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CC2650 ZNP: "broadcasting" to entire channel

Stephanie Werner
Expert 1665 points
Other Parts Discussed in Thread: CC2650, CC2538, CC2630, Z-STACK, CC2531

Hi,

i am tinkering around on the ZNP and have been trying to get my CC2650 to "blindly" send out a (802.15.4-)packet to an entire channel instead to its PAN.

I've tried building a ZMacDataReq struct and calling "uint8 ZMacDataReqSec( ZMacDataReq_t *pData, applySecCB_t secCB )" manually but i can't see anything on my packet sniffer. Maybe my parameters are off or i am missing something else.

Is it possible to bypass the upper layers and directly call the mac-layer functions and send out a packet on a specific channel to no specific PAN?

And if so, am i on the right track, or would i have to do it in a different way?

  • 0
    TI__Genius 9180 points

    You can use the AF_DATA_REQUEST_EXT command, but be sure to set the dst endpoint to 0xFE.

    I just tested this on CC2538 ZNP using the ZNP Host Framework command line trainer (more info on this here www.ti.com/.../tidc-znp-host-sw3):

    Enter CMD
AF_DATA_REQUEST_EXT

Command: AF_DATA_REQUEST_EXT
Enter DstAddrMode: (1B)
2
Enter DstAddr: (8B)
000000000000ffff
Enter DstEndpoint: (1B)
fe
Enter DstPanID: (2B)
ffff
Enter SrcEndpoint: (1B)
1
Enter ClusterId: (2B)
1
Enter TransId: (1B)
1
Enter Options: (1B)
1
Enter Radius: (1B)
1
Enter Len: (2B)
3
Sending AF_DATA_REQ_EXT
2:ff:ff:0:0:0:0:0:0:fe:ff:ff:1:1:0:1:1:1:3:0:f0:5:0:

    It should also work on CC2630 ZNP, but at the minute I do not have a way to connect the CC2630 UART to my PC.

    You should also be able to receive the interpan commands by using AF_APSF_CONFIG_SET. Refer to section 4.4.5 AF_INTER_PAN_CTL of the Z-Stack ZNP Interface Specification.pdf (from the Documents folder of the ZStack-Home install).

    Regards, TC

  • 0 in reply to TopCat
    Expert 1665 points

    Hi TopCat,
    thanks for your answer - and sorry for not responding earlier, but i was tasked with a different rather urgent matter and so i couldn't further look into this until now. I've done it the same way on the cc2650 i got here and it works perfectly.
    I've been trying to use the AF_DATA_REQUEST_EXT earlier, but i didn't think to use 254 as dst endpoint.

    Do you think it would be possible for another cc2650 to sense/pick up this packet(s)?


    edit: i know the Z-Stack ZNP Interface Specification.pdf and just looked at it again, but section 4 General Information only contains document history.

    Did you mean the Z-Stack Monitor and Test API.pdf?

  • 0 in reply to Stephanie Werner
    TI__Genius 9180 points
    The answer to this can by found at e2e.ti.com/.../1522100

    Regards,
    TC.
  • 0 in reply to TopCat
    Expert 2650 points
    Hi,

    I followed the above instruction for configuring cc2531 znp host framework and could successfully transmit the message with below configuration:
    DataRequestExtFormat_t DataRequestExt;
    DataRequestExt.DstAddrMode = 2;
    DataRequestExt.DstAddr[0] = 0x00;
    DataRequestExt.DstAddr[1] = 0x00;
    DataRequestExt.DstAddr[2] = 0x00;
    DataRequestExt.DstAddr[3] = 0x00;
    DataRequestExt.DstAddr[4] = 0x00;
    DataRequestExt.DstAddr[5] = 0x00;
    DataRequestExt.DstAddr[6] = 0xFF;
    DataRequestExt.DstAddr[7] = 0xFF;
    DataRequestExt.DstEndpoint = (uint8_t) 0xFE;
    DataRequestExt.DstPanID=0xFFFF;
    DataRequestExt.SrcEndpoint = 10;
    DataRequestExt.ClusterId = 1;
    DataRequestExt.TransId = 5;
    DataRequestExt.Options = 0x20;
    DataRequestExt.Radius = 0xEE;
    DataRequestExt.Len = 3;
    DataRequestExt.Data[0]='0';
    DataRequestExt.Data[0]='0';
    DataRequestExt.Data[0]='1';
    afDataRequestExt(&DataRequestExt);

    However, I'm unable to receive the message in ZED. I configured ZED as suggested in e2e.ti.com/.../302731

    Can you please help with required settings in ZED to receive inter pan messages.

