Simulink AUTOSAR Blockset - How to calibrate parameters from model

Hi,

In Simulink AUTOSAR Blockset, I have a list of SharedParameters. I have a few of these parameters that I would like to auto-tune. Meaning that I have a Stateflow routine that calibrate the values. Once the routine is done, I would like to write back the results in the external interface (to let the RTE/BSW saving it in non-volatile memory).

Does someone knows how to do that?

Regards, Nicolas

Answer 1

[praguna manvi]

Hi @Nicolas B,

As I see, you are looking to calibrate AUTOSAR after using a Stateflow routine. You can configure "per-instance memory (PIM)" for AUTOSAR applications for this use case. In the AUTOSAR run-time environment, calibration tools can access "arTypedPerInstanceMemory" blocks for calibration and measurement. Refer to the link below for more information:

https://www.mathworks.com/help/autosar/ug/use-data-store-memory-blocks-to-specify-per-instance-memory.html

To preserve state information at startup and shutdown, the documentation above uses "NVRAM" block state data. Additionally, here is a useful discussion thread on using data in "Stateflow" for "PIM":

https://www.mathworks.com/matlabcentral/answers/513961-how-can-i-set-data-in-a-stateflow-chart-to-use-autosar-per-instance-memory-code-mapping

Hope this helps!

[Nicolas B]

Hi @praguna manvi,

Thank you for these links, it is exactly what I was looking for!

Regards