FreeRTOS Runtime analysis for S32K144

Amichheda — Wed, 14 Dec 2022 17:11:22 GMT

We want to analyze runtime and memory usage for each task configured using FreeRTOS

Tick time is 1msec

PLL clk 8Mhz

How often the runtime is updated for each task and how it is achieved
Did you use ISR based mechanism to update task runtime for each timer tick (for eg 250us)
Which clock to be used ? LPTMR OR LPIT
any other API other than vTaskGetRunTimeStats()

Re: FreeRTOS Runtime analysis for S32K144

lukaszadrapa — Thu, 15 Dec 2022 10:19:21 GMT

Hi,

Please take a look at:

https://www.freertos.org/rtos-run-time-stats.html

Example in the SDK does not use this feature. It’s up to users to implement it. It is possible to use any timer capable to generate periodic interrupt, so both LPIT and LPTMR can be utilized.

Another option is to use some tracing tools in advanced debuggers to do the analysis. This is not supported by S32 Design Studio.

Regards,

Lukas

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FreeRTOS Runtime analysis for S32K144

Re: FreeRTOS Runtime analysis for S32K144