major project reorg, move library one level up

46 files changed, 7323 insertions, 0 deletions

diff --git a/watch-library/hal/include/hal_adc_sync.h b/watch-library/hal/include/hal_adc_sync.h
new file mode 100644
index 00000000..1b66e3df
--- /dev/null
+++ b/watch-library/hal/include/hal_adc_sync.h
@@ -0,0 +1,277 @@
+/**
+ * \file
+ *
+ * \brief ADC functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_ADC_SYNC_H_INCLUDED
+#define _HAL_ADC_SYNC_H_INCLUDED
+
+#include <hpl_adc_sync.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_adc_sync
+ *
+ * @{
+ */
+
+/**
+ * \brief ADC descriptor
+ *
+ * The ADC descriptor forward declaration.
+ */
+struct adc_sync_descriptor;
+
+/**
+ * \brief ADC descriptor
+ */
+struct adc_sync_descriptor {
+	/** ADC device */
+	struct _adc_sync_device device;
+};
+
+/**
+ * \brief Initialize ADC
+ *
+ * This function initializes the given ADC descriptor.
+ * It checks if the given hardware is not initialized and if the given hardware
+ * is permitted to be initialized.
+ *
+ * \param[out] descr An ADC descriptor to initialize
+ * \param[in] hw     The pointer to hardware instance
+ * \param[in] func   The pointer to a set of functions pointers
+ *
+ * \return Initialization status.
+ */
+int32_t adc_sync_init(struct adc_sync_descriptor *const descr, void *const hw, void *const func);
+
+/**
+ * \brief Deinitialize ADC
+ *
+ * This function deinitializes the given ADC descriptor.
+ * It checks if the given hardware is initialized and if the given hardware is
+ * permitted to be deinitialized.
+ *
+ * \param[in] descr An ADC descriptor to deinitialize
+ *
+ * \return De-initialization status.
+ */
+int32_t adc_sync_deinit(struct adc_sync_descriptor *const descr);
+
+/**
+ * \brief Enable ADC
+ *
+ * Use this function to set the ADC peripheral to enabled state.
+ *
+ * \param[in] descr    Pointer to the ADC descriptor
+ * \param[in] channel  Channel number
+ *
+ * \return Operation status
+ *
+ */
+int32_t adc_sync_enable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel);
+
+/**
+ * \brief Disable ADC
+ *
+ * Use this function to set the ADC peripheral to disabled state.
+ *
+ * \param[in] descr   Pointer to the ADC descriptor
+ * \param[in] channel Channel number
+ *
+ * \return Operation status
+ *
+ */
+int32_t adc_sync_disable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel);
+
+/**
+ * \brief Read data from ADC
+ *
+ * \param[in] descr    The pointer to the ADC descriptor
+ * \param[in] channel  Channel number
+ * \param[in] buf      A buffer to read data to
+ * \param[in] length   The size of a buffer
+ *
+ * \return The number of bytes read.
+ */
+int32_t adc_sync_read_channel(struct adc_sync_descriptor *const descr, const uint8_t channel, uint8_t *const buffer,
+                              const uint16_t length);
+
+/**
+ * \brief Set ADC reference source
+ *
+ * This function sets ADC reference source.
+ *
+ * \param[in] descr     The pointer to the ADC descriptor
+ * \param[in] reference A reference source to set
+ *
+ * \return Status of the ADC reference source setting.
+ */
+int32_t adc_sync_set_reference(struct adc_sync_descriptor *const descr, const adc_reference_t reference);
+
+/**
+ * \brief Set ADC resolution
+ *
+ * This function sets ADC resolution.
+ *
+ * \param[in] descr      The pointer to the ADC descriptor
+ * \param[in] resolution A resolution to set
+ *
+ * \return Status of the ADC resolution setting.
+ */
+int32_t adc_sync_set_resolution(struct adc_sync_descriptor *const descr, const adc_resolution_t resolution);
+
+/**
+ * \brief Set ADC input source of a channel
+ *
+ * This function sets ADC positive and negative input sources.
+ *
+ * \param[in] descr     The pointer to the ADC descriptor
+ * \param[in] pos_input A positive input source to set
+ * \param[in] neg_input A negative input source to set
+ * \param[in] channel   Channel number
+ *
+ * \return Status of the ADC channels setting.
+ */
+int32_t adc_sync_set_inputs(struct adc_sync_descriptor *const descr, const adc_pos_input_t pos_input,
+                            const adc_neg_input_t neg_input, const uint8_t channel);
+
+/**
+ * \brief Set ADC conversion mode
+ *
+ * This function sets ADC conversion mode.
+ *
+ * \param[in] descr The pointer to the ADC descriptor
+ * \param[in] mode  A conversion mode to set
+ *
+ * \return Status of the ADC conversion mode setting.
+ */
+int32_t adc_sync_set_conversion_mode(struct adc_sync_descriptor *const descr, const enum adc_conversion_mode mode);
+
+/**
+ * \brief Set ADC differential mode
+ *
+ * This function sets ADC differential mode.
+ *
+ * \param[in] descr   The pointer to the ADC descriptor
+ * \param[in] channel Channel number
+ * \param[in] mode    A differential mode to set
+ *
+ * \return Status of the ADC differential mode setting.
+ */
+int32_t adc_sync_set_channel_differential_mode(struct adc_sync_descriptor *const descr, const uint8_t channel,
+                                               const enum adc_differential_mode mode);
+
+/**
+ * \brief Set ADC channel gain
+ *
+ * This function sets ADC channel gain.
+ *
+ * \param[in] descr   The pointer to the ADC descriptor
+ * \param[in] channel Channel number
+ * \param[in] gain    A gain to set
+ *
+ * \return Status of the ADC gain setting.
+ */
+int32_t adc_sync_set_channel_gain(struct adc_sync_descriptor *const descr, const uint8_t channel,
+                                  const adc_gain_t gain);
+
+/**
+ * \brief Set ADC window mode
+ *
+ * This function sets ADC window mode.
+ *
+ * \param[in] descr The pointer to the ADC descriptor
+ * \param[in] mode  A window mode to set
+ *
+ * \return Status of the ADC window mode setting.
+ */
+int32_t adc_sync_set_window_mode(struct adc_sync_descriptor *const descr, const adc_window_mode_t mode);
+
+/**
+ * \brief Set ADC thresholds
+ *
+ * This function sets ADC positive and negative thresholds.
+ *
+ * \param[in] descr         The pointer to the ADC descriptor
+ * \param[in] low_threshold A lower thresholds to set
+ * \param[in] up_threshold  An upper thresholds to set
+ *
+ * \return Status of the ADC thresholds setting.
+ */
+int32_t adc_sync_set_thresholds(struct adc_sync_descriptor *const descr, const adc_threshold_t low_threshold,
+                                const adc_threshold_t up_threshold);
+
+/**
+ * \brief Retrieve threshold state
+ *
+ * This function retrieves ADC threshold state.
+ *
+ * \param[in] descr  The pointer to the ADC descriptor
+ * \param[out] state The threshold state
+ *
+ * \return The state of ADC thresholds state retrieving.
+ */
+int32_t adc_sync_get_threshold_state(const struct adc_sync_descriptor *const descr,
+                                     adc_threshold_status_t *const           state);
+
+/**
+ * \brief Check if conversion is complete
+ *
+ * This function checks if the ADC has finished the conversion.
+ *
+ * \param[in] descr   The pointer to the ADC descriptor
+ * \param[in] channel Channel number
+ *
+ * \return The status of ADC conversion completion checking.
+ * \retval 1 The conversion is complete
+ * \retval 0 The conversion is not complete
+ */
+int32_t adc_sync_is_channel_conversion_complete(const struct adc_sync_descriptor *const descr, const uint8_t channel);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t adc_sync_get_version(void);
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <hpl_missing_features.h>
+
+#endif /* _HAL_ADC_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_atomic.h b/watch-library/hal/include/hal_atomic.h
new file mode 100644
index 00000000..82151fc5
--- /dev/null
+++ b/watch-library/hal/include/hal_atomic.h
@@ -0,0 +1,120 @@
+/**
+ * \file
+ *
+ * \brief Critical sections related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_ATOMIC_H_INCLUDED
+#define _HAL_ATOMIC_H_INCLUDED
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_helper_atomic
+ *
+ *@{
+ */
+
+/**
+ * \brief Type for the register holding global interrupt enable flag
+ */
+typedef uint32_t hal_atomic_t;
+
+/**
+ * \brief Helper macro for entering critical sections
+ *
+ * This macro is recommended to be used instead of a direct call
+ * hal_enterCritical() function to enter critical
+ * sections. No semicolon is required after the macro.
+ *
+ * \section atomic_usage Usage Example
+ * \code
+ * CRITICAL_SECTION_ENTER()
+ * Critical code
+ * CRITICAL_SECTION_LEAVE()
+ * \endcode
+ */
+#define CRITICAL_SECTION_ENTER()                                                                                       \
+	{                                                                                                                  \
+		volatile hal_atomic_t __atomic;                                                                                \
+		atomic_enter_critical(&__atomic);
+
+/**
+ * \brief Helper macro for leaving critical sections
+ *
+ * This macro is recommended to be used instead of a direct call
+ * hal_leaveCritical() function to leave critical
+ * sections. No semicolon is required after the macro.
+ */
+#define CRITICAL_SECTION_LEAVE()                                                                                       \
+	atomic_leave_critical(&__atomic);                                                                                  \
+	}
+
+/**
+ * \brief Disable interrupts, enter critical section
+ *
+ * Disables global interrupts. Supports nested critical sections,
+ * so that global interrupts are only re-enabled
+ * upon leaving the outermost nested critical section.
+ *
+ * \param[out] atomic The pointer to a variable to store the value of global
+ * interrupt enable flag
+ */
+void atomic_enter_critical(hal_atomic_t volatile *atomic);
+
+/**
+ * \brief Exit atomic section
+ *
+ * Enables global interrupts. Supports nested critical sections,
+ * so that global interrupts are only re-enabled
+ * upon leaving the outermost nested critical section.
+ *
+ * \param[in] atomic The pointer to a variable, which stores the latest stored
+ * value of the global interrupt enable flag
+ */
+void atomic_leave_critical(hal_atomic_t volatile *atomic);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t atomic_get_version(void);
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_ATOMIC_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_calendar.h b/watch-library/hal/include/hal_calendar.h
new file mode 100644
index 00000000..26949a57
--- /dev/null
+++ b/watch-library/hal/include/hal_calendar.h
@@ -0,0 +1,159 @@
+/**
+ * \file
+ *
+ * \brief Generic CALENDAR functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_CALENDER_H_INCLUDED
+#define _HAL_CALENDER_H_INCLUDED
+
+#include "hpl_calendar.h"
+#include <utils_list.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_calendar_async
+ *
+ *@{
+ */
+
+/** \brief Prototype of callback on alarm match
+ *  \param calendar Pointer to the HAL Calendar instance.
+ */
+typedef void (*calendar_cb_alarm_t)(struct calendar_descriptor *const calendar);
+
+/** \brief Struct for alarm time
+ */
+struct calendar_alarm {
+	struct list_element    elem;
+	struct _calendar_alarm cal_alarm;
+	calendar_cb_alarm_t    callback;
+};
+
+/** \brief Initialize the Calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param hw       Pointer to the hardware instance.
+ *  \return Operation status of init
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_init(struct calendar_descriptor *const calendar, const void *hw);
+
+/** \brief Reset the Calendar HAL instance and hardware
+ *
+ *  Reset Calendar instance to hardware defaults.
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \return Operation status of reset.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_deinit(struct calendar_descriptor *const calendar);
+
+/** \brief Enable the Calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \return Operation status of init
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_enable(struct calendar_descriptor *const calendar);
+
+/** \brief Disable the Calendar HAL instance and hardware
+ *
+ *  Disable Calendar instance to hardware defaults.
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \return Operation status of reset.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_disable(struct calendar_descriptor *const calendar);
+
+/** \brief Configure the base year for calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param p_base_year The desired base year.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_set_baseyear(struct calendar_descriptor *const calendar, const uint32_t p_base_year);
+
+/** \brief Configure the time for calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param p_calendar_time Pointer to the time configuration.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_set_time(struct calendar_descriptor *const calendar, struct calendar_time *const p_calendar_time);
+
+/** \brief Configure the date for calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param p_calendar_date Pointer to the date configuration.
+ *  \return Operation status of time set.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_set_date(struct calendar_descriptor *const calendar, struct calendar_date *const p_calendar_date);
+
+/** \brief Get the time for calendar HAL instance and hardware
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param date_time Pointer to the value that will be filled with the current time.
+ *  \return Operation status of time retrieve.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_get_date_time(struct calendar_descriptor *const calendar, struct calendar_date_time *const date_time);
+
+/** \brief Config the alarm time for calendar HAL instance and hardware
+ *
+ *  Set the alarm time to calendar instance. If the callback is NULL, remove
+ *  the alarm if the alarm is already added, otherwise, ignore the alarm.
+ *
+ *  \param calendar Pointer to the HAL Calendar instance.
+ *  \param alarm Pointer to the configuration.
+ *  \param callback Pointer to the callback function.
+ *  \return Operation status of alarm time set.
+ *  \retval 0       Completed successfully.
+ */
+int32_t calendar_set_alarm(struct calendar_descriptor *const calendar, struct calendar_alarm *const alarm,
+                           calendar_cb_alarm_t callback);
+
+/** \brief Retrieve the current driver version
+ *  \return Current driver version.
+ */
+uint32_t calendar_get_version(void);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_CALENDER_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_delay.h b/watch-library/hal/include/hal_delay.h
new file mode 100644
index 00000000..9d4aa5c1
--- /dev/null
+++ b/watch-library/hal/include/hal_delay.h
@@ -0,0 +1,89 @@
+/**
+ * \file
+ *
+ * \brief HAL delay related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#include <hpl_irq.h>
+#include <hpl_reset.h>
+#include <hpl_sleep.h>
+
+#ifndef _HAL_DELAY_H_INCLUDED
+#define _HAL_DELAY_H_INCLUDED
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_delay Delay Driver
+ *
+ *@{
+ */
+
+/**
+ * \brief Initialize Delay driver
+ *
+ * \param[in] hw The pointer to hardware instance
+ */
+void delay_init(void *const hw);
+
+/**
+ * \brief Perform delay in us
+ *
+ * This function performs delay for the given amount of microseconds.
+ *
+ * \param[in] us The amount delay in us
+ */
+void delay_us(const uint16_t us);
+
+/**
+ * \brief Perform delay in ms
+ *
+ * This function performs delay for the given amount of milliseconds.
+ *
+ * \param[in] ms The amount delay in ms
+ */
+void delay_ms(const uint16_t ms);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t delay_get_version(void);
+
+/**@}*/
+#ifdef __cplusplus
+}
+#endif
+#endif /* _HAL_DELAY_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_ext_irq.h b/watch-library/hal/include/hal_ext_irq.h
new file mode 100644
index 00000000..a7c26005
--- /dev/null
+++ b/watch-library/hal/include/hal_ext_irq.h
@@ -0,0 +1,118 @@
+/**
+ * \file
+ *
+ * \brief External interrupt functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_EXT_IRQ_H_INCLUDED
+#define _HAL_EXT_IRQ_H_INCLUDED
+
+#include <hpl_ext_irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_ext_irq
+ *
+ * @{
+ */
+
+/**
+ * \brief External IRQ callback type
+ */
+typedef void (*ext_irq_cb_t)(void);
+
+/**
+ * \brief Initialize external IRQ component, if any
+ *
+ * \return Initialization status.
+ * \retval -1 External IRQ module is already initialized
+ * \retval 0 The initialization is completed successfully
+ */
+int32_t ext_irq_init(void);
+
+/**
+ * \brief Deinitialize external IRQ, if any
+ *
+ * \return De-initialization status.
+ * \retval -1 External IRQ module is already deinitialized
+ * \retval 0 The de-initialization is completed successfully
+ */
+int32_t ext_irq_deinit(void);
+
+/**
+ * \brief Register callback for the given external interrupt
+ *
+ * \param[in] pin Pin to enable external IRQ on
+ * \param[in] cb Callback function
+ *
+ * \return Registration status.
+ * \retval -1 Passed parameters were invalid
+ * \retval 0 The callback registration is completed successfully
+ */
+int32_t ext_irq_register(const uint32_t pin, ext_irq_cb_t cb);
+
+/**
+ * \brief Enable external IRQ
+ *
+ * \param[in] pin Pin to enable external IRQ on
+ *
+ * \return Enabling status.
+ * \retval -1 Passed parameters were invalid
+ * \retval 0 The enabling is completed successfully
+ */
+int32_t ext_irq_enable(const uint32_t pin);
+
+/**
+ * \brief Disable external IRQ
+ *
+ * \param[in] pin Pin to enable external IRQ on
+ *
+ * \return Disabling status.
+ * \retval -1 Passed parameters were invalid
+ * \retval 0 The disabling is completed successfully
+ */
+int32_t ext_irq_disable(const uint32_t pin);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t ext_irq_get_version(void);
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_EXT_IRQ_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_gpio.h b/watch-library/hal/include/hal_gpio.h
new file mode 100644
index 00000000..fbfa2d4a
--- /dev/null
+++ b/watch-library/hal/include/hal_gpio.h
@@ -0,0 +1,201 @@
+/**
+ * \file
+ *
+ * \brief Port
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ */
+#ifndef _HAL_GPIO_INCLUDED_
+#define _HAL_GPIO_INCLUDED_
+
+#include <hpl_gpio.h>
+#include <utils_assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Set gpio pull mode
+ *
+ * Set pin pull mode, non existing pull modes throws an fatal assert
+ *
+ * \param[in] pin       The pin number for device
+ * \param[in] pull_mode GPIO_PULL_DOWN = Pull pin low with internal resistor
+ *                      GPIO_PULL_UP   = Pull pin high with internal resistor
+ *                      GPIO_PULL_OFF  = Disable pin pull mode
+ */
+static inline void gpio_set_pin_pull_mode(const uint8_t pin, const enum gpio_pull_mode pull_mode)
+{
+	_gpio_set_pin_pull_mode((enum gpio_port)GPIO_PORT(pin), pin & 0x1F, pull_mode);
+}
+
+/**
+ * \brief Set pin function
+ *
+ * Select which function a pin will be used for
+ *
+ * \param[in] pin       The pin number for device
+ * \param[in] function  The pin function is given by a 32-bit wide bitfield
+ *                      found in the header files for the device
+ *
+ */
+static inline void gpio_set_pin_function(const uint32_t pin, uint32_t function)
+{
+	_gpio_set_pin_function(pin, function);
+}
+
+/**
+ * \brief Set port data direction
+ *
+ * Select if the pin data direction is input, output or disabled.
+ * If disabled state is not possible, this function throws an assert.
+ *
+ * \param[in] port      Ports are grouped into groups of maximum 32 pins,
+ *                      GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask      Bit mask where 1 means apply direction setting to the
+ *                      corresponding pin
+ * \param[in] direction GPIO_DIRECTION_IN  = Data direction in
+ *                      GPIO_DIRECTION_OUT = Data direction out
+ *                      GPIO_DIRECTION_OFF = Disables the pin
+ *                      (low power state)
+ */
+static inline void gpio_set_port_direction(const enum gpio_port port, const uint32_t mask,
+                                           const enum gpio_direction direction)
+{
+	_gpio_set_direction(port, mask, direction);
+}
+
+/**
+ * \brief Set gpio data direction
+ *
+ * Select if the pin data direction is input, output or disabled.
