blob: 22664954d231320a0a79c116ba36a9f7c93c4ea1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
*
* 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 <libopencm3/efm32/timer.h>
#define HAS_DEAD_TIME_INSERTION(timer) (timer == TIMER0)
/**
* Start timer
* @param[in] timer Timer (use TIMERx)
*/
void timer_start(uint32_t timer)
{
TIMER_CMD(timer) = TIMER_CMD_START;
}
/**
* Stop timer
* @param[in] timer Timer (use TIMERx)
*/
void timer_stop(uint32_t timer)
{
TIMER_CMD(timer) = TIMER_CMD_STOP;
}
/** Clock division factor
* @param[in] timer Timer (use TIMERx)
* @param[in] presc Factor (use TIMER_CTRL_PRESC_DIV*)
* @note output-clock = input-clock / @a presc
*/
void timer_set_clock_prescaler(uint32_t timer, uint32_t presc)
{
TIMER_CTRL(timer) = (TIMER_CTRL(timer) & ~TIMER_CTRL_PRESC_MASK)
| TIMER_CTRL_PRESC(presc);
}
/**
* Start timer top value
* the timer reload after it reaches top value
* @param[in] timer Timer (use TIMERx)
* @param[in] top Top value
*/
void timer_set_top(uint32_t timer, uint32_t top)
{
TIMER_TOP(timer) = top;
}
|
