topic How to create a section in flash as eeprom in i.MX RT Crossover MCUs

How to create a section in flash as eeprom

divithsid — Thu, 28 Oct 2021 09:22:53 GMT

I want to create a section in flash as eeprom. How to do it? is there any demo code available to implement it.

Re: How to create a section in flash as eeprom

Omar_Anguiano — Wed, 10 Nov 2021 23:25:29 GMT

Hello
Hope you are well.
Unfortunately, the RT106x doesn´t have this feature unlike other families with FlexMemory like kinetis K64.

I apologize for the inconvenience this may cause you, if you have more questions do not hesitate to ask me.
Best regards,
Omar

Re: How to create a section in flash as eeprom

divithsid — Thu, 11 Nov 2021 04:25:32 GMT

Im using external flash. can we do it in external flash?

Re: How to create a section in flash as eeprom

Omar_Anguiano — Wed, 17 Nov 2021 20:53:17 GMT

I suggest you contact the external flash manufacturer. I believe it is not possible to emulate an EEPROM with flash memory.
You can use the flash to store some data however this is not recommended since it will shorten the life of the memory since you will be making a lot of programming cycles.

I apologize for the inconvenience this may cause you, if you have more questions do not hesitate to ask me.
Best regards,
Omar

Re: How to create a section in flash as eeprom

jay_heng — Thu, 18 Nov 2021 06:35:10 GMT

You need to create firmware to emulate eeprom, it is MCU chip independent, you can refer to below links for firmware design.

https://electronics.stackexchange.com/questions/258851/flash-eeprom-emulation

https://www.silabs.com/documents/public/application-notes/AN568.pdf

For i.MXRT SDK, we don't have eeprom emulate driver, the most similar design is in \SDK\components\flash\mflash