Added Standby mode into WakeUp library. This is a checking program for the standby mode on Nucleo-F446RE and other STM32 series.

Dependencies:   WakeUp

Fork of study_step0 by Team_PjL

Please refer notebook.
/users/kenjiArai/notebook/standby-mode-current-consumption-on-nucleo-f446re/#

Revision:
1:abe49c3395cd
Parent:
0:1672d0903bdc
--- a/mbed-os.lib	Thu Aug 10 20:50:46 2017 +0000
+++ b/mbed-os.lib	Thu Sep 21 22:10:34 2017 +0000
@@ -1,1 +1,1 @@
-https://github.com/ARMmbed/mbed-os/#4c256f04596179699c4f14b6863b07cc024ca9be
+https://github.com/ARMmbed/mbed-os/#ca661f9d28526ca8f874b05432493a489c9671ea