Stateflow chart without states

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John F
John F on 16 Sep 2011
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?

Answers (2)

Fangjun Jiang
Fangjun Jiang on 16 Sep 2011
You need to have a destination for the transition. Use the Junction if you don't have any State.
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John F
John F on 16 Sep 2011
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
Fangjun Jiang on 16 Sep 2011
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.

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Wilfred
Wilfred on 4 Oct 2011
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.
  1 Comment
Fangjun Jiang
Fangjun Jiang on 4 Oct 2011
It is not true. A state chart can have just junctions and transitions.

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