Official ARM version: v5.4.0

    Add CMSIS V5.4.0, please refer to index.html available under \docs folder.

    Note: content of \CMSIS\Core\Include has been copied under \Include to keep the same structure
         used in existing projects, and thus avoid projects mass update
    Note: the following components have been removed from ARM original delivery (as not used in ST packages)
        - CMSIS_EW2018.pdf
        - .gitattributes
        - .gitignore
        - \Device
        - \CMSIS
           - \CoreValidation
		   - \DAP
           - \Documentation
           - \DoxyGen
           - \Driver
           - \Pack
           - \RTOS\CMSIS_RTOS_Tutorial.pdf
           - \RTOS\RTX
           - \RTOS\Template
           - \RTOS2\RTX
           - \Utilities
           - All ARM/GCC projects files are deleted from \DSP, \RTOS and \RTOS2

Change-Id: Ia026c3f0f0d016627a4fb5a9032852c33d24b4d3

2 files changed, 827 insertions, 0 deletions

diff --git a/RTOS2/Include/cmsis_os2.h b/RTOS2/Include/cmsis_os2.h
new file mode 100644
index 0000000..e0b602c
--- /dev/null
+++ b/RTOS2/Include/cmsis_os2.h
@@ -0,0 +1,756 @@
+/*
+ * Copyright (c) 2013-2018 Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ----------------------------------------------------------------------
+ *
+ * $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
+ *---------------------------------------------------------------------------*/
+ 
+#ifndef CMSIS_OS2_H_
+#define CMSIS_OS2_H_
+ 
+#ifndef __NO_RETURN
+#if   defined(__CC_ARM)
+#define __NO_RETURN __declspec(noreturn)
+#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
+#define __NO_RETURN __attribute__((__noreturn__))
+#elif defined(__GNUC__)
+#define __NO_RETURN __attribute__((__noreturn__))
+#elif defined(__ICCARM__)
+#define __NO_RETURN __noreturn
+#else
+#define __NO_RETURN
+#endif
+#endif
+ 
+#include <stdint.h>
+#include <stddef.h>
+ 
+#ifdef  __cplusplus
+extern "C"
+{
+#endif
+ 
+ 
+//  ==== Enumerations, structures, defines ====
+ 
+/// Version information.
+typedef struct {
+  uint32_t                       api;   ///< API version (major.minor.rev: mmnnnrrrr dec).
+  uint32_t                    kernel;   ///< Kernel version (major.minor.rev: mmnnnrrrr dec).
+} osVersion_t;
+ 
+/// Kernel state.
+typedef enum {
+  osKernelInactive        =  0,         ///< Inactive.
+  osKernelReady           =  1,         ///< Ready.
+  osKernelRunning         =  2,         ///< Running.
+  osKernelLocked          =  3,         ///< Locked.
+  osKernelSuspended       =  4,         ///< Suspended.
+  osKernelError           = -1,         ///< Error.
+  osKernelReserved        = 0x7FFFFFFFU ///< Prevents enum down-size compiler optimization.
+} osKernelState_t;
+ 
+/// Thread state.
+typedef enum {
+  osThreadInactive        =  0,         ///< Inactive.
+  osThreadReady           =  1,         ///< Ready.
+  osThreadRunning         =  2,         ///< Running.
+  osThreadBlocked         =  3,         ///< Blocked.
+  osThreadTerminated      =  4,         ///< Terminated.
+  osThreadError           = -1,         ///< Error.
+  osThreadReserved        = 0x7FFFFFFF  ///< Prevents enum down-size compiler optimization.
+} osThreadState_t;
+ 
+/// Priority values.
+typedef enum {
+  osPriorityNone          =  0,         ///< No priority (not initialized).
+  osPriorityIdle          =  1,         ///< Reserved for Idle thread.
