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104 lines
3.8 KiB
C
104 lines
3.8 KiB
C
/**************************************************************************//**
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* @file system_M251.h
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* @version V0.10
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* @brief System Setting Header File
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2019 Nuvoton Technology Corp. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of Nuvoton Technology Corp. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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****************************************************************************/
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#ifndef __SYSTEM_M251_H__
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#define __SYSTEM_M251_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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/*----------------------------------------------------------------------------
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Define clocks
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*----------------------------------------------------------------------------*/
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#define __HXT (12000000UL) /*!< External Crystal Clock Frequency */
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#define __LXT (32768UL) /*!< External Crystal Clock Frequency 32.768KHz */
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#define __LIRC (38400UL) /*!< Internal 38.4KHz RC Oscillator Frequency */
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#define __MIRC (4032000UL) /*!< Internal 4.032M RC Oscillator Frequency */
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#define __HIRC (48000000UL) /*!< Internal 48M RC Oscillator Frequency */
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#define __HSI (48000000UL) /*!< PLL default output is 48MHz */
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#define __SYS_OSC_CLK ( ___HSI) /*!< Main oscillator frequency */
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#if MBED_CONF_TARGET_HXT_PRESENT
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#define __SYSTEM_CLOCK (1UL*__HXT)
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#else
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#define __SYSTEM_CLOCK (1UL*__HIRC)
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#endif
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extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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extern uint32_t CyclesPerUs; /*!< Cycles per micro second */
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extern uint32_t PllClock; /*!< PLL Output Clock Frequency */
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/**
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* Initialize the system
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*
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* @param none
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* @return none
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*
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* @brief Setup the micro controller system.
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* Initialize the System and update the SystemCoreClock variable.
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*/
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extern void SystemInit(void);
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/**
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* Update SystemCoreClock variable
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*
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* @param none
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* @return none
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*
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* @brief Updates the SystemCoreClock with current core Clock
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* retrieved from cpu registers.
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*/
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extern void SystemCoreClockUpdate(void);
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/**
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* Set UART0 default multi function pin
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*
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* @param none
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* @return none
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*
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* @brief The initialization of uart0 default multiple-function pin.
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*/
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extern void Uart0DefaultMPF(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SYSTEM_M251_H__ */
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/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
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