Return the frequencies of different on chip clocks; System, AHB, APB1, APB2, APB3 and APB4 buses clocks. More...

Functions
void	LL_RCC_GetSystemClocksFreq (LL_RCC_ClocksTypeDef *RCC_Clocks)
	Return the frequencies of different on chip clocks; System, AHB, APB1, APB2, APB3 and APB4 buses clocks.
void	LL_RCC_GetPLL1ClockFreq (LL_PLL_ClocksTypeDef *PLL_Clocks)
	Return PLL1 clocks frequencies.
void	LL_RCC_GetPLL2ClockFreq (LL_PLL_ClocksTypeDef *PLL_Clocks)
	Return PLL2 clocks frequencies.
void	LL_RCC_GetPLL3ClockFreq (LL_PLL_ClocksTypeDef *PLL_Clocks)
	Return PLL3 clocks frequencies.
uint32_t	LL_RCC_CalcPLLClockFreq (uint32_t PLLInputFreq, uint32_t M, uint32_t N, uint32_t FRACN, uint32_t PQR)
	Helper function to calculate the PLL frequency output.
uint32_t	LL_RCC_GetUSARTClockFreq (uint32_t USARTxSource)
	Return USARTx clock frequency.
uint32_t	LL_RCC_GetLPUARTClockFreq (uint32_t LPUARTxSource)
	Return LPUART clock frequency.
uint32_t	LL_RCC_GetI2CClockFreq (uint32_t I2CxSource)
	Return I2Cx clock frequency.
uint32_t	LL_RCC_GetLPTIMClockFreq (uint32_t LPTIMxSource)
	Return LPTIMx clock frequency.
uint32_t	LL_RCC_GetSAIClockFreq (uint32_t SAIxSource)
	Return SAIx clock frequency.
uint32_t	LL_RCC_GetADCClockFreq (uint32_t ADCxSource)
	Return ADC clock frequency.
uint32_t	LL_RCC_GetSDMMCClockFreq (uint32_t SDMMCxSource)
	Return SDMMC clock frequency.
uint32_t	LL_RCC_GetRNGClockFreq (uint32_t RNGxSource)
	Return RNG clock frequency.
uint32_t	LL_RCC_GetCECClockFreq (uint32_t CECxSource)
	Return CEC clock frequency.
uint32_t	LL_RCC_GetUSBClockFreq (uint32_t USBxSource)
	Return USB clock frequency.
uint32_t	LL_RCC_GetDFSDMClockFreq (uint32_t DFSDMxSource)
	Return DFSDM clock frequency.
uint32_t	LL_RCC_GetSPDIFClockFreq (uint32_t SPDIFxSource)
	Return SPDIF clock frequency.
uint32_t	LL_RCC_GetSPIClockFreq (uint32_t SPIxSource)
	Return SPIx clock frequency.
uint32_t	LL_RCC_GetSWPClockFreq (uint32_t SWPxSource)
	Return SWP clock frequency.
uint32_t	LL_RCC_GetFDCANClockFreq (uint32_t FDCANxSource)
	Return FDCAN clock frequency.
uint32_t	LL_RCC_GetFMCClockFreq (uint32_t FMCxSource)
	Return FMC clock frequency.
uint32_t	LL_RCC_GetOSPIClockFreq (uint32_t OSPIxSource)
	Return OSPI clock frequency.
uint32_t	LL_RCC_GetCLKPClockFreq (uint32_t CLKPxSource)
	Return CLKP clock frequency.

Detailed Description

Return the frequencies of different on chip clocks; System, AHB, APB1, APB2, APB3 and APB4 buses clocks.

and different peripheral clocks available on the device.

Note:: If SYSCLK source is HSI, function returns values based on HSI_VALUE(*); If SYSCLK source is HSE, function returns values based on HSE_VALUE(**); If SYSCLK source is CSI, function returns values based on CSI_VALUE(***); If SYSCLK source is PLL, function returns values based on HSE_VALUE(**) or HSI_VALUE(*) multiplied/divided by the PLL factors.; (*) HSI_VALUE is a constant defined in header file (default value 64 MHz) divider by HSIDIV, but the real value may vary depending on on the variations in voltage and temperature.; (**) HSE_VALUE is a constant defined in header 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.; (***) CSI_VALUE is a constant defined in header file (default value 4 MHz) but the real value may vary depending on the variations in voltage and temperature.; The result of this function could be incorrect when using fractional value for HSE crystal.; This function can be used by the user application to compute the baud-rate for the communication peripherals or configure other parameters.

