| /** |
| ****************************************************************************** |
| * @file stm32l4xx_ll_rcc.c |
| * @author MCD Application Team |
| * @brief RCC LL module driver. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2017 STMicroelectronics. |
| * All rights reserved. |
| * |
| * This software is licensed under terms that can be found in the LICENSE file in |
| * the root directory of this software component. |
| * If no LICENSE file comes with this software, it is provided AS-IS. |
| ****************************************************************************** |
| */ |
| #if defined(USE_FULL_LL_DRIVER) |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l4xx_ll_rcc.h" |
| #ifdef USE_FULL_ASSERT |
| #include "stm32_assert.h" |
| #else |
| #define assert_param(expr) ((void)0U) |
| #endif |
| /** @addtogroup STM32L4xx_LL_Driver |
| * @{ |
| */ |
| |
| #if defined(RCC) |
| |
| /** @addtogroup RCC_LL |
| * @{ |
| */ |
| |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /* Private macros ------------------------------------------------------------*/ |
| /** @addtogroup RCC_LL_Private_Macros |
| * @{ |
| */ |
| #if defined(RCC_CCIPR_USART3SEL) |
| #define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_USART2_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_USART3_CLKSOURCE)) |
| #else |
| #define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_USART2_CLKSOURCE)) |
| |
| #endif /* RCC_CCIPR_USART3SEL */ |
| #if defined(RCC_CCIPR_UART4SEL) && defined(RCC_CCIPR_UART5SEL) |
| #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_UART4_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_UART5_CLKSOURCE)) |
| #elif defined(RCC_CCIPR_UART4SEL) |
| #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_UART4_CLKSOURCE) |
| #elif defined(RCC_CCIPR_UART5SEL) |
| #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_UART5_CLKSOURCE) |
| #endif /* RCC_CCIPR_UART4SEL && RCC_CCIPR_UART5SEL*/ |
| |
| #define IS_LL_RCC_LPUART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPUART1_CLKSOURCE)) |
| |
| #if defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL) && defined(RCC_CCIPR2_I2C4SEL) |
| #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C2_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C4_CLKSOURCE)) |
| #elif defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL) |
| #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C2_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE)) |
| |
| #elif !defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL) |
| #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE)) |
| |
| #else |
| #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) |
| |
| #endif /* RCC_CCIPR_I2C2SEL && RCC_CCIPR_I2C3SEL && RCC_CCIPR2_I2C4SEL */ |
| #define IS_LL_RCC_LPTIM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPTIM1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_LPTIM2_CLKSOURCE)) |
| |
| #if defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI2SEL) |
| #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SAI1_CLKSOURCE) \ |
| || ((__VALUE__) == LL_RCC_SAI2_CLKSOURCE)) |
| #elif defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR2_SAI1SEL) |
| #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_SAI1_CLKSOURCE) |
| #endif /* RCC_CCIPR_SAI2SEL RCC_CCIPR2_SAI2SEL ||*/ |
| |
| #if defined(SDMMC1) |
| #if defined(RCC_CCIPR2_SDMMCSEL) |
| #define IS_LL_RCC_SDMMC_KERNELCLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SDMMC1_KERNELCLKSOURCE)) |
| #endif /* RCC_CCIPR2_SDMMCSEL */ |
| |
| #define IS_LL_RCC_SDMMC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SDMMC1_CLKSOURCE)) |
| #endif /* SDMMC1 */ |
| |
| #define IS_LL_RCC_RNG_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_RNG_CLKSOURCE)) |
| |
| #if defined(USB_OTG_FS) || defined(USB) |
| #define IS_LL_RCC_USB_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USB_CLKSOURCE)) |
| #endif /* USB_OTG_FS || USB */ |
| |
| #define IS_LL_RCC_ADC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_ADC_CLKSOURCE)) |
| |
| #if defined(SWPMI1) |
| #define IS_LL_RCC_SWPMI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SWPMI1_CLKSOURCE)) |
| #endif /* SWPMI1 */ |
| |
| #if defined(DFSDM1_Channel0) |
| #define IS_LL_RCC_DFSDM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_CLKSOURCE)) |
| #if defined(RCC_CCIPR2_DFSDM1SEL) |
| #define IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_AUDIO_CLKSOURCE)) |
| #endif /* RCC_CCIPR2_DFSDM1SEL */ |
| #endif /* DFSDM1_Channel0 */ |
| |
| #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(OCTOSPI1) |
| #define IS_LL_RCC_OCTOSPI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_OCTOSPI_CLKSOURCE)) |
| #endif /* OCTOSPI */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private function prototypes -----------------------------------------------*/ |
| /** @defgroup RCC_LL_Private_Functions RCC Private functions |
| * @{ |
| */ |
| static uint32_t RCC_GetSystemClockFreq(void); |
| static uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency); |
| static uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency); |
| static uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency); |
| static uint32_t RCC_PLL_GetFreqDomain_SYS(void); |