+  osPriorityLow           =  8,         ///< Priority: low
+  osPriorityLow1          =  8+1,       ///< Priority: low + 1
+  osPriorityLow2          =  8+2,       ///< Priority: low + 2
+  osPriorityLow3          =  8+3,       ///< Priority: low + 3
+  osPriorityLow4          =  8+4,       ///< Priority: low + 4
+  osPriorityLow5          =  8+5,       ///< Priority: low + 5
+  osPriorityLow6          =  8+6,       ///< Priority: low + 6
+  osPriorityLow7          =  8+7,       ///< Priority: low + 7
+  osPriorityBelowNormal   = 16,         ///< Priority: below normal
+  osPriorityBelowNormal1  = 16+1,       ///< Priority: below normal + 1
+  osPriorityBelowNormal2  = 16+2,       ///< Priority: below normal + 2
+  osPriorityBelowNormal3  = 16+3,       ///< Priority: below normal + 3
+  osPriorityBelowNormal4  = 16+4,       ///< Priority: below normal + 4
+  osPriorityBelowNormal5  = 16+5,       ///< Priority: below normal + 5
+  osPriorityBelowNormal6  = 16+6,       ///< Priority: below normal + 6
+  osPriorityBelowNormal7  = 16+7,       ///< Priority: below normal + 7
+  osPriorityNormal        = 24,         ///< Priority: normal
+  osPriorityNormal1       = 24+1,       ///< Priority: normal + 1
+  osPriorityNormal2       = 24+2,       ///< Priority: normal + 2
+  osPriorityNormal3       = 24+3,       ///< Priority: normal + 3
+  osPriorityNormal4       = 24+4,       ///< Priority: normal + 4
+  osPriorityNormal5       = 24+5,       ///< Priority: normal + 5
+  osPriorityNormal6       = 24+6,       ///< Priority: normal + 6
+  osPriorityNormal7       = 24+7,       ///< Priority: normal + 7
+  osPriorityAboveNormal   = 32,         ///< Priority: above normal
+  osPriorityAboveNormal1  = 32+1,       ///< Priority: above normal + 1
+  osPriorityAboveNormal2  = 32+2,       ///< Priority: above normal + 2
+  osPriorityAboveNormal3  = 32+3,       ///< Priority: above normal + 3
+  osPriorityAboveNormal4  = 32+4,       ///< Priority: above normal + 4
+  osPriorityAboveNormal5  = 32+5,       ///< Priority: above normal + 5
+  osPriorityAboveNormal6  = 32+6,       ///< Priority: above normal + 6
+  osPriorityAboveNormal7  = 32+7,       ///< Priority: above normal + 7
+  osPriorityHigh          = 40,         ///< Priority: high
+  osPriorityHigh1         = 40+1,       ///< Priority: high + 1
+  osPriorityHigh2         = 40+2,       ///< Priority: high + 2
+  osPriorityHigh3         = 40+3,       ///< Priority: high + 3
+  osPriorityHigh4         = 40+4,       ///< Priority: high + 4
+  osPriorityHigh5         = 40+5,       ///< Priority: high + 5
+  osPriorityHigh6         = 40+6,       ///< Priority: high + 6
+  osPriorityHigh7         = 40+7,       ///< Priority: high + 7
+  osPriorityRealtime      = 48,         ///< Priority: realtime
+  osPriorityRealtime1     = 48+1,       ///< Priority: realtime + 1
+  osPriorityRealtime2     = 48+2,       ///< Priority: realtime + 2
+  osPriorityRealtime3     = 48+3,       ///< Priority: realtime + 3
+  osPriorityRealtime4     = 48+4,       ///< Priority: realtime + 4
+  osPriorityRealtime5     = 48+5,       ///< Priority: realtime + 5
+  osPriorityRealtime6     = 48+6,       ///< Priority: realtime + 6
+  osPriorityRealtime7     = 48+7,       ///< Priority: realtime + 7
+  osPriorityISR           = 56,         ///< Reserved for ISR deferred thread.
+  osPriorityError         = -1,         ///< System cannot determine priority or illegal priority.
+  osPriorityReserved      = 0x7FFFFFFF  ///< Prevents enum down-size compiler optimization.
+} osPriority_t;
+ 
+/// Entry point of a thread.
+typedef void (*osThreadFunc_t) (void *argument);
+ 
+/// Timer callback function.
+typedef void (*osTimerFunc_t) (void *argument);
+ 
+/// Timer type.
+typedef enum {
+  osTimerOnce               = 0,          ///< One-shot timer.
+  osTimerPeriodic           = 1           ///< Repeating timer.
