--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/f103c8/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c	Mon Jan 16 11:04:47 2017 +0300
@@ -0,0 +1,1270 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_rcc.c
+  * @author  MCD Application Team
+  * @version V1.0.4
+  * @date    29-April-2016
+  * @brief   RCC HAL module driver.
+  *          This file provides firmware functions to manage the following 
+  *          functionalities of the Reset and Clock Control (RCC) peripheral:
+  *           + Initialization and de-initialization functions
+  *           + Peripheral Control functions
+  *       
+  @verbatim                
+  ==============================================================================
+                      ##### RCC specific features #####
+  ==============================================================================
+    [..]  
+      After reset the device is running from Internal High Speed oscillator
+      (HSI 8MHz) with Flash 0 wait state, Flash prefetch buffer is enabled, 
+      and all peripherals are off except internal SRAM, Flash and JTAG.
+      (+) There is no prescaler on High speed (AHB) and Low speed (APB) buses;
+          all peripherals mapped on these buses are running at HSI speed.
+      (+) The clock for all peripherals is switched off, except the SRAM and FLASH.
+      (+) All GPIOs are in input floating state, except the JTAG pins which
+          are assigned to be used for debug purpose.
+    [..] Once the device started from reset, the user application has to:
+      (+) Configure the clock source to be used to drive the System clock
+          (if the application needs higher frequency/performance)
+      (+) Configure the System clock frequency and Flash settings  
+      (+) Configure the AHB and APB buses prescalers
+      (+) Enable the clock for the peripheral(s) to be used
+      (+) Configure the clock source(s) for peripherals whose clocks are not
+          derived from the System clock (I2S, RTC, ADC, USB OTG FS) 
+
+                      ##### RCC Limitations #####
+  ==============================================================================
+    [..]  
+      A delay between an RCC peripheral clock enable and the effective peripheral 
+      enabling should be taken into account in order to manage the peripheral read/write 
+      from/to registers.
+      (+) This delay depends on the peripheral mapping.
+        (++) AHB & APB peripherals, 1 dummy read is necessary
+
+    [..]  
+      Workarounds:
+      (#) For AHB & APB peripherals, a dummy read to the peripheral register has been
+          inserted in each __HAL_RCC_PPP_CLK_ENABLE() macro.
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************  
+*/
+  
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup RCC RCC
+* @brief RCC HAL module driver
+  * @{
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup RCC_Private_Constants RCC Private Constants
+ * @{
+ */
+/* Bits position in  in the CFGR register */
+#define RCC_CFGR_HPRE_BITNUMBER           POSITION_VAL(RCC_CFGR_HPRE)
+#define RCC_CFGR_PPRE1_BITNUMBER          POSITION_VAL(RCC_CFGR_PPRE1)
+#define RCC_CFGR_PPRE2_BITNUMBER          POSITION_VAL(RCC_CFGR_PPRE2)
+/**
+  * @}
+  */
+/* Private macro -------------------------------------------------------------*/
+/** @defgroup RCC_Private_Macros RCC Private Macros
+  * @{
+  */
+
+#define MCO1_CLK_ENABLE()     __HAL_RCC_GPIOA_CLK_ENABLE()
+#define MCO1_GPIO_PORT        GPIOA
+#define MCO1_PIN              GPIO_PIN_8
+
+/**
+  * @}
+  */
+
+/* Private variables ---------------------------------------------------------*/
+/** @defgroup RCC_Private_Variables RCC Private Variables
+  * @{
+  */
+/**
+  * @}
+  */
+
+/* Private function prototypes -----------------------------------------------*/
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup RCC_Exported_Functions RCC Exported Functions
+  * @{
+  */
+
+/** @defgroup RCC_Exported_Functions_Group1 Initialization and de-initialization functions 
+  *  @brief    Initialization and Configuration functions 
+  *
+  @verbatim    
+  ===============================================================================
+           ##### Initialization and de-initialization functions #####
+  ===============================================================================
+    [..]
+      This section provides functions allowing to configure the internal/external oscillators
+      (HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System buses clocks (SYSCLK, AHB, APB1
+      and APB2).
+
+    [..] Internal/external clock and PLL configuration
+      (#) HSI (high-speed internal), 8 MHz factory-trimmed RC used directly or through
+          the PLL as System clock source.
+      (#) LSI (low-speed internal), ~40 KHz low consumption RC used as IWDG and/or RTC
+          clock source.
+
+      (#) HSE (high-speed external), 4 to 24 MHz (STM32F100xx) or 4 to 16 MHz (STM32F101x/STM32F102x/STM32F103x) or 3 to 25 MHz (STM32F105x/STM32F107x)  crystal oscillator used directly or
+          through the PLL as System clock source. Can be used also as RTC clock source.
+
+      (#) LSE (low-speed external), 32 KHz oscillator used as RTC clock source.   
