84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
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/** @addtogroup clock_file CLOCK peripheral API
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*
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* @brief <b>Access functions for the Clock Controller</b>
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*
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* @ingroup peripheral_apis
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* LGPL License Terms @ref lgpl_license
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* @author @htmlonly © @endhtmlonly 2016 Maxim Sloyko <maxims@google.com>
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* @author @htmlonly © @endhtmlonly 2021 Eduard Drusa <ventyl86 at netkosice dot sk>
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*
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2017-2018 Unicore MX project<dev(at)lists(dot)unicore-mx(dot)org>
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* Copyright (C) 2021 Eduard Drusa <ventyl86(at)netkosice(dot)sk>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/nrf/clock.h>
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#include <libopencm3/nrf/periph.h>
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/**@{*/
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/** @brief Start Low Frequency Clock
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*
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* @param[in] wait bool: If true, will busy wait for the clock to start.
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*/
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void clock_start_lfclk(bool wait)
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{
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PERIPH_TRIGGER_TASK(CLOCK_TASK_LFCLKSTART);
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if (wait) {
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while (!(CLOCK_LFCLKSTAT & CLOCK_LFCLKSTAT_STATE));
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}
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}
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/** @brief Stop Low Frequency Clock */
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void clock_stop_lfclk()
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{
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PERIPH_TRIGGER_TASK(CLOCK_TASK_LFCLKSTOP);
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}
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/** @brief Start High Frequency Crystal Oscillator.
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*
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* @details Oscillator needs to be running for the radio to work.
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*
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* @param[in] wait bool If true, will busy wait for the clock to start.
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*/
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void clock_start_hfclk(bool wait)
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{
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PERIPH_TRIGGER_TASK(CLOCK_TASK_HFCLKSTART);
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if (wait) {
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while (!(CLOCK_HFCLKSTAT & CLOCK_HFCLKSTAT_STATE));
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}
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}
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/** @brief Stop High Frequency Crystal Oscillator */
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void clock_stop_hfclk()
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{
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PERIPH_TRIGGER_TASK(CLOCK_TASK_HFCLKSTOP);
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}
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/** @brief Low Frequency Clock Source.
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*
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* @param[in] lfclk_src enum clock_lfclk_src
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*/
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void clock_set_lfclk_src(enum clock_lfclk_src lfclk_src)
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{
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CLOCK_LFCLKSRC = lfclk_src;
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}
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/**@}*/
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