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+=== Tasks ===
+
+^ os_tsk.new->task_id ^ Tasks ^ Stack Size ^
+| 0x01 | Main | 4*OS_MAINSTKSIZE |
+| 0x02 | Timer | 4*OS_TIMERSTKSZ |
+| 0xFF | Idle | 4*OS_STKSIZE |
+
+----------
+ |
+ V os_tsk.run->tsk_stack
+
+
+MAGIC_WORD os_tsk.run->stack[0]
+----------
+
+The current task structure is always pointed by:
+ struct OS_TSK os_tsk;
+
+=== Init Sequence ===
+OS:
+ * osKernelInitialize
+ * rt_sys_init
+ * rt_init_context
+ * rt_init_stack
+ * rt_set_PSP
+ * rt_init_robin
+ * rt_svc_init
+
+ * set_main_stack
+
+ * osThreadCreate(os_thread_def_main)
+ * rt_tsk_create
+ * rt_init_context
+ * rt_init_stack
+ * rt_dispatch
+
+ * osKernelStart