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RL-ARM User's Guide (MDK v4)

NAND Flash Translation Layer

Embedded File System

Memory Organization

Allocation Information

File Data Fragments

Configuring RL-FlashFS

Configuration Options

SPI Flash Drive

Memory Card Drive

USB Flash Drive

NAND Flash Drive

Using RL-FlashFS

Using Flash Devices

Converting FlashPrg.c

Converting FlashDev.c

Limitations When Using Internal Flash

Using SPI Flash Devices

SPI Flash Driver

SPI Sector Layout

Using RAM Devices

Using Memory Card Devices

Using FlashFS with USB Devices

Using NAND Devices

NAND Page Data Layout

Function Overview

File I/O Routines

File Maintenance Routines

File Time Support Routines

Flash Driver Routines

FAT Driver Routines

MCI Driver Routines

SPI Driver Routines

NAND Driver Routines

IOC Interface Routines

System Routines

Example Programs

Library Reference

Appendix

File I/O Routines

File I/O routines provide methods for reading and writing to files in a Flash file system. File I/O routines are thread safe.

Routine	Description
fclose	Closes the file stream.
feof	Reports whether the end of stream has been reached.
ferror	Reports whether there is an error in the file stream.
fflush	Flushes the file stream.
fgetc	Reads a character from the file stream.
fgets	Reads a string from the file stream.
fopen	Opens the file stream.
fprintf	Writes a formatted string to the file stream.
fputc	Writes a character to the file stream.
fputs	Writes a string to the file stream.
fread	Reads a number of bytes from the file stream.
fscanf	Reads a formatted string from the file stream.
fseek	Moves the file stream's in-file pointer to a new location.
ftell	Gets the current location of the stream's in-file pointer.
fwrite	Writes a number of bytes to the file stream.
rewind	Moves the file stream's in-file pointer to the beginning of the file.
ungetc	Stores a character into an input file stream.

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