Function Documentation

uint32_t LL_RCC_CalcPLLClockFreq	(	uint32_t	PLLInputFreq,
		uint32_t	M,
		uint32_t	N,
		uint32_t	FRACN,
		uint32_t	PQR
	)

Helper function to calculate the PLL frequency output.

Note:: ex: LL_RCC_CalcPLLClockFreq (HSE_VALUE, LL_RCC_PLL1_GetM (), LL_RCC_PLL1_GetN (), LL_RCC_PLL1_GetFRACN (), LL_RCC_PLL1_GetP ());

Parameters:

PLLInputFreq	PLL Input frequency (based on HSE/(HSI/HSIDIV)/CSI)
M	Between 1 and 63
N	Between 4 and 512
FRACN	Between 0 and 0x1FFF
PQR	VCO output divider (P, Q or R) Between 1 and 128, except for PLL1P Odd value not allowed

Return values:

PLL1	clock frequency (in Hz)

Definition at line 513 of file stm32h7xx_ll_rcc.c.

Referenced by LL_PLL_ConfigSystemClock_HSE(), LL_PLL_ConfigSystemClock_HSI(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), and UTILS_GetPLLOutputFrequency().

uint32_t LL_RCC_GetADCClockFreq ( uint32_t ADCxSource )

Return ADC clock frequency.

Parameters:

ADCxSource

This parameter can be one of the following values:

LL_RCC_ADC_CLKSOURCE

Return values:

ADC	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 928 of file stm32h7xx_ll_rcc.c.

References LL_RCC_ADC_CLKSOURCE_CLKP, LL_RCC_ADC_CLKSOURCE_PLL2P, LL_RCC_ADC_CLKSOURCE_PLL3R, LL_RCC_CLKP_CLKSOURCE, LL_RCC_GetADCClockSource(), LL_RCC_GetCLKPClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LL_PLL_ClocksTypeDef::PLL_P_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

uint32_t LL_RCC_GetCECClockFreq ( uint32_t CECxSource )

Return CEC clock frequency.

Parameters:

CECxSource

This parameter can be one of the following values:

LL_RCC_RNG_CLKSOURCE

Return values:

CEC	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1059 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, LL_RCC_CEC_CLKSOURCE_CSI_DIV122, LL_RCC_CEC_CLKSOURCE_LSE, LL_RCC_CEC_CLKSOURCE_LSI, LL_RCC_CSI_IsReady(), LL_RCC_GetCECClockSource(), LL_RCC_LSE_IsReady(), LL_RCC_LSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LSE_VALUE, and LSI_VALUE.

uint32_t LL_RCC_GetCLKPClockFreq ( uint32_t CLKPxSource )

Return CLKP clock frequency.

Parameters:

CLKPxSource

This parameter can be one of the following values:

LL_RCC_CLKP_CLKSOURCE

Return values:

CLKP	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1631 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, HSE_VALUE, HSI_VALUE, LL_RCC_CLKP_CLKSOURCE_CSI, LL_RCC_CLKP_CLKSOURCE_HSE, LL_RCC_CLKP_CLKSOURCE_HSI, LL_RCC_CSI_IsReady(), LL_RCC_GetCLKPClockSource(), LL_RCC_HSE_IsReady(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), and LL_RCC_PERIPH_FREQUENCY_NO.

Referenced by LL_RCC_GetADCClockFreq(), LL_RCC_GetFMCClockFreq(), LL_RCC_GetLPTIMClockFreq(), LL_RCC_GetOSPIClockFreq(), LL_RCC_GetSAIClockFreq(), and LL_RCC_GetSPIClockFreq().

uint32_t LL_RCC_GetDFSDMClockFreq ( uint32_t DFSDMxSource )

Return DFSDM clock frequency.

Parameters:

DFSDMxSource

This parameter can be one of the following values:

LL_RCC_DFSDM1_CLKSOURCE

Return values:

DFSDM

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1147 of file stm32h7xx_ll_rcc.c.

References LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_DFSDM1_CLKSOURCE_PCLK2, LL_RCC_DFSDM1_CLKSOURCE_SYSCLK, LL_RCC_GetDFSDMClockSource(), LL_RCC_GetSysPrescaler(), LL_RCC_PERIPH_FREQUENCY_NO, RCC_GetHCLKClockFreq(), RCC_GetPCLK2ClockFreq(), and RCC_GetSystemClockFreq().

uint32_t LL_RCC_GetFDCANClockFreq ( uint32_t FDCANxSource )

Return FDCAN clock frequency.

Parameters:

FDCANxSource

This parameter can be one of the following values:

LL_RCC_FDCAN_CLKSOURCE

Return values:

FDCAN

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1443 of file stm32h7xx_ll_rcc.c.

References HSE_VALUE, LL_RCC_FDCAN_CLKSOURCE_HSE, LL_RCC_FDCAN_CLKSOURCE_PLL1Q, LL_RCC_FDCAN_CLKSOURCE_PLL2Q, LL_RCC_GetFDCANClockSource(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_HSE_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), and LL_PLL_ClocksTypeDef::PLL_Q_Frequency.

uint32_t LL_RCC_GetFMCClockFreq ( uint32_t FMCxSource )

Return FMC clock frequency.

Parameters:

FMCxSource

This parameter can be one of the following values:

LL_RCC_FMC_CLKSOURCE

Return values:

FMC	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1488 of file stm32h7xx_ll_rcc.c.

References LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CLKP_CLKSOURCE, LL_RCC_FMC_CLKSOURCE_CLKP, LL_RCC_FMC_CLKSOURCE_HCLK, LL_RCC_FMC_CLKSOURCE_PLL1Q, LL_RCC_FMC_CLKSOURCE_PLL2R, LL_RCC_GetCLKPClockFreq(), LL_RCC_GetFMCClockSource(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetSysPrescaler(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_PLL_ClocksTypeDef::PLL_Q_Frequency, LL_PLL_ClocksTypeDef::PLL_R_Frequency, RCC_GetHCLKClockFreq(), and RCC_GetSystemClockFreq().

uint32_t LL_RCC_GetI2CClockFreq ( uint32_t I2CxSource )

Return I2Cx clock frequency.

Parameters:

I2CxSource

This parameter can be one of the following values:

Return values:

I2C	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 671 of file stm32h7xx_ll_rcc.c.

References assert_param, CSI_VALUE, HSI_VALUE, IS_LL_RCC_I2C_CLKSOURCE, LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CSI_IsReady(), LL_RCC_GetI2CClockSource(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSysPrescaler(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_I2C123_CLKSOURCE_CSI, LL_RCC_I2C123_CLKSOURCE_HSI, LL_RCC_I2C123_CLKSOURCE_PCLK1, LL_RCC_I2C123_CLKSOURCE_PLL3R, LL_RCC_I2C4_CLKSOURCE_CSI, LL_RCC_I2C4_CLKSOURCE_HSI, LL_RCC_I2C4_CLKSOURCE_PCLK4, LL_RCC_I2C4_CLKSOURCE_PLL3R, LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL3_IsReady(), LL_PLL_ClocksTypeDef::PLL_R_Frequency, RCC_GetHCLKClockFreq(), RCC_GetPCLK1ClockFreq(), RCC_GetPCLK4ClockFreq(), and RCC_GetSystemClockFreq().

uint32_t LL_RCC_GetLPTIMClockFreq ( uint32_t LPTIMxSource )

Return LPTIMx clock frequency.

Parameters:

LPTIMxSource

This parameter can be one of the following values:

Return values:

LPTIM

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 731 of file stm32h7xx_ll_rcc.c.

