main.lst

采用C51编写的基于C8051F020单片机的电机测速使用程序。

C51 COMPILER V6.23a  MAIN                                                                  12/19/2002 16:17:30 PAGE 1   


C51 COMPILER V6.23a, 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          #define SetSpeed 30
   9          
  10          
  11          unsigned int Count1s=1000;
  12          unsigned int SaveMotorCount,MotorCount=0;
  13          unsigned int iDAC0=2048;
  14          int SD;
  15          unsigned char Count1ms;
  16          char GetKeyValue(void);
  17          
  18          void Test7279(bit LoopFlag);
  19          void DispLED(char *DispBuf,char ShowDot);       //ShowDot 显示小数点位 
  20          void TestMotor(void);
  21          
  22          
  23          
  24          
  25          
  26          void Delay1us(unsigned char us)
  27          {
  28   1              while (us)
  29   1              {
  30   2                _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
  31   2                --us;
  32   2              }
  33   1      }
  34          
  35          void SYSCLK_Init (void)
  36          {
  37   1         int i;                              // delay counter
  38   1         OSCXCN = 0x67;                      // start external oscillator with
  39   1                                             // 18.432MHz crystal
  40   1         for (i=0; i < 256; i++) ;           // Wait for osc. to start up
  41   1         while (!(OSCXCN & 0x80)) ;          // Wait for crystal osc. to settle
  42   1         OSCICN = 0x88;                      // select external oscillator as SYSCLK
  43   1                                             // source and enable missing clock
  44   1                                             // detector
  45   1      //      OSCICN = 0x07;   //interal 16MHZ
  46   1      }
  47          
  48          
  49          void PORT_Init (void)
  50          {
  51   1         XBR0    = 0x07;                     // Enable SMBus, SPI0, and UART0
  52   1         XBR1    = 0x04;                                         //P10<---int0
  53   1         XBR2    = 0x40;                     // Enable crossbar and weak pull-ups
  54   1         EMI0CF  = 0x27;
  55   1         EMI0TC  = 0x21;
C51 COMPILER V6.23a  MAIN                                                                  12/19/2002 16:17:30 PAGE 2   

  56   1         P74OUT  = 0xFF;
  57   1         P0MDOUT = 0x15;
  58   1      
  59   1         P1MDOUT |= 0x3C;                                     //P1.2-P1.5推挽输出
  60   1         P1 &= 0xc3;                                                  //P1.2-P1.5=0
  61   1      }
  62          
  63          void SPI0_Init (void)
  64          {
  65   1         SPI0CFG = 0x07;                     // data sampled on 1st SCK rising edge
  66   1                                             // 8-bit data words
  67   1         SPI0CFG|=0xC0;       //CKPOL =1;
  68   1      
  69   1         SPI0CN = 0x03;                      // Master mode; SPI enabled; flags
  70   1                                             // cleared
  71   1         SPI0CKR = SYSCLK/2/8000000-1;       // SPI clock <= 8MHz (limited by 
  72   1                                             // EEPROM spec.)
  73   1      }
  74          
  75          void Timer0_Init (void)
  76          {
  77   1              CKCON|=0x8;
  78   1              TMOD|=0x1;      //16Bit
  79   1              Count1ms=10;
  80   1              TR0 = 0;                                // STOP Timer0
  81   1              TH0 = (-SYSCLK/1000) >> 8;              // set Timer0 to overflow in 1ms
  82   1              TL0 = -SYSCLK/1000;
  83   1              TR0 = 1;        // START Timer0
  84   1              IE|= 0x2; 
  85   1      }
  86          
  87          
  88          void Timer0_ISR (void) interrupt 1  //1ms
  89          {
  90   1              TH0 = (-SYSCLK/1000) >> 8;  
  91   1              TL0 = -SYSCLK/1000;
  92   1              if (Count1ms) Count1ms--;
  93   1              if (Count1s) Count1s--;
  94   1              else
  95   1              {
  96   2                      Count1s=1000;
  97   2              SaveMotorCount=MotorCount;
  98   2                      MotorCount=0;
  99   2                      SD=SaveMotorCount/2-SetSpeed;
 100   2                      SaveMotorCount*=30;
 101   2                      if (SD)
 102   2                      {
 103   3                              if ((SD>5)||(SD<-5))
 104   3                              iDAC0-=SD*4;
 105   3                              else
 106   3                                      iDAC0-=SD;
 107   3                                                              
 108   3                              DAC0=iDAC0;
 109   3                           
 110   3                              }
 111   2              }
 112   1      }
 113          
 114          void Int0_ISR (void) interrupt 0  
 115          {
 116   1              MotorCount++;
 117   1      }
C51 COMPILER V6.23a  MAIN                                                                  12/19/2002 16:17:30 PAGE 3   

 118          
 119          void Delay1ms(unsigned char T)
 120          {
 121   1              Count1ms=T;
 122   1              while (Count1ms);
 123   1      }
 124          
 125          void Delay1s(unsigned char T)
 126          {
 127   1              while (T)
 128   1              {
 129   2                      Delay1ms(200);
 130   2                      Delay1ms(200);
 131   2                      Delay1ms(200);
 132   2                      Delay1ms(200);
 133   2                      Delay1ms(200);
 134   2                      T--;
 135   2              }
 136   1      }
 137          
 138          void main (void) 
 139          {
 140   1      
 141   1              WDTCN = 0xde;
 142   1              WDTCN = 0xad;           //关看门狗
 143   1              SYSCLK_Init ();         //初始化时钟
 144   1              Timer0_Init();                  //初始化定时器
 145   1              PORT_Init ();           //初始化IO口
 146   1              SPI0_Init ();           //初始化SPI0
 147   1              CPT1CN|=0x80;                   //使能比较器1
 148   1              REF0CN = 0x07;                  //使能片内参考电压
 149   1              DAC0CN |= 0x80;                 //使能DAC0
 150   1              DAC0H=0;        DAC0L=0;
 151   1      
 152   1              IT0=1;
 153   1              IE |= 0x01;     //使能INT0中断
 154   1              EA=1;                   //开中断
 155   1      
 156   1              Test7279(0);
 157   1              TestMotor();
 158   1      }
 159          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    387    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     11    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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