| #if defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI1SEL) || defined(RCC_CCIPR2_SAI2SEL) |
| static uint32_t RCC_PLL_GetFreqDomain_SAI(void); |
| #endif |
| static uint32_t RCC_PLL_GetFreqDomain_48M(void); |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_SAI(void); |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_48M(void); |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_ADC(void); |
| #endif /* RCC_PLLSAI1_SUPPORT */ |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_SAI(void); |
| #if defined(LTDC) |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_LTDC(void); |
| #else |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_ADC(void); |
| #endif /* LTDC */ |
| #if defined(DSI) |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_DSI(void); |
| #endif /* DSI */ |
| #endif /*RCC_PLLSAI2_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: |
| * - MSI ON and used as system clock source |
| * - HSE, HSI, PLL, PLLSAI1 and PLLSAI2 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 MSION bit */ |
| LL_RCC_MSI_Enable(); |
| |
| /* Insure MSIRDY bit is set before writing default MSIRANGE value */ |
| while (LL_RCC_MSI_IsReady() == 0U) |
| { |
| } |
| |
| /* Set MSIRANGE default value */ |
| LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_6); |
| |
| /* Set MSITRIM bits to the reset value*/ |
| LL_RCC_MSI_SetCalibTrimming(0); |
| |
| /* Set HSITRIM bits to the reset value*/ |
| #if defined(RCC_ICSCR_HSITRIM_6) |
| LL_RCC_HSI_SetCalibTrimming(0x40U); |
| #else |
| LL_RCC_HSI_SetCalibTrimming(0x10U); |
| #endif /* RCC_ICSCR_HSITRIM_6 */ |
| |
| /* Reset CFGR register */ |
| LL_RCC_WriteReg(CFGR, 0x00000000U); |
| |
| /* Read CR register */ |
| vl_mask = LL_RCC_ReadReg(CR); |
| |
| /* Reset HSION, HSIKERON, HSIASFS, HSEON, PLLON bits */ |
| CLEAR_BIT(vl_mask, |
| (RCC_CR_HSION | RCC_CR_HSIASFS | RCC_CR_HSIKERON | RCC_CR_HSEON | RCC_CR_PLLON)); |
| |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| /* Reset PLLSAI1ON bit */ |
| CLEAR_BIT(vl_mask, RCC_CR_PLLSAI1ON); |
| #endif /*RCC_PLLSAI1_SUPPORT*/ |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| /* Reset PLLSAI2ON bit */ |
| CLEAR_BIT(vl_mask, RCC_CR_PLLSAI2ON); |
| #endif /*RCC_PLLSAI2_SUPPORT*/ |
| |
| /* Write new value in CR register */ |
| LL_RCC_WriteReg(CR, vl_mask); |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| /* Wait for PLLRDY, PLLSAI1RDY and PLLSAI2RDY bits to be reset */ |
| while(READ_BIT(RCC->CR, RCC_CR_PLLRDY | RCC_CR_PLLSAI1RDY | RCC_CR_PLLSAI2RDY) != 0U) |
| { |
| } |
| #elif defined(RCC_PLLSAI1_SUPPORT) |
| /* Wait for PLLRDY and PLLSAI1RDY to be reset */ |
| while(READ_BIT(RCC->CR, RCC_CR_PLLRDY | RCC_CR_PLLSAI1RDY) != 0U) |
| { |
| } |
| #else |
| /* Wait for PLLRDY bit to be reset */ |
| while(READ_BIT(RCC->CR, RCC_CR_PLLRDY) != 0U) |
| { |
| } |
| #endif |
| |
| /* Reset PLLCFGR register */ |
| LL_RCC_WriteReg(PLLCFGR, 16U << RCC_PLLCFGR_PLLN_Pos); |
| |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| /* Reset PLLSAI1CFGR register */ |
| LL_RCC_WriteReg(PLLSAI1CFGR, 16U << RCC_PLLSAI1CFGR_PLLSAI1N_Pos); |
| #endif /*RCC_PLLSAI1_SUPPORT*/ |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| /* Reset PLLSAI2CFGR register */ |
| LL_RCC_WriteReg(PLLSAI2CFGR, 16U << RCC_PLLSAI2CFGR_PLLSAI2N_Pos); |
| #endif /*RCC_PLLSAI2_SUPPORT*/ |
| |
| /* Reset HSEBYP bit */ |
| LL_RCC_HSE_DisableBypass(); |
| |
| /* Disable all interrupts */ |
| LL_RCC_WriteReg(CIER, 0x00000000U); |
| |
| /* Clear all interrupt flags */ |
| vl_mask = RCC_CICR_LSIRDYC | RCC_CICR_LSERDYC | RCC_CICR_MSIRDYC | RCC_CICR_HSIRDYC | RCC_CICR_HSERDYC | RCC_CICR_PLLRDYC | \ |
| RCC_CICR_CSSC | RCC_CICR_LSECSSC; |
| #if defined(RCC_HSI48_SUPPORT) |
| vl_mask |= RCC_CICR_HSI48RDYC; |
| #endif |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| vl_mask |= RCC_CICR_PLLSAI1RDYC; |
| #endif |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| vl_mask |= RCC_CICR_PLLSAI2RDYC; |
| #endif |
| LL_RCC_WriteReg(CICR, vl_mask); |
| |
| /* Clear reset flags */ |
| LL_RCC_ClearResetFlags(); |
| |
| 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 MSI, function returns values based on MSI_VALUE(*) |
| * @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(**) or MSI_VALUE(*) multiplied/divided by the PLL factors. |
| * @note (*) MSI_VALUE is a constant defined in this file (default value |
| * 4 MHz) but the real value may vary depending on the variations |
| * in voltage and temperature. |
| * @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 |
| * 8 MHz), user has to ensure that HSE_VALUE is same as the real |
| * frequency of the crystal used. Otherwise, this function may |
| * have wrong result. |
| * @note The result of this function could be 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); |
| } |
| |
| /** |
| * @brief Return USARTx clock frequency |
| * @param USARTxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_USART1_CLKSOURCE |
| * @arg @ref LL_RCC_USART2_CLKSOURCE |
| * @arg @ref LL_RCC_USART3_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval USART clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready |
| */ |
| uint32_t LL_RCC_GetUSARTClockFreq(uint32_t USARTxSource) |
| { |
| uint32_t usart_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_USART_CLKSOURCE(USARTxSource)); |
| |
| if (USARTxSource == LL_RCC_USART1_CLKSOURCE) |
