| /** |
| ****************************************************************************** |
| * @file stm32f4xx_ll_rcc.c |
| * @author MCD Application Team |
| * @brief RCC LL module driver. |
| ****************************************************************************** |
| * @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 |
| * |
| ****************************************************************************** |
| */ |
| #if defined(USE_FULL_LL_DRIVER) |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f4xx_ll_rcc.h" |
| #ifdef USE_FULL_ASSERT |
| #include "stm32_assert.h" |
| #else |
| #define assert_param(expr) ((void)0U) |
| #endif |
| /** @addtogroup STM32F4xx_LL_Driver |
| * @{ |
| */ |
| |
| #if defined(RCC) |
| |
| /** @addtogroup RCC_LL |
| * @{ |
| */ |
| |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /* Private macros ------------------------------------------------------------*/ |
| /** @addtogroup RCC_LL_Private_Macros |
| * @{ |
| */ |
| #if defined(FMPI2C1) |
| #define IS_LL_RCC_FMPI2C_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_FMPI2C1_CLKSOURCE) |
| #endif /* FMPI2C1 */ |
| |
| #if defined(LPTIM1) |
| #define IS_LL_RCC_LPTIM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPTIM1_CLKSOURCE)) |
| #endif /* LPTIM1 */ |
| |
| #if defined(SAI1) |
| #if defined(RCC_DCKCFGR_SAI1SRC) |
| #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SAI1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_SAI2_CLKSOURCE)) |
| #elif defined(RCC_DCKCFGR_SAI1ASRC) |
| #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SAI1_A_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_SAI1_B_CLKSOURCE)) |
| #endif /* RCC_DCKCFGR_SAI1SRC */ |
| #endif /* SAI1 */ |
| |
| #if defined(SDIO) |
| #define IS_LL_RCC_SDIO_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SDIO_CLKSOURCE)) |
| #endif /* SDIO */ |
| |
| #if defined(RNG) |
| #define IS_LL_RCC_RNG_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_RNG_CLKSOURCE)) |
| #endif /* RNG */ |
| |
| #if defined(USB_OTG_FS) || defined(USB_OTG_HS) |
| #define IS_LL_RCC_USB_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USB_CLKSOURCE)) |
| #endif /* USB_OTG_FS || USB_OTG_HS */ |
| |
| #if defined(DFSDM2_Channel0) |
| #define IS_LL_RCC_DFSDM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_CLKSOURCE)) |
| |
| #define IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_AUDIO_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_DFSDM2_AUDIO_CLKSOURCE)) |
| #elif defined(DFSDM1_Channel0) |
| #define IS_LL_RCC_DFSDM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_CLKSOURCE)) |
| |
| #define IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_AUDIO_CLKSOURCE)) |
| #endif /* DFSDM2_Channel0 */ |
| |
| #if defined(RCC_DCKCFGR_I2S2SRC) |
| #define IS_LL_RCC_I2S_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2S1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2S2_CLKSOURCE)) |
| #else |
| #define IS_LL_RCC_I2S_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2S1_CLKSOURCE)) |
| #endif /* RCC_DCKCFGR_I2S2SRC */ |
| |
| #if defined(CEC) |
| #define IS_LL_RCC_CEC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_CEC_CLKSOURCE)) |
| #endif /* CEC */ |
| |
| #if defined(DSI) |
| #define IS_LL_RCC_DSI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DSI_CLKSOURCE)) |
| #endif /* DSI */ |
| |
| #if defined(LTDC) |
| #define IS_LL_RCC_LTDC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LTDC_CLKSOURCE)) |
| #endif /* LTDC */ |
| |
| #if defined(SPDIFRX) |
| #define IS_LL_RCC_SPDIFRX_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SPDIFRX1_CLKSOURCE)) |
| #endif /* SPDIFRX */ |
| /** |
| * @} |
| */ |
| |
| /* Private function prototypes -----------------------------------------------*/ |
| /** @defgroup RCC_LL_Private_Functions RCC Private functions |
| * @{ |
| */ |
| uint32_t RCC_GetSystemClockFreq(void); |
| uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency); |
| uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency); |
| uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency); |
| uint32_t RCC_PLL_GetFreqDomain_SYS(uint32_t SYSCLK_Source); |
| uint32_t RCC_PLL_GetFreqDomain_48M(void); |
| #if defined(RCC_DCKCFGR_I2SSRC) || defined(RCC_DCKCFGR_I2S1SRC) |
| uint32_t RCC_PLL_GetFreqDomain_I2S(void); |
| #endif /* RCC_DCKCFGR_I2SSRC || RCC_DCKCFGR_I2S1SRC */ |
| #if defined(SPDIFRX) |
| uint32_t RCC_PLL_GetFreqDomain_SPDIFRX(void); |
| #endif /* SPDIFRX */ |
| #if defined(RCC_PLLCFGR_PLLR) |
| #if defined(SAI1) |
| uint32_t RCC_PLL_GetFreqDomain_SAI(void); |
| #endif /* SAI1 */ |
| #endif /* RCC_PLLCFGR_PLLR */ |
| #if defined(DSI) |
| uint32_t RCC_PLL_GetFreqDomain_DSI(void); |
| #endif /* DSI */ |
| #if defined(RCC_PLLSAI_SUPPORT) |
| uint32_t RCC_PLLSAI_GetFreqDomain_SAI(void); |
| #if defined(RCC_PLLSAICFGR_PLLSAIP) |
| uint32_t RCC_PLLSAI_GetFreqDomain_48M(void); |
| #endif /* RCC_PLLSAICFGR_PLLSAIP */ |
| #if defined(LTDC) |
| uint32_t RCC_PLLSAI_GetFreqDomain_LTDC(void); |
| #endif /* LTDC */ |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| #if defined(RCC_PLLI2S_SUPPORT) |
| uint32_t RCC_PLLI2S_GetFreqDomain_I2S(void); |
| #if defined(RCC_PLLI2SCFGR_PLLI2SQ) && !defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| uint32_t RCC_PLLI2S_GetFreqDomain_48M(void); |
| #endif /* RCC_PLLI2SCFGR_PLLI2SQ && !RCC_DCKCFGR_PLLI2SDIVQ */ |
| #if defined(SAI1) |
| uint32_t RCC_PLLI2S_GetFreqDomain_SAI(void); |
| #endif /* SAI1 */ |
