How can I generate c++ code of a matlab function using embedded coder from simulink?

Hi,

I would like to use embedded coder for this function from the 5G toolbox:

function harqProcesses = hNewHARQProcesses(numHARQProcesses,rvsequence,ncw)

harqProcess.RVSequence = rvsequence; % Sharing one rvsequence per CW

harqProcess.ncw = ncw; % Set number of codewords

harqProcess.blkerr = zeros(1,ncw); % Initialize block errors

harqProcess.RVIdx = ones(1,ncw); % Add RVIdx to process

harqProcess.RV = rvsequence(ones(1,ncw));

% Create HARQ processes as indicated by numHARQProcesses

harqProcesses = repmat(harqProcess,numHARQProcesses,1);

end

Answer 1

[AnnQ]

Hello,

You can try adding a MATLAB Function block in your model which supports C/C++ code generation from Embedded Coder: https://www.mathworks.com/help/simulink/ug/what-is-a-matlab-function-block.html?searchHighlight=matlab%20function%20block&s_tid=srchtitle

Here is a simple example you can try to get started: https://www.mathworks.com/help/simulink/ug/creating-an-example-model-that-uses-a-matlab-function-block.html

Answer 2

[Janani Janagarajan Kalaivani]

Hi,

There are two possible workflows.

• Directly generate C++ code from the Matlab script using Matlab
• Use Matlab Function Block in Simulink and then generate C++ code using Simulink Coder

Since you have Embedded Coder, you have access to both Matlab Coder & Simulink Coder. Hence to assist you further, let me know your intended workflow.

Examples for Matlab Coder

https://www.mathworks.com/help/coder/ug/edge-detection-on-images.html

https://www.mathworks.com/help/coder/gs/generating-c-code-from-matlab-code-using-the-matlab-coder-project-interface.html

Examples for Simulink Coder

https://www.mathworks.com/help/simulink/slref/matlabfunction.html

Also, the below link gives you the list of functions compatible for Code Generation.

https://www.mathworks.com/help/referencelist.html?type=function&capability=codegen