+} osTimerType_t;
+ 
+// Timeout value.
+#define osWaitForever         0xFFFFFFFFU ///< Wait forever timeout value.
+ 
+// Flags options (\ref osThreadFlagsWait and \ref osEventFlagsWait).
+#define osFlagsWaitAny        0x00000000U ///< Wait for any flag (default).
+#define osFlagsWaitAll        0x00000001U ///< Wait for all flags.
+#define osFlagsNoClear        0x00000002U ///< Do not clear flags which have been specified to wait for.
+ 
+// Flags errors (returned by osThreadFlagsXxxx and osEventFlagsXxxx).
+#define osFlagsError          0x80000000U ///< Error indicator.
+#define osFlagsErrorUnknown   0xFFFFFFFFU ///< osError (-1).
+#define osFlagsErrorTimeout   0xFFFFFFFEU ///< osErrorTimeout (-2).
+#define osFlagsErrorResource  0xFFFFFFFDU ///< osErrorResource (-3).
+#define osFlagsErrorParameter 0xFFFFFFFCU ///< osErrorParameter (-4).
+#define osFlagsErrorISR       0xFFFFFFFAU ///< osErrorISR (-6).
+ 
+// Thread attributes (attr_bits in \ref osThreadAttr_t).
+#define osThreadDetached      0x00000000U ///< Thread created in detached mode (default)
+#define osThreadJoinable      0x00000001U ///< Thread created in joinable mode
+ 
+// Mutex attributes (attr_bits in \ref osMutexAttr_t).
+#define osMutexRecursive      0x00000001U ///< Recursive mutex.
+#define osMutexPrioInherit    0x00000002U ///< Priority inherit protocol.
+#define osMutexRobust         0x00000008U ///< Robust mutex.
+ 
+/// Status code values returned by CMSIS-RTOS functions.
+typedef enum {
+  osOK                      =  0,         ///< Operation completed successfully.
+  osError                   = -1,         ///< Unspecified RTOS error: run-time error but no other error message fits.
+  osErrorTimeout            = -2,         ///< Operation not completed within the timeout period.
+  osErrorResource           = -3,         ///< Resource not available.
+  osErrorParameter          = -4,         ///< Parameter error.
+  osErrorNoMemory           = -5,         ///< System is out of memory: it was impossible to allocate or reserve memory for the operation.
+  osErrorISR                = -6,         ///< Not allowed in ISR context: the function cannot be called from interrupt service routines.
+  osStatusReserved          = 0x7FFFFFFF  ///< Prevents enum down-size compiler optimization.
+} osStatus_t;
+ 
+ 
+/// \details Thread ID identifies the thread.
+typedef void *osThreadId_t;
+ 
+/// \details Timer ID identifies the timer.
+typedef void *osTimerId_t;
+ 
+/// \details Event Flags ID identifies the event flags.
+typedef void *osEventFlagsId_t;
+ 
+/// \details Mutex ID identifies the mutex.
+typedef void *osMutexId_t;
+ 
+/// \details Semaphore ID identifies the semaphore.
+typedef void *osSemaphoreId_t;
+ 
+/// \details Memory Pool ID identifies the memory pool.
+typedef void *osMemoryPoolId_t;
+ 
+/// \details Message Queue ID identifies the message queue.
+typedef void *osMessageQueueId_t;
+ 
+ 
+#ifndef TZ_MODULEID_T
+#define TZ_MODULEID_T
+/// \details Data type that identifies secure software modules called by a process.
+typedef uint32_t TZ_ModuleId_t;
+#endif
+ 
+ 
+/// Attributes structure for thread.
+typedef struct {
+  const char                   *name;   ///< name of the thread
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+  void                   *stack_mem;    ///< memory for stack
+  uint32_t                stack_size;   ///< size of stack
+  osPriority_t              priority;   ///< initial thread priority (default: osPriorityNormal)
+  TZ_ModuleId_t            tz_module;   ///< TrustZone module identifier
+  uint32_t                  reserved;   ///< reserved (must be 0)
+} osThreadAttr_t;
+ 
+/// Attributes structure for timer.
