Hello,
In order to get the data output from the S-function block, the “Dimensions” and “SamplingMode” properties of the output port must be set as shown below. I have assumed a sample output data array of size 13x1 that is then broken out by the demux for each display block.
function data_out(block)
setup(block);
end
function setup(block)
block.NumDialogPrms = 0;
%% Register number of input and output ports
block.NumInputPorts = 0;
block.NumOutputPorts = 1;
%% Setup port properties
block.OutputPort(1).Dimensions = [13 1];
block.OutputPort(1).SamplingMode = 'Sample';
%% Set block sample time
block.SampleTimes = [1 0];
%% Set the block simStateCompliance to default (i.e., same as a built-in block)
block.SimStateCompliance = 'DefaultSimState';
%% Register methods
block.RegBlockMethod('Outputs', @Output);
end
function Output(block)
block.OutputPort(1).Data = [0.8003, 0.1419, 0.4218, 0.9157, 0.7922, 0.9595, 0.6557, 0.0357, 0.8491, 0.9340, 0.6787, 0.7577, 0.7431]';
end
The corresponding Simulink model is shown below.
The documentation on S-functions (https://www.mathworks.com/help/simulink/slref/level2matlabsfunction.html) can help understand the above code.
