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CC2538 ZLL stack size, what is free for customers application

Matthias Schwark
Prodigy 60 points

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

Hello,

1. if a customer will go with the ZLL stack for the CC2538, which memory SRAM and Flash is free for their own application?

2. What do you recommend for a Fw OTA application? p.ex. additional external Flash?

 

3. How many nodes can be connect on a coordinator?

  • 0
    TI__Genius 10650 points

    Hello Matthias,

    ZigBee Light Link profile features are implemented in Z-Stack Lighting Software product, it does not support the CC2538 platform. Only the CC2530/1 platform are supported. Does your customer need to use the ZigBee Light Link Profile ? Or they can also use ZigBee Home Automation profile for lighting products.

    With CC2530 yes external flash would be recommended for OTA, with CC2538 and Z-Stack Home applications customer may be able to store two images concurrently and may not need an external flash. Please see the Z-Stack Home - 1.2.2 Sample Application Sample Switch, which also demonstrates OTA feature at C:\Texas Instruments\Z-Stack Home 1.2.2.42930\Projects\zstack\HomeAutomation\SampleSwitch. And also refer to the document Z-Stack Home Developer's Guide.pdf for more details on the Sample Switch OTA application.

    As you know, there is no coordinator in ZigBee Light link, but in Z-Stack Home a coordinator application can support out of box 20 child nodes which can be increased to max of 32. More nodes can be added to the network by adding routers which can allow more devices to join the network.

    Please let me know if you have any questions. Thanks.

    Regards

  • 0
    Guru 735695 points
    According to Zigbee alliance, ZLL and HA profile would converge to Zigbee 3.0. It is a good idea to follow Suyash's suggestion that use HA profile to implement lighting functions.
  • 0 in reply to YiKai Chen
    Prodigy 60 points
    Thanks
    What is the size of the ZLL stack for the CC2530? Flash and SRAM?
    I know that the stack of some competition companies is in a range of >170kB for the Flash and the recommend more than 20kB for the SRAM.
    The CC2530 has 8kB SRAM only, what mean that?
    - no customer application on the CC2530 possible
    - how many nodes can be connected on one device. I guess we will have a bottleneck here or?
  • 0 in reply to Matthias Schwark
    Guru 735695 points
    If you use medium optimization to build ZLL example for CC2530, it would cost 244.5K flash and 7.3K SRAM