Init

Author: zpreisler

button.c

@@ -0,0 +1,27 @@
+#include <avr/io.h>
+#include <util/delay.h>
+
+#define BLINK_DELAY_MS 1000
+
+int main(void){
+	/* set pin 5 of PORTB for output*/
+	char val=0;
+	DDRB |= _BV(DDB5);
+	DDRB &= ~_BV(DDB4);
+	while(1){
+		/* set pin 5 high to turn led on */
+		val= PINB & _BV(PORTB4);
+		if(!val){
+			PORTB |= _BV(PORTB5);
+		}
+		else{
+			PORTB &= ~_BV(PORTB5);
+		}
+		//PORTB &= ~_BV(PORTB4);
+		//_delay_ms(BLINK_DELAY_MS);
+		/* set pin 5 low to turn led off */
+		//PORTB &= ~_BV(PORTB5);
+		//PORTB &= ~_BV(PORTB4);
+		//_delay_ms(BLINK_DELAY_MS);
+	}
+}