diff options
| author | Aditya Naik | 2021-04-20 13:11:16 -0400 |
|---|---|---|
| committer | Aditya Naik | 2021-04-20 13:11:16 -0400 |
| commit | ae4978977d3a2ca1e9493c1152aed35078fd846e (patch) | |
| tree | 34dee1775ef3c63dd443cb0c18c2fdd1e19c1eb6 /lib/f4/stm32f4xx_hal_rcc_ex.c | |
Cleanup and README
Diffstat (limited to 'lib/f4/stm32f4xx_hal_rcc_ex.c')
| -rw-r--r-- | lib/f4/stm32f4xx_hal_rcc_ex.c | 3754 |
1 files changed, 3754 insertions, 0 deletions
diff --git a/lib/f4/stm32f4xx_hal_rcc_ex.c b/lib/f4/stm32f4xx_hal_rcc_ex.c new file mode 100644 index 0000000..bca349c --- /dev/null +++ b/lib/f4/stm32f4xx_hal_rcc_ex.c @@ -0,0 +1,3754 @@ +/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_rcc_ex.c
+ * @author MCD Application Team
+ * @brief Extension RCC HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities RCC extension peripheral:
+ * + Extended Peripheral Control functions
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup RCCEx RCCEx
+ * @brief RCCEx HAL module driver
+ * @{
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @addtogroup RCCEx_Private_Constants
+ * @{
+ */
+/**
+ * @}
+ */
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+/** @defgroup RCCEx_Exported_Functions RCCEx Exported Functions
+ * @{
+ */
+
+/** @defgroup RCCEx_Exported_Functions_Group1 Extended 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) and RCC_BDCR register are set to their reset values.
+
+@endverbatim
+ * @{
+ */
+
+#if defined(STM32F446xx)
+/**
+ * @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(I2S, SAI, LTDC RTC and TIM).
+ *
+ * @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) and RCC_BDCR register are set to their reset values.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+ uint32_t plli2sp = 0U;
+ uint32_t plli2sq = 0U;
+ uint32_t plli2sr = 0U;
+ uint32_t pllsaip = 0U;
+ uint32_t pllsaiq = 0U;
+ uint32_t plli2sused = 0U;
+ uint32_t pllsaiused = 0U;
+
+ /* Check the peripheral clock selection parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*------------------------ I2S APB1 configuration --------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB1) == (RCC_PERIPHCLK_I2S_APB1))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2SAPB1CLKSOURCE(PeriphClkInit->I2sApb1ClockSelection));
+
+ /* Configure I2S Clock source */
+ __HAL_RCC_I2S_APB1_CONFIG(PeriphClkInit->I2sApb1ClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for I2S */
+ if(PeriphClkInit->I2sApb1ClockSelection == RCC_I2SAPB1CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- I2S APB2 configuration ----------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB2) == (RCC_PERIPHCLK_I2S_APB2))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2SAPB2CLKSOURCE(PeriphClkInit->I2sApb2ClockSelection));
+
+ /* Configure I2S Clock source */
+ __HAL_RCC_I2S_APB2_CONFIG(PeriphClkInit->I2sApb2ClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for I2S */
+ if(PeriphClkInit->I2sApb2ClockSelection == RCC_I2SAPB2CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*--------------------------- SAI1 configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == (RCC_PERIPHCLK_SAI1))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SAI1CLKSOURCE(PeriphClkInit->Sai1ClockSelection));
+
+ /* Configure SAI1 Clock source */
+ __HAL_RCC_SAI1_CONFIG(PeriphClkInit->Sai1ClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for SAI */
+ if(PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ /* Enable the PLLSAI when it's used as clock source for SAI */
+ if(PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLSAI)
+ {
+ pllsaiused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*-------------------------- SAI2 configuration ----------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == (RCC_PERIPHCLK_SAI2))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SAI2CLKSOURCE(PeriphClkInit->Sai2ClockSelection));
+
+ /* Configure SAI2 Clock source */
+ __HAL_RCC_SAI2_CONFIG(PeriphClkInit->Sai2ClockSelection);
+
+ /* Enable the PLLI2S when it's used as clock source for SAI */
+ if(PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ /* Enable the PLLSAI when it's used as clock source for SAI */
+ if(PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLSAI)
+ {
+ pllsaiused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------------- RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- TIM configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ /* Configure Timer Prescaler */
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- FMPI2C1 Configuration -----------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_FMPI2C1) == RCC_PERIPHCLK_FMPI2C1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_FMPI2C1CLKSOURCE(PeriphClkInit->Fmpi2c1ClockSelection));
+
+ /* Configure the FMPI2C1 clock source */
+ __HAL_RCC_FMPI2C1_CONFIG(PeriphClkInit->Fmpi2c1ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------ CEC Configuration -------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CEC) == RCC_PERIPHCLK_CEC)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_CECCLKSOURCE(PeriphClkInit->CecClockSelection));
+
+ /* Configure the CEC clock source */
+ __HAL_RCC_CEC_CONFIG(PeriphClkInit->CecClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------------- CLK48 Configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_CLK48CLKSOURCE(PeriphClkInit->Clk48ClockSelection));
+
+ /* Configure the CLK48 clock source */
+ __HAL_RCC_CLK48_CONFIG(PeriphClkInit->Clk48ClockSelection);
+
+ /* Enable the PLLSAI when it's used as clock source for CLK48 */
+ if(PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLSAIP)
+ {
+ pllsaiused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------------- SDIO Configuration -------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDIO) == RCC_PERIPHCLK_SDIO)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SDIOCLKSOURCE(PeriphClkInit->SdioClockSelection));
+
+ /* Configure the SDIO clock source */
+ __HAL_RCC_SDIO_CONFIG(PeriphClkInit->SdioClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------ SPDIFRX Configuration ---------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SPDIFRX) == RCC_PERIPHCLK_SPDIFRX)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SPDIFRXCLKSOURCE(PeriphClkInit->SpdifClockSelection));
+
+ /* Configure the SPDIFRX clock source */
+ __HAL_RCC_SPDIFRX_CONFIG(PeriphClkInit->SpdifClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for SPDIFRX */
+ if(PeriphClkInit->SpdifClockSelection == RCC_SPDIFRXCLKSOURCE_PLLI2SP)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- PLLI2S Configuration ------------------------*/
+ /* PLLI2S is configured when a peripheral will use it as source clock : SAI1, SAI2, I2S on APB1,
+ I2S on APB2 or SPDIFRX */
+ if((plli2sused == 1U) || (PeriphClkInit->PeriphClockSelection == RCC_PERIPHCLK_PLLI2S))
+ {
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLI2S is disabled */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* check for common PLLI2S Parameters */
+ assert_param(IS_RCC_PLLI2SM_VALUE(PeriphClkInit->PLLI2S.PLLI2SM));
+ assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN));
+
+ /*------ In Case of PLLI2S is selected as source clock for I2S -----------*/
+ if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB1) == RCC_PERIPHCLK_I2S_APB1) && (PeriphClkInit->I2sApb1ClockSelection == RCC_I2SAPB1CLKSOURCE_PLLI2S)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB2) == RCC_PERIPHCLK_I2S_APB2) && (PeriphClkInit->I2sApb2ClockSelection == RCC_I2SAPB2CLKSOURCE_PLLI2S)))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+
+ /* Read PLLI2SP/PLLI2SQ value from PLLI2SCFGR register (this value is not needed for I2S configuration) */
+ plli2sp = ((((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> RCC_PLLI2SCFGR_PLLI2SP_Pos) + 1U) << 1U);
+ plli2sq = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , plli2sp, plli2sq, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /*------- In Case of PLLI2S is selected as source clock for SAI ----------*/
+ if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == RCC_PERIPHCLK_SAI1) && (PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLI2S)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == RCC_PERIPHCLK_SAI2) && (PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLI2S)))
+ {
+ /* Check for PLLI2S Parameters */
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+ /* Check for PLLI2S/DIVQ parameters */
+ assert_param(IS_RCC_PLLI2S_DIVQ_VALUE(PeriphClkInit->PLLI2SDivQ));
+
+ /* Read PLLI2SP/PLLI2SR value from PLLI2SCFGR register (this value is not needed for SAI configuration) */
+ plli2sp = ((((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> RCC_PLLI2SCFGR_PLLI2SP_Pos) + 1U) << 1U);
+ plli2sr = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , plli2sp, PeriphClkInit->PLLI2S.PLLI2SQ, plli2sr);
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
+ __HAL_RCC_PLLI2S_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLI2SDivQ);
+ }
+
+ /*------ In Case of PLLI2S is selected as source clock for SPDIFRX -------*/
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SPDIFRX) == RCC_PERIPHCLK_SPDIFRX) && (PeriphClkInit->SpdifClockSelection == RCC_SPDIFRXCLKSOURCE_PLLI2SP))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SP_VALUE(PeriphClkInit->PLLI2S.PLLI2SP));
+ /* Read PLLI2SR value from PLLI2SCFGR register (this value is not need for SAI configuration) */
+ plli2sq = ((((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> RCC_PLLI2SCFGR_PLLI2SP_Pos) + 1U) << 1U);
+ plli2sr = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ /* SPDIFRXCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SP */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SP, plli2sq, plli2sr);
+ }
+
+ /*----------------- In Case of PLLI2S is just selected -----------------*/
+ if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S)
+ {
+ /* Check for Parameters */
+ assert_param(IS_RCC_PLLI2SP_VALUE(PeriphClkInit->PLLI2S.PLLI2SP));
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SP, PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+ /* Get 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 in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------------- PLLSAI Configuration -----------------------*/
+ /* PLLSAI is configured when a peripheral will use it as source clock : SAI1, SAI2, CLK48 or SDIO */
+ if(pllsaiused == 1U)
+ {
+ /* Disable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is disabled */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Check the PLLSAI division factors */
+ assert_param(IS_RCC_PLLSAIM_VALUE(PeriphClkInit->PLLSAI.PLLSAIM));
+ assert_param(IS_RCC_PLLSAIN_VALUE(PeriphClkInit->PLLSAI.PLLSAIN));
+
+ /*------ In Case of PLLSAI is selected as source clock for SAI -----------*/