References assert_param, IS_LL_RCC_LPTIM_CLKSOURCE, LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CLKP_CLKSOURCE, LL_RCC_GetCLKPClockFreq(), LL_RCC_GetLPTIMClockSource(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSysPrescaler(), LL_RCC_LPTIM1_CLKSOURCE_CLKP, LL_RCC_LPTIM1_CLKSOURCE_LSE, LL_RCC_LPTIM1_CLKSOURCE_LSI, LL_RCC_LPTIM1_CLKSOURCE_PCLK1, LL_RCC_LPTIM1_CLKSOURCE_PLL2P, LL_RCC_LPTIM1_CLKSOURCE_PLL3R, LL_RCC_LPTIM2_CLKSOURCE_CLKP, LL_RCC_LPTIM2_CLKSOURCE_LSE, LL_RCC_LPTIM2_CLKSOURCE_LSI, LL_RCC_LPTIM2_CLKSOURCE_PCLK4, LL_RCC_LPTIM2_CLKSOURCE_PLL2P, LL_RCC_LPTIM2_CLKSOURCE_PLL3R, LL_RCC_LPTIM345_CLKSOURCE_CLKP, LL_RCC_LPTIM345_CLKSOURCE_LSE, LL_RCC_LPTIM345_CLKSOURCE_LSI, LL_RCC_LPTIM345_CLKSOURCE_PCLK4, LL_RCC_LPTIM345_CLKSOURCE_PLL2P, LL_RCC_LPTIM345_CLKSOURCE_PLL3R, LL_RCC_LSE_IsReady(), LL_RCC_LSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LSE_VALUE, LSI_VALUE, LL_PLL_ClocksTypeDef::PLL_P_Frequency, LL_PLL_ClocksTypeDef::PLL_R_Frequency, RCC_GetHCLKClockFreq(), RCC_GetPCLK1ClockFreq(), RCC_GetPCLK4ClockFreq(), and RCC_GetSystemClockFreq().

uint32_t LL_RCC_GetLPUARTClockFreq ( uint32_t LPUARTxSource )

Return LPUART clock frequency.

Parameters:

LPUARTxSource

This parameter can be one of the following values:

LL_RCC_LPUART1_CLKSOURCE

Return values:

LPUART

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 607 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, HSI_VALUE, LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CSI_IsReady(), LL_RCC_GetLPUARTClockSource(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSysPrescaler(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_LPUART1_CLKSOURCE_CSI, LL_RCC_LPUART1_CLKSOURCE_HSI, LL_RCC_LPUART1_CLKSOURCE_LSE, LL_RCC_LPUART1_CLKSOURCE_PCLK4, LL_RCC_LPUART1_CLKSOURCE_PLL2Q, LL_RCC_LPUART1_CLKSOURCE_PLL3Q, LL_RCC_LSE_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LSE_VALUE, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, RCC_GetHCLKClockFreq(), RCC_GetPCLK4ClockFreq(), and RCC_GetSystemClockFreq().

Referenced by LL_LPUART_Init().

uint32_t LL_RCC_GetOSPIClockFreq ( uint32_t OSPIxSource )

Return OSPI clock frequency.

Parameters:

OSPIxSource

This parameter can be one of the following values:

LL_RCC_OSPI_CLKSOURCE

Return values:

OSPI	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1584 of file stm32h7xx_ll_rcc.c.

References LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CLKP_CLKSOURCE, LL_RCC_GetCLKPClockFreq(), LL_RCC_GetOSPIClockSource(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetSysPrescaler(), LL_RCC_OSPI_CLKSOURCE_CLKP, LL_RCC_OSPI_CLKSOURCE_HCLK, LL_RCC_OSPI_CLKSOURCE_PLL1Q, LL_RCC_OSPI_CLKSOURCE_PLL2R, LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_PLL_ClocksTypeDef::PLL_Q_Frequency, LL_PLL_ClocksTypeDef::PLL_R_Frequency, RCC_GetHCLKClockFreq(), and RCC_GetSystemClockFreq().

void LL_RCC_GetPLL1ClockFreq ( LL_PLL_ClocksTypeDef * PLL_Clocks )

Return PLL1 clocks frequencies.

Note:: LL_RCC_PERIPH_FREQUENCY_NO returned for non activated output or oscillator not ready

Return values:

None

Definition at line 284 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, HSE_VALUE, HSI_VALUE, LL_RCC_CalcPLLClockFreq(), LL_RCC_CSI_IsReady(), LL_RCC_HSE_IsReady(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_GetFRACN(), LL_RCC_PLL1_GetM(), LL_RCC_PLL1_GetN(), LL_RCC_PLL1_GetP(), LL_RCC_PLL1_GetQ(), LL_RCC_PLL1_GetR(), LL_RCC_PLL1FRACN_IsEnabled(), LL_RCC_PLL1P_IsEnabled(), LL_RCC_PLL1Q_IsEnabled(), LL_RCC_PLL1R_IsEnabled(), LL_RCC_PLL_GetSource(), LL_RCC_PLLSOURCE_CSI, LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLSOURCE_HSI, LL_RCC_PLLSOURCE_NONE, LL_PLL_ClocksTypeDef::PLL_P_Frequency, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

Referenced by LL_RCC_GetFDCANClockFreq(), LL_RCC_GetFMCClockFreq(), LL_RCC_GetOSPIClockFreq(), LL_RCC_GetRNGClockFreq(), LL_RCC_GetSAIClockFreq(), LL_RCC_GetSDMMCClockFreq(), LL_RCC_GetSPDIFClockFreq(), LL_RCC_GetSPIClockFreq(), LL_RCC_GetUSBClockFreq(), and RCC_GetSystemClockFreq().

void LL_RCC_GetPLL2ClockFreq ( LL_PLL_ClocksTypeDef * PLL_Clocks )

Return PLL2 clocks frequencies.

