main.lst

本程序实现了在增强型51单片机C8051F020上对步进电动机的驱动。

C51 COMPILER V7.06   MAIN                                                                  05/26/2006 17:13:21 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           
   5          void SYSCLK_Init (void)
   6          {
   7   1         int i;                              // delay counter
   8   1         OSCXCN = 0x67;                      // start external oscillator with
   9   1                                             // 18.432MHz crystal
  10   1         for (i=0; i < 256; i++) ;           // Wait for osc. to start up
  11   1         while (!(OSCXCN & 0x80)) ;          // Wait for crystal osc. to settle
  12   1         OSCICN = 0x88;                      // select external oscillator as SYSCLK
  13   1                                             // source and enable missing clock
  14   1                                             // detector
  15   1      //      OSCICN = 0x07;   //interal 16MHZ
  16   1      }
  17          
  18          #define PRT0CF P0MDOUT
  19          #define PRT1CF P1MDOUT
  20          #define PRT2CF P2MDOUT
  21          
  22          void PORT_Init (void)
  23          {
  24   1       //  XBR0    = 0x07;                     // Enable SMBus, SPI0, and UART0
  25   1         XBR1    = 0x00;
  26   1         XBR2    = 0x44;                     // Enable crossbar and weak pull-ups
  27   1         EMI0CF  = 0x27;
  28   1         EMI0TC  = 0x21;
  29   1         P74OUT  = 0xFF;
  30   1         P0MDOUT = 0x15;
  31   1      
  32   1         P1MDOUT |= 0x0f;                                     //P1.2-P1.5推挽输出
  33   1         P1 &= 0xff;                                                  //P1.2-P1.5=0
  34   1      }
  35          
  36          void SPI0_Init (void)
  37          {
  38   1         SPI0CFG = 0x07;                     // data sampled on 1st SCK rising edge
  39   1                                             // 8-bit data words
  40   1         SPI0CFG|=0xC0;       //CKPOL =1;
  41   1      
  42   1         SPI0CN = 0x03;                      // Master mode; SPI enabled; flags
  43   1                                             // cleared
  44   1         SPI0CKR = SYSCLK/2/8000000-1;       // SPI clock <= 8MHz (limited by 
  45   1                                             // EEPROM spec.)
  46   1      }
  47          
  48          unsigned char Count1ms;
  49          void Timer0_Init (void)
  50          {
  51   1              CKCON|=0x8;
  52   1              TMOD|=0x1;      //16Bit
  53   1              Count1ms=10;
  54   1              TR0 = 0;                                // STOP Timer0
  55   1              TH0 = (-SYSCLK/1000) >> 8;              // set Timer0 to overflow in 1ms
C51 COMPILER V7.06   MAIN                                                                  05/26/2006 17:13:21 PAGE 2   

  56   1              TL0 = -SYSCLK/1000;
  57   1              TR0 = 1;        // START Timer0
  58   1              IE|= 0x2; 
  59   1      }
  60          
  61          void Timer0_ISR (void) interrupt 1  //1ms
  62          {
  63   1              TH0 = (-SYSCLK/1000) >> 8;  
  64   1              TL0 = -SYSCLK/1000;
  65   1              if (Count1ms) Count1ms--;
  66   1      }
  67          
  68          void Delay1ms(unsigned char T)
  69          {
  70   1              Count1ms=T;
  71   1              while (Count1ms);
  72   1      }
  73          
  74           
  75          void TestStepM(void);
  76           
  77          void main (void) 
  78          {
  79   1      
  80   1              WDTCN = 0xde;
  81   1              WDTCN = 0xad;           //关看门狗
  82   1              SYSCLK_Init ();         //初始化时钟
  83   1              Timer0_Init();                  //初始化定时器
  84   1              PORT_Init ();           //初始化IO口
  85   1              SPI0_Init ();           //初始化SPI0
  86   1      
  87   1              CPT1CN|=0x80;   //使能比较器1
  88   1              REF0CN = 0x03;  //使能片内参考电压
  89   1              DAC0CN |= 0x80; //使能DAC0
  90   1              DAC0H=0;        DAC0L=0;
  91   1      
  92   1              EA=1;                                   //开中断
  93   1       
  94   1              TestStepM();
  95   1      }
  96          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    147    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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