67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/**************************************************************************//**
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* @file system_ARMCM3.c
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* @brief CMSIS Device System Source File for
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* ARMCM3 Device Series
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* @version V1.07
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* @date 30. January 2012
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*
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* @note
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* Copyright (C) 2012 ARM Limited. All rights reserved.
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*
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* @par
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* ARM Limited (ARM) is supplying this software for use with Cortex-M
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* processor based microcontrollers. This file can be freely distributed
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* within development tools that are supporting such ARM based processors.
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*
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* @par
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* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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*
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******************************************************************************/
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#include "ARMCM3.h"
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/*----------------------------------------------------------------------------
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Define clocks
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*----------------------------------------------------------------------------*/
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#define __HSI ( 8000000UL)
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#define __XTAL ( 5000000UL) /* Oscillator frequency */
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#define __SYSTEM_CLOCK (5*__XTAL)
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/*----------------------------------------------------------------------------
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Clock Variable definitions
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*----------------------------------------------------------------------------*/
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uint32_t SystemCoreClock = __SYSTEM_CLOCK;/*!< System Clock Frequency (Core Clock)*/
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/*----------------------------------------------------------------------------
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Clock functions
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*----------------------------------------------------------------------------*/
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void SystemCoreClockUpdate (void) /* Get Core Clock Frequency */
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{
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SystemCoreClock = __SYSTEM_CLOCK;
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}
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/**
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* Initialize the system
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*
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* @param none
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* @return none
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*
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* @brief Setup the microcontroller system.
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* Initialize the System.
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*/
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void SystemInit (void)
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{
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SystemCoreClock = __SYSTEM_CLOCK;
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}
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