Calculate CPU Active % in a debug build with firmware based on STM32U575, FreeRTOS, and STM32CubeIDE

[mdalal]

I have built a basic firmware for STM32U575 nucleo board with FreeRTOS with a feasibility of the CPU going into either sleep or stop modes. I want to calculate its CPU active % for a debug session.

Can you suggest how to get the active CPU % reliably and accurately in STM32CubeIDE?

[Joe WILLIAMS]

Hi mdalal

This post has been escalated to the ST Online Support Team for additional assistance.  We'll contact you directly.

Regards

Joe

STMicro Support

[Andrew Neil]

https://forums.freertos.org/t/profiling-tools-for-free-rtos/20085

https://community.st.com/t5/stm32cubeide-mcus/visualizing-freertos-tasks-graphically/td-p/664488

https://community.st.com/t5/stm32cubeide-mcus/freertos-runtime-percentage-calculations/td-p/633131

[mdalal]

Hi, 

Thanks for the links. From the links, I understand that you have given 2 options:

- Use traceanalyzer with paid license - I do not have it

- Task execution % --> Can it give correct info when in low power mode (stop 3)? For me, the IDLE task active % is where the CPU is inactive and the remaining time is when the CPU is active. 

Can you clarify?