--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/f103c8/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c	Mon Jan 16 11:04:47 2017 +0300
@@ -0,0 +1,870 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_rcc_ex.c
+  * @author  MCD Application Team
+  * @version V1.0.4
+  * @date    29-April-2016
+  * @brief   Extended RCC HAL module driver.
+  *          This file provides firmware functions to manage the following 
+  *          functionalities RCC extension peripheral:
+  *           + Extended Peripheral Control functions
+  *  
+  ******************************************************************************
+  * @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
+  * @{
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/** @defgroup RCCEx RCCEx
+  * @brief RCC Extension HAL module driver.
+  * @{
+  */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup RCCEx_Private_Constants RCCEx Private Constants
+ * @{
+ */
+/**
+  * @}
+  */
+
+/* Private macro -------------------------------------------------------------*/
+/** @defgroup RCCEx_Private_Macros RCCEx Private Macros
+ * @{
+ */
+/**
+  * @}
+  */
+
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup RCCEx_Exported_Functions RCCEx Exported Functions
+  * @{
+  */
+
+/** @defgroup RCCEx_Exported_Functions_Group1 Peripheral Control functions 
+ *  @brief  Extended Peripheral Control functions  
+ *
+@verbatim   
+ ===============================================================================
+                ##### Extended Peripheral Control functions  #####
+ ===============================================================================  
+    [..]
+    This subsection provides a set of functions allowing to control the RCC Clocks 
+    frequencies.
+    [..] 
+    (@) Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to
+        select the RTC clock source; in this case the Backup domain will be reset in  
+        order to modify the RTC Clock source, as consequence RTC registers (including 
+        the backup registers) are set to their reset values.
+      
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the RCC extended peripherals clocks according to the specified parameters in the
+  *         RCC_PeriphCLKInitTypeDef.
+  * @param  PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+  *         contains the configuration information for the Extended Peripherals clocks(RTC clock).
+  *
+  * @note   Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select 
+  *         the RTC clock source; in this case the Backup domain will be reset in  
+  *         order to modify the RTC Clock source, as consequence RTC registers (including 
+  *         the backup registers) are set to their reset values.
+  *
+  * @note   In case of STM32F105xC or STM32F107xC devices, PLLI2S will be enabled if requested on 
+  *         one of 2 I2S interfaces. When PLLI2S is enabled, you need to call HAL_RCCEx_DisablePLLI2S to
+  *         manually disable it.
+  *
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef  *PeriphClkInit)
+{
+  uint32_t tickstart = 0, temp_reg = 0;
+#if defined(STM32F105xC) || defined(STM32F107xC)
+  uint32_t  pllactive = 0;
+#endif /* STM32F105xC || STM32F107xC */
+
+  /* Check the parameters */
+  assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+  
+  /*------------------------------- RTC/LCD Configuration ------------------------*/ 
+  if ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == RCC_PERIPHCLK_RTC))
+  {
+    /* check for RTC Parameters used to output RTCCLK */
+    assert_param(IS_RCC_RTCCLKSOURCE(PeriphClkInit->RTCClockSelection));
+
+    /* 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;
+      }      
+    }
+      
+    /* Reset the Backup domain only if the RTC Clock source selection is modified from reset value */ 
+    temp_reg = (RCC->BDCR & RCC_BDCR_RTCSEL);
+    if((temp_reg != 0x00000000U) && (temp_reg != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+    {
+      /* Store the content of BDCR register before the reset of Backup Domain */
+      temp_reg = (RCC->BDCR & ~(RCC_BDCR_RTCSEL));
+      /* RTC Clock selection can be changed only if the Backup Domain is reset */
+      __HAL_RCC_BACKUPRESET_FORCE();
+      __HAL_RCC_BACKUPRESET_RELEASE();
+      /* Restore the Content of BDCR register */
