rt-thread-official/libcpu/arm/lpc122x/CMSIS/system_LPC122x.h

46 lines
1.7 KiB
C

/******************************************************************************
* @file: system_LPC122x.h
* @purpose: CMSIS Cortex-M0 Device Peripheral Access Layer Header File
* for the NXP LPC122x Device Series
* @version: V1.0
* @date: 25. Nov. 2008
*----------------------------------------------------------------------------
*
* Copyright (C) 2008 ARM Limited. All rights reserved.
*
* ARM Limited (ARM) is supplying this software for use with Cortex-M0
* processor based microcontrollers. This file can be freely distributed
* within development tools that are supporting such ARM based processors.
*
* 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.
*
******************************************************************************/
#ifndef __SYSTEM_LPC122x_H
#define __SYSTEM_LPC122x_H
/* Vector Table Base ---------------------------------------------------------*/
#define NVIC_VectTab_RAM (0x10000000)
#define NVIC_VectTab_FLASH (0x00000000)
extern uint32_t ClockSource;
extern uint32_t SystemFrequency; /*!< System Clock Frequency (Core Clock) */
extern uint32_t SystemAHBFrequency;
/**
* Initialize the system
*
* @param none
* @return none
*
* @brief Setup the microcontroller system.
* Initialize the System and update the SystemFrequency variable.
*/
extern void SystemInit (void);
#endif