blob: 816fc93337f247f3eb628f3766c359aca80ec30c (
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
|
/*
* Copyright 2020 Birte Kristina Friesel
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef COUNTER_H
#define COUNTER_H
#include <msp430.h>
#include <stdint.h>
typedef uint16_t counter_value_t;
typedef uint16_t counter_overflow_t;
class Counter {
private:
Counter(const Counter ©);
public:
uint16_t value;
volatile uint16_t overflow;
Counter() : overflow(0) {}
inline void start() {
overflow = 0;
TA2CTL = TASSEL__SMCLK | ID__1 | MC__CONTINUOUS;
TA2EX0 = 0;
TA2CTL |= TACLR;
asm volatile("nop");
TA2CTL |= TAIE;
asm volatile("nop");
__eint();
asm volatile("nop");
}
inline void stop() {
TA2CTL = 0;
value = TA2R;
__dint();
}
};
extern Counter counter;
#endif
|
