com.lst

一个循环冗余校验的程序

C51 COMPILER V7.06   COM                                                                   03/29/2008 23:01:42 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE COM
OBJECT MODULE PLACED IN .\output\COM.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE COM\COM.c BROWSE DEBUG OBJECTEXTEND PRINT(.\Listing\COM.lst) OBJECT(.\outpu
                    -t\COM.obj)

stmt level    source

   1          
   2          #include  "headfiles\headfiles.h"
   3          
   4          struct baudStaff
   5          {
   6               char t1;
   7               char pcon;
   8          };
   9          
  10          
  11          //Crystal Freq  =  18.432MHz
  12          
  13          struct baudStaff code baudList[] =
  14          {
  15              {0xff,0x80}, /*0   1152000*/
  16              {0xfe,0x80}, /*1    576000*/
  17              {0xfd,0x80}, /*2    288000*/
  18              {0xfc,0x80}, /*3    144000*/
  19              {0xf6,0x80}, /*4    115200*/
  20              {0xec,0x80}, /*5     57600*/
  21              {0xe2,0x80}, /*6     38400*/
  22              {0xd8,0x80}, /*7     28800*/
  23              {0xc4,0x80}, /*8     19200*/
  24              {0x89,0x80}   //  {0x88,0x80}  /*9      9600*/
  25          };
  26          
  27          void RandT(void) interrupt 4
  28          {
  29   1      //   unsigned char tmp;
  30   1      //  bit bit_tmp;
  31   1         if(TI)
  32   1         {
  33   2      //      TI=0;
  34   2            return;
  35   2         }
  36   1         if(RI)
  37   1         {
  38   2             RI=0;
  39   2      //     tmp = SBUF;
  40   2      //       Goto_Sleep_timer = 50000;
  41   2      //         Rcv_Data();
  42   2      //         bit_tmp = RB8;
  43   2      //     P1 = tmp;
  44   2      //     TB8 = RB8;
  45   2      //     SBUF = tmp;
  46   2         }
  47   1      }
  48          
  49          
  50          
  51          
  52          
  53          
  54          
C51 COMPILER V7.06   COM                                                                   03/29/2008 23:01:42 PAGE 2   

  55          void SetCom(char baudNum)
  56          {
  57   1            SCON = 0xD0;
  58   1      //      SCON = 0x50;
  59   1            PCON = baudList[baudNum].pcon;
  60   1            REN  = 1;
  61   1            TMOD = 0x21;
  62   1            TH1  = baudList[baudNum].t1;
  63   1                TL1  = baudList[baudNum].t1;
  64   1            AUXR = AUXR|0x40;
  65   1            TR1  = 1;
  66   1            ES   = 1;
  67   1            EA   = 1;
  68   1      }
  69          
  70          
  71          
  72          /*
  73          
  74          
  75          void Set_Parity_Bit(unsigned char ch)
  76          {
  77            unsigned char j;
  78            unsigned char temp;
  79            unsigned char b_tmp;
  80                  b_tmp = 0;
  81                  temp = ch;
  82                  for(j=0;j<8;j++)
  83                   {
  84                          temp>>=1;
  85                          if(CY)
  86                           b_tmp++;   
  87                   }
  88                  TB8 = b_tmp&0x01; 
  89          }
  90          
  91          
  92          bit Set_Parity_Flag;
  93           
  94          
  95          void  Send_Str(unsigned char *str)
  96          {
  97          //   Send_Audi_Key = 0;
  98             while(*str != '\0') 
  99               {
 100                     SBUF = *str;
 101                     Set_Parity_Flag = 1;
 102                     while(TI == 0)
 103                     {
 104                        if(Set_Parity_Flag) 
 105                              {
 106                             Set_Parity_Bit(*str);
 107                                     Set_Parity_Flag = 0;
 108                                  }     
 109                     }
 110                 TI = 0;
 111                     str++;          
 112                   }
 113          //       Delay(30);
 114          //   Send_Audi_Key = 1; 
 115          }
 116          
C51 COMPILER V7.06   COM                                                                   03/29/2008 23:01:42 PAGE 3   

 117          
 118          
 119          void Wait_Send_OK(void)
 120          {
 121              while(TI == 0);
 122                    TI = 0; 
 123          } 
 124          
 125          
 126          void Send_xxx_char(unsigned char ch)
 127          {
 128              unsigned  char tmp;
 129                  tmp = ((ch&0xF0)>>4);
 130                  if(tmp<10)
 131                   {
 132                     Set_Parity_Bit(tmp+48);
 133                     SBUF = tmp+48;
 134                   }
 135                  else
 136                   {
 137                     Set_Parity_Bit(tmp+55);
 138                     SBUF = tmp+55;
 139                   }
 140                  Wait_Send_OK();
 141                  tmp = ch&0x0F;
 142                  if(tmp<10)
 143                   {
 144                     Set_Parity_Bit(tmp+48);
 145                     SBUF = tmp+48;
 146                   }
 147                  else
 148                   {
 149                     Set_Parity_Bit(tmp+55);
 150                     SBUF = tmp+55;
 151                   }
 152                  Wait_Send_OK();
 153          }
 154          
 155          void Send_HEX_Str(unsigned char *str,unsigned char n)
 156          {
 157              while(n!=0)
 158                    {
 159                       Send_xxx_char(*str++);
 160                           Send_Str(" "); 
 161                           n--;
 162                    }
 163          }
 164          
 165          */
 166          
 167          
 168          /*
 169          void Send_HEX_char(unsigned char ch)
 170          {
 171              SBUF = '0';
 172                  Wait_Send_OK();
 173              SBUF = 'x';
 174                  Wait_Send_OK();
 175                  Send_xxx_char(ch);
 176          }
 177          */
 178          
C51 COMPILER V7.06   COM                                                                   03/29/2008 23:01:42 PAGE 4   

 179          
 180          
 181          
 182          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     72    ----
   CONSTANT SIZE    =     20    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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