| { |
| /* USART1CLK clock frequency */ |
| switch (LL_RCC_GetUSARTClockSource(USARTxSource)) |
| { |
| case LL_RCC_USART1_CLKSOURCE_SYSCLK: /* USART1 Clock is System Clock */ |
| usart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_USART1_CLKSOURCE_HSI: /* USART1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| usart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART1_CLKSOURCE_LSE: /* USART1 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| usart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART1_CLKSOURCE_PCLK2: /* USART1 Clock is PCLK2 */ |
| usart_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| else if (USARTxSource == LL_RCC_USART2_CLKSOURCE) |
| { |
| /* USART2CLK clock frequency */ |
| switch (LL_RCC_GetUSARTClockSource(USARTxSource)) |
| { |
| case LL_RCC_USART2_CLKSOURCE_SYSCLK: /* USART2 Clock is System Clock */ |
| usart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_USART2_CLKSOURCE_HSI: /* USART2 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| usart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART2_CLKSOURCE_LSE: /* USART2 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| usart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART2_CLKSOURCE_PCLK1: /* USART2 Clock is PCLK1 */ |
| usart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| else |
| { |
| #if defined(RCC_CCIPR_USART3SEL) |
| if (USARTxSource == LL_RCC_USART3_CLKSOURCE) |
| { |
| /* USART3CLK clock frequency */ |
| switch (LL_RCC_GetUSARTClockSource(USARTxSource)) |
| { |
| case LL_RCC_USART3_CLKSOURCE_SYSCLK: /* USART3 Clock is System Clock */ |
| usart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_USART3_CLKSOURCE_HSI: /* USART3 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| usart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART3_CLKSOURCE_LSE: /* USART3 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| usart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_USART3_CLKSOURCE_PCLK1: /* USART3 Clock is PCLK1 */ |
| usart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #endif /* RCC_CCIPR_USART3SEL */ |
| } |
| return usart_frequency; |
| } |
| |
| #if defined(RCC_CCIPR_UART4SEL) || defined(RCC_CCIPR_UART5SEL) |
| /** |
| * @brief Return UARTx clock frequency |
| * @param UARTxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_UART4_CLKSOURCE |
| * @arg @ref LL_RCC_UART5_CLKSOURCE |
| * @retval UART clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready |
| */ |
| uint32_t LL_RCC_GetUARTClockFreq(uint32_t UARTxSource) |
| { |
| uint32_t uart_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_UART_CLKSOURCE(UARTxSource)); |
| |
| #if defined(RCC_CCIPR_UART4SEL) |
| if (UARTxSource == LL_RCC_UART4_CLKSOURCE) |
| { |
| /* UART4CLK clock frequency */ |
| switch (LL_RCC_GetUARTClockSource(UARTxSource)) |
| { |
| case LL_RCC_UART4_CLKSOURCE_SYSCLK: /* UART4 Clock is System Clock */ |
| uart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_UART4_CLKSOURCE_HSI: /* UART4 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| uart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_UART4_CLKSOURCE_LSE: /* UART4 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| uart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_UART4_CLKSOURCE_PCLK1: /* UART4 Clock is PCLK1 */ |
| uart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #endif /* RCC_CCIPR_UART4SEL */ |
| |
| #if defined(RCC_CCIPR_UART5SEL) |
| if (UARTxSource == LL_RCC_UART5_CLKSOURCE) |
| { |
| /* UART5CLK clock frequency */ |
| switch (LL_RCC_GetUARTClockSource(UARTxSource)) |
| { |
| case LL_RCC_UART5_CLKSOURCE_SYSCLK: /* UART5 Clock is System Clock */ |
| uart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_UART5_CLKSOURCE_HSI: /* UART5 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| uart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_UART5_CLKSOURCE_LSE: /* UART5 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| uart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_UART5_CLKSOURCE_PCLK1: /* UART5 Clock is PCLK1 */ |
| uart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #endif /* RCC_CCIPR_UART5SEL */ |
| |
| return uart_frequency; |
| } |
| #endif /* RCC_CCIPR_UART4SEL || RCC_CCIPR_UART5SEL */ |
| |
| /** |
| * @brief Return I2Cx clock frequency |
| * @param I2CxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_I2C1_CLKSOURCE |
| * @arg @ref LL_RCC_I2C2_CLKSOURCE (*) |
| * @arg @ref LL_RCC_I2C3_CLKSOURCE |
| * @arg @ref LL_RCC_I2C4_CLKSOURCE (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval I2C clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that HSI oscillator is not ready |
| */ |
| uint32_t LL_RCC_GetI2CClockFreq(uint32_t I2CxSource) |
| { |
| uint32_t i2c_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_I2C_CLKSOURCE(I2CxSource)); |
| |
| if (I2CxSource == LL_RCC_I2C1_CLKSOURCE) |
| { |
| /* I2C1 CLK clock frequency */ |
| switch (LL_RCC_GetI2CClockSource(I2CxSource)) |
| { |
| case LL_RCC_I2C1_CLKSOURCE_SYSCLK: /* I2C1 Clock is System Clock */ |
| i2c_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_I2C1_CLKSOURCE_HSI: /* I2C1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| i2c_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_I2C1_CLKSOURCE_PCLK1: /* I2C1 Clock is PCLK1 */ |
