CONFIG_BT_CTLR_XTAL_THRESHOLD

Configure the optimal delta in micro seconds between two consecutive radio events below which (active clock) crystal will be retained. This value is board dependent. The value 5168 is based on crude calculation for nRF51 current versus startup time of high frequency crystal.

Symbol:

BT_CTLR_XTAL_THRESHOLD

Type:

int

Value:

“”

User value:

(no user value)

Visibility:

“n”

Is choice item:

false

Is defined:

true

Is from env.:

false

Is special:

false

Prompts:

• “Crystal shutdown threshold in uS” if BT_CTLR_ADVANCED_FEATURES && BT_CTLR_XTAL_ADVANCED (value: “n”)

Default values:

• 5168 (value: “n”)
• Condition: BT_CTLR_XTAL_ADVANCED (value: “n”)

Selects:

(no selects)

Reverse (select-related) dependencies:  

(no reverse dependencies)

Additional dependencies from enclosing menus and ifs:  

BT_HCI && BT && BT_CTLR (value: “n”)

Locations:

• ../subsys/bluetooth/controller/Kconfig:308