| #if defined(SPDIFRX) |
| uint32_t RCC_PLLI2S_GetFreqDomain_SPDIFRX(void); |
| #endif /* SPDIFRX */ |
| #endif /* RCC_PLLI2S_SUPPORT */ |
| /** |
| * @} |
| */ |
| |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @addtogroup RCC_LL_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup RCC_LL_EF_Init |
| * @{ |
| */ |
| |
| /** |
| * @brief Reset the RCC clock configuration to the default reset state. |
| * @note The default reset state of the clock configuration is given below: |
| * - HSI ON and used as system clock source |
| * - HSE and PLL OFF |
| * - AHB, APB1 and APB2 prescaler set to 1. |
| * - CSS, MCO OFF |
| * - All interrupts disabled |
| * @note This function doesn't modify the configuration of the |
| * - Peripheral clocks |
| * - LSI, LSE and RTC clocks |
| * @retval An ErrorStatus enumeration value: |
| * - SUCCESS: RCC registers are de-initialized |
| * - ERROR: not applicable |
| */ |
| ErrorStatus LL_RCC_DeInit(void) |
| { |
| __IO uint32_t vl_mask; |
| |
| /* Set HSION bit */ |
| LL_RCC_HSI_Enable(); |
| |
| /* Wait for HSI READY bit */ |
| while(LL_RCC_HSI_IsReady() != 1U) |
| {} |
| |
| /* Reset CFGR register */ |
| LL_RCC_WriteReg(CFGR, 0x00000000U); |
| |
| /* Read CR register */ |
| vl_mask = LL_RCC_ReadReg(CR); |
| |
| /* Reset HSEON, HSEBYP, PLLON, CSSON bits */ |
| CLEAR_BIT(vl_mask, |
| (RCC_CR_HSEON | RCC_CR_HSEBYP | RCC_CR_PLLON | RCC_CR_CSSON)); |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| /* Reset PLLSAION bit */ |
| CLEAR_BIT(vl_mask, RCC_CR_PLLSAION); |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| #if defined(RCC_PLLI2S_SUPPORT) |
| /* Reset PLLI2SON bit */ |
| CLEAR_BIT(vl_mask, RCC_CR_PLLI2SON); |
| #endif /* RCC_PLLI2S_SUPPORT */ |
| |
| /* Write new value in CR register */ |
| LL_RCC_WriteReg(CR, vl_mask); |
| |
| /* Set HSITRIM bits to the reset value*/ |
| LL_RCC_HSI_SetCalibTrimming(0x10U); |
| |
| /* Wait for PLL READY bit to be reset */ |
| while(LL_RCC_PLL_IsReady() != 0U) |
| {} |
| |
| /* Reset PLLCFGR register */ |
| LL_RCC_WriteReg(PLLCFGR, RCC_PLLCFGR_RST_VALUE); |
| |
| #if defined(RCC_PLLI2S_SUPPORT) |
| /* Reset PLLI2SCFGR register */ |
| LL_RCC_WriteReg(PLLI2SCFGR, RCC_PLLI2SCFGR_RST_VALUE); |
| #endif /* RCC_PLLI2S_SUPPORT */ |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| /* Reset PLLSAICFGR register */ |
| LL_RCC_WriteReg(PLLSAICFGR, RCC_PLLSAICFGR_RST_VALUE); |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| /* 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); |
| |
| return SUCCESS; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup RCC_LL_EF_Get_Freq |
| * @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks |
| * and different peripheral clocks available on the device. |
| * @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, function returns values based on HSE_VALUE(***) |
| * or HSI_VALUE(**) multiplied/divided by the PLL factors. |
| * @note (**) HSI_VALUE is a constant defined in this 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 this 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 incorrect when using fractional |
| * value for HSE crystal. |
| * @note This function can be used by the user application to compute the |
| * baud-rate for the communication peripherals or configure other parameters. |
| * @{ |
| */ |
| |
| /** |
| * @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks |
| * @note Each time SYSCLK, HCLK, PCLK1 and/or PCLK2 clock changes, this function |
| * must be called to update structure fields. Otherwise, any |
| * configuration based on this function will be incorrect. |
| * @param RCC_Clocks pointer to a @ref LL_RCC_ClocksTypeDef structure which will hold the clocks frequencies |
| * @retval None |
| */ |
| void LL_RCC_GetSystemClocksFreq(LL_RCC_ClocksTypeDef *RCC_Clocks) |
| { |
| /* Get SYSCLK frequency */ |
| RCC_Clocks->SYSCLK_Frequency = RCC_GetSystemClockFreq(); |
| |
| /* HCLK clock frequency */ |
| RCC_Clocks->HCLK_Frequency = RCC_GetHCLKClockFreq(RCC_Clocks->SYSCLK_Frequency); |
| |
| /* PCLK1 clock frequency */ |
| RCC_Clocks->PCLK1_Frequency = RCC_GetPCLK1ClockFreq(RCC_Clocks->HCLK_Frequency); |
| |
| /* PCLK2 clock frequency */ |
| RCC_Clocks->PCLK2_Frequency = RCC_GetPCLK2ClockFreq(RCC_Clocks->HCLK_Frequency); |
| } |
| |
| #if defined(FMPI2C1) |
| /** |
| * @brief Return FMPI2Cx clock frequency |
| * @param FMPI2CxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_FMPI2C1_CLKSOURCE |
| * @retval FMPI2C clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that HSI oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetFMPI2CClockFreq(uint32_t FMPI2CxSource) |
| { |
| uint32_t FMPI2C_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_FMPI2C_CLKSOURCE(FMPI2CxSource)); |
| |
| if (FMPI2CxSource == LL_RCC_FMPI2C1_CLKSOURCE) |
| { |
| /* FMPI2C1 CLK clock frequency */ |
| switch (LL_RCC_GetFMPI2CClockSource(FMPI2CxSource)) |
| { |
| case LL_RCC_FMPI2C1_CLKSOURCE_SYSCLK: /* FMPI2C1 Clock is System Clock */ |
| FMPI2C_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_FMPI2C1_CLKSOURCE_HSI: /* FMPI2C1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady()) |
| { |
| FMPI2C_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_FMPI2C1_CLKSOURCE_PCLK1: /* FMPI2C1 Clock is PCLK1 */ |
| default: |
| FMPI2C_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| } |
| } |
| |
| return FMPI2C_frequency; |
| } |
| #endif /* FMPI2C1 */ |
| |
| /** |
| * @brief Return I2Sx clock frequency |