| i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #if defined(RCC_CCIPR_I2C2SEL) |
| else if (I2CxSource == LL_RCC_I2C2_CLKSOURCE) |
| { |
| /* I2C2 CLK clock frequency */ |
| switch (LL_RCC_GetI2CClockSource(I2CxSource)) |
| { |
| case LL_RCC_I2C2_CLKSOURCE_SYSCLK: /* I2C2 Clock is System Clock */ |
| i2c_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_I2C2_CLKSOURCE_HSI: /* I2C2 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| i2c_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_I2C2_CLKSOURCE_PCLK1: /* I2C2 Clock is PCLK1 */ |
| i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #endif /*RCC_CCIPR_I2C2SEL*/ |
| else |
| { |
| if (I2CxSource == LL_RCC_I2C3_CLKSOURCE) |
| { |
| /* I2C3 CLK clock frequency */ |
| switch (LL_RCC_GetI2CClockSource(I2CxSource)) |
| { |
| case LL_RCC_I2C3_CLKSOURCE_SYSCLK: /* I2C3 Clock is System Clock */ |
| i2c_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_I2C3_CLKSOURCE_HSI: /* I2C3 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| i2c_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_I2C3_CLKSOURCE_PCLK1: /* I2C3 Clock is PCLK1 */ |
| i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #if defined(RCC_CCIPR2_I2C4SEL) |
| else |
| { |
| if (I2CxSource == LL_RCC_I2C4_CLKSOURCE) |
| { |
| /* I2C4 CLK clock frequency */ |
| switch (LL_RCC_GetI2CClockSource(I2CxSource)) |
| { |
| case LL_RCC_I2C4_CLKSOURCE_SYSCLK: /* I2C4 Clock is System Clock */ |
| i2c_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_I2C4_CLKSOURCE_HSI: /* I2C4 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| i2c_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_I2C4_CLKSOURCE_PCLK1: /* I2C4 Clock is PCLK1 */ |
| i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| } |
| #endif /*RCC_CCIPR2_I2C4SEL*/ |
| } |
| |
| return i2c_frequency; |
| } |
| |
| |
| /** |
| * @brief Return LPUARTx clock frequency |
| * @param LPUARTxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_LPUART1_CLKSOURCE |
| * @retval LPUART clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready |
| */ |
| uint32_t LL_RCC_GetLPUARTClockFreq(uint32_t LPUARTxSource) |
| { |
| uint32_t lpuart_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_LPUART_CLKSOURCE(LPUARTxSource)); |
| |
| /* LPUART1CLK clock frequency */ |
| switch (LL_RCC_GetLPUARTClockSource(LPUARTxSource)) |
| { |
| case LL_RCC_LPUART1_CLKSOURCE_SYSCLK: /* LPUART1 Clock is System Clock */ |
| lpuart_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_LPUART1_CLKSOURCE_HSI: /* LPUART1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| lpuart_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPUART1_CLKSOURCE_LSE: /* LPUART1 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| lpuart_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPUART1_CLKSOURCE_PCLK1: /* LPUART1 Clock is PCLK1 */ |
| lpuart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return lpuart_frequency; |
| } |
| |
| /** |
| * @brief Return LPTIMx clock frequency |
| * @param LPTIMxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_LPTIM1_CLKSOURCE |
| * @arg @ref LL_RCC_LPTIM2_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() != 0U) |
| { |
| #if defined(RCC_CSR_LSIPREDIV) |
| if (LL_RCC_LSI_GetPrediv() == LL_RCC_LSI_PREDIV_128) |
| { |
| lptim_frequency = LSI_VALUE / 128U; |
| } |
| else |
| #endif /* RCC_CSR_LSIPREDIV */ |
| { |
| lptim_frequency = LSI_VALUE; |
| } |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_HSI: /* LPTIM1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| lptim_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_LSE: /* LPTIM1 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| lptim_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM1_CLKSOURCE_PCLK1: /* LPTIM1 Clock is PCLK1 */ |
| lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| else |
| { |
| if (LPTIMxSource == LL_RCC_LPTIM2_CLKSOURCE) |
| { |
| /* LPTIM2CLK clock frequency */ |
| switch (LL_RCC_GetLPTIMClockSource(LPTIMxSource)) |
| { |
| case LL_RCC_LPTIM2_CLKSOURCE_LSI: /* LPTIM2 Clock is LSI Osc. */ |
| if (LL_RCC_LSI_IsReady() != 0U) |
| { |
| #if defined(RCC_CSR_LSIPREDIV) |
| if (LL_RCC_LSI_GetPrediv() == LL_RCC_LSI_PREDIV_128) |
| { |
| lptim_frequency = LSI_VALUE / 128U; |
| } |
| else |
| #endif /* RCC_CSR_LSIPREDIV */ |
| { |
| lptim_frequency = LSI_VALUE; |
| } |
| } |
| break; |
| |
| case LL_RCC_LPTIM2_CLKSOURCE_HSI: /* LPTIM2 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| lptim_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM2_CLKSOURCE_LSE: /* LPTIM2 Clock is LSE Osc. */ |
| if (LL_RCC_LSE_IsReady() != 0U) |
| { |
| lptim_frequency = LSE_VALUE; |
| } |
| break; |
| |
| case LL_RCC_LPTIM2_CLKSOURCE_PCLK1: /* LPTIM2 Clock is PCLK1 */ |
| lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| } |
| |
| return lptim_frequency; |
| } |
| |
| #if defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI1SEL) || defined(RCC_CCIPR2_SAI2SEL) |
| /** |
| * @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 (*) |
| * |
| * (*) value not defined in all devices. |
| * @retval SAI clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that PLL 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 (SAIxSource == LL_RCC_SAI1_CLKSOURCE) |
| { |
| /* SAI1CLK clock frequency */ |
| switch (LL_RCC_GetSAIClockSource(SAIxSource)) |
