RTX5的动态内存管理模块使用问题
使用MDK建立的RTX5工程，#include "rtx_lib.h"这个头文件是不是只有RTX5的OS组件才用的到，用户代码不需要使用这个头文件呢？我在测试407工程中外部SRAM的动态内存分配时，用到：osRtxMemoryInit 函数，但是需要包含 "rtx_lib.h" 头文件，MDK工程报错说
找不到这个头文件，但是工程里面RTX5的组件都有包含这个头文件，他们却不报错，奇怪了！
供用户调用的是这些：
原来这些都在 cmsis_os2.h header file 里面。
/// Allocate a memory block from a Memory Pool.
/// \param mp_id memory pool ID obtained by \ref osMemoryPoolNew.
/// \param timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
/// \return address of the allocated memory block or NULL in case of no memory is available.
void *osMemoryPoolAlloc (osMemoryPoolId_t mp_id, uint32_t timeout);
/// Return an allocated memory block back to a Memory Pool.
/// \param mp_id memory pool ID obtained by \ref osMemoryPoolNew.
/// \param block address of the allocated memory block to be returned to the memory pool.
/// \return status code that indicates the execution status of the function.
osStatus_t osMemoryPoolFree (osMemoryPoolId_t mp_id, void *block);
/// Get maximum number of memory blocks in a Memory Pool.
/// \param mp_id memory pool ID obtained by \ref osMemoryPoolNew.
/// \return maximum number of memory blocks.
uint32_t osMemoryPoolGetCapacity (osMemoryPoolId_t mp_id);
/// Get memory block size in a Memory Pool.
/// \param mp_id memory pool ID obtained by \ref osMemoryPoolNew.
/// \return memory block size in bytes.
uint32_t osMemoryPoolGetBlockSize (osMemoryPoolId_t mp_id);
================================================
* ----------------------------------------------------------------------
*
* $Date: 18. June 2018
* $Revision: V2.1.3
*
* Project: CMSIS-RTOS2 API
* Title: cmsis_os2.h header file
*
* Version 2.1.3
* Additional functions allowed to be called from Interrupt Service Routines:
* - osThreadGetId
* Version 2.1.2
* Additional functions allowed to be called from Interrupt Service Routines:
* - osKernelGetInfo, osKernelGetState
* Version 2.1.1
* Additional functions allowed to be called from Interrupt Service Routines:
* - osKernelGetTickCount, osKernelGetTickFreq
* Changed Kernel Tick type to uint32_t:
* - updated: osKernelGetTickCount, osDelayUntil
* Version 2.1.0
* Support for critical and uncritical sections (nesting safe):
* - updated: osKernelLock, osKernelUnlock
* - added: osKernelRestoreLock
* Updated Thread and Event Flags:
* - changed flags parameter and return type from int32_t to uint32_t
* Version 2.0.0
* Initial Release
*---------------------------------------------------------------------------*/
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