using stm32cube to generate startup code

Dependencies:   mbed-src

Revision:
0:8a83ba215cd0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-src.lib	Mon Aug 25 15:09:19 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed-src/#bdc8a81aee9a