How to use STM32F40X CCM SRAM in STM32CubeIDE?

[jerry pang]

I know how to use ccm in keil, but now i have a project used CubeIDE, i dont know How to use STM32F40X CCM SRAM in STM32CubeIDE? thank you for your answer and help?

[After Forever]

STM32CubeIDE uses the GCC toolchain, so most likely you do it manually by modifying the linker file and setting correct attributes for the variables (and/or functions) which you want to end up in CCM SRAM.

OpenSTM32 - Using CCM Memory

AN4296

Also note, there are different types of CCM SRAM, for example, you can't run code on STM32F405/7 CCM SRAM, it's not connected to I-BUS.

[jerry pang]

thanks for you help ,but i dont find the way to use it. do you have any link or suggestion to real use it.

[Tesla DeLorean]

Did you even review the App Note cited above?

Add the sections to your .LD Linker Script

Direct content with attributes.

Initialize the space in startup.s

Perhaps gain a better understanding of your compiler and linker

[jerry pang]

thank you for your help.