From fa1628c7aa98a7d4900cad870f6aa1d4c0bda197 Mon Sep 17 00:00:00 2001
From: El Jeffo <mirage@rateaprof.com>
Date: Sun, 27 Sep 2015 22:33:27 +0900
Subject: [PATCH] Update frequency base to output more accurate tones

---
 wiringPi/wiringPi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index 7e1c3a2..0f6ed22 100755
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -2319,7 +2319,7 @@ void pwmToneWrite (int pin, int freq)
     pwmWrite (pin, 0) ;             // Off
   else
   {
-    range = 600000 / freq ;
+    range = 200000 / freq ;
     pwmSetRange (range) ;
     pwmWrite    (pin, range / 2) ;
   }