mbed PWM play note to a speaker

Revision:
1:a45ff9a0afea
Parent:
0:32bc20854e98
--- a/mbed-os.lib	Thu Oct 20 12:41:50 2016 +0000
+++ b/mbed-os.lib	Wed Oct 26 03:20:08 2016 +0000
@@ -1,1 +1,1 @@
-https://github.com/ARMmbed/mbed-os/#a6f3fd1a60d5df59246d7caf3f108c4d34e1808e
+https://github.com/ARMmbed/mbed-os/#e435a07d9252f133ea3d9f6c95dfb176f32ab9b6