void wav_pre_read(void)
{
u32 index = 0;
flash_bytes_read(index, (u8 *)buffer1, 0x100);
while(WaveParsing());
WaveLen = WAVE_Format.DataSize;
I2S_Freq_Config(WAVE_Format.SampleRate);
}
void Wavplay(void)
{
FATFS fatfs;
FIL fileR;
UINT BytesRead;
u8 i=0;
f_mount(0, &fatfs);
f_open(&fileR, "0:/wav/1.wav" , FA_READ);
f_read(&fileR, buffer1, 1024, &BytesRead);
while(WaveParsing()) printf("file read error");
WaveLen = WAVE_Format.DataSize;
AUDIO_Init(WAVE_Format.SampleRate);
f_lseek(&fileR, WaveCounter);//跳过文件头
f_read(&fileR, buffer1, 1024, &BytesRead);
f_read(&fileR, buffer2, 1024, &BytesRead);
Audio_MAL_Play((u32)buffer1, 1024);
buffer_switch=1;
XferCplt=0;
while(WaveLen!=0)
{
while(XferCplt==0);
XferCplt=0;
if(buffer_switch==0)
{
Audio_MAL_Play((u32)buffer1,1024);//从buffer1播放
f_read(&fileR,buffer2,1024,&BytesRead);//填充buffer2
buffer_switch=1;
}
else
{
Audio_MAL_Play((u32)buffer2,1024);//从buffer2播放
f_read(&fileR,buffer1,1024,&BytesRead);//填充buffer1
buffer_switch=0;
}
i++;
if(i==100)
{
i=0;
}
}
}
