using a stateflow as a subsystem reference with some parameters to be editted after instantiation

Hi,

I have created a stateflow chart - a very simple debouncer whose debounce time is a parameter.

I hope to create a subsystem out of it so that I can use it in multiple places. Each instantiation of the debouncer can have different debouncing time.

However, I cannot find a way to make the internal parameter inside stateflow chart to propogate to the subsystem level.

Thank you.

Answer 1

[Fangjun Jiang]

Create your Stateflow chart and create parameter variables, add a mask to the Stateflow chart to bring all those parameter variables to the mask dialog.

Make this masked block a library block, then when you use it multiple times in a model, you can specify whatever parameter values.

https://www.mathworks.com/help/simulink/ug/block-masks.html

[Linfei]

thank you for the help.

the difficulty I had with stateflow chart is that, when I add masking and use promote-parameter, the parameter data that I defined inside flowchat is not populated.

I wonder if the only way to add the parameters in the Mask is to do it manually.

Thanks.

[Fangjun Jiang]

You need to add this variable to your chart and specify it as "parameter", not as local data or constant. Press Ctrl+H to open the Model Explorer and navigate to the chart, and check the "scope" of the data under this chart.

[Linfei]

thanks. it helps.