+typedef struct {
+  const char                   *name;   ///< name of the timer
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+} osTimerAttr_t;
+ 
+/// Attributes structure for event flags.
+typedef struct {
+  const char                   *name;   ///< name of the event flags
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+} osEventFlagsAttr_t;
+ 
+/// Attributes structure for mutex.
+typedef struct {
+  const char                   *name;   ///< name of the mutex
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+} osMutexAttr_t;
+ 
+/// Attributes structure for semaphore.
+typedef struct {
+  const char                   *name;   ///< name of the semaphore
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+} osSemaphoreAttr_t;
+ 
+/// Attributes structure for memory pool.
+typedef struct {
+  const char                   *name;   ///< name of the memory pool
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+  void                      *mp_mem;    ///< memory for data storage
+  uint32_t                   mp_size;   ///< size of provided memory for data storage 
+} osMemoryPoolAttr_t;
+ 
+/// Attributes structure for message queue.
+typedef struct {
+  const char                   *name;   ///< name of the message queue
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+  void                      *mq_mem;    ///< memory for data storage
+  uint32_t                   mq_size;   ///< size of provided memory for data storage 
+} osMessageQueueAttr_t;
+ 
+ 
+//  ==== Kernel Management Functions ====
+ 
+/// Initialize the RTOS Kernel.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osKernelInitialize (void);
+ 
+///  Get RTOS Kernel Information.
+/// \param[out]    version       pointer to buffer for retrieving version information.
+/// \param[out]    id_buf        pointer to buffer for retrieving kernel identification string.
+/// \param[in]     id_size       size of buffer for kernel identification string.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osKernelGetInfo (osVersion_t *version, char *id_buf, uint32_t id_size);
+ 
+/// Get the current RTOS Kernel state.
+/// \return current RTOS Kernel state.
+osKernelState_t osKernelGetState (void);
+ 
+/// Start the RTOS Kernel scheduler.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osKernelStart (void);
+ 
+/// Lock the RTOS Kernel scheduler.
+/// \return previous lock state (1 - locked, 0 - not locked, error code if negative).
+int32_t osKernelLock (void);
+ 
+/// Unlock the RTOS Kernel scheduler.
+/// \return previous lock state (1 - locked, 0 - not locked, error code if negative).
+int32_t osKernelUnlock (void);
+ 
+/// Restore the RTOS Kernel scheduler lock state.
+/// \param[in]     lock          lock state obtained by \ref osKernelLock or \ref osKernelUnlock.
+/// \return new lock state (1 - locked, 0 - not locked, error code if negative).
+int32_t osKernelRestoreLock (int32_t lock);
+ 
+/// Suspend the RTOS Kernel scheduler.
+/// \return time in ticks, for how long the system can sleep or power-down.
+uint32_t osKernelSuspend (void);
+ 
+/// Resume the RTOS Kernel scheduler.
+/// \param[in]     sleep_ticks   time in ticks for how long the system was in sleep or power-down mode.
+void osKernelResume (uint32_t sleep_ticks);
+ 
+/// Get the RTOS kernel tick count.
+/// \return RTOS kernel current tick count.
+uint32_t osKernelGetTickCount (void);
+ 
+/// Get the RTOS kernel tick frequency.
+/// \return frequency of the kernel tick in hertz, i.e. kernel ticks per second.
+uint32_t osKernelGetTickFreq (void);
+ 
+/// Get the RTOS kernel system timer count.
+/// \return RTOS kernel current system timer count as 32-bit value.
+uint32_t osKernelGetSysTimerCount (void);
+ 
+/// Get the RTOS kernel system timer frequency.
+/// \return frequency of the system timer in hertz, i.e. timer ticks per second.
+uint32_t osKernelGetSysTimerFreq (void);
+ 
+ 
+//  ==== Thread Management Functions ====
+ 
+/// Create a thread and add it to Active Threads.
+/// \param[in]     func          thread function.
+/// \param[in]     argument      pointer that is passed to the thread function as start argument.
+/// \param[in]     attr          thread attributes; NULL: default values.
+/// \return thread ID for reference by other functions or NULL in case of error.
+osThreadId_t osThreadNew (osThreadFunc_t func, void *argument, const osThreadAttr_t *attr);
+ 
+/// Get name of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return name as null-terminated string.
