stm32h7xx_ll_rcc.c File Reference

RCC LL module driver. More...

#include "stm32h7xx_ll_rcc.h"
#include "stm32h7xx_ll_bus.h"

Go to the source code of this file.

Defines
#define	assert_param(expr)   ((void)0U)
#define	IS_LL_RCC_USART_CLKSOURCE(__VALUE__)
#define	IS_LL_RCC_I2C_CLKSOURCE(__VALUE__)
#define	IS_LL_RCC_LPTIM_CLKSOURCE(__VALUE__)
#define	IS_LL_RCC_SAI_CLKSOURCE(__VALUE__)
#define	IS_LL_RCC_SPI_CLKSOURCE(__VALUE__)
Functions
static uint32_t	RCC_GetSystemClockFreq (void)
	Return SYSTEM clock frequency.
static uint32_t	RCC_GetHCLKClockFreq (uint32_t SYSCLK_Frequency)
	Return HCLK clock frequency.
static uint32_t	RCC_GetPCLK1ClockFreq (uint32_t HCLK_Frequency)
	Return PCLK1 clock frequency.
static uint32_t	RCC_GetPCLK2ClockFreq (uint32_t HCLK_Frequency)
	Return PCLK2 clock frequency.
static uint32_t	RCC_GetPCLK3ClockFreq (uint32_t HCLK_Frequency)
	Return PCLK3 clock frequency.
static uint32_t	RCC_GetPCLK4ClockFreq (uint32_t HCLK_Frequency)
	Return PCLK4 clock frequency.
void	LL_RCC_DeInit (void)
	Resets the RCC clock configuration to the default reset state.
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.
Variables
const uint8_t	LL_RCC_PrescTable [16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9}

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Detailed Description

RCC LL module driver.

Author:

MCD Application Team

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.

Definition in file stm32h7xx_ll_rcc.c.

---

Define Documentation

#define assert_param

(

expr

)

((void)0U)

Definition at line 25 of file stm32h7xx_ll_rcc.c.

Referenced by LL_RCC_GetI2CClockFreq(), LL_RCC_GetLPTIMClockFreq(), LL_RCC_GetSAIClockFreq(), LL_RCC_GetSPIClockFreq(), and LL_RCC_GetUSARTClockFreq().