MATLAB: How to set “Execute (enter) Chart at Initialization” for a State Transition Table block in MATLAB R2016a

coderhdlHDL Coderstatestateflowtabletransition

I am trying to use HDL Coder with a model that contains a State Transition Table block, but it is complaining that the property "Execute (enter) Chart at Initialization" has to be set to generate HDL Code. For a Stateflow chart I would open the chart, right-click and select Properties to open the Stateflow properties, but I do not have that option for the State Transition Table block. How can I set this parameter?

Best Answer

To set the property "Execute (enter) Chart at Initialization" for the State Transition Table block, open the block and navigate to "Chart -> Properties" in the menu bar. This opens the Stateflow properties and will allow you to set the property "Execute (enter) Chart at Initialization".

Related Solutions

MATLAB: How to change the default Stateflow chart properties

There are two ways to change the default Stateflow chart properties:

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1. Using the Stateflow API

Run the following code after starting MATLAB:

load_system('sflib'); 
set_param('sflib','Lock','off')
rt = sfroot; 
m = rt.find('-isa','Stateflow.Machine','Name','sflib'); 
chart = m.findDeep('Chart'); 
chart.StrongDataTypingWithSimulink = 1;

Remark: For newer releases change the last line to:

chart(1).StrongDataTypingWithSimulink = 1;

When you open a new Stateflow chart, the chart property "Use Strong Data Typing with Simulink I/O" will be checked. You can change other default properties using the similar methods. More information on Stateflow API can be found at:

https://www.mathworks.com/help/releases/R13sp2/toolbox/stateflow/oo_interface_intro.html?s_tid=srchtitle

You can also save the above code to the file startup.m. It will take effect automatically every time when you start MATLAB. More information on setting the file startup.m can be found at:

https://www.mathworks.com/help/releases/R13sp2/techdoc/ref/startup.html?s_tid=srchtitle

Please be aware that you manually change the Stateflow library without saving.

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2. Using the Simulink Library Browser

Type the following in the MATLAB command window:

simulink

Click on "Stateflow" on the Simulink Library Browser tree, then double click the "Chart" block. Right click on the opened chart, select "Properties". Check the option "Use Strong Data Typing with Simulink I/O" and close the chart. (Note: Do not save the chart unless you want to change the chart property permanently, which is not recommended.) After doing this, if you open a new Stateflow chart, the chart property "Use Strong Data Typing with Simulink I/O" will be checked.

MATLAB: Do I receive a “Error using Stateflow.Clipboard/copy” when I try to update Stateflow library interfaces that contain graphical Stateflow functions that are set to “subchart” in R2017a+

In MATLAB R2017a+, you can copy the content of the sub-charted graphical functions by setting the flag '-depth' to 1. This will copy a sub-charted function and its content all together. Please note that this solution works best if there is not a mix of sub-charted and non-sub-charted graphical functions and or states.

Please refer to the following lines of code below for an example of how to set this flag:

% Find the matching chart.  Get contents.
State = OldChart(iOldChart).find('-isa', 'Stateflow.State', '-depth', 1);
Transition = OldChart(iOldChart).find('-isa', 'Stateflow.Transition', '-depth', 1 );
Junction = OldChart(iOldChart).find('-isa', 'Stateflow.Junction', '-depth', 1);
Note = OldChart(iOldChart).find('-isa', 'Stateflow.Note', '-depth', 1);
Function = OldChart(iOldChart).find('-isa', 'Stateflow.Function', '-depth', 1);
Box = OldChart(iOldChart).find('-isa', 'Stateflow.Box', '-depth', 1);

Another alternative if there are some components that are not getting copied because they are in a different depth is to do the following:

% Find all objects
states = OldChart(iOldChart).find('-isa', 'Stateflow.State');
% Select the objects that are in the same subviewer
states = states(arrayfun(@(x)(x.Subviewer.Id == x.Chart.Id), states));

Then, you should be able to use the "sfclipboard" object to copy and paste the contents of the library.

Best Answer

Related Solutions

MATLAB: How to change the default Stateflow chart properties

MATLAB: Do I receive a “Error using Stateflow.​Clipboard/​copy” when I try to update Stateflow library interfaces that contain graphical Stateflow functions that are set to “subchart” in R2017a+

Related Question

MATLAB: Do I receive a “Error using Stateflow.Clipboard/copy” when I try to update Stateflow library interfaces that contain graphical Stateflow functions that are set to “subchart” in R2017a+