how much data remain in nandflash across unexpected power losses?

[flame]

An example: I want to write "abcdefg" into a nandflash.Power off when I write "d".I want to know whether or not the string "abc" is  in the nandflash.
Thanks all!!

[rogerz]

On Tue, Feb 7, 2012 at 11:17 AM, flame <caoche...@163.com> wrote:

An example: I want to write "abcdefg" into a nandflash.Power off when I write "d".I want to know whether or not the string "abc" is  in the nandflash. 

There are two steps.

1. Writing "abcdefg" to page buffer in memory

2. Flush buffer to nandflash 

If you power off at first step, nothing on flash.

If second step, the page will be invalid. Although 'abc' is written, you can not read it normally.

--

rogerz

[caocheng0705]

Thanks rogerz! I got it.

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