CONFIG_SERIAL=n
CONFIG_UART_CONSOLE=n
CONFIG_LOG=n

# Using the external crystal for more precise timing (+/-10 PPM)
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_20PPM=y

# Using the internal oscillator (500 PPM)
# CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
# CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n