key.lst

51单片机及其C语言程序开发实例光盘资料.rar

C51 COMPILER V7.09   KEY                                                                   08/24/2007 09:37:37 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN Key.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE Key.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          #include"Config.h"
   3          #include"IOCfg.c"
   4          #include"TimeDLY.h"
   5          #include"Key.h"
   6          
   7          
   8          //函数：SPI_WriteOneByte()
   9          //功能：向SPI总线写数据
  10          //说明：写入的数据长度为1字节
  11          void SPI_WriteOneByte(INT8U Wdata)
  12          {
  13   1              INT8U i;
  14   1              for(i=0;i<8;i++)
  15   1              {
  16   2                      ZLG7289DIO = (bit)(Wdata&0x80);
  17   2                      ZLG7289CLK = 1;
  18   2                      Wdata <<= 1;
  19   2                      nNop(1);
  20   2                      ZLG7289CLK = 0;
  21   2                      nNop(1);                
  22   2                      }
  23   1              }
  24          
  25          
  26          //函数：SPI_ReadOneByte()
  27          //功能：从SPI总线读数据
  28          //说明：返回1字节数据
  29          INT8U SPI_ReadOneByte()
  30          {
  31   1              INT8U i,temp;
  32   1              ZLG7289DIO = 1;                 //将I/O切换到输入状态
  33   1              for(i=0;i<8;i++)
  34   1              {
  35   2                      ZLG7289CLK = 1;
  36   2                      nNop(5);
  37   2                      temp <<= 1;
  38   2                      if(ZLG7289DIO) temp++;
  39   2                      ZLG7289CLK      =       0;
  40   2                      nNop(5);
  41   2                      }
  42   1              return temp;
  43   1              }
  44          
  45          //函数：ZLG7289_Instruc()
  46          //功能：执行ZLG7289纯指令
  47          //说明：指令长度为1字节
  48          void ZLG7289_Instruc(INT8U Instruc)
  49          {
  50   1              INT8U i;
  51   1              i = IE;
  52   1              IE &= 0xfa;                                                     // Disable external interrupt;
  53   1              ZLG7289CS = 0;
  54   1              nNop(5);
  55   1              SPI_WriteOneByte(Instruc);
C51 COMPILER V7.09   KEY                                                                   08/24/2007 09:37:37 PAGE 2   

  56   1              ZLG7289CS = 1;
  57   1              nNop(5);
  58   1              IE = i;                                                         
  59   1              }
  60          
  61          
  62          //函数：ZLG7289_Instruc_Data
  63          //功能：执行ZLG7289带数据指令
  64          //说明：指令长度以及数据长度均为1字节
  65          void ZLG7289_Instruc_Data(INT8U Instruc,INT8U Data)
  66          {
  67   1              INT8U i;
  68   1              i = IE;
  69   1              IE &= 0xfa;
  70   1              ZLG7289CS = 0;
  71   1              nNop(5);
  72   1              SPI_WriteOneByte(Instruc);
  73   1              nNop(5);
  74   1              SPI_WriteOneByte(Data);
  75   1              ZLG7289CS = 1;
  76   1              nNop(5);
  77   1              IE = i;
  78   1              }
  79          
  80          
  81          
  82          //函数：ZLG7289_ReadKey()
  83          //功能：执行ZLG7289读键盘指令
  84          //说明：返回1字节的按键号
  85          //                      按键号的范围为：0 ~ 63（即0x0 ~ 0x3f）
  86          //                      若没有按按键被按下了，返回255（即0xff）
  87          INT8U ZLG7289_ReadKey()
  88          {
  89   1              INT8U Key;
  90   1              ZLG7289CS = 0;
  91   1              nNop(10);
  92   1              SPI_WriteOneByte(0x15);
  93   1              nNop(5);
  94   1              Key = SPI_ReadOneByte();
  95   1              nNop(1);
  96   1              ZLG7289CS = 1;
  97   1              nNop(5);
  98   1              return Key;
  99   1              }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    193    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      10
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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