Bus communication between charts in Stateflow

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Tim Hilt
Tim Hilt on 4 Jun 2020
Answered: Mark McBroom on 7 Jun 2020
Hi there!
In one of our laboratories our professor asked us to implement the lighting of a car in Stateflow using two Stateflow-Charts to keep things modular. One chart should receive all inputs and communicate with the second chart via a bus.
We weren't given any information on how to actually achieve the bus-communication, hence this question.
The closest matching information i could find was in this page of the docs, where they talk about "messages" and i think that this ultimately leads to the solution to my issue. However, i can't seem to figure out how to actually set this up myself.
Do i have to define a Simulink bus object? How can i link the two charts together via a bus (this is what i imagine the figure to represent)?
Once the connection/ the bus is set up, how can i send information via this connection?
Thank you all very much in advance!

Answers (1)

Mark McBroom
Mark McBroom on 7 Jun 2020
Simulink buses become structures in Stateflow. This link expains how a bus in a Simulink model becomes a structure in stateflow. If your professor truly wants you to have a bus between the two, you will need to create 2 separate Stateflow chart blocks in your SImulink model and then connect them with a Simulink Bus.

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