+ if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == RCC_PERIPHCLK_SAI1) && (PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLSAI)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == RCC_PERIPHCLK_SAI2) && (PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLSAI)))
+ {
+ /* check for PLLSAIQ Parameter */
+ assert_param(IS_RCC_PLLSAIQ_VALUE(PeriphClkInit->PLLSAI.PLLSAIQ));
+ /* check for PLLSAI/DIVQ Parameter */
+ assert_param(IS_RCC_PLLSAI_DIVQ_VALUE(PeriphClkInit->PLLSAIDivQ));
+
+ /* Read PLLSAIP value from PLLSAICFGR register (this value is not needed for SAI configuration) */
+ pllsaip = ((((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> RCC_PLLSAICFGR_PLLSAIP_Pos) + 1U) << 1U);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIM, PeriphClkInit->PLLSAI.PLLSAIN , pllsaip, PeriphClkInit->PLLSAI.PLLSAIQ, 0U);
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
+ __HAL_RCC_PLLSAI_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLSAIDivQ);
+ }
+
+ /*------ In Case of PLLSAI is selected as source clock for CLK48 ---------*/
+ /* In Case of PLLI2S is selected as source clock for CLK48 */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48) && (PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLSAIP))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLSAIP_VALUE(PeriphClkInit->PLLSAI.PLLSAIP));
+ /* Read PLLSAIQ value from PLLI2SCFGR register (this value is not need for SAI configuration) */
+ pllsaiq = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* Configure the PLLSAI division factors */
+ /* PLLSAI_VCO = f(VCO clock) = f(PLLSAI clock input) * (PLLI2SN/PLLSAIM) */
+ /* 48CLK = f(PLLSAI clock output) = f(VCO clock) / PLLSAIP */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIM, PeriphClkInit->PLLSAI.PLLSAIN , PeriphClkInit->PLLSAI.PLLSAIP, pllsaiq, 0U);
+ }
+
+ /* Enable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_ENABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is ready */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() == RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Get the RCC_PeriphCLKInitTypeDef according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S_APB1 | RCC_PERIPHCLK_I2S_APB2 |\
+ RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_SAI2 |\
+ RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC |\
+ RCC_PERIPHCLK_CEC | RCC_PERIPHCLK_FMPI2C1 |\
+ RCC_PERIPHCLK_CLK48 | RCC_PERIPHCLK_SDIO |\
+ RCC_PERIPHCLK_SPDIFRX;
+
+ /* Get the PLLI2S Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLI2S.PLLI2SM = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM) >> RCC_PLLI2SCFGR_PLLI2SM_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> RCC_PLLI2SCFGR_PLLI2SN_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SP = (uint32_t)((((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> RCC_PLLI2SCFGR_PLLI2SP_Pos) + 1U) << 1U);
+ PeriphClkInit->PLLI2S.PLLI2SQ = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ /* Get the PLLSAI Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLSAI.PLLSAIM = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIM) >> RCC_PLLSAICFGR_PLLSAIM_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIN = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> RCC_PLLSAICFGR_PLLSAIN_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIP = (uint32_t)((((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> RCC_PLLSAICFGR_PLLSAIP_Pos) + 1U) << 1U);
+ PeriphClkInit->PLLSAI.PLLSAIQ = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* Get the PLLSAI/PLLI2S division factors ----------------------------------*/
+ PeriphClkInit->PLLI2SDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) >> RCC_DCKCFGR_PLLI2SDIVQ_Pos);
+ PeriphClkInit->PLLSAIDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> RCC_DCKCFGR_PLLSAIDIVQ_Pos);
+
+ /* Get the SAI1 clock configuration ----------------------------------------*/
+ PeriphClkInit->Sai1ClockSelection = __HAL_RCC_GET_SAI1_SOURCE();
+
+ /* Get the SAI2 clock configuration ----------------------------------------*/
+ PeriphClkInit->Sai2ClockSelection = __HAL_RCC_GET_SAI2_SOURCE();
+
+ /* Get the I2S APB1 clock configuration ------------------------------------*/
+ PeriphClkInit->I2sApb1ClockSelection = __HAL_RCC_GET_I2S_APB1_SOURCE();
+
+ /* Get the I2S APB2 clock configuration ------------------------------------*/
+ PeriphClkInit->I2sApb2ClockSelection = __HAL_RCC_GET_I2S_APB2_SOURCE();
+
+ /* Get the RTC Clock configuration -----------------------------------------*/
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+ /* Get the CEC clock configuration -----------------------------------------*/
+ PeriphClkInit->CecClockSelection = __HAL_RCC_GET_CEC_SOURCE();
+
+ /* Get the FMPI2C1 clock configuration -------------------------------------*/
+ PeriphClkInit->Fmpi2c1ClockSelection = __HAL_RCC_GET_FMPI2C1_SOURCE();
+
+ /* Get the CLK48 clock configuration ----------------------------------------*/
+ PeriphClkInit->Clk48ClockSelection = __HAL_RCC_GET_CLK48_SOURCE();
+
+ /* Get the SDIO clock configuration ----------------------------------------*/
+ PeriphClkInit->SdioClockSelection = __HAL_RCC_GET_SDIO_SOURCE();
+
+ /* Get the SPDIFRX clock configuration -------------------------------------*/
+ PeriphClkInit->SpdifClockSelection = __HAL_RCC_GET_SPDIFRX_SOURCE();
+
+ /* Get the TIM Prescaler configuration -------------------------------------*/
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+}
+
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(SAI..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_SAI1: SAI1 peripheral clock
+ * @arg RCC_PERIPHCLK_SAI2: SAI2 peripheral clock
+ * @arg RCC_PERIPHCLK_I2S_APB1: I2S APB1 peripheral clock
+ * @arg RCC_PERIPHCLK_I2S_APB2: I2S APB2 peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ uint32_t tmpreg1 = 0U;
+ /* This variable used to store the SAI clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ /* This variable used to store the SAI clock source */
+ uint32_t saiclocksource = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_SAI1:
+ case RCC_PERIPHCLK_SAI2:
+ {
+ saiclocksource = RCC->DCKCFGR;
+ saiclocksource &= (RCC_DCKCFGR_SAI1SRC | RCC_DCKCFGR_SAI2SRC);
+ switch (saiclocksource)
+ {
+ case 0U: /* PLLSAI is the clock source for SAI*/
+ {
+ /* Configure the PLLSAI division factor */
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLSAIM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
+ {
+ /* In Case the PLL Source is HSI (Internal Clock) */
+ vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIM));
+ }
+ else
+ {
+ /* In Case the PLL Source is HSE (External Clock) */
+ vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIM)));
+ }
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
+ tmpreg1 = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24U;
+ frequency = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6U))/(tmpreg1);
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
+ tmpreg1 = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8U) + 1U);
+ frequency = frequency/(tmpreg1);
+ break;
+ }
+ case RCC_DCKCFGR_SAI1SRC_0: /* PLLI2S is the clock source for SAI*/
+ case RCC_DCKCFGR_SAI2SRC_0: /* PLLI2S is the clock source for SAI*/
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
+ {
+ /* In Case the PLL Source is HSI (Internal Clock) */
+ vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* In Case the PLL Source is HSE (External Clock) */
+ vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM)));
+ }
+
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
+ tmpreg1 = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24U;
+ frequency = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg1);
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
+ tmpreg1 = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1U);
+ frequency = frequency/(tmpreg1);
+ break;
+ }
+ case RCC_DCKCFGR_SAI1SRC_1: /* PLLR is the clock source for SAI*/
+ case RCC_DCKCFGR_SAI2SRC_1: /* PLLR is the clock source for SAI*/
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
+ {
+ /* In Case the PLL Source is HSI (Internal Clock) */
+ vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* In Case the PLL Source is HSE (External Clock) */
+ vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ /* SAI_CLK_x = PLL_VCO Output/PLLR */
+ tmpreg1 = (RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U;
+ frequency = (vcoinput * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U))/(tmpreg1);
+ break;
+ }
+ case RCC_DCKCFGR_SAI1SRC: /* External clock is the clock source for SAI*/
+ {
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ case RCC_DCKCFGR_SAI2SRC: /* PLLSRC(HSE or HSI) is the clock source for SAI*/
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
+ {
+ /* In Case the PLL Source is HSI (Internal Clock) */
+ frequency = (uint32_t)(HSI_VALUE);
+ }
+ else
+ {
+ /* In Case the PLL Source is HSE (External Clock) */
+ frequency = (uint32_t)(HSE_VALUE);
+ }
+ break;
+ }
+ default :
+ {
+ break;
+ }
+ }
+ break;
+ }
+ case RCC_PERIPHCLK_I2S_APB1:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_APB1_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLI2S:
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is PLL VCO Output divided by PLLR used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLR:
+ {
+ /* Configure the PLL division factor R */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U) & (RCC_PLLCFGR_PLLN >> 6U)));
+ /* I2S_CLK = PLL_VCO Output/PLLR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U) & (RCC_PLLCFGR_PLLR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is HSI or HSE depending from PLL source Clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLSRC:
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ frequency = HSE_VALUE;
+ }
+ else
+ {
+ frequency = HSI_VALUE;
+ }
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ case RCC_PERIPHCLK_I2S_APB2:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_APB2_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLI2S:
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is PLL VCO Output divided by PLLR used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLR:
+ {
+ /* Configure the PLL division factor R */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U) & (RCC_PLLCFGR_PLLN >> 6U)));
+ /* I2S_CLK = PLL_VCO Output/PLLR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U) & (RCC_PLLCFGR_PLLR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is HSI or HSE depending from PLL source Clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLSRC:
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ frequency = HSE_VALUE;
+ }
+ else
+ {
+ frequency = HSI_VALUE;
+ }
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F446xx */
+
+#if defined(STM32F469xx) || defined(STM32F479xx)
+/**
+ * @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(I2S, SAI, LTDC, RTC and TIM).
