C51 COMPILER V6.23a  TDA7313                                                               08/20/2002 16:54:32 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE TDA7313
OBJECT MODULE PLACED IN Tda7313.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE Tda7313.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /* YuanGao electronic designe co.ldt
   2             (c) Copyright 2000,2001, All Rights Reserved  */
   3          
   4          #include "global.h"
   5          #include "util.h"
   6          #include "i2c.h"
   7          #include "tda7313.h"
   8          
   9          
  10          #define     TDA7313_address   0x88
  11          #define     VOL_control       0x00              /* 0x00 is large ;0x3f is smell */
  12          
  13          
  14          #define     SPEAKER_ATT_LR    0xC0
  15          #define     SPEAKER_ATT_RR    0xE0
  16          #define     SPEAKER_ATT_LF    0x80
  17          #define     SPEAKER_ATT_RF    0xA0
  18          #define     AUDIO_SW          0x40
  19          
  20          
  21          unsigned char  idata volume_level;
  22          unsigned char  treble_level;
  23          unsigned char  loudness_sw;
  24          unsigned char  loudness_level;
  25          #define        LOUDNESS_OFF    0x04
  26          
  27          unsigned char code vol_cont_table[]  ={0x3F,0x3D,0x3B,0x39,0x37,0x35,0x33,0x31,
  28                                                 0x2F,0x2D,0x2B,0x29,0x27,0x25,0x23,0x21,
  29                                                 0x1F,0x1D,0x1B,0x19,0x17,0x15,0x13,0x11,
  30                                                 0x0F,0x0D,0x0B,0x09,0x07,0x05,0x03,0x00};
  31          
  32          
  33          void Audio_Input_Switch(unsigned char AUDSW)
  34          {
  35   1      
  36   1                 if(loudness_sw){
  37   2                    AUDSW &= LOUDNESS_OFF;
  38   2                 }
  39   1                 else  AUDSW |= LOUDNESS_OFF;
  40   1      
  41   1                 write_i2c(TDA7313_address,AUDIO_SW|AUDSW); 
  42   1             
  43   1      }
  44          
  45          void Volume_Control(unsigned char vol_data)
  46          {
  47   1                //unsigned char vol;
  48   1                BYTE vol;
  49   1                if(vol_data >= 32) return;
  50   1      
  51   1                vol = vol_cont_table[vol_data];      
  52   1                write_i2c(TDA7313_address,vol);
  53   1      }
  54          
  55          #if 0
C51 COMPILER V6.23a  TDA7313                                                               08/20/2002 16:54:32 PAGE 2   

              void Speaker_Attenuators(unsigned char SP_n,unsigned char sp_data)
              {
              
                        unsigned char speaker_att;
                        unsigned char speaker_n;
              
                        speaker_n = SP_n;
              
                        if(sp_data >= 40) {
                            sp_data = 0x1f;   /*mute*/
                        }
                        else
                          speaker_att = speaker_n | ((sp_data/8)<<3) | (sp_data%8);
              
                        write_i2c(TDA7313_address,speaker_att);
              
              
              
              }
              
              #endif
  77          
  78          
  79          
  80          
  81          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     39    ----
   CONSTANT SIZE    =     32    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =      1    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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