main.lst

这是一个ha7279键盘显示的C语言源程序

C51 COMPILER V7.06   MAIN                                                                  06/01/2005 13:18:25 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 Delay1us(unsigned char us)
   6          {
   7   1              while (us)
   8   1              {
   9   2                _nop_(); 
  10   2                _nop_(); 
  11   2                _nop_(); 
  12   2                _nop_(); 
  13   2                _nop_();
  14   2                --us;
  15   2              }
  16   1      }
  17          
  18          void SYSCLK_Init (void)  
  19          {
  20   1         int i;                              // delay counter
  21   1         OSCXCN = 0x67;                      // start external oscillator with
  22   1                                             // 18.432MHz crystal
  23   1         for (i=0; i < 256; i++) ;           // Wait for osc. to start up
  24   1         while (!(OSCXCN & 0x80)) ;          // Wait for crystal osc. to settle
  25   1         OSCICN = 0x88;                      // select external oscillator as SYSCLK
  26   1                                             // source and enable missing clock
  27   1                                             // detector
  28   1              OSCICN = 0x07;   //interal 16MHZ
  29   1      }
  30          
  31          #define PRT0CF P0MDOUT
  32          #define PRT1CF P1MDOUT
  33          #define PRT2CF P2MDOUT
  34                                     
  35          void PORT_Init (void)
  36          {   
  37   1         XBR0    = 0x07;                     // Enable SMBus, SPI0, and UART0
  38   1         XBR1    = 0x00;
  39   1         XBR2    = 0x44;                     // Enable crossbar and weak pull-ups
  40   1         EMI0TC  = 0x21;
  41   1         P74OUT  = 0xFF;                                      
  42   1         P0MDOUT = 0x15;
  43   1         P1MDOUT |= 0x3C;                                     //P1.2-P1.5推挽输出
  44   1         P1 &= 0xc3;                                                  //P1.2-P1.5=0
  45   1      
  46   1      }
  47          
  48          void SPI0_Init (void)
  49          {
  50   1         SPI0CFG = 0x07;                     // data sampled on 1st SCK rising edge
  51   1                                             // 8-bit data words
  52   1         SPI0CFG|=0xC0;       //CKPOL =1;
  53   1      
  54   1         SPI0CN = 0x03;                      // Master mode; SPI enabled; flags
  55   1                                             // cleared
C51 COMPILER V7.06   MAIN                                                                  06/01/2005 13:18:25 PAGE 2   

  56   1         SPI0CKR = SYSCLK/2/8000000-1;       // SPI clock <= 8MHz (limited by 
  57   1                                             // EEPROM spec.)
  58   1      }
  59          
  60          unsigned char Count1ms;
  61          void Timer0_Init (void)               //定时器0初始化,定时1ms
  62          {
  63   1              CKCON|=0x8;
  64   1              TMOD|=0x1;      //16Bit
  65   1              Count1ms=10;
  66   1              TR0 = 0;                                // STOP Timer0
  67   1              TH0 = (-SYSCLK/1000) >> 8;              // set Timer0 to overflow in 1ms
  68   1              TL0 = -SYSCLK/1000;
  69   1              TR0 = 1;        // START Timer0
  70   1              IE|= 0x2; 
  71   1      }
  72          
  73          void Timer0_ISR (void) interrupt 1  // 定时器0中断服务程序
  74          {
  75   1              TH0 = (-SYSCLK/1000) >> 8;  
  76   1              TL0 = -SYSCLK/1000;
  77   1              if (Count1ms) Count1ms--;
  78   1      }
  79          
  80          void Delay1ms(unsigned char T)
  81          {
  82   1              Count1ms=T;
  83   1              while (Count1ms);
  84   1      }
  85          
  86          void Delay1s(unsigned char T)
  87          {
  88   1              while (T)
  89   1              {
  90   2                      Delay1ms(200);
  91   2                      Delay1ms(200);
  92   2                      Delay1ms(200);
  93   2                      Delay1ms(200);
  94   2                      Delay1ms(200);
  95   2                      T--;
  96   2              }
  97   1      }
  98          
  99          void Test7279(bit LoopFlag);
 100          
 101          void main (void) 
 102          {
 103   1              WDTCN = 0xde;
 104   1              WDTCN = 0xad;           //关看门狗
 105   1              SYSCLK_Init ();         //初始化时钟
 106   1              Timer0_Init();                  //初始化定时器
 107   1              PORT_Init ();           //初始化IO口
 108   1              SPI0_Init ();           //初始化SPI0
 109   1              CPT1CN |= 0x80;                 //使能比较器1
 110   1              REF0CN = 0x03;                  //使能片内参考电压
 111   1              DAC0CN |= 0x80;                 //使能DAC0
 112   1              DAC0H=0;        DAC0L=0;
 113   1      
 114   1              EA=1;                                   //开中断
 115   1              Test7279(1);
 116   1      }
 117          
C51 COMPILER V7.06   MAIN                                                                  06/01/2005 13:18:25 PAGE 3   



MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    190    ----
   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)