169 lines
7.1 KiB
C
169 lines
7.1 KiB
C
/*
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** ###################################################################
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** Processors: MK22FN512CAP12
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** MK22FN512VDC12
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** MK22FN512VFX12
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** MK22FN512VLH12
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** MK22FN512VLL12
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** MK22FN512VMP12
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**
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** Compilers: Keil ARM C/C++ Compiler
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** Freescale C/C++ for Embedded ARM
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** GNU C Compiler
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** IAR ANSI C/C++ Compiler for ARM
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**
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** Reference manual: K22P121M120SF7RM, Rev. 1, March 24, 2014
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** Version: rev. 2.9, 2016-03-21
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** Build: b160321
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**
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** Abstract:
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** Provides a system configuration function and a global variable that
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** contains the system frequency. It configures the device and initializes
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** the oscillator (PLL) that is part of the microcontroller device.
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**
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** Copyright (c) 2016 Freescale Semiconductor, Inc.
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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,
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** are permitted provided that the following conditions are met:
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**
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** o Redistributions of source code must retain the above copyright notice, this list
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** of conditions and the following disclaimer.
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**
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** o Redistributions in binary form must reproduce the above copyright notice, this
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** list of conditions and the following disclaimer in the documentation and/or
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** other materials provided with the distribution.
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**
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** o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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** contributors may be used to endorse or promote products derived from this
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** 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
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** 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
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** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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** ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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** http: www.freescale.com
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** mail: support@freescale.com
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**
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** Revisions:
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** - rev. 1.0 (2013-07-23)
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** Initial version.
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** - rev. 1.1 (2013-09-17)
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** RM rev. 0.4 update.
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** - rev. 2.0 (2013-10-29)
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** Register accessor macros added to the memory map.
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** Symbols for Processor Expert memory map compatibility added to the memory map.
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** Startup file for gcc has been updated according to CMSIS 3.2.
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** System initialization updated.
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** - rev. 2.1 (2013-10-30)
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** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
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** - rev. 2.2 (2013-12-20)
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** Update according to reference manual rev. 0.6,
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** - rev. 2.3 (2014-01-13)
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** Update according to reference manual rev. 0.61,
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** - rev. 2.4 (2014-02-10)
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** The declaration of clock configurations has been moved to separate header file system_MK22F51212.h
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** - rev. 2.5 (2014-05-06)
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** Update according to reference manual rev. 1.0,
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** Update of system and startup files.
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** Module access macro module_BASES replaced by module_BASE_PTRS.
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** - rev. 2.6 (2014-08-28)
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** Update of system files - default clock configuration changed.
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** Update of startup files - possibility to override DefaultISR added.
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** - rev. 2.7 (2014-10-14)
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** Interrupt INT_LPTimer renamed to INT_LPTMR0, interrupt INT_Watchdog renamed to INT_WDOG_EWM.
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** - rev. 2.8 (2015-02-19)
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** Renamed interrupt vector LLW to LLWU.
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** - rev. 2.9 (2016-03-21)
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** Added MK22FN512VFX12 part.
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** GPIO - renamed port instances: PTx -> GPIOx.
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**
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** ###################################################################
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*/
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/*!
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* @file MK22F51212
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* @version 2.9
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* @date 2016-03-21
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* @brief Device specific configuration file for MK22F51212 (header file)
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*
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* Provides a system configuration function and a global variable that contains
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* the system frequency. It configures the device and initializes the oscillator
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* (PLL) that is part of the microcontroller device.
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*/
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#ifndef _SYSTEM_MK22F51212_H_
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#define _SYSTEM_MK22F51212_H_ /**< Symbol preventing repeated inclusion */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#ifndef DISABLE_WDOG
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#define DISABLE_WDOG 1
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#endif
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/* Define clock source values */
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#define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */
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#define CPU_XTAL32k_CLK_HZ 32768u /* Value of the external 32k crystal or oscillator clock frequency in Hz */
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#define CPU_INT_SLOW_CLK_HZ 32768u /* Value of the slow internal oscillator clock frequency in Hz */
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#define CPU_INT_FAST_CLK_HZ 4000000u /* Value of the fast internal oscillator clock frequency in Hz */
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#define CPU_INT_IRC_CLK_HZ 48000000u /* Value of the 48M internal oscillator clock frequency in Hz */
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/* RTC oscillator setting */
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/* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */
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#define SYSTEM_RTC_CR_VALUE 0x0300U /* RTC_CR */
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/* Low power mode enable */
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/* SMC_PMPROT: AHSRUN=1,AVLP=1,ALLS=1,AVLLS=1 */
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#define SYSTEM_SMC_PMPROT_VALUE 0xAAU /* SMC_PMPROT */
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#define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */
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/**
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* @brief System clock frequency (core clock)
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*
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* The system clock frequency supplied to the SysTick timer and the processor
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* core clock. This variable can be used by the user application to setup the
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* SysTick timer or configure other parameters. It may also be used by debugger to
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* query the frequency of the debug timer or configure the trace clock speed
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* SystemCoreClock is initialized with a correct predefined value.
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*/
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extern uint32_t SystemCoreClock;
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/**
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* @brief Setup the microcontroller system.
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*
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* Typically this function configures the oscillator (PLL) that is part of the
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* microcontroller device. For systems with variable clock speed it also updates
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* the variable SystemCoreClock. SystemInit is called from startup_device file.
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*/
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void SystemInit (void);
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/**
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* @brief Updates the SystemCoreClock variable.
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*
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* It must be called whenever the core clock is changed during program
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* execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
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* the current core clock.
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*/
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void SystemCoreClockUpdate (void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYSTEM_MK22F51212_H_ */
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