From 3fd547f2ea87a71ba97d93636d1ebf9027f42c1e Mon Sep 17 00:00:00 2001
From: Marco <mgross@sw-gross.de>
Date: Fri, 13 May 2022 01:24:38 +0200
Subject: [PATCH] Toggle PD6 instead of PC7 when timer compare interrupt
 occurs. Move timer interrupt routine to timer.c Change timer parameters

---
 src/commands.c |  4 ++--
 src/inverter.c | 10 +++-------
 src/timer.c    | 13 ++++++++++---
 3 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/commands.c b/src/commands.c
index 3fae5a5..0608257 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -97,8 +97,8 @@ void cmd_handle_switch(void)
 {
 	int state = 0;
 
-	PORTC ^= (1<<PC7);
+	PORTD ^= (1<<PD6);
 
-	state = PORTC & (1 << PC7);
+	state = PORTD & (1 << PD6);
 	printf("Pin state is %i\r\n", state);
 }
\ No newline at end of file
diff --git a/src/inverter.c b/src/inverter.c
index 4177e68..dc7280a 100644
--- a/src/inverter.c
+++ b/src/inverter.c
@@ -11,9 +11,11 @@ int main()
 	/* With this MCU frequency, it is 38,4k baud */
 	uart_init(12);
 
+	printf("Starting up!\r\n");
+
 	/* Make PB2 an output pin */
 	DDRB |= (1 << DDB2);
-	DDRC |= (1 << DDC7);
+	DDRD |= (1 << DDD6);
 
 	initCtcTimer0();
 
@@ -28,9 +30,3 @@ int main()
 
 	return 0;
 }
-
-ISR(TIMER0_COMPA_vect)
-{
-	PORTB |= (1 << PB2);
-}
-
diff --git a/src/timer.c b/src/timer.c
index 141627d..b91619a 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -1,4 +1,6 @@
 #include <avr/io.h>
+#include <avr/interrupt.h>
+
 #include "include/timer.h"
 
 void initCtcTimer0(void)
@@ -10,7 +12,7 @@ void initCtcTimer0(void)
 	TIMSK0 |= (1 << OCIE0A);
 	
 	/* Select clock. Prescaler of 8 */
-	TCCR0B |= (1 << CS01);
+	TCCR0B |= (1 << CS02) | (1 << CS00);
 	
 	/* Use CTC Mode */
 	TCCR0A |= (1 << WGM01);
@@ -18,7 +20,7 @@ void initCtcTimer0(void)
 	/* 
 	 * OCR0A contains TOP value for counter:
 	 */
-	OCR0A = 25;
+	OCR0A = 100;
 }
 
 void initOverflowTimer0(void)
@@ -34,4 +36,9 @@ void initOverflowTimer1(void)
 {
 	TCCR1B |= (1<<CS11);
 	TIMSK1 |= (1<<TOIE1);
-}
\ No newline at end of file
+}
+
+ISR(TIMER0_COMPA_vect)
+{
+	PORTB |= (1 << PB2);
+}