+ * If disabled state is not possible, this function throws an assert.
+ *
+ * \param[in] pin       The pin number for device
+ * \param[in] direction GPIO_DIRECTION_IN  = Data direction in
+ *                      GPIO_DIRECTION_OUT = Data direction out
+ *                      GPIO_DIRECTION_OFF = Disables the pin
+ *                      (low power state)
+ */
+static inline void gpio_set_pin_direction(const uint8_t pin, const enum gpio_direction direction)
+{
+	_gpio_set_direction((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin), direction);
+}
+
+/**
+ * \brief Set port level
+ *
+ * Sets output level on the pins defined by the bit mask
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask  Bit mask where 1 means apply port level to the corresponding
+ *                  pin
+ * \param[in] level true  = Pin levels set to "high" state
+ *                  false = Pin levels set to "low" state
+ */
+static inline void gpio_set_port_level(const enum gpio_port port, const uint32_t mask, const bool level)
+{
+	_gpio_set_level(port, mask, level);
+}
+
+/**
+ * \brief Set gpio level
+ *
+ * Sets output level on a pin
+ *
+ * \param[in] pin       The pin number for device
+ * \param[in] level true  = Pin level set to "high" state
+ *                  false = Pin level set to "low" state
+ */
+static inline void gpio_set_pin_level(const uint8_t pin, const bool level)
+{
+	_gpio_set_level((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin), level);
+}
+
+/**
+ * \brief Toggle out level on pins
+ *
+ * Toggle the pin levels on pins defined by bit mask
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask  Bit mask where 1 means toggle pin level to the corresponding
+ *                  pin
+ */
+static inline void gpio_toggle_port_level(const enum gpio_port port, const uint32_t mask)
+{
+	_gpio_toggle_level(port, mask);
+}
+
+/**
+ * \brief Toggle output level on pin
+ *
+ * Toggle the pin levels on pins defined by bit mask
+ *
+ * \param[in] pin       The pin number for device
+ */
+static inline void gpio_toggle_pin_level(const uint8_t pin)
+{
+	_gpio_toggle_level((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin));
+}
+
+/**
+ * \brief Get input level on pins
+ *
+ * Read the input level on pins connected to a port
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ */
+static inline uint32_t gpio_get_port_level(const enum gpio_port port)
+{
+	return _gpio_get_level(port);
+}
+
+/**
+ * \brief Get level on pin
+ *
+ * Reads the level on pins connected to a port
+ *
+ * \param[in] pin       The pin number for device
+ */
+static inline bool gpio_get_pin_level(const uint8_t pin)
+{
+	return (bool)(_gpio_get_level((enum gpio_port)GPIO_PORT(pin)) & (0x01U << GPIO_PIN(pin)));
+}
+/**
+ * \brief Get current driver version
+ */
+uint32_t gpio_get_version(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hal_i2c_m_sync.h b/watch-library/hal/include/hal_i2c_m_sync.h
new file mode 100644
index 00000000..24afd639
--- /dev/null
+++ b/watch-library/hal/include/hal_i2c_m_sync.h
@@ -0,0 +1,244 @@
+/**
+ * \file
+ *
+ * \brief Sync I2C Hardware Abstraction Layer(HAL) declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_I2C_M_SYNC_H_INCLUDED
+#define _HAL_I2C_M_SYNC_H_INCLUDED
+
+#include <hpl_i2c_m_sync.h>
+#include <hal_io.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_i2c_master_sync
+ *
+ * @{
+ */
+
+#define I2C_M_MAX_RETRY 1
+
+/**
+ * \brief I2C descriptor structure, embed i2c_device & i2c_interface
+ */
+struct i2c_m_sync_desc {
+	struct _i2c_m_sync_device device;
+	struct io_descriptor      io;
+	uint16_t                  slave_addr;
+};
+
+/**
+ * \brief Initialize synchronous I2C interface
+ *
+ * This function initializes the given I/O descriptor to be used as a
+ * synchronous I2C interface descriptor.
+ * It checks if the given hardware is not initialized and if the given hardware
+ * is permitted to be initialized.
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status.
+ * \retval -1 The passed parameters were invalid or the interface is already initialized
+ * \retval 0 The initialization is completed successfully
+ */
+int32_t i2c_m_sync_init(struct i2c_m_sync_desc *i2c, void *hw);
+
+/**
+ * \brief Deinitialize I2C interface
+ *
+ * This function deinitializes the given I/O descriptor.
+ * It checks if the given hardware is initialized and if the given hardware is permitted to be deinitialized.
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ *
+ * \return Uninitialization status.
+ * \retval -1 The passed parameters were invalid or the interface is already deinitialized
+ * \retval 0 The de-initialization is completed successfully
+ */
+int32_t i2c_m_sync_deinit(struct i2c_m_sync_desc *i2c);
+
+/**
+ * \brief Set the slave device address
+ *
+ * This function sets the next transfer target slave I2C device address.
+ * It takes no effect to any already started access.
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] addr The slave address to access
+ * \param[in] addr_len The slave address length, can be I2C_M_TEN or I2C_M_SEVEN
+ *
+ * \return Masked slave address. The mask is a maximum 10-bit address, and 10th
+ *         bit is set if a 10-bit address is used
+ */
+int32_t i2c_m_sync_set_slaveaddr(struct i2c_m_sync_desc *i2c, int16_t addr, int32_t addr_len);
+
+/**
+ * \brief Set baudrate
+ *
+ * This function sets the I2C device to the specified baudrate.
+ * It only takes effect when the hardware is disabled.
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] clkrate Unused parameter. Should always be 0
+ * \param[in] baudrate The baudrate value set to master
+ *
+ * \return Whether successfully set the baudrate
+ * \retval -1 The passed parameters were invalid or the device is already enabled
+ * \retval 0 The baudrate set is completed successfully
+ */
+int32_t i2c_m_sync_set_baudrate(struct i2c_m_sync_desc *i2c, uint32_t clkrate, uint32_t baudrate);
+
+/**
+ * \brief Sync version of enable hardware
+ *
+ * This function enables the I2C device, and then waits for this enabling operation to be done
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ *
+ * \return Whether successfully enable the device
+ * \retval -1 The passed parameters were invalid or the device enable failed
+ * \retval 0 The hardware enabling is completed successfully
+ */
+int32_t i2c_m_sync_enable(struct i2c_m_sync_desc *i2c);
+
+/**
+ * \brief Sync version of disable hardware
+ *
+ * This function disables the I2C device and then waits for this disabling operation to be done
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ *
+ * \return Whether successfully disable the device
+ * \retval -1 The passed parameters were invalid or the device disable failed
+ * \retval 0 The hardware disabling is completed successfully
+ */
+int32_t i2c_m_sync_disable(struct i2c_m_sync_desc *i2c);
+
+/**
+ * \brief Sync version of write command to I2C slave
+ *
+ * This function will write the value to a specified register in the I2C slave device and
+ * then wait for this operation to be done.
+ *
+ * The sequence of this routine is
+ * sta->address(write)->ack->reg address->ack->resta->address(write)->ack->reg value->nack->stt
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] reg The internal address/register of the I2C slave device
+ * \param[in] buffer The buffer holding data to write to the I2C slave device
+ * \param[in] length The length (in bytes) to write to the I2C slave device
+ *
+ * \return Whether successfully write to the device
+ * \retval <0 The passed parameters were invalid or write fail
+ * \retval 0 Writing to register is completed successfully
+ */
+int32_t i2c_m_sync_cmd_write(struct i2c_m_sync_desc *i2c, uint8_t reg, uint8_t *buffer, uint8_t length);
+
+/**
+ * \brief Sync version of read register value from I2C slave
+ *
+ * This function will read a byte value from a specified register in the I2C slave device and
+ * then wait for this operation to be done.
+ *
+ * The sequence of this routine is
+ * sta->address(write)->ack->reg address->ack->resta->address(read)->ack->reg value->nack->stt
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] reg The internal address/register of the I2C slave device
+ * \param[in] buffer The buffer to hold the read data from the I2C slave device
+ * \param[in] length The length (in bytes) to read from the I2C slave device
+ *
+ * \return Whether successfully read from the device
+ * \retval <0 The passed parameters were invalid or read fail
+ * \retval 0 Reading from register is completed successfully
+ */
+int32_t i2c_m_sync_cmd_read(struct i2c_m_sync_desc *i2c, uint8_t reg, uint8_t *buffer, uint8_t length);
+
+/**
+ * \brief Sync version of transfer message to/from the I2C slave
+ *
+ * This function will transfer a message between the I2C slave and the master. This function will wait for the operation
+ * to be done.
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ * \param[in] msg  An i2c_m_msg struct
+ *
+ * \return The status of the operation
+ * \retval 0 Operation completed successfully
+ * \retval <0 Operation failed
+ */
+int32_t i2c_m_sync_transfer(struct i2c_m_sync_desc *const i2c, struct _i2c_m_msg *msg);
+
+/**
+ * \brief Sync version of send stop condition on the i2c bus
+ *
+ * This function will create a stop condition on the i2c bus to release the bus
+ *
+ * \param[in] i2c An I2C descriptor, which is used to communicate through I2C
+ *
+ * \return The status of the operation
+ * \retval 0 Operation completed successfully
+ * \retval <0 Operation failed
+ */
+int32_t i2c_m_sync_send_stop(struct i2c_m_sync_desc *const i2c);
+
+/**
+ * \brief Return I/O descriptor for this I2C instance
+ *
+ * This function will return a I/O instance for this I2C driver instance
+ *
+ * \param[in] i2c_m_sync_desc An I2C descriptor, which is used to communicate through I2C
+ * \param[in] io_descriptor A pointer to an I/O descriptor pointer type
+ *
+ * \return Error code
+ * \retval 0 No error detected
+ * \retval <0 Error code
+ */
+int32_t i2c_m_sync_get_io_descriptor(struct i2c_m_sync_desc *const i2c, struct io_descriptor **io);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t i2c_m_sync_get_version(void);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hal_init.h b/watch-library/hal/include/hal_init.h
new file mode 100644
index 00000000..d7bc6fe2
--- /dev/null
+++ b/watch-library/hal/include/hal_init.h
@@ -0,0 +1,72 @@
+/**
+ * \file
+ *
+ * \brief HAL initialization related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_INIT_H_INCLUDED
+#define _HAL_INIT_H_INCLUDED
+
+#include <hpl_init.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_helper_init Init Driver
+ *
+ *@{
+ */
+
+/**
+ * \brief Initialize the hardware abstraction layer
+ *
+ * This function calls the various initialization functions.
+ * Currently the following initialization functions are supported:
+ *  - System clock initialization
+ */
+static inline void init_mcu(void)
+{
+	_init_chip();
+}
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t init_get_version(void);
+
+/**@}*/
+#ifdef __cplusplus
+}
+#endif
+#endif /* _HAL_INIT_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_io.h b/watch-library/hal/include/hal_io.h
new file mode 100644
index 00000000..f50401d7
--- /dev/null
+++ b/watch-library/hal/include/hal_io.h
@@ -0,0 +1,110 @@
+/**
+ * \file
+ *
+ * \brief I/O related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_IO_INCLUDED
+#define _HAL_IO_INCLUDED
+
+/**
+ * \addtogroup doc_driver_hal_helper_io I/O Driver
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief I/O descriptor
+ *
+ * The I/O descriptor forward declaration.
+ */
+struct io_descriptor;
+
+/**
+ * \brief I/O write function pointer type
+ */
+typedef int32_t (*io_write_t)(struct io_descriptor *const io_descr, const uint8_t *const buf, const uint16_t length);
+
+/**
+ * \brief I/O read function pointer type
+ */
+typedef int32_t (*io_read_t)(struct io_descriptor *const io_descr, uint8_t *const buf, const uint16_t length);
+
+/**
+ * \brief I/O descriptor
+ */
+struct io_descriptor {
+	io_write_t write; /*! The write function pointer. */
+	io_read_t  read;  /*! The read function pointer. */
+};
+
+/**
+ * \brief I/O write interface
+ *
+ * This function writes up to \p length of bytes to a given I/O descriptor.
+ * It returns the number of bytes actually write.
+ *
+ * \param[in] descr  An I/O descriptor to write
+ * \param[in] buf    The buffer pointer to story the write data
+ * \param[in] length The number of bytes to write
+ *
+ * \return The number of bytes written
+ */
+int32_t io_write(struct io_descriptor *const io_descr, const uint8_t *const buf, const uint16_t length);
+
+/**
+ * \brief I/O read interface
+ *
+ * This function reads up to \p length bytes from a given I/O descriptor, and
+ * stores it in the buffer pointed to by \p buf. It returns the number of bytes
+ * actually read.
+ *
+ * \param[in] descr  An I/O descriptor to read
+ * \param[in] buf    The buffer pointer to story the read data
+ * \param[in] length The number of bytes to read
+ *
+ * \return The number of bytes actually read. This number can be less than the
+ *         requested length. E.g., in a driver that uses ring buffer for
+ *         reception, it may depend on the availability of data in the
+ *         ring buffer.
+ */
+int32_t io_read(struct io_descriptor *const io_descr, uint8_t *const buf, const uint16_t length);
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HAL_IO_INCLUDED */
diff --git a/watch-library/hal/include/hal_pwm.h b/watch-library/hal/include/hal_pwm.h
new file mode 100644
index 00000000..d55f7e68
--- /dev/null
+++ b/watch-library/hal/include/hal_pwm.h
@@ -0,0 +1,153 @@
+/**
+ * \file
+ *
+ * \brief PWM functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef HAL_PWM_H_INCLUDED
+#define HAL_PWM_H_INCLUDED
+
+#include <hpl_pwm.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_pwm_async
+ *
+ *@{
+ */
+
+/**
+ * \brief PWM descriptor
+ *
+ * The PWM descriptor forward declaration.
+ */
+struct pwm_descriptor;
+
+/**
+ * \brief PWM callback type
+ */
+typedef void (*pwm_cb_t)(const struct pwm_descriptor *const descr);
+
+/**
+ * \brief PWM callback types
+ */
+enum pwm_callback_type { PWM_PERIOD_CB, PWM_ERROR_CB };
+
+/**
+ * \brief PWM callbacks
+ */
+struct pwm_callbacks {
+	pwm_cb_t period;
+	pwm_cb_t error;
+};
+
+/** \brief PWM descriptor
+ */
+struct pwm_descriptor {
+	/** PWM device */
+	struct _pwm_device device;
+	/** PWM callback structure */
+	struct pwm_callbacks pwm_cb;
+	/** PWM HPL interface pointer */
+	struct _pwm_hpl_interface *func;
+};
+
+/** \brief Initialize the PWM HAL instance and hardware
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *  \param[in] hw The pointer to hardware instance
+ *  \param[in] func The pointer to a set of functions pointers
+ *
+ *  \return Operation status.
+ */
+int32_t pwm_init(struct pwm_descriptor *const descr, void *const hw, struct _pwm_hpl_interface *const func);
+
+/** \brief Deinitialize the PWM HAL instance and hardware
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *
+ *  \return Operation status.
+ */
+int32_t pwm_deinit(struct pwm_descriptor *const descr);
+
+/** \brief PWM output start
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *
+ *  \return Operation status.
+ */
+int32_t pwm_enable(struct pwm_descriptor *const descr);
+
+/** \brief PWM output stop
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *
+ *  \return Operation status.
+ */
+int32_t pwm_disable(struct pwm_descriptor *const descr);
+
+/** \brief Register PWM callback
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *  \param[in] type Callback type
+ *  \param[in] cb A callback function, passing NULL de-registers callback
+ *
+ *  \return Operation status.
+ *  \retval 0 Success
+ *  \retval -1 Error
+ */
+int32_t pwm_register_callback(struct pwm_descriptor *const descr, enum pwm_callback_type type, pwm_cb_t cb);
+
+/** \brief Change PWM parameter
+ *
+ *  \param[in] descr Pointer to the HAL PWM descriptor
+ *  \param[in] period Total period of one PWM cycle
+ *  \param[in] duty_cycle Period of PWM first half during one cycle
+ *
+ *  \return Operation status.
+ */
+int32_t pwm_set_parameters(struct pwm_descriptor *const descr, const pwm_period_t period,
+                           const pwm_period_t duty_cycle);
+
+/** \brief Get PWM driver version
+ *
+ *  \return Current driver version.
+ */
+uint32_t pwm_get_version(void);
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_PWM;_H_INCLUDED */
diff --git a/watch-library/hal/include/hal_slcd_sync.h b/watch-library/hal/include/hal_slcd_sync.h
new file mode 100644
index 00000000..84c4e1f9
--- /dev/null
+++ b/watch-library/hal/include/hal_slcd_sync.h
@@ -0,0 +1,168 @@
+/**
+ * \file
+ *
+ * \brief SLCD Segment Liquid Crystal Display Controller(Sync) functionality
+ *        declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef HAL_SLCD_SYNC_H_INCLUDED
+#define HAL_SLCD_SYNC_H_INCLUDED
+
+#include <hpl_slcd_sync.h>
+#include <utils_assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_slcd_sync
+ *
+ *@{
+ */
+
+struct slcd_sync_descriptor {
+	struct _slcd_sync_device dev; /*!< SLCD HPL device descriptor */
+};
+
+/**
+ * \brief               Initialize SLCD Descriptor
+ *
+ * \param[in] descr     SLCD descriptor to be initialized
+ * \param[in] hw        The pointer to hardware instance
+ */
+int32_t slcd_sync_init(struct slcd_sync_descriptor *const descr, void *const hw);
+
+/**
+ * \brief               Deinitialize SLCD Descriptor
+ *
+ * \param[in] descr      SLCD descriptor to be deinitialized
+ */
+int32_t slcd_sync_deinit(struct slcd_sync_descriptor *const descr);
+
+/**
+ * \brief               Enable SLCD driver
+ *
+ * \param[in] descr     SLCD descriptor to be initialized
+ */
+int32_t slcd_sync_enable(struct slcd_sync_descriptor *const descr);
+
+/**
+ * \brief               Disable SLCD driver
+ *
+ * \param[in] descr     SLCD descriptor to be disabled
+ */
+int32_t slcd_sync_disable(struct slcd_sync_descriptor *const descr);
+
+/**
+ * \brief               Turn on a Segment
+ *
+ * \param[in] descr     SLCD descriptor to be enabled
+ * \param[in] seg       Segment index. The segment index is by the combination
+ *                      of common and segment terminal index. The
+ *                      SLCD_SEGID(com, seg) macro can generate the index.
