P3 initial

Abgaben/P2/Hazinedar_3108590_ARBKVS_2_Interrupt.c

@@ -0,0 +1,68 @@
+/*
+ * P2 Interrups.c
+ *
+ * Created: 11.11.2023 21:07:41
+ * Author : Safak
+ */ 
+
+#include <avr/io.h>
+
+#define F_CPU 16000000UL
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>										// boolean type and values
+
+#define LED0 PINB0
+#define LED9 PINB1
+#define SW1 PIND2
+#define SW2 PIND3
+
+volatile int activeLED = LED0;
+volatile bool blink = true;
+
+void setupPorts() {
+	DDRB = 0xff;		
+	PORTB = 0x00;
+	
+	DDRD = 0x00;
+	PORTD |= (1 << SW1) | (1 << SW2); // Activate pull-up resistors
+
+	// Falling edge of INT0 and INT1 generates an interrupt request
+	EICRA |= (1 << ISC11) | (1 << ISC01);
+	EIMSK |= (1 << INT0) | (1 << INT1);  // Enable external interrupt request
+	sei(); // Set global interrupt enable
+}
+
+// SW1 is pressed
+ISR(INT0_vect) {
+	if (activeLED == LED0) {                                // if D0 is already on, switching from blink to steady light or vice versa
+		blink = !blink;
+	}
+	else {                                                   // else D9 is on, turn off D9 and turn on D0
+		PORTB = (1 << LED0);
+	}
+	
+	activeLED = LED0;
+}
+
+// SW2 is pressed
+ISR(INT1_vect) {
+	if (activeLED == LED9) {
+		blink = !blink;
+	}
+	else {
+		PORTB = (1 << LED9);
+	}
+	
+	activeLED = LED9;
+}
+
+int main(void) {
+	setupPorts();
+	while (1) {
+		if (blink) {
+			PORTB ^= (1 << activeLED); // Toggle active LED
+		}
+		_delay_ms(50);
+	}
+}