Z-stack

Hi Tuan,

If you build example Coordinator and End Device devices from the samples that ship with the stack, the Coordinator will start a PAN automatically and any End Device will join at startup by default.  In code, you can discover when the device has joined using the method I described in this post: http://e2e.ti.com/support/low_power_rf/f/158/t/105483.aspx.

You will want to make sure that in the config files, f8wCoord.cfg, f8wEndDevice.cfg and f8wConfig.cfg have compatible definitions, specifically PANID (ZDAPP_CONFIG_PAN_ID) and Channels (DEFAULT_CHANLIST).

Typically, even if you compile the stack without any application code they will create or join a network automatically.  The minimum reauired is to specify the task event handler function pointer array, const pTaskEventHandlerFn tasksArr[], and the task initialization function, void osalInitTasks( void ).  In the sample applications you can find these in a file called Sample_OSAL.c or something similar in the App file group.

For a fully functional stack without any application code, you will need:

const pTaskEventHandlerFn tasksArr[] = {

macEventLoop,

nwk_event_loop,

Hal_ProcessEvent,

#if defined( MT_TASK )

MT_ProcessEvent,

#endif

APS_event_loop,

#if defined ( ZIGBEE_FRAGMENTATION )

APSF_ProcessEvent,

#endif

ZDApp_event_loop,

#if defined ( ZIGBEE_FREQ_AGILITY ) || defined ( ZIGBEE_PANID_CONFLICT )

ZDNwkMgr_event_loop,

#endif

}

and

void osalInitTasks( void )

{

T_uint8 taskID = 0;

tasksEvents = (T_uint16 *)osal_mem_alloc( sizeof( T_uint16 ) * tasksCnt);

osal_memset( tasksEvents, 0, (sizeof( T_uint16 ) * tasksCnt));

macTaskInit( taskID++ );

nwk_init( taskID++ );

Hal_Init( taskID++ );

#if defined ( MT_TASK )

MT_TaskInit( taskID++ );

#endif

APS_Init( taskID++ );

#if defined ( ZIGBEE_FRAGMENTATION )

APSF_Init( taskID++ );

#endif

ZDApp_Init( taskID++ );

#if defined ( ZIGBEE_FREQ_AGILITY ) || defined ( ZIGBEE_PANID_CONFLICT )

ZDNwkMgr_Init( taskID++ );

#endif

}

For your own application code, define your own ProcessEvent() function and Init() function and add references to the OSAL as above.  I hope this is of some help.

iR.