Support M487 board

Dependencies:   Modbus nvt_rs485

Revision:
0:69a9b661c0ca
diff -r 000000000000 -r 69a9b661c0ca Modbus.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Modbus.lib	Fri Oct 06 02:28:18 2017 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/teams/Nuvoton/code/Modbus/#456375d72644