download.c

TMS320VC5402的中断程序和AIC23的音频输出解码程序,还有DSP的HPI自举程序.

                                                                                                                                                                
#include  <Reg52.h>        
#include  <absacc.h>
#include  <stdio.h>
#include  <intrins.h>
#include  <dspcode.h>  
/*定义宏*/
#define   uint unsigned  int
#define   uchar unsigned  char


/*定义寄存器端口地址*/
//#define   HPICL          XBYTE[0xe000]
//#define   HPICH          XBYTE[0xe100]
//#define   WR_HPIL0_D     XBYTE[0xe200]
//#define   WR_HPIH0_D     XBYTE[0xe300]
//#define   WR_HPIL_A      XBYTE[0xe400]
//#define   WR_HPIH_A      XBYTE[0xe500]
//#define   WR_HPIL1_D     XBYTE[0xe600]
//#define   WR_HPIH1_D     XBYTE[0xe700]


//my  definition
sbit	   DSPRST   =P1^6;
sbit       HCS		=P1^0;
sbit       HBIL		=P1^1;
sbit       HCN0		=P1^2;
sbit       HCN1		=P1^3;
sbit       HRW		=P1^4;
sbit       HDS		=P1^5;



void 	wr_dspcode();
void  	delay(uint  wu);


download()
{

     DSPRST=1;
     HDS=1;
	 HCS=1;
     
     delay(10000);
    
     DSPRST=0;
	 delay(1000);
	 DSPRST=1;				//	dsp reset
	 delay(10000);

	 HRW=0;

      wr_dspcode();

    
     
     while(1);

}

void  delay(uint  wu)
{
  for(wu;wu>0;wu--);
}


		      

void wr_dspcode()
{
     uchar  code   *dspptr/*,*temp*/;
     uchar len;
     char i;
     uint addr;
     
    // HPICL=0x08;  //clear HPIint,least is first
    // HPICH=0x08;
 	 HCS=0;
     P2=0x0;
     HBIL=0;
	 HCN0=0;
	 HCN1=0;
	 
	 HDS=0;
	 HDS=1;

	 HBIL=1;
	 HDS=0;
	 HDS=1;

     

     dspptr=dspcode;
     while(1)
     {
       len=*dspptr++;
       if(len==0) break;
       else
       {
         addr=((*dspptr++)*256)+(*dspptr++);

         addr--;

         P2=addr/256;
         HBIL=0; 
         HCN0=0;
		 HCN1=1;
		 HDS=0;
		 HDS=1;	   

	    // WR_HPIH_A=addr%256;
        
		 P2=addr%256;
		 HBIL=1;
		 HDS=0;
		 HDS=1;	   

		 for(i=0;i<len/2;i++)
         {  
           //WR_HPIL0_D=*dspptr++;       
         P2=*dspptr++;
   	     HBIL=0; 
         HCN0=1;
		 HCN1=0;
		 HDS=0;
		 HDS=1;	   
	   
		   
		  // WR_HPIH0_D=*dspptr++;                      

		  P2=*dspptr++;
          HBIL=1;
 		  HDS=0;
		  HDS=1;	   
		 
		 }
       }
     }
//     WR_HPIL_A=0x00; 
     
	 P2=0x0;
         HBIL=0; 
         HCN0=0;
		 HCN1=1;
		 HDS=0;
		 HDS=1;	   

//     WR_HPIH_A=0x7f;
  
       P2=0x7f;
	  
		 HBIL=1;
		 HDS=0;
		 HDS=1;	   
  
//     WR_HPIL1_D=0x00;    //THE START ADDRESS OF RUN
  
     P2=0x0;
  	    HBIL=0; 
         HCN0=1;
		 HCN1=1;
		 HDS=0;
		 HDS=1;	   
	  
 //    WR_HPIH1_D=0x80;        
     
      P2=0x80;
         
         HBIL=1; 
         HDS=0;
		 HDS=1;	   
	  

	 HCS=1;

}