Update frequency base to output more accurate tones

blecher-at · Sep 27, 2015 · fa1628c · fa1628c
1 parent 9b337de
commit fa1628c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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) ;
   }