serial.lst

Keil_C51程序,C8051实现的TCP/IP功能源码

C51 COMPILER V7.20   SERIAL                                                                03/07/2006 14:49:11 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE SERIAL
OBJECT MODULE PLACED IN SERIAL.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE SERIAL.C OPTIMIZE(9,SPEED) BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //-----------------------------------------------------------------------------
   2          // Net SERIAL.C
   3          //
   4          // This module handles RS-232 messages and associated tasks
   5          //-----------------------------------------------------------------------------
   6          #include "reg52.h"
   7          #include "string.h"
   8          #include "intrins.h"
   9          #include "net.h"
  10          #include "serial.h"
  11          #include "absacc.h"
  12          
  13          unsigned int    CommRecLength;//串口接受数据长度，同时用作地址标注
  14          bit                             CommRecFlag;//串口接收标志，接收到后置为1
  15          bit                             CommRecBlock;
  16          #define         REC_BLOCK0      0x4000
  17          #define         REC_BLOCK1      0x5000
  18           
  19          void init_serial(void)
  20          {
  21   1              SCON=0x50;//将串口设置为方式1，8位数据
  22   1              PCON=0x80;//不进行2分频
  23   1              TMOD=0x20;//定时器1设为模式2，
  24   1              TL1=0xff;//设置波特率为57600=0xff,SMOD=1,51200=0x0,9600(TL1=0xFA,SMOD=1)，5760
  25   1              TH1=0xff;//设置波特率f6
  26   1              PS=1;//串行中断优先级高
  27   1              TR1=1;//启动定时器1
  28   1      
  29   1              RI=0;                                   // Clear HW_UART receive and transmit
  30   1              TI=0;                                   // complete indicators.
  31   1              ES=1;                                   // allow the serial interrupt
  32   1      
  33   1              CommRecLength=0;
  34   1              CommRecFlag=0;
  35   1              CommRecBlock=0;
  36   1      }
  37          
  38          void Serial_Send_Ch(unsigned char ch)
  39          {
  40   1      //      ES=0;
  41   1              SBUF=ch;
  42   1              while(!TI){}
  43   1              TI=0;
  44   1      //      ES=1;
  45   1      }
  46          
  47          void SendCommString(unsigned char *base) 
  48          {
  49   1              unsigned char length=strlen(base);      
  50   1              unsigned char i;
  51   1              for(i=0;i<length;i++)Serial_Send_Ch(*(base+i));
  52   1      }
  53          
  54          void CommISR(void) interrupt 4
  55          {
C51 COMPILER V7.20   SERIAL                                                                03/07/2006 14:49:11 PAGE 2   

  56   1      /*      if (TI)
  57   1              {
  58   1                      return ;
  59   1              }*/
  60   1              if (RI) 
  61   1              {        
  62   2                      RI=0;
  63   2                      if(CommRecBlock)XBYTE[CommRecLength+REC_BLOCK0]=SBUF;
  64   2                              else XBYTE[CommRecLength+REC_BLOCK1]=SBUF;
  65   2                      CommRecLength++;
  66   2                      CommRecFlag=1;
  67   2              }
  68   1      }
  69          
  70          //------------------------------------------------------------------------
  71          // This function converts an integer to an ASCII string.  It is a 
  72          // normally provided as a standard library function but the Keil
  73          // libraries do not include it.  Caution: The string passed to this
  74          // must be at least 12 bytes long
  75          //------------------------------------------------------------------------
  76          char * itoa(UINT value, char * buf, UCHAR radix)
  77          {
  78   1              UINT i;
  79   1              char * ptr;
  80   1              char * temphold;
  81   1      
  82   1              temphold = buf;
  83   1              ptr = buf + 12;
  84   1              *--ptr = 0;             // Insert NULL char
  85   1              do
  86   1              {
  87   2                 // First create string in reverse order
  88   2                 i = (value % radix) + 0x30;
  89   2                      if(i > 0x39) i += 7;
  90   2                      *--ptr = i;
  91   2            value = value / radix;
  92   2              } while(value != 0);
  93   1      
  94   1              // Next, move the string 6 places to the left
  95   1              // Include NULL character
  96   1              for( ; (*buf++ = *ptr++); );    
  97   1              return(temphold);
  98   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    312    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2      17
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      2    ----
END OF MODULE INFORMATION.


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