+ *
+ * @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) and RCC_BDCR register are set to their reset values.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+ uint32_t pllsaip = 0U;
+ uint32_t pllsaiq = 0U;
+ uint32_t pllsair = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*--------------------------- CLK48 Configuration --------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_CLK48CLKSOURCE(PeriphClkInit->Clk48ClockSelection));
+
+ /* Configure the CLK48 clock source */
+ __HAL_RCC_CLK48_CONFIG(PeriphClkInit->Clk48ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------ SDIO Configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDIO) == RCC_PERIPHCLK_SDIO)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SDIOCLKSOURCE(PeriphClkInit->SdioClockSelection));
+
+ /* Configure the SDIO clock source */
+ __HAL_RCC_SDIO_CONFIG(PeriphClkInit->SdioClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------- SAI/I2S Configuration (PLLI2S) -------------------*/
+ /*------------------- Common configuration SAI/I2S -------------------------*/
+ /* In Case of SAI or I2S Clock Configuration through PLLI2S, PLLI2SN division
+ factor is common parameters for both peripherals */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLI2S) == RCC_PERIPHCLK_SAI_PLLI2S) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN));
+
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLI2S is disabled */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /*---------------------- I2S configuration -------------------------------*/
+ /* In Case of I2S Clock Configuration through PLLI2S, PLLI2SR must be added
+ only for I2S configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == (RCC_PERIPHCLK_I2S))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) x (PLLI2SN/PLLM) */
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /*---------------------------- SAI configuration -------------------------*/
+ /* In Case of SAI Clock Configuration through PLLI2S, PLLI2SQ and PLLI2S_DIVQ must
+ be added only for SAI configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLI2S) == (RCC_PERIPHCLK_SAI_PLLI2S))
+ {
+ /* Check the PLLI2S division factors */
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+ assert_param(IS_RCC_PLLI2S_DIVQ_VALUE(PeriphClkInit->PLLI2SDivQ));
+
+ /* Read PLLI2SR value from PLLI2SCFGR register (this value is not need for SAI configuration) */
+ tmpreg1 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
+ __HAL_RCC_PLLI2S_SAICLK_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SQ , tmpreg1);
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
+ __HAL_RCC_PLLI2S_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLI2SDivQ);
+ }
+
+ /*----------------- In Case of PLLI2S is just selected -----------------*/
+ if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S)
+ {
+ /* Check for Parameters */
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+
+ /* Configure the PLLI2S multiplication and division factors */
+ __HAL_RCC_PLLI2S_SAICLK_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN, PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+ /* Get 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 in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------- SAI/LTDC Configuration (PLLSAI) ------------------*/
+ /*----------------------- Common configuration SAI/LTDC --------------------*/
+ /* In Case of SAI, LTDC or CLK48 Clock Configuration through PLLSAI, PLLSAIN division
+ factor is common parameters for these peripherals */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLSAI) == RCC_PERIPHCLK_SAI_PLLSAI) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == RCC_PERIPHCLK_LTDC) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48) &&
+ (PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLSAIP)))
+ {
+ /* Check the PLLSAI division factors */
+ assert_param(IS_RCC_PLLSAIN_VALUE(PeriphClkInit->PLLSAI.PLLSAIN));
+
+ /* Disable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is disabled */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /*---------------------------- SAI configuration -------------------------*/
+ /* In Case of SAI Clock Configuration through PLLSAI, PLLSAIQ and PLLSAI_DIVQ must
+ be added only for SAI configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLSAI) == (RCC_PERIPHCLK_SAI_PLLSAI))
+ {
+ assert_param(IS_RCC_PLLSAIQ_VALUE(PeriphClkInit->PLLSAI.PLLSAIQ));
+ assert_param(IS_RCC_PLLSAI_DIVQ_VALUE(PeriphClkInit->PLLSAIDivQ));
+
+ /* Read PLLSAIP value from PLLSAICFGR register (this value is not needed for SAI configuration) */
+ pllsaip = ((((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> RCC_PLLSAICFGR_PLLSAIP_Pos) + 1U) << 1U);
+ /* Read PLLSAIR value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ pllsair = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> RCC_PLLSAICFGR_PLLSAIR_Pos);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN, pllsaip, PeriphClkInit->PLLSAI.PLLSAIQ, pllsair);
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
+ __HAL_RCC_PLLSAI_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLSAIDivQ);
+ }
+
+ /*---------------------------- LTDC configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == (RCC_PERIPHCLK_LTDC))
+ {
+ assert_param(IS_RCC_PLLSAIR_VALUE(PeriphClkInit->PLLSAI.PLLSAIR));
+ assert_param(IS_RCC_PLLSAI_DIVR_VALUE(PeriphClkInit->PLLSAIDivR));
+
+ /* Read PLLSAIP value from PLLSAICFGR register (this value is not needed for SAI configuration) */
+ pllsaip = ((((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> RCC_PLLSAICFGR_PLLSAIP_Pos) + 1U) << 1U);
+ /* Read PLLSAIQ value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ pllsaiq = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* LTDC_CLK(first level) = PLLSAI_VCO Output/PLLSAIR */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN, pllsaip, pllsaiq, PeriphClkInit->PLLSAI.PLLSAIR);
+ /* LTDC_CLK = LTDC_CLK(first level)/PLLSAIDIVR */
+ __HAL_RCC_PLLSAI_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLSAIDivR);
+ }
+
+ /*---------------------------- CLK48 configuration ------------------------*/
+ /* Configure the PLLSAI when it is used as clock source for CLK48 */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == (RCC_PERIPHCLK_CLK48)) &&
+ (PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLSAIP))
+ {
+ assert_param(IS_RCC_PLLSAIP_VALUE(PeriphClkInit->PLLSAI.PLLSAIP));
+
+ /* Read PLLSAIQ value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ pllsaiq = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* Read PLLSAIR value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ pllsair = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> RCC_PLLSAICFGR_PLLSAIR_Pos);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* CLK48_CLK(first level) = PLLSAI_VCO Output/PLLSAIP */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN, PeriphClkInit->PLLSAI.PLLSAIP, pllsaiq, pllsair);
+ }
+
+ /* Enable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_ENABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is ready */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() == RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- TIM configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Configures the RCC_PeriphCLKInitTypeDef according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S | RCC_PERIPHCLK_SAI_PLLSAI |\
+ RCC_PERIPHCLK_SAI_PLLI2S | RCC_PERIPHCLK_LTDC |\
+ RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC |\
+ RCC_PERIPHCLK_CLK48 | RCC_PERIPHCLK_SDIO;
+
+ /* Get the PLLI2S Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> RCC_PLLI2SCFGR_PLLI2SN_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SQ = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ /* Get the PLLSAI Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLSAI.PLLSAIN = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> RCC_PLLSAICFGR_PLLSAIN_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIR = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> RCC_PLLSAICFGR_PLLSAIR_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIQ = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* Get the PLLSAI/PLLI2S division factors ----------------------------------*/
+ PeriphClkInit->PLLI2SDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) >> RCC_DCKCFGR_PLLI2SDIVQ_Pos);
+ PeriphClkInit->PLLSAIDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> RCC_DCKCFGR_PLLSAIDIVQ_Pos);
+ PeriphClkInit->PLLSAIDivR = (uint32_t)(RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVR);
+ /* Get the RTC Clock configuration -----------------------------------------*/
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+ /* Get the CLK48 clock configuration -------------------------------------*/
+ PeriphClkInit->Clk48ClockSelection = __HAL_RCC_GET_CLK48_SOURCE();
+
+ /* Get the SDIO clock configuration ----------------------------------------*/
+ PeriphClkInit->SdioClockSelection = __HAL_RCC_GET_SDIO_SOURCE();
+
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+}
+
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(SAI..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_I2S: I2S peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ /* This variable used to store the I2S clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_I2S:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SCLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SCLKSOURCE_PLLI2S:
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F469xx || STM32F479xx */
+
+#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
+/**
+ * @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(I2S, LTDC RTC and TIM).
+ *
+ * @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) and RCC_BDCR register are set to their reset values.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ uint32_t plli2sq = 0U;
+#endif /* STM32F413xx || STM32F423xx */
+ uint32_t plli2sused = 0U;
+
+ /* Check the peripheral clock selection parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*----------------------------------- I2S APB1 configuration ---------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB1) == (RCC_PERIPHCLK_I2S_APB1))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2SAPB1CLKSOURCE(PeriphClkInit->I2sApb1ClockSelection));
+
+ /* Configure I2S Clock source */
+ __HAL_RCC_I2S_APB1_CONFIG(PeriphClkInit->I2sApb1ClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for I2S */
+ if(PeriphClkInit->I2sApb1ClockSelection == RCC_I2SAPB1CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------------------- I2S APB2 configuration ---------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB2) == (RCC_PERIPHCLK_I2S_APB2))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2SAPB2CLKSOURCE(PeriphClkInit->I2sApb2ClockSelection));
+
+ /* Configure I2S Clock source */
+ __HAL_RCC_I2S_APB2_CONFIG(PeriphClkInit->I2sApb2ClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for I2S */
+ if(PeriphClkInit->I2sApb2ClockSelection == RCC_I2SAPB2CLKSOURCE_PLLI2S)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ /*----------------------- SAI1 Block A configuration -----------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAIA) == (RCC_PERIPHCLK_SAIA))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SAIACLKSOURCE(PeriphClkInit->SaiAClockSelection));
+
+ /* Configure SAI1 Clock source */
+ __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(PeriphClkInit->SaiAClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for SAI */
+ if(PeriphClkInit->SaiAClockSelection == RCC_SAIACLKSOURCE_PLLI2SR)
+ {
+ plli2sused = 1U;
+ }
+ /* Enable the PLLSAI when it's used as clock source for SAI */
+ if(PeriphClkInit->SaiAClockSelection == RCC_SAIACLKSOURCE_PLLR)
+ {
+ /* Check for PLL/DIVR parameters */
+ assert_param(IS_RCC_PLL_DIVR_VALUE(PeriphClkInit->PLLDivR));
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLDIVR */
+ __HAL_RCC_PLL_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLDivR);
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------- SAI1 Block B configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAIB) == (RCC_PERIPHCLK_SAIB))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SAIBCLKSOURCE(PeriphClkInit->SaiBClockSelection));
+
+ /* Configure SAI1 Clock source */
+ __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG(PeriphClkInit->SaiBClockSelection);
+ /* Enable the PLLI2S when it's used as clock source for SAI */
+ if(PeriphClkInit->SaiBClockSelection == RCC_SAIBCLKSOURCE_PLLI2SR)
+ {
+ plli2sused = 1U;
+ }
+ /* Enable the PLLSAI when it's used as clock source for SAI */
+ if(PeriphClkInit->SaiBClockSelection == RCC_SAIBCLKSOURCE_PLLR)
+ {
+ /* Check for PLL/DIVR parameters */
+ assert_param(IS_RCC_PLL_DIVR_VALUE(PeriphClkInit->PLLDivR));
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLDIVR */
+ __HAL_RCC_PLL_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLDivR);
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+#endif /* STM32F413xx || STM32F423xx */
+