+
+      (#) PLL (clocked by HSI or HSE), featuring different output clocks:
+        (++) The first output is used to generate the high speed system clock (up to 72 MHz for STM32F10xxx or up to 24 MHz for STM32F100xx)
+        (++) The second output is used to generate the clock for the USB OTG FS (48 MHz)
+
+      (#) CSS (Clock security system), once enable using the macro __HAL_RCC_CSS_ENABLE()
+          and if a HSE clock failure occurs(HSE used directly or through PLL as System 
+          clock source), the System clocks automatically switched to HSI and an interrupt
+          is generated if enabled. The interrupt is linked to the Cortex-M3 NMI 
+          (Non-Maskable Interrupt) exception vector.   
+
+      (#) MCO1 (microcontroller clock output), used to output SYSCLK, HSI,  
+          HSE or PLL clock (divided by 2) on PA8 pin + PLL2CLK, PLL3CLK/2, PLL3CLK and XTI for STM32F105x/STM32F107x
+
+    [..] System, AHB and APB buses clocks configuration
+      (#) Several clock sources can be used to drive the System clock (SYSCLK): HSI,
+          HSE and PLL.
+          The AHB clock (HCLK) is derived from System clock through configurable
+          prescaler and used to clock the CPU, memory and peripherals mapped
+          on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived
+          from AHB clock through configurable prescalers and used to clock
+          the peripherals mapped on these buses. You can use
+          "@ref HAL_RCC_GetSysClockFreq()" function to retrieve the frequencies of these clocks.
+
+      -@- All the peripheral clocks are derived from the System clock (SYSCLK) except:
+          (+@) RTC: RTC clock can be derived either from the LSI, LSE or HSE clock
+              divided by 128. 
+          (+@) USB OTG FS and RTC: USB OTG FS require a frequency equal to 48 MHz
+              to work correctly. This clock is derived of the main PLL through PLL Multiplier.
+          (+@) I2S interface on STM32F105x/STM32F107x can be derived from PLL3CLK
+          (+@) IWDG clock which is always the LSI clock.
+
+      (#) For STM32F10xxx, the maximum frequency of the SYSCLK and HCLK/PCLK2 is 72 MHz, PCLK1 36 MHz.
+          For STM32F100xx, the maximum frequency of the SYSCLK and HCLK/PCLK1/PCLK2 is 24 MHz.  
+          Depending on the SYSCLK frequency, the flash latency should be adapted accordingly.
+  @endverbatim
+  * @{
+  */
+  
+/*
+  Additional consideration on the SYSCLK based on Latency settings:
+        +-----------------------------------------------+
+        | Latency       | SYSCLK clock frequency (MHz)  |
+        |---------------|-------------------------------|
+        |0WS(1CPU cycle)|       0 < SYSCLK <= 24        |
+        |---------------|-------------------------------|
+        |1WS(2CPU cycle)|      24 < SYSCLK <= 48        |
+        |---------------|-------------------------------|
+        |2WS(3CPU cycle)|      48 < SYSCLK <= 72        |
+        +-----------------------------------------------+
+  */
+
+/**
+  * @brief  Resets the RCC clock configuration to the default reset state.
+  * @note   The default reset state of the clock configuration is given below:
+  *            - HSI ON and used as system clock source
+  *            - HSE and PLL OFF
+  *            - AHB, APB1 and APB2 prescaler set to 1.
+  *            - CSS and MCO1 OFF
+  *            - All interrupts disabled
+  * @note   This function does not modify the configuration of the
+  *            - Peripheral clocks
+  *            - LSI, LSE and RTC clocks
+  * @retval None
+  */
+void HAL_RCC_DeInit(void)
+{
+  /* Switch SYSCLK to HSI */
+  CLEAR_BIT(RCC->CFGR, RCC_CFGR_SW);
+
+  /* Reset HSEON, CSSON, & PLLON bits */
+  CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON);
+  
+  /* Reset HSEBYP bit */
+  CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);
+  
+  /* Reset CFGR register */
+  CLEAR_REG(RCC->CFGR);
+  
+  /* Set HSITRIM bits to the reset value */
+  MODIFY_REG(RCC->CR, RCC_CR_HSITRIM, ((uint32_t)0x10 << POSITION_VAL(RCC_CR_HSITRIM)));
+  
+#if (defined(STM32F105xC) || defined(STM32F107xC) || defined (STM32F100xB) || defined (STM32F100xE))
+  /* Reset CFGR2 register */
+  CLEAR_REG(RCC->CFGR2);
+
+#endif /* STM32F105xC || STM32F107xC || STM32F100xB || STM32F100xE */
+  /* Disable all interrupts */
+  CLEAR_REG(RCC->CIR);
+
+  /* Update the SystemCoreClock global variable */
+  SystemCoreClock = HSI_VALUE;
+}
+
+/**
+  * @brief  Initializes the RCC Oscillators according to the specified parameters in the
+  *         RCC_OscInitTypeDef.
+  * @param  RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that
+  *         contains the configuration information for the RCC Oscillators.
+  * @note   The PLL is not disabled when used as system clock.
+  * @note   The PLL is not disabled when USB OTG FS clock is enabled (specific to devices with USB FS)
+  * @note   Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not
+  *         supported by this macro. User should request a transition to LSE Off
+  *         first and then LSE On or LSE Bypass.
