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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/802_15_4/api/SysAL/sys_memory_manager.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/802_15_4/api/SysAL/sys_memory_manager.h
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+/**
+ * Copyright (c) 2016 - 2018 Nordic Semiconductor ASA and Luxoft Global Operations Gmbh.
+ * 
+ * All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+#ifndef SYS_MEMORY_MANAGER_H_INCLUDED
+#define SYS_MEMORY_MANAGER_H_INCLUDED
+
+#include <stddef.h>
+#include <stdint.h>
+
+/** @file
+ * This file contains declarations of the Memory manager API.
+ *
+ * @defgroup sys_memory_manager Memory Manager API
+ * @ingroup sys_15_4
+ * @{
+ * @brief Module to declare Memory Manager API.
+ * @details The Memory Manager module implements the standard API for allocating/freeing memory chunks. The module must
+ * be initialized by sys_mm_init() before a call to any alloc/free routines. The memory can be allocated by a
+ * call to sys_mm_alloc() and freed by a call to sys_mm_free(). Minimal chunk of memory to allocate is one byte,
+ * however the sys_mm_alloc() routine will allocate the number of bytes aligned to the length of the
+ * machine word (e.g. 4 bytes for 32-bit architectures). The module is implemented using the doubly linked
+ * lists API.
+ */
+
+/**@brief Function for initializing the memory manager.
+ * @details Initialize the memory manager pool of the 'size' bytes length at 'p_start' address.
+ * 
+ * @param p_start Pool start address.
+ * @param size    Size of the pool in bytes.
+ */
+void sys_mm_init(void * p_start, size_t size);
+
+
+/**@brief Function for allocating memory in the pool.
+ * @details Search and allocate free memory resources.
+ *
+ * @param[in] size Size of the requested memory.
+ *
+ * @retval    Pointer to allocated memory,
+ *            NULL in case of error.
+ */
+void * sys_mm_alloc(size_t size);
+
+
+/**@brief Function for freeing the allocated memory.
+ *
+ * @param[in] p_addr Pointer to the memory to free.
+ *
+ */
+void sys_mm_free(void * p_addr);
+
+/** @} */
+
+#endif // SYS_MEMORY_MANAGER_H_INCLUDED