+ /*------------------------------------ RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------------ TIM configuration -------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ /* Configure Timer Prescaler */
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------------- FMPI2C1 Configuration --------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_FMPI2C1) == RCC_PERIPHCLK_FMPI2C1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_FMPI2C1CLKSOURCE(PeriphClkInit->Fmpi2c1ClockSelection));
+
+ /* Configure the FMPI2C1 clock source */
+ __HAL_RCC_FMPI2C1_CONFIG(PeriphClkInit->Fmpi2c1ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------------- CLK48 Configuration ----------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_CLK48CLKSOURCE(PeriphClkInit->Clk48ClockSelection));
+
+ /* Configure the SDIO clock source */
+ __HAL_RCC_CLK48_CONFIG(PeriphClkInit->Clk48ClockSelection);
+
+ /* Enable the PLLI2S when it's used as clock source for CLK48 */
+ if(PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLI2SQ)
+ {
+ plli2sused = 1U;
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*------------------------------------- SDIO Configuration -----------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDIO) == RCC_PERIPHCLK_SDIO)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_SDIOCLKSOURCE(PeriphClkInit->SdioClockSelection));
+
+ /* Configure the SDIO clock source */
+ __HAL_RCC_SDIO_CONFIG(PeriphClkInit->SdioClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*-------------------------------------- PLLI2S Configuration --------------*/
+ /* PLLI2S is configured when a peripheral will use it as source clock : I2S on APB1 or
+ I2S on APB2*/
+ if((plli2sused == 1U) || (PeriphClkInit->PeriphClockSelection == RCC_PERIPHCLK_PLLI2S))
+ {
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLI2S is disabled */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* check for common PLLI2S Parameters */
+ assert_param(IS_RCC_PLLI2SCLKSOURCE(PeriphClkInit->PLLI2SSelection));
+ assert_param(IS_RCC_PLLI2SM_VALUE(PeriphClkInit->PLLI2S.PLLI2SM));
+ assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN));
+ /*-------------------- Set the PLL I2S clock -----------------------------*/
+ __HAL_RCC_PLL_I2S_CONFIG(PeriphClkInit->PLLI2SSelection);
+
+ /*------- In Case of PLLI2S is selected as source clock for I2S ----------*/
+ if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB1) == RCC_PERIPHCLK_I2S_APB1) && (PeriphClkInit->I2sApb1ClockSelection == RCC_I2SAPB1CLKSOURCE_PLLI2S)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S_APB2) == RCC_PERIPHCLK_I2S_APB2) && (PeriphClkInit->I2sApb2ClockSelection == RCC_I2SAPB2CLKSOURCE_PLLI2S)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48) && (PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLI2SQ)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDIO) == RCC_PERIPHCLK_SDIO) && (PeriphClkInit->SdioClockSelection == RCC_SDIOCLKSOURCE_CLK48) && (PeriphClkInit->Clk48ClockSelection == RCC_CLK48CLKSOURCE_PLLI2SQ)))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM)*/
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ /*------- In Case of PLLI2S is selected as source clock for SAI ----------*/
+ if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAIA) == RCC_PERIPHCLK_SAIA) && (PeriphClkInit->SaiAClockSelection == RCC_SAIACLKSOURCE_PLLI2SR)) ||
+ ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAIB) == RCC_PERIPHCLK_SAIB) && (PeriphClkInit->SaiBClockSelection == RCC_SAIBCLKSOURCE_PLLI2SR)))
+ {
+ /* Check for PLLI2S Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ /* Check for PLLI2S/DIVR parameters */
+ assert_param(IS_RCC_PLLI2S_DIVR_VALUE(PeriphClkInit->PLLI2SDivR));
+
+ /* Read PLLI2SQ value from PLLI2SCFGR register (this value is not needed for SAI configuration) */
+ plli2sq = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN, plli2sq, PeriphClkInit->PLLI2S.PLLI2SR);
+
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVR */
+ __HAL_RCC_PLLI2S_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLI2SDivR);
+ }
+#endif /* STM32F413xx || STM32F423xx */
+
+ /*----------------- In Case of PLLI2S is just selected ------------------*/
+ if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S)
+ {
+ /* Check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM)*/
+ /* SPDIFRXCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SP */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+ /* Get 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 in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*-------------------- DFSDM1 clock source configuration -------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_DFSDM1) == RCC_PERIPHCLK_DFSDM1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_DFSDM1CLKSOURCE(PeriphClkInit->Dfsdm1ClockSelection));
+
+ /* Configure the DFSDM1 interface clock source */
+ __HAL_RCC_DFSDM1_CONFIG(PeriphClkInit->Dfsdm1ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*-------------------- DFSDM1 Audio clock source configuration -------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_DFSDM1_AUDIO) == RCC_PERIPHCLK_DFSDM1_AUDIO)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_DFSDM1AUDIOCLKSOURCE(PeriphClkInit->Dfsdm1AudioClockSelection));
+
+ /* Configure the DFSDM1 Audio interface clock source */
+ __HAL_RCC_DFSDM1AUDIO_CONFIG(PeriphClkInit->Dfsdm1AudioClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ /*-------------------- DFSDM2 clock source configuration -------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_DFSDM2) == RCC_PERIPHCLK_DFSDM2)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_DFSDM2CLKSOURCE(PeriphClkInit->Dfsdm2ClockSelection));
+
+ /* Configure the DFSDM1 interface clock source */
+ __HAL_RCC_DFSDM2_CONFIG(PeriphClkInit->Dfsdm2ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*-------------------- DFSDM2 Audio clock source configuration -------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_DFSDM2_AUDIO) == RCC_PERIPHCLK_DFSDM2_AUDIO)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_DFSDM2AUDIOCLKSOURCE(PeriphClkInit->Dfsdm2AudioClockSelection));
+
+ /* Configure the DFSDM1 Audio interface clock source */
+ __HAL_RCC_DFSDM2AUDIO_CONFIG(PeriphClkInit->Dfsdm2AudioClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- LPTIM1 Configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPTIM1) == RCC_PERIPHCLK_LPTIM1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_LPTIM1CLKSOURCE(PeriphClkInit->Lptim1ClockSelection));
+
+ /* Configure the LPTIM1 clock source */
+ __HAL_RCC_LPTIM1_CONFIG(PeriphClkInit->Lptim1ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+#endif /* STM32F413xx || STM32F423xx */
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get the RCC_PeriphCLKInitTypeDef according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S_APB1 | RCC_PERIPHCLK_I2S_APB2 |\
+ RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC |\
+ RCC_PERIPHCLK_FMPI2C1 | RCC_PERIPHCLK_CLK48 |\
+ RCC_PERIPHCLK_SDIO | RCC_PERIPHCLK_DFSDM1 |\
+ RCC_PERIPHCLK_DFSDM1_AUDIO | RCC_PERIPHCLK_DFSDM2 |\
+ RCC_PERIPHCLK_DFSDM2_AUDIO | RCC_PERIPHCLK_LPTIM1 |\
+ RCC_PERIPHCLK_SAIA | RCC_PERIPHCLK_SAIB;
+#else /* STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx */
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S_APB1 | RCC_PERIPHCLK_I2S_APB2 |\
+ RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC |\
+ RCC_PERIPHCLK_FMPI2C1 | RCC_PERIPHCLK_CLK48 |\
+ RCC_PERIPHCLK_SDIO | RCC_PERIPHCLK_DFSDM1 |\
+ RCC_PERIPHCLK_DFSDM1_AUDIO;
+#endif /* STM32F413xx || STM32F423xx */
+
+
+
+ /* Get the PLLI2S Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLI2S.PLLI2SM = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM) >> RCC_PLLI2SCFGR_PLLI2SM_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> RCC_PLLI2SCFGR_PLLI2SN_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SQ = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ /* Get the PLL/PLLI2S division factors -------------------------------------*/
+ PeriphClkInit->PLLI2SDivR = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVR) >> RCC_DCKCFGR_PLLI2SDIVR_Pos);
+ PeriphClkInit->PLLDivR = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLDIVR) >> RCC_DCKCFGR_PLLDIVR_Pos);
+#endif /* STM32F413xx || STM32F423xx */
+
+ /* Get the I2S APB1 clock configuration ------------------------------------*/
+ PeriphClkInit->I2sApb1ClockSelection = __HAL_RCC_GET_I2S_APB1_SOURCE();
+
+ /* Get the I2S APB2 clock configuration ------------------------------------*/
+ PeriphClkInit->I2sApb2ClockSelection = __HAL_RCC_GET_I2S_APB2_SOURCE();
+
+ /* Get the RTC Clock configuration -----------------------------------------*/
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+ /* Get the FMPI2C1 clock configuration -------------------------------------*/
+ PeriphClkInit->Fmpi2c1ClockSelection = __HAL_RCC_GET_FMPI2C1_SOURCE();
+
+ /* Get the CLK48 clock configuration ---------------------------------------*/
+ PeriphClkInit->Clk48ClockSelection = __HAL_RCC_GET_CLK48_SOURCE();
+
+ /* Get the SDIO clock configuration ----------------------------------------*/
+ PeriphClkInit->SdioClockSelection = __HAL_RCC_GET_SDIO_SOURCE();
+
+ /* Get the DFSDM1 clock configuration --------------------------------------*/
+ PeriphClkInit->Dfsdm1ClockSelection = __HAL_RCC_GET_DFSDM1_SOURCE();
+
+ /* Get the DFSDM1 Audio clock configuration --------------------------------*/
+ PeriphClkInit->Dfsdm1AudioClockSelection = __HAL_RCC_GET_DFSDM1AUDIO_SOURCE();
+
+#if defined(STM32F413xx) || defined(STM32F423xx)
+ /* Get the DFSDM2 clock configuration --------------------------------------*/
+ PeriphClkInit->Dfsdm2ClockSelection = __HAL_RCC_GET_DFSDM2_SOURCE();
+
+ /* Get the DFSDM2 Audio clock configuration --------------------------------*/
+ PeriphClkInit->Dfsdm2AudioClockSelection = __HAL_RCC_GET_DFSDM2AUDIO_SOURCE();
+
+ /* Get the LPTIM1 clock configuration --------------------------------------*/
+ PeriphClkInit->Lptim1ClockSelection = __HAL_RCC_GET_LPTIM1_SOURCE();
+
+ /* Get the SAI1 Block Aclock configuration ---------------------------------*/
+ PeriphClkInit->SaiAClockSelection = __HAL_RCC_GET_SAI_BLOCKA_SOURCE();
+
+ /* Get the SAI1 Block B clock configuration --------------------------------*/
+ PeriphClkInit->SaiBClockSelection = __HAL_RCC_GET_SAI_BLOCKB_SOURCE();
+#endif /* STM32F413xx || STM32F423xx */
+
+ /* Get the TIM Prescaler configuration -------------------------------------*/
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+}
+
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(I2S..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_I2S_APB1: I2S APB1 peripheral clock
+ * @arg RCC_PERIPHCLK_I2S_APB2: I2S APB2 peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ /* This variable used to store the I2S clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_I2S_APB1:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_APB1_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLI2S:
+ {
+ if((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SSRC) == RCC_PLLI2SCFGR_PLLI2SSRC)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(EXTERNAL_CLOCK_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ }
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is PLL VCO Output divided by PLLR used as I2S clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLR:
+ {
+ /* Configure the PLL division factor R */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U) & (RCC_PLLCFGR_PLLN >> 6U)));
+ /* I2S_CLK = PLL_VCO Output/PLLR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U) & (RCC_PLLCFGR_PLLR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is HSI or HSE depending from PLL source Clock */
+ case RCC_I2SAPB1CLKSOURCE_PLLSRC:
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ frequency = HSE_VALUE;
+ }
+ else
+ {
+ frequency = HSI_VALUE;
+ }
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ case RCC_PERIPHCLK_I2S_APB2:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_APB2_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLI2S:
+ {
+ if((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SSRC) == RCC_PLLI2SCFGR_PLLI2SSRC)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(EXTERNAL_CLOCK_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ }
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is PLL VCO Output divided by PLLR used as I2S clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLR:
+ {
+ /* Configure the PLL division factor R */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U) & (RCC_PLLCFGR_PLLN >> 6U)));
+ /* I2S_CLK = PLL_VCO Output/PLLR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U) & (RCC_PLLCFGR_PLLR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is HSI or HSE depending from PLL source Clock */
+ case RCC_I2SAPB2CLKSOURCE_PLLSRC:
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ frequency = HSE_VALUE;
+ }
+ else
+ {
+ frequency = HSI_VALUE;
+ }
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx || STM32F413xx || STM32F423xx */
+
+#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx)
+/**
+ * @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(I2S and RTC clocks).