| * @param I2SxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_I2S1_CLKSOURCE |
| * @arg @ref LL_RCC_I2S2_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval I2S clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetI2SClockFreq(uint32_t I2SxSource) |
| { |
| uint32_t i2s_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_I2S_CLKSOURCE(I2SxSource)); |
| |
| if (I2SxSource == LL_RCC_I2S1_CLKSOURCE) |
| { |
| /* I2S1 CLK clock frequency */ |
| switch (LL_RCC_GetI2SClockSource(I2SxSource)) |
| { |
| #if defined(RCC_PLLI2S_SUPPORT) |
| case LL_RCC_I2S1_CLKSOURCE_PLLI2S: /* I2S1 Clock is PLLI2S */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| i2s_frequency = RCC_PLLI2S_GetFreqDomain_I2S(); |
| } |
| break; |
| #endif /* RCC_PLLI2S_SUPPORT */ |
| |
| #if defined(RCC_DCKCFGR_I2SSRC) || defined(RCC_DCKCFGR_I2S1SRC) |
| case LL_RCC_I2S1_CLKSOURCE_PLL: /* I2S1 Clock is PLL */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| i2s_frequency = RCC_PLL_GetFreqDomain_I2S(); |
| } |
| break; |
| |
| case LL_RCC_I2S1_CLKSOURCE_PLLSRC: /* I2S1 Clock is PLL Main source */ |
| switch (LL_RCC_PLL_GetMainSource()) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* I2S1 Clock is HSE Osc. */ |
| if (LL_RCC_HSE_IsReady()) |
| { |
| i2s_frequency = HSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* I2S1 Clock is HSI Osc. */ |
| default: |
| if (LL_RCC_HSI_IsReady()) |
| { |
| i2s_frequency = HSI_VALUE; |
| } |
| break; |
| } |
| break; |
| #endif /* RCC_DCKCFGR_I2SSRC || RCC_DCKCFGR_I2S1SRC */ |
| |
| case LL_RCC_I2S1_CLKSOURCE_PIN: /* I2S1 Clock is External clock */ |
| default: |
| i2s_frequency = EXTERNAL_CLOCK_VALUE; |
| break; |
| } |
| } |
| #if defined(RCC_DCKCFGR_I2S2SRC) |
| else |
| { |
| /* I2S2 CLK clock frequency */ |
| switch (LL_RCC_GetI2SClockSource(I2SxSource)) |
| { |
| case LL_RCC_I2S2_CLKSOURCE_PLLI2S: /* I2S2 Clock is PLLI2S */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| i2s_frequency = RCC_PLLI2S_GetFreqDomain_I2S(); |
| } |
| break; |
| |
| case LL_RCC_I2S2_CLKSOURCE_PLL: /* I2S2 Clock is PLL */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| i2s_frequency = RCC_PLL_GetFreqDomain_I2S(); |
| } |
| break; |
| |
| case LL_RCC_I2S2_CLKSOURCE_PLLSRC: /* I2S2 Clock is PLL Main source */ |
| switch (LL_RCC_PLL_GetMainSource()) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* I2S2 Clock is HSE Osc. */ |
| if (LL_RCC_HSE_IsReady()) |
| { |
| i2s_frequency = HSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* I2S2 Clock is HSI Osc. */ |
| default: |
| if (LL_RCC_HSI_IsReady()) |
| { |
| i2s_frequency = HSI_VALUE; |
| } |
| break; |
| } |
| break; |
| |
| case LL_RCC_I2S2_CLKSOURCE_PIN: /* I2S2 Clock is External clock */ |
| default: |
| i2s_frequency = EXTERNAL_CLOCK_VALUE; |
| break; |
| } |
| } |
| #endif /* RCC_DCKCFGR_I2S2SRC */ |
| |
| return i2s_frequency; |
| } |
| |
| #if defined(LPTIM1) |
| /** |
| * @brief Return LPTIMx clock frequency |
| * @param LPTIMxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_LPTIM1_CLKSOURCE |
| * @retval LPTIM clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI, LSI or LSE) is not ready |
| */ |
| uint32_t LL_RCC_GetLPTIMClockFreq(uint32_t LPTIMxSource) |
| { |
| uint32_t lptim_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_LPTIM_CLKSOURCE(LPTIMxSource)); |
| |
| if (LPTIMxSource == LL_RCC_LPTIM1_CLKSOURCE) |
| { |
| /* LPTIM1CLK clock frequency */ |
| switch (LL_RCC_GetLPTIMClockSource(LPTIMxSource)) |
| { |
| case LL_RCC_LPTIM1_CLKSOURCE_LSI: /* LPTIM1 Clock is LSI Osc. */ |
| if (LL_RCC_LSI_IsReady()) |
| { |
| lptim_frequency = LSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_HSI: /* LPTIM1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady()) |
| { |
| lptim_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_LSE: /* LPTIM1 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady()) |
| { |
| lptim_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_PCLK1: /* LPTIM1 Clock is PCLK1 */ |
| default: |
| lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| } |
| } |
| |
| return lptim_frequency; |
| } |
| #endif /* LPTIM1 */ |
| |
| #if defined(SAI1) |
| /** |
| * @brief Return SAIx clock frequency |
| * @param SAIxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SAI1_CLKSOURCE (*) |
| * @arg @ref LL_RCC_SAI2_CLKSOURCE (*) |
| * @arg @ref LL_RCC_SAI1_A_CLKSOURCE (*) |
| * @arg @ref LL_RCC_SAI1_B_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval SAI clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetSAIClockFreq(uint32_t SAIxSource) |
| { |
| uint32_t sai_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SAI_CLKSOURCE(SAIxSource)); |
| |
| #if defined(RCC_DCKCFGR_SAI1SRC) |
| if ((SAIxSource == LL_RCC_SAI1_CLKSOURCE) || (SAIxSource == LL_RCC_SAI2_CLKSOURCE)) |
| { |
| /* SAI1CLK clock frequency */ |
| switch (LL_RCC_GetSAIClockSource(SAIxSource)) |
| { |
| case LL_RCC_SAI1_CLKSOURCE_PLLSAI: /* PLLSAI clock used as SAI1 clock source */ |
| case LL_RCC_SAI2_CLKSOURCE_PLLSAI: /* PLLSAI clock used as SAI2 clock source */ |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| sai_frequency = RCC_PLLSAI_GetFreqDomain_SAI(); |
| } |
| break; |
| |
| case LL_RCC_SAI1_CLKSOURCE_PLLI2S: /* PLLI2S clock used as SAI1 clock source */ |
| case LL_RCC_SAI2_CLKSOURCE_PLLI2S: /* PLLI2S clock used as SAI2 clock source */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| sai_frequency = RCC_PLLI2S_GetFreqDomain_SAI(); |
| } |
| break; |
| |
