thanks,and i have another question about yaffs_ecc.h. As 256 byte generate
3byte ecc code,but when use yaffs_ecc_calc_other() which can generate ecc
for more than 256 byte,but it stores the ecc valu in one structure
"yaffs_ecc_other" ,how this work?for example,if calcuate ecc for 2048 byte
data,how it store the ecc value?

thank you.
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Regards,
Ezio.