+ *
+ * @note A caution to be taken when HAL_RCCEx_PeriphCLKConfig() is used to select RTC clock selection, in this case
+ * the Reset of Backup domain will be applied in order to modify the RTC Clock source as consequence all backup
+ * domain (RTC and RCC_BDCR register expect BKPSRAM) will be reset
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*---------------------------- RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- TIM configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- FMPI2C1 Configuration -----------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_FMPI2C1) == RCC_PERIPHCLK_FMPI2C1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_FMPI2C1CLKSOURCE(PeriphClkInit->Fmpi2c1ClockSelection));
+
+ /* Configure the FMPI2C1 clock source */
+ __HAL_RCC_FMPI2C1_CONFIG(PeriphClkInit->Fmpi2c1ClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- LPTIM1 Configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPTIM1) == RCC_PERIPHCLK_LPTIM1)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_LPTIM1CLKSOURCE(PeriphClkInit->Lptim1ClockSelection));
+
+ /* Configure the LPTIM1 clock source */
+ __HAL_RCC_LPTIM1_CONFIG(PeriphClkInit->Lptim1ClockSelection);
+ }
+
+ /*---------------------------- I2S Configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2SAPBCLKSOURCE(PeriphClkInit->I2SClockSelection));
+
+ /* Configure the I2S clock source */
+ __HAL_RCC_I2S_CONFIG(PeriphClkInit->I2SClockSelection);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Configures the RCC_OscInitStruct according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_FMPI2C1 | RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC;
+
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+ /* Get the FMPI2C1 clock configuration -------------------------------------*/
+ PeriphClkInit->Fmpi2c1ClockSelection = __HAL_RCC_GET_FMPI2C1_SOURCE();
+
+ /* Get the I2S clock configuration -----------------------------------------*/
+ PeriphClkInit->I2SClockSelection = __HAL_RCC_GET_I2S_SOURCE();
+
+
+}
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(SAI..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_I2S: I2S peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ /* This variable used to store the I2S clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_I2S:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SAPBCLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLL VCO Output divided by PLLR used as I2S clock */
+ case RCC_I2SAPBCLKSOURCE_PLLR:
+ {
+ /* Configure the PLL division factor R */
+ /* PLL_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLL_VCO Output = PLL_VCO Input * PLLN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U) & (RCC_PLLCFGR_PLLN >> 6U)));
+ /* I2S_CLK = PLL_VCO Output/PLLR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U) & (RCC_PLLCFGR_PLLR >> 28U)));
+ break;
+ }
+ /* Check if I2S clock selection is HSI or HSE depending from PLL source Clock */
+ case RCC_I2SAPBCLKSOURCE_PLLSRC:
+ {
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ frequency = HSE_VALUE;
+ }
+ else
+ {
+ frequency = HSI_VALUE;
+ }
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F410Tx || STM32F410Cx || STM32F410Rx */
+
+#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
+/**
+ * @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(I2S, SAI, LTDC RTC and TIM).
+ *
+ * @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) and RCC_BDCR register are set to their reset values.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*----------------------- SAI/I2S Configuration (PLLI2S) -------------------*/
+ /*----------------------- Common configuration SAI/I2S ---------------------*/
+ /* In Case of SAI or I2S Clock Configuration through PLLI2S, PLLI2SN division
+ factor is common parameters for both peripherals */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLI2S) == RCC_PERIPHCLK_SAI_PLLI2S) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN));
+
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLI2S is disabled */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /*---------------------------- I2S configuration -------------------------*/
+ /* In Case of I2S Clock Configuration through PLLI2S, PLLI2SR must be added
+ only for I2S configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == (RCC_PERIPHCLK_I2S))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLM) */
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /*---------------------------- SAI configuration -------------------------*/
+ /* In Case of SAI Clock Configuration through PLLI2S, PLLI2SQ and PLLI2S_DIVQ must
+ be added only for SAI configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLI2S) == (RCC_PERIPHCLK_SAI_PLLI2S))
+ {
+ /* Check the PLLI2S division factors */
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+ assert_param(IS_RCC_PLLI2S_DIVQ_VALUE(PeriphClkInit->PLLI2SDivQ));
+
+ /* Read PLLI2SR value from PLLI2SCFGR register (this value is not need for SAI configuration) */
+ tmpreg1 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
+ __HAL_RCC_PLLI2S_SAICLK_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SQ , tmpreg1);
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
+ __HAL_RCC_PLLI2S_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLI2SDivQ);
+ }
+
+ /*----------------- In Case of PLLI2S is just selected -----------------*/
+ if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S)
+ {
+ /* Check for Parameters */
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ));
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+
+ /* Configure the PLLI2S multiplication and division factors */
+ __HAL_RCC_PLLI2S_SAICLK_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN, PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR);
+ }
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+ /* Get 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 in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*----------------------- SAI/LTDC Configuration (PLLSAI) ------------------*/
+ /*----------------------- Common configuration SAI/LTDC --------------------*/
+ /* In Case of SAI or LTDC Clock Configuration through PLLSAI, PLLSAIN division
+ factor is common parameters for both peripherals */
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLSAI) == RCC_PERIPHCLK_SAI_PLLSAI) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == RCC_PERIPHCLK_LTDC))
+ {
+ /* Check the PLLSAI division factors */
+ assert_param(IS_RCC_PLLSAIN_VALUE(PeriphClkInit->PLLSAI.PLLSAIN));
+
+ /* Disable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is disabled */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /*---------------------------- SAI configuration -------------------------*/
+ /* In Case of SAI Clock Configuration through PLLSAI, PLLSAIQ and PLLSAI_DIVQ must
+ be added only for SAI configuration */
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI_PLLSAI) == (RCC_PERIPHCLK_SAI_PLLSAI))
+ {
+ assert_param(IS_RCC_PLLSAIQ_VALUE(PeriphClkInit->PLLSAI.PLLSAIQ));
+ assert_param(IS_RCC_PLLSAI_DIVQ_VALUE(PeriphClkInit->PLLSAIDivQ));
+
+ /* Read PLLSAIR value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ tmpreg1 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> RCC_PLLSAICFGR_PLLSAIR_Pos);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN , PeriphClkInit->PLLSAI.PLLSAIQ, tmpreg1);
+ /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
+ __HAL_RCC_PLLSAI_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLSAIDivQ);
+ }
+
+ /*---------------------------- LTDC configuration ------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == (RCC_PERIPHCLK_LTDC))
+ {
+ assert_param(IS_RCC_PLLSAIR_VALUE(PeriphClkInit->PLLSAI.PLLSAIR));
+ assert_param(IS_RCC_PLLSAI_DIVR_VALUE(PeriphClkInit->PLLSAIDivR));
+
+ /* Read PLLSAIR value from PLLSAICFGR register (this value is not need for SAI configuration) */
+ tmpreg1 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
+ /* LTDC_CLK(first level) = PLLSAI_VCO Output/PLLSAIR */
+ __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN , tmpreg1, PeriphClkInit->PLLSAI.PLLSAIR);
+ /* LTDC_CLK = LTDC_CLK(first level)/PLLSAIDIVR */
+ __HAL_RCC_PLLSAI_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLSAIDivR);
+ }
+ /* Enable PLLSAI Clock */
+ __HAL_RCC_PLLSAI_ENABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLSAI is ready */
+ while(__HAL_RCC_PLLSAI_GET_FLAG() == RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+ /*--------------------------------------------------------------------------*/
+
+ /*---------------------------- TIM configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Configures the PeriphClkInit according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S | RCC_PERIPHCLK_SAI_PLLSAI | RCC_PERIPHCLK_SAI_PLLI2S | RCC_PERIPHCLK_LTDC | RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC;
+
+ /* Get the PLLI2S Clock configuration -----------------------------------------------*/
+ PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> RCC_PLLI2SCFGR_PLLI2SN_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SQ = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> RCC_PLLI2SCFGR_PLLI2SQ_Pos);
+ /* Get the PLLSAI Clock configuration -----------------------------------------------*/
+ PeriphClkInit->PLLSAI.PLLSAIN = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> RCC_PLLSAICFGR_PLLSAIN_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIR = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> RCC_PLLSAICFGR_PLLSAIR_Pos);
+ PeriphClkInit->PLLSAI.PLLSAIQ = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> RCC_PLLSAICFGR_PLLSAIQ_Pos);
+ /* Get the PLLSAI/PLLI2S division factors -----------------------------------------------*/
+ PeriphClkInit->PLLI2SDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) >> RCC_DCKCFGR_PLLI2SDIVQ_Pos);
+ PeriphClkInit->PLLSAIDivQ = (uint32_t)((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> RCC_DCKCFGR_PLLSAIDIVQ_Pos);
+ PeriphClkInit->PLLSAIDivR = (uint32_t)(RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVR);
+ /* Get the RTC Clock configuration -----------------------------------------------*/
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+}
+
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(SAI..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_I2S: I2S peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ /* This variable used to store the I2S clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_I2S:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SCLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SCLKSOURCE_PLLI2S:
+ {
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
+
+#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx) ||\
+ defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE)
+/**
+ * @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(I2S and RTC clocks).