| case LL_RCC_SAI1_CLKSOURCE_PLL: /* PLL clock used as SAI1 clock source */ |
| case LL_RCC_SAI2_CLKSOURCE_PLL: /* PLL clock used as SAI2 clock source */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| sai_frequency = RCC_PLL_GetFreqDomain_SAI(); |
| } |
| break; |
| |
| case LL_RCC_SAI2_CLKSOURCE_PLLSRC: |
| switch (LL_RCC_PLL_GetMainSource()) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE clock used as SAI2 clock source */ |
| if (LL_RCC_HSE_IsReady()) |
| { |
| sai_frequency = HSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI clock used as SAI2 clock source */ |
| default: |
| if (LL_RCC_HSI_IsReady()) |
| { |
| sai_frequency = HSI_VALUE; |
| } |
| break; |
| } |
| break; |
| |
| case LL_RCC_SAI1_CLKSOURCE_PIN: /* External input clock used as SAI1 clock source */ |
| default: |
| sai_frequency = EXTERNAL_CLOCK_VALUE; |
| break; |
| } |
| } |
| #endif /* RCC_DCKCFGR_SAI1SRC */ |
| #if defined(RCC_DCKCFGR_SAI1ASRC) |
| if ((SAIxSource == LL_RCC_SAI1_A_CLKSOURCE) || (SAIxSource == LL_RCC_SAI1_B_CLKSOURCE)) |
| { |
| /* SAI1CLK clock frequency */ |
| switch (LL_RCC_GetSAIClockSource(SAIxSource)) |
| { |
| #if defined(RCC_PLLSAI_SUPPORT) |
| case LL_RCC_SAI1_A_CLKSOURCE_PLLSAI: /* PLLSAI clock used as SAI1 Block A clock source */ |
| case LL_RCC_SAI1_B_CLKSOURCE_PLLSAI: /* PLLSAI clock used as SAI1 Block B clock source */ |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| sai_frequency = RCC_PLLSAI_GetFreqDomain_SAI(); |
| } |
| break; |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| case LL_RCC_SAI1_A_CLKSOURCE_PLLI2S: /* PLLI2S clock used as SAI1 Block A clock source */ |
| case LL_RCC_SAI1_B_CLKSOURCE_PLLI2S: /* PLLI2S clock used as SAI1 Block B clock source */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| sai_frequency = RCC_PLLI2S_GetFreqDomain_SAI(); |
| } |
| break; |
| |
| #if defined(RCC_SAI1A_PLLSOURCE_SUPPORT) |
| case LL_RCC_SAI1_A_CLKSOURCE_PLL: /* PLL clock used as SAI1 Block A clock source */ |
| case LL_RCC_SAI1_B_CLKSOURCE_PLL: /* PLL clock used as SAI1 Block B clock source */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| sai_frequency = RCC_PLL_GetFreqDomain_SAI(); |
| } |
| break; |
| |
| case LL_RCC_SAI1_A_CLKSOURCE_PLLSRC: |
| case LL_RCC_SAI1_B_CLKSOURCE_PLLSRC: |
| switch (LL_RCC_PLL_GetMainSource()) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE clock used as SAI1 Block A or B clock source */ |
| if (LL_RCC_HSE_IsReady()) |
| { |
| sai_frequency = HSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI clock used as SAI1 Block A or B clock source */ |
| default: |
| if (LL_RCC_HSI_IsReady()) |
| { |
| sai_frequency = HSI_VALUE; |
| } |
| break; |
| } |
| break; |
| #endif /* RCC_SAI1A_PLLSOURCE_SUPPORT */ |
| |
| case LL_RCC_SAI1_A_CLKSOURCE_PIN: /* External input clock used as SAI1 Block A clock source */ |
| case LL_RCC_SAI1_B_CLKSOURCE_PIN: /* External input clock used as SAI1 Block B clock source */ |
| default: |
| sai_frequency = EXTERNAL_CLOCK_VALUE; |
| break; |
| } |
| } |
| #endif /* RCC_DCKCFGR_SAI1ASRC */ |
| |
| return sai_frequency; |
| } |
| #endif /* SAI1 */ |
| |
| #if defined(SDIO) |
| /** |
| * @brief Return SDIOx clock frequency |
| * @param SDIOxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SDIO_CLKSOURCE |
| * @retval SDIO clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetSDIOClockFreq(uint32_t SDIOxSource) |
| { |
| uint32_t SDIO_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SDIO_CLKSOURCE(SDIOxSource)); |
| |
| if (SDIOxSource == LL_RCC_SDIO_CLKSOURCE) |
| { |
| #if defined(RCC_DCKCFGR_SDIOSEL) || defined(RCC_DCKCFGR2_SDIOSEL) |
| /* SDIOCLK clock frequency */ |
| switch (LL_RCC_GetSDIOClockSource(SDIOxSource)) |
| { |
| case LL_RCC_SDIO_CLKSOURCE_PLL48CLK: /* PLL48M clock used as SDIO clock source */ |
| switch (LL_RCC_GetCK48MClockSource(LL_RCC_CK48M_CLKSOURCE)) |
| { |
| case LL_RCC_CK48M_CLKSOURCE_PLL: /* PLL clock used as 48Mhz domain clock */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| SDIO_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| break; |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| case LL_RCC_CK48M_CLKSOURCE_PLLSAI: /* PLLSAI clock used as 48Mhz domain clock */ |
| default: |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| SDIO_frequency = RCC_PLLSAI_GetFreqDomain_48M(); |
| } |
| break; |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| #if defined(RCC_PLLI2SCFGR_PLLI2SQ) && !defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| case LL_RCC_CK48M_CLKSOURCE_PLLI2S: /* PLLI2S clock used as 48Mhz domain clock */ |
| default: |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| SDIO_frequency = RCC_PLLI2S_GetFreqDomain_48M(); |
| } |
| break; |
| #endif /* RCC_PLLI2SCFGR_PLLI2SQ && !RCC_DCKCFGR_PLLI2SDIVQ */ |
| } |
| break; |
| |
| case LL_RCC_SDIO_CLKSOURCE_SYSCLK: /* PLL clock used as SDIO clock source */ |
| default: |
| SDIO_frequency = RCC_GetSystemClockFreq(); |
| break; |
| } |
| #else |
| /* PLL clock used as 48Mhz domain clock */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| SDIO_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| #endif /* RCC_DCKCFGR_SDIOSEL || RCC_DCKCFGR2_SDIOSEL */ |
| } |
| |
| return SDIO_frequency; |
| } |
| #endif /* SDIO */ |
| |
| #if defined(RNG) |
| /** |
| * @brief Return RNGx clock frequency |
| * @param RNGxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_RNG_CLKSOURCE |
| * @retval RNG clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetRNGClockFreq(uint32_t RNGxSource) |
