In this example three semaphores are used to mantain the monotonic execution order of three threads. Each task is consumer of a semaphore and at the same time producer of an another semaphore.Watching the RGB LED you can see the order of execution.

Dependencies:   mbed-rtos mbed

Revision:
0:61ad4bb19246
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos.lib	Wed Feb 10 12:40:31 2016 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed-rtos/#3d9d2b8b8f17