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==Objectives==
 
==Objectives==
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MultiMedia Card (MMC) is commonly used in portable devices due to their high density, rewritability and low cost. The use of MMC in embedded systems enables the systems to possess a removable, upgradeable and external mass storage.
  
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The use of MMC in embedded systems enables the systems to possess a removable, upgradeable and external mass storage.
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MMC Manufacturers usually formats the cards in FAT12/FAT16/FAT32, and can be read/write in almost all computers. This project aims to integrate a FAT file system in freertos_posix for reading/writing files in MMC by 8/16-bit embedded systems. The API employs POSIX and Standard C-library standard for I/O operations.
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Manufacturers usually formats the cards in FAT12/FAT16/FAT32, and can be read/write in almost all computers. This project aims to integrate a FAT file system in freertos_posix for reading/writing files in MMC by 8/16-bit embedded systems. The API employs POSIX and Standard C-library standard for I/O operations.
 
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While our MMC card reader will use the MMC protocol, we probably won't use actual MMC cards.
 
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MultiMedia Card (MMC) is long obsolete and superseded by SD and SDHC.
 
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We will most likely use the more commonly available SD cards, which support both the [[MultiMediaCard]] protocol and the SD protocol.
 
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The MMC protocol is the easiest way to communicate with SD cards.
 
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SD cards have relatively high density, rewritability and low cost.
 
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===Benefits===
 
===Benefits===
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== Development ==
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==Architecture==
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[[MMC Card Reader Development]]
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*See [{{SERVER}}/Multi-purpose_Embedded_System#File_System here] for block diagram
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*Describe the development of the project
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==[[Development Roadmap for MMC Card Reader]]==
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*Contains directions for development
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==Circuit and PCB==
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*[http://multimedia.3m.com/mws/mediawebserver?66666UuZjcFSLXTtmXftMXMXEVuQEcuZgVs6EVs6E666666-- SD Card connector]
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*SPI interface to main board
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==Software Implementation==
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*[http://efsl.be/ Embedded Filesystem Library]
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*[http://elm-chan.org/fsw/ff/00index_e.html FatFs]
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[[category:projects]]
 
[[category:projects]]

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