how to power down "BLE Core" and "Radio Transceiver"

Hi z0806020433,

Switching on and off the BLE core and radio isn't that simple, by writing to the appropriate register and just shut down the radio and the BLE core will affect the behaviour of the system, you can't just turn off the BLE core and turn in back on, there is a series of operations and checks that the SDK performs before the core can fall into sleep, like seting up the next wakeup time etc, put the BLE core into sleep, power off the BLE and radio clocks as soon as the system operates under the LP clock and then shut down power down the Radio subsystem. The SDK along with the ble stack is taking care of shutting down the radio and the BLE core and powering them up when its necessary.

Thanks MT_dialog