From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Sat, 1 Feb 2014 21:08:40 +0000 (+0100)
Subject: firmware: make sure PWM output pin is zero before suspend
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=heater.git;a=commitdiff_plain;h=b30695c8b29227d4de4624940982d94899e8a348;hp=d3b9a34d6b153bd04e7d233c2e2bbcecc70a6fa5

firmware: make sure PWM output pin is zero before suspend
---

diff --git a/firmware/main.c b/firmware/main.c
index 76bed47..4ac8171 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -179,6 +179,7 @@ static void pwm_init()
 	power_timer1_enable();
 
 	DDRB |= _BV(PB4);
+	PORTB &= ~_BV(PB4);
 
 	// TCCR1 = _BV(CS10); // clk/1 = 1 MHz
 	TCCR1 = _BV(CS11) | _BV(CS13); // clk/512 = 2 kHz
@@ -192,6 +193,9 @@ static void pwm_init()
 static void pwm_susp()
 {
 	TCCR1 = 0;
+	TIMSK = 0;
+	GTCCR = 0;
+	PORTB &= ~_BV(PB4);
 }
 
 ISR(TIM1_OVF_vect)