case ZDO_STATE_CHANGE:的状态

节点的每次状态改变都有跳转到 case ZDO_STATE_CHANGE:下吗？ 例如节点先加入到一个协调器组成的网络中，然后协调器断电了，这时节点应该重新搜网，这时的网络状态应该是变化的，但好像程序再不进入到 case ZDO_STATE_CHANGE下进行了，加一个个串口打印状态，只有第一次加入有输出，协调器断电，就没有输出了？

case ZDO_STATE_CHANGE:
SampleApp_NwkState = (devStates_t)(MSGpkt->hdr.status);
if ( //(SampleApp_NwkState == DEV_ZB_COORD)
(SampleApp_NwkState == DEV_ROUTER)
|| (SampleApp_NwkState == DEV_END_DEVICE) )
{
// Start sending the periodic message in a regular interval.
HalUARTWrite(0,"change state\n",13);

因为不满足你的if条件，所以打印不出，协调器断电，节点成孤点了，一直在搜网，SampleApp_NwkState == DEV_NWK_ORPHAN；

你可以打断电查看下 SampleApp_NwkState 的值。

ZDApp.h中：

typedef enum
{
DEV_HOLD, // Initialized - not started automatically
DEV_INIT, // Initialized - not connected to anything
DEV_NWK_DISC, // Discovering PAN's to join
DEV_NWK_JOINING, // Joining a PAN
DEV_NWK_REJOIN, // ReJoining a PAN, only for end devices
DEV_END_DEVICE_UNAUTH, // Joined but not yet authenticated by trust center
DEV_END_DEVICE, // Started as device after authentication
DEV_ROUTER, // Device joined, authenticated and is a router
DEV_COORD_STARTING, // Started as Zigbee Coordinator
DEV_ZB_COORD, // Started as Zigbee Coordinator
DEV_NWK_ORPHAN // Device has lost information about its parent..
} devStates_t;

谢谢，我试试看。

不能加入协调器的原因找到了，协调器重新启动后，PANID变了，节点还在找原来ID的网络，所以不加入新的网络中