1 files changed, 31 insertions, 0 deletions
diff --git a/final_project/clock.c b/final_project/clock.c
new file mode 100644
index 0000000..7c216fc
--- /dev/null
+++ b/final_project/clock.c
@@ -0,0 +1,31 @@
+/*
+ * clock.c
+ *
+ * Created: 4/3/2024 10:29:19 AM
+ *  Author: bsw9xd
+ */ 
+#include "clock.h"
+
+void timer_init_ctc() {
+	TCCR1A = 0x00; //WGM10 = 0, WGM11 = 0 (CTC mode when combined with WGM12 in TCCR1B)
+	TCCR1B = (1 << WGM12);
+	TCNT1 = 0; // initialize timer at 0
+	//TIMSK1 |= (1<<OCIE1A); // enable int at timer1
+
+}
+
+void start_timer() {
+	TCNT1 = 0;
+	OCR1A = 0x3d09; // 1 second
+	if(TIFR1 & (1 << OCF1A)) TIFR1 |= (1 << OCF1A);
+	TCCR1B |=  (1<<CS12) | (1 << CS10); //start timer with 1024 prescalar
+}
+
+void stop_timer() {
+	if(TIFR1 & (1 << OCF1A)) TIFR1 |= (1 << OCF1A);
+	TIMSK1 = (1 << WGM12);
+}
+
+bool timer_done() {
+	return (TIFR1 & (1 << OCF1A)); 
+}
+\ No newline at end of file