+ */
+int32_t slcd_sync_seg_on(struct slcd_sync_descriptor *const descr, uint32_t seg);
+
+/**
+ * \brief               Turn off a Segment
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] seg       Segment index
+ *                      value is "(common terminals << 16 | segment terminal)"
+ */
+int32_t slcd_sync_seg_off(struct slcd_sync_descriptor *const descr, uint32_t seg);
+
+/**
+ * \brief               Blink a Segment
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] seg       Segment index
+ *                      value is "(common terminals << 16 | segment terminal)"
+ * \param[in] period    Blink period, unit is millisecond
+ */
+int32_t slcd_sync_seg_blink(struct slcd_sync_descriptor *const descr, uint32_t seg, const uint32_t period);
+
+/**
+ * \brief               Displays a character
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] character Character to be displayed
+ * \param[in] index     Index of the character Mapping Group
+ */
+int32_t slcd_sync_write_char(struct slcd_sync_descriptor *const descr, const uint8_t character, uint32_t index);
+
+/**
+ * \brief               Displays character string string
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] str       String to be displayed, 0 will turn off the
+ *                      corresponding char to display
+ * \param[in] len       Length of the string array
+ * \param[in] index     Index of the character Mapping Group
+ */
+int32_t slcd_sync_write_string(struct slcd_sync_descriptor *const descr, uint8_t *const str, uint32_t len,
+                               uint32_t index);
+
+/**
+ * \brief               Start animation play by a segment array
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] segs      Segment array
+ * \param[in] len       Length of the segment array
+ * \param[in] period    Period (milliseconds) of each segment to animation
+ */
+int32_t slcd_sync_start_animation(struct slcd_sync_descriptor *const descr, const uint32_t segs[], uint32_t len,
+                                  const uint32_t period);
+
+/**
+ * \brief               Stop animation play by a segment array
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] segs      Segment array
+ * \param[in] len       Length of the segment array
+ */
+int32_t slcd_sync_stop_animation(struct slcd_sync_descriptor *const descr, const uint32_t segs[], uint32_t len);
+
+/**
+ * \brief               Set animation Frequency
+ *
+ * \param[in] descr     SLCD descriptor
+ * \param[in] period    Period (million second) of each segment to animation
+ */
+int32_t slcd_sync_set_animation_period(struct slcd_sync_descriptor *const descr, const uint32_t period);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hal_sleep.h b/watch-library/hal/include/hal_sleep.h
new file mode 100644
index 00000000..b90ef6a5
--- /dev/null
+++ b/watch-library/hal/include/hal_sleep.h
@@ -0,0 +1,74 @@
+/**
+ * \file
+ *
+ * \brief Sleep related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HAL_SLEEP_H_INCLUDED
+#define _HAL_SLEEP_H_INCLUDED
+
+#include <hpl_sleep.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_helper_sleep
+ *
+ *@{
+ */
+
+/**
+ * \brief Set the sleep mode of the device and put the MCU to sleep
+ *
+ * For an overview of which systems are disabled in sleep for the different
+ * sleep modes, see the data sheet.
+ *
+ * \param[in] mode Sleep mode to use
+ *
+ * \return The status of a sleep request
+ * \retval -1 The requested sleep mode was invalid or not available
+ * \retval  0 The operation completed successfully, returned after leaving the
+ *            sleep
+ */
+int sleep(const uint8_t mode);
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version.
+ */
+uint32_t sleep_get_version(void);
+/**@}*/
+#ifdef __cplusplus
+}
+#endif
+#endif /* _HAL_SLEEP_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_adc_async.h b/watch-library/hal/include/hpl_adc_async.h
new file mode 100644
index 00000000..1aa41624
--- /dev/null
+++ b/watch-library/hal/include/hpl_adc_async.h
@@ -0,0 +1,264 @@
+/**
+ * \file
+ *
+ * \brief ADC related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_ADC_ASYNC_H_INCLUDED
+#define _HPL_ADC_ASYNC_H_INCLUDED
+
+/**
+ * \addtogroup HPL ADC
+ *
+ * \section hpl_async_adc_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include "hpl_adc_sync.h"
+#include "hpl_irq.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief ADC device structure
+ *
+ * The ADC device structure forward declaration.
+ */
+struct _adc_async_device;
+
+/**
+ * \brief ADC callback types
+ */
+enum _adc_async_callback_type { ADC_ASYNC_DEVICE_CONVERT_CB, ADC_ASYNC_DEVICE_MONITOR_CB, ADC_ASYNC_DEVICE_ERROR_CB };
+
+/**
+ * \brief ADC interrupt callbacks
+ */
+struct _adc_async_callbacks {
+	void (*window_cb)(struct _adc_async_device *device, const uint8_t channel);
+	void (*error_cb)(struct _adc_async_device *device, const uint8_t channel);
+};
+
+/**
+ * \brief ADC channel interrupt callbacks
+ */
+struct _adc_async_ch_callbacks {
+	void (*convert_done)(struct _adc_async_device *device, const uint8_t channel, const uint16_t data);
+};
+
+/**
+ * \brief ADC descriptor device structure
+ */
+struct _adc_async_device {
+	struct _adc_async_callbacks    adc_async_cb;
+	struct _adc_async_ch_callbacks adc_async_ch_cb;
+	struct _irq_descriptor         irq;
+	void *                         hw;
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize synchronous ADC
+ *
+ * This function does low level ADC configuration.
+ *
+ * param[in] device The pointer to ADC device instance
+ * param[in] hw     The pointer to hardware instance
+ *
+ * \return Initialization status
+ */
+int32_t _adc_async_init(struct _adc_async_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize ADC
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_async_deinit(struct _adc_async_device *const device);
+
+/**
+ * \brief Enable ADC peripheral
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_async_enable_channel(struct _adc_async_device *const device, const uint8_t channel);
+
+/**
+ * \brief Disable ADC peripheral
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_async_disable_channel(struct _adc_async_device *const device, const uint8_t channel);
+
+/**
+ * \brief Retrieve ADC conversion data size
+ *
+ * \param[in] device The pointer to ADC device instance
+ *
+ * \return The data size in bytes
+ */
+uint8_t _adc_async_get_data_size(const struct _adc_async_device *const device);
+
+/**
+ * \brief Check if conversion is done
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ *
+ * \return The status of conversion
+ * \retval true The conversion is done
+ * \retval false The conversion is not done
+ */
+bool _adc_async_is_channel_conversion_done(const struct _adc_async_device *const device, const uint8_t channel);
+
+/**
+ * \brief Make conversion
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_async_convert(struct _adc_async_device *const device);
+
+/**
+ * \brief Retrieve the conversion result
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ *
+ * The result value
+ */
+uint16_t _adc_async_read_channel_data(const struct _adc_async_device *const device, const uint8_t channel);
+
+/**
+ * \brief Set reference source
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] reference A reference source to set
+ */
+void _adc_async_set_reference_source(struct _adc_async_device *const device, const adc_reference_t reference);
+
+/**
+ * \brief Set resolution
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] resolution A resolution to set
+ */
+void _adc_async_set_resolution(struct _adc_async_device *const device, const adc_resolution_t resolution);
+
+/**
+ * \brief Set ADC input source of a channel
+ *
+ * \param[in] device    The pointer to ADC device instance
+ * \param[in] pos_input A positive input source to set
+ * \param[in] neg_input A negative input source to set
+ * \param[in] channel   Channel number
+ */
+void _adc_async_set_inputs(struct _adc_async_device *const device, const adc_pos_input_t pos_input,
+                           const adc_neg_input_t neg_input, const uint8_t channel);
+
+/**
+ * \brief Set conversion mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode A conversion mode to set
+ */
+void _adc_async_set_conversion_mode(struct _adc_async_device *const device, const enum adc_conversion_mode mode);
+
+/**
+ * \brief Set differential mode
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ * \param[in] mode    A differential mode to set
+ */
+void _adc_async_set_channel_differential_mode(struct _adc_async_device *const device, const uint8_t channel,
+                                              const enum adc_differential_mode mode);
+
+/**
+ * \brief Set gain
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ * \param[in] gain     A gain to set
+ */
+void _adc_async_set_channel_gain(struct _adc_async_device *const device, const uint8_t channel, const adc_gain_t gain);
+
+/**
+ * \brief Set window mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode   A mode to set
+ */
+void _adc_async_set_window_mode(struct _adc_async_device *const device, const adc_window_mode_t mode);
+
+/**
+ * \brief Set lower threshold
+ *
+ * \param[in] device        The pointer to ADC device instance
+ * \param[in] low_threshold  A lower threshold to set
+ * \param[in] up_threshold   An upper thresholds to set
+ */
+void _adc_async_set_thresholds(struct _adc_async_device *const device, const adc_threshold_t low_threshold,
+                               const adc_threshold_t up_threshold);
+
+/**
+ * \brief Retrieve threshold state
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[out] state The threshold state
+ */
+void _adc_async_get_threshold_state(const struct _adc_async_device *const device, adc_threshold_status_t *const state);
+
+/**
+ * \brief Enable/disable ADC channel interrupt
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ * \param[in] type     The type of interrupt to disable/enable if applicable
+ * \param[in] state    Enable or disable
+ */
+void _adc_async_set_irq_state(struct _adc_async_device *const device, const uint8_t channel,
+                              const enum _adc_async_callback_type type, const bool state);
+
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_ADC_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_adc_dma.h b/watch-library/hal/include/hpl_adc_dma.h
new file mode 100644
index 00000000..bb3a0541
--- /dev/null
+++ b/watch-library/hal/include/hpl_adc_dma.h
@@ -0,0 +1,243 @@
+/**
+ * \file
+ *
+ * \brief ADC related functionality declaration.
+ *
+ * Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_ADC_DMA_H_INCLUDED
+#define _HPL_ADC_DMA_H_INCLUDED
+
+/**
+ * \addtogroup HPL ADC
+ *
+ * \section hpl_dma_adc_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <hpl_adc_sync.h>
+#include <hpl_irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief ADC device structure
+ *
+ * The ADC device structure forward declaration.
+ */
+struct _adc_dma_device;
+
+/**
+ * \brief ADC callback types
+ */
+enum _adc_dma_callback_type { ADC_DMA_DEVICE_COMPLETE_CB, ADC_DMA_DEVICE_ERROR_CB };
+
+/**
+ * \brief ADC interrupt callbacks
+ */
+struct _adc_dma_callbacks {
+	void (*complete)(struct _adc_dma_device *device, const uint16_t data);
+	void (*error)(struct _adc_dma_device *device);
+};
+
+/**
+ * \brief ADC descriptor device structure
+ */
+struct _adc_dma_device {
+	struct _adc_dma_callbacks adc_dma_cb;
+	struct _irq_descriptor    irq;
+	void *                    hw;
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize synchronous ADC
+ *
+ * This function does low level ADC configuration.
+ *
+ * param[in] device The pointer to ADC device instance
+ * param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status
+ */
+int32_t _adc_dma_init(struct _adc_dma_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize ADC
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_dma_deinit(struct _adc_dma_device *const device);
+
+/**
+ * \brief Enable ADC peripheral
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_dma_enable_channel(struct _adc_dma_device *const device, const uint8_t channel);
+
+/**
+ * \brief Disable ADC peripheral
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_dma_disable_channel(struct _adc_dma_device *const device, const uint8_t channel);
+
+/**
+ * \brief Return address of ADC DMA source
+ *
+ * \param[in] device The pointer to ADC device instance
+ *
+ * \return ADC DMA source address
+ */
+uint32_t _adc_get_source_for_dma(struct _adc_dma_device *const device);
+
+/**
+ * \brief Retrieve ADC conversion data size
+ *
+ * \param[in] device The pointer to ADC device instance
+ *
+ * \return The data size in bytes
+ */
+uint8_t _adc_dma_get_data_size(const struct _adc_dma_device *const device);
+
+/**
+ * \brief Check if conversion is done
+ *
+ * \param[in] device   The pointer to ADC device instance
+ *
+ * \return The status of conversion
+ * \retval true The conversion is done
+ * \retval false The conversion is not done
+ */
+bool _adc_dma_is_conversion_done(const struct _adc_dma_device *const device);
+
+/**
+ * \brief Make conversion
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_dma_convert(struct _adc_dma_device *const device);
+
+/**
+ * \brief Set reference source
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] reference A reference source to set
+ */
+void _adc_dma_set_reference_source(struct _adc_dma_device *const device, const adc_reference_t reference);
+
+/**
+ * \brief Set resolution
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] resolution A resolution to set
+ */
+void _adc_dma_set_resolution(struct _adc_dma_device *const device, const adc_resolution_t resolution);
+
+/**
+ * \brief Set ADC input source of a channel
+ *
+ * \param[in] device    The pointer to ADC device instance
+ * \param[in] pos_input A positive input source to set
+ * \param[in] neg_input A negative input source to set
+ * \param[in] channel   Channel number
+ */
+void _adc_dma_set_inputs(struct _adc_dma_device *const device, const adc_pos_input_t pos_input,
+                         const adc_neg_input_t neg_input, const uint8_t channel);
+
+/**
+ * \brief Set conversion mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode A conversion mode to set
+ */
+void _adc_dma_set_conversion_mode(struct _adc_dma_device *const device, const enum adc_conversion_mode mode);
+
+/**
+ * \brief Set differential mode
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ * \param[in] mode    A differential mode to set
+ */
+void _adc_dma_set_channel_differential_mode(struct _adc_dma_device *const device, const uint8_t channel,
+                                            const enum adc_differential_mode mode);
+
+/**
+ * \brief Set gain
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ * \param[in] gain    A gain to set
+ */
+void _adc_dma_set_channel_gain(struct _adc_dma_device *const device, const uint8_t channel, const adc_gain_t gain);
+
+/**
+ * \brief Set window mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode A mode to set
+ */
+void _adc_dma_set_window_mode(struct _adc_dma_device *const device, const adc_window_mode_t mode);
+
+/**
+ * \brief Set thresholds
+ *
+ * \param[in] device        The pointer to ADC device instance
+ * \param[in] low_threshold A lower thresholds to set
+ * \param[in] up_threshold  An upper thresholds to set
+ */
+void _adc_dma_set_thresholds(struct _adc_dma_device *const device, const adc_threshold_t low_threshold,
+                             const adc_threshold_t up_threshold);
+
+/**
+ * \brief Retrieve threshold state
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[out] state The threshold state
+ */
+void _adc_dma_get_threshold_state(const struct _adc_dma_device *const device, adc_threshold_status_t *const state);
+
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_ADC_DMA_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_adc_sync.h b/watch-library/hal/include/hpl_adc_sync.h
new file mode 100644
index 00000000..3bfbc61d
--- /dev/null
+++ b/watch-library/hal/include/hpl_adc_sync.h
@@ -0,0 +1,271 @@
+/**
+ * \file
+ *
+ * \brief ADC related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_ADC_SYNC_H_INCLUDED
+#define _HPL_ADC_SYNC_H_INCLUDED
+
+/**
+ * \addtogroup HPL ADC
+ *
+ * \section hpl_adc_sync_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include "compiler.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief ADC reference source
+ */
+typedef uint8_t adc_reference_t;
+
+/**
+ * \brief ADC resolution
+ */
+typedef uint8_t adc_resolution_t;
+
+/**
+ * \brief ADC positive input for channel
+ */
+typedef uint8_t adc_pos_input_t;
+
+/**
+ * \brief ADC negative input for channel
+ */
+typedef uint8_t adc_neg_input_t;
+
+/**
+ * \brief ADC threshold
+ */
+typedef uint16_t adc_threshold_t;
+
+/**
+ * \brief ADC gain
+ */
+typedef uint8_t adc_gain_t;
+
+/**
+ * \brief ADC conversion mode
+ */
+enum adc_conversion_mode { ADC_CONVERSION_MODE_SINGLE_CONVERSION = 0, ADC_CONVERSION_MODE_FREERUN };
+
+/**
+ * \brief ADC differential mode
+ */
+enum adc_differential_mode { ADC_DIFFERENTIAL_MODE_SINGLE_ENDED = 0, ADC_DIFFERENTIAL_MODE_DIFFERENTIAL };
+
+/**
+ * \brief ADC window mode
+ */
+typedef uint8_t adc_window_mode_t;
+
+/**
+ * \brief ADC threshold status
+ */
+typedef bool adc_threshold_status_t;
+
+/**
+ * \brief ADC sync descriptor device structure
+ */
+struct _adc_sync_device {
+	void *hw;
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize synchronous ADC
+ *
+ * This function does low level ADC configuration.
+ *
+ * param[in] device The pointer to ADC device instance
+ * param[in] hw     The pointer to hardware instance
+ *
+ * \return Initialization status
+ */
+int32_t _adc_sync_init(struct _adc_sync_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize ADC
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_sync_deinit(struct _adc_sync_device *const device);
+
+/**
+ * \brief Enable ADC
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_sync_enable_channel(struct _adc_sync_device *const device, const uint8_t channel);
+
+/**
+ * \brief Disable ADC
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ */
+void _adc_sync_disable_channel(struct _adc_sync_device *const device, const uint8_t channel);
+
+/**
+ * \brief Retrieve ADC conversion data size
+ *
+ * \param[in] device The pointer to ADC device instance
+ *
+ * \return The data size in bytes
+ */
+uint8_t _adc_sync_get_data_size(const struct _adc_sync_device *const device);
+
+/**
+ * \brief Check if conversion is done
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ *
+ * \return The status of conversion
+ * \retval true The conversion is done
+ * \retval false The conversion is not done
+ */
+bool _adc_sync_is_channel_conversion_done(const struct _adc_sync_device *const device, const uint8_t channel);
+
+/**
+ * \brief Make conversion
+ *
+ * \param[in] device The pointer to ADC device instance
+ */
+void _adc_sync_convert(struct _adc_sync_device *const device);
+
+/**
+ * \brief Retrieve the conversion result
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ *
+ * \return The result value of channel
+ */
+uint16_t _adc_sync_read_channel_data(const struct _adc_sync_device *const device, const uint8_t channel);
+
+/**
+ * \brief Set reference source
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] reference A reference source to set
+ */
+void _adc_sync_set_reference_source(struct _adc_sync_device *const device, const adc_reference_t reference);
+
+/**
+ * \brief Set resolution
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] resolution A resolution to set
+ */
+void _adc_sync_set_resolution(struct _adc_sync_device *const device, const adc_resolution_t resolution);
+
+/**
+ * \brief Set ADC input source of a channel
+ *
+ * \param[in] device    The pointer to ADC device instance
+ * \param[in] pos_input A positive input source to set
+ * \param[in] neg_input A negative input source to set
+ * \param[in] channel   Channel number
+ */
+void _adc_sync_set_inputs(struct _adc_sync_device *const device, const adc_pos_input_t pos_input,
+                          const adc_neg_input_t neg_input, const uint8_t channel);
+
+/**
+ * \brief Set conversion mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode A conversion mode to set
+ */
+void _adc_sync_set_conversion_mode(struct _adc_sync_device *const device, const enum adc_conversion_mode mode);
+
+/**
+ * \brief Set differential mode
+ *
+ * \param[in] device  The pointer to ADC device instance
+ * \param[in] channel Channel number
+ * \param[in] mode    A differential mode to set
+ */
+void _adc_sync_set_channel_differential_mode(struct _adc_sync_device *const device, const uint8_t channel,
+                                             const enum adc_differential_mode mode);
+
+/**
+ * \brief Set gain
+ *
+ * \param[in] device   The pointer to ADC device instance
+ * \param[in] channel  Channel number
+ * \param[in] gain     A gain to set
+ */
+void _adc_sync_set_channel_gain(struct _adc_sync_device *const device, const uint8_t channel, const adc_gain_t gain);
+
+/**
+ * \brief Set window mode
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[in] mode   A mode to set
+ */
+void _adc_sync_set_window_mode(struct _adc_sync_device *const device, const adc_window_mode_t mode);
+
+/**
+ * \brief Set threshold
+ *
+ * \param[in] device        The pointer to ADC device instance
+ * \param[in] low_threshold  A lower threshold to set
+ * \param[in] up_threshold   An upper thresholds to set
+ */
+void _adc_sync_set_thresholds(struct _adc_sync_device *const device, const adc_threshold_t low_threshold,
+                              const adc_threshold_t up_threshold);
+
+/**
+ * \brief Retrieve threshold state
+ *
+ * \param[in] device The pointer to ADC device instance
+ * \param[out] state The threshold state
+ */
+void _adc_sync_get_threshold_state(const struct _adc_sync_device *const device, adc_threshold_status_t *const state);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_ADC_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_calendar.h b/watch-library/hal/include/hpl_calendar.h
new file mode 100644
index 00000000..16601d3a
--- /dev/null
+++ b/watch-library/hal/include/hpl_calendar.h
@@ -0,0 +1,318 @@
+/**
+ * \file
+ *
+ * \brief Generic CALENDAR functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_CALENDER_H_INCLUDED
+#define _HPL_CALENDER_H_INCLUDED
+
+#include <compiler.h>
+#include <utils_list.h>
+#include "hpl_irq.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Calendar structure
+ *
+ * The Calendar structure forward declaration.
