STM32 NUCLEO fatal error: No such file or directory #include "main.h"

When I connect NUCLEO-F411RE and try to create code, the compiler gives me an error:

C:/ST_simulink/test_ert_rtw/test.h:21:18: fatal error: main.h: No such file or directory

#include "main.h"

Indeed, such a file is not created. I repeat as shown in the examples, but I can’t even start code generation. What's my problem?

Answer 1

[Umar]

Hi Anton,

To resolve this error and enable successful code generation for NUCLEO-F411RE, you need to create the missing "main.h" file in your project directory. Here is an example of how you can create a basic "main.h" file:

% Create main.h file

fid = fopen('main.h', 'w');

fprintf(fid, '#ifndef MAIN_H\n#define MAIN_H\n\n#endif /* MAIN_H */\n');

fclose(fid);

By running this code snippet in Matlab, you will generate a simple "main.h" file that includes the necessary header guards to prevent multiple inclusions.

Hope this will help resolve your problem.

Answer 2

[Saurav Shandilya]

Hi @Anton Sychugov,

Based on screenshot, issue seems to be Build Toolchain. You are using MingGW64 which is primarily used to compile for native Windows applications. In Current case, we are trying to compile for ARM based MCU. Hence you should use GNU Tools for ARM Embedded Processors. I tried the same, and build goes fine. Refer below screenshot.

There are getting started example. You use them to test your setup and get a boiler plate to start with.

• Example for Simulink Coder Support Package for STMicroelectronics Nucleo Boards

https://www.mathworks.com/help/rtw/nucleo/ug/getting-started-with-simulink-coder-support-package-for-stmicroelectronics-nucleo-boards.html

• Example for Embedded Coder Support Package for STMicroelectronics STM32 Processors

https://www.mathworks.com/help/ecoder/stmicroelectronicsstm32f4discovery/ug/Getting-started-stm32cubemx.html

Thanks,

Saurav