I am trying to load DLL file("main_functions.dll") explicitly on simulink using s-function builder, but it failed with error 127. However, when the DLL file is loaded on MATLAB through "loadlibrary" function, it works well. The DLL file is compiled separately with MinGW64 GCC compiler, not from MATLAB coder.
Environments:
- Windows 10
- MinGW64 GCC Compiler(Matlab and DLL Compiler)
To verify the DLL, It was tested on MATLAB with following code successfully
result = libpointer('singlePtr', rand([1,19]));
loadlibrary("main_functions", "main_functions.h");
calllib('main_functions', 'setup');
calllib('main_functions', 'predict', input_data, result)
Here is my s-function builder code
#include <windows.h>
#include "mex.h"
void predict_params_Start_wrapper(void **pW)
{
/* Start_BEGIN */
/*
* Custom Start code goes here.
*/
SetLastError(0);
HMODULE dllhandle;
//setup_func f_setup_func;
dllhandle = LoadLibrary("main_functions.dll");
if (dllhandle != NULL) {
mexPrintf("Successfully loaded\n");
}else {
mexPrintf("Failed to load %d\n", GetLastError());
}
}
It returns "Failed to load 127". But when the DLL file is loaded on MATALB, it returns "Successfully loaded".
