uda1341.c

IIS测试 程序

//***************************************************************************
//	wave文件格式
//	任何wave文件,从字符串"data"后开始是4字节的PCM数据长度,接着为PCM裸数据
//	wave文件可以用 advanced mp3/wma recorder 软件生成

//	对于该软件生成的441khz,16bit立体声文件,0x36偏移处开始为4字节的PCM数据长度,接着为PCM裸数据
//	加上串口接收时的4byte的文件长度头应该是0x3a处开始,PCM数据从0x3e处开始

//	windows格式的wave文件,0x28偏移处开始为4字节的PCM数据长度,接着为PCM裸数据
//	加上串口接收时的4byte的文件长度头应该是0x2c处开始,PCM数据从0x30处开始

//	samplesize=*(pWave+0x2c) | *(pWave+0x2d)<<8 | *(pWave+0x2e)<<16 | *(pWave+0x2f)<<24;
//	i=0;
//	do
//	{
//		memcpy((char *)str_data,(char *)(pWave+i),4);
//		Uart_Printf("%d = %s",i,(char *)(pWave+i));
//		Uart_Printf("str= %s",str_data);
//		i++;
//	}while(strncmp(str_data,"data",4)!=0);
//	i+=3;
//	samplesize=*(pWave+i) | *(pWave+i+1)<<8 | *(pWave+i+2)<<16 | *(pWave+i+3)<<24;
//***************************************************************************

#include "def.h"
#include "WindowsXP_Wav.h"
void _WrL3Addr(U8 data);
void _WrL3Data(U8 data,int halt);


#define L3M (0x01)
#define L3D (0x200)
#define L3C (0x08)

U32 download_addr, download_len;
unsigned char *Buf,*_temp;
unsigned char *rec_buf;
#define PLAY 0


volatile unsigned int size=0;
volatile unsigned int leng,ssize;

volatile char mute=1;


#define	WAVE_FORMAT_PCM	0x0001


#define	MAX_VOLUME	61
static void AdjVolume(U16 volume)	
{	
	//volume = (volume*MAX_VOLUME)/0xffff;		    
	    
	_WrL3Addr(0x14 + 0);				//DATA0 (000101xx+00)
   	_WrL3Data(MAX_VOLUME-volume, 0);
}


void Init1341(char mode)
{    /****** Port Initialize ******/
   
 //   rPDATG = L3M|L3C;	//L3M=H(start condition)
     rPCONA=0x1ff;				//L3C=H(start condition)
    			
    rPCONG=0xFF7F;
    rPUPG=0xf;
    rPCONE=0x2aaa9;//0x6552a;//0x2B;	
	rPUPE=0xff;	
	rPCONF=0x24915a;//0x2A;
	rPUPF=0xff;;
	
    /****** L3 Interface ******/
    _WrL3Addr(0x14+2);	//status (000101xx+10)
    _WrL3Data(0x60,0); //0,1,10,000,0 reset,256fs,no DCfilter,iis
    _WrL3Addr(0x14+2); //status (000101xx+10)
    _WrL3Data(0x83,0);
    //1,0,0,0,0,0,11 OGS=0,IGS=0,ADC_NI,DAC_NI,sngl speed,AonDon
    AdjVolume(61);     
//record
    if(mode)
    {
	_WrL3Addr(0x14+2); //STATUS (000101xx+10)
	_WrL3Data(0xe3,0); //1,0,1,0,0,0,10	: OGS=0,IGS=1,ADC_NI,DAC_NI,sngl speed,AonDoff

	_WrL3Addr(0x14+0); //DATA0 (000101xx+00)
	_WrL3Data(0xc2,0); //11000,010	: DATA0, Extended addr(010) 
	_WrL3Data(0x4d,0); //010,011,01	: DATA0, MS=9dB, Ch1=on Ch2=off, 
     }
//record
}

/****************************************************************************
Name	:  	Play_SmallWave
Function:	播放1M以下的wav文件,采用DMA方式
Input	:	addr----------wav文件起始地址
			samplesize----wav文件长度
Return	:	
说明	:	
****************************************************************************/
void Play_SmallWave(U32 addr, U32 size)
{
    unsigned char *pWave;
    U32 samplesize;
  