+ *
+ * @note A caution to be taken when HAL_RCCEx_PeriphCLKConfig() is used to select RTC clock selection, in this case
+ * the Reset of Backup domain will be applied in order to modify the RTC Clock source as consequence all backup
+ * domain (RTC and RCC_BDCR register expect BKPSRAM) will be reset
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U;
+ uint32_t tmpreg1 = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*---------------------------- I2S configuration ---------------------------*/
+ if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S) ||
+ (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S))
+ {
+ /* check for Parameters */
+ assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR));
+ assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN));
+#if defined(STM32F411xE)
+ assert_param(IS_RCC_PLLI2SM_VALUE(PeriphClkInit->PLLI2S.PLLI2SM));
+#endif /* STM32F411xE */
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+ /* Get tick */
+ tickstart = HAL_GetTick();
+ /* Wait till PLLI2S is disabled */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+#if defined(STM32F411xE)
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_I2SCLK_CONFIG(PeriphClkInit->PLLI2S.PLLI2SM, PeriphClkInit->PLLI2S.PLLI2SN, PeriphClkInit->PLLI2S.PLLI2SR);
+#else
+ /* Configure the PLLI2S division factors */
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLM) */
+ /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SR);
+#endif /* STM32F411xE */
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+ /* Get 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 in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /*---------------------------- RTC 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 */
+ PWR->CR |= PWR_CR_DBP;
+
+ /* Get tick */
+ 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 */
+ tmpreg1 = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if((tmpreg1 != 0x00000000U) && ((tmpreg1) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ tmpreg1 = (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 = tmpreg1;
+
+ /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */
+ if(HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSEON))
+ {
+ /* Get 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;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+ }
+#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE)
+ /*---------------------------- TIM configuration ---------------------------*/
+ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM))
+ {
+ __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection);
+ }
+#endif /* STM32F401xC || STM32F401xE || STM32F411xE */
+ return HAL_OK;
+}
+
+/**
+ * @brief Configures the RCC_OscInitStruct according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tempreg;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S | RCC_PERIPHCLK_RTC;
+
+ /* Get the PLLI2S Clock configuration --------------------------------------*/
+ PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> RCC_PLLI2SCFGR_PLLI2SN_Pos);
+ PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> RCC_PLLI2SCFGR_PLLI2SR_Pos);
+#if defined(STM32F411xE)
+ PeriphClkInit->PLLI2S.PLLI2SM = (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM);
+#endif /* STM32F411xE */
+ /* Get the RTC Clock configuration -----------------------------------------*/
+ tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE);
+ PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL));
+
+#if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE)
+ /* Get the TIM Prescaler configuration -------------------------------------*/
+ if ((RCC->DCKCFGR & RCC_DCKCFGR_TIMPRE) == RESET)
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED;
+ }
+ else
+ {
+ PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED;
+ }
+#endif /* STM32F401xC || STM32F401xE || STM32F411xE */
+}
+
+/**
+ * @brief Return the peripheral clock frequency for a given peripheral(SAI..)
+ * @note Return 0 if peripheral clock identifier not managed by this API
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg RCC_PERIPHCLK_I2S: I2S peripheral clock
+ * @retval Frequency in KHz
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+ /* This variable used to store the I2S clock frequency (value in Hz) */
+ uint32_t frequency = 0U;
+ /* This variable used to store the VCO Input (value in Hz) */
+ uint32_t vcoinput = 0U;
+ uint32_t srcclk = 0U;
+ /* This variable used to store the VCO Output (value in Hz) */
+ uint32_t vcooutput = 0U;
+ switch (PeriphClk)
+ {
+ case RCC_PERIPHCLK_I2S:
+ {
+ /* Get the current I2S source */
+ srcclk = __HAL_RCC_GET_I2S_SOURCE();
+ switch (srcclk)
+ {
+ /* Check if I2S clock selection is External clock mapped on the I2S_CKIN pin used as I2S clock */
+ case RCC_I2SCLKSOURCE_EXT:
+ {
+ /* Set the I2S clock to the external clock value */
+ frequency = EXTERNAL_CLOCK_VALUE;
+ break;
+ }
+ /* Check if I2S clock selection is PLLI2S VCO output clock divided by PLLI2SR used as I2S clock */
+ case RCC_I2SCLKSOURCE_PLLI2S:
+ {
+#if defined(STM32F411xE)
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLI2SM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SM));
+ }
+#else
+ /* Configure the PLLI2S division factor */
+ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
+ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE)
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+ else
+ {
+ /* Get the I2S source clock value */
+ vcoinput = (uint32_t)(HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
+ }
+#endif /* STM32F411xE */
+ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
+ vcooutput = (uint32_t)(vcoinput * (((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U) & (RCC_PLLI2SCFGR_PLLI2SN >> 6U)));
+ /* I2S_CLK = PLLI2S_VCO Output/PLLI2SR */
+ frequency = (uint32_t)(vcooutput /(((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U) & (RCC_PLLI2SCFGR_PLLI2SR >> 28U)));
+ break;
+ }
+ /* Clock not enabled for I2S*/
+ default:
+ {
+ frequency = 0U;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ return frequency;
+}
+#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F401xC || STM32F401xE || STM32F411xE */
+
+#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F411xE) || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) ||\
+ defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
+/**
+ * @brief Select LSE mode
+ *
+ * @note This mode is only available for STM32F410xx/STM32F411xx/STM32F446xx/STM32F469xx/STM32F479xx/STM32F412Zx/STM32F412Vx/STM32F412Rx/STM32F412Cx devices.
+ *
+ * @param Mode specifies the LSE mode.
+ * This parameter can be one of the following values:
+ * @arg RCC_LSE_LOWPOWER_MODE: LSE oscillator in low power mode selection
+ * @arg RCC_LSE_HIGHDRIVE_MODE: LSE oscillator in High Drive mode selection
+ * @retval None
+ */
+void HAL_RCCEx_SelectLSEMode(uint8_t Mode)
+{
+ /* Check the parameters */
+ assert_param(IS_RCC_LSE_MODE(Mode));
+ if(Mode == RCC_LSE_HIGHDRIVE_MODE)
+ {
+ SET_BIT(RCC->BDCR, RCC_BDCR_LSEMOD);
+ }
+ else
+ {
+ CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSEMOD);
+ }
+}
+
+#endif /* STM32F410xx || STM32F411xE || STM32F446xx || STM32F469xx || STM32F479xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx || STM32F413xx || STM32F423xx */
+
+/** @defgroup RCCEx_Exported_Functions_Group2 Extended Clock management functions
+ * @brief Extended Clock management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended clock management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the
+ activation or deactivation of PLLI2S, PLLSAI.
+@endverbatim
+ * @{
+ */
+
+#if defined(RCC_PLLI2S_SUPPORT)
+/**
+ * @brief Enable PLLI2S.
+ * @param PLLI2SInit pointer to an RCC_PLLI2SInitTypeDef structure that
+ * contains the configuration information for the PLLI2S
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLLI2S(RCC_PLLI2SInitTypeDef *PLLI2SInit)
+{
+ uint32_t tickstart;
+
+ /* Check for parameters */
+ assert_param(IS_RCC_PLLI2SN_VALUE(PLLI2SInit->PLLI2SN));
+ assert_param(IS_RCC_PLLI2SR_VALUE(PLLI2SInit->PLLI2SR));
+#if defined(RCC_PLLI2SCFGR_PLLI2SM)
+ assert_param(IS_RCC_PLLI2SM_VALUE(PLLI2SInit->PLLI2SM));
+#endif /* RCC_PLLI2SCFGR_PLLI2SM */
+#if defined(RCC_PLLI2SCFGR_PLLI2SP)
+ assert_param(IS_RCC_PLLI2SP_VALUE(PLLI2SInit->PLLI2SP));
+#endif /* RCC_PLLI2SCFGR_PLLI2SP */
+#if defined(RCC_PLLI2SCFGR_PLLI2SQ)
+ assert_param(IS_RCC_PLLI2SQ_VALUE(PLLI2SInit->PLLI2SQ));
+#endif /* RCC_PLLI2SCFGR_PLLI2SQ */
+
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* Wait till PLLI2S is disabled */
+ tickstart = HAL_GetTick();
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the PLLI2S division factors */
+#if defined(STM32F446xx)
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ /* I2SPCLK = PLLI2S_VCO / PLLI2SP */
+ /* I2SQCLK = PLLI2S_VCO / PLLI2SQ */
+ /* I2SRCLK = PLLI2S_VCO / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SM, PLLI2SInit->PLLI2SN, \
+ PLLI2SInit->PLLI2SP, PLLI2SInit->PLLI2SQ, PLLI2SInit->PLLI2SR);
+#elif defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) ||\
+ defined(STM32F413xx) || defined(STM32F423xx)
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM)*/
+ /* I2SQCLK = PLLI2S_VCO / PLLI2SQ */
+ /* I2SRCLK = PLLI2S_VCO / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SM, PLLI2SInit->PLLI2SN, \
+ PLLI2SInit->PLLI2SQ, PLLI2SInit->PLLI2SR);
+#elif defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
+ defined(STM32F469xx) || defined(STM32F479xx)
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * PLLI2SN */
+ /* I2SQCLK = PLLI2S_VCO / PLLI2SQ */
+ /* I2SRCLK = PLLI2S_VCO / PLLI2SR */
+ __HAL_RCC_PLLI2S_SAICLK_CONFIG(PLLI2SInit->PLLI2SN, PLLI2SInit->PLLI2SQ, PLLI2SInit->PLLI2SR);
+#elif defined(STM32F411xE)
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) * (PLLI2SN/PLLI2SM) */
+ /* I2SRCLK = PLLI2S_VCO / PLLI2SR */
+ __HAL_RCC_PLLI2S_I2SCLK_CONFIG(PLLI2SInit->PLLI2SM, PLLI2SInit->PLLI2SN, PLLI2SInit->PLLI2SR);
+#else
+ /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) x PLLI2SN */
+ /* I2SRCLK = PLLI2S_VCO / PLLI2SR */
+ __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SN, PLLI2SInit->PLLI2SR);
+#endif /* STM32F446xx */
+
+ /* Enable the PLLI2S */
+ __HAL_RCC_PLLI2S_ENABLE();
+
+ /* Wait till PLLI2S is ready */
+ tickstart = HAL_GetTick();
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) == RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLLI2S.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLLI2S(void)
+{
+ uint32_t tickstart;
+
+ /* Disable the PLLI2S */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* Wait till PLLI2S is disabled */
+ tickstart = HAL_GetTick();
+ while(READ_BIT(RCC->CR, RCC_CR_PLLI2SRDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ return HAL_OK;
+}
+
+#endif /* RCC_PLLI2S_SUPPORT */
+
+#if defined(RCC_PLLSAI_SUPPORT)
+/**
+ * @brief Enable PLLSAI.
