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/**
* \file
*
* \brief SAM System related functionality
*
* Copyright (C) 2012-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#include <system.h>
/**
* \internal
* Dummy initialization function, used as a weak alias target for the various
* init functions called by \ref system_init().
*/
void _system_dummy_init(void);
void _system_dummy_init(void)
{
return;
}
#if !defined(__DOXYGEN__)
# if defined(__GNUC__) || defined(__CC_ARM)
void system_clock_init(void) WEAK __attribute__((alias("_system_dummy_init")));
void system_board_init(void) WEAK __attribute__((alias("_system_dummy_init")));
void _system_events_init(void) WEAK __attribute__((alias("_system_dummy_init")));
void _system_extint_init(void) WEAK __attribute__((alias("_system_dummy_init")));
void _system_divas_init(void) WEAK __attribute__((alias("_system_dummy_init")));
# elif defined(__ICCARM__)
void system_clock_init(void);
void system_board_init(void);
void _system_events_init(void);
void _system_extint_init(void);
void _system_divas_init(void);
# pragma weak system_clock_init=_system_dummy_init
# pragma weak system_board_init=_system_dummy_init
# pragma weak _system_events_init=_system_dummy_init
# pragma weak _system_extint_init=_system_dummy_init
# pragma weak _system_divas_init=_system_dummy_init
# endif
#endif
/**
* \brief Initialize system
*
* This function will call the various initialization functions within the
* system namespace. If a given optional system module is not available, the
* associated call will effectively be a NOP (No Operation).
*
* Currently the following initialization functions are supported:
* - System clock initialization (via the SYSTEM CLOCK sub-module)
* - Board hardware initialization (via the Board module)
* - Event system driver initialization (via the EVSYS module)
* - External Interrupt driver initialization (via the EXTINT module)
*/
void system_init(void)
{
/* Configure GCLK and clock sources according to conf_clocks.h */
system_clock_init();
/* Initialize board hardware */
system_board_init();
/* Initialize EVSYS hardware */
_system_events_init();
/* Initialize External hardware */
_system_extint_init();
/* Initialize DIVAS hardware */
_system_divas_init();
}
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