fang.c

语音程序 包括放音与录音

#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char 
sbit SS=P2^0;
sbit MOSI=P2^1;
sbit MOSO=P2^2;
sbit ISD_SCK=P2^3;
sbit INTT=P2^4;
sbit p07=P0^7;
sbit p27=P2^7;

void del10ms()
{
     uchar i,j;
     for(i=0;i<10;i++)
       for(j=0;j<121;j++);       
}
void del40ms()
{
    uchar i,j;
   for(i=0;i<40;i++)
    for(j=0;j<121;j++);
}
void ISD4003(uchar ISD_HDATA,uchar ISD_LDATA)
{  uchar i;
   SS=0;
   ISD_SCK=0;
   for(i=0;i<8;i++)
   {
     ISD_LDATA>>=1;
     MOSI=CY;
     _nop_();
     _nop_();
     ISD_SCK=1;
     _nop_();
     _nop_();
     ISD_SCK=0;
     _nop_();
     
    }
    for(i=0;i<8;i++)
   {
     ISD_HDATA>>=1;
     MOSI=CY;
     _nop_();
     _nop_();
     ISD_SCK=1;
     _nop_();
     _nop_();
     ISD_SCK=0;
     _nop_();
    }
   SS=1;
}
void ISD_play(uchar hh,uchar h,uchar l)
{   
    p27=0;
    ISD4003(hh,l);
    _nop_();
    ISD4003(h,l);
    while(1)
    {
      if(INTT==0)
      {
       p27=1;
       break;
       }

    }

}
/***上电*/
void up_power()
{
  ISD4003(0X20,0X00);
  del40ms();
}
void scan_key()
{
     uchar j,i,key;
     j=0xfe;
	 key=0xff;
  
	for (i=0;i<4;i++)
    {	del10ms();	
		P0=j; 
		if ((P0&0xf0)!=0xf0)
         {									
			key=P0;				
			break;		
		  }
	  j=_crol_(j,1);//左循环一次		
     }
   
   switch (key)
     { case 0x7e:
       { ISD_play(0xe0,0xf0,0x28);
         break;
       }
      case 0x7d:
       { ISD_play(0xe0,0xf0,0x50);
       
        break;}
      case 0x7b:
        { ISD_play(0xe0,0xf0,0x78);
         break;}
       case 0x77:
        {ISD_play(0xe0,0xf0,0xa0);
         break;
         }
        case 0xbe:
       { ISD_play(0xe0,0xf0,0xa0);
         break;
       }
      case 0xbd:
       { ISD_play(0xe0,0xf0,0xc8);
       
        break;}
      case 0xbb:
        { ISD_play(0xe0,0xf0,0xf0);
         break;}
       case 0xb7:
        {ISD_play(0xe0,0xf0,0xa0);
         break;
         }
      
      }                

}
void main()
{
  up_power();
   while(1)
   {
     scan_key();
    
    }
   
}