	//ChangePllValue(0x69,0x17,0x0);
	rPLLCON=(0x69<<12)|(0x17<<4)|0x0;
	pWave=(unsigned char *)addr;
	pWave+=0x28;
    samplesize=*(pWave+0) | *(pWave+1)<<8 | *(pWave+2)<<16 | *(pWave+3)<<24;

    samplesize=(samplesize>>1)<<1;
   
    Init1341(PLAY);
    
      /****** IIS Initialize ******/
    rIISCON=0x22;	//Tx DMA enable,Rx idle,prescaler enable
    rIISMOD=0x89;	//Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
    rIISPSR=0x33;	//Prescaler_A/B enable, value=3
    rIISFCON=0xa00;	//Tx/Rx DMA,Tx/Rx FIFO --> start piling....

    /****** BDMA0 Initialize ******/
    rBDISRC0=(1<<30)+(1<<28)+(U32)pWave;	//Half word,inc,pWave
    rBDIDES0=(1<<30)+(3<<28)+((U32)rIISFIF);	//M2IO,fix,IISFIF
    rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(1<<21)+(0<<20)+samplesize;
    rBDICNT0 |= (1<<20);//enable
  
    rBDCON0 = 0x0<<2;

 
    /****** IIS Tx Start ******/
    rIISCON |=0x1;
    while(1);

    /****** IIS Tx Stop ******/
    rIISCON=0x0;    //IIS stop
    rBDICNT0=0x0;   //BDMA stop

   // rINTMSK=BIT_GLOBAL;
     
}

void _WrL3Addr(U8 data)
{
    U32 vPdata = 0x0;
    U32 vPdatg = 0x0;	//L3M=L(in address mode)/L3C=L
    S32 i,j;

    rPDATE = vPdatg;	//L3M=L
    rPDATG |= L3C;	//L3C=H

    for(j=0;j<4;j++);		//tsu(L3) > 190ns

    //PA9:L3D PGE0:L3M PG3:L3C
    for(i=0;i<8;i++)		
    {
	if(data&0x1)//if data bit is 'H'
	{
	    rPDATG = vPdatg;	//L3C=L
	    rPDATA = L3D;	//L3D=H		    
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	    rPDATG = L3C;	//L3C=H
	    rPDATA = L3D;	//L3D=H
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	}
	else		//if data bit is 'L'
	{
	    rPDATG=vPdatg;	//L3C=L
	    rPDATA=vPdata;	//L3D=L
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	    rPDATG=L3C;		//L3C=H
	    rPDATA=vPdata;	//L3D=L
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	}
	data >>=1;
    }
    rPDATG = L3C;	//L3C=H
	rPDATE=L3M;
}

void _WrL3Data(U8 data,int halt)
{
    U32 vPdata = 0x0;   //L3D=L
    U32 vPdatg = 0x0;	//L3M/L3C=L
    S32 i,j;
    if(halt)
    {
        rPDATG=L3C;	    //L3C=H(while tstp, L3 interface halt condition)
        for(j=0;j<4;j++);   //tstp(L3) > 190ns
    }
     rPDATE=L3M;
     rPDATG=L3C;	//L3C=H,L3D=H
     for(j=0;j<4;j++);	
   
   
   //PA9:L3D PGE0:L3M PG3:L3C
    for(i=0;i<8;i++)
    {
        if(data&0x1)	//if data bit is 'H'
        {
	        rPDATG=vPdatg;		//L3C=L
            rPDATA=L3D;		//L3D=H
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
            rPDATG=L3C;	//L3C=H,L3D=H
            rPDATE=L3M;
	        rPDATA=L3D;
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
        }
        else		//if data bit is 'L'
        {
            rPDATG=L3M;		//L3C=L
	    rPDATA=vPdatg;	//L3D=L
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
            rPDATG=L3C;	//L3C=H,L3D=H
            rPDATE=L3M;
	    rPDATA=vPdatg;	//L3D=L
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
        }
        data>>=1;
    }
   rPDATG=L3C;	//L3C=H,L3D=H
// //  
   rPDATE=L3M;
}
void IISMain(void)
{
		unsigned char *buf;
		int i;
	
		download_addr = 0xc700000;
		
		buf = (unsigned char *)download_addr;
		for( i = 0; i < 243552; i++ )  buf[i] = WindowsXP_Wav[i] ;
		download_len = 243552 ;
	Play_SmallWave(download_addr, download_len);
}