Processor Expert SoftwareのトピックRe: data remanence

data remanence

nexxter — Tue, 18 May 2021 07:40:18 GMT

Hi Folks

I an looking for some documentation about data remanence (eeprom, flash). I am working on a little speech about risks on read/write process and not following manufacturers guidelines.

I have seen some papers online with possibilities on bad erase, but those are not really usable.

is there any paper available?

thanks a lot

Max

Re: data remanence

ZhangJennie — Tue, 18 May 2021 09:12:50 GMT

Please let us know your part number thus we can assign right engineer for your question.

Thanks

Jun Zhang

Re: data remanence

nexxter — Tue, 18 May 2021 10:25:59 GMT

Hi Jun

I am refering to MC9S12XE chip Family, highly used in controller units.

I know there are a large number of "theoretical" fails based on data remanence, overwriting, false erasing, .... but would need any kind of paper just to look at it.

Re: data remanence

ZhangJennie — Fri, 21 May 2021 09:33:46 GMT

I would recommend these ANs for you. regarding to how to use emulated eeprom of S12EX

https://www.nxp.com/docs/en/application-note/AN3743.pdf

https://www.nxp.com/docs/en/application-note-software/AN3743SW.zip

https://www.nxp.com/docs/en/application-note/AN3490.pdf

Hope this helps,

Jun Zhang

Re: data remanence

nexxter — Fri, 21 May 2021 09:36:34 GMT

Hi Jun

One of those i have already, this part of how to use it, and how to make it i already have covered.

But what i need are potential risk of EE damages and data loos/rem

Re: data remanence

lama — Mon, 24 May 2021 05:23:10 GMT

Hi,

I have attached some more materials, I have found in my PC, which can help.

Best regards,

Ladislav