FatFs module is an experimental project to implement a FAT file system to small embdded system. Because the module is written in compliance with ANSI C, it can be used for most 8/16 bit microcontrollers, such as PIC, AVR, H8, Z80 and etc..., without any modification. To use the FatFs module, low level disk I/O functions for each recording media must be provided by user. I created two modules in different configurations in consideration of various use. For read only applications, wriiting codes can also be eliminated to reduce the code size.
Features of FatFs Module
- Separated buffer for FAT and each file. Suitable for fast multiple file accsess.
- Low memory consumption (ex. avr-gcc)
- Program Code: 7752 bytes (R/W cfg.), 4154 bytes (R/O cfg.)
- Static Work Area: 2 bytes
- Dynamic Work Area: 544 + 542 * <files> bytes
- Supports FAT16(+FAT64) and FAT32 (FAT64: FAT16 in 64KB/cluster)
- Supports 8.3 format file name and NT lower capital flags
- Supports two partitioning formats: FDISK (only primariy partition) and SFD (only 512B/sector)
Features of Tiny-FatFs Module
- Only a common buffer for FAT and each file to reduce memory consumption.
- Low memory consumption (ex. avr-gcc), suitable for small memory system (1KB)
- Program Code: 6470 bytes (R/W cfg.), 3556 bytes (R/O cfg.)
- Static Work Area: 2 bytes
- Dynamic Work Area: 538 + 24 * <files> bytes
- Supports FAT16(+FAT64)
- Supports 8.3 format file name and NT lower capital flags
- Supports two partitioning formats: FDISK (only primariy partition) and SFD (only 512B/sector)
