/*
** ###################################################################
**     Compilers:           ARM Compiler
**                          Freescale C/C++ for Embedded ARM
**                          GNU C Compiler
**                          GNU C Compiler - CodeSourcery Sourcery G++
**                          IAR ANSI C/C++ Compiler for ARM
**
**     Reference manual:    K24P121M120SF5RM, Rev.1, March 2014
**     Version:             rev. 0.1, 2014-04-07
**
**     Abstract:
**         Provides a system configuration function and a global variable that
**         contains the system frequency. It configures the device and initializes
**         the oscillator (PLL) that is part of the microcontroller device.
**
**     Copyright: 2014 Freescale, Inc.
**     All rights reserved.
**
**     Redistribution and use in source and binary forms, with or without modification,
**     are permitted provided that the following conditions are met:
**
**     o Redistributions of source code must retain the above copyright notice, this list
**       of conditions and the following disclaimer.
**
**     o Redistributions in binary form must reproduce the above copyright notice, this
**       list of conditions and the following disclaimer in the documentation and/or
**       other materials provided with the distribution.
**
**     o Neither the name of Freescale Semiconductor, Inc. nor the names of its
**       contributors may be used to endorse or promote products derived from this
**       software without specific prior written permission.
**
**     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
**     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
**     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
**     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
**     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
**     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
**     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
**     ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
**     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
**     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
**     http:                 www.freescale.com
**     mail:                 support@freescale.com
**
**     Revisions:
**     - rev. 0.1 (2014-04-07)
**         Initial version
**
** ###################################################################
*/

/*!
 * @file MK24F25612
 * @version 0.1
 * @date 2014-04-07
 * @brief Device specific configuration file for MK24F25612 (header file)
 *
 * Provides a system configuration function and a global variable that contains
 * the system frequency. It configures the device and initializes the oscillator
 * (PLL) that is part of the microcontroller device.
 */

#ifndef _SYSTEM_MK24F25612_H_
#define _SYSTEM_MK24F25612_H_ /**< Symbol preventing repeated inclusion */

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>

#define DISABLE_WDOG 1

#ifndef CLOCK_SETUP
#define CLOCK_SETUP 0
#endif
/* Predefined clock setups
   0 ... Default  part configuration
         Multipurpose Clock Generator (MCG) in FEI mode.
         Reference clock source for MCG module: Slow internal reference clock
         Core clock = 20.97152MHz
         Bus clock  = 20.97152MHz
   1 ... Maximum achievable clock frequency configuration
         Multipurpose Clock Generator (MCG) in PEE mode.
         Reference clock source for MCG module: System oscillator 0 reference clock
         Core clock = 120MHz
         Bus clock  = 60MHz
   2 ... Chip internaly clocked, ready for Very Low Power Run mode.
         Multipurpose Clock Generator (MCG) in BLPI mode.
         Reference clock source for MCG module: Fast internal reference clock
         Core clock = 4MHz
         Bus clock  = 4MHz
   3 ... Chip externally clocked, ready for Very Low Power Run mode.
         Multipurpose Clock Generator (MCG) in BLPE mode.
         Reference clock source for MCG module: RTC oscillator reference clock
         Core clock = 0.032768MHz
         Bus clock  = 0.032768MHz
   4 ... USB clock setup
         Multipurpose Clock Generator (MCG) in PEE mode.
         Reference clock source for MCG module: System oscillator 0 reference clock
         Core clock = 120MHz
         Bus clock  = 60MHz
*/

/* Define clock source values */

#define CPU_XTAL_CLK_HZ 50000000u    /* Value of the external crystal or oscillator clock frequency in Hz */
#define CPU_XTAL32k_CLK_HZ 32768u    /* Value of the external 32k crystal or oscillator clock frequency in Hz */
#define CPU_INT_SLOW_CLK_HZ 32768u   /* Value of the slow internal oscillator clock frequency in Hz  */
#define CPU_INT_FAST_CLK_HZ 4000000u /* Value of the fast internal oscillator clock frequency in Hz  */
#define CPU_INT_IRC_CLK_HZ 48000000u /* Value of the 48M internal oscillator clock frequency in Hz  */

#if (CLOCK_SETUP == 0)
#define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */
#elif(CLOCK_SETUP == 1)
#define DEFAULT_SYSTEM_CLOCK 120000000u /* Default System clock value */
#elif(CLOCK_SETUP == 2)
#define DEFAULT_SYSTEM_CLOCK 4000000u /* Default System clock value */
#elif(CLOCK_SETUP == 3)
#define DEFAULT_SYSTEM_CLOCK 32768u /* Default System clock value */
#elif(CLOCK_SETUP == 4)
#define DEFAULT_SYSTEM_CLOCK 120000000u /* Default System clock value */
#endif

/**
 * @brief System clock frequency (core clock)
 *
 * The system clock frequency supplied to the SysTick timer and the processor
 * core clock. This variable can be used by the user application to setup the
 * SysTick timer or configure other parameters. It may also be used by debugger to
 * query the frequency of the debug timer or configure the trace clock speed
 * SystemCoreClock is initialized with a correct predefined value.
 */
extern uint32_t SystemCoreClock;

/**
 * @brief Setup the microcontroller system.
 *
 * Typically this function configures the oscillator (PLL) that is part of the
 * microcontroller device. For systems with variable clock speed it also updates
 * the variable SystemCoreClock. SystemInit is called from startup_device file.
 */
void SystemInit(void);

/**
 * @brief Updates the SystemCoreClock variable.
 *
 * It must be called whenever the core clock is changed during program
 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
 * the current core clock.
 */
void SystemCoreClockUpdate(void);

#ifdef __cplusplus
}
#endif

#endif /* #if !defined(_SYSTEM_MK24F25612_H_) */
