51/clock.h

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/** @defgroup clock_defines CLOCK Defines
 *
 * @brief <b>Defined Constants and Types for the NRF51xx Clock control</b>
 *
 * @ingroup NRF51xx_defines
 *
 * @version 1.0.0
 *
 * @date Nov 2021
 *
 *LGPL License Terms @ref lgpl_license
 */
/*
 * This file is part of the libopencm3 project.
 *
 * Copyright (C) 2017-2018 Unicore MX project<dev(at)lists(dot)unicore-mx(dot)org>
 * Copyright (C) 2021 Eduard Drusa <ventyl86(at)netkosice(dot)sk>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <stdbool.h>
 
#include <libopencm3/cm3/common.h>
#include <libopencm3/nrf/memorymap.h>
#include <libopencm3/nrf/common/clock.h>
 
/* Clock registers */
#define CLOCK_XTALFREQ          MMIO32(CLOCK_BASE + 0x550)
 
#define CLOCK_PCLK              16000000
 
enum clock_xtal_freq {
        CLOCK_XTAL_FREQ_32MHZ,
        CLOCK_XTAL_FREQ_16MHZ = 0xff,
};
 
BEGIN_DECLS
 
void clock_set_xtal_freq(enum clock_xtal_freq freq);
 
END_DECLS