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CC2642R-Q1: RADAR Time of Flight (TOF) - Measurement Packets Contents

Part Number: CC2642R-Q1

Hi E2E Team,

Good day...

Regarding the details of the Measurement Data Packets used for ToF,

as stated above, packet contents or details are based on Standard BLE, but with some modifications. 

I would like to know the details of each bit in the Preamble and 64-bit random Sync Word.

I am hoping that someone could give me an idea on where these details can be found.

Best Regards

  • Hi Donatz,

    Preamble is standard in RF and is just a header to allow the radio to synchronize to the preamble and get ready to read the data of the packet being sent. The preamble will always be 0x55. The Sync Word in this case is a 64-bit identifier that is the basis of TI Time of Flight to help protect against relay attacks. The sync word is unique in each frame that is sent over the air to help prevent against the relay attack. 

    However, as I have indicated in our other thread here: https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/p/889760/3302925#3302925

    TI has made the decision to discontinue further development and support of the TI-proprietary ToF. We are placing an emphasis on creating a standard for secured ranging technologies and intend to convert the existing technology when these solutions become available.

  • Hi Evan,

    Thank you for your response...

    I am actually referring to contents, as in detailed information similar to image shown below:

    About your statement that : TI has made the decision to discontinue further development and support of the TI-proprietary ToF

    I want to clarify my understanding.

    Does this mean, TI ( including E2E Forum) will not support (or answer) any inquiries relating ToF from now on?

    I do understand that TI (within your company) further development would cease to continue. But as for the "to discontinue support", does this mean TI would also cease to share or clarify pre-existing information/ knowledge about the TI ToF?

    Best Regards,