+const char *osThreadGetName (osThreadId_t thread_id);
+ 
+/// Return the thread ID of the current running thread.
+/// \return thread ID for reference by other functions or NULL in case of error.
+osThreadId_t osThreadGetId (void);
+ 
+/// Get current thread state of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return current thread state of the specified thread.
+osThreadState_t osThreadGetState (osThreadId_t thread_id);
+ 
+/// Get stack size of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return stack size in bytes.
+uint32_t osThreadGetStackSize (osThreadId_t thread_id);
+ 
+/// Get available stack space of a thread based on stack watermark recording during execution.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return remaining stack space in bytes.
+uint32_t osThreadGetStackSpace (osThreadId_t thread_id);
+ 
+/// Change priority of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \param[in]     priority      new priority value for the thread function.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadSetPriority (osThreadId_t thread_id, osPriority_t priority);
+ 
+/// Get current priority of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return current priority value of the specified thread.
+osPriority_t osThreadGetPriority (osThreadId_t thread_id);
+ 
+/// Pass control to next thread that is in state \b READY.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadYield (void);
+ 
+/// Suspend execution of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadSuspend (osThreadId_t thread_id);
+ 
+/// Resume execution of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadResume (osThreadId_t thread_id);
+ 
+/// Detach a thread (thread storage can be reclaimed when thread terminates).
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadDetach (osThreadId_t thread_id);
+ 
+/// Wait for specified thread to terminate.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadJoin (osThreadId_t thread_id);
+ 
+/// Terminate execution of current running thread.
+__NO_RETURN void osThreadExit (void);
+ 
+/// Terminate execution of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osThreadTerminate (osThreadId_t thread_id);
+ 
+/// Get number of active threads.
+/// \return number of active threads.
+uint32_t osThreadGetCount (void);
+ 
+/// Enumerate active threads.
+/// \param[out]    thread_array  pointer to array for retrieving thread IDs.
+/// \param[in]     array_items   maximum number of items in array for retrieving thread IDs.
+/// \return number of enumerated threads.
+uint32_t osThreadEnumerate (osThreadId_t *thread_array, uint32_t array_items);
+ 
+ 
+//  ==== Thread Flags Functions ====
+ 
+/// Set the specified Thread Flags of a thread.
+/// \param[in]     thread_id     thread ID obtained by \ref osThreadNew or \ref osThreadGetId.
+/// \param[in]     flags         specifies the flags of the thread that shall be set.
+/// \return thread flags after setting or error code if highest bit set.
+uint32_t osThreadFlagsSet (osThreadId_t thread_id, uint32_t flags);
+ 
+/// Clear the specified Thread Flags of current running thread.
+/// \param[in]     flags         specifies the flags of the thread that shall be cleared.
+/// \return thread flags before clearing or error code if highest bit set.
+uint32_t osThreadFlagsClear (uint32_t flags);
+ 
+/// Get the current Thread Flags of current running thread.
+/// \return current thread flags.
+uint32_t osThreadFlagsGet (void);
+ 
+/// Wait for one or more Thread Flags of the current running thread to become signaled.
+/// \param[in]     flags         specifies the flags to wait for.
+/// \param[in]     options       specifies flags options (osFlagsXxxx).
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return thread flags before clearing or error code if highest bit set.
+uint32_t osThreadFlagsWait (uint32_t flags, uint32_t options, uint32_t timeout);
+ 
+ 
+//  ==== Generic Wait Functions ====
+ 
+/// Wait for Timeout (Time Delay).
+/// \param[in]     ticks         \ref CMSIS_RTOS_TimeOutValue "time ticks" value
+/// \return status code that indicates the execution status of the function.
+osStatus_t osDelay (uint32_t ticks);
+ 
+/// Wait until specified time.
+/// \param[in]     ticks         absolute time in ticks
+/// \return status code that indicates the execution status of the function.
+osStatus_t osDelayUntil (uint32_t ticks);
+ 
+ 
+//  ==== Timer Management Functions ====
+ 
+/// Create and Initialize a timer.
+/// \param[in]     func          function pointer to callback function.
+/// \param[in]     type          \ref osTimerOnce for one-shot or \ref osTimerPeriodic for periodic behavior.
