int main(void)
{
//set outputs
DDRB=0xff; //all out for now
PORTB=0b000; //all output low
//make sure heater is OFF and the slot is not held down
heater(0);
//set inputs
DDRA=0x00; //all in
PORTA=0b011; //no pull-up for the trimmer
//setup interupt for counting time
TCCR1A=(1<<WGM12); //clear counter on compare match
TCCR1B=(1<<CS11)|(1<CS10); //1MHZ/64=15.625kHz
OCR1A=15625; //compare match at 1Hz
TIMSK1=(1<<OCIE1A); //interupt on compare match a
//setup adc for trimmer
ADMUX=(1<<MUX1); //set PA2 for adc
ADCSRB=(1<<ADLAR); //set for reading of highest bits
ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADATE); //start free run mode
//setup SPI slave
DDRA|=(1<<5);
USICR = (1<<USIWM0)|(1<<USICS1)|(1<<USIOIE);
USISR = (1<<USICNT0);
sei();//enable interrupt
//end of setup
while(1) //be stuck forever.
{
if(!slot()) //hold the toast down
{
time=trimmer(); //set timer according to knob
heater(1);
debug(1);
hold(1);
while(button()); //wait for user input
heater(0);
hold(0);
debug(0);
while(!button()); //wait untill button is released
}
}
}
int main()
{
Heater heater(10);
heater.checkMax();
heater.setTemp(90);
heater.checkMax();
heater.setTemp(110);
heater.checkMax();
return 1;
}
