Using RL-FlashFS

Using RL-FlashFS shows how to create applications for managing files on Flash devices. RL-FlashFS can be used stand-alone or with the RTX-RTOS. RL-FlashFS cannot be used with the MicroLIB library.

The picture below explains the RL-FlashFS structure from a developer's perspective.

The logical picture block:

• System, File Management
  Represents functions to manage the system, such as file formatting, creating, finding, renaming, ...
• Standard File I/O
  Represents functions to manage data in files, such as reading, writing, printing, ...
• ARM Standard Run-Time Library
  Represents the library with functions to manage data in files.
• retarget.c
  Represents the abstraction hardware layer with functions to input and output data on various interfaces, such as screens, LCD displays, keyboards, SD Cards, ...
• File_Config.c
  Represents the configuration file with options to define the media characteristics.
• RL-FlashFS Library
  Represents the library with interface functions that handle low-level input and output file operations. Through the media type selected in the File_Config.c, RL-FlashFS detects the appropriate file system: FAT or EFS. RL-FlashFS implements a NAND Flash Translation Layer (NAND Layer).
• IOC - FAT Media API
  Represents interface functions for FAT Media that allow accessing raw sectors.
• The lower blocks
  Represent the supported media types and relates them to the file system.

Topics for EFS Media

Using Flash Devices

Describes the configuration steps and files needed to create applications for Flash devices (NOR Flash).

Using SPI Flash Devices

Describes the configuration steps and files needed to create applications for SPI Flash devices.

Using RAM Devices

Describes the configuration steps and files needed to create applications for RAM devices.

Topics for FAT Media

Using Memory Card Devices

Describes the configuration steps and files needed to create applications for memory card devices.

Using FlashFS with USB Devices

Describes the configuration steps and files needed to create memory applications for USB devices.

Using NAND Devices

Describes the configuration steps and files needed to create applications for NAND devices.