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OS with constraints for STM32F4 discovery

Question asked by bousson.valentin on Feb 27, 2014
Latest reply on Feb 28, 2014 by Clive One
Hello all,
I bought a STM32F4 Discovery recently, and I am trying really hard to find an OS that could help me to port a POSIX application I have developed.

The problem is that my application use some plugin mechanisms and use  POSIX dlfcn. I have tried some differents OS, as CHibiOS, FreeRTOS and eCOS, but I don't manage to find a simple one that support standard/official BSP (that could allow me to debug over the LCD screen, and to easily use Ethernet port / Wifi extension for example), and that support a File system + a dynamic loading mechanism.

If you have some idea/suggestions, I plan to give NuttX and uC/OS-III a try, if possible, but I would like to have you opinion.
Is it possible to find such a complete OS ?

Thank you by advance
Valentin BOUSSON