isd1700c.1.txt

适合at89c51 isd1700一起运行

isd17系列的驱动程序，已经调试通过的，替换一停产的isd1420 isd2560 isd14系列 isd25系列的 最新芯片，音质性能比isd1420系列有明显提高。 有问题可以一起学习。

  
/**********************************************************************   
 *Copyright (c) 2007,   
 * 工程名称：   
 * 摘    要：   
 ***********************************************************************   
 * qq 174825484  [e-mail]   
 *   
 * 完成日期：   
//------------------------------------------------------------------   
   
void delay(uint msec)   
{   
    for (msec; msec > 0; msec--)   
    {   
        clrwatchdog();   
        delay_50us(20);   
    }   
}   
    
uchar spio(uchar BUF_ISD) //shaoliang   
{   
 uchar i,dat=BUF_ISD;   
 SCLK=1;   
 SS=0;   
 for(i=0;i<8;i++)   
 {   
     SCLK=0;    
     _nop_(); _nop_();_nop_(); _nop_(); _nop_();              
      if(dat&amt;0X01)  MOSI=1;   
      else          MOSI=0;        
     dat>>=1;   
     if(MISO)               
        dat=(dat|0X80);                
      SCLK=1;   
      _nop_(); _nop_(); _nop_(); _nop_();_nop_();   
 }   
 MOSI=0;    
 return(dat);     
}      
 void rdstatus()   
{   
 spio(0x05);   
 spio(0x00);   
 spio(0x00);   
 SS=1;   
 //delay(100);               //延迟100ms   
 SR0_L=spio(0x05);   
 SR0_H=spio(0x00);   
 SR1=spio(0x00);   
}     
void clrint()   
{   
    spio(0x04);     spio(0x00);     SS=1;      
   
}    
 pu()        //power up   
{   
   spio(0x01);      spio(0x00);     SS=1;     
    delay(120);     
}    
void pd()       //power down   
{   
    spio(0x07);     spio(0x00);     SS=1;   
    delay(100);   
}     
void reset()   
{   
    spio(0x03);     spio(0x00);     SS=1;   
    delay(100);   
}     
void chk_mem()   
{   
    spio(0x49);     spio(0x00);     SS=1;    delay(150);   
}   
/*   
void rd_apc()   
{   
 spio(0x44);spio(0x00); spio(0x00);spio(0x00);   
 SS=1;   
 spio(0x44);spio(0x00); APCL=spio(0x00);APCH=spio(0x00);   
}   
void playall()   
{   
    spio(0x40);     spio(0x00);     SS=1;   
}   
void wr_apc1()      //线路输入，aud输出    
{   
    spio(0x45);     spio(0x00);     spio(0x04);     // d7:d0   d11:d8   
    SS=1;  delay(1) ;   
}   
void rec()   
{   
 spio(0x41);   spio(0x00);     SS=1;   
}    
void erase()   
{   
    spio(0x42);     spio(0x00);     SS=1;   
}   
    
void eraseall()   
{   
    spio(0x43);     spio(0x00);     SS=1;   
}   
void rd_play_ptr()   
{   
    spio(0x06);     spio(0x00);     spio(0x00);     spio(0x00);   
    SS=1;      
}   
void devid()                      
{   
    spio(0x09);spio(0x00);spio(0x00);   
    SS=1;      
    spio(0x09);spio(0x00);ID=spio(0x00);           
}   
   
senddata()   
{   
    SBUF=SR0_L;     while(TI==0);   TI=0;          
    SBUF=SR0_H ;    while(TI==0);   TI=0;          
    SBUF=SR1;       while(TI==0);   TI=0;      
}   
*/    
void stop()    
{    
    spio(0x02);spio(0x00); SS=1;    
}    
    
