From 92ec11b505a5b68c33e6158dbc68cea1d23cbd35 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Tue, 10 Feb 2015 12:33:58 +0100
Subject: Reduce CPU frequency

Also reduces PWM frequency. The speakers resonance frequency is 2kHz, with 1MHz
clock speed and prescaler 256 we get pretty close.
---
 pwm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'pwm.c')

diff --git a/pwm.c b/pwm.c
index 250e489..0c9e191 100644
--- a/pwm.c
+++ b/pwm.c
@@ -79,8 +79,8 @@ void pwmStart () {
 	TIMSK0 = (1 << OCIE0A);
 	/* compare value */
 	OCR0A = 1;
-	/* io clock with prescaler 64; ctc (part 2) */
-	TCCR0B = (1 << CS02) | (0 << CS01) | (1 << CS00);
+	/* io clock with prescaler 256; ctc (part 2) */
+	TCCR0B = (1 << CS02) | (0 << CS01) | (0 << CS00);
 }
 
 void pwmStop () {
-- 
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