Change and save parameter / variable for next startup on an arduino target using simulink

Hi guys!

I have an Arduino Mega and want to deploy my Simulink Model on this target so the Model can run on its own without a PC, Matlab etc. In my Model i want to able to change the some settings and save theses changes permanently. The thing is i dont want to save this settings just for the actual runtime but for the next start after the Arduino is shutdown / restarted. What i want to achieve is just to save some values for my model for the next startup, like in a settings menu.

If i am correct i need to change the variables / parameters in the Model workspace. A already tried using the Data Store blocks but, as expected i am loosing the values for the next Start of the Arduino. I also tried to use "Simulink.Paramter" to change the Variables in the Workspace but i did something wrong resulting in:

The 'Simulink.Parameter' class does not support code generation

So my question is: Is it possible to change and save values in my model for the next start of the arduino? And if so how?

Thanks in advance!

Denis

Answer 1

[Arun Kumar]

Hi Denis,

What I understood from your question is that you want to store some data during runtime and read that data during the next/subsequent runs. On mega, this can be achieved by using the onboard EEPROM:

https://www.arduino.cc/en/Reference/EEPROM

There's no block for EEPROM read/write in the support package, but you can create your own block by following this simple guide:

https://in.mathworks.com/help/supportpkg/arduino/device-driver-blocks.html

Hope this helps!

Arun