Kenji Arai / Mbed 2 deprecated Nucleo_RTC_Clock_setting

Check RTC LSE(External Xtal, 32.768kHz) mode

Dependencies:   mbed CheckRTC

Please refer follow links.
My notebook
http://developer.mbed.org/users/kenjiArai/notebook/nucleo-series-clock-structure-and-xtal-oscillation/
Q&A for RTC Xtal
http://developer.mbed.org/questions/4531/RTC-External-Crystal-Nucleo/

Diff: CheckRTC.lib

Revision:
4:56a0cbad89b0
Parent:
3:921a09e41147
--- a/CheckRTC.lib	Sat Nov 01 01:48:56 2014 +0000
+++ b/CheckRTC.lib	Sat May 16 23:38:13 2015 +0000
@@ -1,1 +1,1 @@
-http://developer.mbed.org/users/kenjiArai/code/CheckRTC/#921a188e61c0
+http://developer.mbed.org/users/kenjiArai/code/CheckRTC/#babcde30190d