loadmp3data.c

外挂硬盘式解码程序

#ifndef _MP3DECODER_DEFINE
 #include "MP3DECODER.c"
#endif

void LoadMP3Data(BYTE file);

void LoadMP3Data(BYTE file)
{
	data BYTE k,vol,vor;
	xdata WORD i;

	EMP3=0;
	MP3.File=file;						//初始化控制结构
	MP3.Point=0;


	#ifdef DEBUG
		printf("Loading data...\n");
	#endif
	vol=MP3VOL;vor=MP3VOR;
	MP3VOL=0;MP3VOR=0;

	//装载1k数据
	if (FAT32ReadFile(MP3.File)!=512) {printf("File error\n");return;}
	for(MP3.Point=0;MP3.Point<512;MP3.Point++)
		MP3DAT=DiskBuffer[MP3.Point];

	if (FAT32ReadFile(MP3.File)!=512) {printf("File error\n");return;}
	for(MP3.Point=0;MP3.Point<512;MP3.Point++)
		MP3DAT=DiskBuffer[MP3.Point];

	FAT32ReadFile(MP3.File);
	MP3.Point=0;
	MP3CON=0xb7;				//启动解码器

	InitAudioInterface(DACFs[k=MP3STA&0x03]);		//初始化DAC
	printf("Fs:%bd\n",Fs[k]);
	MP3.Playing=1;
	EMP3=1;						//MP3开中断

	
	for(i=0;i<50000;i++);
	MP3VOL=vol;MP3VOR=vor;	
	return;
}