rt-thread/bsp/frdm-k64f/device/system_MK64F12.h

/*
** ###################################################################
**     Processors:          MK64FN1M0CAJ12
**                          MK64FN1M0VDC12
**                          MK64FN1M0VLL12
**                          MK64FN1M0VLQ12
**                          MK64FN1M0VMD12
**                          MK64FX512VDC12
**                          MK64FX512VLL12
**                          MK64FX512VLQ12
**                          MK64FX512VMD12
**
**     Compilers:           Keil ARM C/C++ Compiler
**                          Freescale C/C++ for Embedded ARM
**                          GNU C Compiler
**                          IAR ANSI C/C++ Compiler for ARM
**                          MCUXpresso Compiler
**
**     Reference manual:    K64P144M120SF5RM, Rev.2, January 2014
**     Version:             rev. 2.9, 2016-03-21
**     Build:               b170112
**
**     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.
**     Copyright 2016 - 2017 NXP
**     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 the copyright holder 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.nxp.com
**     mail:                 support@nxp.com
**
**     Revisions:
**     - rev. 1.0 (2013-08-12)
**         Initial version.
**     - rev. 2.0 (2013-10-29)
**         Register accessor macros added to the memory map.
**         Symbols for Processor Expert memory map compatibility added to the memory map.
**         Startup file for gcc has been updated according to CMSIS 3.2.
**         System initialization updated.
**         MCG - registers updated.
**         PORTA, PORTB, PORTC, PORTE - registers for digital filter removed.
**     - rev. 2.1 (2013-10-30)
**         Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
**     - rev. 2.2 (2013-12-09)
**         DMA - EARS register removed.
**         AIPS0, AIPS1 - MPRA register updated.
**     - rev. 2.3 (2014-01-24)
**         Update according to reference manual rev. 2
**         ENET, MCG, MCM, SIM, USB - registers updated
**     - rev. 2.4 (2014-02-10)
**         The declaration of clock configurations has been moved to separate header file system_MK64F12.h
**         Update of SystemInit() and SystemCoreClockUpdate() functions.
**     - rev. 2.5 (2014-02-10)
**         The declaration of clock configurations has been moved to separate header file system_MK64F12.h
**         Update of SystemInit() and SystemCoreClockUpdate() functions.
**         Module access macro module_BASES replaced by module_BASE_PTRS.
**     - rev. 2.6 (2014-08-28)
**         Update of system files - default clock configuration changed.
**         Update of startup files - possibility to override DefaultISR added.
**     - rev. 2.7 (2014-10-14)
**         Interrupt INT_LPTimer renamed to INT_LPTMR0, interrupt INT_Watchdog renamed to INT_WDOG_EWM.
**     - rev. 2.8 (2015-02-19)
**         Renamed interrupt vector LLW to LLWU.
**     - rev. 2.9 (2016-03-21)
**         Added MK64FN1M0CAJ12 part.
**         GPIO - renamed port instances: PTx -> GPIOx.
**
** ###################################################################
*/

/*!
 * @file MK64F12
 * @version 2.9
 * @date 2016-03-21
 * @brief Device specific configuration file for MK64F12 (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_MK64F12_H_
#define _SYSTEM_MK64F12_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                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  */

/* RTC oscillator setting */
/* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */
#define SYSTEM_RTC_CR_VALUE            0x0300U             /* RTC_CR */

/* Low power mode enable */
/* SMC_PMPROT: AVLP=1,ALLS=1,AVLLS=1 */
#define SYSTEM_SMC_PMPROT_VALUE        0x2AU               /* SMC_PMPROT */

#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_MK64F12_H_ */