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| 1199 | - | 1 | /**************************************************************************** |
| 1437 | - | 2 | * Copyright (C) 2011-2012 by Claas Anders "CaScAdE" Rathje * |
| 1199 | - | 3 | * admiralcascade@gmail.com * |
| 4 | * Project-URL: http://www.mylifesucks.de/oss/c-epilepsy/ * |
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| 5 | * * |
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| 6 | * This program is free software; you can redistribute it and/or modify * |
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| 7 | * it under the terms of the GNU General Public License as published by * |
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| 8 | * the Free Software Foundation; either version 2 of the License. * |
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| 9 | * * |
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| 10 | * This program is distributed in the hope that it will be useful, * |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 13 | * GNU General Public License for more details. * |
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| 14 | * * |
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| 15 | * You should have received a copy of the GNU General Public License * |
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| 16 | * along with this program; if not, write to the * |
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| 17 | * Free Software Foundation, Inc., * |
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| 18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 19 | ****************************************************************************/ |
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| 20 | |||
| 21 | #include "timer0.h" |
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| 22 | |||
| 23 | // 8 bit timer |
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| 24 | // unccritical stuff |
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| 25 | // periodic critical stuff should go to the blocking timer1 |
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| 26 | |||
| 27 | volatile uint16_t uptime = 0; |
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| 28 | |||
| 29 | void timer0_init() { |
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| 30 | TCCR0B |= ((1 << CS02) | (1 << CS00)); // Prescale 1024 |
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| 31 | |||
| 32 | TIMSK0 |= (1 << TOIE0); // overflow enable |
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| 33 | } |
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| 34 | |||
| 35 | // every ~ 10ms = 10000us (9984us) |
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| 36 | uint8_t timer0_scale_helper = 0; |
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| 37 | |||
| 38 | ISR(TIMER0_OVF_vect, ISR_NOBLOCK) { |
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| 39 | TCNT0 = 61; |
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| 40 | |||
| 41 | player_timer_callback(); |
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| 42 | |||
| 43 | static uint16_t ticks = 0; |
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| 44 | ticks++; |
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| 45 | |||
| 46 | // ~1s |
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| 47 | if (timer0_scale_helper++ >= 100) { |
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| 48 | timer0_scale_helper = 0; |
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| 49 | nc_handler_timer_callback(); |
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| 50 | eeprom_timer_callback(); |
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| 51 | uptime++; |
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| 52 | //LEDRED_TOGGLE |
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| 53 | } |
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| 54 | |||
| 55 | } |