1. Source insight with Z-Stack 김백규

2. Review

3. Z-Stack Structure

4. Contents Start with the main function. osal_init_system() osalAddTask() osalInitTasks() Define Simple Descriptor Task Init function Task Event processing function

5. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

6. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

7. osal_init_system() Task initialize

8. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

9. osalAddTask()

10. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

11. osalTaskInit() User Task ZigBee Task

12. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

13. osalTaskAdd Create a new Task Control Block

14. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

15. osalInitTasks Call every init function on each task added

16. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

17. SerialApp_init() We are using “Service Discovery”

18. Flow chart osal_init_system() osalTaskInit() osalAddTasks() osalInitTasks() osal_start_system() osalTaskAdd (MAC…) osalTaskAdd (NWK…) osalTaskAdd (USER…) SerialApp_Init() SerialApp_ProcessEvent() MAIN()

19. SerialApp_ProcessEvent()(1) Use a system event to process ZigBee packets

20. SerialApp_ProcessEvent()(2) We can also use user-defined events

21. Sending data to the ZigBee network Code for sending a packet to ZigBee network

22. Issues We don’t have to write all of these codes. Important to understand how the sending function works Good to know how Z-Stack works.