S32K3 After the variable changes the section attribute, the text section compilation is problematic

[OCEAN_CEC]

I am using s32k311 to complete the function of SPI+DMA communication, I tried to put the buff into the no_cache area, after compiling, I found that the link symbol _text_end ran to the ram area, I don't know if I made something wrong, could you give me some suggestions, thank you!

[danielmartynek]

Hi @OCEAN_CEC,

Can you share the project?

Do you have a screenshot of the error message?

What RTD and compiler version do you use?

Regards,

Daniel

[OCEAN_CEC]

compiler ：gcc-10.2-arm32-eabi

RTD: R21-11_3.0.0_P07

HW ：S32K310

I discovered the problem when the program ran away,compile without errlog.

[danielmartynek]

Hello @OCEAN_CEC,

Can you read the .map file and confirm the variables are correctly placed in the sections?

Is the MPU descriptor correcly configured at the section in system.c?

Regards,

Daniel

[OCEAN_CEC]

Hi  Daniel：

   Thank for your reply. 

   I read system.c and.map, and this variable is actually placed in the area I want. Currently, the MPU is configured using the default project configuration. In my understanding, this should not affect the address of the link symbol.

[danielmartynek]

Hi @OCEAN_CEC,

Please share the project so that I can test it.

If you don't want to share it here, create a ticket.

Regards,

Daniel