| { |
| uint32_t rng_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_RNG_CLKSOURCE(RNGxSource)); |
| |
| #if defined(RCC_DCKCFGR_CK48MSEL) || defined(RCC_DCKCFGR2_CK48MSEL) |
| /* RNGCLK clock frequency */ |
| switch (LL_RCC_GetRNGClockSource(RNGxSource)) |
| { |
| #if defined(RCC_PLLI2SCFGR_PLLI2SQ) && !defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| case LL_RCC_RNG_CLKSOURCE_PLLI2S: /* PLLI2S clock used as RNG clock source */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| rng_frequency = RCC_PLLI2S_GetFreqDomain_48M(); |
| } |
| break; |
| #endif /* RCC_PLLI2SCFGR_PLLI2SQ && !RCC_DCKCFGR_PLLI2SDIVQ */ |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| case LL_RCC_RNG_CLKSOURCE_PLLSAI: /* PLLSAI clock used as RNG clock source */ |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| rng_frequency = RCC_PLLSAI_GetFreqDomain_48M(); |
| } |
| break; |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| case LL_RCC_RNG_CLKSOURCE_PLL: /* PLL clock used as RNG clock source */ |
| default: |
| if (LL_RCC_PLL_IsReady()) |
| { |
| rng_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| break; |
| } |
| #else |
| /* PLL clock used as RNG clock source */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| rng_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| #endif /* RCC_DCKCFGR_CK48MSEL || RCC_DCKCFGR2_CK48MSEL */ |
| |
| return rng_frequency; |
| } |
| #endif /* RNG */ |
| |
| #if defined(CEC) |
| /** |
| * @brief Return CEC clock frequency |
| * @param CECxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_CEC_CLKSOURCE |
| * @retval CEC clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready |
| */ |
| uint32_t LL_RCC_GetCECClockFreq(uint32_t CECxSource) |
| { |
| uint32_t cec_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_CEC_CLKSOURCE(CECxSource)); |
| |
| /* CECCLK clock frequency */ |
| switch (LL_RCC_GetCECClockSource(CECxSource)) |
| { |
| case LL_RCC_CEC_CLKSOURCE_LSE: /* CEC Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady()) |
| { |
| cec_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_CEC_CLKSOURCE_HSI_DIV488: /* CEC Clock is HSI Osc. */ |
| default: |
| if (LL_RCC_HSI_IsReady()) |
| { |
| cec_frequency = HSI_VALUE/488U; |
| } |
| break; |
| } |
| |
| return cec_frequency; |
| } |
| #endif /* CEC */ |
| |
| #if defined(USB_OTG_FS) || defined(USB_OTG_HS) |
| /** |
| * @brief Return USBx clock frequency |
| * @param USBxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_USB_CLKSOURCE |
| * @retval USB clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetUSBClockFreq(uint32_t USBxSource) |
| { |
| uint32_t usb_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_USB_CLKSOURCE(USBxSource)); |
| |
| #if defined(RCC_DCKCFGR_CK48MSEL) || defined(RCC_DCKCFGR2_CK48MSEL) |
| /* USBCLK clock frequency */ |
| switch (LL_RCC_GetUSBClockSource(USBxSource)) |
| { |
| #if defined(RCC_PLLI2SCFGR_PLLI2SQ) && !defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| case LL_RCC_USB_CLKSOURCE_PLLI2S: /* PLLI2S clock used as USB clock source */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| usb_frequency = RCC_PLLI2S_GetFreqDomain_48M(); |
| } |
| break; |
| |
| #endif /* RCC_PLLI2SCFGR_PLLI2SQ && !RCC_DCKCFGR_PLLI2SDIVQ */ |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| case LL_RCC_USB_CLKSOURCE_PLLSAI: /* PLLSAI clock used as USB clock source */ |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| usb_frequency = RCC_PLLSAI_GetFreqDomain_48M(); |
| } |
| break; |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| case LL_RCC_USB_CLKSOURCE_PLL: /* PLL clock used as USB clock source */ |
| default: |
| if (LL_RCC_PLL_IsReady()) |
| { |
| usb_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| break; |
| } |
| #else |
| /* PLL clock used as USB clock source */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| usb_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| #endif /* RCC_DCKCFGR_CK48MSEL || RCC_DCKCFGR2_CK48MSEL */ |
| |
| return usb_frequency; |
| } |
| #endif /* USB_OTG_FS || USB_OTG_HS */ |
| |
| #if defined(DFSDM1_Channel0) |
| /** |
| * @brief Return DFSDMx clock frequency |
| * @param DFSDMxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_DFSDM1_CLKSOURCE |
| * @arg @ref LL_RCC_DFSDM2_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval DFSDM clock frequency (in Hz) |
| */ |
| uint32_t LL_RCC_GetDFSDMClockFreq(uint32_t DFSDMxSource) |
| { |
| uint32_t dfsdm_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_DFSDM_CLKSOURCE(DFSDMxSource)); |
| |
| if (DFSDMxSource == LL_RCC_DFSDM1_CLKSOURCE) |
| { |
| /* DFSDM1CLK clock frequency */ |
| switch (LL_RCC_GetDFSDMClockSource(DFSDMxSource)) |
| { |
| case LL_RCC_DFSDM1_CLKSOURCE_SYSCLK: /* DFSDM1 Clock is SYSCLK */ |
| dfsdm_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_DFSDM1_CLKSOURCE_PCLK2: /* DFSDM1 Clock is PCLK2 */ |
| default: |
| dfsdm_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| } |
| } |
| #if defined(DFSDM2_Channel0) |
| else |
| { |
| /* DFSDM2CLK clock frequency */ |
| switch (LL_RCC_GetDFSDMClockSource(DFSDMxSource)) |
| { |
| case LL_RCC_DFSDM2_CLKSOURCE_SYSCLK: /* DFSDM2 Clock is SYSCLK */ |
| dfsdm_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_DFSDM2_CLKSOURCE_PCLK2: /* DFSDM2 Clock is PCLK2 */ |
| default: |
| dfsdm_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| } |
| } |
| #endif /* DFSDM2_Channel0 */ |
| |
