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Forum Post: RE: AM3517 Yaffs2 Multiple Bit ECC

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First, you need to know WHY the file system gets corrupted.

I might have nothing to do with ECC. It might be a missing Capacitor (Energy storage) plus Diode on the VCC line of the flash. If the power loss is during a write/erase, you will have a lot of instable bits.

So, first check the file system with the "nand" commands of uboot.
 Try to find out which type of failure it is.


regards

Wolfgang


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