diff options
Diffstat (limited to 'fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c')
| -rw-r--r-- | fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c | 605 |
1 files changed, 0 insertions, 605 deletions
diff --git a/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c deleted file mode 100644 index b6b084a..0000000 --- a/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c +++ /dev/null @@ -1,605 +0,0 @@ -/**
- ******************************************************************************
- * @file stm32f0xx_ll_utils.c
- * @author MCD Application Team
- * @brief UTILS LL module driver.
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2016 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * 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
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f0xx_ll_rcc.h"
-#include "stm32f0xx_ll_utils.h"
-#include "stm32f0xx_ll_system.h"
-#ifdef USE_FULL_ASSERT
-#include "stm32_assert.h"
-#else
-#define assert_param(expr) ((void)0U)
-#endif
-
-/** @addtogroup STM32F0xx_LL_Driver
- * @{
- */
-
-/** @addtogroup UTILS_LL
- * @{
- */
-
-/* Private types -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private constants ---------------------------------------------------------*/
-/** @addtogroup UTILS_LL_Private_Constants
- * @{
- */
-
-/* Defines used for PLL range */
-#define UTILS_PLL_OUTPUT_MIN 16000000U /*!< Frequency min for PLL output, in Hz */
-#define UTILS_PLL_OUTPUT_MAX 48000000U /*!< Frequency max for PLL output, in Hz */
-
-/* Defines used for HSE range */
-#define UTILS_HSE_FREQUENCY_MIN 4000000U /*!< Frequency min for HSE frequency, in Hz */
-#define UTILS_HSE_FREQUENCY_MAX 32000000U /*!< Frequency max for HSE frequency, in Hz */
-
-/* Defines used for FLASH latency according to SYSCLK Frequency */
-#define UTILS_LATENCY1_FREQ 24000000U /*!< SYSCLK frequency to set FLASH latency 1 */
-/**
- * @}
- */
-/* Private macros ------------------------------------------------------------*/
-/** @addtogroup UTILS_LL_Private_Macros
- * @{
- */
-#define IS_LL_UTILS_SYSCLK_DIV(__VALUE__) (((__VALUE__) == LL_RCC_SYSCLK_DIV_1) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_2) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_4) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_8) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_16) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_64) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_128) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_256) \
- || ((__VALUE__) == LL_RCC_SYSCLK_DIV_512))
-
-#define IS_LL_UTILS_APB1_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB1_DIV_1) \
- || ((__VALUE__) == LL_RCC_APB1_DIV_2) \
- || ((__VALUE__) == LL_RCC_APB1_DIV_4) \
- || ((__VALUE__) == LL_RCC_APB1_DIV_8) \
- || ((__VALUE__) == LL_RCC_APB1_DIV_16))
-
-#define IS_LL_UTILS_PLLMUL_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PLL_MUL_2) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_3) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_4) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_5) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_6) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_7) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_8) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_9) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_10) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_11) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_12) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_13) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_14) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_15) \
- || ((__VALUE__) == LL_RCC_PLL_MUL_16))
-
-#define IS_LL_UTILS_PREDIV_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PREDIV_DIV_1) || ((__VALUE__) == LL_RCC_PREDIV_DIV_2) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_3) || ((__VALUE__) == LL_RCC_PREDIV_DIV_4) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_5) || ((__VALUE__) == LL_RCC_PREDIV_DIV_6) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_7) || ((__VALUE__) == LL_RCC_PREDIV_DIV_8) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_9) || ((__VALUE__) == LL_RCC_PREDIV_DIV_10) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_11) || ((__VALUE__) == LL_RCC_PREDIV_DIV_12) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_13) || ((__VALUE__) == LL_RCC_PREDIV_DIV_14) || \
- ((__VALUE__) == LL_RCC_PREDIV_DIV_15) || ((__VALUE__) == LL_RCC_PREDIV_DIV_16))
-
-#define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((UTILS_PLL_OUTPUT_MIN <= (__VALUE__)) && ((__VALUE__) <= UTILS_PLL_OUTPUT_MAX))
-
-
-#define IS_LL_UTILS_HSE_BYPASS(__STATE__) (((__STATE__) == LL_UTILS_HSEBYPASS_ON) \
- || ((__STATE__) == LL_UTILS_HSEBYPASS_OFF))
-
-#define IS_LL_UTILS_HSE_FREQUENCY(__FREQUENCY__) (((__FREQUENCY__) >= UTILS_HSE_FREQUENCY_MIN) && ((__FREQUENCY__) <= UTILS_HSE_FREQUENCY_MAX))
-/**
- * @}
- */
-/* Private function prototypes -----------------------------------------------*/
-/** @defgroup UTILS_LL_Private_Functions UTILS Private functions
- * @{
- */
-static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency,
- LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct);
-#if defined(FLASH_ACR_LATENCY)
-static ErrorStatus UTILS_SetFlashLatency(uint32_t Frequency);
-#endif /* FLASH_ACR_LATENCY */
-static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
-static ErrorStatus UTILS_PLL_IsBusy(void);
-/**
- * @}
- */
-
-/* Exported functions --------------------------------------------------------*/
-/** @addtogroup UTILS_LL_Exported_Functions
- * @{
- */
-
-/** @addtogroup UTILS_LL_EF_DELAY
- * @{
- */
-
-/**
- * @brief This function configures the Cortex-M SysTick source to have 1ms time base.
