mcu_uart.lst

基于at89c51单片机的mp3键盘中断实验代码

C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:22:16 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

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          CKCON |=0x10;
  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          
  32          /*
  33          char uart_getch()
  34          {
  35                   while (!RI);
  36                   RI = 0;
  37                   return SBUF;
  38          }
  39          
  40          void uart_putch(char ch)
  41          {
  42                   SBUF = ch;
  43                   while (!TI);
  44                   TI = 0;        
  45          }
  46          
  47          */
  48          
  49          void printu(char * str) 
  50          {       
  51   1          char *ct = str;
  52   1              while (*ct != '\0')
  53   1              {
  54   2                      if (*ct == '\n')
  55   2                      {
C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:22:16 PAGE 2   

  56   3                              SBUF = 13;
  57   3                              while (!TI);
  58   3                              TI = 0;
  59   3                      }
  60   2                      SBUF=*ct;
  61   2                      while (!TI);
  62   2                      TI = 0;
  63   2                      ct++;
  64   2              }
  65   1      }
  66          
  67          
  68          void printuf(char *str, unsigned char cb) 
  69          {
  70   1              char *ct = str;
  71   1              while (*ct != '\0')
  72   1              {
  73   2                      if (*ct == '%')
  74   2                      {       
  75   3                              if (*(ct + 1) == 'x')              
  76   3                                {
  77   4                                      ct += 2;
  78   4                                      SBUF = hex[cb/16];
  79   4                                      while (!TI);
  80   4                                      TI = 0;
  81   4                                      SBUF = hex[cb%16];
  82   4                                      while (!TI);
  83   4                                      TI = 0;
  84   4                                      continue;
  85   4                                }
  86   3                              if (*(ct + 1) == 'd')              
  87   3                                {
  88   4                                      ct += 2;
  89   4                                      if(cb/100)
  90   4                                         {SBUF = cb/100+0x30;
  91   5                                              while (!TI);
  92   5                                          TI = 0;}
  93   4                                      if(cb/10)
  94   4                                         {SBUF = (cb%100)/10+0x30;
  95   5                                              while (!TI);
  96   5                                          TI = 0;}
  97   4                                      SBUF = cb%10+0x30;
  98   4                                      while (!TI);
  99   4                                      TI = 0;                         
 100   4                                      continue;
 101   4                            }
 102   3                              if (*(ct + 1) == 'c')              
 103   3                                {
 104   4                                      ct += 2;
 105   4                                      SBUF = cb;
 106   4                                      while (!TI);
 107   4                                      TI = 0;
 108   4                                      continue;
 109   4                                }
 110   3                              
 111   3                      }
 112   2                      if (*ct == '\n')
 113   2                      {
 114   3                              SBUF = 13;
 115   3                              while (!TI);
 116   3                              TI = 0;
 117   3                      }
C51 COMPILER V7.50   MCU_UART                                                              01/15/2006 18:22:16 PAGE 3   

 118   2                      SBUF = *ct;
 119   2                      while (!TI);
 120   2                      TI = 0;
 121   2                      ct++;
 122   2              }
 123   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    257    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     16    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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