+  * @note   Transition HSE Bypass to HSE On and HSE On to HSE Bypass are not
+  *         supported by this macro. User should request a transition to HSE Off
+  *         first and then HSE On or HSE Bypass.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct)
+{
+   uint32_t tickstart = 0;
+  
+  /* Check the parameters */
+  assert_param(RCC_OscInitStruct != NULL);
+  assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType));
+  
+  /*------------------------------- HSE Configuration ------------------------*/ 
+  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState));
+        
+    /* When the HSE is used as system clock or clock source for PLL in these cases it is not allowed to be disabled */
+    if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE) 
+       || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE)))
+    {
+      if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState == RCC_HSE_OFF))
+      {
+        return HAL_ERROR;
+      }
+    }
+    else
+    {
+      /* Set the new HSE configuration ---------------------------------------*/
+      __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState);
+      
+
+       /* Check the HSE State */
+      if(RCC_OscInitStruct->HSEState != RCC_HSE_OFF)
+      {
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till HSE is ready */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+      else
+      {
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till HSE is disabled */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET)
+        {
+           if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+    }
+  }
+  /*----------------------------- HSI Configuration --------------------------*/ 
+  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState));
+    assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue));
+    
+    /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */ 
+    if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSI) 
+       || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI_DIV2)))
+    {
+      /* When HSI is used as system clock it will not disabled */
+      if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON))
+      {
+        return HAL_ERROR;
+      }
+      /* Otherwise, just the calibration is allowed */
+      else
+      {
+        /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
+        __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
+      }
+    }
+    else
+    {
+      /* Check the HSI State */
+      if(RCC_OscInitStruct->HSIState != RCC_HSI_OFF)
+      {
+       /* Enable the Internal High Speed oscillator (HSI). */
+        __HAL_RCC_HSI_ENABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till HSI is ready */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+                
+        /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
+        __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
+      }
+      else
+      {
+        /* Disable the Internal High Speed oscillator (HSI). */
+        __HAL_RCC_HSI_DISABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till HSI is disabled */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+    }
+  }
+  /*------------------------------ LSI Configuration -------------------------*/ 
+  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState));
+    
+    /* Check the LSI State */
+    if(RCC_OscInitStruct->LSIState != RCC_LSI_OFF)
+    {
+      /* Enable the Internal Low Speed oscillator (LSI). */
+      __HAL_RCC_LSI_ENABLE();
+      
+      /* Get Start Tick */
+      tickstart = HAL_GetTick();
+      
+      /* Wait till LSI is ready */  
+      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+      /*  To have a fully stabilized clock in the specified range, a software delay of 1ms 
+          should be added.*/
+      HAL_Delay(1);
+    }
+    else
+    {
+      /* Disable the Internal Low Speed oscillator (LSI). */
+      __HAL_RCC_LSI_DISABLE();
+      
+      /* Get Start Tick */
+      tickstart = HAL_GetTick();
+      
+      /* Wait till LSI is disabled */  
+      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  }
+  /*------------------------------ LSE Configuration -------------------------*/ 
+  if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState));
+
+    /* Enable Power Clock*/
+      __HAL_RCC_PWR_CLK_ENABLE();
+    
+      /* Enable write access to Backup domain */
+      SET_BIT(PWR->CR, PWR_CR_DBP);
+      
+      /* Wait for Backup domain Write protection disable */
+      tickstart = HAL_GetTick();
+
+    while((PWR->CR & PWR_CR_DBP) == RESET)
+      {
+        if((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+
+    /* Set the new LSE configuration -----------------------------------------*/
+    __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState);
+    /* Check the LSE State */
+    if(RCC_OscInitStruct->LSEState != RCC_LSE_OFF)
+    {
+      /* Get Start Tick */
+      tickstart = HAL_GetTick();
+      
+      /* Wait till LSE is ready */  
+      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+    else
+    {
+      /* Get Start Tick */
+      tickstart = HAL_GetTick();
+      
+      /* Wait till LSE is disabled */  
+      while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  }
+
+#if defined(RCC_CR_PLL2ON)
+  /*-------------------------------- PLL2 Configuration -----------------------*/
+  /* Check the parameters */
+  assert_param(IS_RCC_PLL2(RCC_OscInitStruct->PLL2.PLL2State));
+  if ((RCC_OscInitStruct->PLL2.PLL2State) != RCC_PLL2_NONE)
+  {
+    /* This bit can not be cleared if the PLL2 clock is used indirectly as system 
+      clock (i.e. it is used as PLL clock entry that is used as system clock). */
+    if((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+        (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+        ((READ_BIT(RCC->CFGR2,RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+    {