| { |
| case LL_RCC_SAI1_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SAI1 clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLLSAI1_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| case LL_RCC_SAI1_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as SAI1 clock source */ |
| if (LL_RCC_PLLSAI2_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI2_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLLSAI2_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| #endif /* RCC_PLLSAI2_SUPPORT */ |
| case LL_RCC_SAI1_CLKSOURCE_PLL: /* PLL clock used as SAI1 clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLL_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| case LL_RCC_SAI1_CLKSOURCE_PIN: /* External input clock used as SAI1 clock source */ |
| sai_frequency = EXTERNAL_SAI1_CLOCK_VALUE; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| else |
| { |
| #if defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI2SEL) |
| if (SAIxSource == LL_RCC_SAI2_CLKSOURCE) |
| { |
| /* SAI2CLK clock frequency */ |
| switch (LL_RCC_GetSAIClockSource(SAIxSource)) |
| { |
| case LL_RCC_SAI2_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SAI2 clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLLSAI1_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| case LL_RCC_SAI2_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as SAI2 clock source */ |
| if (LL_RCC_PLLSAI2_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI2_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLLSAI2_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| #endif /* RCC_PLLSAI2_SUPPORT */ |
| case LL_RCC_SAI2_CLKSOURCE_PLL: /* PLL clock used as SAI2 clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U) |
| { |
| sai_frequency = RCC_PLL_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| case LL_RCC_SAI2_CLKSOURCE_PIN: /* External input clock used as SAI2 clock source */ |
| sai_frequency = EXTERNAL_SAI2_CLOCK_VALUE; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| #endif /* RCC_CCIPR_SAI2SEL || RCC_CCIPR2_SAI2SEL */ |
| } |
| |
| return sai_frequency; |
| } |
| #endif /* RCC_CCIPR_SAI1SEL || RCC_CCIPR_SAI2SEL || RCC_CCIPR2_SAI1SEL || RCC_CCIPR2_SAI2SEL*/ |
| |
| #if defined(SDMMC1) |
| #if defined(RCC_CCIPR2_SDMMCSEL) |
| /** |
| * @brief Return SDMMCx kernel clock frequency |
| * @param SDMMCxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SDMMC1_KERNELCLKSOURCE |
| * @retval SDMMC clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected |
| */ |
| uint32_t LL_RCC_GetSDMMCKernelClockFreq(uint32_t SDMMCxSource) |
| { |
| uint32_t sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SDMMC_KERNELCLKSOURCE(SDMMCxSource)); |
| |
| /* SDMMC1CLK kernel clock frequency */ |
| switch (LL_RCC_GetSDMMCKernelClockSource(SDMMCxSource)) |
| { |
| case LL_RCC_SDMMC1_KERNELCLKSOURCE_48CLK: /* 48MHz clock from internal multiplexor used as SDMMC1 clock source */ |
| sdmmc_frequency = LL_RCC_GetSDMMCClockFreq(LL_RCC_SDMMC1_CLKSOURCE); |
| break; |
| |
| case LL_RCC_SDMMC1_KERNELCLKSOURCE_PLLP: /* PLL "P" output (PLLSAI3CLK) clock used as SDMMC1 clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U) |
| { |
| sdmmc_frequency = RCC_PLL_GetFreqDomain_SAI(); |
| } |
| } |
| break; |
| |
| default: |
| sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| } |
| |
| return sdmmc_frequency; |
| } |
| #endif |
| |
| /** |
| * @brief Return SDMMCx clock frequency |
| * @param SDMMCxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SDMMC1_CLKSOURCE |
| * @retval SDMMC clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected |
| */ |
| uint32_t LL_RCC_GetSDMMCClockFreq(uint32_t SDMMCxSource) |
| { |
| uint32_t sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SDMMC_CLKSOURCE(SDMMCxSource)); |
| |
| /* SDMMC1CLK clock frequency */ |
| switch (LL_RCC_GetSDMMCClockSource(SDMMCxSource)) |
| { |
| #if defined(LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1) |
| case LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SDMMC1 clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() != 0U) |
| { |
| sdmmc_frequency = RCC_PLLSAI1_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| #endif |
| |
| case LL_RCC_SDMMC1_CLKSOURCE_PLL: /* PLL clock used as SDMMC1 clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U) |
| { |
| sdmmc_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| |
| #if defined(LL_RCC_SDMMC1_CLKSOURCE_MSI) |
| case LL_RCC_SDMMC1_CLKSOURCE_MSI: /* MSI clock used as SDMMC1 clock source */ |
| if (LL_RCC_MSI_IsReady() != 0U) |
| { |
| sdmmc_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| } |
| break; |
| #endif |
| |
| #if defined(RCC_HSI48_SUPPORT) |
| case LL_RCC_SDMMC1_CLKSOURCE_HSI48: /* HSI48 used as SDMMC1 clock source */ |
| if (LL_RCC_HSI48_IsReady() != 0U) |
| { |
| sdmmc_frequency = HSI48_VALUE; |
| } |
| break; |
| #else |
| case LL_RCC_SDMMC1_CLKSOURCE_NONE: /* No clock used as SDMMC1 clock source */ |
| #endif |
| default: |
| sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| } |
| |
| return sdmmc_frequency; |
| } |
| #endif /* SDMMC1 */ |
| |
| /** |
| * @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 (MSI) or PLL is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected |
| */ |
| 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)); |
