Flash corruption detection

RE: Flash corruption detection

InstaJLe — Tue, 03 Apr 2018 04:55:40 GMT

Thanks for your help! That are all the informations I needed.

RE: Flash corruption detection

Hung Bui — Tue, 03 Apr 2018 02:38:29 GMT

No, we haven't got any report on the corruption of flash that can cause any reset. It should not happen :)

RE: Flash corruption detection

InstaJLe — Thu, 29 Mar 2018 04:27:34 GMT

Thanks for your help!

A last question. Is there any possibility that the flash, after it get corrupted, is in a state that it could not be read? For your workaround it must be possible to read the flash in every state. Or is it possible that the flash get into a state that a read routine results in a reset?

RE: Flash corruption detection

Hung Bui — Wed, 28 Mar 2018 12:32:59 GMT

Hi,

There isn't a mechanism integrated into the flash to detect if a page is corrupted or not.

What we do in our fds file system is to store a CRC of the page, so if the page content doesn't match with the CRC we know that the page content has been corrupted. You can calculate the CRC before you write to the flash, based on the content in RAM that you expect to be written to the flash.