+      return HAL_ERROR;
+    }
+    else
+    {
+      if((RCC_OscInitStruct->PLL2.PLL2State) == RCC_PLL2_ON)
+      {
+        /* Check the parameters */
+        assert_param(IS_RCC_PLL2_MUL(RCC_OscInitStruct->PLL2.PLL2MUL));
+        assert_param(IS_RCC_HSE_PREDIV2(RCC_OscInitStruct->PLL2.HSEPrediv2Value));
+
+        /* Prediv2 can be written only when the PLLI2S is disabled. */
+        /* Return an error only if new value is different from the programmed value */
+        if (HAL_IS_BIT_SET(RCC->CR,RCC_CR_PLL3ON) && \
+          (__HAL_RCC_HSE_GET_PREDIV2() != RCC_OscInitStruct->PLL2.HSEPrediv2Value))
+        {
+          return HAL_ERROR;
+        }
+        
+        /* Disable the main PLL2. */
+        __HAL_RCC_PLL2_DISABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL2 is disabled */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+        
+        /* Configure the HSE prediv2 factor --------------------------------*/
+        __HAL_RCC_HSE_PREDIV2_CONFIG(RCC_OscInitStruct->PLL2.HSEPrediv2Value);
+
+        /* Configure the main PLL2 multiplication factors. */
+        __HAL_RCC_PLL2_CONFIG(RCC_OscInitStruct->PLL2.PLL2MUL);
+        
+        /* Enable the main PLL2. */
+        __HAL_RCC_PLL2_ENABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL2 is ready */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY)  == RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+      else
+      {
+       /* Set PREDIV1 source to HSE */
+        CLEAR_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC);
+
+        /* Disable the main PLL2. */
+        __HAL_RCC_PLL2_DISABLE();
+ 
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL2 is disabled */  
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY)  != RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+    }
+  }
+
+#endif /* RCC_CR_PLL2ON */
+  /*-------------------------------- PLL Configuration -----------------------*/
+  /* Check the parameters */
+  assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState));
+  if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE)
+  {
+    /* Check if the PLL is used as system clock or not */
+    if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK)
+    { 
+      if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON)
+      {
+        /* Check the parameters */
+        assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource));
+        assert_param(IS_RCC_PLL_MUL(RCC_OscInitStruct->PLL.PLLMUL));
+  
+        /* Disable the main PLL. */
+        __HAL_RCC_PLL_DISABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL is disabled */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY)  != RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+
+        /* Configure the HSE prediv factor --------------------------------*/
+        /* It can be written only when the PLL is disabled. Not used in PLL source is different than HSE */
+        if(RCC_OscInitStruct->PLL.PLLSource == RCC_PLLSOURCE_HSE)
+        {
+          /* Check the parameter */
+          assert_param(IS_RCC_HSE_PREDIV(RCC_OscInitStruct->HSEPredivValue));
+#if defined(RCC_CFGR2_PREDIV1SRC)
+          assert_param(IS_RCC_PREDIV1_SOURCE(RCC_OscInitStruct->Prediv1Source));
+          
+          /* Set PREDIV1 source */
+          SET_BIT(RCC->CFGR2, RCC_OscInitStruct->Prediv1Source);
+#endif /* RCC_CFGR2_PREDIV1SRC */
+
+          /* Set PREDIV1 Value */
+          __HAL_RCC_HSE_PREDIV_CONFIG(RCC_OscInitStruct->HSEPredivValue);
+        }
+
+        /* Configure the main PLL clock source and multiplication factors. */
+        __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
+                             RCC_OscInitStruct->PLL.PLLMUL);
+        /* Enable the main PLL. */
+        __HAL_RCC_PLL_ENABLE();
+        
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL is ready */
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY)  == RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+      else
+      {
+        /* Disable the main PLL. */
+        __HAL_RCC_PLL_DISABLE();
+ 
+        /* Get Start Tick */
+        tickstart = HAL_GetTick();
+        
+        /* Wait till PLL is disabled */  
+        while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY)  != RESET)
+        {
+          if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
+          {
+            return HAL_TIMEOUT;
+          }
+        }
+      }
+    }
+    else
+    {
+      return HAL_ERROR;
+    }
+  }
+  
+  return HAL_OK;
+}
+
+/**
+  * @brief  Initializes the CPU, AHB and APB buses clocks according to the specified 
+  *         parameters in the RCC_ClkInitStruct.
+  * @param  RCC_ClkInitStruct pointer to an RCC_OscInitTypeDef structure that
+  *         contains the configuration information for the RCC peripheral.
+  * @param  FLatency FLASH Latency                   
+  *          The value of this parameter depend on device used within the same series
+  * @note   The SystemCoreClock CMSIS variable is used to store System Clock Frequency 
+  *         and updated by @ref HAL_RCC_GetHCLKFreq() function called within this function
+  *
+  * @note   The HSI is used (enabled by hardware) as system clock source after
+  *         start-up from Reset, wake-up from STOP and STANDBY mode, or in case
+  *         of failure of the HSE used directly or indirectly as system clock
+  *         (if the Clock Security System CSS is enabled).
+  *           
+  * @note   A switch from one clock source to another occurs only if the target
+  *         clock source is ready (clock stable after start-up delay or PLL locked). 
+  *         If a clock source which is not yet ready is selected, the switch will
+  *         occur when the clock source will be ready. 
