diff --git a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx
index ed494f20..b7fa094b 100644
--- a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx	
+++ b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx	
@@ -336,7 +336,7 @@
               <MiscControls></MiscControls>
               <Define></Define>
               <Undefine></Undefine>
-              <IncludePath>..\..\src;..\ArmTimerCallbacks - C++</IncludePath>
+              <IncludePath>..\..\include;..\ArmTimerCallbacks - C++</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
diff --git a/examples/ArmTimerCallbacks - C++/etl_profile.h b/examples/ArmTimerCallbacks - C++/etl_profile.h
index 4560ba1e..a2e2f33f 100644
--- a/examples/ArmTimerCallbacks - C++/etl_profile.h	
+++ b/examples/ArmTimerCallbacks - C++/etl_profile.h	
@@ -9,13 +9,14 @@
 #define ETL_IVECTOR_REPAIR_ENABLE
 #define ETL_IDEQUE_REPAIR_ENABLE
 #define ETL_IN_UNIT_TEST
+#define ETL_CALLBACK_TIMER_USE_ATOMIC_LOCK
 
 #if (__CC_ARM == 1)
   // ARM5 compiler
-  #include "profiles/armv5.h"
+  #include "etl/profiles/armv5.h"
 #else
   // ARM6 compiler
-  #include "profiles/armv6.h"
+  #include "etl/profiles/armv6.h"
 #endif
 
 #endif
diff --git a/examples/ArmTimerCallbacks - C++/main.cpp b/examples/ArmTimerCallbacks - C++/main.cpp
index 05f19b17..d2d0e5a3 100644
--- a/examples/ArmTimerCallbacks - C++/main.cpp	
+++ b/examples/ArmTimerCallbacks - C++/main.cpp	
@@ -9,8 +9,23 @@ extern "C"
   #include "stm32f4xx.h"     // Device header
 }
 
-#include "function.h"
-#include "callback_timer.h"
+#include "etl/function.h"
+#include "etl/callback_timer.h"
+#include "etl/vector.h"
+
+struct FP
+{
+  void (*function)();
+};
+
+static etl::vector<FP, 10> power_callbacks;
+
+void register_poweroff_callback(void (*function)()) 
+{
+  FP fp = { function };
+  power_callbacks.push_back(fp);
+}
+
 
 const int N_TIMERS = 4;