www.pudn.com > KEA_Driver_Lib_V1.zip > system_SKEAZN84.h, change:2014-07-09,size:3232b


/* 
** ################################################################### 
**     Compilers:           ARM Compiler 
**                          Freescale C/C++ for Embedded ARM 
**                          GNU C Compiler 
**                          IAR ANSI C/C++ Compiler for ARM 
** 
**     Reference manual:    MKE02Z64M20SF0RM, Rev.2.1, Apr-23 2013 
**     Version:             rev. 1.4, 2013-07-10 
** 
**     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: 2013 Freescale, Inc. All Rights Reserved. 
** 
**     http:                 www.freescale.com 
**     mail:                 support@freescale.com 
** 
**     Revisions: 
**     - rev. 1.0 (2013-02-06) 
**         Initial version. 
**     - rev. 1.1 (2013-04-05) 
**         Changed start of doxygen comment. 
**     - rev. 1.2 (2013-05-07) 
**         Update according to reference manual rev. 2.1. 
**     - rev. 1.3 (2013-06-13) 
**         Device types PTA,PTB,FPTA,FPTB changed to GPIOA,GPIOB,FGPIOA,FGPIOB. 
**     - rev. 1.4 (2013-07-10) 
**         NV - DFPROT register renamed to EEPROT. 
**         WDOG - Peripheral register layout structure has been extended with 16-bit access registers CNT, TOVAL, WIN. 
** 
** ################################################################### 
*/ 
 
/*! 
 * @file MKE02Z2 
 * @version 1.4 
 * @date 2013-07-10 
 * @brief Device specific configuration file for MKE02Z2 (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_SKEAZN84_H_ 
#define SYSTEM_SKEAZN84_H_                        /**< Symbol preventing repeated inclusion */ 
 
#ifdef __cplusplus 
extern "C" { 
#endif 
 
#include <stdint.h> 
 
/** 
 * @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_MKE02Z2_H_) */