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Overview

Description

FAT file system for RZ/A series
FAT file system software library for RZ/A series.
FAT file system [M3S-TFAT-Tiny] for RL78 Family
Memory-saving type FAT file system software for the RL78 Family.
FAT file system [M3S-TFAT-Tiny] for RX Family
Memory-saving type FAT file system software for the RX Family.

Target Devices

Documentation

Support

Support Communities

  1. Fat File System supporting V850, SH and RX

    Has anyone used this open source file system? I'm curious to see if there is example code written for the YRDKRX62N board?http://elm-chan.org/fsw/ff/00index_e.html

    Mar 30, 2011
  2. Error on Sample program that uses Open Source FAT File System

    Hello,I import from HEW a sample program of the aplication note "Sample program that uses Open Source FAT File System [M3S-TFAT-Tiny] Module Firmware Integration Technology". I use the e2 studio IDE, version: 3.1.0.24 and the RX Compiler version 2.02.00 for the RX62N ...

    Oct 15, 2014
  3. Issue regarding FAT system in renesas RSK RX111 board

    Dear Renesas Members, I need a suggestion *** help over the issue regarding the FAT file system in RX111 RSK.  I am using sample program given when I bought RX111 RSK board. The sample program is USB_HMSC which is not based on FIT module. The sample program is for MASS ...

    May 6, 2016
View All Results from Support Communities (212)

Knowledge Base

  1. RA Family: Cases Where ff_fopen() Processing Time Becomes Long When Using USB Mass Storage

    ... the characteristics of the FAT file system. In particular, the allocation unit size and the state of free space are dominant factors. Questions When performing file write operations using USB mass storage,the file open operation (ff_fopen()) may take longer than expected. Is this behavior caused by an issue ...

    Jan 5, 2026
  2. There are no errors that appeared when using NC30 V.5 or earlier. Why?"

    ... this method.It has been confirmed that this method can be used to avoid this problem in the following middleware and driver products.Confirmed products: "FAT File System Supporting Long Filenames for M16C/60 Series, M16C/50 Series, M16C/30 Series, M16C/Tiny Series, and M16C ...

    Oct 5, 2012
  3. Tasks (such as initialization) required before the M3S-TFAT-Tiny module can be used for serial flash memory

    ... /www.renesas.com/software-tool/fat-file-system-m3s-tfat-tiny-rx-family From the above webpage, you can access “Open Source FAT File System M3S-TFAT-Tiny Module Firmware Integration Technology Rev.4.02”, where you can obtain the ZIP file that contains the FITDemos folder ...

    Apr 23, 2025
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