标签: mmc卡
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SD卡，MMC卡MCU读取方案最完整的资料……
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采用TMS320VC5509实现对MMC卡的读写的测试程序，利用了5509内的MMC模块，通过MCBSP口实现-usedtoachieveTMS320VC5509MMCcardreadertestingprocedures,useofthe5509MMCmodules,IrealizeMCBSP……
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ThisapplicationnotedescribestheusageoffileI/OfunctionsusingMicrochip’smemorydiskdrivefilesystemlibrary.Microchip’smemorydiskdrivefilesystemis:•BasedonISO/IEC9293specifications•KnownastheFAT16filesystem,usedonearlierDOSoperatingsystemsbyMicrosoft®Corporation•AlsosupportstheFAT32filesystem•MostpopularfilesystemwithSD(SecureDigital)card,CF(CompactFlash®)cardandUSBthumbdriveMostSDcardsandMMCs(MultiMediaCards),particu-larlythosesizedbelow2gigabytes(GBs),usetheFAT16standard.TheFAT32standardcanbeusedtoaddressmemorysizedbetween2gigabytesand2terabytes.Thisapplicationnoteprovidesamethodtoreadand/orwritetothesestoragedevicesthroughamicrocontroller.ThedataofthesestoragedevicescanbereadbyaPC,andthedatawrittenbyaPCcanbereadbyamicrocontroller.Mostoperatingsystems(i.e.,Windows®XP)supporttheFAT16andFAT32filesystems.AN1045ImplementingFileI/OFunctionsUsingMicrochip’sMemoryDiskDriveFileSystemLibraryAuthors:PeterReenandNaveenMohanswamyINTERFACEMicrochipTechnologyInc.ThePICtailDaughterBoardforSDandMMC,MicrochipproductnumberAC164122,providesanINTRODUCTIONinterfacebetweenSDorMMCandaThisapplicationnotedescribestheusageoffileI/OPICmicrocontrollerthroughtheSerialPeripheralfunctionsusingMicrochip’smemorydiskdrivefileInterface(SPI)bus.ThePICtailDaughterBoard……
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