spi2_main.lst

利用805151单片机实现spi总线模拟。

C51 COMPILER V8.08   SPI2_MAIN                                                             06/02/2007 10:16:56 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE SPI2_MAIN
OBJECT MODULE PLACED IN SPI2_Main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE SPI2_Main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #define uchar   unsigned char
   2          #define uint    unsigned int
   3          #define ulong   unsigned long
   4          //---------------------------
   5          #include <REG52.H>      
   6          #include<STDIO.H>
   7          
   8           //---------------------------
   9          sbit    SPICLK  =       P1^0;
  10          sbit    MOSI    =       P1^1;
  11          sbit    MISO    =       P1^2;
  12          sbit    SS              =       P1^3;
  13          
  14          
  15          void    Dat_Transmit(uchar dat)
  16                  {
  17   1                      uchar   i,datbuf;
  18   1                      datbuf=dat;
  19   1                      SS=1;
  20   1                      while(SS){;}
  21   1                      for(i=0;i<8;i++)
  22   1                              {
  23   2                                 while(SPICLK){;}
  24   2                                 if(datbuf&0x80)
  25   2                                 MISO=1;
  26   2                                 else  MISO=0;
  27   2                                 datbuf=(datbuf<<1);
  28   2                                 while(~SPICLK){;}
  29   2                              }               
  30   1                                      
  31   1              }
  32          
  33          
  34          void    main(void)
  35                  {
  36   1                      uchar i;
  37   1                      while(1)
  38   1                              {
  39   2                                      for(i=0;i<10;i++)
  40   2                                              {
  41   3                                                      Dat_Transmit(i);
  42   3                                                      
  43   3                                              }
  44   2                      
  45   2                              }
  46   1                              
  47   1              }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     47    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
C51 COMPILER V8.08   SPI2_MAIN                                                             06/02/2007 10:16:56 PAGE 2   

   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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