+ */
+struct calendar_dev;
+
+/**
+ * \brief Available mask options for alarms.
+ *
+ * Available mask options for alarms.
+ */
+enum calendar_alarm_option {
+	/** Alarm disabled. */
+	CALENDAR_ALARM_MATCH_DISABLED = 0,
+	/** Alarm match on second. */
+	CALENDAR_ALARM_MATCH_SEC,
+	/** Alarm match on second and minute. */
+	CALENDAR_ALARM_MATCH_MIN,
+	/** Alarm match on second, minute, and hour. */
+	CALENDAR_ALARM_MATCH_HOUR,
+	/** Alarm match on second, minute, hour, and day. */
+	CALENDAR_ALARM_MATCH_DAY,
+	/** Alarm match on second, minute, hour, day, and month. */
+	CALENDAR_ALARM_MATCH_MONTH,
+	/** Alarm match on second, minute, hour, day, month and year. */
+	CALENDAR_ALARM_MATCH_YEAR
+};
+
+/**
+ * \brief Available mode for alarms.
+ */
+enum calendar_alarm_mode { ONESHOT = 1, REPEAT };
+/**
+ * \brief Prototype of callback on alarm match
+ */
+typedef void (*calendar_drv_cb_alarm_t)(struct calendar_dev *const dev);
+
+/**
+ * \brief Prototype of callback on tamper detect
+ */
+typedef void (*tamper_drv_cb_t)(struct calendar_dev *const dev);
+
+/**
+ * \brief Structure of Calendar instance
+ */
+struct calendar_dev {
+	/** Pointer to the hardware base */
+	void *hw;
+	/** Alarm match callback */
+	calendar_drv_cb_alarm_t callback;
+	/** Tamper callback */
+	tamper_drv_cb_t callback_tamper;
+	/** IRQ struct */
+	struct _irq_descriptor irq;
+};
+/**
+ * \brief Time struct for calendar
+ */
+struct calendar_time {
+	/*range from 0 to 59*/
+	uint8_t sec;
+	/*range from 0 to 59*/
+	uint8_t min;
+	/*range from 0 to 23*/
+	uint8_t hour;
+};
+
+/**
+ * \brief Time struct for calendar
+ */
+struct calendar_date {
+	/*range from 1 to 28/29/30/31*/
+	uint8_t day;
+	/*range from 1 to 12*/
+	uint8_t month;
+	/*absolute year>= 1970(such as 2000)*/
+	uint16_t year;
+};
+
+/** \brief Calendar driver struct
+ *
+ */
+struct calendar_descriptor {
+	struct calendar_dev    device;
+	struct list_descriptor alarms;
+	/*base date/time = base_year/1/1/0/0/0(year/month/day/hour/min/sec)*/
+	uint32_t base_year;
+	uint8_t  flags;
+};
+
+/** \brief Date&Time struct for calendar
+ */
+struct calendar_date_time {
+	struct calendar_time time;
+	struct calendar_date date;
+};
+
+/** \brief struct for alarm time
+ */
+struct _calendar_alarm {
+	struct calendar_date_time  datetime;
+	uint32_t                   timestamp;
+	enum calendar_alarm_option option;
+	enum calendar_alarm_mode   mode;
+};
+
+/** \enum for tamper detection mode
+ */
+enum tamper_detection_mode { TAMPER_MODE_OFF = 0U, TAMPER_MODE_WAKE, TAMPER_MODE_CAPTURE, TAMPER_MODE_ACTL };
+
+/** \enum for tamper detection mode
+ */
+enum tamper_id { TAMPID0 = 0U, TAMPID1, TAMPID2, TAMPID3, TAMPID4 };
+/**
+ * \brief Initialize Calendar instance
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_init(struct calendar_dev *const dev);
+
+/**
+ * \brief Deinitialize Calendar instance
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_deinit(struct calendar_dev *const dev);
+
+/**
+ * \brief Enable Calendar instance
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_enable(struct calendar_dev *const dev);
+
+/**
+ * \brief Disable Calendar instance
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_disable(struct calendar_dev *const dev);
+/**
+ * \brief Set counter for calendar
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] counter The counter for set
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_set_counter(struct calendar_dev *const dev, const uint32_t counter);
+
+/**
+ * \brief Get counter for calendar
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return return current counter value
+ */
+uint32_t _calendar_get_counter(struct calendar_dev *const dev);
+
+/**
+ * \brief Set compare value for calendar
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] comp The compare value for set
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_set_comp(struct calendar_dev *const dev, const uint32_t comp);
+
+/**
+ * \brief Get compare value for calendar
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return return current compare value
+ */
+uint32_t _calendar_get_comp(struct calendar_dev *const dev);
+
+/**
+ * \brief Register callback for calendar alarm
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] callback The pointer to callback function
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _calendar_register_callback(struct calendar_dev *const dev, calendar_drv_cb_alarm_t callback);
+
+/**
+ * \brief Set calendar IRQ
+ *
+ * \param[in] dev The pointer to calendar device struct
+ */
+void _calendar_set_irq(struct calendar_dev *const dev);
+
+/**
+ * \brief Register callback for tamper detection
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] callback The pointer to callback function
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _tamper_register_callback(struct calendar_dev *const dev, tamper_drv_cb_t callback_tamper);
+
+/**
+ * \brief Find tamper is detected on specified pin
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] enum Tamper ID number
+ *
+ * \return true on detection success and false on failure.
+ */
+bool _is_tamper_detected(struct calendar_dev *const dev, enum tamper_id tamper_id_pin);
+
+/**
+ * \brief brief Clear the Tamper ID flag
+ *
+ * \param[in] dev The pointer to calendar device struct
+ * \param[in] enum Tamper ID number
+ *
+ * \return ERR_NONE
+ */
+int32_t _tamper_clear_tampid_flag(struct calendar_dev *const dev, enum tamper_id tamper_id_pin);
+
+/**
+ * \brief Enable Debounce Asynchronous Feature
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _tamper_enable_debounce_asynchronous(struct calendar_dev *const dev);
+
+/**
+ * \brief Disable Tamper Debounce Asynchronous Feature
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _tamper_disable_debounce_asynchronous(struct calendar_dev *const dev);
+
+/**
+ * \brief Enable Tamper Debounce Majority Feature
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _tamper_enable_debounce_majority(struct calendar_dev *const dev);
+
+/**
+ * \brief Enable Tamper Debounce Majority Feature
+ *
+ * \param[in] dev The pointer to calendar device struct
+ *
+ * \return ERR_NONE on success, or an error code on failure.
+ */
+int32_t _tamper_disable_debounce_majority(struct calendar_dev *const dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HPL_RTC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_core.h b/watch-library/hal/include/hpl_core.h
new file mode 100644
index 00000000..9324c43e
--- /dev/null
+++ b/watch-library/hal/include/hpl_core.h
@@ -0,0 +1,56 @@
+/**
+ * \file
+ *
+ * \brief CPU core related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_CORE_H_INCLUDED
+#define _HPL_CORE_H_INCLUDED
+
+/**
+ * \addtogroup HPL Core
+ *
+ * \section hpl_core_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include "hpl_core_port.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_CORE_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_delay.h b/watch-library/hal/include/hpl_delay.h
new file mode 100644
index 00000000..a0f1ac81
--- /dev/null
+++ b/watch-library/hal/include/hpl_delay.h
@@ -0,0 +1,97 @@
+/**
+ * \file
+ *
+ * \brief Delay related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_DELAY_H_INCLUDED
+#define _HPL_DELAY_H_INCLUDED
+
+/**
+ * \addtogroup HPL Delay
+ *
+ * \section hpl_delay_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#ifndef _UNIT_TEST_
+#include <compiler.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name HPL functions
+ */
+//@{
+
+/**
+ * \brief Initialize delay functionality
+ *
+ * \param[in] hw The pointer to hardware instance
+ */
+void _delay_init(void *const hw);
+
+/**
+ * \brief Retrieve the amount of cycles to delay for the given amount of us
+ *
+ * \param[in] us The amount of us to delay for
+ *
+ * \return The amount of cycles
+ */
+uint32_t _get_cycles_for_us(const uint16_t us);
+
+/**
+ * \brief Retrieve the amount of cycles to delay for the given amount of ms
+ *
+ * \param[in] ms The amount of ms to delay for
+ *
+ * \return The amount of cycles
+ */
+uint32_t _get_cycles_for_ms(const uint16_t ms);
+
+/**
+ * \brief Delay loop to delay n number of cycles
+ *
+ * \param[in] hw The pointer to hardware instance
+ * \param[in] cycles The amount of cycles to delay for
+ */
+void _delay_cycles(void *const hw, uint32_t cycles);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_DELAY_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_dma.h b/watch-library/hal/include/hpl_dma.h
new file mode 100644
index 00000000..1e08434a
--- /dev/null
+++ b/watch-library/hal/include/hpl_dma.h
@@ -0,0 +1,176 @@
+/**
+ * \file
+ *
+ * \brief DMA related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_DMA_H_INCLUDED
+#define _HPL_DMA_H_INCLUDED
+
+/**
+ * \addtogroup HPL DMA
+ *
+ * \section hpl_dma_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+#include <hpl_irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _dma_resource;
+
+/**
+ * \brief DMA callback types
+ */
+enum _dma_callback_type { DMA_TRANSFER_COMPLETE_CB, DMA_TRANSFER_ERROR_CB };
+
+/**
+ * \brief DMA interrupt callbacks
+ */
+struct _dma_callbacks {
+	void (*transfer_done)(struct _dma_resource *resource);
+	void (*error)(struct _dma_resource *resource);
+};
+
+/**
+ * \brief DMA resource structure
+ */
+struct _dma_resource {
+	struct _dma_callbacks dma_cb;
+	void *                back;
+};
+
+/**
+ * \brief Initialize DMA
+ *
+ * This function does low level DMA configuration.
+ *
+ * \return initialize status
+ */
+int32_t _dma_init(void);
+
+/**
+ * \brief Set destination address
+ *
+ * \param[in] channel DMA channel to set destination address for
+ * \param[in] dst Destination address
+ *
+ * \return setting status
+ */
+int32_t _dma_set_destination_address(const uint8_t channel, const void *const dst);
+
+/**
+ * \brief Set source address
+ *
+ * \param[in] channel DMA channel to set source address for
+ * \param[in] src Source address
+ *
+ * \return setting status
+ */
+int32_t _dma_set_source_address(const uint8_t channel, const void *const src);
+
+/**
+ * \brief Set next descriptor address
+ *
+ * \param[in] current_channel Current DMA channel to set next descriptor address
+ * \param[in] next_channel Next DMA channel used as next descriptor
+ *
+ * \return setting status
+ */
+int32_t _dma_set_next_descriptor(const uint8_t current_channel, const uint8_t next_channel);
+
+/**
+ * \brief Enable/disable source address incrementation during DMA transaction
+ *
+ * \param[in] channel DMA channel to set source address for
+ * \param[in] enable True to enable, false to disable
+ *
+ * \return status of operation
+ */
+int32_t _dma_srcinc_enable(const uint8_t channel, const bool enable);
+
+/**
+ * \brief Enable/disable Destination address incrementation during DMA transaction
+ *
+ * \param[in] channel DMA channel to set destination address for
+ * \param[in] enable True to enable, false to disable
+ *
+ * \return status of operation
+ */
+int32_t _dma_dstinc_enable(const uint8_t channel, const bool enable);
+/**
+ * \brief Set the amount of data to be transfered per transaction
+ *
+ * \param[in] channel DMA channel to set data amount for
+ * \param[in] amount Data amount
+ *
+ * \return status of operation
+ */
+int32_t _dma_set_data_amount(const uint8_t channel, const uint32_t amount);
+
+/**
+ * \brief Trigger DMA transaction on the given channel
+ *
+ * \param[in] channel DMA channel to trigger transaction on
+ *
+ * \return status of operation
+ */
+int32_t _dma_enable_transaction(const uint8_t channel, const bool software_trigger);
+
+/**
+ * \brief Retrieves DMA resource structure
+ *
+ * \param[out] resource The resource to be retrieved
+ * \param[in] channel DMA channel to retrieve structure for
+ *
+ * \return status of operation
+ */
+int32_t _dma_get_channel_resource(struct _dma_resource **resource, const uint8_t channel);
+
+/**
+ * \brief Enable/disable DMA interrupt
+ *
+ * \param[in] channel DMA channel to enable/disable interrupt for
+ * \param[in] type The type of interrupt to disable/enable if applicable
+ * \param[in] state Enable or disable
+ */
+void _dma_set_irq_state(const uint8_t channel, const enum _dma_callback_type type, const bool state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HPL_DMA_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_ext_irq.h b/watch-library/hal/include/hpl_ext_irq.h
new file mode 100644
index 00000000..3a169b69
--- /dev/null
+++ b/watch-library/hal/include/hpl_ext_irq.h
@@ -0,0 +1,95 @@
+/**
+ * \file
+ *
+ * \brief External IRQ related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_EXT_IRQ_H_INCLUDED
+#define _HPL_EXT_IRQ_H_INCLUDED
+
+/**
+ * \addtogroup HPL EXT IRQ
+ *
+ * \section hpl_ext_irq_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize external interrupt module
+ *
+ * This function does low level external interrupt configuration.
+ *
+ * \param[in] cb The pointer to callback function from external interrupt
+ *
+ * \return Initialization status.
+ * \retval -1 External irq module is already initialized
+ * \retval 0 The initialization is completed successfully
+ */
+int32_t _ext_irq_init(void (*cb)(const uint32_t pin));
+
+/**
+ * \brief Deinitialize external interrupt module
+ *
+ * \return Initialization status.
+ * \retval -1 External irq module is already deinitialized
+ * \retval 0 The de-initialization is completed successfully
+ */
+int32_t _ext_irq_deinit(void);
+
+/**
+ * \brief Enable / disable external irq
+ *
+ * \param[in] pin Pin to enable external irq on
+ * \param[in] enable True to enable, false to disable
+ *
+ * \return Status of external irq enabling / disabling
+ * \retval -1 External irq module can't be enabled / disabled
+ * \retval 0 External irq module is enabled / disabled successfully
+ */
+int32_t _ext_irq_enable(const uint32_t pin, const bool enable);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_EXT_IRQ_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_gpio.h b/watch-library/hal/include/hpl_gpio.h
new file mode 100644
index 00000000..5cdd387b
--- /dev/null
+++ b/watch-library/hal/include/hpl_gpio.h
@@ -0,0 +1,185 @@
+/**
+ * \file
+ *
+ * \brief Port related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_GPIO_H_INCLUDED
+#define _HPL_GPIO_H_INCLUDED
+
+/**
+ * \addtogroup HPL Port
+ *
+ * \section hpl_port_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/**
+ * \brief Macros for the pin and port group, lower 5
+ * bits stands for pin number in the group, higher 3
+ * bits stands for port group
+ */
+#define GPIO_PIN(n) (((n)&0x1Fu) << 0)
+#define GPIO_PORT(n) ((n) >> 5)
+#define GPIO(port, pin) ((((port)&0x7u) << 5) + ((pin)&0x1Fu))
+#define GPIO_PIN_FUNCTION_OFF 0xffffffff
+
+/**
+ * \brief PORT pull mode settings
+ */
+enum gpio_pull_mode { GPIO_PULL_OFF, GPIO_PULL_UP, GPIO_PULL_DOWN };
+
+/**
+ * \brief PORT direction settins
+ */
+enum gpio_direction { GPIO_DIRECTION_OFF, GPIO_DIRECTION_IN, GPIO_DIRECTION_OUT };
+
+/**
+ * \brief PORT group abstraction
+ */
+
+enum gpio_port { GPIO_PORTA, GPIO_PORTB, GPIO_PORTC, GPIO_PORTD, GPIO_PORTE };
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Port initialization function
+ *
+ * Port initialization function should setup the port module based
+ * on a static configuration file, this function should normally
+ * not be called directly, but is a part of hal_init()
+ */
+void _gpio_init(void);
+
+/**
+ * \brief Set direction on port with mask
+ *
+ * Set data direction for each pin, or disable the pin
+ *
+ * \param[in] port      Ports are grouped into groups of maximum 32 pins,
+ *                      GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask      Bit mask where 1 means apply direction setting to the
+ *                      corresponding pin
+ * \param[in] direction GPIO_DIRECTION_OFF  = set pin direction to input
+ *                      and disable input buffer to disable the pin
+ *                      GPIO_DIRECTION_IN   = set pin direction to input
+ *                      and enable input buffer to enable the pin
+ *                      GPIO_DIRECTION_OUT  = set pin direction to output
+ *                      and disable input buffer
+ */
+static inline void _gpio_set_direction(const enum gpio_port port, const uint32_t mask,
+                                       const enum gpio_direction direction);
+
+/**
+ * \brief Set output level on port with mask
+ *
+ * Sets output state on pin to high or low with pin masking
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask  Bit mask where 1 means apply direction setting to
+ *                  the corresponding pin
+ * \param[in] level true  = pin level is set to 1
+ *                  false = pin level is set to 0
+ */
+static inline void _gpio_set_level(const enum gpio_port port, const uint32_t mask, const bool level);
+
+/**
+ * \brief Change output level to the opposite with mask
+ *
+ * Change pin output level to the opposite with pin masking
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] mask  Bit mask where 1 means apply direction setting to
+ *                  the corresponding pin
+ */
+static inline void _gpio_toggle_level(const enum gpio_port port, const uint32_t mask);
+
+/**
+ * \brief Get input levels on all port pins
+ *
+ * Get input level on all port pins, will read IN register if configured to
+ * input and OUT register if configured as output
+ *
+ * \param[in] port  Ports are grouped into groups of maximum 32 pins,
+ *                  GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ */
+static inline uint32_t _gpio_get_level(const enum gpio_port port);
+
+/**
+ * \brief Set pin pull mode
+ *
+ * Set pull mode on a single pin
+ *
+ * \notice This function will automatically change pin direction to input
+ *
+ * \param[in] port      Ports are grouped into groups of maximum 32 pins,
+ *                      GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc
+ * \param[in] pin       The pin in the group that pull mode should be selected
+ *                      for
+ * \param[in] pull_mode GPIO_PULL_OFF  = pull resistor on pin is disabled
+ *                      GPIO_PULL_DOWN = pull resistor on pin will pull pin
+ *                      level to ground level
+ *                      GPIO_PULL_UP   = pull resistor on pin will pull pin
+ *                      level to VCC
+ */
+static inline void _gpio_set_pin_pull_mode(const enum gpio_port port, const uint8_t pin,
+                                           const enum gpio_pull_mode pull_mode);
+
+/**
+ * \brief Set gpio function
+ *
+ * Select which function a gpio is used for
+ *
+ * \param[in] gpio     The gpio to set function for
+ * \param[in] function The gpio function is given by a 32-bit wide bitfield
+ *                     found in the header files for the device
+ *
+ */
+static inline void _gpio_set_pin_function(const uint32_t gpio, const uint32_t function);
+
+#include <hpl_gpio_base.h>
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_GPIO_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_i2c_m_async.h b/watch-library/hal/include/hpl_i2c_m_async.h
new file mode 100644
index 00000000..8a9491de
--- /dev/null
+++ b/watch-library/hal/include/hpl_i2c_m_async.h
@@ -0,0 +1,205 @@
+/**
+ * \file
+ *
+ * \brief I2C Master Hardware Proxy Layer(HPL) declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_I2C_M_ASYNC_H_INCLUDED
+#define _HPL_I2C_M_ASYNC_H_INCLUDED
+
+#include "hpl_i2c_m_sync.h"
+#include "hpl_irq.h"
+#include "utils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief i2c master callback names
+ */
+enum _i2c_m_async_callback_type {
+	I2C_M_ASYNC_DEVICE_ERROR,
+	I2C_M_ASYNC_DEVICE_TX_COMPLETE,
+	I2C_M_ASYNC_DEVICE_RX_COMPLETE
+};
+
+struct _i2c_m_async_device;
+
+typedef void (*_i2c_complete_cb_t)(struct _i2c_m_async_device *i2c_dev);
+typedef void (*_i2c_error_cb_t)(struct _i2c_m_async_device *i2c_dev, int32_t errcode);
+
+/**
+ * \brief i2c callback pointers structure
+ */
+struct _i2c_m_async_callback {
+	_i2c_error_cb_t    error;
+	_i2c_complete_cb_t tx_complete;
+	_i2c_complete_cb_t rx_complete;
+};
+
+/**
+ * \brief i2c device structure
+ */
+struct _i2c_m_async_device {
+	struct _i2c_m_service        service;
+	void *                       hw;
+	struct _i2c_m_async_callback cb;
+	struct _irq_descriptor       irq;
+};
+
+/**
+ * \name HPL functions
+ */
+
+/**
+ * \brief Initialize I2C in interrupt mode
+ *
+ * This function does low level I2C configuration.
