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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
#include "stm32_unict_lib.h"
#include <stdio.h>
#include <string.h>
#define OPEN_T 20
#define CLOSE_T 8
typedef enum {
CLOSED,
OPENING,
OPENED,
CLOSING
} status_t;
status_t status = CLOSED;
/*
* X = PB10
* Y = PB4
* Z = PB5
* output:
* red = PB0
*/
char str[5] = "----\0";
int ms_to_open = OPEN_T; /* 500ms x 10s */
int ms_to_close = CLOSE_T; /* 500ms x 4s */
int level = 4;
void
print_dash(int n, int opt)
{
int i;
if (opt && level < n)
return;
else if (!opt && level > n)
return;
memset(str, ' ', 5);
for (i = 0; i < n; ++i)
*(str + i) = '-';
for (; i < 5; ++i)
*(str + i) = ' ';
level = n;
}
int
main()
{
GPIO_init(GPIOB);
GPIO_init(GPIOC);
GPIO_config_input(GPIOB, 10); /* X, change status to OPENING */
GPIO_config_input(GPIOB, 4); /* Y */
GPIO_config_input(GPIOB, 5); /* Z */
GPIO_config_output(GPIOB, 0); /* led */
DISPLAY_init();
GPIO_config_EXTI(GPIOB, EXTI10);
EXTI_enable(EXTI10, FALLING_EDGE);
GPIO_config_EXTI(GPIOB, EXTI4);
EXTI_enable(EXTI4, FALLING_EDGE);
GPIO_config_EXTI(GPIOB, EXTI5);
EXTI_enable(EXTI5, FALLING_EDGE);
/* Timer for red LED */
TIM_init(TIM2);
TIM_set(TIM2, 0);
TIM_on(TIM2);
TIM_enable_irq(TIM2, IRQ_UPDATE);
TIM_config_timebase(TIM2, 8400, 5000);
for (;;) {
DISPLAY_puts(0, str);
}
return 0;
}
void
EXTI9_5_IRQHandler(void)
{
if (EXTI_isset(EXTI5)) {
int mul;
if (status == OPENED) {
switch (level) {
case 1:
mul = 25;
break;
case 2:
mul = 50;
break;
default:
mul = 70;
}
ms_to_close = CLOSE_T - (CLOSE_T * mul / 100);
} else if (status == CLOSING) {
switch (level) {
case 1:
mul = 25;
break;
case 2:
mul = 50;
break;
default:
mul = 70;
}
ms_to_open = OPEN_T - (OPEN_T * mul / 100);
status = OPENING;
}
EXTI_clear(EXTI5);
}
}
void
EXTI15_10_IRQHandler(void)
{
if (EXTI_isset(EXTI10)) {
status = OPENING;
int mul;
switch (level) {
case 1:
mul = 70;
break;
case 2:
mul = 50;
break;
default:
mul = 25;
}
ms_to_open = OPEN_T - (OPEN_T * mul / 100);
EXTI_clear(EXTI10);
}
}
void
EXTI4_IRQHandler(void)
{
if (EXTI_isset(EXTI4)) {
if (status == OPENED) {
status = CLOSING;
ms_to_close = OPEN_T;
} else if (status == OPENING) {
status = CLOSING;
ms_to_close = OPEN_T - ms_to_close;
}
EXTI_clear(EXTI4);
}
}
void
TIM2_IRQHandler(void)
{
if (status == OPENING) {
GPIO_toggle(GPIOB, 0);
ms_to_open--;
if (ms_to_open <= OPEN_T - (OPEN_T * 70 / 100)) {
print_dash(1, 1);
} else if (ms_to_open <= OPEN_T - (OPEN_T * 50 / 100)) {
print_dash(2, 1);
} else if (ms_to_open <= OPEN_T - (OPEN_T * 25 / 100)) {
print_dash(3, 1);
}
if (ms_to_open == 0) {
status = OPENED;
print_dash(0, 1);
GPIO_write(GPIOB, 0, 0);
ms_to_open = OPEN_T; /* Reset timer of 10s */
}
} else if (status == OPENED) {
ms_to_close--;
if (ms_to_close == 0) {
status = CLOSING;
ms_to_close = OPEN_T; /* During the closing, ms_to_close has the same value of OPENING time */
}
} else if (status == CLOSING) {
GPIO_toggle(GPIOB, 0);
ms_to_close--;
if (ms_to_close <= OPEN_T - (OPEN_T * 70 / 100)) {
print_dash(3, 0);
} else if (ms_to_close <= OPEN_T - (OPEN_T * 50 / 100)) {
print_dash(2, 0);
} else if (ms_to_close <= OPEN_T - (OPEN_T * 25 / 100)) {
print_dash(1, 0);
}
if (ms_to_close == 0) {
status = CLOSED;
print_dash(4, 0);
GPIO_write(GPIOB, 0, 0);
ms_to_close = CLOSE_T;
}
}
TIM_update_clear(TIM2);
}
|
