/**************************************************************************//**
?*?@file?????system_LPC11xx.c
?*?@brief????CMSIS?Cortex-M0?Device?Peripheral?Access?layer?Source?File
?*???????????for?the?NXP?LPC11xx/LPC11Cxx?Devices
?*?@version??V1.10
?*?@date?????24.?November?2010
?*
?*?@note
?*?Copyright?（C）?2009-2010?ARM?Limited.?All?rights?reserved.
?*
?*?@par
?*?ARM?Limited?（ARM）?is?supplying?this?software?for?use?with?Cortex-M?
?*?processor?based?microcontrollers.??This?file?can?be?freely?distributed?
?*?within?development?tools?that?are?supporting?such?ARM?based?processors.?
?*
?*?@par
?*?THIS?SOFTWARE?IS?PROVIDED?“AS?IS“.??NO?WARRANTIES?WHETHER?EXPRESS?IMPLIED
?*?OR?STATUTORY?INCLUDING?BUT?NOT?LIMITED?TO?IMPLIED?WARRANTIES?OF
?*?MERCHANTABILITY?AND?FITNESS?FOR?A?PARTICULAR?PURPOSE?APPLY?TO?THIS?SOFTWARE.
?*?ARM?SHALL?NOT?IN?ANY?CIRCUMSTANCES?BE?LIABLE?FOR?SPECIAL?INCIDENTAL?OR
?*?CONSEQUENTIAL?DAMAGES?FOR?ANY?REASON?WHATSOEVER.
?*
?******************************************************************************/


#include?
#include?“LPC11xx.h“

/*
//--------?<<>>?------------------
*/

/*---------------------?Clock?Configuration?----------------------------------
//
//??Clock?Configuration
//????System?Oscillator?Control?Register?（SYSOSCCTRL）
//???????????BYPASS:?System?Oscillator?Bypass?Enable
//??????????????????????If?enabled?then?PLL?input?（sys_osc_clk）?is?fed
//??????????????????????directly?from?XTALIN?and?XTALOUT?pins.
//???????????FREQRANGE:?System?Oscillator?Frequency?Range
//??????????????????????Determines?frequency?range?for?Low-power?oscillator.
//???????????????????<0=>?1?-?20?MHz
//???????????????????<1=>?15?-?25?MHz
//???
//
//????Watchdog?Oscillator?Control?Register?（WDTOSCCTRL）
//????????DIVSEL:?Select?Divider?for?Fclkana
//??????????????????????wdt_osc_clk?=?Fclkana/?（2??（1?+?DIVSEL））
//???????????????????<0-31>
//????????FREQSEL:?Select?Watchdog?Oscillator?Analog?Output?Frequency?（Fclkana）
//???????????????????<0=>?Undefined
//???????????????????<1=>?0.5?MHz
//???????????????????<2=>?0.8?MHz
//???????????????????<3=>?1.1?MHz
//???????????????????<4=>?1.4?MHz
//???????????????????<5=>?1.6?MHz
//???????????????????<6=>?1.8?MHz
//???????????????????<7=>?2.0?MHz
//???????????????????<8=>?2.2?MHz
//???????????????????<9=>?2.4?MHz
//???????????????????<10=>?2.6?MHz
//???????????????????<11=>?2.7?MHz
//???????????????????<12=>?2.9?MHz
//???????????????????<13=>?3.1?MHz
//???????????????????<14=>?3.2?MHz
//???????????????????<15=>?3.4?MHz
//???
//
//????System?PLL?Control?Register?（SYSPLLCTRL）
//????????????????????F_clkout?=?M?*?F_clkin?=?F_CCO?/?（2?*?P）
//????????????????????F_clkin?must?be?in?the?range?of??10?MHz?to??25?MHz
//????????????????????F_CCO???must?be?in?the?range?of?156?MHz?to?320?MHz
//????????MSEL:?Fe