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Z Stack Lighting Source Routing

Sjef de Krijger
Expert 1405 points

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

Hi,

I've read the 'Breaking the 400 Node barrier' pdf and it gave me some good insights about source routing and many to one routing. The part about APS ACK was especially interesting to me - it should increase reliability of the concentrator to the routers.

If I understand correctly, enabling APS ACK would require the concentrator to (ideally) have a route in memory for each router. In the pdf there's talk about a concentrator 'with' memory, meaning that it has more memory than the standard CC2530, is that right? It's implicit from the possibility to set a flag saying there's no memory constraint...

How would I go about adding RAM to an existing CC2530, it seems impossible. Maybe I need another device for my concentrator? Or maybe use an external flash?

I'm very interested in your opinion about this.

Regards,

Sjef.

  • 0
    TI__Genius 16570 points

    Hi,

    in source routing scenario, adding RAM is always a good option if the concentrator stores the route for all the devices in the network. Devices like CC2538 have 32KB of RAM and can serve this purpose.

    Please see the chapter 5.4 Many-to-one routing protocol in Z-stack developer guide for more information on how to handle scenarios with lesser memory 

    Thanks,

    TheDarkSide