Table of Contents
Chapter 1
Introduction .......................................................................................... 15
1-1
What Is a File System? ........................................................................ 15
1-2
μC/FS .................................................................................................... 16
1-3
Typical Usages ..................................................................................... 17
1-4
Why FAT? ............................................................................................. 18
1-5
Chapter 2
μC/FS Architecture .............................................................................. 22
2-1
Architecture Components ................................................................... 24
2-1-1
Your Application ................................................................................... 24
2-1-2
LIB (Libraries) ....................................................................................... 24
2-1-3
POSIX API Layer .................................................................................. 24
2-1-4
FS Layer ............................................................................................... 24
2-1-5
File System Driver Layer ...................................................................... 26
2-1-6
Device Driver Layer .............................................................................. 26
2-1-7
CPU Layer ............................................................................................ 26
2-1-8
Chapter 3
Directories and Files ............................................................................ 28
3-1
Application Code ................................................................................. 31
3-2
CPU ....................................................................................................... 33
3-3
Board Support Package (BSP) ............................................................ 34
3-4
μC/CPU, CPU Specific Source Code .................................................. 35
3-5
μC/LIB, Portable Library Functions ..................................................... 37
3-6
μC/Clk, Time/Calendar Management .................................................. 38
3-7
μC/CRC, Checksums and Error Correction Codes ............................ 40
3-8
μC/FS Platform-Independent Source Code ........................................ 42
3-9
μC/FS FAT Filesystem Source Code ................................................... 45
3-10
μC/FS Memory Device Drivers ............................................................ 46
3