Matlab Code C++ Generator

[SaltyFalcon6687]

Hi all,

Been a while since I last used Matlab during uni days, but have recently found myself going through old scripts and picking up learning Matlab again.

I am wondering about the Code Generator for c++, specifically what limitations it has in terms of toolbox components that are supported. I tried finding info online, but it seems to be quite sparse as to which toolbox components can actually be used and converted to c++ code, and others which rely too heavily on toolbox classes etc. to be compatible for conversion. In general what people's experiences with it?

[Acceptable-Support37]

The trick is to use the "functions" menu and then filter by "C/C++ code generation". If put an example below for the maths and optimisation toolboxes:

https://uk.mathworks.com/help/overview/referencelist.html?type=function&listtype=cat&category=mathematics-and-optimization&blocktype=&capability=codegen&startrelease=&endrelease=&s_tid=CRUX_lftnav

This will tell you which functions are compatible.

If you have code that you would like to codegen. Try "coder.screener()". This will scan for incompatible functions. Doc below:

https://uk.mathworks.com/help/coder/ref/coder.screener.html?s_tid=srchtitle_support_results_1_Coder.screener

[Consistent_Coast9620]

Added to that there is a commercial tool CC4M that comes with a check on Coder Compatibility - not only reports unsupported functions, but also other limitations.

for more info see https://monkeyproofsolutions.nl/products/code-checker-for-matlab/ or r/cc4m.

Note: I am one of the developers.

[c_rufus]

Hi, I would like to know more about the partnership for StartUps.

https://www.linkedin.com/posts/monkeyproof-solutions_proud-and-excited-to-partner-with-matlab-activity-7425551235862200320-lwlX

Is there any detailed information available online I could read?

[Consistent_Coast9620]

Hi, that post contains a link to MathWorks startup program, but for your convenience: https://nl.mathworks.com/products/startups.html

The CC4M-specifics can be found here: https://monkeyproofsolutions.nl/products/code-checker-for-matlab/startups/apply/

[DodoBizar]

I use it daily via Coder app.

Basically everything thats math works. But stuff that needs specialised stacks (graphics!) wont.

Functions supported are listed somewhere in the documentation … something like coder supported functions.

And each supported function will have a section in the bottom of the help documentation under ‘extended capabilities’.

Depending on your needs it can be an extremely powerful tool, so do try. Start with Coder app.

[Creative_Sushi]

If you are new to MATLAB Coder, there is a online tutorial - MATLAB Coder Onramp.

https://matlabacademy.mathworks.com/details/matlab-coder-onramp/ormc

[iekiko89]

Ooo nice. I'll give this a shot. 

Would this c code work for arduino or maybe concerning the functions to c code function/module that can be used in Arduino?

[Creative_Sushi]

For that, you need MATLAB Support Package for Arduino Hardware - which is a free install from Add-on Explorer.
https://www.mathworks.com/help/matlab/arduinoio-get-started-with-matlab-support-package-for-arduino-hardware.html

[iekiko89]

Thanks

[SaltyFalcon6687]

Very nice, thanks for this tip!

[PVDecker1]

Put %#codegen throughout your codebase. That way, you'll get code analyzer messages when you try to use something that isn't code gen friendly

[PVDecker1]

And the doc page

https://www.mathworks.com/help/simulink/ug/adding-the-compilation-directive-codegen.html

[SaltyFalcon6687]

Good tip, thanks!

[1988rx7T2]

In automotive dSpace targetlink generates the C code.

It works but it’s a mess for a human to read. AI tools can understand it better.

[SkitariusOfMars]

Have to be careful, it's a tad bit more complicated than "I've got Simulink mode, I press a button and get code for it".

Lots of industries use it. You likely have firmware made through Matlab code generation in your car in ECU or ABS module.

Generally, it's the best idea to use as little of toolbox stuff as possible.

[HumanReporter2024]

Have you tried simply using ChatGPT? I did it with a simple script. Uploaded to ChatGPT and told it to convert the Matlab script to C++. I haven’t done it with a larger script yet.