File system about read filename

Hi,

I used bf548 to read SD card's filename.

The additional DMV.7z, Decompress it, then copy DMV1000 directory to SD card.

I used this codes to read this DMV1000 directory's files:

void SDCARD_TEST(void)
{
struct dirent *pDirEntry = NULL;
DIR *pDir = NULL;

while(chdir("..") == 0) ; // go to root

chdir("DMV1000");

pDir = opendir(".");
if(pDir != NULL)
{
do
{
pDirEntry = readdir(pDir);
if (pDirEntry != NULL)
{
printf("\n%s", pDirEntry->d_name);
}
} while (pDirEntry);
}
closedir(pDir);

}

It only get ".","..", and "P040" directory name,but can not get DSP 94.txt, MCU 146.txt filenames.

blackfin