108 lines
4.6 KiB
C
108 lines
4.6 KiB
C
/*********************************************************************************************************************
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* @file system_XMC4700.h
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* @brief Device specific initialization for the XMC4700-Series according to CMSIS
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* @version V1.0
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* @date 22 May 2015
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*
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* @cond
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*********************************************************************************************************************
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* Copyright (c) 2015-2016, Infineon Technologies AG
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,are permitted provided that the
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* following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided with the distribution.
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*
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* Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY,OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* To improve the quality of the software, users are encouraged to share modifications, enhancements or bug fixes with
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* Infineon Technologies AG dave@infineon.com).
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*********************************************************************************************************************
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*
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**************************** Change history *********************************
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* V1.0, 22 May 2015, JFT, Initial version
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*****************************************************************************
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* @endcond
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*/
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#ifndef SYSTEM_XMC4700_H
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#define SYSTEM_XMC4700_H
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/*******************************************************************************
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* HEADER FILES
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*******************************************************************************/
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#include <stdint.h>
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/*******************************************************************************
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* MACROS
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*******************************************************************************/
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#define OFI_FREQUENCY (24000000UL) /**< 24MHz Backup Clock (fOFI) frequency. */
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#define OSI_FREQUENCY (32768UL) /**< 32KHz Internal Slow Clock source (fOSI) frequency. */
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/*******************************************************************************
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* GLOBAL VARIABLES
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*******************************************************************************/
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extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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extern uint8_t g_chipid[16];
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/*******************************************************************************
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* API PROTOTYPES
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*******************************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Initialize the system
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*
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*/
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void SystemInit(void);
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/**
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* @brief Initialize CPU settings
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*
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*/
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void SystemCoreSetup(void);
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/**
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* @brief Initialize clock
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*
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*/
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void SystemCoreClockSetup(void);
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/**
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* @brief Update SystemCoreClock variable
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*
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*/
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void SystemCoreClockUpdate(void);
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/**
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* @brief Returns frequency of the high performace oscillator
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* User needs to overload this function to return the correct oscillator frequency
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*/
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uint32_t OSCHP_GetFrequency(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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