RIOT/cpu/sam3/include/system_sam3xa.h

/*! \file *********************************************************************
 *
 * \brief CMSIS Cortex-M# Device Peripheral Access Layer Header File
 *           for SAM3 devices.
 *
 * Copyright (c) 2012, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following condition is met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: 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
 * 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.
 *
 * \par Purpose
 *
 * This file provides basic support for Cortex-M processor based
 * microcontrollers.
 *
 * \author               Atmel Corporation: http://www.atmel.com \n
 *                       Support and FAQ: http://support.atmel.no/
 *
 ******************************************************************************/

#ifndef SYSTEM_SAM3X_H_INCLUDED
#define SYSTEM_SAM3X_H_INCLUDED

/* @cond @false */
/**INDENT-OFF**/
/**INDENT-ON**/
/* @endcond */

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

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

/**
 * @brief Setup the microcontroller system.
 * Initialize the System and update the SystemCoreClock variable.
 */
void SystemInit(void);

/**
 * @brief Updates the SystemCoreClock with current core Clock
 * retrieved from cpu registers.
 */
void SystemCoreClockUpdate(void);

/**
 * Initialize flash.
 */
void system_init_flash(uint32_t dw_clk);

/* @cond @false */
/**INDENT-OFF**/
#ifdef __cplusplus
}
#endif
/**INDENT-ON**/
/* @endcond */

#endif /* SYSTEM_SAM3X_H_INCLUDED */