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/

Committer:
kenjiArai
Date:
Sat Oct 25 05:42:45 2014 +0000
Revision:
1:eaa3c3f36c03
Parent:
0:bad75bd13618
Child:
2:8b6a8cfa173a
RTC Clock test program only for Nucleo F401RE & F411RE.  Standard Lib. cannot support a LSE(External 32.768kHz Xtal) mode due to short time-out setting (Other words, capacitor's value for Xtal are not optimize due to poor design consideration)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 1:eaa3c3f36c03 1 http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1