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Task Management
void SomeCode (void)
{
CPU_STK *p_stk;
:
:
p_stk = (CPU_STK *)malloc(stk_size);
if (p_stk != (CPU_STK *)0) {
Create the task and pass it “p_stk” as the base address of the stack;
}
:
:
}
See section 5-2 “Determining the Size of a Stack” on page 86.
F5-2(5)
A task can also have access to global variables. However, because μC/OS-III is
a preemptive kernel care must be taken with code when accessing such
variables as they may be shared between multiple tasks. Fortunately, μC/OS-III
provides mechanisms to help with the management of such shared resources
(semaphores, mutexes and more).
F5-2(6)
A task may also have access to one or more Input/Output (I/O) devices (also
known as peripherals ). In fact, it is common practice to assign tasks to manage
I/O devices.
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