+  *         You can use @ref HAL_RCC_GetClockConfig() function to know which clock is
+  *         currently used as system clock source.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t FLatency)
+{
+  uint32_t tickstart = 0;
+  
+  /* Check the parameters */
+  assert_param(RCC_ClkInitStruct != NULL);
+  assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType));
+  assert_param(IS_FLASH_LATENCY(FLatency));
+
+  /* To correctly read data from FLASH memory, the number of wait states (LATENCY) 
+  must be correctly programmed according to the frequency of the CPU clock 
+    (HCLK) of the device. */
+
+#if defined(FLASH_ACR_LATENCY)
+  /* Increasing the number of wait states because of higher CPU frequency */
+  if(FLatency > (FLASH->ACR & FLASH_ACR_LATENCY))
+  {    
+    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
+    __HAL_FLASH_SET_LATENCY(FLatency);
+    
+    /* Check that the new number of wait states is taken into account to access the Flash
+    memory by reading the FLASH_ACR register */
+    if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency)
+    {
+      return HAL_ERROR;
+    }
+  }
+
+#endif /* FLASH_ACR_LATENCY */
+  /*-------------------------- HCLK Configuration --------------------------*/
+  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK)
+  {
+    assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
+    MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
+  }
+
+  /*------------------------- SYSCLK Configuration ---------------------------*/ 
+  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK)
+  {    
+    assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource));
+    
+    /* HSE is selected as System Clock Source */
+    if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE)
+    {
+      /* Check the HSE ready flag */  
+      if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET)
+      {
+        return HAL_ERROR;
+      }
+    }
+    /* PLL is selected as System Clock Source */
+    else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK)
+    {
+      /* Check the PLL ready flag */  
+      if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
+      {
+        return HAL_ERROR;
+      }
+    }
+    /* HSI is selected as System Clock Source */
+    else
+    {
+      /* Check the HSI ready flag */  
+      if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET)
+      {
+        return HAL_ERROR;
+      }
+    }
+    __HAL_RCC_SYSCLK_CONFIG(RCC_ClkInitStruct->SYSCLKSource);
+
+    /* Get Start Tick */
+    tickstart = HAL_GetTick();
+    
+    if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE)
+    {
+      while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_HSE)
+      {
+        if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+    else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK)
+    {
+      while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK)
+      {
+        if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+    else
+    {
+      while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_HSI)
+      {
+        if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }      
+  }    
+#if defined(FLASH_ACR_LATENCY)
+  /* Decreasing the number of wait states because of lower CPU frequency */
+  if(FLatency < (FLASH->ACR & FLASH_ACR_LATENCY))
+  {    
+    /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
+    __HAL_FLASH_SET_LATENCY(FLatency);
+    
+    /* Check that the new number of wait states is taken into account to access the Flash
+    memory by reading the FLASH_ACR register */
+    if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency)
+    {
+      return HAL_ERROR;
+    }
+  }    
+#endif /* FLASH_ACR_LATENCY */
+
+  /*-------------------------- PCLK1 Configuration ---------------------------*/ 
+  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1)
+  {
+    assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB1CLKDivider));
+    MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_ClkInitStruct->APB1CLKDivider);
+  }
+  
+  /*-------------------------- PCLK2 Configuration ---------------------------*/ 
+  if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2)
+  {
+    assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB2CLKDivider));
+    MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, ((RCC_ClkInitStruct->APB2CLKDivider) << 3));
+  }
+ 
+  /* Update the SystemCoreClock global variable */
+  SystemCoreClock = HAL_RCC_GetSysClockFreq() >> AHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE)>> RCC_CFGR_HPRE_BITNUMBER];
+
+  /* Configure the source of time base considering new system clocks settings*/
+  HAL_InitTick (TICK_INT_PRIORITY);
+  
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup RCC_Exported_Functions_Group2 Peripheral Control functions
+  *  @brief   RCC clocks control functions
+  *
+  @verbatim   
+  ===============================================================================
+                  ##### Peripheral Control functions #####
+  ===============================================================================  
+    [..]
+    This subsection provides a set of functions allowing to control the RCC Clocks 
+    frequencies.
+
+  @endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Selects the clock source to output on MCO pin.
+  * @note   MCO pin should be configured in alternate function mode.
+  * @param  RCC_MCOx specifies the output direction for the clock source.
+  *          This parameter can be one of the following values:
+  *            @arg @ref RCC_MCO1 Clock source to output on MCO1 pin(PA8).
+  * @param  RCC_MCOSource specifies the clock source to output.