+/// \param[in]     argument      argument to the timer callback function.
+/// \param[in]     attr          timer attributes; NULL: default values.
+/// \return timer ID for reference by other functions or NULL in case of error.
+osTimerId_t osTimerNew (osTimerFunc_t func, osTimerType_t type, void *argument, const osTimerAttr_t *attr);
+ 
+/// Get name of a timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerNew.
+/// \return name as null-terminated string.
+const char *osTimerGetName (osTimerId_t timer_id);
+ 
+/// Start or restart a timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerNew.
+/// \param[in]     ticks         \ref CMSIS_RTOS_TimeOutValue "time ticks" value of the timer.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osTimerStart (osTimerId_t timer_id, uint32_t ticks);
+ 
+/// Stop a timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osTimerStop (osTimerId_t timer_id);
+ 
+/// Check if a timer is running.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerNew.
+/// \return 0 not running, 1 running.
+uint32_t osTimerIsRunning (osTimerId_t timer_id);
+ 
+/// Delete a timer.
+/// \param[in]     timer_id      timer ID obtained by \ref osTimerNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osTimerDelete (osTimerId_t timer_id);
+ 
+ 
+//  ==== Event Flags Management Functions ====
+ 
+/// Create and Initialize an Event Flags object.
+/// \param[in]     attr          event flags attributes; NULL: default values.
+/// \return event flags ID for reference by other functions or NULL in case of error.
+osEventFlagsId_t osEventFlagsNew (const osEventFlagsAttr_t *attr);
+ 
+/// Get name of an Event Flags object.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \return name as null-terminated string.
+const char *osEventFlagsGetName (osEventFlagsId_t ef_id);
+ 
+/// Set the specified Event Flags.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \param[in]     flags         specifies the flags that shall be set.
+/// \return event flags after setting or error code if highest bit set.
+uint32_t osEventFlagsSet (osEventFlagsId_t ef_id, uint32_t flags);
+ 
+/// Clear the specified Event Flags.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \param[in]     flags         specifies the flags that shall be cleared.
+/// \return event flags before clearing or error code if highest bit set.
+uint32_t osEventFlagsClear (osEventFlagsId_t ef_id, uint32_t flags);
+ 
+/// Get the current Event Flags.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \return current event flags.
+uint32_t osEventFlagsGet (osEventFlagsId_t ef_id);
+ 
+/// Wait for one or more Event Flags to become signaled.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \param[in]     flags         specifies the flags to wait for.
+/// \param[in]     options       specifies flags options (osFlagsXxxx).
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return event flags before clearing or error code if highest bit set.
+uint32_t osEventFlagsWait (osEventFlagsId_t ef_id, uint32_t flags, uint32_t options, uint32_t timeout);
+ 
+/// Delete an Event Flags object.
+/// \param[in]     ef_id         event flags ID obtained by \ref osEventFlagsNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osEventFlagsDelete (osEventFlagsId_t ef_id);
+ 
+ 
+//  ==== Mutex Management Functions ====
+ 
+/// Create and Initialize a Mutex object.
+/// \param[in]     attr          mutex attributes; NULL: default values.
+/// \return mutex ID for reference by other functions or NULL in case of error.
+osMutexId_t osMutexNew (const osMutexAttr_t *attr);
+ 
+/// Get name of a Mutex object.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexNew.
+/// \return name as null-terminated string.
+const char *osMutexGetName (osMutexId_t mutex_id);
+ 
+/// Acquire a Mutex or timeout if it is locked.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexNew.
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMutexAcquire (osMutexId_t mutex_id, uint32_t timeout);
+ 
+/// Release a Mutex that was acquired by \ref osMutexAcquire.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMutexRelease (osMutexId_t mutex_id);
+ 
+/// Get Thread which owns a Mutex object.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexNew.
+/// \return thread ID of owner thread or NULL when mutex was not acquired.
+osThreadId_t osMutexGetOwner (osMutexId_t mutex_id);
+ 
+/// Delete a Mutex object.
+/// \param[in]     mutex_id      mutex ID obtained by \ref osMutexNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMutexDelete (osMutexId_t mutex_id);
+ 
+ 
+//  ==== Semaphore Management Functions ====
+ 
+/// Create and Initialize a Semaphore object.