| |
| /* RNGCLK clock frequency */ |
| switch (LL_RCC_GetRNGClockSource(RNGxSource)) |
| { |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| case LL_RCC_RNG_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as RNG clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() !=0U) |
| { |
| rng_frequency = RCC_PLLSAI1_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| #endif /* RCC_PLLSAI1_SUPPORT */ |
| |
| case LL_RCC_RNG_CLKSOURCE_PLL: /* PLL clock used as RNG clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U) |
| { |
| rng_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| |
| case LL_RCC_RNG_CLKSOURCE_MSI: /* MSI clock used as RNG clock source */ |
| if (LL_RCC_MSI_IsReady() != 0U) |
| { |
| rng_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| } |
| break; |
| |
| |
| #if defined(RCC_HSI48_SUPPORT) |
| case LL_RCC_RNG_CLKSOURCE_HSI48: /* HSI48 used as RNG clock source */ |
| if (LL_RCC_HSI48_IsReady() != 0U) |
| { |
| rng_frequency = HSI48_VALUE; |
| } |
| break; |
| #else |
| case LL_RCC_RNG_CLKSOURCE_NONE: /* No clock used as RNG clock source */ |
| #endif |
| default: |
| rng_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| |
| } |
| |
| return rng_frequency; |
| } |
| |
| |
| #if defined(USB_OTG_FS)||defined(USB) |
| /** |
| * @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 (MSI) or PLL is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected |
| */ |
| 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)); |
| |
| /* USBCLK clock frequency */ |
| switch (LL_RCC_GetUSBClockSource(USBxSource)) |
| { |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| case LL_RCC_USB_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as USB clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() != 0U) |
| { |
| usb_frequency = RCC_PLLSAI1_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| #endif /* RCC_PLLSAI1_SUPPORT */ |
| |
| case LL_RCC_USB_CLKSOURCE_PLL: /* PLL clock used as USB clock source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U) |
| { |
| usb_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| |
| case LL_RCC_USB_CLKSOURCE_MSI: /* MSI clock used as USB clock source */ |
| if (LL_RCC_MSI_IsReady() != 0U) |
| { |
| usb_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| } |
| break; |
| |
| #if defined(RCC_HSI48_SUPPORT) |
| case LL_RCC_USB_CLKSOURCE_HSI48: /* HSI48 used as USB clock source */ |
| if (LL_RCC_HSI48_IsReady() != 0U) |
| { |
| usb_frequency = HSI48_VALUE; |
| } |
| break; |
| #else |
| case LL_RCC_USB_CLKSOURCE_NONE: /* No clock used as USB clock source */ |
| #endif |
| default: |
| usb_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| } |
| |
| return usb_frequency; |
| } |
| #endif /* USB_OTG_FS || USB */ |
| |
| /** |
| * @brief Return ADCx clock frequency |
| * @param ADCxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_ADC_CLKSOURCE |
| * @retval ADC clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected |
| */ |
| uint32_t LL_RCC_GetADCClockFreq(uint32_t ADCxSource) |
| { |
| uint32_t adc_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_ADC_CLKSOURCE(ADCxSource)); |
| |
| /* ADCCLK clock frequency */ |
| switch (LL_RCC_GetADCClockSource(ADCxSource)) |
| { |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| case LL_RCC_ADC_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as ADC clock source */ |
| if (LL_RCC_PLLSAI1_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI1_IsEnabledDomain_ADC() != 0U) |
| { |
| adc_frequency = RCC_PLLSAI1_GetFreqDomain_ADC(); |
| } |
| } |
| break; |
| #endif /* RCC_PLLSAI1_SUPPORT */ |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) && defined(LL_RCC_ADC_CLKSOURCE_PLLSAI2) |
| case LL_RCC_ADC_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as ADC clock source */ |
| if (LL_RCC_PLLSAI2_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI2_IsEnabledDomain_ADC() != 0U) |
| { |
| adc_frequency = RCC_PLLSAI2_GetFreqDomain_ADC(); |
| } |
| } |
| break; |
| #endif /* RCC_PLLSAI2_SUPPORT && LL_RCC_ADC_CLKSOURCE_PLLSAI2 */ |
| |
| case LL_RCC_ADC_CLKSOURCE_SYSCLK: /* SYSCLK clock used as ADC clock source */ |
| adc_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_ADC_CLKSOURCE_NONE: /* No clock used as ADC clock source */ |
| default: |
| adc_frequency = LL_RCC_PERIPH_FREQUENCY_NA; |
| break; |
| } |
| |
| return adc_frequency; |
| } |
| |
| #if defined(SWPMI1) |
| /** |
| * @brief Return SWPMIx clock frequency |
| * @param SWPMIxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_SWPMI1_CLKSOURCE |
| * @retval SWPMI clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI) is not ready |
| */ |
| uint32_t LL_RCC_GetSWPMIClockFreq(uint32_t SWPMIxSource) |
| { |
| uint32_t swpmi_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_SWPMI_CLKSOURCE(SWPMIxSource)); |
| |
| /* SWPMI1CLK clock frequency */ |
| switch (LL_RCC_GetSWPMIClockSource(SWPMIxSource)) |
| { |
| case LL_RCC_SWPMI1_CLKSOURCE_HSI: /* SWPMI1 Clock is HSI Osc. */ |
| if (LL_RCC_HSI_IsReady()) |
| { |
| swpmi_frequency = HSI_VALUE; |
| } |
| break; |
| |
| case LL_RCC_SWPMI1_CLKSOURCE_PCLK1: /* SWPMI1 Clock is PCLK1 */ |
| swpmi_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return swpmi_frequency; |
| } |
| #endif /* SWPMI1 */ |
| |
