max5354.lst

10位DA转换器Max5354驱动程序下载（Keil C51）

C51 COMPILER V6.20c  MAX5354                                                               07/11/2003 18:00:42 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE MAX5354
OBJECT MODULE PLACED IN max5354.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE max5354.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include "intrins.h"
   2          #include "At89x51.h"
   3          /////////////////////////////////////
   4          //采用P1口作控制
   5          //11.0592的晶体
   6          ////////////////////////////////////
   7          //I2C总线的数据和时钟
   8          #define SCL P1_7
   9          #define SDA P1_6
  10          #define SCS P1_5
  11          //////////////////////////////////////
  12          //7219的各控制线
  13          #define CLK7219    P2_7
  14          #define DIN7219    P2_6
  15          #define CS7219     P2_5
  16          ///////////////////////////////////////
  17          //unsigned int temp;
  18          max7219(unsigned int dat)
  19          {
  20   1      	char i;
  21   1      	CS7219=0;
  22   1      	_nop_();
  23   1      	
  24   1      	for(i=0;i<16;i++)
  25   1      	{
  26   2      		DIN7219=(dat>>(15-i))&0x1;
  27   2      		CLK7219=1;
  28   2      		_nop_();
  29   2      		CLK7219=0;
  30   2      	};
  31   1      
  32   1      	CS7219=1;
  33   1      }
  34          max5354(unsigned int Data)
  35          {
  36   1           unsigned char BitCounter=16;//位数控制
  37   1      	 unsigned int temp;//中间变量控制
  38   1      	 
  39   1      	temp=Data;
  40   1      	SCL=0;
  41   1      	SCS=0;
  42   1      	do{ 
  43   2      	 SCL=0;
  44   2      	 _nop_();
  45   2      	 if((temp&0x8000)==0x8000)//如果最高位是1
  46   2      	 SDA=1;
  47   2      	 else
  48   2      		SDA=0;
  49   2      	 SCL=1;
  50   2      	 
  51   2      	 temp=temp<<1;//左移
  52   2      	 
  53   2      	 BitCounter--;
  54   2      	
  55   2      	 }while(BitCounter);
C51 COMPILER V6.20c  MAX5354                                                               07/11/2003 18:00:42 PAGE 2   

  56   1      	 SCL=0;
  57   1      	 SCS=1;
  58   1      }
  59          main()
  60          {
  61   1      	unsigned int i,m;
  62   1      	unsigned char k;
  63   1      	unsigned int disp;
  64   1      	unsigned int j;
  65   1      //addata,
  66   1      //	SCL=1;
  67   1      //	SDA=1;
  68   1      for(i=0;i<2000;i++);
  69   1      	CLK7219=0;
  70   1      	for(i=0;i<31000;i++);
  71   1      ///////////////////////////////////////////////////////
  72   1      //7219初始化
  73   1      	max7219(0x0C01);    //shutdown register format 
  74   1      	max7219(0x09FF);    //decode mode code B 7-0
  75   1      	max7219(0x0A0F);    //intensity register format 
  76   1      	max7219(0x0B07);    //sacan limit register format 
  77   1      	max7219(0x0F00);    //display test register format 
  78   1      ////////////////////////////////////////////////////////
  79   1      	for(k=0;k<8;k++)
  80   1      	{
  81   2      		disp=k+1;
  82   2      		disp<<=8;
  83   2      		max7219(disp);
  84   2      
  85   2      	}
  86   1      /////////////////////////////////////////////////
  87   1      	while(1)
  88   1      	{
  89   2      	//	tlc5615(2730);	
  90   2      for(j=0;j<1024;j++)
  91   2      		{
  92   3      	        m=j;		
  93   3      			j<<=3;
  94   3      //			j|=0x2000;
  95   3      			j&=0xffff;
  96   3      			max5354(j);
  97   3      			j=m;
  98   3      			for(k=0;k<4;k++)
  99   3      			{
 100   4      			   disp=k+1;
 101   4      			   disp<<=8;
 102   4      			   disp|=j%10;
 103   4      			   j/=10;
 104   4      			   max7219(disp);
 105   4      			 
 106   4      			}
 107   3      		 	j=m;
 108   3                  for(k=0;k<1;k++)
 109   3      			{
 110   4      	 		//	for(i=0;i<31000;i++);
 111   4      			//	for(i=0;i<31000;i++);
 112   4      				for(i=0;i<20;i++);
 113   4      			}
 114   3      	    }
 115   2      	}
 116   1      }

C51 COMPILER V6.20c  MAX5354                                                               07/11/2003 18:00:42 PAGE 3   


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    342    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       7
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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