Dear Martin Kovar
Thank you for your answer of my question ! But I still have some questions I want to consult you .
As we know , in a dual-processor chip, semaphores are used to let each processor know who has control of common memory.
I want to know whether the global variable is set default in both core's common memory. If not , can you ask me how to configure shared memory and make global variable in the shared memory .
Hope to get your help !