tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC81X/system_LPC8xx.h

   1 /******************************************************************************
   2  * @file:    system_LPC8xx.h
   3  * @purpose: CMSIS Cortex-M0+ Device Peripheral Access Layer Header File
   4  *           for the NXP LPC8xx Device Series
   5  * @version: V1.0
   6  * @date:    16. Aug. 2012
   7  *----------------------------------------------------------------------------
   8  *
   9  * Copyright (C) 2012 ARM Limited. All rights reserved.
  10  *
  11  * ARM Limited (ARM) is supplying this software for use with Cortex-M0+
  12  * processor based microcontrollers.  This file can be freely distributed
  13  * within development tools that are supporting such ARM based processors.
  14  *
  15  * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
  16  * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
  17  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
  18  * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
  19  * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  20  *
  21  ******************************************************************************/
  22
  23
  24 #ifndef __SYSTEM_LPC8xx_H
  25 #define __SYSTEM_LPC8xx_H
  26
  27 #ifdef __cplusplus
  28 extern "C" {
  29 #endif
  30
  31 #include <stdint.h>
  32
  33 extern uint32_t MainClock;           /*!< Main Clock Frequency                 */
  34 extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */
  35
  36
  37 /**
  38  * Initialize the system
  39  *
  40  * @param  none
  41  * @return none
  42  *
  43  * @brief  Setup the microcontroller system.
  44  *         Initialize the System and update the SystemCoreClock variable.
  45  */
  46 extern void SystemInit (void);
  47
  48 /**
  49  * Update SystemCoreClock variable
  50  *
  51  * @param  none
  52  * @return none
  53  *
  54  * @brief  Updates the SystemCoreClock with current core Clock
  55  *         retrieved from cpu registers.
  56  */
  57 extern void SystemCoreClockUpdate (void);
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif /* __SYSTEM_LPC8xx_H */