| #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 |
| * @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)); |
| |
| /* 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 */ |
| dfsdm_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq())); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return dfsdm_frequency; |
| } |
| |
| #if defined(RCC_CCIPR2_DFSDM1SEL) |
| /** |
| * @brief Return DFSDMx Audio clock frequency |
| * @param DFSDMxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_DFSDM1_AUDIO_CLKSOURCE |
| * @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)); |
| |
| /* DFSDM1CLK clock frequency */ |
| switch (LL_RCC_GetDFSDMAudioClockSource(DFSDMxSource)) |
| { |
| case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_SAI1: /* SAI1 clock used as DFSDM1 audio clock */ |
| dfsdm_frequency = LL_RCC_GetSAIClockFreq(LL_RCC_SAI1_CLKSOURCE); |
| break; |
| |
| case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_MSI: /* MSI clock used as DFSDM1 audio clock */ |
| if (LL_RCC_MSI_IsReady() != 0U) |
| { |
| dfsdm_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| } |
| break; |
| |
| case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_HSI: /* HSI clock used as DFSDM1 audio clock */ |
| default: |
| if (LL_RCC_HSI_IsReady() != 0U) |
| { |
| dfsdm_frequency = HSI_VALUE; |
| } |
| break; |
| } |
| |
| return dfsdm_frequency; |
| } |
| #endif /* RCC_CCIPR2_DFSDM1SEL */ |
| #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 PLLSAI2 Osc. */ |
| if (LL_RCC_PLLSAI2_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI2_IsEnabledDomain_DSI() != 0U) |
| { |
| dsi_frequency = RCC_PLLSAI2_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_PLLSAI2_IsReady() != 0U) |
| { |
| if (LL_RCC_PLLSAI2_IsEnabledDomain_LTDC() != 0U) |
| { |
| ltdc_frequency = RCC_PLLSAI2_GetFreqDomain_LTDC(); |
| } |
| } |
| |
| return ltdc_frequency; |
| } |
| #endif /* LTDC */ |
| |
| #if defined(OCTOSPI1) |
| /** |
| * @brief Return OCTOSPI clock frequency |
| * @param OCTOSPIxSource This parameter can be one of the following values: |
| * @arg @ref LL_RCC_OCTOSPI_CLKSOURCE |
| * @retval OCTOSPI clock frequency (in Hz) |
| * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator PLLSAI is not ready |
| */ |
| uint32_t LL_RCC_GetOCTOSPIClockFreq(uint32_t OCTOSPIxSource) |
| { |
| uint32_t octospi_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| |
| /* Check parameter */ |
| assert_param(IS_LL_RCC_OCTOSPI_CLKSOURCE(OCTOSPIxSource)); |
| |
| /* OCTOSPI clock frequency */ |
| switch (LL_RCC_GetOCTOSPIClockSource(OCTOSPIxSource)) |
| { |
| case LL_RCC_OCTOSPI_CLKSOURCE_SYSCLK: /* OCTOSPI clock is SYSCLK */ |
| octospi_frequency = RCC_GetSystemClockFreq(); |
| break; |
| |
| case LL_RCC_OCTOSPI_CLKSOURCE_MSI: /* MSI clock used as OCTOSPI clock */ |
| if (LL_RCC_MSI_IsReady() != 0U) |
| { |
| octospi_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| } |
| break; |
| |
| case LL_RCC_OCTOSPI_CLKSOURCE_PLL: /* PLL clock used as OCTOSPI source */ |
| if (LL_RCC_PLL_IsReady() != 0U) |
| { |
| if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U) |
| { |
| octospi_frequency = RCC_PLL_GetFreqDomain_48M(); |
| } |
| } |
| break; |
| |
| default: |
| octospi_frequency = LL_RCC_PERIPH_FREQUENCY_NO; |
| break; |
| } |
| |
| return octospi_frequency; |
| } |
| #endif /* OCTOSPI1 */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup RCC_LL_Private_Functions |
| * @{ |
| */ |
| |
| /** |
| * @brief Return SYSTEM clock frequency |
| * @retval SYSTEM clock frequency (in Hz) |
| */ |
| static uint32_t RCC_GetSystemClockFreq(void) |
| { |
| uint32_t frequency; |
| |
| /* Get SYSCLK source -------------------------------------------------------*/ |
| switch (LL_RCC_GetSysClkSource()) |
| { |
| case LL_RCC_SYS_CLKSOURCE_STATUS_MSI: /* MSI used as system clock source */ |
| frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| 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(); |
| break; |
| |
| default: |
| frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| |
| return frequency; |
| } |
| |
| /** |
| * @brief Return HCLK clock frequency |
| * @param SYSCLK_Frequency SYSCLK clock frequency |
| * @retval HCLK clock frequency (in Hz) |
| */ |
| static 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) |
| */ |
| static 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) |
| */ |
| static 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 |
| * @retval PLL clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLL_GetFreqDomain_SYS(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN |
| SYSCLK = PLL_VCO / PLLR |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| 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 = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR()); |
| } |
| |
| #if defined(SAI1) |
| /** |
| * @brief Return PLL clock frequency used for SAI domain |
| * @retval PLL clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLL_GetFreqDomain_SAI(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE / PLLM) * PLLN |
| SAI Domain clock = PLL_VCO / PLLP |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| 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 = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLCLK_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLL_GetN(), LL_RCC_PLL_GetP()); |
