Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_rcc.c @ 309:b0045281cb2d cleanup-4
cleanup: factor out SHelper typedef (and more)
It is totally useless to carry some data around in the SLifeData
global data, that is never used in a significant way. All data
in the SHelper typedef can trivially be changed to static
data in the new setAvgDepth code.
Further, cleanup the setAvgDepth code. Reset to 0 instead of 1,
adapt the references to the new local and static data instead
of pointers to the external data.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Fri, 24 May 2019 09:29:29 +0200 |
parents | c78bcbd5deda |
children |
line wrap: on
line source
/** ****************************************************************************** * @file stm32f4xx_ll_rcc.c * @author MCD Application Team * @brief RCC LL module driver. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ #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) { uint32_t vl_mask = 0U; /* 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); vl_mask = 0xFFFFFFFFU; /* Reset HSEON, PLLSYSON 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 mask 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****/