spi_send.lst

51单片机SPI模式

C51 COMPILER V8.05a   SPI_SEND                                                             05/08/2009 16:27:30 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE SPI_SEND
OBJECT MODULE PLACED IN SPI_Send.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE SPI_Send.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h"
   2          
   3          #define uchar unsigned char
   4          #define uint  unsigned int 
   5          
   6          //---------------------------//
   7          sbit SPISCLK =P1^0;
   8          sbit MOSI    =P1^1;
   9          sbit MISO    =P1^2;
  10          sbit CS      =P1^3;
  11          //---------------------------//
  12          
  13          void SPI_Send(uchar dat)
  14          {
  15   1              uchar i;
  16   1              CS=1;
  17   1              while(CS){;}
  18   1              for(i=0;i<8;i++)
  19   1                      {
  20   2                              SPISCLK=1;
  21   2                              while(SPISCLK){;}
  22   2                              if(dat&0x80)
  23   2                                      MISO=1;
  24   2                               else MISO=0;
  25   2                              dat<<=1;
  26   2                              while(~SPISCLK){;}
  27   2                      }       
  28   1      }
  29          
  30          void main()
  31          {
  32   1              uchar i;
  33   1              while(1)
  34   1              {
  35   2              for(i=0;i<20;i++)
  36   2                      {
  37   3                              SPI_Send(i);
  38   3                      }
  39   2              }
  40   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     49    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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