From c9daddb636b3c03b5c53da2ef8e11b927927dd04 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Thu, 7 Feb 2013 02:15:37 +0000
Subject: lowpass filterd manual switch

git-svn-id: https://svn.spreadspace.org/avr/trunk@167 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-i2c-sl018/heartbeat.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'usb-i2c-sl018/heartbeat.c')

diff --git a/usb-i2c-sl018/heartbeat.c b/usb-i2c-sl018/heartbeat.c
index fd7f11a..47caffc 100644
--- a/usb-i2c-sl018/heartbeat.c
+++ b/usb-i2c-sl018/heartbeat.c
@@ -32,6 +32,10 @@
 uint8_t heartbeat_cnt = 0;                    
 uint8_t heartbeat_flag;
 
+#define FASTBEAT_PORT PORTD
+#define FASTBEAT_DDR DDRD
+#define FASTBEAT_BIT 5
+
 // while running this gets called every ~10ms
 ISR(TIMER0_COMPA_vect)
 {
@@ -55,10 +59,14 @@ void init_heartbeat(void)
   OCR0A = 155;                 // (1+155)*1024 = 159744 -> ~10 ms @ 16 MHz
   TCNT2 = 0;
   TIMSK0 = 1<<OCIE0A;
+
+  FASTBEAT_DDR |= 1<<FASTBEAT_BIT;
 }
 
 void heartbeat_task(void)
 {
+  FASTBEAT_PORT ^= 1<<FASTBEAT_BIT;
+
   if(heartbeat_flag)
     led_on();
   else
-- 
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