+ *
+ * \param[in] i2c_dev The pointer to i2c interrupt device structure
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_init(struct _i2c_m_async_device *const i2c_dev, void *const hw);
+
+/**
+ * \brief Deinitialize I2C in interrupt mode
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_deinit(struct _i2c_m_async_device *const i2c_dev);
+
+/**
+ * \brief Enable I2C module
+ *
+ * This function does low level I2C enable.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_enable(struct _i2c_m_async_device *const i2c_dev);
+
+/**
+ * \brief Disable I2C module
+ *
+ * This function does low level I2C disable.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_disable(struct _i2c_m_async_device *const i2c_dev);
+
+/**
+ * \brief Transfer data by I2C
+ *
+ * This function does low level I2C data transfer.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] msg The pointer to i2c msg structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_transfer(struct _i2c_m_async_device *const i2c_dev, struct _i2c_m_msg *msg);
+
+/**
+ * \brief Set baud rate of I2C
+ *
+ * This function does low level I2C set baud rate.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] clkrate The clock rate(KHz) input to i2c module
+ * \param[in] baudrate The demand baud rate(KHz) of i2c module
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_set_baudrate(struct _i2c_m_async_device *const i2c_dev, uint32_t clkrate, uint32_t baudrate);
+
+/**
+ * \brief Register callback to I2C
+ *
+ * This function does low level I2C callback register.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] cb_type The callback type request
+ * \param[in] func The callback function pointer
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_async_register_callback(struct _i2c_m_async_device *i2c_dev, enum _i2c_m_async_callback_type cb_type,
+                                       FUNC_PTR func);
+
+/**
+ * \brief Generate stop condition on the I2C bus
+ *
+ * This function will generate a stop condition on the I2C bus
+ *
+ * \param[in] i2c_m_async_descriptor An i2c descriptor which is used to communicate through I2C
+ *
+ * \return Operation status
+ * \retval 0 Operation executed successfully
+ * \retval <0 Operation failed
+ */
+int32_t _i2c_m_async_send_stop(struct _i2c_m_async_device *const i2c_dev);
+
+/**
+ * \brief Returns the number of bytes left or not used in the I2C message buffer
+ *
+ * This function will return the number of bytes left (not written to the bus) or still free
+ * (not received from the bus) in the message buffer, depending on direction of transmission.
+ *
+ * \param[in] i2c_m_async_descriptor An i2c descriptor which is used to communicate through I2C
+ *
+ * \return Number of bytes or error code
+ * \retval >0 Positive number indicating bytes left
+ * \retval 0  Buffer is full/empty depending on direction
+ * \retval <0 Error code
+ */
+int32_t _i2c_m_async_get_bytes_left(struct _i2c_m_async_device *const i2c_dev);
+
+/**
+ * \brief Enable/disable I2C master interrupt
+ *
+ * param[in] device The pointer to I2C master device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] state Enable or disable
+ */
+void _i2c_m_async_set_irq_state(struct _i2c_m_async_device *const device, const enum _i2c_m_async_callback_type type,
+                                const bool state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hpl_i2c_m_sync.h b/watch-library/hal/include/hpl_i2c_m_sync.h
new file mode 100644
index 00000000..ce173ae2
--- /dev/null
+++ b/watch-library/hal/include/hpl_i2c_m_sync.h
@@ -0,0 +1,185 @@
+/**
+ * \file
+ *
+ * \brief I2C Master Hardware Proxy Layer(HPL) declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_I2C_M_SYNC_H_INCLUDED
+#define _HPL_I2C_M_SYNC_H_INCLUDED
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief i2c flags
+ */
+#define I2C_M_RD 0x0001 /* read data, from slave to master */
+#define I2C_M_BUSY 0x0100
+#define I2C_M_TEN 0x0400   /* this is a ten bit chip address */
+#define I2C_M_SEVEN 0x0800 /* this is a seven bit chip address */
+#define I2C_M_FAIL 0x1000
+#define I2C_M_STOP 0x8000 /* if I2C_FUNC_PROTOCOL_MANGLING */
+
+/**
+ * \brief i2c Return codes
+ */
+#define I2C_OK 0                     /* Operation successful */
+#define I2C_ACK -1                   /* Received ACK from device on I2C bus */
+#define I2C_NACK -2                  /* Received NACK from device on I2C bus */
+#define I2C_ERR_ARBLOST -3           /* Arbitration lost */
+#define I2C_ERR_BAD_ADDRESS -4       /* Bad address */
+#define I2C_ERR_BUS -5               /* Bus error */
+#define I2C_ERR_BUSY -6              /* Device busy */
+#define I2c_ERR_PACKAGE_COLLISION -7 /* Package collision */
+
+/**
+ * \brief i2c I2C Modes
+ */
+#define I2C_STANDARD_MODE 0x00
+#define I2C_FASTMODE 0x01
+#define I2C_HIGHSPEED_MODE 0x02
+
+/**
+ * \brief i2c master message structure
+ */
+struct _i2c_m_msg {
+	uint16_t          addr;
+	volatile uint16_t flags;
+	int32_t           len;
+	uint8_t *         buffer;
+};
+
+/**
+ * \brief i2c master service
+ */
+struct _i2c_m_service {
+	struct _i2c_m_msg msg;
+	uint16_t          mode;
+	uint16_t          trise;
+};
+
+/**
+ * \brief i2c sync master device structure
+ */
+struct _i2c_m_sync_device {
+	struct _i2c_m_service service;
+	void *                hw;
+};
+
+/**
+ * \name HPL functions
+ */
+
+/**
+ * \brief Initialize I2C
+ *
+ * This function does low level I2C configuration.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_init(struct _i2c_m_sync_device *const i2c_dev, void *const hw);
+
+/**
+ * \brief Deinitialize I2C
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_deinit(struct _i2c_m_sync_device *const i2c_dev);
+
+/**
+ * \brief Enable I2C module
+ *
+ * This function does low level I2C enable.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_enable(struct _i2c_m_sync_device *const i2c_dev);
+
+/**
+ * \brief Disable I2C module
+ *
+ * This function does low level I2C disable.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_disable(struct _i2c_m_sync_device *const i2c_dev);
+
+/**
+ * \brief Transfer data by I2C
+ *
+ * This function does low level I2C data transfer.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] msg The pointer to i2c msg structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_transfer(struct _i2c_m_sync_device *const i2c_dev, struct _i2c_m_msg *msg);
+
+/**
+ * \brief Set baud rate of I2C
+ *
+ * This function does low level I2C set baud rate.
+ *
+ * \param[in] i2c_dev The pointer to i2c device structure
+ * \param[in] clkrate The clock rate(KHz) input to i2c module
+ * \param[in] baudrate The demand baud rate(KHz) of i2c module
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_set_baudrate(struct _i2c_m_sync_device *const i2c_dev, uint32_t clkrate, uint32_t baudrate);
+
+/**
+ * \brief Send send condition on the I2C bus
+ *
+ * This function will generate a stop condition on the I2C bus
+ *
+ * \param[in] i2c_dev The pointer to i2c device struct
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_m_sync_send_stop(struct _i2c_m_sync_device *const i2c_dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hpl_i2c_s_async.h b/watch-library/hal/include/hpl_i2c_s_async.h
new file mode 100644
index 00000000..92a5765d
--- /dev/null
+++ b/watch-library/hal/include/hpl_i2c_s_async.h
@@ -0,0 +1,184 @@
+/**
+ * \file
+ *
+ * \brief I2C Slave Hardware Proxy Layer(HPL) declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_I2C_S_ASYNC_H_INCLUDED
+#define _HPL_I2C_S_ASYNC_H_INCLUDED
+
+#include "hpl_i2c_s_sync.h"
+#include "hpl_irq.h"
+#include "utils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief i2c callback types
+ */
+enum _i2c_s_async_callback_type { I2C_S_DEVICE_ERROR, I2C_S_DEVICE_TX, I2C_S_DEVICE_RX_COMPLETE };
+
+/**
+ * \brief Forward declaration of I2C Slave device
+ */
+struct _i2c_s_async_device;
+
+/**
+ * \brief i2c slave callback function type
+ */
+typedef void (*_i2c_s_async_cb_t)(struct _i2c_s_async_device *device);
+
+/**
+ * \brief i2c slave callback pointers structure
+ */
+struct _i2c_s_async_callback {
+	void (*error)(struct _i2c_s_async_device *const device);
+	void (*tx)(struct _i2c_s_async_device *const device);
+	void (*rx_done)(struct _i2c_s_async_device *const device, const uint8_t data);
+};
+
+/**
+ * \brief i2c slave device structure
+ */
+struct _i2c_s_async_device {
+	void *                       hw;
+	struct _i2c_s_async_callback cb;
+	struct _irq_descriptor       irq;
+};
+
+/**
+ * \name HPL functions
+ */
+
+/**
+ * \brief Initialize asynchronous I2C slave
+ *
+ * This function does low level I2C configuration.
+ *
+ * \param[in] device The pointer to i2c interrupt device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_init(struct _i2c_s_async_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize asynchronous I2C in interrupt mode
+ *
+ * \param[in] device The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_deinit(struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Enable I2C module
+ *
+ * This function does low level I2C enable.
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_enable(struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Disable I2C module
+ *
+ * This function does low level I2C disable.
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_disable(struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Check if 10-bit addressing mode is on
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Cheking status
+ * \retval 1 10-bit addressing mode is on
+ * \retval 0 10-bit addressing mode is off
+ */
+int32_t _i2c_s_async_is_10bit_addressing_on(const struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Set I2C slave address
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ * \param[in] address Address to set
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_set_address(struct _i2c_s_async_device *const device, const uint16_t address);
+
+/**
+ * \brief Write a byte to the given I2C instance
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ * \param[in] data Data to write
+ */
+void _i2c_s_async_write_byte(struct _i2c_s_async_device *const device, const uint8_t data);
+
+/**
+ * \brief Retrieve I2C slave status
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ *\return I2C slave status
+ */
+i2c_s_status_t _i2c_s_async_get_status(const struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Abort data transmission
+ *
+ * \param[in] device The pointer to i2c device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_async_abort_transmission(const struct _i2c_s_async_device *const device);
+
+/**
+ * \brief Enable/disable I2C slave interrupt
+ *
+ * param[in] device The pointer to I2C slave device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] disable Enable or disable
+ */
+int32_t _i2c_s_async_set_irq_state(struct _i2c_s_async_device *const device, const enum _i2c_s_async_callback_type type,
+                                   const bool disable);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HPL_I2C_S_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_i2c_s_sync.h b/watch-library/hal/include/hpl_i2c_s_sync.h
new file mode 100644
index 00000000..93b59345
--- /dev/null
+++ b/watch-library/hal/include/hpl_i2c_s_sync.h
@@ -0,0 +1,184 @@
+/**
+ * \file
+ *
+ * \brief I2C Slave Hardware Proxy Layer(HPL) declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_I2C_S_SYNC_H_INCLUDED
+#define _HPL_I2C_S_SYNC_H_INCLUDED
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief I2C Slave status type
+ */
+typedef uint32_t i2c_s_status_t;
+
+/**
+ * \brief i2c slave device structure
+ */
+struct _i2c_s_sync_device {
+	void *hw;
+};
+
+#include <compiler.h>
+
+/**
+ * \name HPL functions
+ */
+
+/**
+ * \brief Initialize synchronous I2C slave
+ *
+ * This function does low level I2C configuration.
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_init(struct _i2c_s_sync_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize synchronous I2C slave
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_deinit(struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Enable I2C module
+ *
+ * This function does low level I2C enable.
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_enable(struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Disable I2C module
+ *
+ * This function does low level I2C disable.
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_disable(struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Check if 10-bit addressing mode is on
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Cheking status
+ * \retval 1 10-bit addressing mode is on
+ * \retval 0 10-bit addressing mode is off
+ */
+int32_t _i2c_s_sync_is_10bit_addressing_on(const struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Set I2C slave address
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ * \param[in] address Address to set
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_set_address(struct _i2c_s_sync_device *const device, const uint16_t address);
+
+/**
+ * \brief Write a byte to the given I2C instance
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ * \param[in] data Data to write
+ */
+void _i2c_s_sync_write_byte(struct _i2c_s_sync_device *const device, const uint8_t data);
+
+/**
+ * \brief Retrieve I2C slave status
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ *\return I2C slave status
+ */
+i2c_s_status_t _i2c_s_sync_get_status(const struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Clear the Data Ready interrupt flag
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Return 0 for success and negative value for error
+ */
+int32_t _i2c_s_sync_clear_data_ready_flag(const struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Read a byte from the given I2C instance
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Data received via I2C interface.
+ */
+uint8_t _i2c_s_sync_read_byte(const struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Check if I2C is ready to send next byte
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Status of the ready check.
+ * \retval true if the I2C is ready to send next byte
+ * \retval false if the I2C is not ready to send next byte
+ */
+bool _i2c_s_sync_is_byte_sent(const struct _i2c_s_sync_device *const device);
+
+/**
+ * \brief Check if there is data received by I2C
+ *
+ * \param[in] device The pointer to i2c slave device structure
+ *
+ * \return Status of the data received check.
+ * \retval true if the I2C has received a byte
+ * \retval false if the I2C has not received a byte
+ */
+bool _i2c_s_sync_is_byte_received(const struct _i2c_s_sync_device *const device);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HPL_I2C_S_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_init.h b/watch-library/hal/include/hpl_init.h
new file mode 100644
index 00000000..71bf49c9
--- /dev/null
+++ b/watch-library/hal/include/hpl_init.h
@@ -0,0 +1,124 @@
+/**
+ * \file
+ *
+ * \brief Init related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_INIT_H_INCLUDED
+#define _HPL_INIT_H_INCLUDED
+
+/**
+ * \addtogroup HPL Init
+ *
+ * \section hpl_init_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initializes clock sources
+ */
+void _sysctrl_init_sources(void);
+
+/**
+ * \brief Initializes Power Manager
+ */
+void _pm_init(void);
+
+/**
+ * \brief Initialize generators
+ */
+void _gclk_init_generators(void);
+
+/**
+ * \brief Initialize 32 kHz clock sources
+ */
+void _osc32kctrl_init_sources(void);
+
+/**
+ * \brief Initialize clock sources
+ */
+void _oscctrl_init_sources(void);
+
+/**
+ * \brief Initialize clock sources that need input reference clocks
+ */
+void _sysctrl_init_referenced_generators(void);
+
+/**
+ * \brief Initialize clock sources that need input reference clocks
+ */
+void _oscctrl_init_referenced_generators(void);
+
+/**
+ * \brief Initialize master clock generator
+ */
+void _mclk_init(void);
+
+/**
+ * \brief Initialize clock generator
+ */
+void _lpmcu_misc_regs_init(void);
+
+/**
+ * \brief Initialize clock generator
+ */
+void _pmc_init(void);
+
+/**
+ * \brief Set performance level
+ *
+ * \param[in] level The performance level to set
+ */
+void _set_performance_level(const uint8_t level);
+
+/**
+ * \brief Initialize the chip
+ */
+void _init_chip(void);
+
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_INIT_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_irq.h b/watch-library/hal/include/hpl_irq.h
new file mode 100644
index 00000000..2894944a
--- /dev/null
+++ b/watch-library/hal/include/hpl_irq.h
@@ -0,0 +1,116 @@
+/**
+ * \file
+ *
+ * \brief IRQ related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_IRQ_H_INCLUDED
+#define _HPL_IRQ_H_INCLUDED
+
+/**
+ * \addtogroup HPL IRQ
+ *
+ * \section hpl_irq_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief IRQ descriptor
+ */
+struct _irq_descriptor {
+	void (*handler)(void *parameter);
+	void *parameter;
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Retrieve current IRQ number
+ *
+ * \return The current IRQ number
+ */
+uint8_t _irq_get_current(void);
+
+/**
+ * \brief Disable the given IRQ
+ *
+ * \param[in] n The number of IRQ to disable
+ */
+void _irq_disable(uint8_t n);
+
+/**
+ * \brief Set the given IRQ
+ *
+ * \param[in] n The number of IRQ to set
+ */
+void _irq_set(uint8_t n);
+
+/**
+ * \brief Clear the given IRQ
+ *
+ * \param[in] n The number of IRQ to clear
+ */
+void _irq_clear(uint8_t n);
+
+/**
+ * \brief Enable the given IRQ
+ *
+ * \param[in] n The number of IRQ to enable
+ */
+void _irq_enable(uint8_t n);
+
+/**
+ * \brief Register IRQ handler
+ *
+ * \param[in] number The number registered IRQ
+ * \param[in] irq The pointer to irq handler to register
+ *
+ * \return The status of IRQ handler registering
+ * \retval -1 Passed parameters were invalid
+ * \retval 0 The registering is completed successfully
+ */
+void _irq_register(const uint8_t number, struct _irq_descriptor *const irq);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_IRQ_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_missing_features.h b/watch-library/hal/include/hpl_missing_features.h
new file mode 100644
index 00000000..7071db29
--- /dev/null
+++ b/watch-library/hal/include/hpl_missing_features.h
@@ -0,0 +1,37 @@
+/**
+ * \file
+ *
+ * \brief Family-dependent missing features expected by HAL
+ *
+ * Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_MISSING_FEATURES
+#define _HPL_MISSING_FEATURES
+
+#endif /* _HPL_MISSING_FEATURES */
diff --git a/watch-library/hal/include/hpl_pwm.h b/watch-library/hal/include/hpl_pwm.h
new file mode 100644
index 00000000..ea056dea
--- /dev/null
+++ b/watch-library/hal/include/hpl_pwm.h
@@ -0,0 +1,105 @@
+/**
+ * \file
+ *
+ * \brief PWM related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+#ifndef _HPL_PWM_H_INCLUDED
+#define _HPL_PWM_H_INCLUDED
+
+/**
+ * \addtogroup HPL PWM
+ *
+ * \section hpl_pwm_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+#include "hpl_irq.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief PWM callback types
+ */
+enum _pwm_callback_type { PWM_DEVICE_PERIOD_CB, PWM_DEVICE_ERROR_CB };
+
+/**
+ * \brief PWM pulse-width period
+ */
+typedef uint32_t pwm_period_t;
+
+/**
+ * \brief PWM device structure
+ *
+ * The PWM device structure forward declaration.
