Model-Based Design Toolbox (MBDT)のトピックRe: Outport affect to the CPU usage

Outport affect to the CPU usage

aslan_eyyup — Wed, 08 Mar 2023 15:06:56 GMT

For the simscape battery SOC estimation example, when using the outport for SOC monitoring in the PIL block with MPC5775E, the CPU usage is ~0.153%. But When I terminate it and don't monitor the SOC, CPU usage from PIL block becomes ~0.000208%. In this case I am not sure if the algorithm works without outport but I am wondering about your comments. Thanks.

Re: Outport affect to the CPU usage

stefancinipeanu — Thu, 23 Mar 2023 10:07:28 GMT

Hi @aslan_eyyup

The reason why CPU usage drops from 0.15% to 0.002% is because Simulink Coder optimizes the generated code. In this matter, when in PIL mode, if you terminate the model inside the PIL subsystem, the code corresponding to your model will not be generated and so the CPU has nothing to execute.

In the attached picture, you can see the differences between PIL subsystem generated code when using the output port and when using the terminator. When using the terminator, the code for the SOC Kalman Filter is not generated due to Simulink optimizations.

Hope this helps!

Regards,

Stefan.

Re: Outport affect to the CPU usage

aslan_eyyup — Thu, 23 Mar 2023 16:03:09 GMT

Thank you for the detailed explanation, this information will help to me.

Best wishes.