+ * @param PLLSAIInit pointer to an RCC_PLLSAIInitTypeDef structure that
+ * contains the configuration information for the PLLSAI
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLLSAI(RCC_PLLSAIInitTypeDef *PLLSAIInit)
+{
+ uint32_t tickstart;
+
+ /* Check for parameters */
+ assert_param(IS_RCC_PLLSAIN_VALUE(PLLSAIInit->PLLSAIN));
+ assert_param(IS_RCC_PLLSAIQ_VALUE(PLLSAIInit->PLLSAIQ));
+#if defined(RCC_PLLSAICFGR_PLLSAIM)
+ assert_param(IS_RCC_PLLSAIM_VALUE(PLLSAIInit->PLLSAIM));
+#endif /* RCC_PLLSAICFGR_PLLSAIM */
+#if defined(RCC_PLLSAICFGR_PLLSAIP)
+ assert_param(IS_RCC_PLLSAIP_VALUE(PLLSAIInit->PLLSAIP));
+#endif /* RCC_PLLSAICFGR_PLLSAIP */
+#if defined(RCC_PLLSAICFGR_PLLSAIR)
+ assert_param(IS_RCC_PLLSAIR_VALUE(PLLSAIInit->PLLSAIR));
+#endif /* RCC_PLLSAICFGR_PLLSAIR */
+
+ /* Disable the PLLSAI */
+ __HAL_RCC_PLLSAI_DISABLE();
+
+ /* Wait till PLLSAI is disabled */
+ tickstart = HAL_GetTick();
+ while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the PLLSAI division factors */
+#if defined(STM32F446xx)
+ /* PLLSAI_VCO = f(VCO clock) = f(PLLSAI clock input) * (PLLSAIN/PLLSAIM) */
+ /* SAIPCLK = PLLSAI_VCO / PLLSAIP */
+ /* SAIQCLK = PLLSAI_VCO / PLLSAIQ */
+ /* SAIRCLK = PLLSAI_VCO / PLLSAIR */
+ __HAL_RCC_PLLSAI_CONFIG(PLLSAIInit->PLLSAIM, PLLSAIInit->PLLSAIN, \
+ PLLSAIInit->PLLSAIP, PLLSAIInit->PLLSAIQ, 0U);
+#elif defined(STM32F469xx) || defined(STM32F479xx)
+ /* PLLSAI_VCO = f(VCO clock) = f(PLLSAI clock input) * PLLSAIN */
+ /* SAIPCLK = PLLSAI_VCO / PLLSAIP */
+ /* SAIQCLK = PLLSAI_VCO / PLLSAIQ */
+ /* SAIRCLK = PLLSAI_VCO / PLLSAIR */
+ __HAL_RCC_PLLSAI_CONFIG(PLLSAIInit->PLLSAIN, PLLSAIInit->PLLSAIP, \
+ PLLSAIInit->PLLSAIQ, PLLSAIInit->PLLSAIR);
+#else
+ /* PLLSAI_VCO = f(VCO clock) = f(PLLSAI clock input) x PLLSAIN */
+ /* SAIQCLK = PLLSAI_VCO / PLLSAIQ */
+ /* SAIRCLK = PLLSAI_VCO / PLLSAIR */
+ __HAL_RCC_PLLSAI_CONFIG(PLLSAIInit->PLLSAIN, PLLSAIInit->PLLSAIQ, PLLSAIInit->PLLSAIR);
+#endif /* STM32F446xx */
+
+ /* Enable the PLLSAI */
+ __HAL_RCC_PLLSAI_ENABLE();
+
+ /* Wait till PLLSAI is ready */
+ tickstart = HAL_GetTick();
+ while(__HAL_RCC_PLLSAI_GET_FLAG() == RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLLSAI.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLLSAI(void)
+{
+ uint32_t tickstart;
+
+ /* Disable the PLLSAI */
+ __HAL_RCC_PLLSAI_DISABLE();
+
+ /* Wait till PLLSAI is disabled */
+ tickstart = HAL_GetTick();
+ while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET)
+ {
+ if((HAL_GetTick() - tickstart) > PLLSAI_TIMEOUT_VALUE)
+ {
+ /* return in case of Timeout detected */
+ return HAL_TIMEOUT;
+ }
+ }
+
+ return HAL_OK;
+}
+
+#endif /* RCC_PLLSAI_SUPPORT */
+
+/**
+ * @}
+ */
+
+#if defined(STM32F446xx)
+/**
+ * @brief Returns the SYSCLK frequency
+ *
+ * @note This function implementation is valid only for STM32F446xx devices.
+ * @note This function add the PLL/PLLR System clock source
+ *
+ * @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 values based on HSE_VALUE(**)
+ * @note If SYSCLK source is PLL or PLLR, function returns values based on HSE_VALUE(**)
+ * or HSI_VALUE(*) multiplied/divided by the PLL factors.
+ * @note (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value
+ * 16 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ * @note (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value
+ * 25 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
+ * baudrate 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)
+{
+ uint32_t pllm = 0U;
+ uint32_t pllvco = 0U;
+ uint32_t pllp = 0U;
+ uint32_t pllr = 0U;
+ uint32_t sysclockfreq = 0U;
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ switch (RCC->CFGR & RCC_CFGR_SWS)
+ {
+ case RCC_CFGR_SWS_HSI: /* HSI used as system clock source */
+ {
+ sysclockfreq = HSI_VALUE;
+ break;
+ }
+ case RCC_CFGR_SWS_HSE: /* HSE used as system clock source */
+ {
+ sysclockfreq = HSE_VALUE;
+ break;
+ }
+ case RCC_CFGR_SWS_PLL: /* PLL/PLLP used as system clock source */
+ {
+ /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN
+ SYSCLK = PLL_VCO / PLLP */
+ pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
+ if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_HSI)
+ {
+ /* HSE used as PLL clock source */
+ pllvco = (uint32_t) ((((uint64_t) HSE_VALUE * ((uint64_t) ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos)))) / (uint64_t)pllm);
+ }
+ else
+ {
+ /* HSI used as PLL clock source */
+ pllvco = (uint32_t) ((((uint64_t) HSI_VALUE * ((uint64_t) ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos)))) / (uint64_t)pllm);
+ }
+ pllp = ((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >> RCC_PLLCFGR_PLLP_Pos) + 1U) *2U);
+
+ sysclockfreq = pllvco/pllp;
+ break;
+ }
+ case RCC_CFGR_SWS_PLLR: /* PLL/PLLR used as system clock source */
+ {
+ /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN
+ SYSCLK = PLL_VCO / PLLR */
+ pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
+ if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_HSI)
+ {
+ /* HSE used as PLL clock source */
+ pllvco = (uint32_t) ((((uint64_t) HSE_VALUE * ((uint64_t) ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos)))) / (uint64_t)pllm);
+ }
+ else
+ {
+ /* HSI used as PLL clock source */
+ pllvco = (uint32_t) ((((uint64_t) HSI_VALUE * ((uint64_t) ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos)))) / (uint64_t)pllm);
+ }
+ pllr = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> RCC_PLLCFGR_PLLR_Pos);
+
+ sysclockfreq = pllvco/pllr;
+ break;
+ }
+ default:
+ {
+ sysclockfreq = HSI_VALUE;
+ break;
+ }
+ }
+ return sysclockfreq;
+}
+#endif /* STM32F446xx */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @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, PLL, PLLI2S and PLLSAI OFF
+ * - AHB, APB1 and APB2 prescaler set to 1.
