Problems with Nucleo-F303RE Posted by marco73it on 2017-04-11 09:25 I do not understand what you mean with "should have STM32F303xE defined". Do you mean that I should put a define STM32F303xE xxxxxxxx in the code and, in this case, what is the value to assign to STM32F303xE? Where the assignement should be made? In main.c?