pentabug/fw_test/main.c
2013-08-15 04:15:23 +02:00

105 lines
1.8 KiB
C

#include <inttypes.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#define __DELAY_BACKWARD_COMPATIBLE__
#include <util/delay.h>
#include <stdlib.h>
#define ever (;;)
#define follow(from_port, from_pin, to_port, to_pin) { if(from_port & (1 << from_pin)) to_port &= ~(1 << to_pin); else to_port |= 1 << to_pin; }
#define not_follow(from_port, from_pin, to_port, to_pin) { if(from_port & (1 << from_pin)) to_port |= 1 << to_pin; else to_port &= ~(1 << to_pin); }
ISR(TIMER0_COMPA_vect) {
TCNT0 = 0;
PORTD ^= 1 << 2;
}
int main(void) {
uint8_t vib_delay = 0;
// init and stuff
PORTB |= (1 << 6) | (1 << 7);
PORTC |= (1 << 0) | (1 << 2) | (1 << 3);
DDRB |= (1 << 6) | (1 << 7);
DDRC |= (1 << 0) | (1 << 2) | (1 << 3);
DDRD |= (1 << 2) | (1 << 4);
// pullups
PORTB |= (1 << 0) | (1 << 1) | (1 << 2);
PORTC |= (1 << 4) | (1 << 5);
PORTD |= (1 << 5) | (1 << 6) | (1 << 7);
/*PORTD |= 1 << 2;*/
// we need to get real fast ...
CLKPR = 0b10000000 ;
CLKPR = 0b00000000 ; //4MHz Clock
// initialize timer
TIMSK0 |= (1 << OCIE0A);
// this should be a 105 or something ... measure multiple bugs with a real measurement device
OCR0A = 85;
// no prescaler
sei();
// looping
for ever {
// LED by button
not_follow(PIND, 5, PORTD, 4);
// LED by IR
not_follow(PIND, 3, PORTC, 2);
// vibration
follow(PINC, 4, PORTB, 6);
// higher buzzer
if(!(PINC & (1 << 5))) {
PORTB ^= 1 << 7;
} else {
PORTB &= ~(1 << 7);
}
// lower buzzer
vib_delay ^= 1;
if(!(PIND & (1 << 7))) {
if(vib_delay) {
PORTC ^= 1 << 0;
}
} else {
PORTC &= ~(1 << 0);
}
// send IR
if(!(PIND & (1 << 6))) {
TCCR0B = (1 << CS00);
} else {
TCCR0B = 0;
PORTD &= ~(1 << 2);
}
// wait
_delay_ms(1);
}
/* never return 0; */
return 0;
}