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CC3135: Antenna selection on CC3135/3235

Akihiko Fujinaka
Intellectual 2575 points
Part Number: CC3135

Hello expert, 

I know CC3x35/3x30 has the automatic antenna selection mode but  not have the manual mode.

In this case, how and when the host processor on CC3x35/3x30 can change the antenna 1/2?

Does the host MPU change the antenna 1/2 by using sl_WlanSet API anytime?

Regards, A.Fujinaka

  • 0
    TI__Mastermind 40965 points

    Hi Fujinaka-san,

    With automatic mode, the host processor is not involved in antenna selection. The antenna is chosen by the NWP during connection to the Wi-Fi access point, and will remain selected and active for the duration of the connection.

    If the host processor wishes to control which antenna is chosen, it will need to perform its own scan to determine the best antenna to use, and use the Antenna1 or Antenna2 mode as appropriate.

    Please take a look at section 4.8 of the NWP user's guide for more information: http://www.ti.com/lit/swru455

    Let me know if you need more clarification or have further questions on the antenna diversity mechanism of the CC3135.

    Regards,

    Michael