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Common Zigbee Question

suman Raj
Expert 1550 points

Other Parts Discussed in Thread: CC2538, CC2530, CC2592, Z-STACK

Hello,

   I have some question,

1. When End Device sent a beacon Request initially, what it is sending in beacon Format( like Pan ID, Profile ID) 

2. It is Possible to broad cast the data from the End Device with out joining to network. Because i used Bluetooth to broad cast the Data with out paring to any Devices.  Same is possible in Zigbee.    

3. It is possible to that CC2530 End device/Router can join to CC2538 Router/Coordinator

  • 0
    Guru 735695 points
    1. You can refer to Zigbee and IEEE 802.15.4 standard.
    2. No, an device has to join a specific Zigbee network before it can do broadcast in a Zigbee network.
    3. Yes, it is absolutely no problem.
  • 0 in reply to YiKai Chen
    Expert 1550 points
    Thanks Mr.Chen,
    1) I have seen the Beacon format. There are fields like Source Address, PAN Coordinator. If Device is configured as End device, which is looking for new Network to join. Then what will be in Source Address and PAN Coordinator Field. If i am pointing to wrong thing, Can you provide me link. Where it clearly tells the format of Beacon.

    2) Even Coordinator is also sending a beacon Request initially before starting the Network(Active Scan). Is this Beacon format is same as what End device is sending
  • 0 in reply to suman Raj
    Guru 735695 points
    I think you mess up beacon request and beacon in Zigbee spec. Try to read the article at http://www.freaklabs.org/index.php/Blog/Zigbee/Zigbee-Network-Layer-Tutorial-Part-4-Network-Management-1.html
  • 0 in reply to YiKai Chen
    Expert 1550 points
    Thanks for your link. I have few more Question

    1. How to use RF front End(CC2592) which is Connect to CC2538. If i am using ZStack Home 1.2.1. Whether it will use RF front End or i need to modify any thing in the Stack.

    2. Is Binding Table and Routing Table is Different. If yes, Who will maintain these Table Router or Coordinator?

    3. I know there is no Child Ageing in the Zigbee, If Child is Disconnected(Switch Off). The information will remain in the Binding/Routing Table, when it will Delete from that Table.
  • 0 in reply to suman Raj
    Guru 735695 points

    1. You can refer to CC2538-CC2592emk. To enable CC2592 support in Z-Stack, you have to define HAL_PA_LNA_CC2592 in your project.

    2. Binding table and routing table are different. For routing table, it is maintained by both coordinator and router.

    3. If a child is aged out fro its parent node, it would be removed from association table not routing table or binding table.