subdir.h

在基于avr内核的单片机上实现MP3播放器的功能

void SubDirSev(DATA_POSIT * Mumdir_posit,DATA_POSIT * dir_posit)
 { 
   //DATA_POSIT   MUMDirPosit=*  Mumdir_posit;  //have we can back ,lost it we will lost  
   
	F_handle=GetDirFilehd(dir_posit);//open it get it dat org clus
	BroserHd.DirPosit=F_handle.dat_posit;
	
BroserHd.boyid=0;
FullBroserHd(&(BroserHd.DirPosit),"?.?");
DrawBroserboys(BroserHd.boyid);
uint8 i=0;
while(1) 
  {
  if(MouseMsg){ //have a mouse mesage
        
        if(MouseMsg&(1<<RightBtn)) {Key1SW=off;MouseMsg=0;break;}
        else if(MouseMsg&(1<<LeftBnt)) {  BroserHd.boyid++;}
		else  if(MouseMsg&0xf0){
		         if((MouseMsg&0xf0)<=0x80)  BroserHd.boyid++;
		         else  {if(BroserHd.boyid) BroserHd.boyid--;} 
				}
		 MouseMsg=0;}//always do it  clr the msg 
		 
	if(Key0SW) { BroserHd.boyid++; Key0SW=off;}
    if(Key1SW==off) break;
  //===========================
       if(BroserHd.boyid<Browboysize)
       DrawBroserboys(BroserHd.boyid);
       else {BroserHd.boyid=0;FullBroserHd(&(BroserHd.DirPosit),"?.?");
       DrawBroserboys(BroserHd.boyid);}
  
	OSTaskSuspend(1);
			
  } 

}