69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
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/** @addtogroup timer_file TIMER peripheral API
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* @ingroup peripheral_apis
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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) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
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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/efm32/timer.h>
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/**@{*/
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#define HAS_DEAD_TIME_INSERTION(timer) (timer == TIMER0)
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/**
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* Start timer
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* @param[in] timer Timer (use TIMERx)
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*/
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void timer_start(uint32_t timer)
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{
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TIMER_CMD(timer) = TIMER_CMD_START;
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}
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/**
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* Stop timer
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* @param[in] timer Timer (use TIMERx)
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*/
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void timer_stop(uint32_t timer)
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{
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TIMER_CMD(timer) = TIMER_CMD_STOP;
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}
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/** Clock division factor
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* @param[in] timer Timer (use TIMERx)
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* @param[in] presc Factor (use TIMER_CTRL_PRESC_DIV*)
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* @note output-clock = input-clock / @a presc
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*/
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void timer_set_clock_prescaler(uint32_t timer, uint32_t presc)
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{
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TIMER_CTRL(timer) = (TIMER_CTRL(timer) & ~TIMER_CTRL_PRESC_MASK)
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| TIMER_CTRL_PRESC(presc);
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}
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/**
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* Start timer top value
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* the timer reload after it reaches top value
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* @param[in] timer Timer (use TIMERx)
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* @param[in] top Top value
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*/
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void timer_set_top(uint32_t timer, uint32_t top)
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{
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TIMER_TOP(timer) = top;
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}
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/**@}*/
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