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Original question:

LAUNCHXL-CC1352R1: 1 Mbps data rate with CC1352

LAUNCHXL-CC1352R1: Change Sync Word length when using BLE PHY

Logan Grout
Prodigy 20 points
Part Number: LAUNCHXL-CC1352R1


I am using a CC1352R1 as a receiver. The packets I am trying to receive are in the 2.4 GHz band at a 1Mbps data rate, so I would like to take advantage of the BLE PHY. However, the sync word is not 32 bits. Is there a way to change the length of the sync word when using CMD_BLE5_RADIO_SETUP?

  • 0
    TI__Guru** 106705 points
    Hi Logan,

    The BLE packet format is fixed, so there is no way to change the sync word when using the BLE APIs.

    We are looking into enabling the BLE PHY for proprietary protocols, but there is no firm plan in place for this.

    Regards,
    Fredrik
  • 0 in reply to Fredrik K
    Prodigy 20 points

    Hi Fredrik,

    Thank you for the response. Your answer also seems to give an answer to a follow up question I had, but just for completeness I would like to confirm.

    As a work around, I was using the proprietary setup commands (I tried both CMD_PROP_RADIO_SETUP and CMD_PROP_RADIO_DIV_SETUP) and attempting to best emulate the BLE PHY. This had some success but when doing so I received significantly less packets and they had significantly lower RSSI. My question was going to be if this strategy was viable and if adjusting some settings or overrides would improve capturing, but it sounds like the problem is that the proprietary commands don't take advantage of the BLE PHY. Is that correct?