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Access point communicating between another access point

Isaac Puckett
Intellectual 990 points
Other Parts Discussed in Thread: SIMPLICITI, Z-STACK, CC2530, CC2480A1, CC2538

Hello,

I am working with the ez430-rf2500 development kit and I am trying to make a network that can have multiple access points communicating with each other. I am using the back bone of the Wireless Sensor network demo code from TI. First, I initialize the network by telling the stack that I am an AP with the method below:

SMPL_Init(sCB);

So far I create a address for my device and push it onto the network stack with the method below:

  SMPL_Ioctl(IOCTL_OBJ_ADDR, IOCTL_ACT_SET, &lAddr);

If I interpret this correctly, it will alert any AP(excluding itself) in the area that I am trying to connect with them. Then to do a sanity check and power saving mode I check to see if they are paired devices by:

while(1)

{

if(sNumCurrentPeers==0)
      {
        //go to sleep
        SMPL_Ioctl(IOCTL_OBJ_RADIO, IOCTL_ACT_RADIO_SLEEP, 0);
        __bis_SR_register(LPM3_bits+GIE);
        SMPL_Ioctl( IOCTL_OBJ_RADIO, IOCTL_ACT_RADIO_AWAKE, 0);
      }

else

{

break;

}

}

However, I am never able to get any peers with this method. Does anyone have any suggestions on what I am doing wrong?

  • 0
    TI__Guru* 77551 points

    Hi Isaac,

    I have moved this to the SimpliciTI forum, as it looks like this is a question about using the SimpliciTI software rather than one about MSP430. Hopefully someone there will be better able to give you advice.

    Regards,

    Katie

  • 0 in reply to Katie Pier
    Intellectual 990 points

    Okay,

    Thanks for the moving me to the right forum!

  • 0
    TI__Guru 56650 points

    Isaac,

    Isaac Puckett said:

    First, I initialize the network by telling the stack that I am an AP with the method below:

    SMPL_Init(sCB);

    Defining a node as Access Point (AP) can be done only at compile time, by defining ACCESS_POINT symbol in you smpl_config.dat file.

    Isaac Puckett said:

    So far I create a address for my device and push it onto the network stack with the method below:

      SMPL_Ioctl(IOCTL_OBJ_ADDR, IOCTL_ACT_SET, &lAddr);

    Yes, this is an alternative to override the device address configuration (THIS_DEVICE_ADDRESS symbol) in your smpl_config.dat

    Isaac Puckett said:

    If I interpret this correctly, it will alert any AP(excluding itself) in the area that I am trying to connect with them. Then to do a sanity check and power saving mode I check to see if they are paired devices by:

    while(1)

    {

    if(sNumCurrentPeers==0)
          {
            //go to sleep
            SMPL_Ioctl(IOCTL_OBJ_RADIO, IOCTL_ACT_RADIO_SLEEP, 0);
            __bis_SR_register(LPM3_bits+GIE);
            SMPL_Ioctl( IOCTL_OBJ_RADIO, IOCTL_ACT_RADIO_AWAKE, 0);
          }

    else

    {

    break;

    }

    }

    However, I am never able to get any peers with this method. Does anyone have any suggestions on what I am doing wrong?

    The ED and the AP needs to be first joined and then linked. For this, i would suggest to refer to the "AP_as_Data_Hub" software examples which can be found for every device platform in the software package.

  • 0 in reply to Leo Hendrawan
    Intellectual 990 points

    Thanks for your help. I realized that the simplicity protocol does not allow an AP to also be and ED to create a pseudo mesh network. I am now looking at the ez430-rf2480 development kit to allow me to create something like this with the zigbee protocol. 

  • 0 in reply to Isaac Puckett
    TI__Guru 56650 points

    Isaac,

    ez430-RF2480 is obsolete, I would strongly suggest you to instead look for other zigbee kit which is still active and supported by the Z-Stack, like the CC2530DK, CC2538DK, etc.

    More information: http://www.ti.com/lsds/ti/wireless_connectivity/zigbee/tools_software.page

  • 0 in reply to Leo Hendrawan
    Intellectual 990 points

    I wasn't aware of how dated it was. I was only looking at it because it is very similar to the ez430-RF2500 that I am currently using. Is there a newer development kit that can support mesh networking?

  • 0 in reply to Isaac Puckett
    TI__Guru 56650 points

    Isaac,

    all the kits which you can find at my link above are supported by Z-Stack: www.ti.com/tool/z-stack which is the implementation of ZigBee with mesh network.

  • 0 in reply to Leo Hendrawan
    Intellectual 990 points

    I see,  I was attracted to the Ez430-RF2480 because they all appeared to be the same chip but only one was on a dongle. I am confused on what the SmartRF05EB does exactly. Is it an interface to the dongles from the PC?

  • 0 in reply to Isaac Puckett
    TI__Guru 56650 points

    Hi Isaac,

    the eZ430-RF2480 is using the obsolete CC2480A1. Depending on your application, you can choose between CC2530 or CC2538 for implementing ZigBee Mesh Network using the Z-Stack.

    The SmartRF05EB is like the base board for the CCxxxxEMK daughter boards. Most of the CC25xxEMK can be plugged in to the SmartRF05EB as it acts as the hardware debugger/programmer interface to these EMK boards.