STM32CubeIde COMPILER

Dear Sir,

A project written for STM32U585 reaches the size 900 k bytes.

Trying to lower the size , I am tryin to use properties.

MCU GCC C compiler -> Optimization

Trying to set Optimization level to optimize most to -Q3

the property of Optimization level is back to None (-Q0).

Please Advise.

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ST Technical Moderator

Hello @Ephraimoved

Thank you for posting.

Could you please provide the STM32 Cube IDE version.

Thanks.

Mahmoud.

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.

Associate III

Hi

1.12.1

Super User

Be care if you click on file yu change only one file optimize level. Click on project and try...

And optimize is O not Q

And when your previous optimize level is size, then O3 dont get you most super efect. You need optimize your code data system or replace MCU to 2M

Perhaps you changed build configurations, or didn't hit Apply. This is a per-configuration setting.

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