blob: aa5c288c26b2701b3e39c62e95d3f2b69a9b1317 (
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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
#include "arch.h"
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <util/delay.h>
void Arch::setup(void)
{
wdt_disable();
#if F_CPU == 8000000UL
/* default */
#elif F_CPU == 4000000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS0);
#elif F_CPU == 2000000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS1);
#elif F_CPU == 1000000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS1) | _BV(CLKPS0);
#elif F_CPU == 500000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS2);
#elif F_CPU == 250000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS2) | _BV(CLKPS0);
#elif F_CPU == 125000UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS2) | _BV(CLKPS1);
#elif F_CPU == 62500UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS2) | _BV(CLKPS1) | _BV(CLKPS0);
#elif F_CPU == 32150UL
CLKPR = _BV(CLKPCE);
CLKPR = _BV(CLKPS3);
#else
#error Unsupported F_CPU
#endif
#if defined(CONFIG_loop) || defined(TIMER_S)
TCCR1A = 0;
TCCR1B = _BV(WGM12) | _BV(CS12) | _BV(CS10); // CTC, /1024
OCR1A = F_CPU / 1024;
TIMSK1 = _BV(OCIE1A);
#endif
sei();
}
#ifdef CONFIG_wakeup
void wakeup();
#endif
#if defined(CONFIG_loop) || defined(TIMER_S)
#include "driver/uptime.h"
#endif
#if defined(CONFIG_loop)
extern void loop();
volatile char run_loop = 0;
#endif
void Arch::idle_loop(void)
{
while (1) {
SMCR = _BV(SE);
asm("sleep");
SMCR = 0;
asm("wdr");
#ifdef CONFIG_loop
if (run_loop) {
loop();
run_loop = 0;
}
#endif
#ifdef CONFIG_wakeup
wakeup();
#endif
}
}
void Arch::idle(void)
{
SMCR = _BV(SE);
asm("sleep");
SMCR = 0;
asm("wdr");
}
void Arch::delay_us(unsigned int const us)
{
for (unsigned int i = 0; i < us; i++) {
_delay_us(1);
}
}
void Arch::delay_ms(unsigned int const ms)
{
for (unsigned int i = 0; i < ms; i++) {
_delay_ms(1);
}
}
Arch arch;
#if defined(CONFIG_loop) || defined(TIMER_S)
#ifndef __acweaving
ISR(TIMER1_COMPA_vect)
{
#ifdef CONFIG_loop
run_loop = 1;
#endif
#ifdef TIMER_S
uptime.tick_s();
#endif
}
#endif
#endif
|
