updated to have helper function

src/timer/timer.c

@@ -7,12 +7,30 @@
  * @file module_name.h
  */
 
-#include "timer.h"
+// Used during testing and for the LSP
+#ifndef __AVR_ATtiny404__
+#define __AVR_ATtiny404__
+#endif
 
-// dumb test function
-int add_two(int a)
+#include "timer.h"
+#include "avr/io.h"
+
+void Timer_SelectClock(void)
 {
-    int b = a;
-    b += 2;
-    return b;
+    //set the timer to divde the clock by 256
+    //Check datasheet page: 189 
+    TCA0.SINGLE.CTRLA |= 0x6;
+    
 }
+
+void Timer_Enable(void)
+{
+    TCA0.SINGLE.CTRLA |= (1<<0);
+}
+
+void Timer_Period(void)
+{
+    TCA0.SINGLE.PER = 10000;
+}
+
+

src/timer/timer.h

@@ -10,10 +10,18 @@
 #ifndef TIMER
 #define TIMER
 
+#include "inttypes.h"
+
 /**
- * A function that adds two to a number
+ *
  * @param a The first argument
  */
-int add_two(int a);
+
+/**
+ * The timer select clock function sets the divider to 256 assuming a
+ * default clock diver of 6 is applied to the 20MHz crystal. This gives a
+ * 13020.8333 Hz or approximatly 13.02Khz tick rate.
+ */
+void Timer_SelectClock(void);
 
 #endif // TIMER