+  *          This parameter can be one of the following values:
+  *            @arg @ref RCC_MCO1SOURCE_NOCLOCK     No clock selected as MCO clock
+  *            @arg @ref RCC_MCO1SOURCE_SYSCLK      System clock selected as MCO clock
+  *            @arg @ref RCC_MCO1SOURCE_HSI         HSI selected as MCO clock
+  *            @arg @ref RCC_MCO1SOURCE_HSE         HSE selected as MCO clock
+  @if STM32F105xC
+  *            @arg @ref RCC_MCO1SOURCE_PLLCLK       PLL clock divided by 2 selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL2CLK      PLL2 clock selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_EXT_HSE      XT1 external 3-25 MHz oscillator clock selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL3CLK      PLL3 clock selected as MCO source
+  @endif
+  @if STM32F107xC
+  *            @arg @ref RCC_MCO1SOURCE_PLLCLK       PLL clock divided by 2 selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL2CLK      PLL2 clock selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1  external 3-25 MHz oscillator clock selected as MCO source
+  *            @arg @ref RCC_MCO1SOURCE_PLL3CLK      PLL3 clock selected as MCO source
+  @endif
+  * @param  RCC_MCODiv specifies the MCO DIV.
+  *          This parameter can be one of the following values:
+  *            @arg @ref RCC_MCODIV_1 no division applied to MCO clock
+  * @retval None
+  */
+void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv)
+{
+  GPIO_InitTypeDef gpio = {0};
+
+  /* Check the parameters */
+  assert_param(IS_RCC_MCO(RCC_MCOx));
+  assert_param(IS_RCC_MCODIV(RCC_MCODiv));
+  assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource));
+  
+  /* Configure the MCO1 pin in alternate function mode */
+  gpio.Mode      = GPIO_MODE_AF_PP;
+  gpio.Speed     = GPIO_SPEED_FREQ_HIGH;
+  gpio.Pull      = GPIO_NOPULL;
+  gpio.Pin       = MCO1_PIN;
+
+  /* MCO1 Clock Enable */
+  MCO1_CLK_ENABLE();
+  
+  HAL_GPIO_Init(MCO1_GPIO_PORT, &gpio);
+  
+  /* Configure the MCO clock source */
+  __HAL_RCC_MCO1_CONFIG(RCC_MCOSource, RCC_MCODiv);
+}
+
+/**
+  * @brief  Enables the Clock Security System.
+  * @note   If a failure is detected on the HSE oscillator clock, this oscillator
+  *         is automatically disabled and an interrupt is generated to inform the
+  *         software about the failure (Clock Security System Interrupt, CSSI),
+  *         allowing the MCU to perform rescue operations. The CSSI is linked to 
+  *         the Cortex-M3 NMI (Non-Maskable Interrupt) exception vector.  
+  * @retval None
+  */
+void HAL_RCC_EnableCSS(void)
+{
+  *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)ENABLE;
+}
+
+/**
+  * @brief  Disables the Clock Security System.
+  * @retval None
+  */
+void HAL_RCC_DisableCSS(void)
+{
+  *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)DISABLE;
+}
+
+/**
+  * @brief  Returns the SYSCLK frequency     
+  * @note   The system frequency computed by this function is not the real 
+  *         frequency in the chip. It is calculated based on the predefined 
+  *         constant and the selected clock source:
+  * @note     If SYSCLK source is HSI, function returns values based on HSI_VALUE(*)
+  * @note     If SYSCLK source is HSE, function returns a value based on HSE_VALUE
+  *           divided by PREDIV factor(**)
+  * @note     If SYSCLK source is PLL, function returns a value based on HSE_VALUE
+  *           divided by PREDIV factor(**) or HSI_VALUE(*) multiplied by the PLL factor.
+  * @note     (*) HSI_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value
+  *               8 MHz) but the real value may vary depending on the variations
+  *               in voltage and temperature.
+  * @note     (**) HSE_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value
+  *                8 MHz), user has to ensure that HSE_VALUE is same as the real
+  *                frequency of the crystal used. Otherwise, this function may
+  *                have wrong result.
+  *                  
+  * @note   The result of this function could be not correct when using fractional
+  *         value for HSE crystal.
+  *           
+  * @note   This function can be used by the user application to compute the 
+  *         baud-rate for the communication peripherals or configure other parameters.
+  *           
+  * @note   Each time SYSCLK changes, this function must be called to update the
+  *         right SYSCLK value. Otherwise, any configuration based on this function will be incorrect.
