How to use 'fmincon' in hardware through simulink without any code generation error?

Hello, I'm going to update a simulink program into hardware with a function 'fmincon', but there is one error about code generation, how can I solve it?

[Walter Roberson]

Which release are you using?

The documentation indicates that you need MATLAB Coder, and Embedded Coder too for deploy to hardware. There are a number of other restrictions too such as only supporting sqp or Sqp-legacy.

Generally speaking, Simulink Coder does not support matlab functions that you need Coder.extrinsic for.

[Jian Tian]

Thanks for your answer, I'm using MATLAB2018b. I have used 'coder extrinsic' in simulink to apply fmincon, and it worked well in only simulation process without hardware. But when deploying to hardware, the error occured.

Answer 1

[Walter Roberson]

Generally speaking, Simulink Coder does not support matlab functions that you need Coder.extrinsic for.

MATLAB Coder does support fmincon, under particular restrictions. As MATLAB Coder is a requirement to install Simulink Coder, then you can write your minimization code into a function, and use MATLAB Coder to generate C or C++ code for it. Then in your MATLAB Function Block, you can coder.ceval() the function you created -- or perhaps use a C Caller Block instead of MATLAB Function Block.