    Regards
    Srikanth
  • 0 in reply to Srikanth R
    Guru 735685 points
    Why do you set destination endpoint to 0x FE?
  • 0 in reply to YiKai Chen
    Expert 2650 points

    I was just following instruction as per the earlier post. Does it mean all end points except Coordinator?

  • 0 in reply to Srikanth R
    Guru 735685 points
    Earlier post? Zigbee application can only use 1 to 240 as endpoint. 1 and 241 to 255 are reserved.
  • 0 in reply to YiKai Chen
    Expert 1665 points

    @Srikanth

    i didn't get it to work now with the above settings either somehow. However, if i set

    DataRequestExt.DstAddr[0] = 0x3D;
DataRequestExt.DstAddr[1] = 0x1A;
DataRequestExt.DstAddr[2] = 0x00;
DataRequestExt.DstAddr[3] = 0x00;
DataRequestExt.DstAddr[4] = 0x00;
DataRequestExt.DstAddr[5] = 0x00;
DataRequestExt.DstAddr[6] = 0x00;
DataRequestExt.DstAddr[7] = 0x00;

    (3D1A being the short-adress of my end device) i was able to receive the message when registering e.g. 1 as endpoint and then use "AF_INTER_PAN_CTL" cmd '2' and data '1' on the end device

  • 0 in reply to Stephanie Werner
    Guru 735685 points
    I don't understand your question well. Can you elaborate?
  • 0 in reply to YiKai Chen
    Expert 1665 points
    It wasn't a question, it was an answer to Srikanth :)
    Sorry, i always press the reply button below the last answer, forgetting that it then in this case says "in reply to YiKai Chen"
  • 0 in reply to Stephanie Werner
    Expert 2650 points
    Hi Stephanie, Thank you.. How did you find out the destination network address when the device is not in the network?
    Did you try transmitting intepan message with 64bit ieee address?

    @Yikai Chen TopCat used 0xFE end point "You can use the AF_DATA_REQUEST_EXT command, but be sure to set the dst endpoint to 0xFE"
  • 0 in reply to Srikanth R
    Guru 735685 points
    So, you are using INTER-PAN communication. You can try to set a breakpoint in INTERP_DataIndication and see if it is hit.
  • 0 in reply to Srikanth R
    Expert 1665 points
    You can get the short address through the MT-Command "ZB_GET_DEVICE_INFO" or "UTIL_GET_DEVICE_INFO" commands
    no, i did it with the options you mentioned above but changed the destination address in the way i posted earlier.
  • 0 in reply to Stephanie Werner
    Expert 2650 points
    @Stephanie
    Thank you.. I could broadcast the message with below settings:

    DataRequestExtFormat_t DataRequestExt;
    DataRequestExt.DstAddrMode = 2;
    DataRequestExt.DstAddr[0] = 0xFF;
    DataRequestExt.DstAddr[1] = 0xFF;
    DataRequestExt.DstAddr[2] = 0x00;
    DataRequestExt.DstAddr[3] = 0x00;
    DataRequestExt.DstAddr[4] = 0x00;
    DataRequestExt.DstAddr[5] = 0x00;
    DataRequestExt.DstAddr[6] = 0x00;
    DataRequestExt.DstAddr[7] = 0x00;
    DataRequestExt.DstEndpoint = 0xFE;
    DataRequestExt.DstPanID=0xFFFF;
    DataRequestExt.SrcEndpoint = 10;
    DataRequestExt.ClusterId = 1;
    DataRequestExt.TransId = 5;
    DataRequestExt.Options = 0x00;
    DataRequestExt.Radius = 0x01;
    DataRequestExt.Len = 3;
    DataRequestExt.Data[0]='0';
    DataRequestExt.Data[1]='0';
    DataRequestExt.Data[2]='5';
    afDataRequestExt(&DataRequestExt);