+  *         
+  * @retval SYSCLK frequency
+  */
+uint32_t HAL_RCC_GetSysClockFreq(void)
+{
+#if   defined(RCC_CFGR2_PREDIV1SRC)
+  const uint8_t aPLLMULFactorTable[12] = {0, 0, 4,  5,  6,  7,  8,  9, 0, 0, 0, 13};
+  const uint8_t aPredivFactorTable[16] = { 1, 2,  3,  4,  5,  6,  7,  8, 9,10, 11, 12, 13, 14, 15, 16};
+#else
+  const uint8_t aPLLMULFactorTable[16] = { 2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 16};
+#if defined(RCC_CFGR2_PREDIV1)
+  const uint8_t aPredivFactorTable[16] = { 1, 2,  3,  4,  5,  6,  7,  8, 9,10, 11, 12, 13, 14, 15, 16};
+#else
+  const uint8_t aPredivFactorTable[2] = { 1, 2};
+#endif /*RCC_CFGR2_PREDIV1*/
+
+#endif
+  uint32_t tmpreg = 0, prediv = 0, pllclk = 0, pllmul = 0;
+  uint32_t sysclockfreq = 0;
+#if defined(RCC_CFGR2_PREDIV1SRC)
+  uint32_t prediv2 = 0, pll2mul = 0;
+#endif /*RCC_CFGR2_PREDIV1SRC*/
+  
+  tmpreg = RCC->CFGR;
+  
+  /* Get SYSCLK source -------------------------------------------------------*/
+  switch (tmpreg & RCC_CFGR_SWS)
+  {
+    case RCC_SYSCLKSOURCE_STATUS_HSE:  /* HSE used as system clock */
+    {
+      sysclockfreq = HSE_VALUE;
+      break;
+    }
+    case RCC_SYSCLKSOURCE_STATUS_PLLCLK:  /* PLL used as system clock */
+    {
+      pllmul = aPLLMULFactorTable[(uint32_t)(tmpreg & RCC_CFGR_PLLMULL) >> POSITION_VAL(RCC_CFGR_PLLMULL)];
+      if ((tmpreg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+      {
+#if defined(RCC_CFGR2_PREDIV1)
+        prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> POSITION_VAL(RCC_CFGR2_PREDIV1)];
+#else
+        prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> POSITION_VAL(RCC_CFGR_PLLXTPRE)];
+#endif /*RCC_CFGR2_PREDIV1*/
+#if defined(RCC_CFGR2_PREDIV1SRC)
+
+        if(HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC))
+        {
+          /* PLL2 selected as Prediv1 source */
+          /* PLLCLK = PLL2CLK / PREDIV1 * PLLMUL with PLL2CLK = HSE/PREDIV2 * PLL2MUL */
+          prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> POSITION_VAL(RCC_CFGR2_PREDIV2)) + 1;
+          pll2mul = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> POSITION_VAL(RCC_CFGR2_PLL2MUL)) + 2;
+          pllclk = (uint32_t)((((HSE_VALUE / prediv2) * pll2mul) / prediv) * pllmul);
+        }
+        else
+        {
+          /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+          pllclk = (uint32_t)((HSE_VALUE / prediv) * pllmul);
+        }
+        
+        /* If PLLMUL was set to 13 means that it was to cover the case PLLMUL 6.5 (avoid using float) */
+        /* In this case need to divide pllclk by 2 */
+        if (pllmul == aPLLMULFactorTable[(uint32_t)(RCC_CFGR_PLLMULL6_5) >> POSITION_VAL(RCC_CFGR_PLLMULL)])
+        {
+            pllclk = pllclk / 2;
+        }
+#else
+        /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+        pllclk = (uint32_t)((HSE_VALUE / prediv) * pllmul);
+#endif /*RCC_CFGR2_PREDIV1SRC*/
+      }
+      else
+      {
+        /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
+        pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul);
+      }
+      sysclockfreq = pllclk;
+      break;
+    }
+    case RCC_SYSCLKSOURCE_STATUS_HSI:  /* HSI used as system clock source */
+    default: /* HSI used as system clock */
+    {
+      sysclockfreq = HSI_VALUE;
+      break;
+    }
+  }
+  return sysclockfreq;
+}
+
+/**
+  * @brief  Returns the HCLK frequency     
+  * @note   Each time HCLK changes, this function must be called to update the
+  *         right HCLK value. Otherwise, any configuration based on this function will be incorrect.
+  * 
+  * @note   The SystemCoreClock CMSIS variable is used to store System Clock Frequency 
+  *         and updated within this function
+  * @retval HCLK frequency
+  */
+uint32_t HAL_RCC_GetHCLKFreq(void)
+{
+  return SystemCoreClock;
+}
+
+/**
+  * @brief  Returns the PCLK1 frequency     
+  * @note   Each time PCLK1 changes, this function must be called to update the
+  *         right PCLK1 value. Otherwise, any configuration based on this function will be incorrect.
+  * @retval PCLK1 frequency
+  */
+uint32_t HAL_RCC_GetPCLK1Freq(void)
+{
+  /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/
+  return (HAL_RCC_GetHCLKFreq() >> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE1) >> RCC_CFGR_PPRE1_BITNUMBER]);
+}    
+
+/**
+  * @brief  Returns the PCLK2 frequency     
+  * @note   Each time PCLK2 changes, this function must be called to update the
+  *         right PCLK2 value. Otherwise, any configuration based on this function will be incorrect.
+  * @retval PCLK2 frequency
+  */
+uint32_t HAL_RCC_GetPCLK2Freq(void)
+{
+  /* Get HCLK source and Compute PCLK2 frequency ---------------------------*/
+  return (HAL_RCC_GetHCLKFreq()>> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE2) >> RCC_CFGR_PPRE2_BITNUMBER]);
+} 
+
+/**
+  * @brief  Configures the RCC_OscInitStruct according to the internal 
+  * RCC configuration registers.
+  * @param  RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that 
+  * will be configured.
