/**
 * \file
 *
 * \brief Low-level initialization functions called upon chip startup
 *
 * 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.
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 * to your use of third party software (including open source software) that
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 *
 * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
 * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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/*
 * Support and FAQ: visit <a href="https://www.microchip.com/support/">Microchip Support</a>
 */

#ifndef _SYSTEM_SAMD21_H_INCLUDED_
#define _SYSTEM_SAMD21_H_INCLUDED_

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>

extern uint32_t SystemCoreClock;   /*!< System Clock Frequency (Core Clock)  */

void SystemInit(void);
void SystemCoreClockUpdate(void);

#ifdef __cplusplus
}
#endif

#endif /* SYSTEM_SAMD21_H_INCLUDED */