I understand that you are getting the error when using tcpclient in simulink matlab function block. Most of your errors are associated with Code generation aspect. MATLAB Function block within Simulink are designed to be compatible with code generation. Simulink uses the MATLAB Coder to automatically generate C/C++ code from the algorithms you write inside MATLAB Function blocks. You may fix these errors by following workarounds:
- Use a Supported Function: For example, you might use lower-level file I/O functions that are supported, although this may not be directly applicable for a TCP client.
- Use Interpreted Execution: If the writeline function is essential and there is no alternative that is compatible with code generation, you can configure the MATLAB Function block to execute as interpreted MATLAB code instead of generating C code. This means the code will run in MATLAB rather than being compiled to C/C++. Refer this: https://www.mathworks.com/help/simulink/ug/simulation-modes.html
- External Mode: If you are using the MATLAB Function block for real-time communication in external mode, you may need to create a custom S-Function or a System object that handles the TCP communication and is designed to support code generation. Refer this: https://www.mathworks.com/help/simulink/sfg/what-is-an-s-function.html
- Generate a MEX Function: If you are not trying to deploy the code but only want to accelerate simulation, you can generate a MEX function instead of standalone C/C++ code. MEX generation may support more functions than standalone code generation. Refer this: https://www.mathworks.com/help/matlab/call-mex-file-functions.html
Thanks,
Ayush
