这是我程序中用来播放wav文件的部分，和网上的许多程序都一样，程序运行很正常，但就是没有声音放出来，请教各位高手帮我分析一下，我用的是
arm 44b0的板子，想播放44.1KHz，单声道的wav文件：
void Play_SmallWave(U32 addr)
{
unsigned char *pWave;
U32 i;
unsigned short *pSteroWave;
U32 samplesize,start;
rPLLCON = (0x69 << 12) | (0x17 << 4) | 0;
Uart_Init(45200000,115200);
pWave=(unsigned char *)addr;
pWave+=0x28;
samplesize=*(pWave+0) | *(pWave+1)<<8 | *(pWave+2)<<16 | *(pWave+3)<<24;
pWave+=4;
start=(U32)(unsigned char *)pWave;
pSteroWave=(U16 *)start;
samplesize=(samplesize>>1)<<1;
Uart_Printf("\r\nsample start:0x%x",pWave);
Uart_Printf("\r\nsample size:%d\r\n",samplesize);
/****** IIS Initialize ******/
rIISCON=0x02;
rIISMOD=0x89;
rIISPSR=0x33;
rIISFCON=0x200;
Uart_Printf("\r\nNow play the wave file ...");
Uart_Printf("\r\nPush any key to exit!!!");
/****** IIS Tx Start ******/
rIISCON |=0x1;
while(!Uart_GetKey())
{
if(IIS_FIFOREADY)
{
for(i=0;i<8;i++)
{
*rIISFIF = *pSteroWave++;
}
if( ((U32)pSteroWave-start) > samplesize )
{
pSteroWave=(U16 *)start;
WrUTXH0('#');
}
}
}
/****** IIS Tx Stop ******/
rIISCON=0x0; //IIS stop
ChangePllValue(0x48,0x3,0x2);
Uart_Init(0,115200);
Uart_Printf("\r\nIIS IS OK!!!");
}
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