Can I use typedef in a C-file S-function?

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Brian Tremaine
Brian Tremaine 2021-10-20
编辑： Brian Tremaine 2021-10-20
I'm simulating some C code from an STM32 MCU in a Matlab Simulink model using a C-file S-Function. In my MCU code I use a typedef as follows:
typedef enum
{
DECEL = 0, //
ACCEL = 1, //
COAST = 2 //
} PFD_State_t;
I'd like to use this typedef in my S-Function mdlUpdate function to compute my algorithm using a case statement based on the enum. How do I do this? Can I include my own custom *.h file when compiling the S-Function?
Thanks,
Brianinclde
  2 个评论
James Tursa
James Tursa 2021-10-20
编辑：James Tursa 2021-10-20
You should be able to use any valid C/C++ code in an S-Function, including using header h files. Have you tried something that didn't work? Can you post it?
Brian Tremaine
Brian Tremaine 2021-10-20
编辑：Brian Tremaine 2021-10-20
I had not tried it until just now and it looks like it's working. The total model is not complete, but compiling does not return any complains.
I added the file phase_det.h in my local project directory where the *.slx file resides. In the S-Function file I added the line #include "phase_det.h".
In the mdlUpdate function I am declaring and assigning variables using the new type. It compiles without error; so no problems yet. I had seen some Matlab documentation on creating custom typedefs for Simulink and that was rather confusing to me, hence my question.
Thanks,
Brian

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