+      RCC->BDCR = temp_reg;
+
+      /* Wait for LSERDY if LSE was enabled */
+      if (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSEON))
+      {
+        /* Get timeout */
+        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;
+          }      
+        }  
+      }
+    }
+    __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection); 
+  }
+
+  /*------------------------------ ADC clock Configuration ------------------*/ 
+  if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC) == RCC_PERIPHCLK_ADC)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_ADCPLLCLK_DIV(PeriphClkInit->AdcClockSelection));
+    
+    /* Configure the ADC clock source */
+    __HAL_RCC_ADC_CONFIG(PeriphClkInit->AdcClockSelection);
+  }
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+  /*------------------------------ I2S2 Configuration ------------------------*/ 
+  if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S2) == RCC_PERIPHCLK_I2S2)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_I2S2CLKSOURCE(PeriphClkInit->I2s2ClockSelection));
+
+    /* Configure the I2S2 clock source */
+    __HAL_RCC_I2S2_CONFIG(PeriphClkInit->I2s2ClockSelection);
+  }
+
+  /*------------------------------ I2S3 Configuration ------------------------*/ 
+  if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S3) == RCC_PERIPHCLK_I2S3)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_I2S3CLKSOURCE(PeriphClkInit->I2s3ClockSelection));
+    
+    /* Configure the I2S3 clock source */
+    __HAL_RCC_I2S3_CONFIG(PeriphClkInit->I2s3ClockSelection);
+  }
+
+  /*------------------------------ PLL I2S Configuration ----------------------*/ 
+  /* Check that PLLI2S need to be enabled */
+  if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S2SRC) || HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+  {
+    /* Update flag to indicate that PLL I2S should be active */
+    pllactive = 1;
+  }
+
+  /* Check if PLL I2S need to be enabled */
+  if (pllactive == 1)
+  {
+    /* Enable PLL I2S only if not active */
+    if (HAL_IS_BIT_CLR(RCC->CR, RCC_CR_PLL3ON))
+    {
+      /* Check the parameters */
+      assert_param(IS_RCC_PLLI2S_MUL(PeriphClkInit->PLLI2S.PLLI2SMUL));
+      assert_param(IS_RCC_HSE_PREDIV2(PeriphClkInit->PLLI2S.HSEPrediv2Value));
+
+      /* Prediv2 can be written only when the PLL2 is disabled. */
+      /* Return an error only if new value is different from the programmed value */
+      if (HAL_IS_BIT_SET(RCC->CR,RCC_CR_PLL2ON) && \
+        (__HAL_RCC_HSE_GET_PREDIV2() != PeriphClkInit->PLLI2S.HSEPrediv2Value))
+      {
+        return HAL_ERROR;
+      }
+
+      /* Configure the HSE prediv2 factor --------------------------------*/
+      __HAL_RCC_HSE_PREDIV2_CONFIG(PeriphClkInit->PLLI2S.HSEPrediv2Value);
+
+      /* Configure the main PLLI2S multiplication factors. */
+      __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SMUL);
+      
+      /* Enable the main PLLI2S. */
+      __HAL_RCC_PLLI2S_ENABLE();
+      
+      /* Get Start Tick*/
+      tickstart = HAL_GetTick();
+      
+      /* Wait till PLLI2S is ready */
+      while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY)  == RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+        {
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+    else
+    {
+      /* Return an error only if user wants to change the PLLI2SMUL whereas PLLI2S is active */
+      if (READ_BIT(RCC->CFGR2, RCC_CFGR2_PLL3MUL) != PeriphClkInit->PLLI2S.PLLI2SMUL)
+      {
+          return HAL_ERROR;
+      }
+    }
+  }
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+  /*------------------------------ USB clock Configuration ------------------*/ 
+  if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB)
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_USBPLLCLK_DIV(PeriphClkInit->UsbClockSelection));
+    
+    /* Configure the USB clock source */
+    __HAL_RCC_USB_CONFIG(PeriphClkInit->UsbClockSelection);
+  }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Get the PeriphClkInit according to the internal
+  * RCC configuration registers.
+  * @param  PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that 
+  *         returns the configuration information for the Extended Peripherals clocks(RTC, I2S, ADC clocks).