| return dfsdm_frequency; |
| } |
| |
| /** |
| * @brief Return DFSDMx Audio clock frequency |
| * @param DFSDMxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_DFSDM1_AUDIO_CLKSOURCE |
| * @arg @ref LL_RCC_DFSDM2_AUDIO_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval DFSDM clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetDFSDMAudioClockFreq(uint32_t DFSDMxSource) |
| { |
| uint32_t dfsdm_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(DFSDMxSource)); |
| |
| if (DFSDMxSource == LL_RCC_DFSDM1_AUDIO_CLKSOURCE) |
| { |
| /* DFSDM1CLK clock frequency */ |
| switch (LL_RCC_GetDFSDMAudioClockSource(DFSDMxSource)) |
| { |
| case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_I2S1: /* I2S1 clock used as DFSDM1 clock */ |
| dfsdm_frequency = LL_RCC_GetI2SClockFreq(LL_RCC_I2S1_CLKSOURCE); |
| break; |
| |
| case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_I2S2: /* I2S2 clock used as DFSDM1 clock */ |
| default: |
| dfsdm_frequency = LL_RCC_GetI2SClockFreq(LL_RCC_I2S2_CLKSOURCE); |
| break; |
| } |
| } |
| #if defined(DFSDM2_Channel0) |
| else |
| { |
| /* DFSDM2CLK clock frequency */ |
| switch (LL_RCC_GetDFSDMAudioClockSource(DFSDMxSource)) |
| { |
| case LL_RCC_DFSDM2_AUDIO_CLKSOURCE_I2S1: /* I2S1 clock used as DFSDM2 clock */ |
| dfsdm_frequency = LL_RCC_GetI2SClockFreq(LL_RCC_I2S1_CLKSOURCE); |
| break; |
| |
| case LL_RCC_DFSDM2_AUDIO_CLKSOURCE_I2S2: /* I2S2 clock used as DFSDM2 clock */ |
| default: |
| dfsdm_frequency = LL_RCC_GetI2SClockFreq(LL_RCC_I2S2_CLKSOURCE); |
| break; |
| } |
| } |
| #endif /* DFSDM2_Channel0 */ |
| |
| return dfsdm_frequency; |
| } |
| #endif /* DFSDM1_Channel0 */ |
| |
| #if defined(DSI) |
| /** |
| * @brief Return DSI clock frequency |
| * @param DSIxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_DSI_CLKSOURCE |
| * @retval DSI clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that external clock is used |
| */ |
| uint32_t LL_RCC_GetDSIClockFreq(uint32_t DSIxSource) |
| { |
| uint32_t dsi_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_DSI_CLKSOURCE(DSIxSource)); |
| |
| /* DSICLK clock frequency */ |
| switch (LL_RCC_GetDSIClockSource(DSIxSource)) |
| { |
| case LL_RCC_DSI_CLKSOURCE_PLL: /* DSI Clock is PLL Osc. */ |
| if (LL_RCC_PLL_IsReady()) |
| { |
| dsi_frequency = RCC_PLL_GetFreqDomain_DSI(); |
| } |
| break; |
| |
| case LL_RCC_DSI_CLKSOURCE_PHY: /* DSI Clock is DSI physical clock. */ |
| default: |
| dsi_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| } |
| |
| return dsi_frequency; |
| } |
| #endif /* DSI */ |
| |
| #if defined(LTDC) |
| /** |
| * @brief Return LTDC clock frequency |
| * @param LTDCxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_LTDC_CLKSOURCE |
| * @retval LTDC clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator PLLSAI is not ready |
| */ |
| uint32_t LL_RCC_GetLTDCClockFreq(uint32_t LTDCxSource) |
| { |
| uint32_t ltdc_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_LTDC_CLKSOURCE(LTDCxSource)); |
| |
| if (LL_RCC_PLLSAI_IsReady()) |
| { |
| ltdc_frequency = RCC_PLLSAI_GetFreqDomain_LTDC(); |
| } |
| |
| return ltdc_frequency; |
| } |
| #endif /* LTDC */ |
| |
| #if defined(SPDIFRX) |
| /** |
| * @brief Return SPDIFRX clock frequency |
| * @param SPDIFRXxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SPDIFRX1_CLKSOURCE |
| * @retval SPDIFRX clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetSPDIFRXClockFreq(uint32_t SPDIFRXxSource) |
| { |
| uint32_t spdifrx_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SPDIFRX_CLKSOURCE(SPDIFRXxSource)); |
| |
| /* SPDIFRX1CLK clock frequency */ |
| switch (LL_RCC_GetSPDIFRXClockSource(SPDIFRXxSource)) |
| { |
| case LL_RCC_SPDIFRX1_CLKSOURCE_PLLI2S: /* SPDIFRX Clock is PLLI2S Osc. */ |
| if (LL_RCC_PLLI2S_IsReady()) |
| { |
| spdifrx_frequency = RCC_PLLI2S_GetFreqDomain_SPDIFRX(); |
| } |
| break; |
| |
| case LL_RCC_SPDIFRX1_CLKSOURCE_PLL: /* SPDIFRX Clock is PLL Osc. */ |
| default: |
| if (LL_RCC_PLL_IsReady()) |
| { |
| spdifrx_frequency = RCC_PLL_GetFreqDomain_SPDIFRX(); |
| } |
| break; |
| } |
| |
| return spdifrx_frequency; |
| } |
| #endif /* SPDIFRX */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup RCC_LL_Private_Functions |
| * @{ |
| */ |
| |
| /** |
| * @brief Return SYSTEM clock frequency |
| * @retval SYSTEM clock frequency (in Hz) |
| */ |
| uint32_t RCC_GetSystemClockFreq(void) |
| { |
| uint32_t frequency = 0U; |
| |
| /* Get SYSCLK source -------------------------------------------------------*/ |
| switch (LL_RCC_GetSysClkSource()) |
| { |
| case LL_RCC_SYS_CLKSOURCE_STATUS_HSI: /* HSI used as system clock source */ |
| frequency = HSI_VALUE; |
| break; |
| |
| case LL_RCC_SYS_CLKSOURCE_STATUS_HSE: /* HSE used as system clock source */ |
| frequency = HSE_VALUE; |
| break; |
| |
| case LL_RCC_SYS_CLKSOURCE_STATUS_PLL: /* PLL used as system clock source */ |
| frequency = RCC_PLL_GetFreqDomain_SYS(LL_RCC_SYS_CLKSOURCE_STATUS_PLL); |
| break; |
| |
| #if defined(RCC_PLLR_SYSCLK_SUPPORT) |
| case LL_RCC_SYS_CLKSOURCE_STATUS_PLLR: /* PLLR used as system clock source */ |
| frequency = RCC_PLL_GetFreqDomain_SYS(LL_RCC_SYS_CLKSOURCE_STATUS_PLLR); |
| break; |
| #endif /* RCC_PLLR_SYSCLK_SUPPORT */ |
| |
| default: |
| frequency = HSI_VALUE; |
| break; |
| } |
| |
| return frequency; |
| } |
| |
| /** |
| * @brief Return HCLK clock frequency |
| * @param SYSCLK_Frequency SYSCLK clock frequency |
| * @retval HCLK clock frequency (in Hz) |
| */ |
| uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency) |
| { |
| /* HCLK clock frequency */ |
| return __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, LL_RCC_GetAHBPrescaler()); |
| } |
| |
| /** |
| * @brief Return PCLK1 clock frequency |
| * @param HCLK_Frequency HCLK clock frequency |
| * @retval PCLK1 clock frequency (in Hz) |
| */ |
| uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency) |
| { |
| /* PCLK1 clock frequency */ |
| return __LL_RCC_CALC_PCLK1_FREQ(HCLK_Frequency, LL_RCC_GetAPB1Prescaler()); |
| } |
| |
| /** |
| * @brief Return PCLK2 clock frequency |
| * @param HCLK_Frequency HCLK clock frequency |
| * @retval PCLK2 clock frequency (in Hz) |
| */ |
| uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency) |
| { |
| /* PCLK2 clock frequency */ |
| return __LL_RCC_CALC_PCLK2_FREQ(HCLK_Frequency, LL_RCC_GetAPB2Prescaler()); |
| } |
| |
| /** |
| * @brief Return PLL clock frequency used for system domain |
| * @param SYSCLK_Source System clock source |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_SYS(uint32_t SYSCLK_Source) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U, plloutputfreq = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
| SYSCLK = PLL_VCO / (PLLP or PLLR) |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| if (SYSCLK_Source == LL_RCC_SYS_CLKSOURCE_STATUS_PLL) |
| { |
| plloutputfreq = __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetP()); |
| } |
| #if defined(RCC_PLLR_SYSCLK_SUPPORT) |
| else |
| { |
| plloutputfreq = __LL_RCC_CALC_PLLRCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| } |
| #endif /* RCC_PLLR_SYSCLK_SUPPORT */ |
| |
| return plloutputfreq; |
| } |
| |
| /** |
| * @brief Return PLL clock frequency used for 48 MHz domain |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_48M(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM ) * PLLN |
| 48M Domain clock = PLL_VCO / PLLQ |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_48M_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetQ()); |
| } |
| |
| #if defined(DSI) |
| /** |
| * @brief Return PLL clock frequency used for DSI clock |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_DSI(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
| DSICLK = PLL_VCO / PLLR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_DSI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| } |
| #endif /* DSI */ |
| |
| #if defined(RCC_DCKCFGR_I2SSRC) || defined(RCC_DCKCFGR_I2S1SRC) |
| /** |
| * @brief Return PLL clock frequency used for I2S clock |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_I2S(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
| I2SCLK = PLL_VCO / PLLR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_I2S_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| } |
| #endif /* RCC_DCKCFGR_I2SSRC || RCC_DCKCFGR_I2S1SRC */ |
| |
| #if defined(SPDIFRX) |
| /** |
| * @brief Return PLL clock frequency used for SPDIFRX clock |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_SPDIFRX(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
| SPDIFRXCLK = PLL_VCO / PLLR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_SPDIFRX_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| } |
| #endif /* SPDIFRX */ |
| |
| #if defined(RCC_PLLCFGR_PLLR) |
| #if defined(SAI1) |
| /** |
| * @brief Return PLL clock frequency used for SAI clock |
| * @retval PLL clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLL_GetFreqDomain_SAI(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U, plloutputfreq = 0U; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
| SAICLK = (PLL_VCO / PLLR) / PLLDIVR |
| or |
| SAICLK = PLL_VCO / PLLR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| #if defined(RCC_DCKCFGR_PLLDIVR) |
| plloutputfreq = __LL_RCC_CALC_PLLCLK_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR(), LL_RCC_PLL_GetDIVR()); |
| #else |
| plloutputfreq = __LL_RCC_CALC_PLLCLK_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| #endif /* RCC_DCKCFGR_PLLDIVR */ |
| |
| return plloutputfreq; |
| } |
| #endif /* SAI1 */ |
| #endif /* RCC_PLLCFGR_PLLR */ |
| |
| #if defined(RCC_PLLSAI_SUPPORT) |
| /** |
| * @brief Return PLLSAI clock frequency used for SAI domain |
| * @retval PLLSAI clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLSAI_GetFreqDomain_SAI(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLLSAI_VCO = (HSE_VALUE or HSI_VALUE / PLLSAIM) * PLLSAIN |
| SAI domain clock = (PLLSAI_VCO / PLLSAIQ) / PLLSAIDIVQ |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI_SAI_FREQ(pllinputfreq, LL_RCC_PLLSAI_GetDivider(), |
| LL_RCC_PLLSAI_GetN(), LL_RCC_PLLSAI_GetQ(), LL_RCC_PLLSAI_GetDIVQ()); |
| } |
| |
| #if defined(RCC_PLLSAICFGR_PLLSAIP) |
| /** |
| * @brief Return PLLSAI clock frequency used for 48Mhz domain |
| * @retval PLLSAI clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLSAI_GetFreqDomain_48M(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLLSAI_VCO = (HSE_VALUE or HSI_VALUE / PLLSAIM) * PLLSAIN |
| 48M Domain clock = PLLSAI_VCO / PLLSAIP |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI_48M_FREQ(pllinputfreq, LL_RCC_PLLSAI_GetDivider(), |
| LL_RCC_PLLSAI_GetN(), LL_RCC_PLLSAI_GetP()); |
| } |
| #endif /* RCC_PLLSAICFGR_PLLSAIP */ |
| |
| #if defined(LTDC) |
| /** |
| * @brief Return PLLSAI clock frequency used for LTDC domain |
| * @retval PLLSAI clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLSAI_GetFreqDomain_LTDC(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLLSAI_VCO = (HSE_VALUE or HSI_VALUE / PLLSAIM) * PLLSAIN |
