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Attila Szabo
Attila Szabo
Associate
Jan 13, 2023 7:57 AM UTC
Question

STM32 internal eeprom

Hi!

I am working with a STM32L053 MCU. I would like to write to the internal eeprom, and based on the datasheet it takes 3.2 ms.

I have doubts that during that time interrupts will be ignored. It is not clear for me why. 

I thought that the code is in the flash and the eeprom is independent from the flash. 

(Or maybe this EEPROM is not a real EEPROM, but emulated EEPROM in flash?)

Best regards

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1 reply

RomainR.
RomainR.
ST Employee
Jan 13, 2023 1:57 PM UTC

Hello @Attila Szabo (Community Member)

I can suggest the recommendation of AN4808 for STM32L0.

https://www.st.com/resource/en/application_note/an4808-writing-to-nonvolatile-memory-without-disrupting-code-execution-on-microcontrollers-of-the-stm32l0-and-stm32l1-series-stmicroelectronics.pdf

And firmware packege X-CUBE-NVMRWW.

https://www.st.com/en/embedded-software/x-cube-nvmrww.html

Best regards,

Romain,

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