initial cleanup and mapping

examples/softTone.c

@@ -0,0 +1,54 @@
+/*
+ * softTone.c:
+ *	Test of the softTone module in wiringPi
+ *	Plays a scale out on pin 3 - connect pizeo disc to pin 3 & 0v
+ *
+ * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include <wiringPi.h>
+#include <softTone.h>
+
+#define	PIN	3
+
+int scale [8] = { 262, 294, 330, 349, 392, 440, 494, 525 } ;
+
+int main ()
+{
+  int i ;
+
+  wiringPiSetup () ;
+
+  softToneCreate (PIN) ;
+
+  for (;;)
+  {
+    for (i = 0 ; i < 8 ; ++i)
+    {
+      printf ("%3d\n", i) ;
+      softToneWrite (PIN, scale [i]) ;
+      delay (500) ;
+    }
+  }
+}