lcdapi.lst

时钟芯片PCF8583的应用

C51 COMPILER V8.08   LCDAPI                                                                09/07/2008 20:10:55 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE LCDAPI
OBJECT MODULE PLACED IN lcdapi.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE lcdapi.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          
   3          typedef unsigned char uchar;
   4          
   5          sbit std = P1^5;
   6          sbit cs = P1^4;
   7          sbit sclk = P1^6;
   8          sbit lcdk = P1^7; // 0时亮
   9          
  10          void delay(int count)
  11          {
  12   1              int i,j;
  13   1              for(i = count ; i ; i --)
  14   1                      for(j = 125; j ; j --);
  15   1      }
  16          
  17          void write_lcd(bit data_comm,uchar content)  //L:comm; H:data;
  18          {
  19   1              uchar i,j;
  20   1              delay(1);
  21   1              std = 1;
  22   1              cs = 1;
  23   1              for(i = 5; i ; i --)
  24   1              {
  25   2                      sclk = 0;
  26   2                      sclk = 1;
  27   2              }
  28   1      
  29   1              std = 0;
  30   1              sclk = 0;
  31   1              sclk = 1;
  32   1      
  33   1              std = data_comm;
  34   1              sclk = 0;
  35   1              sclk = 1;
  36   1      
  37   1              std = 0;
  38   1              sclk = 0;
  39   1              sclk = 1;
  40   1              
  41   1              for(i = 2; i ; i--)
  42   1              {
  43   2                      for(j = 4; j ; j --)
  44   2                      {
  45   3                              content <<= 1;
  46   3                              std = CY;
  47   3                              sclk = 0;
  48   3                              sclk = 1;
  49   3                      }
  50   2      
  51   2                      std = 0;
  52   2                      for(j = 4; j ; j --)
  53   2                      {
  54   3                              sclk = 0;
  55   3                              sclk = 1;
C51 COMPILER V8.08   LCDAPI                                                                09/07/2008 20:10:55 PAGE 2   

  56   3                      }
  57   2              }
  58   1              cs = 0;
  59   1              std = 0;
  60   1              sclk = 0;
  61   1      }
  62          
  63          void clear_DDram()
  64          {
  65   1              write_lcd(0,0x30);//转到基本指令集
  66   1              write_lcd(0,0x01);//把DDRAM填满空格,AC指向00H
  67   1              delay(1);
  68   1      }
  69          
  70          void init_lcd()
  71          {
  72   1              write_lcd(0,0x30);//转到基本指令集
  73   1              lcdk = 0;
  74   1              clear_DDram();
  75   1              write_lcd(0,0x06);
  76   1              write_lcd(0,0x3c);
  77   1      }
  78          
  79          /*******************显示一行汉字*************************/
  80          //addr为四行开始的地址0x80,0x90,0x88,0x98
  81          void DisLineCN(unsigned char addr, unsigned char *chn)//指向code区的指针
  82          {
  83   1        unsigned char data i;
  84   1        write_lcd (0,0x30);    //基本指令
  85   1        write_lcd (0,addr);   //写地址
  86   1        for (i=0;i!=16;i++)  //写16个字节，也就是8个汉字
  87   1              write_lcd (1,chn[i]);
  88   1      }
  89          
  90          void DisChar(unsigned char addr,unsigned char _data)//显示一个字符
  91          {
  92   1          write_lcd(0,0x30);
  93   1          write_lcd(0,addr);
  94   1          write_lcd(1,_data);
  95   1      }
  96          
  97          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    221    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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