tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC23XX/system_LPC23xx.h

   1 /* mbed Microcontroller Library
   2  * Copyright (C) 2008-2009 ARM Limited. All rights reserved.
   3  *
   4  * ARM7 version of CMSIS-like functionality - not advised for use outside mbed!
   5  * based on cmsis system_LPC17xx.h
   6  */
   7
   8 #ifndef __SYSTEM_LPC23xx_H
   9 #define __SYSTEM_LPC23xx_H
  10
  11 #ifdef __cplusplus
  12  extern "C" {
  13 #endif
  14
  15 extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */
  16
  17 /**
  18  * Initialize the system
  19  *
  20  * @param  none
  21  * @return none
  22  *
  23  * @brief  Setup the microcontroller system.
  24  *         Initialize the System and update the SystemCoreClock variable.
  25  */
  26 extern void SystemInit (void);
  27
  28 /**
  29  * Update SystemCoreClock variable
  30  *
  31  * @param  none
  32  * @return none
  33  *
  34  * @brief  Updates the SystemCoreClock with current core Clock
  35  *         retrieved from cpu registers.
  36  */
  37 extern void SystemCoreClockUpdate (void);
  38
  39
  40 #ifdef __cplusplus
  41 }
  42 #endif
  43
  44 #endif