system_LPC407x_8x_177x_8x.h

00001 /**********************************************************************
00002 * $Id$      system_LPC407x_8x_177x_8x.h         2011-06-02
00003 *//**
00004 * @file     system_LPC407x_8x_177x_8x.h
00005 * @brief    CMSIS Cortex-M3 Device Peripheral Access Layer Source File
00006 *           for the NXP LPC Device Series
00007 * @version  1.0
00008 * @date     02. June. 2011
00009 * @author   NXP MCU SW Application Team
00010 *
00011 * Copyright(C) 2011, NXP Semiconductor
00012 * All rights reserved.
00013 *
00014 ***********************************************************************
00015 * Software that is described herein is for illustrative purposes only
00016 * which provides customers with programming information regarding the
00017 * products. This software is supplied "AS IS" without any warranties.
00018 * NXP Semiconductors assumes no responsibility or liability for the
00019 * use of the software, conveys no license or title under any patent,
00020 * copyright, or mask work right to the product. NXP Semiconductors
00021 * reserves the right to make changes in the software without
00022 * notification. NXP Semiconductors also make no representation or
00023 * warranty that such application will be suitable for the specified
00024 * use without further testing or modification.
00025 * Permission to use, copy, modify, and distribute this software and its
00026 * documentation is hereby granted, under NXP Semiconductors'
00027 * relevant copyright in the software, without fee, provided that it
00028 * is used in conjunction with NXP Semiconductors microcontrollers.  This
00029 * copyright, permission, and disclaimer notice must appear in all copies of
00030 * this code.
00031 **********************************************************************/
00032 
00033 #ifndef __SYSTEM_LPC407x_8x_177x_8x_H
00034 #define __SYSTEM_LPC407x_8x_177x_8x_H
00035 
00036 #ifdef __cplusplus
00037 extern "C" {
00038 #endif
00039 
00040 #include <stdint.h>
00041 
00042 extern uint32_t SystemCoreClock;      /*!< System Clock Frequency (Core Clock)      */
00043 extern uint32_t PeripheralClock ;        /*!< Peripheral Clock Frequency (Pclk)      */
00044 extern uint32_t EMCClock ;                   /*!< EMC Clock                              */
00045 extern uint32_t USBClock ;                   /*!< USB Frequency                                    */
00046 
00047 
00048 /**
00049  * Initialize the system
00050  *
00051  * @param  none
00052  * @return none
00053  *
00054  * @brief  Setup the microcontroller system.
00055  *         Initialize the System and update the SystemCoreClock variable.
00056  */
00057 extern void SystemInit (void);
00058 
00059 /**
00060  * Update SystemCoreClock variable
00061  *
00062  * @param  none
00063  * @return none
00064  *
00065  * @brief  Updates the SystemCoreClock with current core Clock
00066  *         retrieved from cpu registers.
00067  */
00068 extern void SystemCoreClockUpdate (void);
00069 
00070 /*----------------------------------------------------------------------------
00071   Define clocks
00072  *----------------------------------------------------------------------------*/
00073 #define XTAL        (12000000UL)        /* Oscillator frequency               */
00074 #define OSC_CLK     (      XTAL)        /* Main oscillator frequency          */
00075 #define RTC_CLK     (   32768UL)        /* RTC oscillator frequency           */
00076 #define IRC_OSC     (12000000UL)        /* Internal RC oscillator frequency   */
00077 #define WDT_OSC       (  500000UL)      /* Internal WDT oscillator frequency  */
00078 
00079 
00080 
00081 /*
00082 //-------- <<< end of configuration section >>> ------------------------------
00083 */
00084 
00085 #ifdef __cplusplus
00086 }
00087 #endif
00088 
00089 #endif /* __SYSTEM_LPC407x_8x_177x_8x_H */