setplay(uchar segment)    
{    
    switch (segment)     
    {    
        case 1:    
            spio(0x80);spio(0x00); spio(0x10);spio(0x00);spio(0x2a);spio(0x00);SS=1;    
            break;     
        case 2:    
            spio(0x80);spio(0x00); spio(0x2B);spio(0x00);spio(0x41);spio(0x00);SS=1;    
            break;    
        case 3:    
            spio(0x80);spio(0x00); spio(0x42);spio(0x00);spio(0x4e);spio(0x00);SS=1;    
            break;    
        case 4:    
            spio(0x80);spio(0x00); spio(0x4F);spio(0x00);spio(0x62);spio(0x00);SS=1;    
            break;    
        case 5:    
            spio(0x80);spio(0x00); spio(0x63);spio(0x00);spio(0x70);spio(0x00);SS=1;    
            break;    
        case 6:    
            spio(0x80);spio(0x00); spio(0x71);spio(0x00);spio(0x80);spio(0x00);SS=1;    
            break;    
        case 7:    
            spio(0x80);spio(0x00); spio(0x81);spio(0x00);spio(0x9e);spio(0x00);SS=1;    
            break;    
        case 8:    
            spio(0x80);spio(0x00); spio(0x9F);spio(0x00);spio(0xaf);spio(0x00);SS=1;    
            break;    
        case 9:    
            spio(0x80);spio(0x00); spio(0xB0);spio(0x00);spio(0xBc);spio(0x00);SS=1;    
            break;    
        case 10:    
            spio(0x80);spio(0x00); spio(0xBD);spio(0x00);spio(0xCB);spio(0x00);SS=1;    
            break;    
        default:    
             spio(0x80);spio(0x00); spio(0x10);spio(0x00);spio(0x2a);spio(0x00);SS=1;    
            break;             
    }    
}    
    
initisd1700()    
{    
dd: pu();   //上电    
    
    if((PU_1700==0||CMD_ERR==1) &amt;&amt;ISDEvent!=10)    
    {               
         ISDEvent++;                             
         reset();     
         pd();              
         goto dd;                  
    }    
    ISDEvent=0;    
}    
  /*   
void isdmain()   
{   
       
    uchar serial=0;   
    uint aa=0;   
        delay(1000);               
    TMOD=0x20;   
    TL1=0xfd;TH1=0xfd;         //波特率9600 8数据 1停止   
    SCON=0xd8;PCON=0x00;   
    TR1=1;      
    P0=0xFF;P2=0xFF; MOSI=0;         
    LED1=0;   
    SBUF=0x55;while(TI==0); TI=0;   
    SBUF=0xAA;while(TI==0); TI=0;      
    
dd: pu();   //上电   
    rdstatus();   
    senddata();   
//  SBUF=SR0_L;   while(TI==0); TI=0; //////////////////   
    if(PU_1700==0||CMD_ERR==1)   
    {              
         reset();    
         pd();             
         SBUF=0xAB;   while(TI==0); TI=0;    //   
         goto dd;        
    }    
    clrint();   
    rdstatus();   
    senddata();   
   
     devid();   
     SBUF=0xDD;     while(TI==0);   TI=0; //////////////////   
     SBUF=ID;       while(TI==0);   TI=0;    
   
    // wr_apc1();   
     rd_apc();    
         SBUF=0xAC;     while(TI==0);   TI=0;    
          SBUF=APCH;    while(TI==0);   TI=0;    
           SBUF=APCL;       while(TI==0);   TI=0;     
   
         
   
 aa:  setplay(1);   
               
     rdstatus();   
     senddata();                          //////////////////   
     if(CMD_ERR==1)    
  {   
     clrint();   
     SBUF=0xBC;   while(TI==0); TI=0;   
     goto aa;    
  }    
         
        
  while(1)   
 {     
    if(key3==0)delay(20);   
        {   
        if(key3==0)    
        {   
            clrint();   
            chk_mem();   
            while(key3==0)   
            {   
                rec();   
                rdstatus();   
                    while(REC_1700)    
                    {   
                        delay(50);   
                        LED1=!LED1;   
                        SBUF=0xCD;    while(TI==0); TI=0;    
                    }          
            }   
            clrint();   
            stop();   
            //delay(50);LED1=!LED1;   
         }     
    }   
   
    if(key1==0) delay(20) ;   
    {   
        if(key1==0)   
        {   
          //    stop();   
             cc: chk_mem();     
          playall();    
          clrint();   
            rdstatus();   
            senddata();                         
            if(CMD_ERR)    
          {   
             SBUF=0xBC;   while(TI==0); TI=0;   
             goto cc;    
          }    
          while(key1==0);   
       
        }   
           
    }        
   LED2=!LED2;  delay(50);//SBUF=0x1a;while(TI==0); TI=0;         
 }   
}    
   
*/    
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