2 Replies Latest reply on Dec 15, 2016 9:12 AM by MichaelF_56

    The sleep current of CYW20719.

    frank.chang_1838401

      Hi Sir,

          I only find one example for CYW20729 hidoff mode.

          The lowest sleep current is 0.7mA(3.3V) more than I expected.

          Can you please advise how to improve? Thanks.

       

       

      Snip Example

      mybeacon

      EVB

      CYW9207x9WCDEVAL

      SDK

      WICED 4.0.10.14

      Working set

      BCM20719

       

      Switch Setting table:

      SW14

      1 - ON

      2 - OFF

      VDDIO 3.3V

      SW4

      1,2,3,4 - OFF

      HCI UART OFF

      SW3

      1,2,3,4 - OFF

      PUART OFF

      SW10

      1 - OFF

      2 - OFF

      Disable FTID level shift VDD.

      SW13

      1,2,3,4 - OFF

      Disconnect AUTH IC

      SW6

      1 - OFF

      2 - ON

      P1 connect to SW5

      SW9

      1 - OFF

      2 - OFF

      Disable LED jumper.

      SW12

      1 - ON

      2 - OFF

      Reset Button.

       

      Test result: (probe the current consumed at VDDBAT – J1)

      Advertising duration: 3.3ms

      Peak current: 8.8009mA.

      Average current: 4.1341mA

      未命名.png

       

       

      Hidoff duration: 64ms

      Peak current: 0.7548mA.

      Average current: 0.7091mA

       

      CFG setting.

       

      C_FLAGS += -DWICED_BT_TRACE_ENABLE

      C_FLAGS += -DWICED_ENABLE_SLEEP_MODE

       

       

      PUART log.

       

      mybeacon_application_start

      wiced_sleep_register_callback result:1

      mybeacon_management_cback evt: 21

      mybeacon_management_cback evt: 0

      wiced_sleep_configure : 0

      mybeacon_management_cback evt: 23

      wiced_bt_start_advertisements 0

      app init: started timer to switch to sleep mode

      timeout, allowing sleep now

      mybeacon_management_cback evt: 23