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diff --git a/watch-library/hpl/tcc/hpl_tcc.h b/watch-library/hpl/tcc/hpl_tcc.h
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+/**
+ * \file
+ *
+ * \brief SAM Timer/Counter for Control Applications
+ *
+ * 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_TCC_V101_BASE_H_INCLUDED
+#define _HPL_TCC_V101_BASE_H_INCLUDED
+
+#include <hpl_timer.h>
+#include <hpl_pwm.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup tcc_group TCC Low Level Driver Helpers
+ *
+ * \section tcc_helpers_rev Revision History
+ * - v0.0.0.1 Initial Commit
+ *
+ *@{
+ */
+
+/**
+ * \name HPL functions
+ */
+//@{
+
+/**
+ * \brief Retrieve timer helper functions
+ *
+ * \return A pointer to set of timer helper functions
+ */
+struct _timer_hpl_interface *_tcc_get_timer(void);
+/**
+ * \brief Initialize TCC for PWM
+ *
+ * This function does low level TCC configuration.
+ *
+ * \param[in] device The pointer to PWM device instance
+ * \param[in] hw The pointer to hardware instance
+ *
+ * \return Initialization status.
+ */
+int32_t _tcc_pwm_init(struct _pwm_device *const device, void *const hw);
+
+/**
+ * \brief De-initialize TCC for PWM
+ *
+ * \param[in] device The pointer to TCC device instance
+ */
+void _tcc_pwm_deinit(struct _pwm_device *const device);
+
+/**
+ * \brief Retrieve offset of the given tcc hardware instance
+ *
+ * \param[in] device The pointer to TCC device instance
+ *
+ * \return The offset of the given tcc hardware instance
+ */
+uint8_t _tcc_pwm_get_hardware_offset(const struct _pwm_device *const device);
+
+/**
+ * \brief Start PWM
+ *
+ * \param[in] device The pointer to TCC device instance
+ */
+void _tcc_start_pwm(struct _pwm_device *const device);
+
+/**
+ * \brief Stop PWM
+ *
+ * \param[in] device The pointer to TCC device instance
+ */
+void _tcc_stop_pwm(struct _pwm_device *const device);
+
+/**
+ * \brief Check if PWM is running
+ *
+ * \param[in] device The pointer to TCC device instance
+ *
+ * \return Check status.
+ * \retval true The given pwm is running
+ * \retval false The given pwm is not running
+ */
+bool _tcc_is_pwm_enabled(const struct _pwm_device *const device);
+
+/**
+ * \brief Set PWM parameter
+ * \param[in] device The pointer to TCC device instance
+ * \param[in] period Total period of one PWM cycle.
+ * \param[in] duty_cycle Period of PWM first half during one cycle.
+ */
+void _tcc_set_pwm_param(struct _pwm_device *const device, const pwm_period_t period, const pwm_period_t duty_cycle);
+
+/**
+ * \brief Get pwm waveform period value
+ * \param[in] device The pointer to TCC device instance
+ * \return Period value.
+ */
+pwm_period_t _tcc_pwm_get_period(const struct _pwm_device *const device);
+
+/**
+ * \brief Get pwm waveform duty cycle value
+ * \param[in] device The pointer to TCC device instance
+ * \return Duty cycle value
+ */
+uint32_t _tcc_pwm_get_duty(const struct _pwm_device *const device);
+
+/**
+ * \brief Enable/disable PWM interrupt
+ *
+ * param[in] device The pointer to PWM device instance
+ * param[in] type The type of interrupt to disable/enable if applicable
+ * param[in] disable Enable or disable
+ */
+void _tcc_pwm_set_irq_state(struct _pwm_device *const device, const enum _pwm_callback_type type, const bool disable);
+
+/**
+ * \brief Retrieve pwm helper functions
+ *
+ * \return A pointer to set of pwm helper functions
+ */
+struct _pwm_hpl_interface *_tcc_get_pwm(void);
+
+//@}
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _HPL_TCC_V101_BASE_H_INCLUDED */