run this here

Dependencies:   Hexi_KW40Z Hexi_OLED_SSD1351

Revision:
0:2b94f7017e4e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Fri Apr 27 05:53:47 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#f9ee4e849f8cbd64f1ec5fdd4ad256585a208360