Introduction
Chapter 16, RAM Disk. This chapter demonstrates the use of the simplest storage
medium, the RAM disk.
Chapter 17, SD/MMC Devices. SD and MMC cards are flash-based removable storage
devices commonly used in consumer electronics. For embedded CPUs, a SD/MMC card is
an appealing medium because of its simple and widely-supported physical interfaces (one
choice is SPI). This chapter describes the interface and function of these devices.
Appendix A, μC/FS API Reference Manual. The reference manual describes every API
function. The arguments and return value of each function are given, supplemented by
notes about its use and an example code listing.
Appendix B, μC/FS Error Codes. This appendix provides a brief explanation of μC/FS
error codes defined in fs_err.h .
Appendix C, μC/FS Porting Manual. The portability of μC/FS relies upon ports to
interface between its modules and the platform or environment. Most of the ports constitute
the board support package (BSP), which is interposed between the file system suite (or
driver) and hardware. The OS port adapts the software to a particularly OS kernel. The
porting manual describes each port function.
Appendix D, μC/FS Types and Structures. This appendix provides a reference to the
μC/FS types and structures.
Appendix E, μC/FS API Configuration Manual. μC/FS is configured via defines in a
single configuration file, fs_cfg.h. The configuration manual specifies each define and the
meaning of possible values.
Appendix F, μC/FS Shell Commands. A familiar method of accessing a file system, at
least to engineers and computer scientists, is the command line. In an embedded system, a
UART is a port over which commands can be executed easily, even for debug purposes. A
set of shell commands have been developed for μC/FS that mirror the syntax of UNIX
utilities, as described in this chapter.
Appendix G, Bibliographhy.
Appendix H, Licensing Policy.
21
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