How to export Matlab LUT to C code using Embedded Coder?

Question

I have data from Simulink (Lookup tables generated from non-linear functions) 100x100 double array and my goal is to export it in the most efficient way from Matlab to C code so that I can implement it on a microcontroller and perform the interpolation.

I am interested in exporting the variables as opposed to functions which then I can easily use in the C files.

I have tried code generation with Matlab Coder however it is designed for converting Matlab function to C function which is not what I need.

Answer 1

Unfortunately, I haven't worked with Matlab for 10 years, so my answer may not be the best one.

As Jabberwocky already wrote, you might write a simple script that writes something like int foo[] = {... to a file.

Simulink models have a property named PostCodeGenCommand . This property contains a list of Matlab commands and/or scripts to be executed after RTW code generation. And the value (the list of commands) is saved in the Simulink (.mdl) file. Details are described on the MathWorks web site .

If you write the script writing the int foo[] =... in Matlab (.m) instead of C, you may add this script to the PostCodeGenCommand property so it is executed everytime you generate code.