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CC3220SF-LAUNCHXL: CC32XX scanning fixed SSID

RAJENDRA PANT
Prodigy 110 points
Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: CC3220SF, CC3200

Hi,

I am using CC3220SF with simplelink SDK_1_40. In my application the simplelink enabled device has to work in station mode and have to be connected with on of the two fixed CC3220SF based AP SSIDs named Primary-XXX and Secondary-XXX.

I have to keep perform network scan in connected mode when I am connected via Secondary-XXX SSID and when Primary SSID is available then I need to switch the connection via Primary.

Here the issue is when I start scanning, I get lots of other SSID in the list but my required SSID is not due to strong signal or other parameters . Do you have any API which can just check the status of given SSID or listed SSID only.

Regards

  • 0
    TI__Expert 8255 points

    Hi Rajendra,

    I do not believe this selective scan is supported directly by the API.

    Also, not sure if you are already taking advantage or if it is just a very signal crowded space, but please note the API supports up to 20 30 results with call to sl_WlanGetNetworkList.

  • 0 in reply to Austin Tanner
    Guru 39650 points
    Hi,

    Only a quick comment. Austin have right. There is no API for requested purpose.

    Network scan command can return 30 results not only 20. Limitation to 20 entries was at 1 generation (CC3200). But it is possible do your own scan in transceiver mode. In this case will be required disconnect from currently connected network.

    In real application if you not see your network between 30 scan results, is is very likely that network signal is very weak and you will not be able connect.

    Jan
  • 0 in reply to Hnz
    TI__Expert 8255 points
    Hi Jan,

    Thanks for your help and for always keeping us on our toes! Appreciate the correction above!