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Is it possible to run Mesh Network on eZ430-RF2500

Emanuela A. Sayed
Prodigy 140 points
Other Parts Discussed in Thread: CC2500, SIMPLICITI, MSP430F2274

Hello...I'm an Engineer graduand student from Modena (Italy).

My project dealer gave me some MSP430 F2274 with CC2500 RF transceiver and he told me to implement a mesh network on it. I read some forum about this issue and right now I just know that it can't be done.

But I didn't understand exactly why I can't do it.

-  Why can't simpliciTI  support mesh networking?

-  Why can't MSP430 F2274 support mesh networking as well? Is it a memory problem? why?

I'd like to know some detail about it......

please help me.......

Thanks a lot.

  • TI__Guru 64470 points

    Emanuela A. Sayed said:

    My project dealer gave me some MSP430 F2274 with CC2500 RF transceiver and he told me to implement a mesh network on it. I read some forum about this issue and right now I just know that it can't be done.

    But I didn't understand exactly why I can't do it.

    -  Why can't simpliciTI  support mesh networking?

    The SimpliciTI protocol stack was not designed to deal with mesh networking.  This was a design decision on the protocol.  It will support a Star Network with an Access Point as the hub, as well as Reach Extenders, but fundamentally, it is a star network.

    If a mesh network is required, ZigBee will be needed.  There is an equivalent kit called the eZ430-RF2480 that implements a MSP430F2274+CC2480 (ZigBee Processor).

     

    Emanuela A. Sayed said:

    -  Why can't MSP430 F2274 support mesh networking as well? Is it a memory problem? why?

    Mesh networking requires ZigBee, which in turn requires a higher memory MSP430 device.

  • TI__Intellectual 1190 points

    Hi Emmanuel,

    In its basic form, mesh networking requires a routing table that is aware of more than the device it is part of.  

    For example, a router in Zigbee is aware of many child devices that it routes for and is able to route messages to other devices that have child devices.

    SimpliciTI natively does not support this routing outside it's own device, which lends itself a really good solution for Star or point to point networks.

     

     

  • in reply to BrandonAzbell
    Prodigy 140 points

    Hi again....

    I'm thinking to try to connect two Access Point..... I want them to speak each other and to behave as AP and ED at the same time....

    Is it possible? some idea?

  • in reply to Emanuela A. Sayed
    TI__Expert 3140 points

    A SimpliciTI network can only have a single AP; that's part of the specification. If you want mesh networking, you need to look at ZigBee.

    Scott

  • in reply to Notsane
    Prodigy 140 points

    I don't want a complicated mesh network, I just want two AP to behave as ED/AP at the same time......

  • in reply to Emanuela A. Sayed
    TI__Expert 3140 points

    I'll refer you to the SImpliciTI section here (http://tiexpressdsp.com/index.php?title=Low_Power_RF_Solutions#Workshop_Contents ). It if possible to have peer to peer links from an AP, but not multiple APs in a single SimpliciTI network. Maybe this will help.

    Scott