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Original question:

RTOS/CC2640R2F: BLE 5 changing scan parameters in central.

RTOS/CC2640R2F: How to scan for both connectable and non connectable advertisements in BLE 5

Harsha B R Rao
Intellectual 710 points
Part Number: CC2640R2F

Tool/software: TI-RTOS

Hello guys,

I want to scan for both connectable and non connectable advertisements on my central device, and I see in the gap_scanner file and it says these are mutually exclusive events, any work around to be able to scan for both connectable and non connectable advertisements? 

Thank you

Harsha

  • 0
    TI__Guru 57865 points
    Hi Harsha,
    I have assigned one of the experts to answer. Stay tuned
  • 0
    TI__Guru* 78861 points
    Hi Harsha,

    As you say, connectable and non connectable advertisements are mutually exclusive for one scanning duration. So you will have to implement alternations between scanning for the two. E.g.
    1) Set SCAN_PARAM_FLT_PDU_TYPE to connectable advertisements
    2) Start scanning for a fixed period of time (e.g. 500 ms)
    3) Disable scanning
    4) Set SCAN_PARAM_FLT_PDU_TYPE to non-connectable advertisements
    5) Start scanning for a fixed period of time (e.g. 500 ms)
    6) Disable scanning

    ...etc.
  • 0 in reply to Marie H
    Intellectual 710 points
    Hello Marie,

    Thank you for your response, I am looking at gap_scanner file, and the default configurations for the scanning are defined here, although when I am trying to change the parameters like SCAN_PARAM_DFLT_FLT_POLICY, SCAN_PARAM_DFLT_FLT_DISC, i dont see any change in the result, Am I configuring the parameters in the right file? because I dont see any of these configurations in the simpleCentral_init function.

    Any advice on this?

    Cheers,
    Harsha
  • 0 in reply to Harsha B R Rao
    TI__Guru* 78861 points
    Hi Harsha,

    You should use the GapScan_setParam() api to change the parameters at runtime.