File Name Warning & Limitations
File names in the AKD PDMM or PCMM flash storage are case-sensitive and the SD card (FAT16 or FAT32) are not case-sensitive.
Storage | File System | Case-Sensitive |
---|---|---|
AKD PDMM / PCMM embedded flash | FFS3 (POSIX-like) | Yes |
AKD PDMM / PCMM SD card | FAT16 or FAT32 | No |
For example, two files (MyFile.txt
and myfile.txt
) can exist in the same directory of the PDMM flash, but cannot exist in the same directory on the PDMM’s SD card. If you copy two files (via backup operation or function) with the same name, but different upper/lower case letters, from the PDMM flash to the SD card, one of the files will be lost. To prevent conflicts and to keep your application compatible across all platforms, use unique filenames and do not rely on case-sensitive filenames.