TMS320F28388D: Implement the CPU Usage % mechanism for C28x CPUs

Rohit Kumar

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

Tool/software:

Hello Experts,

Is there a way (or an example) to implement CPU usage % for C28x CPUs in TMS320F28388D?
Note that FreeRTOS is being used. However, time critical power electronics functionalities are in ADC ISR and we would like to view CPU Usage % for both CPUs.

Thanks,

Rohit

6 months ago

0 Rohit Kumar 6 months ago

Prodigy 70 points

Hello,

Please respond on this.

0 Arnav Menon R 6 months ago in reply to Rohit Kumar

TI__Expert 3035 points

Hi Rohit,

Using the FreeRTOS vTaskGetRunTimeStats() API, you'll be able to get the CPU usage % of all the RTOS tasks, including the idle (this is measured w.r.t. a timebase set up by a timer running at min. 10x tick frequency). The (total time - idle task time) should give you a measure of how much time CPU spends on useful tasks.

Beyond the view of FreeRTOS, you can utilize a similar timer approach. You can also consider using the profile clock or the ERAD module.

Regards,

Arnav

0 Rohit Kumar 6 months ago in reply to Arnav Menon R

Prodigy 70 points

Hi Arnav,

Regarding ERAD module for profiling, could you please share links to the documents, examples, etc. That will be very useful.

Thanks