delay1ms(200);
 104   2                      T--;
 105   2              }
 106   1      }
 107          
 108          
 109          void main (void) 
 110          {
 111   1      
 112   1              WDTCN = 0xde;
 113   1              WDTCN = 0xad;           // 关看门狗
 114   1              SYSCLK_Init ();         // 初始化时钟
 115   1              Timer0_Init();                  // 初始化定时器
 116   1              PORT_Init ();           // 初始化IO口
 117   1              CPT1CN|=0x80;                   // 使能比较器1
C51 COMPILER V7.06   MAIN                                                                  10/26/2005 14:32:40 PAGE 3   

 118   1              REF0CN = 0x07;                  // 使能片内参考电压
 119   1              DAC0CN |= 0x80;                 // 使能DAC0
 120   1              DAC0H=0;        DAC0L=0;
 121   1              IT0=1;
 122   1              IE |= 0x01;             // 使能INT0中断
 123   1              EA=1;                           // 开中断
 124   1      
 125   1              TestMotor(1);
 126   1      }
 127          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    285    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     13    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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