MLC NAND: all 0xff after erase?

Brian Norris computersforpeace at gmail.com
Fri Jul 13 17:22:17 EDT 2012


On Tue, Jul 10, 2012 at 11:41 PM, Richard Genoud
<richard.genoud at gmail.com> wrote:
> 2012/7/11 Brian Norris <computersforpeace at gmail.com>:
>> Hello all,
>>
>> I've seen some issues with MLC NAND and where I might erase a block,
>> read it back, and receive a few bitflips such that the data is not
>> entirely 0xff (i.e., a few bytes may be 0xfe, 0x7f, 0xf7, etc.).
>
> If you read the same block a few ms later, is the data the same or is
> it all 0xff or.. ?

Generally, the data is the same.

Brian



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