Commit fa1f7d30 authored by Jan Kasprzak's avatar Jan Kasprzak
Browse files

buttons.c: button on PB0, status LED on PB1

parent 50ca2660

projects/step-up/buttons.c

+13 −13
Original line number Diff line number Diff line
@@ -16,17 +16,17 @@ static unsigned char prev_state; 
void status_led_on_off(unsigned char mode)

{

	if (mode)

		PORTB |= _BV(PORTB0);

		PORTB |= _BV(PORTB1);

	else

		PORTB &= ~_BV(PORTB0);

		PORTB &= ~_BV(PORTB1);

}



void init_buttons()

{

	DDRB &= ~_BV(DDB1);

	DDRB |= _BV(DDB0);

	PORTB |= _BV(PORTB1); // enable internal pull-up

	PORTB &= ~_BV(PORTB0); // status led off

	DDRB &= ~_BV(DDB0);

	DDRB |= _BV(DDB1);

	PORTB |= _BV(PORTB0); // enable internal pull-up

	PORTB &= ~_BV(PORTB1); // status led off

	GIMSK &= ~_BV(PCIE); // disable pin-change IRQs

	PCMSK = 0; // disable pin-change IRQs on all pins of port B
@@ -36,19 +36,19 @@ void init_buttons() 


void susp_buttons()

{

	DDRB &= ~(_BV(DDB1)); // set as input

	PORTB |= _BV(PORTB1);  // enable internal pull-up

	PORTB &= ~_BV(PORTB0); // set to zero

	DDRB &= ~(_BV(DDB0)); // set as input

	PORTB |= _BV(PORTB0);  // enable internal pull-up

	PORTB &= ~_BV(PORTB1); // set to zero



	GIMSK |= _BV(PCIE);



	PCMSK = _BV(PCINT1);

	PCMSK = _BV(PCINT0);

		// disable pin-change IRQs on all pins except PB1

}



void timer_check_buttons()

{

	unsigned char cur = !(PINB & _BV(PINB1));

	unsigned char cur = !(PINB & _BV(PINB0));

	unsigned char prev = prev_state;



	prev_state = cur;
@@ -118,8 +118,8 @@ unsigned char buttons_wait_for_release() 


		_delay_ms(100);



		pin = PINB & _BV(PINB1);

	} while (!(pin & _BV(PINB1)));

		pin = PINB & _BV(PINB0);

	} while (!(pin & _BV(PINB0)));



	status_led_on_off(0);