Segger Studio can report Ram usage. How can I do that without Segger Studio (gcc/jlink tools)?

[Paul K]

Segger Studio is capable of reporting Flash usage and Ram usage (heap & stack).

Is there a way to do that without Segger Studio? I'm using gcc, JLink command line tools.

Thank you.

[Michal]

Hello Paul,

There is a linker flag for this
--print-memory-usage
Here is a nice article about it:
https://embeddedartistry.com/blog/2020/08/17/three-gcc-flags-for-analyzing-memory-usage/

If you are using nRF Connect SDK and west as your build tool, then it should show up automatically as the last step of the build process.

It looks like this:
[169/169] Linking C executable zephyr/zephyr.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       29800 B         1 MB      2.84%
            SRAM:        7648 B       256 KB      2.92%
        IDT_LIST:          0 GB         2 KB      0.00%

Best regards,

Michal