ble trurn off and on without reset the whole environment

[ys parmar]

My application uses a NRF52840 (SD140, SDK 15.2.), very simple circuit and needs to be extremely low current consumption. I measured the current in conditions of BLE on and BLE off. To turn on BLE, I use the following code:

ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
advertising_start(erase_bonds);

My intention is: to turn on BLE when give some condition  and turn it off when transmission is finished and again on ble . My question is: how do I turn off and then turn on BLE dynamically, without reset the whole environment. I guess turning on seems easy, using the code above. But turning off and remaining CPU running? How do I do that? can we use this  api for off

nrf_sdh_disable_request();
sd_softdevice_disable();

and on

sd_softdevice_enable();

[Simonr]

Hi

I would suggest checking out the Power Profiling application which is designed to be used to measure the current consumption of your nRF52 during advertisement, data transmission, and in low power modes.

It should not be necessary to disable the SoftDevice to get a low current consumption as you can see from the example.

Best regards,

Simon

[ys parmar]

hii simonr,

my issue is when we read data from fifo some packets that store buffer  its took 20 sec  its took some time that time i want to  ble off  20sec and when i want to send that time i want to on ble and send data .so can u suggest me how can i ble off and on without effected our functionalty 

[Simonr]

Hi

You can stop advertising by calling the sd_ble_gap_adv_stop() function for example. You should not disable the SoftDevice altogether, as it's handles a lot more than just the radio.

Best regards,

Simon

[ys parmar]

its working thanks Simonr

[awneil]