+ */
+struct _pwm_device;
+
+/**
+ * \brief PWM interrupt callbacks
+ */
+struct _pwm_callback {
+	void (*pwm_period_cb)(struct _pwm_device *device);
+	void (*pwm_error_cb)(struct _pwm_device *device);
+};
+
+/**
+ * \brief PWM descriptor device structure
+ */
+struct _pwm_device {
+	struct _pwm_callback   callback;
+	struct _irq_descriptor irq;
+	void *                 hw;
+};
+
+/**
+ * \brief PWM functions, pointers to low-level functions
+ */
+struct _pwm_hpl_interface {
+	int32_t (*init)(struct _pwm_device *const device, void *const hw);
+	void (*deinit)(struct _pwm_device *const device);
+	void (*start_pwm)(struct _pwm_device *const device);
+	void (*stop_pwm)(struct _pwm_device *const device);
+	void (*set_pwm_param)(struct _pwm_device *const device, const pwm_period_t period, const pwm_period_t duty_cycle);
+	bool (*is_pwm_enabled)(const struct _pwm_device *const device);
+	pwm_period_t (*pwm_get_period)(const struct _pwm_device *const device);
+	uint32_t (*pwm_get_duty)(const struct _pwm_device *const device);
+	void (*set_irq_state)(struct _pwm_device *const device, const enum _pwm_callback_type type, const bool disable);
+};
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_PWM_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_reset.h b/watch-library/hal/include/hpl_reset.h
new file mode 100644
index 00000000..75738b6f
--- /dev/null
+++ b/watch-library/hal/include/hpl_reset.h
@@ -0,0 +1,92 @@
+/**
+ * \file
+ *
+ * \brief Reset related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_RESET_H_INCLUDED
+#define _HPL_RESET_H_INCLUDED
+
+/**
+ * \addtogroup HPL Reset
+ *
+ * \section hpl_reset_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#ifndef _UNIT_TEST_
+#include <compiler.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Reset reason enumeration
+ *
+ * The list of possible reset reasons.
+ */
+enum reset_reason {
+	RESET_REASON_POR    = 1,
+	RESET_REASON_BOD12  = 2,
+	RESET_REASON_BOD33  = 4,
+	RESET_REASON_EXT    = 16,
+	RESET_REASON_WDT    = 32,
+	RESET_REASON_SYST   = 64,
+	RESET_REASON_BACKUP = 128
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Retrieve the reset reason
+ *
+ * Retrieves the reset reason of the last MCU reset.
+ *
+ *\return An enum value indicating the reason of the last reset.
+ */
+enum reset_reason _get_reset_reason(void);
+
+/**
+ * \brief Reset MCU
+ */
+void _reset_mcu(void);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_RESET_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_slcd.h b/watch-library/hal/include/hpl_slcd.h
new file mode 100644
index 00000000..f3ccbbcd
--- /dev/null
+++ b/watch-library/hal/include/hpl_slcd.h
@@ -0,0 +1,49 @@
+/**
+ * \file
+ *
+ * \brief SLCD common declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef HPL_SLCD_H_INCLUDED
+#define HPL_SLCD_H_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SLCD_SEGID(com, seg) (((com) << 16) | (seg))
+#define SLCD_COMNUM(segid) (((segid) >> 16) & 0xFF)
+#define SLCD_SEGNUM(segid) ((segid)&0xFF)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HPL_SLCD_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_slcd_sync.h b/watch-library/hal/include/hpl_slcd_sync.h
new file mode 100644
index 00000000..2f5a05d7
--- /dev/null
+++ b/watch-library/hal/include/hpl_slcd_sync.h
@@ -0,0 +1,154 @@
+/**
+ * \file
+ *
+ * \brief SLCD Segment Liquid Crystal Display Controller(Sync) functionality
+ *        declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef HPL_SLCD_SYNC_H_INCLUDED
+#define HPL_SLCD_SYNC_H_INCLUDED
+
+#include <hpl_slcd.h>
+#include <utils_assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief SLCD sync device structure
+ *
+ * The SLCD device structure forward declaration.
+ */
+struct _slcd_sync_device;
+
+struct _slcd_sync_device {
+	void *hw; /*!< Hardware module instance handler */
+};
+
+/**
+ * \brief              Initialize SLCD Device Descriptor
+ *
+ * \param[in] desc     SLCD descriptor to be initialized
+ * \param[in] hw       The pointer to hardware instance
+ */
+int32_t _slcd_sync_init(struct _slcd_sync_device *const dev, void *const hw);
+
+/**
+ * \brief              Deinitialize SLCD Device Descriptor
+ *
+ * \param[in] desc     SLCD device descriptor to be deinitialized
+ */
+int32_t _slcd_sync_deinit(struct _slcd_sync_device *const dev);
+
+/**
+ * \brief              Enable SLCD driver
+ *
+ * \param[in] dev      SLCD device descriptor to be enabled
+ */
+int32_t _slcd_sync_enable(struct _slcd_sync_device *const dev);
+
+/**
+ * \brief              Disable SLCD driver
+ *
+ * \param[in] dev      SLCD Device descriptor to be disabled
+ */
+int32_t _slcd_sync_disable(struct _slcd_sync_device *const dev);
+
+/**
+ * \brief               Turn on a Segment
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] seg       Segment id
+ *                      value is (common terminals << 16 | segment terminal)
+ */
+int32_t _slcd_sync_seg_on(struct _slcd_sync_device *const dev, uint32_t seg);
+
+/**
+ * \brief               Turn off a Segment
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] seg       Segment id
+ *                      value is (common terminals << 16 | segment terminal)
+ */
+int32_t _slcd_sync_seg_off(struct _slcd_sync_device *const dev, uint32_t seg);
+
+/**
+ * \brief               Blink a Segment
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] seg       Segment index
+ *                      value is (common terminals << 16 | segment terminal)
+ * \param[in] period  Blink period, unit is million second
+ */
+int32_t _slcd_sync_seg_blink(struct _slcd_sync_device *const dev, uint32_t seg, const uint32_t period);
+
+/**
+ * \brief              Displays a character
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] character Character to be displayed
+ * \param[in] index     Index of Character Mapping Group
+ */
+int32_t _slcd_sync_write_char(struct _slcd_sync_device *const dev, const uint8_t character, uint32_t index);
+
+/**
+ * \brief               Start animation play by a segment array
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] segs      Segment array
+ * \param[in] len       Length of the segment array
+ * \param[in] period    Period(milliseconds) of the each segment to animation
+ */
+int32_t _slcd_sync_start_animation(struct _slcd_sync_device *const dev, const uint32_t segs[], uint32_t len,
+                                   const uint32_t period);
+
+/**
+ * \brief               Stop animation play by a segment array
+ *
+ * \param[in] dev       SLCD device descriptor
+ * \param[in] segs      Segment array
+ * \param[in] len       Length of the segment array
+ */
+int32_t _slcd_sync_stop_animation(struct _slcd_sync_device *const dev, const uint32_t segs[], uint32_t len);
+
+/**
+ * \brief               Set animation Frequency
+ *
+ * \param[in] dev       SLCD Device descriptor
+ * \param[in] period    Period(million second) of the each segment to animation
+ */
+int32_t _slcd_sync_set_animation_period(struct _slcd_sync_device *const dev, const uint32_t period);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/watch-library/hal/include/hpl_sleep.h b/watch-library/hal/include/hpl_sleep.h
new file mode 100644
index 00000000..6731ec30
--- /dev/null
+++ b/watch-library/hal/include/hpl_sleep.h
@@ -0,0 +1,88 @@
+/**
+ * \file
+ *
+ * \brief Sleep related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SLEEP_H_INCLUDED
+#define _HPL_SLEEP_H_INCLUDED
+
+/**
+ * \addtogroup HPL Sleep
+ *
+ * \section hpl_sleep_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#ifndef _UNIT_TEST_
+#include <compiler.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Set the sleep mode for the device
+ *
+ * This function sets the sleep mode for the device.
+ * For an overview of which systems are disabled in sleep for the different
+ * sleep modes see datasheet.
+ *
+ * \param[in] mode Sleep mode to use
+ *
+ * \return the status of a sleep request
+ * \retval -1 The requested sleep mode was invalid
+ * \retval  0 The operation completed successfully, sleep mode is set
+ */
+int32_t _set_sleep_mode(const uint8_t mode);
+
+/**
+ * \brief Reset MCU
+ */
+void _reset_mcu(void);
+
+/**
+ * \brief Put MCU to sleep
+ */
+void _go_to_sleep(void);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_SLEEP_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi.h b/watch-library/hal/include/hpl_spi.h
new file mode 100644
index 00000000..a5652e50
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi.h
@@ -0,0 +1,163 @@
+/**
+ * \file
+ *
+ * \brief SPI related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_H_INCLUDED
+#define _HPL_SPI_H_INCLUDED
+
+#include <compiler.h>
+#include <utils.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief SPI Dummy char is used when reading data from the SPI slave
+ */
+#define SPI_DUMMY_CHAR 0x1ff
+
+/**
+ *  \brief SPI message to let driver to process
+ */
+//@{
+struct spi_msg {
+	/** Pointer to the output data buffer */
+	uint8_t *txbuf;
+	/** Pointer to the input data buffer */
+	uint8_t *rxbuf;
+	/** Size of the message data in SPI characters */
+	uint32_t size;
+};
+//@}
+
+/**
+ *  \brief SPI transfer modes
+ *  SPI transfer mode controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ */
+enum spi_transfer_mode {
+	/** Leading edge is rising edge, data sample on leading edge. */
+	SPI_MODE_0,
+	/** Leading edge is rising edge, data sample on trailing edge. */
+	SPI_MODE_1,
+	/** Leading edge is falling edge, data sample on leading edge. */
+	SPI_MODE_2,
+	/** Leading edge is falling edge, data sample on trailing edge. */
+	SPI_MODE_3
+};
+
+/**
+ *  \brief SPI character sizes
+ *  The character size influence the way the data is sent/received.
+ *  For char size <= 8 data is stored byte by byte.
+ *  For char size between 9 ~ 16 data is stored in 2-byte length.
+ *  Note that the default and recommended char size is 8 bit since it's
+ *  supported by all system.
+ */
+enum spi_char_size {
+	/** Character size is 8 bit. */
+	SPI_CHAR_SIZE_8 = 0,
+	/** Character size is 9 bit. */
+	SPI_CHAR_SIZE_9 = 1,
+	/** Character size is 10 bit. */
+	SPI_CHAR_SIZE_10 = 2,
+	/** Character size is 11 bit. */
+	SPI_CHAR_SIZE_11 = 3,
+	/** Character size is 12 bit. */
+	SPI_CHAR_SIZE_12 = 4,
+	/** Character size is 13 bit. */
+	SPI_CHAR_SIZE_13 = 5,
+	/** Character size is 14 bit. */
+	SPI_CHAR_SIZE_14 = 6,
+	/** Character size is 15 bit. */
+	SPI_CHAR_SIZE_15 = 7,
+	/** Character size is 16 bit. */
+	SPI_CHAR_SIZE_16 = 8
+};
+
+/**
+ *  \brief SPI data order
+ */
+enum spi_data_order {
+	/** MSB goes first. */
+	SPI_DATA_ORDER_MSB_1ST = 0,
+	/** LSB goes first. */
+	SPI_DATA_ORDER_LSB_1ST = 1
+};
+
+/** \brief Transfer descriptor for SPI
+ *  Transfer descriptor holds TX and RX buffers
+ */
+struct spi_xfer {
+	/** Pointer to data buffer to TX */
+	uint8_t *txbuf;
+	/** Pointer to data buffer to RX */
+	uint8_t *rxbuf;
+	/** Size of data characters to TX & RX */
+	uint32_t size;
+};
+
+/** SPI generic driver. */
+struct spi_dev {
+	/** Pointer to the hardware base or private data for special device. */
+	void *prvt;
+	/** Reference start of sync/async variables */
+	uint32_t sync_async_misc[1];
+};
+
+/**
+ *  \brief Calculate the baudrate value for hardware to use to set baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] clk Clock frequency (Hz) for baudrate generation.
+ *  \param[in] baud Target baudrate (bps).
+ *  \return Error or baudrate value.
+ *  \retval >0 Baudrate value.
+ *  \retval ERR_INVALID_ARG Calculation fail.
+ */
+int32_t _spi_calc_baud_val(struct spi_dev *dev, const uint32_t clk, const uint32_t baud);
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_async.h b/watch-library/hal/include/hpl_spi_async.h
new file mode 100644
index 00000000..8e5a8485
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_async.h
@@ -0,0 +1,131 @@
+/**
+ * \file
+ *
+ * \brief Common SPI related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_ASYNC_H_INCLUDED
+#define _HPL_SPI_ASYNC_H_INCLUDED
+
+#include <hpl_spi.h>
+#include <hpl_irq.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  \brief Callbacks the SPI driver must offer in async mode
+ */
+//@{
+/** The callback types */
+enum _spi_async_dev_cb_type {
+	/** Callback type for transmit, see \ref _spi_async_dev_cb_xfer_t. */
+	SPI_DEV_CB_TX,
+	/** Callback type for receive, see \ref _spi_async_dev_cb_xfer_t. */
+	SPI_DEV_CB_RX,
+	/** Callback type for \ref _spi_async_dev_cb_complete_t. */
+	SPI_DEV_CB_COMPLETE,
+	/** Callback type for error */
+	SPI_DEV_CB_ERROR,
+	/** Number of callbacks. */
+	SPI_DEV_CB_N
+};
+
+struct _spi_async_dev;
+
+/** \brief The prototype for callback on SPI transfer error.
+ *  If status code is zero, it indicates the normal completion, that is,
+ *  SS deactivation.
+ *  If status code belows zero, it indicates complete.
+ */
+typedef void (*_spi_async_dev_cb_error_t)(struct _spi_async_dev *dev, int32_t status);
+
+/** \brief The prototype for callback on SPI transmit/receive event
+ *  For TX, the callback is invoked when transmit is done or ready to start
+ *  transmit.
+ *  For RX, the callback is invoked when receive is done or ready to read data,
+ *  see \ref _spi_async_dev_read_one_t on data reading.
+ *  Without DMA enabled, the callback is invoked on each character event.
+ *  With DMA enabled, the callback is invoked on DMA buffer done.
+ */
+typedef void (*_spi_async_dev_cb_xfer_t)(struct _spi_async_dev *dev);
+
+/**
+ *  \brief The callbacks offered by SPI driver
+ */
+struct _spi_async_dev_callbacks {
+	/** TX callback, see \ref _spi_async_dev_cb_xfer_t. */
+	_spi_async_dev_cb_xfer_t tx;
+	/** RX callback, see \ref _spi_async_dev_cb_xfer_t. */
+	_spi_async_dev_cb_xfer_t rx;
+	/** Complete or complete callback, see \ref _spi_async_dev_cb_complete_t. */
+	_spi_async_dev_cb_xfer_t complete;
+	/** Error callback, see \ref */
+	_spi_async_dev_cb_error_t err;
+};
+//@}
+
+/**
+ *  \brief SPI async driver
+ */
+//@{
+
+/** SPI driver to support async HAL */
+struct _spi_async_dev {
+	/** Pointer to the hardware base or private data for special device. */
+	void *prvt;
+	/** Data size, number of bytes for each character */
+	uint8_t char_size;
+	/** Dummy byte used in master mode when reading the slave */
+	uint16_t dummy_byte;
+
+	/** \brief Pointer to callback functions, ignored for polling mode
+	 *  Pointer to the callback functions so that initialize the driver to
+	 *  handle interrupts.
+	 */
+	struct _spi_async_dev_callbacks callbacks;
+	/** IRQ instance for SPI device. */
+	struct _irq_descriptor irq;
+};
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_m_async.h b/watch-library/hal/include/hpl_spi_m_async.h
new file mode 100644
index 00000000..8d3555ed
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_m_async.h
@@ -0,0 +1,243 @@
+/**
+ * \file
+ *
+ * \brief SPI Slave Async related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_M_ASYNC_H_INCLUDED
+#define _HPL_SPI_M_ASYNC_H_INCLUDED
+
+#include <hpl_spi.h>
+#include <hpl_spi_async.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Uses common SPI async device driver. */
+#define _spi_m_async_dev _spi_async_dev
+
+#define _spi_m_async_dev_cb_type _spi_async_dev_cb_type
+
+/** Uses common SPI async device driver complete callback type. */
+#define _spi_m_async_dev_cb_error_t _spi_async_dev_cb_error_t
+
+/** Uses common SPI async device driver transfer callback type. */
+#define _spi_m_async_dev_cb_xfer_t _spi_async_dev_cb_xfer_t
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  It will load default hardware configuration and software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval ERR_DENIED SPI has been enabled.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_init(struct _spi_m_async_dev *dev, void *const hw);
+
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  Disable, reset the hardware and the software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_deinit(struct _spi_m_async_dev *dev);
+
+/**
+ *  \brief Enable SPI for access with interrupts
+ *  Enable the SPI and enable callback generation of receive and error
+ *  interrupts.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_enable(struct _spi_m_async_dev *dev);
+
+/**
+ *  \brief Disable SPI for access without interrupts
+ *  Disable SPI and interrupts. Deactivate all CS pins if works as master.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_disable(struct _spi_m_async_dev *dev);
+
+/**
+ *  \brief Set SPI transfer mode
+ *  Set SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] mode The SPI transfer mode.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_set_mode(struct _spi_m_async_dev *dev, const enum spi_transfer_mode mode);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] baud_val The SPI baudrate value, see \ref _spi_calc_baud_val() on
+ *                  how it's generated.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_set_baudrate(struct _spi_m_async_dev *dev, const uint32_t baud_val);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] char_size The character size, see \ref spi_char_size.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_set_char_size(struct _spi_m_async_dev *dev, const enum spi_char_size char_size);
+
+/**
+ *  \brief Set SPI data order
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] dord SPI data order (LSB/MSB first).
