10.4.lst

《单片机C语言编程与实例》的代码

C51 COMPILER V6.20c  10_4                                                                  09/02/2001 15:04:33 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE 10_4
OBJECT MODULE PLACED IN 10.4.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 10.4.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          typedef unsigned int uint;
   3          typedef unsigned char uchar;
   4          sbit Sda=P1^1; 					//串行数据
   5          sbit Scl=P1^2; 					//串行时钟
   6          void mDelay(uchar j) 				//廷时
   7          {
   8   1      uint i;
   9   1      for(;j>0;j--)
  10   1      for(i=0;i<10;i++)
  11   1      {}
  12   1      }
  13          void Start(void) 					//起始条件
  14          {
  15   1      Sda=1;
  16   1      Scl=1;
  17   1      Sda=0;
  18   1      }
  19          void Stop(void) 					//停止条件
  20          {
  21   1      Sda=0;
  22   1      Scl=1;
  23   1      Sda=1;
  24   1      }
  25          void Ack(void) 					//应答位
  26          {
  27   1      Sda=0;
  28   1      Scl=1;
  29   1      Scl=0;
  30   1      }
  31          void Send(uchar Dat) 				//发送数据子程序，Dat为要求发送的数据
  32          {
  33   1      uchar BitCounter=8; 			//位数控制
  34   1      uchar temp; 					//中间变量控制
  35   1      do
  36   1      {
  37   2      temp=Dat;
  38   2      Scl=0;
  39   2      if((temp&0x80)==0x80) 		//如果最高位是1
  40   2      Sda=1;
  41   2      else
  42   2      Sda=0;
  43   2      Scl=1;
  44   2      temp=Dat<<1; 				//RLC
  45   2      Dat=temp;
  46   2      BitCounter--;
  47   2      }
  48   1      while(BitCounter);
  49   1      Scl=0;
  50   1      }
  51          void moveout(uchar num)
  52          {
  53   1      Start(); 						//发送启动信号
  54   1      Send(0x58); 					//发送器件地址
  55   1      Ack();
C51 COMPILER V6.20c  10_4                                                                  09/02/2001 15:04:33 PAGE 2   

  56   1      Send(0x00); 					//发送命令
  57   1      Ack();
  58   1      Send(num);
  59   1      Ack();
  60   1      Stop();
  61   1      mDelay(2);
  62   1      }
  63          
  64          void main()
  65          {
  66   1      uchar shuju;
  67   1      moveout(shuju);
  68   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    112    ----
   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)