4 Replies Latest reply on Sep 30, 2015 8:52 PM by katc_2152016

    BCM43362 Abnormal Scan Peak Current

      Hi,

       

      I am looking at some abnormal current consumption during wireless scan.

       

      Murata SN8205, SDK V3.1.2, NetX/ThreadX.

       

      The application loop does a wireless scan frequently. Here is the observation -

       

      Scenario 1 -

      while(1)

      {

           wiced_wifi_scan_networks();

           sleep(2000); // 2 seconds

      }

      Max Current(tek00000.png) - 456.2mA

       

      Scenario 2 -

      while(1)

      {

           wiced_wlan_connectivity_deinit();

           wiced_wlan_connectivity_init();

           wiced_wifi_scan_networks();

           sleep(2000); // 2 seconds

      }

      Max Current(tek00001.png) - 305.2mA

       


      Why will the current consumption be lower after restarting the wireless driver?

       

      Regards,

      Karthik

       

      p.s. - current consumption based on voltage drop across a 0.1Ohm current sense resistor.