stm32f1xx_ll_utils.c File Reference

UTILS LL module driver. More...

#include "stm32f1xx_ll_rcc.h"
#include "stm32f1xx_ll_utils.h"
#include "stm32f1xx_ll_system.h"

Go to the source code of this file.

Defines
#define	assert_param(expr)   ((void)0U)
#define	UTILS_PLL_OUTPUT_MAX   RCC_MAX_FREQUENCY
#define	UTILS_PLL2_OUTPUT_MAX   RCC_MAX_FREQUENCY
#define	UTILS_HSE_FREQUENCY_MIN   RCC_HSE_MIN
#define	UTILS_HSE_FREQUENCY_MAX   RCC_HSE_MAX
#define	UTILS_LATENCY1_FREQ   24000000U
#define	UTILS_LATENCY2_FREQ   48000000U
#define	IS_LL_UTILS_SYSCLK_DIV(__VALUE__)
#define	IS_LL_UTILS_APB1_DIV(__VALUE__)
#define	IS_LL_UTILS_APB2_DIV(__VALUE__)
#define	IS_LL_UTILS_PLLMUL_VALUE(__VALUE__)
#define	IS_LL_UTILS_PREDIV_VALUE(__VALUE__)   (((__VALUE__) == LL_RCC_PREDIV_DIV_1) || ((__VALUE__) == LL_RCC_PREDIV_DIV_2))
#define	IS_LL_UTILS_PLL_FREQUENCY(__VALUE__)   ((__VALUE__) <= UTILS_PLL_OUTPUT_MAX)
#define	IS_LL_UTILS_HSE_BYPASS(__STATE__)
#define	IS_LL_UTILS_HSE_FREQUENCY(__FREQUENCY__)   (((__FREQUENCY__) >= UTILS_HSE_FREQUENCY_MIN) && ((__FREQUENCY__) <= UTILS_HSE_FREQUENCY_MAX))
Functions
static uint32_t	UTILS_GetPLLOutputFrequency (uint32_t PLL_InputFrequency, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct)
	Function to check that PLL can be modified.
static ErrorStatus	UTILS_PLL_HSE_ConfigSystemClock (uint32_t PLL_InputFrequency, uint32_t HSEBypass, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
	This function enable the HSE when it is used by PLL or PLL2.
static ErrorStatus	UTILS_EnablePLLAndSwitchSystem (uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
	Function to enable PLL and switch system clock to PLL.
static ErrorStatus	UTILS_PLL_IsBusy (void)
	Function to check that PLL can be modified.
void	LL_Init1msTick (uint32_t HCLKFrequency)
	This function configures the Cortex-M SysTick source to have 1ms time base.
void	LL_mDelay (uint32_t Delay)
	This function provides accurate delay (in milliseconds) based on SysTick counter flag.
void	LL_SetSystemCoreClock (uint32_t HCLKFrequency)
	This function sets directly SystemCoreClock CMSIS variable.
ErrorStatus	LL_SetFlashLatency (uint32_t Frequency)
	Update number of Flash wait states in line with new frequency and current voltage range.
ErrorStatus	LL_PLL_ConfigSystemClock_HSI (LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
	This function configures system clock with HSI as clock source of the PLL.
ErrorStatus	LL_PLL_ConfigSystemClock_HSE (uint32_t HSEFrequency, uint32_t HSEBypass, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
	This function configures system clock with HSE as clock source of the PLL.

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Detailed Description

UTILS LL module driver.

Author:

MCD Application Team

Attention:

© Copyright (c) 2016 STMicroelectronics. All rights reserved.

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Definition in file stm32f1xx_ll_utils.c.

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Define Documentation

#define assert_param

(

expr

)

((void)0U)

Definition at line 27 of file stm32f1xx_ll_utils.c.

Referenced by LL_PLL_ConfigSystemClock_HSE(), LL_PLL_ConfigSystemClock_HSI(), UTILS_EnablePLLAndSwitchSystem(), and UTILS_GetPLLOutputFrequency().