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1 | /**************************************************************************** |
1 | /**************************************************************************** |
2 | * Copyright (C) 2011 by Claas Anders "CaScAdE" Rathje * |
2 | * Copyright (C) 2011-2012 by Claas Anders "CaScAdE" Rathje * |
3 | * admiralcascade@gmail.com * |
3 | * admiralcascade@gmail.com * |
4 | * Project-URL: http://www.mylifesucks.de/oss/c-epilepsy/ * |
4 | * Project-URL: http://www.mylifesucks.de/oss/c-epilepsy/ * |
5 | * * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License. * |
8 | * the Free Software Foundation; either version 2 of the License. * |
9 | * * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
13 | * GNU General Public License for more details. * |
14 | * * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
17 | * Free Software Foundation, Inc., * |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
19 | ****************************************************************************/ |
19 | ****************************************************************************/ |
20 | 20 | ||
21 | #include "timer0.h" |
21 | #include "timer0.h" |
22 | 22 | ||
23 | // 8 bit timer |
23 | // 8 bit timer |
24 | // unccritical stuff |
24 | // unccritical stuff |
25 | // periodic critical stuff should go to the blocking timer1 |
25 | // periodic critical stuff should go to the blocking timer1 |
26 | 26 | ||
27 | volatile uint16_t uptime = 0; |
27 | volatile uint16_t uptime = 0; |
28 | 28 | ||
29 | void timer0_init() { |
29 | void timer0_init() { |
30 | TCCR0B |= ((1 << CS02) | (1 << CS00)); // Prescale 1024 |
30 | TCCR0B |= ((1 << CS02) | (1 << CS00)); // Prescale 1024 |
31 | 31 | ||
32 | TIMSK0 |= (1 << TOIE0); // overflow enable |
32 | TIMSK0 |= (1 << TOIE0); // overflow enable |
33 | } |
33 | } |
34 | 34 | ||
35 | // every ~ 10ms = 10000us (9984us) |
35 | // every ~ 10ms = 10000us (9984us) |
36 | uint8_t timer0_scale_helper = 0; |
36 | uint8_t timer0_scale_helper = 0; |
37 | 37 | ||
38 | ISR(TIMER0_OVF_vect, ISR_NOBLOCK) { |
38 | ISR(TIMER0_OVF_vect, ISR_NOBLOCK) { |
39 | TCNT0 = 61; |
39 | TCNT0 = 61; |
40 | 40 | ||
41 | player_timer_callback(); |
41 | player_timer_callback(); |
42 | 42 | ||
43 | static uint16_t ticks = 0; |
43 | static uint16_t ticks = 0; |
44 | ticks++; |
44 | ticks++; |
45 | 45 | ||
46 | // ~1s |
46 | // ~1s |
47 | if (timer0_scale_helper++ >= 100) { |
47 | if (timer0_scale_helper++ >= 100) { |
48 | timer0_scale_helper = 0; |
48 | timer0_scale_helper = 0; |
49 | nc_handler_timer_callback(); |
49 | nc_handler_timer_callback(); |
50 | eeprom_timer_callback(); |
50 | eeprom_timer_callback(); |
51 | uptime++; |
51 | uptime++; |
52 | //LEDRED_TOGGLE |
52 | //LEDRED_TOGGLE |
53 | } |
53 | } |
54 | 54 | ||
55 | } |
55 | } |
56 | 56 |