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diff --git a/KSDK_1.2.0/platform/hal/inc/fsl_ewm_hal.h b/KSDK_1.2.0/platform/hal/inc/fsl_ewm_hal.h
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+/*
+ * Copyright (c) 2013 - 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form 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.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 __FSL_EWM_HAL_H__
+#define __FSL_EWM_HAL_H__
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include "fsl_device_registers.h"
+#if FSL_FEATURE_SOC_EWM_COUNT
+
+/*! 
+ * @addtogroup ewm_hal
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ *******************************************************************************/
+/*! 
+ * @brief Data structure for EWM initialize
+ *
+ * This structure is used when initializing the EWM.
+ * @internal gui name="Basic configuration" id="ewmCfg"
+ */
+typedef struct _ewm_config
+{
+    bool ewmEnable;   	       /*!< Enable EWM module @internal gui name="Enable EWM module" id="EnableModule" */
+    bool ewmInEnable;  	       /*!< Enable EWM_in input enable @internal gui name="EWM_in input" id="Input" */
+    bool ewmInAssertLogic;     /*!< Set EWM_in signal assertion state @internal gui name="EWM_in signal assertion" id="Assertion" */
+    bool intEnable;   	       /*!< Enable EWM interrupt enable @internal gui name="EWM interrupt" id="Interrupt" */
+#if FSL_FEATURE_EWM_HAS_PRESCALER
+    uint8_t ewmPrescalerValue; /*!< Set EWM prescaler value @internal gui name="Prescaler" id="Prescaler" */
+#endif    
+    uint8_t ewmCmpLowValue;    /*!< Set EWM compare low register value @internal gui name="Compare low register value" id="LowValue" */
+    uint8_t ewmCmpHighValue;   /*!< Set EWM compare high register value, the maximum value should be 0xfe otherwise the counter will never expire @internal gui name="Compare high register value" id="HighValue" */
+}ewm_config_t;
+
+/*! @brief ewm status return codes.*/
+typedef enum _ewm_status {
+    kStatus_EWM_Success         = 0x0U, /*!< EWM operation Succeed      */
+    kStatus_EWM_Fail            = 0x01, /*!< EWM operation Failed       */
+    kStatus_EWM_NotInitlialized = 0x2U, /*!< EWM is not initialized yet */
+    kStatus_EWM_NullArgument    = 0x3U, /*!< Argument is NULL           */
+}ewm_status_t;
+
+/*******************************************************************************
+ ** Variables
+ *******************************************************************************/
+
+/*******************************************************************************
+ * API
+ *******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @brief Enable the EWM.
+ * 
+ * This function checks whether the EWM is enabled.
+ *
+ * @param base The EWM peripheral base address
+ */
+static inline void EWM_HAL_Enable(EWM_Type * base)
+{
+    EWM_BWR_CTRL_EWMEN(base, 1U);
+}
+
+/*!
+ * @brief Enable the EWM.
+ * 
+ * This function checks whether the EWM is enabled.
+ *
+ * @param base The EWM peripheral base address
+ */
+static inline void EWM_HAL_Disable(EWM_Type * base)
+{
+    EWM_BWR_CTRL_EWMEN(base, 0U);
+}
+
+/*!
+ * @brief Checks whether the EWM is enabled.
+ * 
+ * This function checks whether the EWM is enabled.
+ *
+ * @param base The EWM peripheral base address
+ * @return State of the module
+ * @retval false means EWM is disabled
+ * @retval true means WODG is enabled
+ */
+static inline bool EWM_HAL_IsEnable(EWM_Type * base)
+{
+    return ((bool)EWM_BRD_CTRL_EWMEN(base));
+}
+
+/*!
+ * @brief Enable/Disable EWM interrupt.
+ * 
+ * This function sets EWM enable/disable.
+ *
+ * @param base The EWM peripheral base address
+ * @param enable Set EWM interrupt enable/disable
+ */
+static inline void EWM_HAL_SetIntCmd(EWM_Type * base, bool enable)
+{
+   EWM_BWR_CTRL_INTEN(base, enable);
+}
+
+/*!
+ * @brief Set EWM compare low register value.
+ * 
+ * This function sets EWM compare low register value and defines the minimum cycles to service EWM,
+ * when counter value is greater than or equal to ewm compare low register value, refresh EWM can be successful,
+ * and this register is write once, one more write will cause bus fault.
+ *
+ * @param base The EWM peripheral base address
+ * @param minServiceCycles The EWM compare low register value 
+ */
+static inline void EWM_HAL_SetCmpLowRegValue(EWM_Type * base, uint8_t minServiceCycles)
+{
+    EWM_WR_CMPL(base, minServiceCycles);
+}
+
+/*!
+ * @brief Set EWM compare high register value.
+ * 
+ * This function sets EWM compare high register value and defines the maximum cycles to service EWM,
+ * when counter value is less than or equal to ewm compare high register value, refresh EWM can be successful,
+ * the compare high register value must be greater than compare low register value,
+ * and this register is write once, one more write will cause bus fault.
+ *
+ * @param base The EWM peripheral base address
+ * @param maxServiceCycles The EWM compare low register value 
+ */
+static inline void EWM_HAL_SetCmpHighRegValue(EWM_Type * base, uint8_t maxServiceCycles)
+{
+    EWM_WR_CMPH(base, maxServiceCycles);
+}
+
+/*!
+ * @brief Service EWM.
+ * 
+ * This function reset EWM counter to zero and 
+ * the period of writing the frist value and the second value should be within 15 bus cycles.
+ *
+ * @param base The EWM peripheral base address
+*/
+static inline void EWM_HAL_Refresh(EWM_Type * base)
+{
+    EWM_WR_SERV(base, (uint8_t)0xB4U);
+    EWM_WR_SERV(base, (uint8_t)0x2CU);
+}
+
+/*!
+ * @brief Config EWM control register.
+ * 
+ * This function configures EWM control register,
+ * EWM enable bitfeild, EWM ASSIN bitfeild and EWM INPUT enable bitfeild are WRITE ONCE, one more write will cause bus fault.
+ *
+ * @param base The EWM peripheral base address
+ * @param ewmConfigPtr config EWM CTRL register
+ */
+void EWM_HAL_SetConfig(EWM_Type * base, const ewm_config_t *ewmConfigPtr);
+
+/*!
+ * @brief Restores the EWM module to reset value.
+ *
+ * This function restores the EWM module to reset value.
+ *
+ * @param base The EWM peripheral base address
+ */
+void EWM_HAL_Init(EWM_Type * base);
+
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*! @}*/
+
+#endif
+#endif /* __FSL_EWM_HAL_H__*/
+/*******************************************************************************
+ * EOF
+ *******************************************************************************/
+