From df3d0c6ce634ede0570fdf7d8107aea2798f9044 Mon Sep 17 00:00:00 2001
From: Inamr <inamr@stud.ntnu.no>
Date: Tue, 19 Mar 2024 14:29:57 +0100
Subject: [PATCH] made interrupts as timer

---
 prosjekt.X/fan speeeed.h     |  3 +++
 prosjekt.X/fan speeeeeeeed.c | 18 +++++++++++++++---
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/prosjekt.X/fan speeeed.h b/prosjekt.X/fan speeeed.h
index 110682f..8774e4f 100644
--- a/prosjekt.X/fan speeeed.h	
+++ b/prosjekt.X/fan speeeed.h	
@@ -20,6 +20,9 @@ extern "C" {
     #include <stdlib.h>
     #include <stdint.h>
     #include <math.h>
+    #include <avr/interrupt.h>
+
+    
     int fan_speed(float value);
 
 
diff --git a/prosjekt.X/fan speeeeeeeed.c b/prosjekt.X/fan speeeeeeeed.c
index df71665..f3a8d41 100644
--- a/prosjekt.X/fan speeeeeeeed.c	
+++ b/prosjekt.X/fan speeeeeeeed.c	
@@ -2,6 +2,8 @@
 #include "fan speeeed.h"
 
 int fan_speed(float voltage_value){
+        init_millis()
+        sei();
         float fan_speed;
         float t = 0;
         float past_time = 0;
@@ -9,12 +11,22 @@ int fan_speed(float voltage_value){
         int old_value = 0;
         int f;
         if (voltage_value > 300 && old_value < 300){
-            start_time = millis();
+            start_time =  init_millis()
             t =(start_time - past_time);
-            paste_time = start_time;
+            past_time = start_time;
         }
         voltage_value = old_value;
         f = ((1/t)*1000);
         fan_speed = (f*60)/2;
         return fan_speed;
-    }
\ No newline at end of file
+    }
+
+ISR(PORTB_PORT_vect)
+{
+	static int counter = 0;
+	if (counter >=5){
+		PORTB.OUT ^= 0x0F;
+		counter = 0; 
+	}
+    PORTB.INFLAFS = PIN2_bm;
+}
\ No newline at end of file