mcu_uart.lst

mp3c程序源码

C51 COMPILER V7.50   MCU_UART                                                              11/18/2005 21:31:22 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 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(int fre)
  12          {  
  13   1              if (fre == 1200)         //only support 1200 Baud rate
  14   1              {   CKCON |=0x04;
  15   2                      TMOD = 0x20;
  16   2                      TH1  = 0xa9;
  17   2                      TL1  = 0xa9;
  18   2                      SCON = 0x50;
  19   2                      PCON = PCON|0x80;
  20   2                      TR1  = 1;
  21   2              }
  22   1      }
  23          
  24          
  25          void printu(char * str) 
  26          {       
  27   1          char *ct = str;
  28   1              while (*ct != '\0')
  29   1              {
  30   2                      if (*ct == '\n')
  31   2                      {
  32   3                              SBUF = 13;
  33   3                              while (!TI);
  34   3                              TI = 0;
  35   3                      }
  36   2                      SBUF=*ct;
  37   2                      while (!TI);
  38   2                      TI = 0;
  39   2                      ct++;
  40   2              }
  41   1      }
  42          
  43          
  44          void printuf(char *str, unsigned char cb) 
  45          {
  46   1              char *ct = str;
  47   1              char cx1;
  48   1              char cx2;
  49   1      
  50   1              while (*ct != '\0')
  51   1              {
  52   2                      if (*ct == '%')
  53   2                      {       
  54   3                              if (*(ct + 1) == 'x')              
  55   3                              {
C51 COMPILER V7.50   MCU_UART                                                              11/18/2005 21:31:22 PAGE 2   

  56   4                                      ct += 2;
  57   4                                      cx1 = cb / 16;
  58   4                                      cx2 = cb % 16;
  59   4                                      SBUF = hex[cx1];
  60   4                                      while (!TI);
  61   4                                      TI = 0;
  62   4                                      SBUF = hex[cx2];
  63   4                                      while (!TI);
  64   4                                      TI = 0;
  65   4                                      continue;
  66   4                              }
  67   3                              if (*(ct + 1) == 'c')              
  68   3                              {
  69   4                                      ct += 2;
  70   4                                      SBUF = cb;
  71   4                                      while (!TI);
  72   4                                      TI = 0;
  73   4                                      continue;
  74   4                              }
  75   3                              
  76   3                      }
  77   2                      if (*ct == '\n')
  78   2                      {
  79   3                              SBUF = 13;
  80   3                              while (!TI);
  81   3                              TI = 0;
  82   3                      }
  83   2                      SBUF = *ct;
  84   2                      while (!TI);
  85   2                      TI = 0;
  86   2                      ct++;
  87   2              }
  88   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    216    ----
   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)