text: /*
  ** ###################################################################
  **     Processors:          MKW41Z256VHT4
  **                          MKW41Z512VHT4
  **
  **     Compilers:           Keil ARM C/C++ Compiler
  **                          GNU C Compiler
  **                          GNU C Compiler - CodeSourcery Sourcery G++
  **                          IAR ANSI C/C++ Compiler for ARM
  **
  **     Reference manual:    MKW41Z512RM Rev. 0.0, 01/2016
  **     Version:             rev. 1.0, 2015-09-23
  **     Build:               b160222
  **
  **     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 (c) 2016 Freescale Semiconductor, 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. 1.0 (2015-09-23)
  **         Initial version.
  **
  ** ###################################################################
  */
  
  /*!
   * @file MKW41Z4
   * @version 1.0
   * @date 2015-09-23
   * @brief Device specific configuration file for MKW41Z4 (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_MKW41Z4_H_
  #define _SYSTEM_MKW41Z4_H_                       /**< Symbol preventing repeated inclusion */
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <stdint.h>
  
  
  #ifndef DISABLE_WDOG
    #define DISABLE_WDOG                 1
  #endif
  
  /* Define clock source values */
  
  #define CPU_XTAL_CLK_HZ                32000000u           /* 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  */
  
  /* RF oscillator setting */
  #define SYSTEM_RSIM_CONTROL_VALUE      0xC00100U           /* Enable RF oscillator in Run/Wait mode */
  
  /* Low power mode enable */
  
  /* SMC_PMPROT: ??=0,??=0,AVLP=1,??=0,??=0,??=0,AVLLS=1,??=0 */
  #define SYSTEM_SMC_PMPROT_VALUE        (SMC_PMPROT_AVLP_MASK | SMC_PMPROT_ALLS_MASK | SMC_PMPROT_AVLLS_MASK) /* Mask of allowed low power modes used to initialize power modes protection register */
  
  #define DEFAULT_SYSTEM_CLOCK           20971520U           /* Default System clock value */
  
  
  /**
   * @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  /* _SYSTEM_MKW41Z4_H_ */
  