sja1000.lst

工业CAN网络节点控制系统设计

C51 COMPILER V8.09   SJA1000                                                               03/13/2008 06:00:58 PAGE 1   


C51 COMPILER V8.09, COMPILATION OF MODULE SJA1000
OBJECT MODULE PLACED IN SJA1000.OBJ
COMPILER INVOKED BY: E:\Keil\C51\BIN\C51.EXE SJA1000.c ROM(COMPACT) BROWSE INCDIR(E:\Keil\C51\INC) DEBUG OBJECTEXTEND

line level    source

   1          #include <REGX52.h>
   2          #include <absacc.h>     
   3          
   4          #include "xkcan_defs.h"
   5          #include "sja1000.h"
   6          
   7          void SJAReset(void)
   8          {
   9   1              SJA1000_CS = 1;
  10   1              SJA1000_RST = 0;
  11   1              SJA1000_RST = 1;
  12   1      }
  13          
  14          void wbyte(ubyte addr,  ubyte dat)
  15          {
  16   1              ubyte addr_t;
  17   1              addr_t = P2 & (~(1<<SJA1000_CS_SHIFT));
  18   1              
  19   1              // The correct form of wbyte
  20   1              // XBYTE[addr|(addr_t<<8)] = dat;
  21   1              
  22   1              // This is the wrong form
  23   1              XBYTE[addr|(addr_t<<8)] = ((dat&0x80)>>1 | (dat&0x40)<<1 | (dat&0x3f));
  24   1              
  25   1              
  26   1              P2 = addr_t | (1<<SJA1000_CS_SHIFT); 
  27   1      }
  28          
  29          ubyte rbyte(ubyte addr)
  30          {
  31   1              ubyte dat;
  32   1              ubyte addr_t;
  33   1              addr_t = P2 & (~(1<<SJA1000_CS_SHIFT));
  34   1              dat = XBYTE[addr|(addr_t<<8)];
  35   1              P2 = addr_t | (1<<SJA1000_CS_SHIFT); 
  36   1              
  37   1              // The correct form of wbyte
  38   1              // return dat;
  39   1              
  40   1              // This is the wrong form
  41   1              return ((dat&0x80)>>1 | (dat&0x40)<<1 | (dat&0x3f));
  42   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     90    ----
   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)