www.pudn.com > KEA_Driver_Lib_V1.zip > system_SKEAZ1284.h, change:2014-07-09,size:2747b


/* 
** ################################################################### 
**     Compilers:           ARM Compiler 
**                          Freescale C/C++ for Embedded ARM 
**                          GNU C Compiler 
**                          IAR ANSI C/C++ Compiler for ARM 
** 
**     Reference manual:    MKE06Z128M48SF0RM, Rev.1, May-23 2013 
**     Version:             rev. 1.0, 2013-05-09 
** 
**     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 (2013-05-09) 
**         Initial version. 
** 
** ################################################################### 
*/ 
 
/*! 
 * @file MKE06Z4 
 * @version 1.0 
 * @date 2013-05-09 
 * @brief Device specific configuration file for MKE06Z4 (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_SKEAZ1284_H_ 
#define SYSTEM_SKEAZ1284_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_MKE06Z4_H_) */