Tsungta Wu / Mbed OS NNN50_SPI_master_to_PIC32

This has been tested with 128D EVB SPI connection is shown as following D3 -> 128D EVB pin 82 D4 -> 128D EVB pin 12 D5 -> 128D EVB pin 39

Diff: mbed-os.lib

Revision:
0:01dbd5035212
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Mon Nov 06 06:07:02 2017 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#50b3418e45484ebf442b88cd935a2d5355402d7d