Example program demonstrates SD card library

Dependencies:   SDFileSystem USBDevice max32630fthr

Fork of FTHR_SD_Demo by Greg Steiert

This example program writes "Hello World!" into a file named "myfile.txt" on the card inserted into the microSD card connector.

Revision:
8:be1c3495b9ea
Parent:
1:90313362ec11
--- a/SDFileSystem.lib	Thu Nov 16 22:21:49 2017 +0000
+++ b/SDFileSystem.lib	Fri Nov 17 20:59:27 2017 +0000
@@ -1,1 +1,1 @@
-https://developer.mbed.org/teams/mbed/code/SDFileSystem/#8db0d3b02cec
+https://os.mbed.com/users/SomeRandomBloke/code/SDFileSystem/#9c5f0c655284