Beginner problems with semaphores

noobdeluxe2000 wrote on Thursday, April 24, 2014:

Hi again…
I am having som troubles using the the using semaphores.
I’ve declarated it as
extern xSemaphoreHandle mutex;

in my .h file and included in my main where I initiated like this

mutex = xSemaphoreCreateMutex();

The error message i am getting is that it has an undefined reference to my mutex, which i don’t understand since i’ve included the .h file of it’s initiation??..

noobdeluxe2000 wrote on Thursday, April 24, 2014:

Problem solved.