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_async_set_data_order(struct _spi_m_async_dev *dev, const enum spi_data_order dord);
+
+/**
+ * \brief Enable interrupt on character output
+ *
+ * Enable interrupt when a new character can be written
+ * to the SPI device.
+ *
+ * \param[in] dev   Pointer to the SPI device instance
+ * \param[in] state true  = enable output interrupt
+ *                  false = disable output interrupt
+ *
+ * \return Status code
+ * \retval 0 Ok status
+ */
+int32_t _spi_m_async_enable_tx(struct _spi_m_async_dev *dev, bool state);
+
+/**
+ * \brief Enable interrupt on character input
+ *
+ * Enable interrupt when a new character is ready to be
+ * read from the SPI device.
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ * \param[in] state true  = enable input interrupts
+ *                  false = disable input interrupt
+ *
+ * \return Status code
+ * \retvat 0 OK Status
+ */
+int32_t _spi_m_async_enable_rx(struct _spi_m_async_dev *dev, bool state);
+
+/**
+ * \brief Enable interrupt on after data transmission complate
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ * \param[in] state true  = enable input interrupts
+ *                  false = disable input interrupt
+ *
+ * \return Status code
+ * \retvat 0 OK Status
+ */
+int32_t _spi_m_async_enable_tx_complete(struct _spi_m_async_dev *dev, bool state);
+
+/**
+ *  \brief Read one character to SPI device instance
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *
+ *  \return Character read from SPI module
+ */
+uint16_t _spi_m_async_read_one(struct _spi_m_async_dev *dev);
+
+/**
+ *  \brief Write one character to assigned buffer
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] data
+ *
+ *  \return Status code of write operation
+ *  \retval 0 Write operation OK
+ */
+int32_t _spi_m_async_write_one(struct _spi_m_async_dev *dev, uint16_t data);
+
+/**
+ *  \brief Register the SPI device callback
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] cb_type The callback type.
+ *  \param[in] func The callback function to register. NULL to disable callback.
+ *  \return Always 0.
+ */
+int32_t _spi_m_async_register_callback(struct _spi_m_async_dev *dev, const enum _spi_m_async_dev_cb_type cb_type,
+                                       const FUNC_PTR func);
+
+/**
+ * \brief Enable/disable SPI master interrupt
+ *
+ * param[in] device The pointer to SPI master device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] state Enable or disable
+ */
+void _spi_m_async_set_irq_state(struct _spi_m_async_dev *const device, const enum _spi_m_async_dev_cb_type type,
+                                const bool state);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_M_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_m_dma.h b/watch-library/hal/include/hpl_spi_m_dma.h
new file mode 100644
index 00000000..2b48300e
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_m_dma.h
@@ -0,0 +1,182 @@
+/**
+ * \file
+ *
+ * \brief SPI Master DMA related functionality declaration.
+ *
+ * Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_M_DMA_H_INCLUDED
+#define _HPL_SPI_M_DMA_H_INCLUDED
+
+#include <hpl_spi.h>
+#include <hpl_spi_dma.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Uses common SPI dma device driver. */
+#define _spi_m_dma_dev _spi_dma_dev
+
+#define _spi_m_dma_dev_cb_type _spi_dma_dev_cb_type
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  It will load default hardware configuration and software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval ERR_DENIED SPI has been enabled.
+ *  \retval 0 ERR_NONE is operation done successfully.
+ */
+int32_t _spi_m_dma_init(struct _spi_m_dma_dev *dev, void *const hw);
+
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  Disable, reset the hardware and the software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 ERR_NONE is operation done successfully.
+ */
+int32_t _spi_m_dma_deinit(struct _spi_m_dma_dev *dev);
+
+/**
+ *  \brief Enable SPI for access with interrupts
+ *  Enable the SPI and enable callback generation of receive and error
+ *  interrupts.
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval 0 ERR_NONE is operation done successfully.
+ */
+int32_t _spi_m_dma_enable(struct _spi_m_dma_dev *dev);
+
+/**
+ *  \brief Disable SPI for access without interrupts
+ *  Disable SPI and interrupts. Deactivate all CS pins if works as master.
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 ERR_NONE is operation done successfully.
+ */
+int32_t _spi_m_dma_disable(struct _spi_m_dma_dev *dev);
+
+/**
+ *  \brief Set SPI transfer mode
+ *  Set SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \param[in] mode The SPI transfer mode.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 ERR_NONE is operation done successfully.
+ */
+int32_t _spi_m_dma_set_mode(struct _spi_m_dma_dev *dev, const enum spi_transfer_mode mode);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \param[in] baud_val The SPI baudrate value, see \ref _spi_calc_baud_val() on
+ *                  how it's generated.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_dma_set_baudrate(struct _spi_m_dma_dev *dev, const uint32_t baud_val);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] char_size The character size, see \ref spi_char_size.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_dma_set_char_size(struct _spi_m_dma_dev *dev, const enum spi_char_size char_size);
+
+/**
+ *  \brief Set SPI data order
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \param[in] dord SPI data order (LSB/MSB first).
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_dma_set_data_order(struct _spi_m_dma_dev *dev, const enum spi_data_order dord);
+
+/**
+ *  \brief Register the SPI device callback
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \param[in] cb_type The callback type.
+ *  \param[in] func The callback function to register. NULL to disable callback.
+ *  \return Always 0.
+ */
+void _spi_m_dma_register_callback(struct _spi_m_dma_dev *dev, enum _spi_dma_dev_cb_type, _spi_dma_cb_t func);
+
+/** \brief Do SPI data transfer (TX & RX) with DMA
+ *  Log the TX & RX buffers and transfer them in background. It never blocks.
+ *
+ *  \param[in] dev Pointer to the SPI device instance.
+ *  \param[in] txbuf Pointer to the transfer information (\ref spi_transfer).
+ *  \param[out] rxbuf Pointer to the receiver information (\ref spi_receive).
+ *  \param[in] length spi transfer data length.
+ *
+ *  \return Operation status.
+ *  \retval ERR_NONE Success.
+ *  \retval ERR_BUSY Busy.
+ */
+int32_t _spi_m_dma_transfer(struct _spi_m_dma_dev *dev, uint8_t const *txbuf, uint8_t *const rxbuf,
+                            const uint16_t length);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_M_DMA_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_m_sync.h b/watch-library/hal/include/hpl_spi_m_sync.h
new file mode 100644
index 00000000..38df15b4
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_m_sync.h
@@ -0,0 +1,166 @@
+/**
+ * \file
+ *
+ * \brief SPI related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_M_SYNC_H_INCLUDED
+#define _HPL_SPI_M_SYNC_H_INCLUDED
+
+#include <hpl_spi.h>
+#include <hpl_spi_sync.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Uses common SPI sync device driver. */
+#define _spi_m_sync_dev _spi_sync_dev
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ *  \brief Initialize SPI for access without interrupts
+ *  It will load default hardware configuration and software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval ERR_DENIED SPI has been enabled.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_init(struct _spi_m_sync_dev *dev, void *const hw);
+
+/**
+ *  \brief Deinitialize SPI
+ *  Disable, reset the hardware and the software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_deinit(struct _spi_m_sync_dev *dev);
+
+/**
+ *  \brief Enable SPI for access without interrupts
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_enable(struct _spi_m_sync_dev *dev);
+
+/**
+ *  \brief Disable SPI for access without interrupts
+ *  Disable SPI. Deactivate all CS pins if works as master.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_disable(struct _spi_m_sync_dev *dev);
+
+/**
+ *  \brief Set SPI transfer mode
+ *  Set SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] mode The SPI transfer mode.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_set_mode(struct _spi_m_sync_dev *dev, const enum spi_transfer_mode mode);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] baud_val The SPI baudrate value, see \ref _spi_calc_baud_val() on
+ *                  how it's generated.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_set_baudrate(struct _spi_m_sync_dev *dev, const uint32_t baud_val);
+
+/**
+ *  \brief Set SPI char size
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] char_size The character size, see \ref spi_char_size.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_set_char_size(struct _spi_m_sync_dev *dev, const enum spi_char_size char_size);
+
+/**
+ *  \brief Set SPI data order
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] dord SPI data order (LSB/MSB first).
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_m_sync_set_data_order(struct _spi_m_sync_dev *dev, const enum spi_data_order dord);
+
+/**
+ *  \brief Transfer the whole message without interrupt
+ *  Transfer the message, it will keep waiting until the message finish or
+ *  error.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] msg Pointer to the message instance to process.
+ *  \return Error or number of characters transferred.
+ *  \retval ERR_BUSY SPI hardware is not ready to start transfer (not
+ *                   enabled, busy applying settings, ...).
+ *  \retval SPI_ERR_OVERFLOW Overflow error.
+ *  \retval >=0 Number of characters transferred.
+ */
+int32_t _spi_m_sync_trans(struct _spi_m_sync_dev *dev, const struct spi_msg *msg);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_M_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_s_async.h b/watch-library/hal/include/hpl_spi_s_async.h
new file mode 100644
index 00000000..56472439
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_s_async.h
@@ -0,0 +1,232 @@
+/**
+ * \file
+ *
+ * \brief SPI Slave Async related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_S_ASYNC_H_INCLUDED
+#define _HPL_SPI_S_ASYNC_H_INCLUDED
+
+#include <hpl_spi_async.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Uses common SPI async device driver. */
+#define _spi_s_async_dev _spi_async_dev
+
+#define _spi_s_async_dev_cb_type _spi_async_dev_cb_type
+
+/** Uses common SPI async device driver complete callback type. */
+#define _spi_m_async_dev_cb_error_t _spi_async_dev_cb_error_t
+
+/** Uses common SPI async device driver transfer callback type. */
+#define _spi_s_async_dev_cb_xfer_t _spi_async_dev_cb_xfer_t
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  It will load default hardware configuration and software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval ERR_DENIED SPI has been enabled.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_init(struct _spi_s_async_dev *dev, void *const hw);
+
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  Disable, reset the hardware and the software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_deinit(struct _spi_s_async_dev *dev);
+
+/**
+ *  \brief Enable SPI for access with interrupts
+ *  Enable the SPI and enable callback generation of receive and error
+ *  interrupts.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_enable(struct _spi_s_async_dev *dev);
+
+/**
+ *  \brief Disable SPI for access without interrupts
+ *  Disable SPI and interrupts. Deactivate all CS pins if works as master.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_disable(struct _spi_s_async_dev *dev);
+
+/**
+ *  \brief Set SPI transfer mode
+ *  Set SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] mode The SPI transfer mode.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_set_mode(struct _spi_s_async_dev *dev, const enum spi_transfer_mode mode);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] char_size The character size, see \ref spi_char_size.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_set_char_size(struct _spi_s_async_dev *dev, const enum spi_char_size char_size);
+
+/**
+ *  \brief Set SPI data order
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] dord SPI data order (LSB/MSB first).
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_async_set_data_order(struct _spi_s_async_dev *dev, const enum spi_data_order dord);
+
+/**
+ * \brief Enable interrupt on character output
+ *
+ * Enable interrupt when a new character can be written
+ * to the SPI device.
+ *
+ * \param[in] dev   Pointer to the SPI device instance
+ * \param[in] state true  = enable output interrupt
+ *                  false = disable output interrupt
+ *
+ * \return Status code
+ * \retval 0 Ok status
+ */
+int32_t _spi_s_async_enable_tx(struct _spi_s_async_dev *dev, bool state);
+
+/**
+ * \brief Enable interrupt on character input
+ *
+ * Enable interrupt when a new character is ready to be
+ * read from the SPI device.
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ * \param[in] state true  = enable input interrupts
+ *                  false = disable input interrupt
+ *
+ * \return Status code
+ * \retvat 0 OK Status
+ */
+int32_t _spi_s_async_enable_rx(struct _spi_s_async_dev *dev, bool state);
+
+/**
+ * \brief Enable interrupt on Slave Select (SS) rising
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ * \param[in] state true  = enable input interrupts
+ *                  false = disable input interrupt
+ *
+ * \return Status code
+ * \retvat 0 OK Status
+ */
+int32_t _spi_s_async_enable_ss_detect(struct _spi_s_async_dev *dev, bool state);
+
+/**
+ *  \brief Read one character to SPI device instance
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *
+ *  \return Character read from SPI module
+ */
+uint16_t _spi_s_async_read_one(struct _spi_s_async_dev *dev);
+
+/**
+ *  \brief Write one character to assigned buffer
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] data
+ *
+ *  \return Status code of write operation
+ *  \retval 0 Write operation OK
+ */
+int32_t _spi_s_async_write_one(struct _spi_s_async_dev *dev, uint16_t data);
+
+/**
+ *  \brief Register the SPI device callback
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] cb_type The callback type.
+ *  \param[in] func The callback function to register. NULL to disable callback.
+ *  \return Always 0.
+ */
+int32_t _spi_s_async_register_callback(struct _spi_s_async_dev *dev, const enum _spi_s_async_dev_cb_type cb_type,
+                                       const FUNC_PTR func);
+
+/**
+ * \brief Enable/disable SPI slave interrupt
+ *
+ * param[in] device The pointer to SPI slave device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] state Enable or disable
+ */
+void _spi_s_async_set_irq_state(struct _spi_s_async_dev *const device, const enum _spi_async_dev_cb_type type,
+                                const bool state);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_S_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_s_sync.h b/watch-library/hal/include/hpl_spi_s_sync.h
new file mode 100644
index 00000000..ff4c811a
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_s_sync.h
@@ -0,0 +1,232 @@
+/**
+ * \file
+ *
+ * \brief SPI related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_S_SYNC_H_INCLUDED
+#define _HPL_SPI_S_SYNC_H_INCLUDED
+
+#include <hpl_spi_sync.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Uses common SPI sync device driver. */
+#define _spi_s_sync_dev _spi_sync_dev
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ *  \brief Initialize SPI for access without interrupts
+ *  It will load default hardware configuration and software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] hw Pointer to the hardware base.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG Input parameter problem.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval ERR_DENIED SPI has been enabled.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_init(struct _spi_s_sync_dev *dev, void *const hw);
+
+/**
+ *  \brief Initialize SPI for access with interrupts
+ *  Disable, reset the hardware and the software struct.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_deinit(struct _spi_s_sync_dev *dev);
+
+/**
+ *  \brief Enable SPI for access without interrupts
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI hardware not ready (resetting).
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_enable(struct _spi_s_sync_dev *dev);
+
+/**
+ *  \brief Disable SPI for access without interrupts
+ *  Disable SPI. Deactivate all CS pins if works as master.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \return Operation status.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_disable(struct _spi_s_sync_dev *dev);
+
+/**
+ *  \brief Set SPI transfer mode
+ *  Set SPI transfer mode (\ref spi_transfer_mode),
+ *  which controls clock polarity and clock phase.
+ *  Mode 0: leading edge is rising edge, data sample on leading edge.
+ *  Mode 1: leading edge is rising edge, data sample on trailing edge.
+ *  Mode 2: leading edge is falling edge, data sample on leading edge.
+ *  Mode 3: leading edge is falling edge, data sample on trailing edge.
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] mode The SPI transfer mode.
+ *  \return Operation status.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_set_mode(struct _spi_s_sync_dev *dev, const enum spi_transfer_mode mode);
+
+/**
+ *  \brief Set SPI baudrate
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] char_size The character size, see \ref spi_char_size.
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_set_char_size(struct _spi_s_sync_dev *dev, const enum spi_char_size char_size);
+
+/**
+ *  \brief Set SPI data order
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] dord SPI data order (LSB/MSB first).
+ *  \return Operation status.
+ *  \retval ERR_INVALID_ARG The character size is not supported.
+ *  \retval ERR_BUSY SPI is not ready to accept new setting.
+ *  \retval 0 Operation done successfully.
+ */
+int32_t _spi_s_sync_set_data_order(struct _spi_s_sync_dev *dev, const enum spi_data_order dord);
+
+/**
+ * \brief Enable interrupt on character output
+ *
+ * Enable interrupt when a new character can be written
+ * to the SPI device.
+ *
+ * \param[in] dev   Pointer to the SPI device instance
+ * \param[in] state true  = enable output interrupt
+ *                  false = disable output interrupt
+ *
+ * \return Status code
+ * \retval 0 Ok status
+ */
+int32_t _spi_s_sync_enable_tx(struct _spi_s_sync_dev *dev, bool state);
+
+/**
+ * \brief Enable interrupt on character input
+ *
+ * Enable interrupt when a new character is ready to be
+ * read from the SPI device.
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ * \param[in] state true  = enable input interrupts
+ *                  false = disable input interrupt
+ *
+ * \return Status code
+ * \retval 0 OK Status
+ */
+int32_t _spi_s_sync_enable_rx(struct _spi_s_sync_dev *dev, bool state);
+
+/**
+ *  \brief Read one character to SPI device instance
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *
+ *  \return Character read from SPI module
+ */
+uint16_t _spi_s_sync_read_one(struct _spi_s_sync_dev *dev);
+
+/**
+ *  \brief Write one character to assigned buffer
+ *  \param[in, out] dev Pointer to the SPI device instance.
