5.1.2.20 ZDO_StartSyncReq Function

Syntax

ZDO_Status_t ZDO_StartSyncReq(void);

Description

The function starts sending sync requests (polling the parent). It turns ON the auto-polling mechanism if the ZDO_StopSyncReq() had previously turned it OFF. The stack, then, begins automatically sending polling requests to the parent.

• If the parent node receives data frames for the sleeping node, the node automatically requests for those stored data frames when it wakes up.
• Use this function only on end devices that can sleep and have CS_RX_ON_WHEN_IDLE set to false.
  • This setting ensures that the radio switches on only for a certain period when the stack sends data and waits for a reply.