Frequency Counter Library. Only for mbed LPC1768, mbed LPC1114FN28, Nucleo-F401 and Nucleo-F411. No way to change pin assign.

Dependents:   Frequency_Counter Frequency_wind_speed_measure Frequency_counter_wind_speed

Please refer following page.
http://developer.mbed.org/users/kenjiArai/notebook/simple-frequency-counter/

Revision:
1:fd2e1c853ab6
Parent:
0:83661d0d09c0
Child:
2:54c05b0a117a
--- a/freq_counter.h	Sun Oct 19 06:44:51 2014 +0000
+++ b/freq_counter.h	Tue Oct 21 03:44:46 2014 +0000
@@ -6,7 +6,7 @@
  *  http://www.page.sannet.ne.jp/kenjia/index.html
  *  http://mbed.org/users/kenjiArai/
  *      Created: October   18th, 2014
- *      Revised: October   19th, 2014
+ *      Revised: October   21st, 2014
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE