How to use the internal 32.768k crystal oscillator for nrf5340

Question

How to use the internal 32.768k crystal oscillator for nrf5340？ 
 NCS: V1.5.0 
 example: ncs1.5.0\v1.5.0
rf\samples\peripheraladio_test 
 
 Only HF no LF config.

Август · Accepted Answer

Hi, 
 Thank you. I have solved the problem. 
 1. v1.5.0
rf\samples\bluetooth\peripheral_uart\prj.conf 
 
 CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC =y 
 CONFIG_BT_SMP =y 
 CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM =y 
 
 2. v1.5.0\zephyr\samples\bluetooth\hci_rpmsg\prj.conf

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC =y 
 CONFIG_BT_SMP =y 
 CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM =y

How to use the internal 32.768k crystal oscillator for nrf5340

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