93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/*
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** ###################################################################
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** Processor: MK64FN1M0VMD12
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** Compilers: ARM Compiler
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** Freescale C/C++ for Embedded ARM
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** GNU C Compiler
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** GNU C Compiler - CodeSourcery Sourcery G++
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** IAR ANSI C/C++ Compiler for ARM
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**
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** Reference manual: K64P144M120SF5RM, Rev.1, July 2013
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** Version: rev. 2.1, 2013-10-29
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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: 2013 Freescale, Inc. All Rights Reserved.
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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 (2013-08-12)
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** Initial version.
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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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** MCG - registers updated.
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** PORTA, PORTB, PORTC, PORTE - registers for digital filter removed.
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** - rev. 2.1 (2013-10-29)
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** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
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**
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** ###################################################################
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*/
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/*!
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* @file MK64F12
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* @version 2.1
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* @date 2013-10-29
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* @brief Device specific configuration file for MK64F12 (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_MK64F12_H_
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#define SYSTEM_MK64F12_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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/**
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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 /* #if !defined(SYSTEM_MK64F12_H_) */
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