uart.lst

用来计算不同oscillator下

C51 COMPILER V7.50   UART                                                                  03/06/2006 11:44:57 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE UART
OBJECT MODULE PLACED IN .\OBJ\uart.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE C\uart.c BROWSE DEBUG OBJECTEXTEND PRINT(.\LST\uart.lst) OBJECT(.\OBJ\uart.
                    -obj)

line level    source

   1          /*------------------------------------------------------------------------------
   2          ;  This file is part of the RLC instruction
   3          ;  Copyright (c)
   4          ;  Version: 1.0 
   5          ;-------------------------------------------------------------------------------
   6          ;  Filename:
   7          ;  main.c
   8          ;  Function:   
   9          ;
  10          ;  Author:
  11          ;  pirate
  12          ;     
  13          ;  Writedate:
  14          ;  Oct.15 2005
  15          ;  Moddate(latest):
  16          ;  Oct.15 2005
  17          ;-------------------------------------------------------------------------------
  18          */
  19          
  20          //--------------------------------------
  21          // Included files
  22          //--------------------------------------
  23          #include <reg52.h>
  24          #include ".\HEAD\dtype.h"
  25          #include ".\HEAD\externf.h"
  26          #include ".\HEAD\sdefine.h"
  27          
  28          //--------------------------------------
  29          // Local Definitions and Types
  30          //--------------------------------------
  31          
  32          
  33          
  34          /*******************************************************************************
  35          //*   
  36          //*!  Function:    UART_init
  37          //*!
  38          //*!  Description: 
  39          //*!               - initialize the UART communiction modle
  40          //*!               
  41          //*!  Inputs:      None
  42          //*!
  43          //*!  Returns:     None
  44          //*
  45          /*******************************************************************************
  46          /*/
  47          /*
  48          void Uart_init(void)
  49          {
  50              TMOD = 0x20;                //apply timer1 to generate baud rate
  51                  SCON = 0x50;            //UART modle 1
  52                  PCON = 0x00;            //single baud rate
  53                  TH1 = 0xFD;                     //baude rate = 9600bps @11.0592MHz
  54                  TL1 = 0xFD;
C51 COMPILER V7.50   UART                                                                  03/06/2006 11:44:57 PAGE 2   

  55          }  */
  56          
  57          /*******************************************************************************
  58          //*   
  59          //*!  Function:    CalBaudrate
  60          //*!
  61          //*!  Description: 
  62          //*!               - by changing the value of TH1 & TL1 to find initiate value 
  63          //*!               of timer2
  64          //*!              
  65          //*!  Inputs:      None
  66          //*!
  67          //*!  Returns:     None
  68          //*
  69          /*******************************************************************************
  70          /*/
  71          void CalBaudrate(uchar inival)
  72          {
  73   1          T2CON = 0x30;           //use timer2 to generate baudrate, and permitted it to receive data
  74   1          //TMOD = 0x20;              //apply timer1 to generate baud rate
  75   1              SCON = 0x50;
  76   1              //PCON = 0x00;          //double baud rate
  77   1              TH2 =  0xFF;            
  78   1              TL2 =  inival;
  79   1              RCAP2H = 0xFF;
  80   1              RCAP2L = inival;
  81   1              //TH1 = inival;
  82   1              //TL1 = inival;
  83   1      }
  84          
  85          /*******************************************************************************
  86          //*   
  87          //*!  Function:    UART_send char
  88          //*!
  89          //*!  Description: 
  90          //*!               - A newdata can write into the SBUF of the UART, then it is 
  91          //*!               transfered to a destination soon.
  92          //*!
  93          //*!  Inputs:      newdata
  94          //*!
  95          //*!  Returns:     none
  96          //*
  97          /*******************************************************************************
  98          /*/
  99          void UartSendChar(uchar dat)
 100          {
 101   1          TI = 0;                         //clear Transmition symbol 
 102   1          SBUF = dat;
 103   1              for(;;)
 104   1              {
 105   2                if(TI)
 106   2                break;
 107   2                else
 108   2                ;
 109   2              }
 110   1              TI = 0;
 111   1      }
 112          
 113          /*******************************************************************************
 114          //*   
 115          //*!  Function:    UART_receive char
 116          //*!
C51 COMPILER V7.50   UART                                                                  03/06/2006 11:44:57 PAGE 3   

 117          //*!  Description: 
 118          //*!               - This function can receive a char using the SBUF of UART from 
 119          //*!               RXD pin of AP180
 120          //*!              
 121          //*!  Inputs:      None
 122          //*!
 123          //*!  Returns:     newdata
 124          //*
 125          /*******************************************************************************
 126          /*/
 127          /*
 128          uchar UartReceiveChar(void)
 129          {
 130              uchar z;
 131              RI = 0;
 132                  for(;;)
 133                  {
 134                    if(RI)
 135                    break;
 136                    else
 137                    ;
 138                  }
 139                  z = SBUF;
 140                  RI = 0;
 141                  return(z);
 142          }
 143          
 144          */


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     27    ----
   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)