see https://developer.mbed.org/users/okini3939/notebook/graphic-poi/

Dependencies:   IAP RAM_DISK USBDevice mbed

Revision:
0:49512863ec9b
Child:
1:dc6da812295a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RAM_DISK.lib	Thu Dec 01 01:58:40 2016 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/samux/code/RAM_DISK/#69984d40fc4b