+/// \param[in]     max_count     maximum number of available tokens.
+/// \param[in]     initial_count initial number of available tokens.
+/// \param[in]     attr          semaphore attributes; NULL: default values.
+/// \return semaphore ID for reference by other functions or NULL in case of error.
+osSemaphoreId_t osSemaphoreNew (uint32_t max_count, uint32_t initial_count, const osSemaphoreAttr_t *attr);
+ 
+/// Get name of a Semaphore object.
+/// \param[in]     semaphore_id  semaphore ID obtained by \ref osSemaphoreNew.
+/// \return name as null-terminated string.
+const char *osSemaphoreGetName (osSemaphoreId_t semaphore_id);
+ 
+/// Acquire a Semaphore token or timeout if no tokens are available.
+/// \param[in]     semaphore_id  semaphore ID obtained by \ref osSemaphoreNew.
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osSemaphoreAcquire (osSemaphoreId_t semaphore_id, uint32_t timeout);
+ 
+/// Release a Semaphore token up to the initial maximum count.
+/// \param[in]     semaphore_id  semaphore ID obtained by \ref osSemaphoreNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osSemaphoreRelease (osSemaphoreId_t semaphore_id);
+ 
+/// Get current Semaphore token count.
+/// \param[in]     semaphore_id  semaphore ID obtained by \ref osSemaphoreNew.
+/// \return number of tokens available.
+uint32_t osSemaphoreGetCount (osSemaphoreId_t semaphore_id);
+ 
+/// Delete a Semaphore object.
+/// \param[in]     semaphore_id  semaphore ID obtained by \ref osSemaphoreNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osSemaphoreDelete (osSemaphoreId_t semaphore_id);
+ 
+ 
+//  ==== Memory Pool Management Functions ====
+ 
+/// Create and Initialize a Memory Pool object.
+/// \param[in]     block_count   maximum number of memory blocks in memory pool.
+/// \param[in]     block_size    memory block size in bytes.
+/// \param[in]     attr          memory pool attributes; NULL: default values.
+/// \return memory pool ID for reference by other functions or NULL in case of error.
+osMemoryPoolId_t osMemoryPoolNew (uint32_t block_count, uint32_t block_size, const osMemoryPoolAttr_t *attr);
+ 
+/// Get name of a Memory Pool object.
+/// \param[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \return name as null-terminated string.
+const char *osMemoryPoolGetName (osMemoryPoolId_t mp_id);
+ 
+/// Allocate a memory block from a Memory Pool.
+/// \param[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \param[in]     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[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \param[in]     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[in]     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[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \return memory block size in bytes.
+uint32_t osMemoryPoolGetBlockSize (osMemoryPoolId_t mp_id);
+ 
+/// Get number of memory blocks used in a Memory Pool.
+/// \param[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \return number of memory blocks used.
+uint32_t osMemoryPoolGetCount (osMemoryPoolId_t mp_id);
+ 
+/// Get number of memory blocks available in a Memory Pool.
+/// \param[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \return number of memory blocks available.
+uint32_t osMemoryPoolGetSpace (osMemoryPoolId_t mp_id);
+ 
+/// Delete a Memory Pool object.
+/// \param[in]     mp_id         memory pool ID obtained by \ref osMemoryPoolNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMemoryPoolDelete (osMemoryPoolId_t mp_id);
+ 
+ 
+//  ==== Message Queue Management Functions ====
+ 
+/// Create and Initialize a Message Queue object.
+/// \param[in]     msg_count     maximum number of messages in queue.
+/// \param[in]     msg_size      maximum message size in bytes.
+/// \param[in]     attr          message queue attributes; NULL: default values.
+/// \return message queue ID for reference by other functions or NULL in case of error.
+osMessageQueueId_t osMessageQueueNew (uint32_t msg_count, uint32_t msg_size, const osMessageQueueAttr_t *attr);
+ 
+/// Get name of a Message Queue object.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return name as null-terminated string.
+const char *osMessageQueueGetName (osMessageQueueId_t mq_id);
+ 
+/// Put a Message into a Queue or timeout if Queue is full.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \param[in]     msg_ptr       pointer to buffer with message to put into a queue.
