Example program demonstrates SD card library and how to select 3.3V IO

Dependencies:   SDFileSystem USBDevice max32630fthr

Fork of blinky_max32630fthr by Greg Steiert

Revision:
5:7d50a651f3f3
diff -r bafcac667ef6 -r 7d50a651f3f3 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Fri Feb 03 23:13:13 2017 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#269f58d75b752a4e67a6a2d8c5c698635ffd6752