Microchip’s Memory Disk Drive (MDD) file system interface library brings the ability to transfer and share portable memory devices between and embedded system and a personal computer. The MDD library provides a method to read and/or write to these storage devices through a microcontroller. The data of these storage devices can be read by a PC, and the data written by a PC can be read by a microcontroller. Most operating systems (i.e., Windows® XP) support the FAT16 and FAT32 file systems.

Optional SD & MMC PICtail Plus (AC164122)

Features of Microchip’s memory disk drive file system:

•

Based on ISO/IEC 9293 specifications

•

Provides a method of interfacing to files and directories on FAT12, FAT16 and FAT32 file systems

•

FAT16 and FAT32 allow access to up to 2 gigabytes and 2 terabytes of memory, respectively

- FAT 16 standard used for most SecureDigital (SD) cards, CompactFlash® (CF) cards and MMCs MultiMedia Cards sized below 2 gigabytes (GBs)

- FAT32 standard can be used to address memory sized between 2 gigabytes and 2 terabytes

•

Most popular file system with SD cards, CF cards and USB thumb drives

•

Hardware evaluation supported by PICtail Plus® SD & MMC Daughter Card (AC164122) and USB PICtail Plus Daughter Card (AC164131)

•

MDD file system library supports the 8-bit PIC18 devices as well as the 16-bit PIC24F, PIC24H, dsPIC30 and dsPIC33 devices and 32-bit PIC32 devices