Note:: LL_RCC_PERIPH_FREQUENCY_NO returned for non activated output or oscillator not ready

Return values:

None

Definition at line 358 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, HSE_VALUE, HSI_VALUE, LL_RCC_CalcPLLClockFreq(), LL_RCC_CSI_IsReady(), LL_RCC_HSE_IsReady(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL2_GetFRACN(), LL_RCC_PLL2_GetM(), LL_RCC_PLL2_GetN(), LL_RCC_PLL2_GetP(), LL_RCC_PLL2_GetQ(), LL_RCC_PLL2_GetR(), LL_RCC_PLL2FRACN_IsEnabled(), LL_RCC_PLL2P_IsEnabled(), LL_RCC_PLL2Q_IsEnabled(), LL_RCC_PLL2R_IsEnabled(), LL_RCC_PLL_GetSource(), LL_RCC_PLLSOURCE_CSI, LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLSOURCE_HSI, LL_RCC_PLLSOURCE_NONE, LL_PLL_ClocksTypeDef::PLL_P_Frequency, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

Referenced by LL_RCC_GetADCClockFreq(), LL_RCC_GetFDCANClockFreq(), LL_RCC_GetFMCClockFreq(), LL_RCC_GetLPTIMClockFreq(), LL_RCC_GetLPUARTClockFreq(), LL_RCC_GetOSPIClockFreq(), LL_RCC_GetSAIClockFreq(), LL_RCC_GetSDMMCClockFreq(), LL_RCC_GetSPDIFClockFreq(), LL_RCC_GetSPIClockFreq(), and LL_RCC_GetUSARTClockFreq().

void LL_RCC_GetPLL3ClockFreq ( LL_PLL_ClocksTypeDef * PLL_Clocks )

Return PLL3 clocks frequencies.

Note:: LL_RCC_PERIPH_FREQUENCY_NO returned for non activated output or oscillator not ready

Return values:

None

Definition at line 432 of file stm32h7xx_ll_rcc.c.

References CSI_VALUE, HSE_VALUE, HSI_VALUE, LL_RCC_CalcPLLClockFreq(), LL_RCC_CSI_IsReady(), LL_RCC_HSE_IsReady(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL3_GetFRACN(), LL_RCC_PLL3_GetM(), LL_RCC_PLL3_GetN(), LL_RCC_PLL3_GetP(), LL_RCC_PLL3_GetQ(), LL_RCC_PLL3_GetR(), LL_RCC_PLL3FRACN_IsEnabled(), LL_RCC_PLL3P_IsEnabled(), LL_RCC_PLL3Q_IsEnabled(), LL_RCC_PLL3R_IsEnabled(), LL_RCC_PLL_GetSource(), LL_RCC_PLLSOURCE_CSI, LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLSOURCE_HSI, LL_RCC_PLLSOURCE_NONE, LL_PLL_ClocksTypeDef::PLL_P_Frequency, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

Referenced by LL_RCC_GetADCClockFreq(), LL_RCC_GetI2CClockFreq(), LL_RCC_GetLPTIMClockFreq(), LL_RCC_GetLPUARTClockFreq(), LL_RCC_GetSAIClockFreq(), LL_RCC_GetSPDIFClockFreq(), LL_RCC_GetSPIClockFreq(), LL_RCC_GetUSARTClockFreq(), and LL_RCC_GetUSBClockFreq().

uint32_t LL_RCC_GetRNGClockFreq ( uint32_t RNGxSource )

Return RNG clock frequency.

Parameters:

RNGxSource

This parameter can be one of the following values:

LL_RCC_RNG_CLKSOURCE

Return values:

RNG	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1008 of file stm32h7xx_ll_rcc.c.

References LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetRNGClockSource(), LL_RCC_HSI48_IsReady(), LL_RCC_LSE_IsReady(), LL_RCC_LSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_RNG_CLKSOURCE_HSI48, LL_RCC_RNG_CLKSOURCE_LSE, LL_RCC_RNG_CLKSOURCE_LSI, LL_RCC_RNG_CLKSOURCE_PLL1Q, LSE_VALUE, LSI_VALUE, and LL_PLL_ClocksTypeDef::PLL_Q_Frequency.

uint32_t LL_RCC_GetSAIClockFreq ( uint32_t SAIxSource )

Return SAIx clock frequency.

Parameters:

SAIxSource

This parameter can be one of the following values:

LL_RCC_SAI1_CLKSOURCE
LL_RCC_SAI23_CLKSOURCE (*)
LL_RCC_SAI2A_CLKSOURCE (*)
LL_RCC_SAI2B_CLKSOURCE (*)
LL_RCC_SAI4A_CLKSOURCE (*)
LL_RCC_SAI4B_CLKSOURCE (*)

Return values:

SAI	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

(*) : Available on some STM32H7 lines only.

Definition at line 816 of file stm32h7xx_ll_rcc.c.

References assert_param, EXTERNAL_CLOCK_VALUE, IS_LL_RCC_SAI_CLKSOURCE, LL_RCC_CLKP_CLKSOURCE, LL_RCC_GetCLKPClockFreq(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSAIClockSource(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LL_RCC_SAI1_CLKSOURCE_CLKP, LL_RCC_SAI1_CLKSOURCE_I2S_CKIN, LL_RCC_SAI1_CLKSOURCE_PLL1Q, LL_RCC_SAI1_CLKSOURCE_PLL2P, LL_RCC_SAI1_CLKSOURCE_PLL3P, LL_RCC_SAI4A_CLKSOURCE_CLKP, LL_RCC_SAI4A_CLKSOURCE_I2S_CKIN, LL_RCC_SAI4A_CLKSOURCE_PLL1Q, LL_RCC_SAI4A_CLKSOURCE_PLL2P, LL_RCC_SAI4A_CLKSOURCE_PLL3P, LL_RCC_SAI4B_CLKSOURCE_CLKP, LL_RCC_SAI4B_CLKSOURCE_I2S_CKIN, LL_RCC_SAI4B_CLKSOURCE_PLL1Q, LL_RCC_SAI4B_CLKSOURCE_PLL2P, LL_RCC_SAI4B_CLKSOURCE_PLL3P, LL_PLL_ClocksTypeDef::PLL_P_Frequency, and LL_PLL_ClocksTypeDef::PLL_Q_Frequency.

uint32_t LL_RCC_GetSDMMCClockFreq ( uint32_t SDMMCxSource )

Return SDMMC clock frequency.

Parameters:

SDMMCxSource

This parameter can be one of the following values:

LL_RCC_SDMMC_CLKSOURCE

Return values:

SDMMC

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 970 of file stm32h7xx_ll_rcc.c.

References LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetSDMMCClockSource(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_RCC_SDMMC_CLKSOURCE_PLL1Q, LL_RCC_SDMMC_CLKSOURCE_PLL2R, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

uint32_t LL_RCC_GetSPDIFClockFreq ( uint32_t SPDIFxSource )

Return SPDIF clock frequency.

Parameters:

SPDIFxSource

This parameter can be one of the following values:

LL_RCC_SPDIF_CLKSOURCE

Return values:

SPDIF

clock frequency (in Hz)

LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1246 of file stm32h7xx_ll_rcc.c.

References HSI_VALUE, LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSPDIFClockSource(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LL_RCC_SPDIF_CLKSOURCE_HSI, LL_RCC_SPDIF_CLKSOURCE_PLL1Q, LL_RCC_SPDIF_CLKSOURCE_PLL2R, LL_RCC_SPDIF_CLKSOURCE_PLL3R, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, and LL_PLL_ClocksTypeDef::PLL_R_Frequency.

uint32_t LL_RCC_GetSPIClockFreq ( uint32_t SPIxSource )

Return SPIx clock frequency.

Parameters:

SPIxSource

This parameter can be one of the following values:

Return values:

SPI	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1301 of file stm32h7xx_ll_rcc.c.

