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/*
* fsm-main.c: main() function for SpaghettiMonster.
*
* Copyright (C) 2017 Selene ToyKeeper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FSM_MAIN_C
#define FSM_MAIN_C
#include "fsm-main.h"
#if PWM_CHANNELS == 4
// 4th PWM channel requires manually turning the pin on/off via interrupt :(
ISR(TIMER1_OVF_vect) {
//bitClear(PORTB, 3);
PORTB &= 0b11110111;
//PORTB |= 0b00001000;
}
ISR(TIMER1_COMPA_vect) {
//if (!bitRead(TIFR,TOV1)) bitSet(PORTB, 3);
if (! (TIFR & (1<<TOV1))) PORTB |= 0b00001000;
//if (! (TIFR & (1<<TOV1))) PORTB &= 0b11110111;
}
#endif
int main() {
// Don't allow interrupts while booting
cli();
#ifdef HALFSPEED
// run at half speed
CLKPR = 1<<CLKPCE;
CLKPR = 1;
#endif
// configure PWM channels
#if PWM_CHANNELS >= 1
DDRB |= (1 << PWM1_PIN);
TCCR0B = 0x01; // pre-scaler for timer (1 => 1, 2 => 8, 3 => 64...)
TCCR0A = PHASE;
#endif
#if PWM_CHANNELS >= 2
DDRB |= (1 << PWM2_PIN);
#endif
#if PWM_CHANNELS >= 3
// Second PWM counter is ... weird
DDRB |= (1 << PWM3_PIN);
TCCR1 = _BV (CS10);
GTCCR = _BV (COM1B1) | _BV (PWM1B);
OCR1C = 255; // Set ceiling value to maximum
#endif
#if PWM_CHANNELS >= 4
// 4th PWM channel is ... not actually supported in hardware :(
DDRB |= (1 << PWM4_PIN);
//OCR1C = 255; // Set ceiling value to maximum
TCCR1 = 1<<CTC1 | 1<<PWM1A | 3<<COM1A0 | 2<<CS10;
GTCCR = (2<<COM1B0) | (1<<PWM1B);
// set up an interrupt to control PWM4 pin
TIMSK |= (1<<OCIE1A) | (1<<TOIE1);
#endif
// configure e-switch
PORTB = (1 << SWITCH_PIN); // e-switch is the only input
PCMSK = (1 << SWITCH_PIN); // pin change interrupt uses this pin
#ifdef USE_DEBUG_BLINK
//debug_blink(1);
#endif
// all booted -- turn interrupts back on
PCINT_on();
WDT_on();
ADC_on();
sei();
// in case any spurious button presses were detected at boot
#ifdef USE_DELAY_MS
delay_ms(1);
#else
delay_4ms(1);
#endif
empty_event_sequence();
// fallback for handling a few things
#ifndef DONT_USE_DEFAULT_STATE
push_state(default_state, 0);
#endif
// call recipe's setup
setup();
// main loop
while (1) {
// if event queue not empty, empty it
process_emissions();
// enter standby mode if requested
// (works better if deferred like this)
if (go_to_standby) {
#ifdef USE_RAMPING
set_level(0);
#else
#if PWM_CHANNELS >= 1
PWM1_LVL = 0;
#endif
#if PWM_CHANNELS >= 2
PWM2_LVL = 0;
#endif
#if PWM_CHANNELS >= 3
PWM3_LVL = 0;
#endif
#if PWM_CHANNELS >= 4
PWM4_LVL = 255; // inverted :(
#endif
#endif
standby_mode();
}
// give the recipe some time slices
loop();
// in case we fell through, turn delays back on
nice_delay_interrupt = 0;
}
}
#endif
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