+ * - CSS, MCO1 and MCO2 OFF
+ * - All interrupts disabled
+ * @note This function doesn't modify the configuration of the
+ * - Peripheral clocks
+ * - LSI, LSE and RTC clocks
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCC_DeInit(void)
+{
+ uint32_t tickstart;
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Set HSION bit to the reset value */
+ SET_BIT(RCC->CR, RCC_CR_HSION);
+
+ /* Wait till HSI is ready */
+ while (READ_BIT(RCC->CR, RCC_CR_HSIRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Set HSITRIM[4:0] bits to the reset value */
+ SET_BIT(RCC->CR, RCC_CR_HSITRIM_4);
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Reset CFGR register */
+ CLEAR_REG(RCC->CFGR);
+
+ /* Wait till clock switch is ready */
+ while (READ_BIT(RCC->CFGR, RCC_CFGR_SWS) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > CLOCKSWITCH_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Clear HSEON, HSEBYP and CSSON bits */
+ CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_HSEBYP | RCC_CR_CSSON);
+
+ /* Wait till HSE is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_HSERDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Clear PLLON bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLLON);
+
+ /* Wait till PLL is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLLRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+#if defined(RCC_PLLI2S_SUPPORT)
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Reset PLLI2SON bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLLI2SON);
+
+ /* Wait till PLLI2S is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLLI2SRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+#endif /* RCC_PLLI2S_SUPPORT */
+
+#if defined(RCC_PLLSAI_SUPPORT)
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Reset PLLSAI bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLLSAION);
+
+ /* Wait till PLLSAI is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLLSAIRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLSAI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+#endif /* RCC_PLLSAI_SUPPORT */
+
+ /* Once PLL, PLLI2S and PLLSAI are OFF, reset PLLCFGR register to default value */
+#if defined(STM32F412Cx) || defined(STM32F412Rx) || defined(STM32F412Vx) || defined(STM32F412Zx) || defined(STM32F413xx) || \
+ defined(STM32F423xx) || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
+ RCC->PLLCFGR = RCC_PLLCFGR_PLLM_4 | RCC_PLLCFGR_PLLN_6 | RCC_PLLCFGR_PLLN_7 | RCC_PLLCFGR_PLLQ_2 | RCC_PLLCFGR_PLLR_1;
+#elif defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx)
+ RCC->PLLCFGR = RCC_PLLCFGR_PLLR_0 | RCC_PLLCFGR_PLLR_1 | RCC_PLLCFGR_PLLR_2 | RCC_PLLCFGR_PLLM_4 | RCC_PLLCFGR_PLLN_6 | RCC_PLLCFGR_PLLN_7 | RCC_PLLCFGR_PLLQ_0 | RCC_PLLCFGR_PLLQ_1 | RCC_PLLCFGR_PLLQ_2 | RCC_PLLCFGR_PLLQ_3;
+#else
+ RCC->PLLCFGR = RCC_PLLCFGR_PLLM_4 | RCC_PLLCFGR_PLLN_6 | RCC_PLLCFGR_PLLN_7 | RCC_PLLCFGR_PLLQ_2;
+#endif /* STM32F412Cx || STM32F412Rx || STM32F412Vx || STM32F412Zx || STM32F413xx || STM32F423xx || STM32F446xx || STM32F469xx || STM32F479xx */
+
+ /* Reset PLLI2SCFGR register to default value */
+#if defined(STM32F412Cx) || defined(STM32F412Rx) || defined(STM32F412Vx) || defined(STM32F412Zx) || defined(STM32F413xx) || \
+ defined(STM32F423xx) || defined(STM32F446xx)
+ RCC->PLLI2SCFGR = RCC_PLLI2SCFGR_PLLI2SM_4 | RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SQ_2 | RCC_PLLI2SCFGR_PLLI2SR_1;
+#elif defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx)
+ RCC->PLLI2SCFGR = RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SR_1;
+#elif defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F469xx) || defined(STM32F479xx)
+ RCC->PLLI2SCFGR = RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SQ_2 | RCC_PLLI2SCFGR_PLLI2SR_1;
+#elif defined(STM32F411xE)
+ RCC->PLLI2SCFGR = RCC_PLLI2SCFGR_PLLI2SM_4 | RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SR_1;
+#endif /* STM32F412Cx || STM32F412Rx || STM32F412Vx || STM32F412Zx || STM32F413xx || STM32F423xx || STM32F446xx */
+
+ /* Reset PLLSAICFGR register */
+#if defined(STM32F427xx) || defined(STM32F429xx) || defined(STM32F437xx) || defined(STM32F439xx) || defined(STM32F469xx) || defined(STM32F479xx)
+ RCC->PLLSAICFGR = RCC_PLLSAICFGR_PLLSAIN_6 | RCC_PLLSAICFGR_PLLSAIN_7 | RCC_PLLSAICFGR_PLLSAIQ_2 | RCC_PLLSAICFGR_PLLSAIR_1;
+#elif defined(STM32F446xx)
+ RCC->PLLSAICFGR = RCC_PLLSAICFGR_PLLSAIM_4 | RCC_PLLSAICFGR_PLLSAIN_6 | RCC_PLLSAICFGR_PLLSAIN_7 | RCC_PLLSAICFGR_PLLSAIQ_2;
+#endif /* STM32F427xx || STM32F429xx || STM32F437xx || STM32F439xx || STM32F469xx || STM32F479xx */
+
+ /* Disable all interrupts */
+ CLEAR_BIT(RCC->CIR, RCC_CIR_LSIRDYIE | RCC_CIR_LSERDYIE | RCC_CIR_HSIRDYIE | RCC_CIR_HSERDYIE | RCC_CIR_PLLRDYIE);
+
+#if defined(RCC_CIR_PLLI2SRDYIE)
+ CLEAR_BIT(RCC->CIR, RCC_CIR_PLLI2SRDYIE);
+#endif /* RCC_CIR_PLLI2SRDYIE */
+
+#if defined(RCC_CIR_PLLSAIRDYIE)
+ CLEAR_BIT(RCC->CIR, RCC_CIR_PLLSAIRDYIE);
+#endif /* RCC_CIR_PLLSAIRDYIE */
+
+ /* Clear all interrupt flags */
+ SET_BIT(RCC->CIR, RCC_CIR_LSIRDYC | RCC_CIR_LSERDYC | RCC_CIR_HSIRDYC | RCC_CIR_HSERDYC | RCC_CIR_PLLRDYC | RCC_CIR_CSSC);
+
+#if defined(RCC_CIR_PLLI2SRDYC)
+ SET_BIT(RCC->CIR, RCC_CIR_PLLI2SRDYC);
+#endif /* RCC_CIR_PLLI2SRDYC */
+
+#if defined(RCC_CIR_PLLSAIRDYC)
+ SET_BIT(RCC->CIR, RCC_CIR_PLLSAIRDYC);
+#endif /* RCC_CIR_PLLSAIRDYC */
+
+ /* Clear LSION bit */
+ CLEAR_BIT(RCC->CSR, RCC_CSR_LSION);
+
+ /* Reset all CSR flags */
+ SET_BIT(RCC->CSR, RCC_CSR_RMVF);
+
+ /* Update the SystemCoreClock global variable */
+ SystemCoreClock = HSI_VALUE;
+
+ /* Adapt Systick interrupt period */
+ if(HAL_InitTick(uwTickPrio) != HAL_OK)
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ return HAL_OK;
+ }
+}
+
+#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) ||\
+ defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
+/**
+ * @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 Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not
+ * supported by this API. 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 API. User should request a transition to HSE Off
+ * first and then HSE On or HSE Bypass.
+ * @note This function add the PLL/PLLR factor management during PLL configuration this feature
+ * is only available in STM32F410xx/STM32F446xx/STM32F469xx/STM32F479xx/STM32F412Zx/STM32F412Vx/STM32F412Rx/STM32F412Cx devices
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
+{
+ uint32_t tickstart = 0U;
+
+ /* Check the parameters */
+ 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 HSE will not disabled */
+#if defined(STM32F446xx)
+ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSE) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSE)) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLLR) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSE)))
+#else
+ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSE) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSE)))
+#endif /* STM32F446xx */
+ {
+ 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 bypassed or 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 defined(STM32F446xx)
+ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSI) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI)) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLLR) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI)))
+#else
+ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSI) ||\
+ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI)))
+#endif /* STM32F446xx */
+ {
+ /* 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 ready */
+ 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;
+ }
+ }
+ }
+ else
+ {
+ /* Disable the Internal Low Speed oscillator (LSI). */
+ __HAL_RCC_LSI_DISABLE();
+
+ /* 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;
+ }
+ }
+ }
+ }
+ /*------------------------------ LSE Configuration -------------------------*/
+ if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE)
+ {
+ FlagStatus pwrclkchanged = RESET;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState));
+
+ /* Update LSE configuration in Backup Domain control register */
+ /* Requires to enable write access to Backup Domain of necessary */
+ if(__HAL_RCC_PWR_IS_CLK_DISABLED())
+ {
+ __HAL_RCC_PWR_CLK_ENABLE();
+ pwrclkchanged = SET;
+ }
+
+ if(HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ /* Enable write access to Backup domain */
+ SET_BIT(PWR->CR, PWR_CR_DBP);
+
+ /* Wait for Backup domain Write protection disable */
+ tickstart = HAL_GetTick();
+
+ while(HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ 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 ready */
+ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /* Restore clock configuration if changed */
+ if(pwrclkchanged == SET)
+ {
+ __HAL_RCC_PWR_CLK_DISABLE();
+ }
+ }
+ /*-------------------------------- 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_CFGR_SWS_PLL)
+ {
+ if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource));
+ assert_param(IS_RCC_PLLM_VALUE(RCC_OscInitStruct->PLL.PLLM));
+ assert_param(IS_RCC_PLLN_VALUE(RCC_OscInitStruct->PLL.PLLN));
+ assert_param(IS_RCC_PLLP_VALUE(RCC_OscInitStruct->PLL.PLLP));
+ assert_param(IS_RCC_PLLQ_VALUE(RCC_OscInitStruct->PLL.PLLQ));
+ assert_param(IS_RCC_PLLR_VALUE(RCC_OscInitStruct->PLL.PLLR));
+
+ /* Disable the main PLL. */
+ __HAL_RCC_PLL_DISABLE();
+
+ /* 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;
+ }
+ }
+
+ /* Configure the main PLL clock source, multiplication and division factors. */
+ __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
+ RCC_OscInitStruct->PLL.PLLM,
+ RCC_OscInitStruct->PLL.PLLN,
+ RCC_OscInitStruct->PLL.PLLP,
+ RCC_OscInitStruct->PLL.PLLQ,
+ RCC_OscInitStruct->PLL.PLLR);
+
+ /* 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 ready */
+ 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 Configures the RCC_OscInitStruct according to the internal
+ * RCC configuration registers.
+ * @param RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that will be configured.
+ *
+ * @note This function is only available in case of STM32F410xx/STM32F446xx/STM32F469xx/STM32F479xx/STM32F412Zx/STM32F412Vx/STM32F412Rx/STM32F412Cx devices.
+ * @note This function add the PLL/PLLR factor management
+ * @retval None
+ */
+void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
+{
+ /* Set all possible values for the Oscillator type parameter ---------------*/
+ RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI;
+
+ /* 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;
+ }
+
+ /* 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) >> RCC_CR_HSITRIM_Pos);
+
+ /* 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->PLLCFGR & RCC_PLLCFGR_PLLSRC);
+ RCC_OscInitStruct->PLL.PLLM = (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM);
+ RCC_OscInitStruct->PLL.PLLN = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos);
+ RCC_OscInitStruct->PLL.PLLP = (uint32_t)((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) + RCC_PLLCFGR_PLLP_0) << 1U) >> RCC_PLLCFGR_PLLP_Pos);
+ RCC_OscInitStruct->PLL.PLLQ = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLQ) >> RCC_PLLCFGR_PLLQ_Pos);
+ RCC_OscInitStruct->PLL.PLLR = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> RCC_PLLCFGR_PLLR_Pos);
+}
+#endif /* STM32F410xx || STM32F446xx || STM32F469xx || STM32F479xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx || STM32F413xx || STM32F423xx */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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