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eric.julien
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Re: March 8 - Day 5: The Challenges of Using NAND Flash Memory in Embedded Systems
eric.julien   3/8/2013 3:03:51 PM
NO RATINGS
ThomD Would like to hear more about parts with built-in ECC - such as Micron M60 (4 bit ECC) and ClearNAND - and flash translation layer changes to match this.
 
Well your FTL needs to support this of course. Ours allows you to specify zones to avoid in the spare area so that the device can store its ECC without overwriting other metadata. Software ECC of course needs to be disabled. Most devices will report ECC status through their status registers so that you will have to read the status register after read operations and also enable the on-chip ECC feature at initialization through some command (Get/Set Feature).

 



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