diff --git a/prosjekt.X/fan_speeeed.c b/prosjekt.X/fan_speeeed.c
index aecd729..84a6f69 100644
--- a/prosjekt.X/fan_speeeed.c
+++ b/prosjekt.X/fan_speeeed.c
@@ -62,6 +62,30 @@ void PORT_init(){
     
 }
 
+void TCB0_Init(void){
+    TCB3.CTRLB = TCB_CNTMODE_FRQPW_gc;    /* Input Capture Frequency */
+    TCB3.EVCTRL = TCB_CAPTEI_bm;        /* Event Input Enable: enabled */ 
+    TCB3.EVCTRL |= (1 << TCB_CAPTEI_bp | 1 << TCB_EDGE_bp | 1 << TCB_FILTER_bp);  /* Event Input Enable: enabled */ 
+    TCB3.INTCTRL = TCB_CAPT_bm;         /* Capture or Timeout: enabled */
+    TCB3.CTRLA = TCB_CLKSEL_DIV1_gc     /* CLK_PER/1 (From Prescaler) - This is needed to be able to count to 40 Hz with a 4 Mhz system clock */                                             
+          | TCB_ENABLE_bm    /* Enable: enabled */
+          | TCB_RUNSTDBY_bm;  /* Run Standby: enabled */
+} 
+void EVSYS_Init(void)
+{
+    /* Zero-cross detector 0 out linked to event channel 0 */
+    EVSYS.CHANNEL0 = EVSYS_CHANNEL0_PORTA_PIN5_gc;
+    /* TCB uses event channel 0 */
+    EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;
+}
+ 
+void PORT_Init(void)
+{
+    PORTB.OUTSET |= PIN5_bm;
+    PORTB.DIRSET |= PIN5_bm;  
+}
+//-----------------------------------------------------------------------------------------------------
+//-------------------------------------- S E T U P-----------------------------------------------------
 
 /*
 ISR ( TCA0_OVF_vect ) {
@@ -77,6 +101,8 @@ ISR (TCB3_INT_vect){
     uint16_t yo = TCB3.CNT;
     printf("CNT %u", yo);
     
+    printf("too");
+    
     uint16_t stewui = TCB3.CCMP; 
     printf("CCMP %u", stewui);
     
diff --git a/prosjekt.X/main.c b/prosjekt.X/main.c
index 32a2a94..bf49931 100644
--- a/prosjekt.X/main.c
+++ b/prosjekt.X/main.c
@@ -30,15 +30,24 @@ int main() {
     init_uart((uint16_t)9600);
     stdout = &USART_stream;
     TCA0_init ();
-    PORT_init();
+    //PORT_init();  
+    //test
+    
+    TCB0_Init();
+  EVSYS_Init();
+  PORT_Init();
+  TCB3.INTCTRL = 0b00000001;     // Bit 0 ? CAPT Capture Interrupt Enable
+  
      sei();
      
     while (1) {
-        //printf("loop")
-        uint16_t yo = TCB3.CNT;
-        printf("CNT %u", yo);
+
+        //printf("loop");
+        //uint16_t yo = TCB3.CNT;
+        //printf("CNT %u", yo);
     
-        uint16_t stewui = TCB3.CCMP; 
-        printf("CCMP %u", stewui);
+        //uint16_t stewui = TCB3.CCMP; 
+        //printf("CCMP %u", stewui)
+        ;
     }
 }
\ No newline at end of file