RE: Help to understand spawning of threads

Raoul — Thu, 07 Jul 2022 16:33:17 GMT

Hi Elias,

Your compiler is probably complaining about your use of (void)spam(&c) in k_thread_create() on line 29. Arguments p1, p2 and p3 of k_thread_create() are there for you to provide arguments for your thread entry function. So in this case, all you have to do is move the argument of spam() into the neighbouring argument like so:

k_tid_t my_tid = k_thread_create(&my_thread_data, my_stack_area, 
                                    K_THREAD_STACK_SIZEOF(my_stack_area), 
                                    spam, &c, NULL, NULL, 
                                    THREAD_PRIORITY, 0, K_NO_WAIT);

When I do that on my machine, I can see your two threads writing "HI" alternatingly. Hope this helps.

Best regards,

Raoul Pathak