From ab8daffc4114f0ba415f6ea026b2bf08ef01a642 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Mon, 19 May 2014 00:19:16 +0200
Subject: decrease prescaler

---
 tube-rotator/stepper.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'tube-rotator/stepper.c')

diff --git a/tube-rotator/stepper.c b/tube-rotator/stepper.c
index ff68072..6b2a4ef 100644
--- a/tube-rotator/stepper.c
+++ b/tube-rotator/stepper.c
@@ -56,15 +56,16 @@ void stepper_init(void)
 {
   STEPPER_PORT &= ~(0xF << STEPPER_FIRST_BIT | 1<<STEPPER_ENABLE_A_BIT | 1<<STEPPER_ENABLE_B_BIT);
   STEPPER_DDR |= (0xF << STEPPER_FIRST_BIT) | (1<<STEPPER_ENABLE_A_BIT) | (1<<STEPPER_ENABLE_B_BIT);
+  stepper_stop();
 }
 
 void stepper_start(void)
 {
   STEPPER_PORT |= (1<<STEPPER_ENABLE_A_BIT) | (1<<STEPPER_ENABLE_B_BIT);
-  TCCR1A = 0;                    // prescaler 1:256, WGM = 4 (CTC)
-  TCCR1B = 1<<WGM12 | 1<<CS12;   //
-  OCR1A = 20;
   TCNT1 = 0;
+  OCR1A = 80;
+  TCCR1A = 0;                              // prescaler 1:64, WGM = 4 (CTC)
+  TCCR1B = 1<<WGM12 | 1<<CS11 | 1<<CS10;   //
   TIMSK1 = 1<<OCIE1A;
 }
 
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