Response of AF_Data and ZCL_CMD_Report

You can enable APS ack on application level.

Can you specify, how to use it. And where i will get  acknowledgement in my Application. 

Except enable AF_ACK_REQUEST, you also need to register it using zcl_registerClusterOptionList API in your zclXXX_init(). If  AF_DataRequest()was invoked with the
AF_ACK_REQUEST flag, then ZSuccess signifies that the message was delivered to the destination address.

1)what is AF_ACK_REQUEST flag?it is a compile option? I will get confirmation by AF_DATA_CONFIRM???

2)For zcl_SendReportCmd, i need to send zcl_SendDefaultRspCmd from Coordinator after getting each report?

1. When you use AF_DataRequest API, there is options parameter and you need to enable AF_ACK_REQUEST bit on it. Please refer to Z-Stack API.pdf for API details

2. No, you don't need to do that. ZStack will do the ack for you.

Thank you Mr.Chen. One last question, if i send a report zcl_SendReportCmd from End device to Coordinator, According to zstack, i will get a response after deliver that report to Coordinator by ZCL_CMD_DISCOVER_RSP in the Ene device automatically, i m right? Correct me if am wrong

You should use AF_DATA_CONFIRM_CMD event. Please refer to http://e2e.ti.com/support/low_power_rf/w/design_notes/using-the-af-data-confirm-cmd-system-event-in-the-z-stack-to-track-acknowledgements-zigbee.aspx for details.