1 /* ---------------------------------------------------------------------------- */
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2 /* Atmel Microcontroller Software Support */
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3 /* SAM Software Package License */
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4 /* ---------------------------------------------------------------------------- */
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5 /* Copyright (c) 2014, Atmel Corporation */
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7 /* All rights reserved. */
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9 /* Redistribution and use in source and binary forms, with or without */
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10 /* modification, are permitted provided that the following condition is met: */
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12 /* - Redistributions of source code must retain the above copyright notice, */
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13 /* this list of conditions and the disclaimer below. */
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15 /* Atmel's name may not be used to endorse or promote products derived from */
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16 /* this software without specific prior written permission. */
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18 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */
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19 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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20 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */
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21 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */
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22 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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23 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
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24 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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25 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
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26 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
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27 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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28 /* ---------------------------------------------------------------------------- */
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30 #ifndef SYSTEM_SAM_H_INCLUDED
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31 #define SYSTEM_SAM_H_INCLUDED
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43 extern uint32_t SystemCoreClock; /* System Clock Frequency (Core Clock) */
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46 * @brief Setup the microcontroller system.
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47 * Initialize the System and update the SystemCoreClock variable.
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49 void SystemInit(void);
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52 * @brief Updates the SystemCoreClock with current core Clock
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53 * retrieved from cpu registers.
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55 void SystemCoreClockUpdate(void);
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60 void system_init_flash(uint32_t dw_clk);
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70 #endif /* SYSTEM_SAM_H_INCLUDED */
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