+ *  \param[in] data
+ *
+ *  \return Status code of write operation
+ *  \retval 0 Write operation OK
+ */
+int32_t _spi_s_sync_write_one(struct _spi_s_sync_dev *dev, uint16_t data);
+
+/**
+ * \brief Check if TX ready
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ *
+ * \return TX ready state
+ * \retval true TX ready
+ * \retval false TX not ready
+ */
+bool _spi_s_sync_is_tx_ready(struct _spi_s_sync_dev *dev);
+
+/**
+ * \brief Check if RX character ready
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ *
+ * \return RX character ready state
+ * \retval true RX character ready
+ * \retval false RX character not ready
+ */
+bool _spi_s_sync_is_rx_ready(struct _spi_s_sync_dev *dev);
+
+/**
+ * \brief Check if SS deactiviation detected
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ *
+ * \return SS deactiviation state
+ * \retval true SS deactiviation detected
+ * \retval false SS deactiviation not detected
+ */
+bool _spi_s_sync_is_ss_deactivated(struct _spi_s_sync_dev *dev);
+
+/**
+ * \brief Check if error is detected
+ *
+ * \param[in] dev  Pointer to the SPI device instance
+ *
+ * \return Error detection state
+ * \retval true Error detected
+ * \retval false Error not detected
+ */
+bool _spi_s_sync_is_error(struct _spi_s_sync_dev *dev);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_S_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_spi_sync.h b/watch-library/hal/include/hpl_spi_sync.h
new file mode 100644
index 00000000..dc88648f
--- /dev/null
+++ b/watch-library/hal/include/hpl_spi_sync.h
@@ -0,0 +1,70 @@
+/**
+ * \file
+ *
+ * \brief Common SPI related functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SPI_SYNC_H_INCLUDED
+#define _HPL_SPI_SYNC_H_INCLUDED
+
+#include <compiler.h>
+#include <utils.h>
+
+#include <hpl_spi.h>
+
+/**
+ * \addtogroup hpl_spi HPL SPI
+ *
+ * \section hpl_spi_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** SPI driver to support sync HAL */
+struct _spi_sync_dev {
+	/** Pointer to the hardware base or private data for special device. */
+	void *prvt;
+	/** Data size, number of bytes for each character */
+	uint8_t char_size;
+	/** Dummy byte used in master mode when reading the slave */
+	uint16_t dummy_byte;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+#endif /* ifndef _HPL_SPI_SYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_time_measure.h b/watch-library/hal/include/hpl_time_measure.h
new file mode 100644
index 00000000..5d688df5
--- /dev/null
+++ b/watch-library/hal/include/hpl_time_measure.h
@@ -0,0 +1,94 @@
+/**
+ * \file
+ *
+ * \brief Time measure related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_TIME_MEASURE_H_INCLUDED
+#define _HPL_TIME_MEASURE_H_INCLUDED
+
+/**
+ * \addtogroup HPL Time measure
+ *
+ * \section hpl_time_measure_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief System time type
+ */
+typedef uint32_t system_time_t;
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize system time module
+ *
+ * \param[in] hw The pointer to hardware instance to initialize
+ */
+void _system_time_init(void *const hw);
+
+/**
+ * \brief Deinitialize system time module
+ *
+ * \param[in] hw The pointer to hardware instance to initialize
+ */
+void _system_time_deinit(void *const hw);
+
+/**
+ * \brief Get system time
+ *
+ * \param[in] hw The pointer to hardware instance to initialize
+ */
+system_time_t _system_time_get(const void *const hw);
+
+/**
+ * \brief Get maximum possible system time
+ *
+ * \param[in] hw The pointer to hardware instance to initialize
+ */
+system_time_t _system_time_get_max_time_value(const void *const hw);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_TIME_MEASURE_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_timer.h b/watch-library/hal/include/hpl_timer.h
new file mode 100644
index 00000000..9bdfbb77
--- /dev/null
+++ b/watch-library/hal/include/hpl_timer.h
@@ -0,0 +1,160 @@
+/**
+ * \file
+ *
+ * \brief Timer related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_TIMER_H_INCLUDED
+#define _HPL_TIMER_H_INCLUDED
+
+/**
+ * \addtogroup HPL Timer
+ *
+ * \section hpl_timer_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+#include <hpl_irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Timer device structure
+ *
+ * The Timer device structure forward declaration.
+ */
+struct _timer_device;
+
+/**
+ * \brief Timer interrupt callbacks
+ */
+struct _timer_callbacks {
+	void (*period_expired)(struct _timer_device *device);
+};
+
+/**
+ * \brief Timer device structure
+ */
+struct _timer_device {
+	struct _timer_callbacks timer_cb;
+	struct _irq_descriptor  irq;
+	void *                  hw;
+};
+
+/**
+ * \brief Timer functions, pointers to low-level functions
+ */
+struct _timer_hpl_interface {
+	int32_t (*init)(struct _timer_device *const device, void *const hw);
+	void (*deinit)(struct _timer_device *const device);
+	void (*start_timer)(struct _timer_device *const device);
+	void (*stop_timer)(struct _timer_device *const device);
+	void (*set_timer_period)(struct _timer_device *const device, const uint32_t clock_cycles);
+	uint32_t (*get_period)(const struct _timer_device *const device);
+	bool (*is_timer_started)(const struct _timer_device *const device);
+	void (*set_timer_irq)(struct _timer_device *const device);
+};
+/**
+ * \brief Initialize TCC
+ *
+ * This function does low level TCC configuration.
+ *
+ * \param[in] device The pointer to timer device instance
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status.
+ */
+int32_t _timer_init(struct _timer_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize TCC
+ *
+ * \param[in] device The pointer to timer device instance
+ */
+void _timer_deinit(struct _timer_device *const device);
+
+/**
+ * \brief Start hardware timer
+ *
+ * \param[in] device The pointer to timer device instance
+ */
+void _timer_start(struct _timer_device *const device);
+
+/**
+ * \brief Stop hardware timer
+ *
+ * \param[in] device The pointer to timer device instance
+ */
+void _timer_stop(struct _timer_device *const device);
+
+/**
+ * \brief Set timer period
+ *
+ * \param[in] device The pointer to timer device instance
+ */
+void _timer_set_period(struct _timer_device *const device, const uint32_t clock_cycles);
+
+/**
+ * \brief Retrieve timer period
+ *
+ * \param[in] device The pointer to timer device instance
+ *
+ * \return Timer period
+ */
+uint32_t _timer_get_period(const struct _timer_device *const device);
+
+/**
+ * \brief Check if timer is running
+ *
+ * \param[in] device The pointer to timer device instance
+ *
+ * \return Check status.
+ * \retval true The given timer is running
+ * \retval false The given timer is not running
+ */
+bool _timer_is_started(const struct _timer_device *const device);
+
+/**
+ * \brief Set timer IRQ
+ *
+ * \param[in] device The pointer to timer device instance
+ */
+void _timer_set_irq(struct _timer_device *const device);
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_TIMER_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_usart.h b/watch-library/hal/include/hpl_usart.h
new file mode 100644
index 00000000..0e09501d
--- /dev/null
+++ b/watch-library/hal/include/hpl_usart.h
@@ -0,0 +1,113 @@
+/**
+ * \file
+ *
+ * \brief USART related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_USART_H_INCLUDED
+#define _HPL_USART_H_INCLUDED
+
+/**
+ * \addtogroup HPL USART SYNC
+ *
+ * \section hpl_usart_sync_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <compiler.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief USART flow control state
+ */
+union usart_flow_control_state {
+	struct {
+		uint8_t cts : 1;
+		uint8_t rts : 1;
+		uint8_t unavailable : 1;
+		uint8_t reserved : 5;
+	} bit;
+	uint8_t value;
+};
+
+/**
+ * \brief USART baud rate mode
+ */
+enum usart_baud_rate_mode { USART_BAUDRATE_ASYNCH_ARITHMETIC, USART_BAUDRATE_ASYNCH_FRACTIONAL, USART_BAUDRATE_SYNCH };
+
+/**
+ * \brief USART data order
+ */
+enum usart_data_order { USART_DATA_ORDER_MSB = 0, USART_DATA_ORDER_LSB = 1 };
+
+/**
+ * \brief USART mode
+ */
+enum usart_mode { USART_MODE_ASYNCHRONOUS = 0, USART_MODE_SYNCHRONOUS = 1 };
+
+/**
+ * \brief USART parity
+ */
+enum usart_parity {
+	USART_PARITY_EVEN  = 0,
+	USART_PARITY_ODD   = 1,
+	USART_PARITY_NONE  = 2,
+	USART_PARITY_SPACE = 3,
+	USART_PARITY_MARK  = 4
+};
+
+/**
+ * \brief USART stop bits mode
+ */
+enum usart_stop_bits { USART_STOP_BITS_ONE = 0, USART_STOP_BITS_TWO = 1, USART_STOP_BITS_ONE_P_FIVE = 2 };
+
+/**
+ * \brief USART character size
+ */
+enum usart_character_size {
+	USART_CHARACTER_SIZE_8BITS = 0,
+	USART_CHARACTER_SIZE_9BITS = 1,
+	USART_CHARACTER_SIZE_5BITS = 5,
+	USART_CHARACTER_SIZE_6BITS = 6,
+	USART_CHARACTER_SIZE_7BITS = 7
+};
+
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_USART_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_usart_async.h b/watch-library/hal/include/hpl_usart_async.h
new file mode 100644
index 00000000..3f833d1a
--- /dev/null
+++ b/watch-library/hal/include/hpl_usart_async.h
@@ -0,0 +1,270 @@
+/**
+ * \file
+ *
+ * \brief USART related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_USART_ASYNC_H_INCLUDED
+#define _HPL_USART_ASYNC_H_INCLUDED
+
+/**
+ * \addtogroup HPL USART
+ *
+ * \section hpl_usart_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include "hpl_usart.h"
+#include "hpl_irq.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief USART callback types
+ */
+enum _usart_async_callback_type { USART_ASYNC_BYTE_SENT, USART_ASYNC_RX_DONE, USART_ASYNC_TX_DONE, USART_ASYNC_ERROR };
+
+/**
+ * \brief USART device structure
+ *
+ * The USART device structure forward declaration.
+ */
+struct _usart_async_device;
+
+/**
+ * \brief USART interrupt callbacks
+ */
+struct _usart_async_callbacks {
+	void (*tx_byte_sent)(struct _usart_async_device *device);
+	void (*rx_done_cb)(struct _usart_async_device *device, uint8_t data);
+	void (*tx_done_cb)(struct _usart_async_device *device);
+	void (*error_cb)(struct _usart_async_device *device);
+};
+
+/**
+ * \brief USART descriptor device structure
+ */
+struct _usart_async_device {
+	struct _usart_async_callbacks usart_cb;
+	struct _irq_descriptor        irq;
+	void *                        hw;
+};
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize asynchronous USART
+ *
+ * This function does low level USART configuration.
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status
+ */
+int32_t _usart_async_init(struct _usart_async_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize USART
+ *
+ * This function closes the given USART by disabling its clock.
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_async_deinit(struct _usart_async_device *const device);
+
+/**
+ * \brief Enable usart module
+ *
+ * This function will enable the usart module
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_async_enable(struct _usart_async_device *const device);
+
+/**
+ * \brief Disable usart module
+ *
+ * This function will disable the usart module
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_async_disable(struct _usart_async_device *const device);
+
+/**
+ * \brief Calculate baud rate register value
+ *
+ * \param[in] baud Required baud rate
+ * \param[in] clock_rate clock frequency
+ * \param[in] samples The number of samples
+ * \param[in] mode USART mode
+ * \param[in] fraction A fraction value
+ *
+ * \return Calculated baud rate register value
+ */
+uint16_t _usart_async_calculate_baud_rate(const uint32_t baud, const uint32_t clock_rate, const uint8_t samples,
+                                          const enum usart_baud_rate_mode mode, const uint8_t fraction);
+
+/**
+ * \brief Set baud rate
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] baud_rate A baud rate to set
+ */
+void _usart_async_set_baud_rate(struct _usart_async_device *const device, const uint32_t baud_rate);
+
+/**
+ * \brief Set data order
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] order A data order to set
+ */
+void _usart_async_set_data_order(struct _usart_async_device *const device, const enum usart_data_order order);
+
+/**
+ * \brief Set mode
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] mode A mode to set
+ */
+void _usart_async_set_mode(struct _usart_async_device *const device, const enum usart_mode mode);
+
+/**
+ * \brief Set parity
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] parity A parity to set
+ */
+void _usart_async_set_parity(struct _usart_async_device *const device, const enum usart_parity parity);
+
+/**
+ * \brief Set stop bits mode
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] stop_bits A stop bits mode to set
+ */
+void _usart_async_set_stop_bits(struct _usart_async_device *const device, const enum usart_stop_bits stop_bits);
+
+/**
+ * \brief Set character size
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] size A character size to set
+ */
+void _usart_async_set_character_size(struct _usart_async_device *const device, const enum usart_character_size size);
+
+/**
+ * \brief Retrieve usart status
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+uint32_t _usart_async_get_status(const struct _usart_async_device *const device);
+
+/**
+ * \brief Write a byte to the given USART instance
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] data Data to write
+ */
+void _usart_async_write_byte(struct _usart_async_device *const device, uint8_t data);
+
+/**
+ * \brief Check if USART is ready to send next byte
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return Status of the ready check.
+ * \retval true if the USART is ready to send next byte
+ * \retval false if the USART is not ready to send next byte
+ */
+bool _usart_async_is_byte_sent(const struct _usart_async_device *const device);
+
+/**
+ * \brief Set the state of flow control pins
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] state - A state of flow control pins to set
+ */
+void _usart_async_set_flow_control_state(struct _usart_async_device *const    device,
+                                         const union usart_flow_control_state state);
+
+/**
+ * \brief Retrieve the state of flow control pins
+ *
+ * This function retrieves the of flow control pins.
+ *
+ * \return USART_FLOW_CONTROL_STATE_UNAVAILABLE.
+ */
+union usart_flow_control_state _usart_async_get_flow_control_state(const struct _usart_async_device *const device);
+
+/**
+ * \brief Enable data register empty interrupt
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_async_enable_byte_sent_irq(struct _usart_async_device *const device);
+
+/**
+ * \brief Enable transmission complete interrupt
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_async_enable_tx_done_irq(struct _usart_async_device *const device);
+
+/**
+ * \brief Retrieve ordinal number of the given USART hardware instance
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return The ordinal number of the given USART hardware instance
+ */
+uint8_t _usart_async_get_hardware_index(const struct _usart_async_device *const device);
+
+/**
+ * \brief Enable/disable USART interrupt
+ *
+ * param[in] device The pointer to USART device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] state Enable or disable
+ */
+void _usart_async_set_irq_state(struct _usart_async_device *const device, const enum _usart_async_callback_type type,
+                                const bool state);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_USART_ASYNC_H_INCLUDED */
diff --git a/watch-library/hal/include/hpl_usart_sync.h b/watch-library/hal/include/hpl_usart_sync.h
new file mode 100644
index 00000000..abc7264f
--- /dev/null
+++ b/watch-library/hal/include/hpl_usart_sync.h
@@ -0,0 +1,254 @@
+/**
+ * \file
+ *
+ * \brief USART related functionality declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _HPL_SYNC_USART_H_INCLUDED
+#define _HPL_SYNC_USART_H_INCLUDED
+
+/**
+ * \addtogroup HPL USART SYNC
+ *
+ * \section hpl_usart_sync_rev Revision History
+ * - v1.0.0 Initial Release
+ *
+ *@{
+ */
+
+#include <hpl_usart.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief USART descriptor device structure
+ */
+struct _usart_sync_device {
+	void *hw;
+};
+
+/**
+ * \name HPL functions
+ */
+//@{
+/**
+ * \brief Initialize synchronous USART
+ *
+ * This function does low level USART configuration.
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status
+ */
+int32_t _usart_sync_init(struct _usart_sync_device *const device, void *const hw);
+
+/**
+ * \brief Deinitialize USART
+ *
+ * This function closes the given USART by disabling its clock.
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_sync_deinit(struct _usart_sync_device *const device);
+
+/**
+ * \brief Enable usart module
+ *
+ * This function will enable the usart module
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_sync_enable(struct _usart_sync_device *const device);
+
+/**
+ * \brief Disable usart module
+ *
+ * This function will disable the usart module
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+void _usart_sync_disable(struct _usart_sync_device *const device);
+
+/**
+ * \brief Calculate baud rate register value
+ *
+ * \param[in] baud Required baud rate
+ * \param[in] clock_rate clock frequency
+ * \param[in] samples The number of samples
+ * \param[in] mode USART mode
+ * \param[in] fraction A fraction value
+ *
+ * \return Calculated baud rate register value
+ */
+uint16_t _usart_sync_calculate_baud_rate(const uint32_t baud, const uint32_t clock_rate, const uint8_t samples,
+                                         const enum usart_baud_rate_mode mode, const uint8_t fraction);
+
+/**
+ * \brief Set baud rate
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] baud_rate A baud rate to set
+ */
+void _usart_sync_set_baud_rate(struct _usart_sync_device *const device, const uint32_t baud_rate);
+
+/**
+ * \brief Set data order
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] order A data order to set
+ */
+void _usart_sync_set_data_order(struct _usart_sync_device *const device, const enum usart_data_order order);
+
+/**
+ * \brief Set mode
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] mode A mode to set
+ */
+void _usart_sync_set_mode(struct _usart_sync_device *const device, const enum usart_mode mode);
+
+/**
+ * \brief Set parity
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] parity A parity to set
+ */
+void _usart_sync_set_parity(struct _usart_sync_device *const device, const enum usart_parity parity);
+
+/**
+ * \brief Set stop bits mode
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] stop_bits A stop bits mode to set
+ */
+void _usart_sync_set_stop_bits(struct _usart_sync_device *const device, const enum usart_stop_bits stop_bits);
+
+/**
+ * \brief Set character size
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] size A character size to set
+ */
+void _usart_sync_set_character_size(struct _usart_sync_device *const device, const enum usart_character_size size);
+
+/**
+ * \brief Retrieve usart status
+ *
+ * \param[in] device The pointer to USART device instance
+ */
+uint32_t _usart_sync_get_status(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Write a byte to the given USART instance
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] data Data to write
+ */
+void _usart_sync_write_byte(struct _usart_sync_device *const device, uint8_t data);
+
+/**
+ * \brief Read a byte from the given USART instance
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] data Data to write
+ *
+ * \return Data received via USART interface.
+ */
+uint8_t _usart_sync_read_byte(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Check if USART is ready to send next byte
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return Status of the ready check.
+ * \retval true if the USART is ready to send next byte
+ * \retval false if the USART is not ready to send next byte
+ */
+bool _usart_sync_is_ready_to_send(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Check if USART transmitter has sent the byte
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return Status of the ready check.
+ * \retval true if the USART transmitter has sent the byte
+ * \retval false if the USART transmitter has not send the byte
+ */
+bool _usart_sync_is_transmit_done(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Check if there is data received by USART
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return Status of the data received check.
+ * \retval true if the USART has received a byte
+ * \retval false if the USART has not received a byte
+ */
+bool _usart_sync_is_byte_received(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Set the state of flow control pins
+ *
+ * \param[in] device The pointer to USART device instance
+ * \param[in] state - A state of flow control pins to set
+ */
+void _usart_sync_set_flow_control_state(struct _usart_sync_device *const     device,
+                                        const union usart_flow_control_state state);
+
+/**
+ * \brief Retrieve the state of flow control pins
+ *
+ * This function retrieves the of flow control pins.
+ *
+ * \return USART_FLOW_CONTROL_STATE_UNAVAILABLE.
+ */
+union usart_flow_control_state _usart_sync_get_flow_control_state(const struct _usart_sync_device *const device);
+
+/**
+ * \brief Retrieve ordinal number of the given USART hardware instance
+ *
+ * \param[in] device The pointer to USART device instance
+ *
+ * \return The ordinal number of the given USART hardware instance
+ */
+uint8_t _usart_sync_get_hardware_index(const struct _usart_sync_device *const device);
+//@}
+
+#ifdef __cplusplus
+}
+#endif
+/**@}*/
+#endif /* _HPL_SYNC_USART_H_INCLUDED */