main.lst

89s51单片机做的计数器

C51 COMPILER V7.06   MAIN                                                                  12/03/2006 19:49:13 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 BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          ////////////////////////////
   2          //private counter
   3          //cjy 2006 11.28 at GDUT
   4          ///////////////////////////
   5          #include "reg51.h"
   6          #include"24c02.h"
   7          ////////端口定义///////////
   8          #define data_port  P0
   9          #define bit_port   P2
  10          sbit total_led =P3^1;//总计数LED
  11          sbit src       =P3^0;//可控硅
  12          sbit relay     =P3^6;//继电器
  13          ///////按键定义///////////
  14          #define set   1
  15          #define right 2
  16          #define up    3
  17          #define rst   4
  18          /////////led数码管笔画表////////////
  19          unsigned char code led_tab[]={     
  20                  0xC0,/*0*/
  21                  0xF9,/*1*/
  22                  0xA4,/*2*/
  23                  0xB0,/*3*/
  24                  0x99,/*4*/
  25                  0x92,/*5*/
  26                  0x82,/*6*/
  27                  0xF8,/*7*/
  28                  0x80,/*8*/
  29                  0x90,/*9*/
  30                          0x88,/*A*/
  31                  0x83,/*b*/
  32                  0xBF,/*-*/};
  33          ///////函数声明/////////////////////
  34          void sys_init(void);
  35          void delay(unsigned int t);
  36          void led_diplay(void);
  37          unsigned  char scan_key(void);
  38          unsigned  char get_key(void);
  39          void conver(void);
  40          void read_all(void);
  41          ///////变量声明/////////////////////
  42          unsigned char buff_pointer=0;
  43          struct buff
  44          {
  45           unsigned char bits[7];
  46           unsigned int num;
  47          };
  48          struct buff led_buff[3];
  49          
  50          ////////////主函数//////////////////
  51          void main(void)
  52          {
  53   1       sys_init();//系统初始化
  54   1       x24c02_init();//初始化EEPROM
  55   1       //read_all();//从EEPROM读出各个计数值
C51 COMPILER V7.06   MAIN                                                                  12/03/2006 19:49:13 PAGE 2   

  56   1       led_buff[0].num=12345;
  57   1       while(1){
  58   2                conver();
  59   2           led_diplay();}
  60   1       while(1)
  61   1       {
  62   2         //unsigned char key;
  63   2         switch(get_key())
  64   2          {
  65   3           case set:      ;  break;
  66   3           case right:    ;  break;
  67   3           case up:      led_buff[0].num-- ;  break;
  68   3           case  rst:   led_buff[0].num++  ;  break;
  69   3           default:   ;      break;
  70   3           }while(1){
  71   3                conver();
  72   3           led_diplay();}
  73   2      
  74   2        }
  75   1      }
  76          //INT0中断服务程序
  77          void INT0_ISR (void) interrupt 0
  78          {
  79   1      
  80   1      total_led=~total_led;
  81   1      //src=~src;
  82   1      //relay=~relay;
  83   1      }
  84          
  85          void sys_init(void)
  86          {
  87   1      //这里编写需要初始化的参数
  88   1      total_led=0;
  89   1      IT0=1;//负边缘触发
  90   1      EX0=1;//开INT0中断
  91   1      EA=1;//开总中断
  92   1      
  93   1      }
  94          unsigned  char scan_key(void)
  95            { 
  96   1          unsigned char result=0;
  97   1          P1|=0x78;//01111000
  98   1          //if(P1&0x78!=0x78)
  99   1          switch (P1&0x78)
 100   1                 {
 101   2                   case 0x38:  result=1; break;
 102   2                   case 0x58:  result=2; break;
 103   2                       case 0x68:  result=3; break;
 104   2                       case 0x70:  result=4; break;
 105   2                       default:        result=0; break;               
 106   2                 }
 107   1          return result;
 108   1        }
 109          
 110          unsigned  char get_key(void)
 111            {
 112   1         unsigned char temp1,key_num=0;
 113   1         unsigned int i=8000;//按键时间
 114   1         if((temp1=scan_key())!=0);
 115   1            {
 116   2                   delay(30);
 117   2              if(temp1==scan_key())
C51 COMPILER V7.06   MAIN                                                                  12/03/2006 19:49:13 PAGE 3   

 118   2                      {
 119   3                       key_num=temp1;
 120   3                   while(scan_key()!=0&&i--);//放开按键或时间到都可以退出循环
 121   3                      }
 122   2                 }
 123   1         return key_num;
 124   1        }
 125          
 126           void delay(unsigned int t)
 127          {
 128   1       unsigned int i;
 129   1       for(i=0;i<t;i++)//
 130   1            ;
 131   1      } 
 132          void conver(void)
 133          {
 134   1       unsigned int i;
 135   1       unsigned char j;
 136   1       i=led_buff[buff_pointer].num;
 137   1       for(j=0;j<6;j++)
 138   1       {
 139   2        led_buff[buff_pointer].bits[j]=i%10;
 140   2        i/=10;
 141   2       }
 142   1      }
 143          void led_display(void)
 144          {
 145   1       unsigned char k,temp,num;
 146   1       temp=0x80;
 147   1       for(k=0;k<6;k++)//从右到左扫描，低位到高位
 148   1       {
 149   2         num=led_buff[0].bits[0];
 150   2         data_port=led_tab[num];
 151   2         bit_port=~temp;
 152   2         temp=temp>>1;
 153   2         delay(300);
 154   2         bit_port=0xff;//消除鬼影
 155   2          //delay(10);
 156   2        }
 157   1       }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    242    ----
   CONSTANT SIZE    =     13    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     28       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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