+/// \param[in]     msg_prio      message priority.
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMessageQueuePut (osMessageQueueId_t mq_id, const void *msg_ptr, uint8_t msg_prio, uint32_t timeout);
+ 
+/// Get a Message from a Queue or timeout if Queue is empty.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \param[out]    msg_ptr       pointer to buffer for message to get from a queue.
+/// \param[out]    msg_prio      pointer to buffer for message priority or NULL.
+/// \param[in]     timeout       \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMessageQueueGet (osMessageQueueId_t mq_id, void *msg_ptr, uint8_t *msg_prio, uint32_t timeout);
+ 
+/// Get maximum number of messages in a Message Queue.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return maximum number of messages.
+uint32_t osMessageQueueGetCapacity (osMessageQueueId_t mq_id);
+ 
+/// Get maximum message size in a Memory Pool.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return maximum message size in bytes.
+uint32_t osMessageQueueGetMsgSize (osMessageQueueId_t mq_id);
+ 
+/// Get number of queued messages in a Message Queue.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return number of queued messages.
+uint32_t osMessageQueueGetCount (osMessageQueueId_t mq_id);
+ 
+/// Get number of available slots for messages in a Message Queue.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return number of available slots for messages.
+uint32_t osMessageQueueGetSpace (osMessageQueueId_t mq_id);
+ 
+/// Reset a Message Queue to initial empty state.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMessageQueueReset (osMessageQueueId_t mq_id);
+ 
+/// Delete a Message Queue object.
+/// \param[in]     mq_id         message queue ID obtained by \ref osMessageQueueNew.
+/// \return status code that indicates the execution status of the function.
+osStatus_t osMessageQueueDelete (osMessageQueueId_t mq_id);
+ 
+ 
+#ifdef  __cplusplus
+}
+#endif
+ 
+#endif  // CMSIS_OS2_H_
diff --git a/RTOS2/Include/os_tick.h b/RTOS2/Include/os_tick.h
new file mode 100644
index 0000000..8f7cdf6
--- /dev/null
+++ b/RTOS2/Include/os_tick.h
@@ -0,0 +1,71 @@
+/**************************************************************************//**
+ * @file     os_tick.h
+ * @brief    CMSIS OS Tick header file
+ * @version  V1.0.1
+ * @date     24. November 2017
+ ******************************************************************************/
+/*
+ * Copyright (c) 2017-2017 ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OS_TICK_H
+#define OS_TICK_H
+
+#include <stdint.h>
+
+/// IRQ Handler.
+#ifndef IRQHANDLER_T
+#define IRQHANDLER_T
+typedef void (*IRQHandler_t) (void);
+#endif
+
+/// Setup OS Tick timer to generate periodic RTOS Kernel Ticks
+/// \param[in]     freq         tick frequency in Hz
+/// \param[in]     handler      tick IRQ handler
+/// \return 0 on success, -1 on error.
+int32_t  OS_Tick_Setup (uint32_t freq, IRQHandler_t handler);
+
+/// Enable OS Tick timer interrupt
+void     OS_Tick_Enable (void);
+
+/// Disable OS Tick timer interrupt
+void     OS_Tick_Disable (void);
+
+/// Acknowledge execution of OS Tick timer interrupt
+void     OS_Tick_AcknowledgeIRQ (void);
+
+/// Get OS Tick timer IRQ number
+/// \return OS Tick IRQ number
+int32_t  OS_Tick_GetIRQn (void);
+
+/// Get OS Tick timer clock frequency
+/// \return OS Tick timer clock frequency in Hz
+uint32_t OS_Tick_GetClock (void);
+
+/// Get OS Tick timer interval reload value
+/// \return OS Tick timer interval reload value
+uint32_t OS_Tick_GetInterval (void);
+
+/// Get OS Tick timer counter value
+/// \return OS Tick timer counter value
+uint32_t OS_Tick_GetCount (void);
+
+/// Get OS Tick timer overflow status
+/// \return OS Tick overflow status (1 - overflow, 0 - no overflow).
+uint32_t OS_Tick_GetOverflow (void);
+
+#endif  /* OS_TICK_H */