Fw: corrupt my NAND flash device
Paul Wong
paul.wong at digitalview.com
Tue Apr 22 03:05:48 EDT 2003
Hi all!
i installed the YAFFS file system in the NAND flash (samsung 16MB). And
test the reliability. I tried to copy a 5 MB file to the mounted yaffs
(spare 8MB) directory ( i separated the device to 3 partition - 4MB 4MB and
8MB) . and then check the disk space, it is shown that it has 3 MB spare.
Next step, I erased the file and copied another 5 MB file to it. The device
said " no enough spare. Then I use the "mkyaffs" to format it, it is shown
many bad block in the device. I checked the OOB[5] ( bad block flag) it is
set to 0x00. Why? Why the yaffs set the health block to the bad block after
erase file? Is the YAFFS not support big file ? any ideal?
Thanks
Paul
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