Please see my note book http://mbed.org/users/kenjiArai/notebook/freertos-on-mbed-board-with-mbed-cloud-ide--never-/

This is too old.
Below is another FreeRTOS on mbed.
http://developer.mbed.org/users/rgrover1/code/FreeRTOS/
I don't know it works well or not.
I have not evaluated it.

Revision:
0:d4960fcea8ff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FreeRTOS/Source/include/mpu_wrappers.h	Sat Jan 01 11:17:45 2011 +0000
@@ -0,0 +1,143 @@
+/*
+    FreeRTOS V6.0.3 - Copyright (C) 2010 Real Time Engineers Ltd.
+
+    ***************************************************************************
+    *                                                                         *
+    * If you are:                                                             *
+    *                                                                         *
+    *    + New to FreeRTOS,                                                   *
+    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
+    *    + Looking for basic training,                                        *
+    *    + Wanting to improve your FreeRTOS skills and productivity           *
+    *                                                                         *
+    * then take a look at the FreeRTOS eBook                                  *
+    *                                                                         *
+    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
+    *                  http://www.FreeRTOS.org/Documentation                  *
+    *                                                                         *
+    * A pdf reference manual is also available.  Both are usually delivered   *
+    * to your inbox within 20 minutes to two hours when purchased between 8am *
+    * and 8pm GMT (although please allow up to 24 hours in case of            *
+    * exceptional circumstances).  Thank you for your support!                *
+    *                                                                         *
+    ***************************************************************************
+
+    This file is part of the FreeRTOS distribution.
+
+    FreeRTOS is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License (version 2) as published by the
+    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
+    ***NOTE*** The exception to the GPL is included to allow you to distribute
+    a combined work that includes FreeRTOS without being obliged to provide the
+    source code for proprietary components outside of the FreeRTOS kernel.
+    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+    more details. You should have received a copy of the GNU General Public 
+    License and the FreeRTOS license exception along with FreeRTOS; if not it 
+    can be viewed here: http://www.freertos.org/a00114.html and also obtained 
+    by writing to Richard Barry, contact details for whom are available on the
+    FreeRTOS WEB site.
+
+    1 tab == 4 spaces!
+
+    http://www.FreeRTOS.org - Documentation, latest information, license and
+    contact details.
+
+    http://www.SafeRTOS.com - A version that is certified for use in safety
+    critical systems.
+
+    http://www.OpenRTOS.com - Commercial support, development, porting,
+    licensing and training services.
+*/
+
+#ifndef MPU_WRAPPERS_H
+#define MPU_WRAPPERS_H
+
+// Modified by  Kenji Arai / JH1PJL, November 3rd,2010
+#if 0
+/* This file redefines API functions to be called through a wrapper macro, but
+only for ports that are using the MPU. */
+#ifdef portUSING_MPU_WRAPPERS
+
+    /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE will be defined when this file is
+    included from queue.c or task.c to prevent it from having an effect within
+    those files. */
+    #ifndef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
+
+        #define xTaskGenericCreate                MPU_xTaskGenericCreate
+        #define vTaskAllocateMPURegions            MPU_vTaskAllocateMPURegions
+        #define vTaskDelete                        MPU_vTaskDelete
+        #define vTaskDelayUntil                    MPU_vTaskDelayUntil
+        #define vTaskDelay                        MPU_vTaskDelay
+        #define uxTaskPriorityGet                MPU_uxTaskPriorityGet
+        #define vTaskPrioritySet                MPU_vTaskPrioritySet
+        #define vTaskSuspend                    MPU_vTaskSuspend
+        #define xTaskIsTaskSuspended            MPU_xTaskIsTaskSuspended
+        #define vTaskResume                        MPU_vTaskResume
+        #define vTaskSuspendAll                    MPU_vTaskSuspendAll
+        #define xTaskResumeAll                    MPU_xTaskResumeAll
+        #define xTaskGetTickCount                MPU_xTaskGetTickCount
+        #define uxTaskGetNumberOfTasks            MPU_uxTaskGetNumberOfTasks
+        #define vTaskList                        MPU_vTaskList
+        #define vTaskGetRunTimeStats            MPU_vTaskGetRunTimeStats
+        #define vTaskStartTrace                    MPU_vTaskStartTrace
+        #define ulTaskEndTrace                    MPU_ulTaskEndTrace
+        #define vTaskSetApplicationTaskTag        MPU_vTaskSetApplicationTaskTag
+        #define xTaskGetApplicationTaskTag        MPU_xTaskGetApplicationTaskTag
+        #define xTaskCallApplicationTaskHook    MPU_xTaskCallApplicationTaskHook
+        #define uxTaskGetStackHighWaterMark        MPU_uxTaskGetStackHighWaterMark
+        #define xTaskGetCurrentTaskHandle        MPU_xTaskGetCurrentTaskHandle
+        #define xTaskGetSchedulerState            MPU_xTaskGetSchedulerState
+
+        #define xQueueCreate                    MPU_xQueueCreate
+        #define xQueueCreateMutex                MPU_xQueueCreateMutex
+        #define xQueueGiveMutexRecursive        MPU_xQueueGiveMutexRecursive
+        #define xQueueTakeMutexRecursive        MPU_xQueueTakeMutexRecursive
+        #define xQueueCreateCountingSemaphore    MPU_xQueueCreateCountingSemaphore
+        #define xQueueGenericSend                MPU_xQueueGenericSend
+        #define xQueueAltGenericSend            MPU_xQueueAltGenericSend
+        #define xQueueAltGenericReceive            MPU_xQueueAltGenericReceive
+        #define xQueueGenericReceive            MPU_xQueueGenericReceive
+        #define uxQueueMessagesWaiting            MPU_uxQueueMessagesWaiting
+        #define vQueueDelete                    MPU_vQueueDelete
+
+        #define pvPortMalloc                    MPU_pvPortMalloc
+        #define vPortFree                        MPU_vPortFree
+        #define xPortGetFreeHeapSize            MPU_xPortGetFreeHeapSize
+        #define vPortInitialiseBlocks            MPU_vPortInitialiseBlocks
+
+        #if configQUEUE_REGISTRY_SIZE > 0
+            #define vQueueAddToRegistry                MPU_vQueueAddToRegistry
+            #define vQueueUnregisterQueue            MPU_vQueueUnregisterQueue
+        #endif
+
+        /* Remove the privileged function macro. */
+        #define PRIVILEGED_FUNCTION
+
+    #else /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE */
+
+        /* Ensure API functions go in the privileged execution section. */
+        #define PRIVILEGED_FUNCTION __attribute__((section("privileged_functions")))
+        #define PRIVILEGED_DATA __attribute__((section("privileged_data")))
+        //#define PRIVILEGED_DATA
+
+    #endif /* MPU_WRAPPERS_INCLUDED_FROM_API_FILE */
+
+#else /* portUSING_MPU_WRAPPERS */
+
+    #define PRIVILEGED_FUNCTION
+    #define PRIVILEGED_DATA
+    #define portUSING_MPU_WRAPPERS 0
+
+#endif /* portUSING_MPU_WRAPPERS */
+#endif
+
+// Modified by  Kenji Arai / JH1PJL, November 3rd,2010
+    #define PRIVILEGED_FUNCTION
+    #define PRIVILEGED_DATA
+    #define portUSING_MPU_WRAPPERS 0
+
+
+#endif /* MPU_WRAPPERS_H */
+