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本源代码在Ubuntu9.10环境下用arm-linux-gcc 4.3.2编译通过，并在勤研2440开发板上验证过可以播放采样频率为22050HZ的音频WAV文件

#include “def.h”<br /> #include “iis.h”<br /> #include “s3c24xx.h”<br /> #define L3M (1<<2)<br /> #define L3D (1<<3)<br /> #define L3C (1<<4)<br /> unsigned char *Buf = (unsigned char *)0x31000000;<br /> //data chunk size<br /> unsigned int size = 0;<br /> //sampling frequency<br /> unsigned int fs = 0;<br /> //————————————————————-<br /> // S3C2440A IIS Configuration<br /> // GPB4 = L3CLOCK, GPB3 = L3DATA, GPB2 = L3MODE<br /> // GPE0 = I2SLRCK, GPE1 = I2SSCLK, GPE3 = I2SSDI, GPE4 = I2SSDO, GPE2 = CDCLK<br /> //————————————————————-<br /> void Play_WAV(void)<br /> {<br /> Printf(“[ IIS test using WM8976 CODEC ]/r/n”);<br /> IIS_PortSetting();<br /> Init8976();<br /> //set INT_DMA2 interrput service is available<br /> INTMSK &= ~(1 << 19);</p> <p> fs = *(Buf