43 lines
1.1 KiB
YAML
43 lines
1.1 KiB
YAML
|
# Copyright (c) 2024 Nordic Semiconductor ASA
|
||
|
# SPDX-License-Identifier: Apache-2.0
|
||
|
|
||
|
description: |
|
||
|
Nordic FLL16M
|
||
|
|
||
|
The FLL16M can use the following clocks as clock sources:
|
||
|
|
||
|
- HFXO: The HFXO clock is used as a clock source if the
|
||
|
FLL16M mode is BYPASS, or if the FLL16M mode is
|
||
|
closed-loop and the LFXO clock is not available.
|
||
|
|
||
|
- LFXO: The LFXO clock is used as a clock source if the
|
||
|
FLL16M mode is closed-loop and the LFXO clock is
|
||
|
available.
|
||
|
|
||
|
Devicetree example:
|
||
|
|
||
|
fll16m {
|
||
|
open-loop-accuracy-ppm = <20000>;
|
||
|
closed-loop-base-accuracy-ppm = <5000>;
|
||
|
clocks = <&hfxo>, <&lfxo>;
|
||
|
clock-names = "hfxo", "lfxo";
|
||
|
};
|
||
|
|
||
|
compatible: "nordic,nrf-fll16m"
|
||
|
|
||
|
include: fixed-clock.yaml
|
||
|
|
||
|
properties:
|
||
|
clock-frequency:
|
||
|
const: 16000000
|
||
|
|
||
|
open-loop-accuracy-ppm:
|
||
|
type: int
|
||
|
description: Clock accuracy in parts per million if open-loop clock source is used.
|
||
|
|
||
|
closed-loop-base-accuracy-ppm:
|
||
|
type: int
|
||
|
description: |
|
||
|
Base clock accuracy in parts per million if closed-loop clock source is used.
|
||
|
The actual accuracy is this property plus the accuracy of the HFXO or LFXO.
|