From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Fri, 30 Nov 2012 01:22:58 +0000 (+0100)
Subject: make timer faster, sub-1 LSB PWM values need it
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=c4ab80eff676edbc1fd16727f79c17ec5f337d32;p=bike-lights.git

make timer faster, sub-1 LSB PWM values need it

otherwise, the step-up blinks with low pwm settings
---

diff --git a/firmware/tmr.c b/firmware/tmr.c
index 9a0a38b..37b240b 100644
--- a/firmware/tmr.c
+++ b/firmware/tmr.c
@@ -4,14 +4,14 @@
 #include "lights.h"
 
 volatile uint16_t jiffies;
-#define PATTERN_DIV 5	// clk/10
+#define PATTERN_DIV 10	// clk/10
 static unsigned char pattern_div;
 
 void init_tmr()
 {
 	TCCR0A = _BV(WGM00);
 	TCCR0B = _BV(CS02) | _BV(CS00); // CLK/1024 = 1 kHz
-	OCR0A = 10; // 100 Hz
+	OCR0A = 5; // 200 Hz
 	TIMSK |= _BV(OCIE0A);
 
 	jiffies = 0;