/********************************************************************** * $Id: system_LPC177x_8x.h 7485 2011-06-03 07:57:16Z sgg06786 $ system_LPC177x_8x.h 2011-06-02 *//** * @file system_LPC177x_8x.h * @brief CMSIS Cortex-M3 Device Peripheral Access Layer Source File * for the NXP LPC177x_8x Device Series * @version 1.0 * @date 02. June. 2011 * @author NXP MCU SW Application Team * * Copyright(C) 2011, NXP Semiconductor * All rights reserved. * *********************************************************************** * Software that is described herein is for illustrative purposes only * which provides customers with programming information regarding the * products. This software is supplied "AS IS" without any warranties. * NXP Semiconductors assumes no responsibility or liability for the * use of the software, conveys no license or title under any patent, * copyright, or mask work right to the product. NXP Semiconductors * reserves the right to make changes in the software without * notification. NXP Semiconductors also make no representation or * warranty that such application will be suitable for the specified * use without further testing or modification. **********************************************************************/ #ifndef __SYSTEM_LPC177x_8x_H #define __SYSTEM_LPC177x_8x_H #ifdef __cplusplus extern "C" { #endif #include extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ extern uint32_t PeripheralClock; /*!< Peripheral Clock Frequency (Pclk) */ extern uint32_t EMCClock; /*!< EMC Clock */ extern uint32_t USBClock; /*!< USB Frequency */ /** * Initialize the system * * @param none * @return none * * @brief Setup the microcontroller system. * Initialize the System and update the SystemCoreClock variable. */ extern void SystemInit (void); /** * Update SystemCoreClock variable * * @param none * @return none * * @brief Updates the SystemCoreClock with current core Clock * retrieved from cpu registers. */ extern void SystemCoreClockUpdate (void); /*---------------------------------------------------------------------------- Define clocks *----------------------------------------------------------------------------*/ #define XTAL (12000000UL) /* Oscillator frequency */ #define OSC_CLK ( XTAL) /* Main oscillator frequency */ #define RTC_CLK ( 32768UL) /* RTC oscillator frequency */ #define IRC_OSC (12000000UL) /* Internal RC oscillator frequency */ #define WDT_OSC ( 500000UL) /* Internal WDT oscillator frequency */ /* //-------- <<< end of configuration section >>> ------------------------------ */ #ifdef __cplusplus } #endif #endif /* __SYSTEM_LPC177x_8x_H */