| } |
| #endif /* SAI1 */ |
| |
| /** |
| * @brief Return PLL clock frequency used for 48 MHz domain |
| * @retval PLL clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLL_GetFreqDomain_48M(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN |
| 48M Domain clock = PLL_VCO / PLLQ |
| */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| 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 = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| 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) |
| */ |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_DSI(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */ |
| /* DSICLK = PLLSAI2_VCO / PLLSAI2R */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| |
| return __LL_RCC_CALC_PLLSAI2_DSI_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(), |
| LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR()); |
| } |
| #endif /* DSI */ |
| |
| #if defined(RCC_PLLSAI1_SUPPORT) |
| /** |
| * @brief Return PLLSAI1 clock frequency used for SAI domain |
| * @retval PLLSAI1 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_SAI(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT) |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */ |
| #else |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */ |
| #endif |
| /* SAI Domain clock = PLLSAI1_VCO / PLLSAI1P */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI1_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetP()); |
| } |
| |
| /** |
| * @brief Return PLLSAI1 clock frequency used for 48Mhz domain |
| * @retval PLLSAI1 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_48M(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT) |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */ |
| #else |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */ |
| #endif |
| /* 48M Domain clock = PLLSAI1_VCO / PLLSAI1Q */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI1_48M_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetQ()); |
| } |
| |
| /** |
| * @brief Return PLLSAI1 clock frequency used for ADC domain |
| * @retval PLLSAI1 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI1_GetFreqDomain_ADC(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT) |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */ |
| #else |
| /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */ |
| #endif |
| /* 48M Domain clock = PLLSAI1_VCO / PLLSAI1R */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI1_ADC_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetR()); |
| } |
| #endif /* RCC_PLLSAI1_SUPPORT */ |
| |
| #if defined(RCC_PLLSAI2_SUPPORT) |
| /** |
| * @brief Return PLLSAI2 clock frequency used for SAI domain |
| * @retval PLLSAI2 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_SAI(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT) |
| /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */ |
| #else |
| /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI2N */ |
| #endif |
| /* SAI Domain clock = PLLSAI2_VCO / PLLSAI2P */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT) |
| return __LL_RCC_CALC_PLLSAI2_SAI_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(), |
| LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetP()); |
| #else |
| return __LL_RCC_CALC_PLLSAI2_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetP()); |
| #endif |
| } |
| |
| #if defined(LTDC) |
| /** |
| * @brief Return PLLSAI2 clock frequency used for LTDC domain |
| * @retval PLLSAI2 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_LTDC(void) |
| { |
| uint32_t pllinputfreq, pllsource; |
| |
| /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */ |
| /* LTDC Domain clock = (PLLSAI2_VCO / PLLSAI2R) / PLLSAI2DIVR */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| |
| return __LL_RCC_CALC_PLLSAI2_LTDC_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(), |
| LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR(), LL_RCC_PLLSAI2_GetDIVR()); |
| } |
| |
| #else |
| |
| /** |
| * @brief Return PLLSAI2 clock frequency used for ADC domain |
| * @retval PLLSAI2 clock frequency (in Hz) |
| */ |
| static uint32_t RCC_PLLSAI2_GetFreqDomain_ADC(void) |
| { |
| uint32_t pllinputfreq = 0U, pllsource = 0U; |
| |
| /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI2N */ |
| /* 48M Domain clock = PLLSAI2_VCO / PLLSAI2R */ |
| pllsource = LL_RCC_PLL_GetMainSource(); |
| |
| switch (pllsource) |
| { |
| case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */ |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */ |
| pllinputfreq = HSI_VALUE; |
| break; |
| |
| case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */ |
| pllinputfreq = HSE_VALUE; |
| break; |
| |
| default: |
| pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(), |
| ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ? |
| LL_RCC_MSI_GetRange() : |
| LL_RCC_MSI_GetRangeAfterStandby())); |
| break; |
| } |
| return __LL_RCC_CALC_PLLSAI2_ADC_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(), |
| LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR()); |
| } |
| #endif /* LTDC */ |
| |
| #endif /*RCC_PLLSAI2_SUPPORT*/ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* defined(RCC) */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* USE_FULL_LL_DRIVER */ |
| |
