fat32 mode in < 4GB card

Discussion in 'Embedded Systems and Microcontrollers' started by embedded.world, Mar 10, 2014.

  1. embedded.world

    Thread Starter Member

    Feb 27, 2014
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    1. Can we create a fat32 system in crad with less than 4GB space.

    2. FAT32 limits the size of file by 4GB maximum. Is only way of increasing is exFAT or in FAT32 it can be increased
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,392
    1,606
    1) Yeah I've used crads down to 512MB without issue.

    2) You need more then 32GB per file? Can you split the data across several files?
     
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    Regarding 2. If you want files larger than 4 GB, use a file system designed for files larger than 4 GB. In case of M$, they came up with NTFS.
     
  4. takao21203

    Distinguished Member

    Apr 28, 2012
    3,577
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    Use a directory instead of a file, and write some simple wrapper functions.

    Writing GBytes with a controller? What's that good for?
     
  5. spinnaker

    AAC Fanatic!

    Oct 29, 2009
    4,887
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    OK what is a "crad"???
     
  6. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    My biological logic analyzer says it is: card.
     
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