+  * @retval None
+  */
+void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct)
+{
+  /* Check the parameters */
+  assert_param(RCC_OscInitStruct != NULL);
+
+  /* Set all possible values for the Oscillator type parameter ---------------*/
+  RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI  \
+                  | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI;
+
+#if defined(RCC_CFGR2_PREDIV1SRC)
+  /* Get the Prediv1 source --------------------------------------------------*/
+  RCC_OscInitStruct->Prediv1Source = READ_BIT(RCC->CFGR2,RCC_CFGR2_PREDIV1SRC);
+#endif /* RCC_CFGR2_PREDIV1SRC */
+
+  /* Get the HSE configuration -----------------------------------------------*/
+  if((RCC->CR &RCC_CR_HSEBYP) == RCC_CR_HSEBYP)
+  {
+    RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS;
+  }
+  else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON)
+  {
+    RCC_OscInitStruct->HSEState = RCC_HSE_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->HSEState = RCC_HSE_OFF;
+  }
+  RCC_OscInitStruct->HSEPredivValue = __HAL_RCC_HSE_GET_PREDIV();
+
+  /* Get the HSI configuration -----------------------------------------------*/
+  if((RCC->CR &RCC_CR_HSION) == RCC_CR_HSION)
+  {
+    RCC_OscInitStruct->HSIState = RCC_HSI_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->HSIState = RCC_HSI_OFF;
+  }
+  
+  RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR & RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM));
+  
+  /* Get the LSE configuration -----------------------------------------------*/
+  if((RCC->BDCR &RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP)
+  {
+    RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS;
+  }
+  else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON)
+  {
+    RCC_OscInitStruct->LSEState = RCC_LSE_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->LSEState = RCC_LSE_OFF;
+  }
+  
+  /* Get the LSI configuration -----------------------------------------------*/
+  if((RCC->CSR &RCC_CSR_LSION) == RCC_CSR_LSION)
+  {
+    RCC_OscInitStruct->LSIState = RCC_LSI_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->LSIState = RCC_LSI_OFF;
+  }
+  
+
+  /* Get the PLL configuration -----------------------------------------------*/
+  if((RCC->CR &RCC_CR_PLLON) == RCC_CR_PLLON)
+  {
+    RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF;
+  }
+  RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC);
+  RCC_OscInitStruct->PLL.PLLMUL = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLMULL);
+#if defined(RCC_CR_PLL2ON)
+  /* Get the PLL2 configuration -----------------------------------------------*/
+  if((RCC->CR &RCC_CR_PLL2ON) == RCC_CR_PLL2ON)
+  {
+    RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_ON;
+  }
+  else
+  {
+    RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_OFF;
+  }
+  RCC_OscInitStruct->PLL2.HSEPrediv2Value = __HAL_RCC_HSE_GET_PREDIV2();
+  RCC_OscInitStruct->PLL2.PLL2MUL = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PLL2MUL);
+#endif /* RCC_CR_PLL2ON */
+}
+
+/**
+  * @brief  Get the RCC_ClkInitStruct according to the internal 
+  * RCC configuration registers.
+  * @param  RCC_ClkInitStruct pointer to an RCC_ClkInitTypeDef structure that 
+  * contains the current clock configuration.
+  * @param  pFLatency Pointer on the Flash Latency.
+  * @retval None
+  */
+void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t *pFLatency)
+{
+  /* Check the parameters */
+  assert_param(RCC_ClkInitStruct != NULL);
+  assert_param(pFLatency != NULL);
+
+  /* Set all possible values for the Clock type parameter --------------------*/
+  RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  
+  /* Get the SYSCLK configuration --------------------------------------------*/ 
+  RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW);
+  
+  /* Get the HCLK configuration ----------------------------------------------*/ 
+  RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_HPRE); 
+  
+  /* Get the APB1 configuration ----------------------------------------------*/ 
+  RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1);   
+  
+  /* Get the APB2 configuration ----------------------------------------------*/ 
+  RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3);
+  
+#if   defined(FLASH_ACR_LATENCY)
+  /* Get the Flash Wait State (Latency) configuration ------------------------*/   
+  *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY); 
+#else
+  /* For VALUE lines devices, only LATENCY_0 can be set*/
+  *pFLatency = (uint32_t)FLASH_LATENCY_0; 
+#endif
+}
+
+/**
+  * @brief This function handles the RCC CSS interrupt request.
+  * @note This API should be called under the NMI_Handler().
+  * @retval None
+  */
+void HAL_RCC_NMI_IRQHandler(void)
+{
+  /* Check RCC CSSF flag  */
+  if(__HAL_RCC_GET_IT(RCC_IT_CSS))
+  {
+    /* RCC Clock Security System interrupt user callback */
+    HAL_RCC_CSSCallback();
+    
+    /* Clear RCC CSS pending bit */
+    __HAL_RCC_CLEAR_IT(RCC_IT_CSS);
+  }
+}
+
+/**
+  * @brief  RCC Clock Security System interrupt callback
+  * @retval none
+  */
+__weak void HAL_RCC_CSSCallback(void)
+{
+  /* NOTE : This function Should not be modified, when the callback is needed,
+    the HAL_RCC_CSSCallback could be implemented in the user file
+    */ 
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/