Lpc2000

Robert Wood wrote:

>I am no expert on this, but I am lead to believe writing file systems
>for flash based storage systems is a tricky business if you want to
>get maximum life out of your flash. Apparently, you need to try and
>ensure that you write and erase sectors evenly, not just write to
>whatever space might be free.
>
>As far as I understand, the physics of how flash works means that if you
>don't watch how you write to the memory, over a period of time - not
>only can you wear out the cells you are writing to, but adjacent ones as
>well.
>  
>
Yeah, there is that too.  IIRC, something like JFFS addresses that, 
sector wear distribution.  On some CF devices, that is built into them, 
each time you write a sector, the device dynamically remaps.

TomW

-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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