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/**
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/**
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  ******************************************************************************
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  ******************************************************************************
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  * @file    system_stm32l1xx.c
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  * @file    system_stm32l1xx.c
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  * @author  MCD Application Team
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  * @author  MCD Application Team
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  * @version V2.2.0
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  * @date    01-July-2016
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  * @brief   CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
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  * @brief   CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
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  *            
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  *            
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  *   This file provides two functions and one global variable to be called from
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  *   This file provides two functions and one global variable to be called from
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  *   user application:
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  *   user application:
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  *      - SystemInit(): This function is called at startup just after reset and
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  *      - SystemInit(): This function is called at startup just after reset and
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  *                                 during program execution.  
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  *                                 during program execution.  
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  *      
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  *      
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  ******************************************************************************
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  ******************************************************************************
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  * @attention
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  * @attention
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  *
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  *
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  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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  * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
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  * All rights reserved.</center></h2>
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  *
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  *
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  * Redistribution and use in source and binary forms, with or without modification,
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  * This software component is licensed by ST under BSD 3-Clause license,
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  * are permitted provided that the following conditions are met:
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  * the "License"; You may not use this file except in compliance with the
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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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  * License. You may obtain a copy of the License at:
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  *   3. Neither the name of STMicroelectronics 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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  *                        opensource.org/licenses/BSD-3-Clause
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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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  *
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  ******************************************************************************
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  ******************************************************************************
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  */
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  */
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/** @addtogroup CMSIS
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/** @addtogroup CMSIS
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/** @addtogroup STM32L1xx_System_Private_Defines
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/** @addtogroup STM32L1xx_System_Private_Defines
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  * @{
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  * @{
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  */
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  */
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#if !defined  (HSE_VALUE)
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#if !defined  (HSE_VALUE)
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  #define HSE_VALUE    ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz.
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  #define HSE_VALUE    ((uint32_t)8000000U) /*!< Default value of the External oscillator in Hz.
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                                                This value can be provided and adapted by the user application. */
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                                                This value can be provided and adapted by the user application. */
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#endif /* HSE_VALUE */
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#endif /* HSE_VALUE */
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#if !defined  (HSI_VALUE)
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#if !defined  (HSI_VALUE)
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  #define HSI_VALUE    ((uint32_t)8000000) /*!< Default value of the Internal oscillator in Hz.
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  #define HSI_VALUE    ((uint32_t)8000000U) /*!< Default value of the Internal oscillator in Hz.
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                                                This value can be provided and adapted by the user application. */
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                                                This value can be provided and adapted by the user application. */
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#endif /* HSI_VALUE */
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#endif /* HSI_VALUE */
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/*!< Uncomment the following line if you need to use external SRAM mounted
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/*!< Uncomment the following line if you need to use external SRAM mounted
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     on STM32L152D_EVAL board as data memory  */
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     on STM32L152D_EVAL board as data memory  */
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/* #define DATA_IN_ExtSRAM */
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/* #define DATA_IN_ExtSRAM */
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/*!< Uncomment the following line if you need to relocate your vector Table in
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/*!< Uncomment the following line if you need to relocate your vector Table in
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     Internal SRAM. */
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     Internal SRAM. */
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/* #define VECT_TAB_SRAM */
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/* #define VECT_TAB_SRAM */
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#define VECT_TAB_OFFSET  0x0 /*!< Vector Table base offset field.
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#define VECT_TAB_OFFSET  0x00U /*!< Vector Table base offset field.
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                                  This value must be a multiple of 0x200. */
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                                  This value must be a multiple of 0x200. */
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/**
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/**
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  * @}
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  * @}
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  */
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  */
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      3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
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      3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
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         Note: If you use this function to configure the system clock; then there
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         Note: If you use this function to configure the system clock; then there
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               is no need to call the 2 first functions listed above, since SystemCoreClock
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               is no need to call the 2 first functions listed above, since SystemCoreClock
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               variable is updated automatically.
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               variable is updated automatically.
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  */
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  */
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uint32_t SystemCoreClock        = 2097000;
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uint32_t SystemCoreClock        = 2097000U;
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const uint8_t PLLMulTable[9]    = {3, 4, 6, 8, 12, 16, 24, 32, 48};
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const uint8_t PLLMulTable[9]    = {3U, 4U, 6U, 8U, 12U, 16U, 24U, 32U, 48U};
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const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
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const uint8_t AHBPrescTable[16] = {0U, 0U, 0U, 0U, 0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U, 6U, 7U, 8U, 9U};
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const uint8_t APBPrescTable[8]  = {0, 0, 0, 0, 1, 2, 3, 4};
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const uint8_t APBPrescTable[8]  = {0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U};
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/**
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/**
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  * @}
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  * @}
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  */
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  */
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  * @param  None
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  * @param  None
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  * @retval None
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  * @retval None
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  */
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  */
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void SystemInit (void)
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void SystemInit (void)
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{
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{
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  /*!< Set MSION bit */
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  RCC->CR |= (uint32_t)0x00000100;
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  /*!< Reset SW[1:0], HPRE[3:0], PPRE1[2:0], PPRE2[2:0], MCOSEL[2:0] and MCOPRE[2:0] bits */
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  RCC->CFGR &= (uint32_t)0x88FFC00C;
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  /*!< Reset HSION, HSEON, CSSON and PLLON bits */
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  RCC->CR &= (uint32_t)0xEEFEFFFE;
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  /*!< Reset HSEBYP bit */
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  RCC->CR &= (uint32_t)0xFFFBFFFF;
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  /*!< Reset PLLSRC, PLLMUL[3:0] and PLLDIV[1:0] bits */
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  RCC->CFGR &= (uint32_t)0xFF02FFFF;
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  /*!< Disable all interrupts */
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  RCC->CIR = 0x00000000;
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#ifdef DATA_IN_ExtSRAM
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#ifdef DATA_IN_ExtSRAM
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  SystemInit_ExtMemCtl();
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  SystemInit_ExtMemCtl();
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#endif /* DATA_IN_ExtSRAM */
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#endif /* DATA_IN_ExtSRAM */
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#ifdef VECT_TAB_SRAM
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#ifdef VECT_TAB_SRAM