| LTDC Domain clock = (PLLSAI_VCO / PLLSAIR) / PLLSAIDIVR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI_LTDC_FREQ(pllinputfreq, LL_RCC_PLLSAI_GetDivider(), |
| LL_RCC_PLLSAI_GetN(), LL_RCC_PLLSAI_GetR(), LL_RCC_PLLSAI_GetDIVR()); |
| } |
| #endif /* LTDC */ |
| #endif /* RCC_PLLSAI_SUPPORT */ |
| |
| #if defined(RCC_PLLI2S_SUPPORT) |
| #if defined(SAI1) |
| /** |
| * @brief Return PLLI2S clock frequency used for SAI domains |
| * @retval PLLI2S clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLI2S_GetFreqDomain_SAI(void) |
| { |
| uint32_t plli2sinputfreq = 0U, plli2ssource = 0U, plli2soutputfreq = 0U; |
| |
| /* PLLI2S_VCO = (HSE_VALUE or HSI_VALUE / PLLI2SM) * PLLI2SN |
| SAI domain clock = (PLLI2S_VCO / PLLI2SQ) / PLLI2SDIVQ |
| or |
| SAI domain clock = (PLLI2S_VCO / PLLI2SR) / PLLI2SDIVR |
| */ |
| plli2ssource = LL_RCC_PLLI2S_GetMainSource(); |
| |
| switch (plli2ssource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLI2S clock source */ |
| plli2sinputfreq = HSE_VALUE; |
| break; |
| |
| #if defined(RCC_PLLI2SCFGR_PLLI2SSRC) |
| case LL_RCC_PLLI2SSOURCE_PIN: /* External pin input clock used as PLLI2S clock source */ |
| plli2sinputfreq = EXTERNAL_CLOCK_VALUE; |
| break; |
| #endif /* RCC_PLLI2SCFGR_PLLI2SSRC */ |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLI2S clock source */ |
| default: |
| plli2sinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| #if defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| plli2soutputfreq = __LL_RCC_CALC_PLLI2S_SAI_FREQ(plli2sinputfreq, LL_RCC_PLLI2S_GetDivider(), |
| LL_RCC_PLLI2S_GetN(), LL_RCC_PLLI2S_GetQ(), LL_RCC_PLLI2S_GetDIVQ()); |
| #else |
| plli2soutputfreq = __LL_RCC_CALC_PLLI2S_SAI_FREQ(plli2sinputfreq, LL_RCC_PLLI2S_GetDivider(), |
| LL_RCC_PLLI2S_GetN(), LL_RCC_PLLI2S_GetR(), LL_RCC_PLLI2S_GetDIVR()); |
| #endif /* RCC_DCKCFGR_PLLI2SDIVQ */ |
| |
| return plli2soutputfreq; |
| } |
| #endif /* SAI1 */ |
| |
| #if defined(SPDIFRX) |
| /** |
| * @brief Return PLLI2S clock frequency used for SPDIFRX domain |
| * @retval PLLI2S clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLI2S_GetFreqDomain_SPDIFRX(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLLI2S_VCO = (HSE_VALUE or HSI_VALUE / PLLI2SM) * PLLI2SN |
| SPDIFRX Domain clock = PLLI2S_VCO / PLLI2SP |
| */ |
| pllsource = LL_RCC_PLLI2S_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLI2S clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLI2S clock source */ |
| default: |
| pllinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| return __LL_RCC_CALC_PLLI2S_SPDIFRX_FREQ(pllinputfreq, LL_RCC_PLLI2S_GetDivider(), |
| LL_RCC_PLLI2S_GetN(), LL_RCC_PLLI2S_GetP()); |
| } |
| #endif /* SPDIFRX */ |
| |
| /** |
| * @brief Return PLLI2S clock frequency used for I2S domain |
| * @retval PLLI2S clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLI2S_GetFreqDomain_I2S(void) |
| { |
| uint32_t plli2sinputfreq = 0U, plli2ssource = 0U, plli2soutputfreq = 0U; |
| |
| /* PLLI2S_VCO = (HSE_VALUE or HSI_VALUE / PLLI2SM) * PLLI2SN |
| I2S Domain clock = PLLI2S_VCO / PLLI2SR |
| */ |
| plli2ssource = LL_RCC_PLLI2S_GetMainSource(); |
| |
| switch (plli2ssource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLI2S clock source */ |
| plli2sinputfreq = HSE_VALUE; |
| break; |
| |
| #if defined(RCC_PLLI2SCFGR_PLLI2SSRC) |
| case LL_RCC_PLLI2SSOURCE_PIN: /* External pin input clock used as PLLI2S clock source */ |
| plli2sinputfreq = EXTERNAL_CLOCK_VALUE; |
| break; |
| #endif /* RCC_PLLI2SCFGR_PLLI2SSRC */ |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLI2S clock source */ |
| default: |
| plli2sinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| plli2soutputfreq = __LL_RCC_CALC_PLLI2S_I2S_FREQ(plli2sinputfreq, LL_RCC_PLLI2S_GetDivider(), |
| LL_RCC_PLLI2S_GetN(), LL_RCC_PLLI2S_GetR()); |
| |
| return plli2soutputfreq; |
| } |
| |
| #if defined(RCC_PLLI2SCFGR_PLLI2SQ) && !defined(RCC_DCKCFGR_PLLI2SDIVQ) |
| /** |
| * @brief Return PLLI2S clock frequency used for 48Mhz domain |
| * @retval PLLI2S clock frequency (in Hz) |
| */ |
| uint32_t RCC_PLLI2S_GetFreqDomain_48M(void) |
| { |
| uint32_t plli2sinputfreq = 0U, plli2ssource = 0U, plli2soutputfreq = 0U; |
| |
| /* PLL48M_VCO = (HSE_VALUE or HSI_VALUE / PLLI2SM) * PLLI2SN |
| 48M Domain clock = PLLI2S_VCO / PLLI2SQ |
| */ |
| plli2ssource = LL_RCC_PLLI2S_GetMainSource(); |
| |
| switch (plli2ssource) |
| { |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLI2S clock source */ |
| plli2sinputfreq = HSE_VALUE; |
| break; |
| |
| #if defined(RCC_PLLI2SCFGR_PLLI2SSRC) |
| case LL_RCC_PLLI2SSOURCE_PIN: /* External pin input clock used as PLLI2S clock source */ |
| plli2sinputfreq = EXTERNAL_CLOCK_VALUE; |
| break; |
| #endif /* RCC_PLLI2SCFGR_PLLI2SSRC */ |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLI2S clock source */ |
| default: |
| plli2sinputfreq = HSI_VALUE; |
| break; |
| } |
| |
| plli2soutputfreq = __LL_RCC_CALC_PLLI2S_48M_FREQ(plli2sinputfreq, LL_RCC_PLLI2S_GetDivider(), |
| LL_RCC_PLLI2S_GetN(), LL_RCC_PLLI2S_GetQ()); |
| |
| return plli2soutputfreq; |
| } |
| #endif /* RCC_PLLI2SCFGR_PLLI2SQ && !RCC_DCKCFGR_PLLI2SDIVQ */ |
| #endif /* RCC_PLLI2S_SUPPORT */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* defined(RCC) */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* USE_FULL_LL_DRIVER */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
