flash sector read operation fails, but the ecc could not detect this?

Huai Hellen

Hi, all

I copy a file from sd memory to flash (rooted at sd memory\a.txt), then copy it from flash to sd memory again, of course, saved at another path (rooted at sd memory\1\a.txt). then I compare the two files: sd memory\a.txt and sd memory\1\a.txt , and find that the two files are different !

what I confused is that the ecc does not report this error and think it normal.

over 14 years ago

0 Vaibhav Hiremath over 14 years ago

TI__Expert 8180 points

Hi,

First of all its bit strange observation, I remember I do similar testing before every release and it worked for me till now. Can you please erase the NAND completely and try?

Recommend to use u-boot to erase the NAND

Thanks,

Vaibhav

0 Huai Hellen over 14 years ago in reply to Vaibhav Hiremath

Expert 1030 points

Hi, Vaibhav,

I do same tests on evm board, it works fine. This problem occurs on some our custom boards, while some other boards works fine.

Moreover, this problem occurs only if you do this testing using large file with size 150M , for example and serveral times!

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flash sector read operation fails, but the ecc could not detect this?