+  * @retval None
+  */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef  *PeriphClkInit)
+{
+  uint32_t srcclk = 0;
+  
+  /* Set all possible values for the extended clock type parameter------------*/
+  PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_RTC;
+
+  /* Get the RTC configuration -----------------------------------------------*/
+  srcclk = __HAL_RCC_GET_RTC_SOURCE();
+  /* Source clock is LSE or LSI*/
+  PeriphClkInit->RTCClockSelection = srcclk;
+
+  /* Get the ADC clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC;
+  PeriphClkInit->AdcClockSelection = __HAL_RCC_GET_ADC_SOURCE();
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+  /* Get the I2S2 clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+  PeriphClkInit->I2s2ClockSelection = __HAL_RCC_GET_I2S2_SOURCE();
+
+  /* Get the I2S3 clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+  PeriphClkInit->I2s3ClockSelection = __HAL_RCC_GET_I2S3_SOURCE();
+
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F103xE) || defined(STM32F103xG)
+  /* Get the I2S2 clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+  PeriphClkInit->I2s2ClockSelection = RCC_I2S2CLKSOURCE_SYSCLK;
+
+  /* Get the I2S3 clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+  PeriphClkInit->I2s3ClockSelection = RCC_I2S3CLKSOURCE_SYSCLK;
+
+#endif /* STM32F103xE || STM32F103xG */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+  /* Get the USB clock configuration -----------------------------------------*/
+  PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB;
+  PeriphClkInit->UsbClockSelection = __HAL_RCC_GET_USB_SOURCE();
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+}
+
+/**
+  * @brief  Returns the peripheral clock frequency
+  * @note   Returns 0 if peripheral clock is unknown
+  * @param  PeriphClk Peripheral clock identifier
+  *         This parameter can be one of the following values:
+  *            @arg @ref RCC_PERIPHCLK_RTC  RTC peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_ADC  ADC peripheral clock
+  @if STM32F103xE
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  @endif
+  @if STM32F103xG
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  @endif
+  @if STM32F105xC
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_USB  USB peripheral clock
+  @endif
+  @if STM32F107xC
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+  *            @arg @ref RCC_PERIPHCLK_USB  USB peripheral clock
+  @endif
+  @if STM32F102xx
+  *            @arg @ref RCC_PERIPHCLK_USB  USB peripheral clock
+  @endif
+  @if STM32F103xx
+  *            @arg @ref RCC_PERIPHCLK_USB  USB peripheral clock
+  @endif
+  * @retval Frequency in Hz (0: means that no available frequency for the peripheral)
+  */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+#if defined(STM32F105xC) || defined(STM32F107xC)
+  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};
+  const uint8_t aPredivFactorTable[2] = { 1, 2};
+#endif
+#endif
+  uint32_t temp_reg = 0, frequency = 0;
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+  uint32_t prediv1 = 0, pllclk = 0, pllmul = 0;
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+#if defined(STM32F105xC) || defined(STM32F107xC)
+  uint32_t pll2mul = 0, pll3mul = 0, prediv2 = 0;
+#endif /* STM32F105xC || STM32F107xC */
+
+  /* Check the parameters */
+  assert_param(IS_RCC_PERIPHCLOCK(PeriphClk));
+  
+  switch (PeriphClk)
+  {
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+  case RCC_PERIPHCLK_USB:  
+    {
+      /* Get RCC configuration ------------------------------------------------------*/
+      temp_reg = RCC->CFGR;
+  
+      /* Check if PLL is enabled */
+      if (HAL_IS_BIT_SET(RCC->CR,RCC_CR_PLLON))
+      {
+        pllmul = aPLLMULFactorTable[(uint32_t)(temp_reg & RCC_CFGR_PLLMULL) >> POSITION_VAL(RCC_CFGR_PLLMULL)];
+        if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+        {
+#if defined(STM32F105xC) || defined(STM32F107xC) || defined(STM32F100xB)\
+ || defined(STM32F100xE)
+          prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> POSITION_VAL(RCC_CFGR2_PREDIV1)];
+#else
+          prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> POSITION_VAL(RCC_CFGR_PLLXTPRE)];
+#endif /* STM32F105xC || STM32F107xC || STM32F100xB || STM32F100xE */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+          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) / prediv1) * pllmul);
+          }
+          else
+          {
+            /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+            pllclk = (uint32_t)((HSE_VALUE / prediv1) * 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
+          if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+          {
+            /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+            pllclk = (uint32_t)((HSE_VALUE / prediv1) * pllmul);
