mcu_uart.lst

基于at89c51单片机的mp3 U盘原理实验代码

C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:40:28 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE MCU_UART
OBJECT MODULE PLACED IN MCU_UART.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE MCU_UART.C LARGE ROM(COMPACT) BROWSE

line level    source

   1          /*  Copyright (C) 1996-2005 Brilliant Ideal Electronics. All rights reserved.
   2                  MP3_Player+USB_Disk V3.0 Edit by JMBIE STUDIO 2005.03
   3          */
   4          
   5          
   6          #include "AT89C51SND1_REG.H"
   7          #include "MCU_UART.H"
   8          
   9          char hex[16]  = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
  10          
  11          void init_uart()  //   Baud rate 9600
  12          {  
  13   1      //Using the T1 as Baud Rate Generater.
  14   1          CKCON |=0x04;
  15   1              TMOD = 0x20;
  16   1              TH1  = 0xf5;
  17   1              TL1  = 0xf5;
  18   1              SCON = 0x50;
  19   1              PCON = PCON|0x80;
  20   1              TR1  = 1;
  21   1      /*
  22   1      //Using Internal Baud Rate Generater.
  23   1      
  24   1              SCON = 0x50;
  25   1              PCON = PCON|0x80;
  26   1              BRL  = 0xbf;
  27   1              BDRCON |=0x0c; //TBCK=1,RBCK=1
  28   1              BDRCON |=0x02; //SPD=1
  29   1              BDRCON |=0x10; //BRR=1,enable BRG 
  30   1      */
  31   1      } 
  32          
  33          /*
  34          char uart_getch()
  35          {
  36                   while (!RI);
  37                   RI = 0;
  38                   return SBUF;
  39          }
  40          
  41          void uart_putch(char ch)
  42          {
  43                   SBUF = ch;
  44                   while (!TI);
  45                   TI = 0;        
  46          }
  47          
  48          */
  49          
  50          void printu(char * str) 
  51          {       
  52   1          char *ct = str;
  53   1              while (*ct != '\0')
  54   1              {
  55   2                      if (*ct == '\n')
C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:40:28 PAGE 2   

  56   2                      {
  57   3                              SBUF = 13;
  58   3                              while (!TI);
  59   3                              TI = 0;
  60   3                      }
  61   2                      SBUF=*ct;
  62   2                      while (!TI);
  63   2                      TI = 0;
  64   2                      ct++;
  65   2              }
  66   1      }
  67          
  68          /*
  69          void printuf(char *str, unsigned char cb) 
  70          {
  71                  char *ct = str;
  72                  while (*ct != '\0')
  73                  {
  74                          if (*ct == '%')
  75                          {       
  76                                  if (*(ct + 1) == 'x')              
  77                                    {
  78                                          ct += 2;
  79                                          SBUF = hex[cb/16];
  80                                          while (!TI);
  81                                          TI = 0;
  82                                          SBUF = hex[cb%16];
  83                                          while (!TI);
  84                                          TI = 0;
  85                                          continue;
  86                                    }
  87                                  if (*(ct + 1) == 'd')              
  88                                    {
  89                                          ct += 2;
  90                                          if(cb/100)
  91                                             {SBUF = cb/100+0x30;
  92                                                  while (!TI);
  93                                              TI = 0;}
  94                                          if(cb/10)
  95                                             {SBUF = (cb%100)/10+0x30;
  96                                                  while (!TI);
  97                                              TI = 0;}
  98                                          SBUF = cb%10+0x30;
  99                                          while (!TI);
 100                                          TI = 0;                         
 101                                          continue;
 102                                }
 103                                  if (*(ct + 1) == 'c')              
 104                                    {
 105                                          ct += 2;
 106                                          SBUF = cb;
 107                                          while (!TI);
 108                                          TI = 0;
 109                                          continue;
 110                                    }
 111                                  
 112                          }
 113                          if (*ct == '\n')
 114                          {
 115                                  SBUF = 13;
 116                                  while (!TI);
 117                                  TI = 0;
C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:40:28 PAGE 3   

 118                          }
 119                          SBUF = *ct;
 120                          while (!TI);
 121                          TI = 0;
 122                          ct++;
 123                  }
 124          }
 125          */


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     57    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =     16    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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