EEPROM in STM32CUbe IDE

MBhir.11 · ‎2021-03-05

Hi,

I had requirement of storing some application data in to EEPROM of MCU.

I am using STM32L151RCT6 MCU for my application.

Please suggest me any tried examples on this?

Peter BENSCH · ‎2021-03-09

STM32CubeIDE and STM32CubeMX only overwrite their own code, not the one you inserted, when you regenerate the project - and have followed the conventions. If your own code is concerned, you have apparently inserted it outside of the USER CODE blocks.

You could refer to this hand-on, step 6, if you are interested how user code should be inserted. Alternatively, you can find this information in UM1718, appendix B.1

Regards

/Peter

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Mike_ST · ‎2021-03-05

You can check the examples within the STM32L1 package available here:

https://www.st.com/en/embedded-software/stm32cubel1.html

And have a look at this example : Projects\STM32L152D-EVAL\Examples\FLASH\FLASH_EraseProgram

MBhir.11 · ‎2021-03-08

Hi ,

Thanks for your reply.

I have one doubt about STM32cube IDE tool.

first time i created the LED toggling code and in main i added the HAL function to toggle that GPIO.

After that i changed the debug mode from JTAG 5 pin configuration to serial wire configuration and generated the project once again.

After generating, the main file will overwrite because it has system configuration , clock and peripheral configuration.

I need user defined program in the main file should not erase/over write .

How to manage that ?? i have huge algorithm in main and it should not overwrite every time.

Please suggest me any settings are needed in the tool?

Peter BENSCH · ‎2021-03-09

STM32CubeIDE and STM32CubeMX only overwrite their own code, not the one you inserted, when you regenerate the project - and have followed the conventions. If your own code is concerned, you have apparently inserted it outside of the USER CODE blocks.

You could refer to this hand-on, step 6, if you are interested how user code should be inserted. Alternatively, you can find this information in UM1718, appendix B.1

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.