+          }
+#endif /* STM32F105xC || STM32F107xC */
+        }
+        else
+        {
+          /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
+          pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul);
+        }
+
+        /* Calcul of the USB frequency*/
+#if defined(STM32F105xC) || defined(STM32F107xC)
+        /* USBCLK = PLLVCO = (2 x PLLCLK) / USB prescaler */
+        if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL_DIV2)
+        {
+          /* Prescaler of 2 selected for USB */ 
+          frequency = pllclk;
+        }
+        else
+        {
+          /* Prescaler of 3 selected for USB */ 
+          frequency = (2 * pllclk) / 3;
+        }
+#else
+        /* USBCLK = PLLCLK / USB prescaler */
+        if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL)
+        {
+          /* No prescaler selected for USB */
+          frequency = pllclk;
+        }
+        else
+        {
+          /* Prescaler of 1.5 selected for USB */ 
+          frequency = (pllclk * 2) / 3;
+        }
+#endif
+      }
+      break;
+    }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+#if defined(STM32F103xE) || defined(STM32F103xG) || defined(STM32F105xC)\
+ || defined(STM32F107xC)
+  case RCC_PERIPHCLK_I2S2:  
+    {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+      /* SYSCLK used as source clock for I2S2 */
+      frequency = HAL_RCC_GetSysClockFreq();
+#else
+      if (__HAL_RCC_GET_I2S2_SOURCE() == RCC_I2S2CLKSOURCE_SYSCLK)
+      {
+        /* SYSCLK used as source clock for I2S2 */
+        frequency = HAL_RCC_GetSysClockFreq();
+      }
+      else
+      {
+         /* Check if PLLI2S is enabled */
+        if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+        {
+          /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+          prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> POSITION_VAL(RCC_CFGR2_PREDIV2)) + 1;
+          pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> POSITION_VAL(RCC_CFGR2_PLL3MUL)) + 2;
+          frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+        }
+      }
+#endif /* STM32F103xE || STM32F103xG */
+      break;
+    }
+  case RCC_PERIPHCLK_I2S3:
+    {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+      /* SYSCLK used as source clock for I2S3 */
+      frequency = HAL_RCC_GetSysClockFreq();
+#else
+      if (__HAL_RCC_GET_I2S3_SOURCE() == RCC_I2S3CLKSOURCE_SYSCLK)
+      {
+        /* SYSCLK used as source clock for I2S3 */
+        frequency = HAL_RCC_GetSysClockFreq();
+      }
+      else
+      {
+         /* Check if PLLI2S is enabled */
+        if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+        {
+          /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+          prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> POSITION_VAL(RCC_CFGR2_PREDIV2)) + 1;
+          pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> POSITION_VAL(RCC_CFGR2_PLL3MUL)) + 2;
+          frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+        }
+      }
+#endif /* STM32F103xE || STM32F103xG */
+      break;
+    }
+#endif /* STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+  case RCC_PERIPHCLK_RTC:  
+    {
+      /* Get RCC BDCR configuration ------------------------------------------------------*/
+      temp_reg = RCC->BDCR;
+
+      /* Check if LSE is ready if RTC clock selection is LSE */
+      if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSE) && (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSERDY)))
+      {
+        frequency = LSE_VALUE;
+      }
+      /* Check if LSI is ready if RTC clock selection is LSI */
+      else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY)))
+      {
+        frequency = LSI_VALUE;
+      }
+      else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_HSE_DIV128) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY)))
+      {
+        frequency = HSE_VALUE / 128;
+      }
+      /* Clock not enabled for RTC*/
+      else
+      {
+        frequency = 0;
+      }
+      break;
+    }
+  case RCC_PERIPHCLK_ADC:  
+    {
+      frequency = HAL_RCC_GetPCLK2Freq() / (((__HAL_RCC_GET_ADC_SOURCE() >> POSITION_VAL(RCC_CFGR_ADCPRE_DIV4)) + 1) * 2);
+      break;
+    }
+  default: 
+    {
+      break;
+    }
+  }
+  return(frequency);
+}
+
+/**
+  * @}
+  */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+/** @defgroup RCCEx_Exported_Functions_Group2 PLLI2S Management function
+ *  @brief  PLLI2S Management functions
+ *
+@verbatim   
+ ===============================================================================
+                ##### Extended PLLI2S Management functions  #####
+ ===============================================================================  
+    [..]
