extern static unsigned char volum,bass,tribl,ATT_LR,ATT_RR,ATT_LF,ATT_RF,mode;
extern void SendData1(unsigned char);
 
  flash char Tabl_tembr[]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x0F,0x0E,0x0D,0x0C,0x0B,0x0A,0x09,0x08};
 
void Init_pt2313()
{  
  SendData1(volum);
  SendData1(ATT_LR|0xC0);
  SendData1(ATT_RR|0xE0);
  SendData1(ATT_LF|0x80);
  SendData1(ATT_RF|0xA0);
  SendData1(mode|0x44);  
  SendData1(Tabl_tembr[bass]);   
  SendData1(Tabl_tembr[tribl]);    
}   


void Mute()
{
   SendData1(0x3F);
}
 void Vol_down()
 {
     if(volum<0x3F)volum++;
    SendData1(volum);
 }
 void Vol_up()
 {
     if(volum>0)volum--;
     SendData1(volum);
 }

 void Bass_down()
 { 
     if(bass>0)bass--;
    SendData1(Tabl_tembr[bass]|0x60);
 }
 void Bass_up()
 {
     if(bass<15)bass++;
   SendData1(Tabl_tembr[bass]|0x60);
}
 void Tribl_down()
 {
     if(tribl>0)tribl--;
     SendData1(Tabl_tembr[tribl]|0x70);
 }
 void Tribl_up()
 {
     if(tribl<15)tribl++;
   SendData1(Tabl_tembr[tribl]|0x70);
 }  
 
 void Ball_right()
 {  
  if(ATT_LF==0)
     {
      if(ATT_RF>=0x1F) ATT_RF++;
     }
     else{ 
            if(ATT_LF>0) ATT_LF--;
            }  
    SendData1(ATT_LF|0x80);
    SendData1(ATT_RF|0xA0);
 }
 void Ball_left()
 {
 if(ATT_RF==0)
     {
      if(ATT_LF>=0x1F) ATT_LF++;
     }
     else{ 
            if(ATT_RF>0) ATT_RF--;
            }  
    SendData1(ATT_LF|0x80);
    SendData1(ATT_RF|0xA0);
 }
 void SW_up()
 {
 if(ATT_RR==0)
     {
      if(ATT_LR<0x1F) ATT_LR++;
     }
     else{ 
            if(ATT_RR>0) ATT_RR--;
            }  
    SendData1(ATT_LR|0xC0);
    SendData1(ATT_RR|0xE0);
 }
 void SW_down()
 {
  if(ATT_RR==0)
     {
      if(ATT_RR<0x1F) ATT_RR++;
     }
     else{ 
            if(ATT_LR>0) ATT_LR--;
            }  
    SendData1(ATT_LR|0xC0);
    SendData1(ATT_RR|0xE0);
 }
void Void_mode()
{    
       if(++mode>3)mode=0; 
       SendData1(mode|0x44); 
}