File system requirements for SD and MMC cards?

- K
- Kaushik
  
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posted
18 years ago

Thu, Oct 13, 2005 5:31 AM

Hi all,

I would like to use SD and MMC cards on an ARM evaluation board with AMX os. What are the requirements that a file system should have to support these devices? for eg:ECC calculation, Multivolume., etc. are these any special features which they have to support?(for eg., to support a NAND flash, the file system should support Bad block management).

Thank you Kaushik

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- L
- larwe
  
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posted
18 years ago

Thu, Oct 13, 2005 9:56 AM

Absolutely not true, you are mixing up physical format and logical format issues.

There is no intrinsic reason why a NAND filesystem needs to support bad blocks. The physical layer driver could map them out if it wants to.

- K
- koko
  
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posted
18 years ago

Tue, Oct 18, 2005 2:22 AM

nope, but writing only once in a while would be nice

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