Task Management
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Figure 5-1 OSTaskCreate() initializes the task’s TCB and stack
F5-1(1)
When calling OSTaskCreate() , one passes the base address of the stack
( p_stk_base ) that will be used by the task, the watermark limit for stack
growth ( stk_limit ) which is expressed in number of CPU_STK entries before
the stack is empty, and the size of that stack ( stk_size ), also in number of
CPU_STK elements.
F5-1(2)
When specifying OS_OPT_TASK_STK_CHK + OS_OPT_TASK_STK_CLR in the opt
argument of OSTaskCreate() , μC/OS-III initializes the task’s stack with all zeros.
79
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