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/**************************************************************************//**
* @file system_NUC123.h
* @version V3.0
* $Revision: 5 $
* $Date: 15/07/02 11:21a $
* @brief NUC123 Series CMSIS System Header File
*
* @note
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#ifndef __SYSTEM_NUC123_H
#define __SYSTEM_NUC123_H
#ifdef __cplusplus
extern "C" {
#endif
/*---------------------------------------------------------------------------------------------------------*/
/* Macro Definition */
/*---------------------------------------------------------------------------------------------------------*/
#ifndef DEBUG_PORT
# define DEBUG_PORT UART0 /*!< Select Debug Port which is used for retarget.c to output debug message to UART */
#endif
/*----------------------------------------------------------------------------
Define SYSCLK
*----------------------------------------------------------------------------*/
#define __HXT (12000000UL) /*!< External Crystal Clock Frequency */
#define __LXT (32768UL) /*!< External Crystal Clock Frequency 32.768KHz */
#define __HIRC (22118400UL) /*!< Internal 22M RC Oscillator Frequency */
#define __LIRC (10000UL) /*!< Internal 10K RC Oscillator Frequency */
#define __HSI (50000000UL) /*!< PLL default output is 50MHz */
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
extern uint32_t CyclesPerUs; /*!< Cycles per micro second */
extern uint32_t PllClock; /*!< PLL Output Clock Frequency */
/**
* Initialize the system
*
* @param none
* @return none
*
* @brief Setup the microcontroller system
* Initialize GPIO directions and values
*/
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);
#ifdef __cplusplus
}
#endif
#endif
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