+    This subsection provides a set of functions allowing to control the PLLI2S
+    activation or deactivation
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Enable PLLI2S
+  * @param  PLLI2SInit pointer to an RCC_PLLI2SInitTypeDef structure that
+  *         contains the configuration information for the PLLI2S
+  * @note   The PLLI2S configuration not modified if used by I2S2 or I2S3 Interface.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLLI2S(RCC_PLLI2SInitTypeDef  *PLLI2SInit)
+{
+  uint32_t tickstart = 0;
+
+  /* Check that PLL I2S has not been already enabled by I2S2 or I2S3*/
+  if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_PLLI2S_MUL(PLLI2SInit->PLLI2SMUL));
+    assert_param(IS_RCC_HSE_PREDIV2(PLLI2SInit->HSEPrediv2Value));
+
+    /* Prediv2 can be written only when the PLL2 is disabled. */
+    /* Return an error only if new value is different from the programmed value */
+    if (HAL_IS_BIT_SET(RCC->CR,RCC_CR_PLL2ON) && \
+      (__HAL_RCC_HSE_GET_PREDIV2() != PLLI2SInit->HSEPrediv2Value))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Disable the main PLLI2S. */
+    __HAL_RCC_PLLI2S_DISABLE();
+
+    /* Get Start Tick*/
+    tickstart = HAL_GetTick();
+    
+    /* Wait till PLLI2S is ready */  
+    while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY)  != RESET)
+    {
+      if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+      {
+        return HAL_TIMEOUT;
+      }
+    }
+
+    /* Configure the HSE prediv2 factor --------------------------------*/
+    __HAL_RCC_HSE_PREDIV2_CONFIG(PLLI2SInit->HSEPrediv2Value);
+    
+
+    /* Configure the main PLLI2S multiplication factors. */
+    __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SMUL);
+    
+    /* Enable the main PLLI2S. */
+    __HAL_RCC_PLLI2S_ENABLE();
+    
+    /* Get Start Tick*/
+    tickstart = HAL_GetTick();
+    
+    /* Wait till PLLI2S is ready */
+    while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY)  == RESET)
+    {
+      if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+      {
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  else
+  {
+    /* PLLI2S cannot be modified as already used by I2S2 or I2S3 */
+    return HAL_ERROR;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Disable PLLI2S
+  * @note   PLLI2S is not disabled if used by I2S2 or I2S3 Interface.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLLI2S(void)
+{
+  uint32_t tickstart = 0;
+
+  /* Disable PLL I2S as not requested by I2S2 or I2S3*/
+  if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+  {
+    /* Disable the main PLLI2S. */
+    __HAL_RCC_PLLI2S_DISABLE();
+
+    /* Get Start Tick*/
+    tickstart = HAL_GetTick();
+    
+    /* Wait till PLLI2S is ready */  
+    while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY)  != RESET)
+    {
+      if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+      {
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  else
+  {
+    /* PLLI2S is currently used by I2S2 or I2S3. Cannot be disabled.*/
+    return HAL_ERROR;
+  }
+  
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup RCCEx_Exported_Functions_Group3 PLL2 Management function
+ *  @brief  PLL2 Management functions
+ *
+@verbatim   
+ ===============================================================================
+                ##### Extended PLL2 Management functions  #####
+ ===============================================================================  
+    [..]
+    This subsection provides a set of functions allowing to control the PLL2
+    activation or deactivation
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Enable PLL2
+  * @param  PLL2Init pointer to an RCC_PLL2InitTypeDef structure that
+  *         contains the configuration information for the PLL2
+  * @note   The PLL2 configuration not modified if used indirectly as system clock.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLL2(RCC_PLL2InitTypeDef  *PLL2Init)
+{
+  uint32_t tickstart = 0;
+
+  /* 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
+  {
+    /* Check the parameters */
+    assert_param(IS_RCC_PLL2_MUL(PLL2Init->PLL2MUL));
+    assert_param(IS_RCC_HSE_PREDIV2(PLL2Init->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() != PLL2Init->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(PLL2Init->HSEPrediv2Value);
+
+    /* Configure the main PLL2 multiplication factors. */
+    __HAL_RCC_PLL2_CONFIG(PLL2Init->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;
+      }
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Disable PLL2
+  * @note   PLL2 is not disabled if used indirectly as system clock.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLL2(void)
+{
+  uint32_t tickstart = 0;
+
+  /* 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
+  {
+    /* 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;
+      }
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+#endif /* STM32F105xC || STM32F107xC */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+