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RoDe_1773541
Level 4
Level 4
25 replies posted 10 replies posted 5 replies posted

The new SDK 3.7.0-3 that was just released states that "Support for Bluetooth Low Power Mode on 4343x platforms" was added.  Does anyone know how to activate low power mode?

Thanks,

-Rob

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1 Solution
VikramR_26
Employee
Employee
25 sign-ins 10 sign-ins 10 comments on KBA

Rob there is no API call, if you are not performing any activity with BLE the system auto enters into low power.

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7 Replies
VikramR_26
Employee
Employee
25 sign-ins 10 sign-ins 10 comments on KBA

Rob there is no API call, if you are not performing any activity with BLE the system auto enters into low power.

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So, as long as the device is advertising the chip will be in normal power mode?

Thanks,

-Rob

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Yes you are right.

Anonymous
Not applicable

Hi vik86

   I do a test for BLE low power on SDK3.7.0-3. But no significant reduction, still higher than 10mA.

    Can you provide any examples for BLE low powersave?

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Are you performing any advertisements or any activity with BLE ? Also where are you measuring power ?

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Anonymous
Not applicable

Hi vik86

I run example "ble_proximity_reporter". In function "application_start()", called "wiced_enable_powersave()".

I use USI-BM22.

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I've been told that the Bluetooth system won't enter low power mode if the device is advertising or connected.  But, even then I wasn't able to make the device draw less than 9mA after enabling the bluetooth stack (wiced_bt_stack_init).  I have to call wiced_bt_stack_deinit and then put this code in the bluetooth management callback

switch( event ) 
{     
     /* Bluetooth  stack enabled */     
     case BTM_ENABLED_EVT:          
          application_init();          
          break;     
     case BTM_DISABLED_EVT:          
          platform_gpio_output_low ( wiced_bt_control_pins[WICED_BT_PIN_POWER] );             
          break;
}

-Rob

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