Query regarding low frequency usage in Nrf52382

[Sreelakshmi]

Hello,

 

I am using Nrf52382. From the manual I see that it supports low frequency of 32Khz.

When I enable low frequency, which module will use this low frequency. Nrf or Peripherals also??

When can I use low frequency and when it is prohibited.

What advantages I can get by using low frequency mode over system off mode.

[Kenneth]

Hello,

You can start and stop the low frequency clock as you desire. Typically you will start the low frequency clock if you want a low power timer to wakeup the chip or run a specific task as specific interval. For instance if you are creating an BLE application then the BLE stack(softdevice) will automatically start and use the LFCLK to ensure that the communicate with the peer at the connection interval, additional timers may be added to for instance poll sensors at given intervals for new data to send over BLE.

Best regards,
Kenneth