Arduino FAT
Nowadays Fat storage device has an important role for Embedded System.Many
electronics manufacturers also integrate the unit for read Fat file system with their
products such as digital camera , mobile phone , MP3/MP4 player , GPS receiver , etc…
There are many storage device on the market that use Fat file system such as harddisk,
SD card,MMC card,SDHC,Micro SD card,Mini SD card, etc. This article mention about
only SD card.
SD Card (Secure Digital Card)
It is storage equipment that use nand flash memory to store the data (non volatile
memory).SD Card was developed from MMC card.Its body is slightly thicker than MMC card.
It can have a capacity up to 4 GB while MMC card has a maximum capacity of 512 MB.The
speed of reading and writing of SD Card is faster than MMC card.Furthermore SD card can
be locked to disable any data-writing to the card by implement security system to the
card.SD Card also has high capacity version called “SDHC”.SDHC can have the capacity from
4 GB – 32GB.Mini SD or Micro SD card also has the same principle as SD card but its size
is smaller than normal SD card.
OK, now back to the story corresponding to this article topic “Arduino FAT”. For
anyone who want to develop FAT project and don’t want to spend too much money I
suggest you develop your project with Arduino because its development enviroment is very
cheap (the board and programmer is cheap and easy to find, the compiler is free).Below is
the resource on the internet that concern with FAT project for Arduino.I think they are
practicable up until now.
1.S65-Shield
It is SDFAT library for arduino to make vfat sd-card (library of SDFat is come from
elm-chan project).
2.Arduinonut
Another Far file system for Arduino that use u-fat file system.
3.Forums from arduino.cc that I found interesting.
3.1 SD card interface
3.2 SD card read/write with Arduino
4.MicroSD module for Arduino
4.1 wireless sensor networks
4.2 blushingboy
7.FatFs Module Application Note
I also have another article about FAT library for STM32, you can view it here.
Thank you,
Jitkasem Pintaya.
Reference site:
1. http://www.ayarafun.com/2009/04/howto-interface-arduino-with-vfat32/#more-252
2. http://www.electoday.com/cgi-bin/yabb2/YaBB.pl?num=1232963016
3. Picture from http://www.interfacebus.com/Secure_Digital_Card_Pinout.html
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