References assert_param, CSI_VALUE, EXTERNAL_CLOCK_VALUE, HSE_VALUE, HSI_VALUE, IS_LL_RCC_SPI_CLKSOURCE, LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_CLKP_CLKSOURCE, LL_RCC_CSI_IsReady(), LL_RCC_GetCLKPClockFreq(), LL_RCC_GetPLL1ClockFreq(), LL_RCC_GetPLL2ClockFreq(), LL_RCC_GetPLL3ClockFreq(), LL_RCC_GetSPIClockSource(), LL_RCC_GetSysPrescaler(), LL_RCC_HSE_IsReady(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_PLL1_IsReady(), LL_RCC_PLL2_IsReady(), LL_RCC_PLL3_IsReady(), LL_RCC_SPI123_CLKSOURCE_CLKP, LL_RCC_SPI123_CLKSOURCE_I2S_CKIN, LL_RCC_SPI123_CLKSOURCE_PLL1Q, LL_RCC_SPI123_CLKSOURCE_PLL2P, LL_RCC_SPI123_CLKSOURCE_PLL3P, LL_RCC_SPI45_CLKSOURCE_CSI, LL_RCC_SPI45_CLKSOURCE_HSE, LL_RCC_SPI45_CLKSOURCE_HSI, LL_RCC_SPI45_CLKSOURCE_PCLK2, LL_RCC_SPI45_CLKSOURCE_PLL2Q, LL_RCC_SPI45_CLKSOURCE_PLL3Q, LL_RCC_SPI6_CLKSOURCE_CSI, LL_RCC_SPI6_CLKSOURCE_HSE, LL_RCC_SPI6_CLKSOURCE_HSI, LL_RCC_SPI6_CLKSOURCE_PCLK4, LL_RCC_SPI6_CLKSOURCE_PLL2Q, LL_RCC_SPI6_CLKSOURCE_PLL3Q, LL_PLL_ClocksTypeDef::PLL_P_Frequency, LL_PLL_ClocksTypeDef::PLL_Q_Frequency, RCC_GetHCLKClockFreq(), RCC_GetPCLK2ClockFreq(), RCC_GetPCLK4ClockFreq(), and RCC_GetSystemClockFreq().

Referenced by LL_I2S_Init().

uint32_t LL_RCC_GetSWPClockFreq ( uint32_t SWPxSource )

Return SWP clock frequency.

Parameters:

SWPxSource

This parameter can be one of the following values:

LL_RCC_SWP_CLKSOURCE

Return values:

SWP	clock frequency (in Hz) LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready

Definition at line 1411 of file stm32h7xx_ll_rcc.c.

References HSI_VALUE, LL_RCC_CALC_SYSCLK_FREQ, LL_RCC_GetSWPClockSource(), LL_RCC_GetSysPrescaler(), LL_RCC_HSI_GetDivider(), LL_RCC_HSI_IsReady(), LL_RCC_PERIPH_FREQUENCY_NO, LL_RCC_SWP_CLKSOURCE_HSI, LL_RCC_SWP_CLKSOURCE_PCLK1, RCC_GetHCLKClockFreq(), RCC_GetPCLK1ClockFreq(), and RCC_GetSystemClockFreq().

void LL_RCC_GetSystemClocksFreq ( LL_RCC_ClocksTypeDef * RCC_Clocks )

Return the frequencies of different on chip clocks; System, AHB, APB1, APB2, APB3 and APB4 buses clocks.

Note:: Each time SYSCLK, HCLK, PCLK1, PCLK2, PCLK3 and/or PCLK4 clock changes, this function must be called to update structure fields. Otherwise, any configuration based on this function will be incorrect.

Parameters:

RCC_Clocks pointer to a LL_RCC_ClocksTypeDef structure which will hold the clocks frequencies

Return values:

None

Definition at line 258 of file stm32h7xx_ll_rcc.c.

References LL_RCC_ClocksTypeDef::HCLK_Frequency, LL_RCC_ClocksTypeDef::PCLK1_Frequency, LL_RCC_ClocksTypeDef::PCLK2_Frequency, LL_RCC_ClocksTypeDef::PCLK3_Frequency, LL_RCC_ClocksTypeDef::PCLK4_Frequency, RCC_GetHCLKClockFreq(), RCC_GetPCLK1ClockFreq(), RCC_GetPCLK2ClockFreq(), RCC_GetPCLK3ClockFreq(), RCC_GetPCLK4ClockFreq(), RCC_GetSystemClockFreq(), and LL_RCC_ClocksTypeDef::SYSCLK_Frequency.