gadget-kspconsole/unicore-mx/lib/nrf/common/clock.c
Daniele Lacamera b8a7ffcd31 Initial import
2023-11-27 15:16:45 +01:00

76 lines
2.1 KiB
C

/** @addtogroup clock_defines
*
* @brief <b>Access functions for the NRF51 Clock Controller </b>
* @ingroup NRF51_defines
* LGPL License Terms @ref lgpl_license
* @author @htmlonly &copy; @endhtmlonly 2016
* Maxim Sloyko <maxims@google.com>
*
*/
/*
* This file is part of the unicore-mx project.
*
* 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/>.
*/
#include <unicore-mx/nrf/clock.h>
#include <unicore-mx/nrf/periph.h>
/** @brief Start Low Frequency Clock
*
* @param[in] wait bool: If true, will busy wait for the clock to start.
*/
void clock_start_lfclk(bool wait)
{
periph_trigger_task(CLOCK_TASK_LFCLKSTART);
if (wait) {
while(!(CLOCK_LFCLKSTAT & CLOCK_LFCLKSTAT_STATE));
}
}
/** @brief Stop Low Frequency Clock */
void clock_stop_lfclk()
{
periph_trigger_task(CLOCK_TASK_LFCLKSTOP);
}
/** @brief Start High Frequency Crystal Oscillator.
*
* @details Oscillator needs to be running for the radio to work.
*
* @param[in] wait bool If true, will busy wait for the clock to start.
*/
void clock_start_hfclk(bool wait)
{
periph_trigger_task(CLOCK_TASK_HFCLKSTART);
if (wait) {
while(!(CLOCK_HFCLKSTAT & CLOCK_HFCLKSTAT_STATE));
}
}
/** @brief Stop High Frequency Crystal Oscillator */
void clock_stop_hfclk()
{
periph_trigger_task(CLOCK_TASK_HFCLKSTOP);
}
/** @brief Low Frequency Clock Source.
*
* @param[in] lfclk_src enum clock_lfclk_src
*/
void clock_set_lfclk_src(enum clock_lfclk_src lfclk_src)
{
CLOCK_LFCLKSRC = lfclk_src;
}