Stateflow chart without states

I have seen examples before of using a state chart without states to implement logical expressions. I tried doing this recently, and I got warnings that none of my assignments would be executed because the actions did not end in states. Why would that be?

Answer 1

[Fangjun Jiang]

You need to have a destination for the transition. Use the Junction if you don't have any State.

[John F]

I have a junction at the end.

I don't have any states in the diagram. I'm just using transitions to do logic. Does that make a difference?

[Fangjun Jiang]

No. We do flow chart logic all the time using Stateflow. What version of MATLAB are you using? Did the result come out correct? Maybe it's just a friendly warning.

Answer 2

[Wilfred]

AFAIK, "state charts" with just junctions and transitions , and no states, can only be defined within a graphical function. Search the user manual for "graphical function" and you'll see the examples.

[Fangjun Jiang]

It is not true. A state chart can have just junctions and transitions.