- * @note When a RTOS is used, it is recommended to avoid changing the Systick
- * configuration by calling this function, for a delay use rather osDelay RTOS service.
- * @param HCLKFrequency HCLK frequency in Hz
- * @note HCLK frequency can be calculated thanks to RCC helper macro or function @ref LL_RCC_GetSystemClocksFreq
- * @retval None
- */
-void LL_Init1msTick(uint32_t HCLKFrequency)
-{
- /* Use frequency provided in argument */
- LL_InitTick(HCLKFrequency, 1000U);
-}
-
-/**
- * @brief This function provides accurate delay (in milliseconds) based
- * on SysTick counter flag
- * @note When a RTOS is used, it is recommended to avoid using blocking delay
- * and use rather osDelay service.
- * @note To respect 1ms timebase, user should call @ref LL_Init1msTick function which
- * will configure Systick to 1ms
- * @param Delay specifies the delay time length, in milliseconds.
- * @retval None
- */
-void LL_mDelay(uint32_t Delay)
-{
- __IO uint32_t tmp = SysTick->CTRL; /* Clear the COUNTFLAG first */
- /* Add this code to indicate that local variable is not used */
- ((void)tmp);
-
- /* Add a period to guaranty minimum wait */
- if (Delay < LL_MAX_DELAY)
- {
- Delay++;
- }
-
- while (Delay)
- {
- if ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) != 0U)
- {
- Delay--;
- }
- }
-}
-
-/**
- * @}
- */
-
-/** @addtogroup UTILS_EF_SYSTEM
- * @brief System Configuration functions
- *
- @verbatim
- ===============================================================================
- ##### System Configuration functions #####
- ===============================================================================
- [..]
- System, AHB and APB buses clocks configuration
-
- (+) The maximum frequency of the SYSCLK, HCLK, PCLK1 and PCLK2 is 48000000 Hz.
- @endverbatim
- @internal
- Depending on the SYSCLK frequency, the flash latency should be adapted accordingly:
- (++) +-----------------------------------------------+
- (++) | Latency | SYSCLK clock frequency (MHz) |
- (++) |---------------|-------------------------------|
- (++) |0WS(1CPU cycle)| 0 < SYSCLK <= 24 |
- (++) |---------------|-------------------------------|
- (++) |1WS(2CPU cycle)| 24 < SYSCLK <= 48 |
- (++) +-----------------------------------------------+
- @endinternal
- * @{
- */
-
-/**
- * @brief This function sets directly SystemCoreClock CMSIS variable.
- * @note Variable can be calculated also through SystemCoreClockUpdate function.
- * @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
- * @retval None
- */
-void LL_SetSystemCoreClock(uint32_t HCLKFrequency)
-{
- /* HCLK clock frequency */
- SystemCoreClock = HCLKFrequency;
-}
-
-/**
- * @brief This function configures system clock with HSI as clock source of the PLL
- * @note The application need to ensure that PLL is disabled.
- * @note Function is based on the following formula:
- * - PLL output frequency = ((HSI frequency / PREDIV) * PLLMUL)
- * - PREDIV: Set to 2 for few devices
- * - PLLMUL: The application software must set correctly the PLL multiplication factor to
- * be in the range 16-48MHz
- * @note FLASH latency can be modified through this function.
- * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
- * the configuration information for the PLL.
- * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
- * the configuration information for the BUS prescalers.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: Max frequency configuration done
- * - ERROR: Max frequency configuration not done
- */
-ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
- LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
-{
- ErrorStatus status = SUCCESS;
- uint32_t pllfreq = 0U;
-
- /* Check if one of the PLL is enabled */
- if (UTILS_PLL_IsBusy() == SUCCESS)
- {
-#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
- /* Check PREDIV value */
- assert_param(IS_LL_UTILS_PREDIV_VALUE(UTILS_PLLInitStruct->PLLDiv));
-#else
- /* Force PREDIV value to 2 */
- UTILS_PLLInitStruct->Prediv = LL_RCC_PREDIV_DIV_2;
-#endif /*RCC_PLLSRC_PREDIV1_SUPPORT*/
- /* Calculate the new PLL output frequency */
- pllfreq = UTILS_GetPLLOutputFrequency(HSI_VALUE, UTILS_PLLInitStruct);
-
- /* Enable HSI if not enabled */
- if (LL_RCC_HSI_IsReady() != 1U)
- {
- LL_RCC_HSI_Enable();
- while (LL_RCC_HSI_IsReady() != 1U)
- {
- /* Wait for HSI ready */
- }
- }
-
- /* Configure PLL */
-#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
- LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
-#else
- LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI_DIV_2, UTILS_PLLInitStruct->PLLMul);
-#endif /*RCC_PLLSRC_PREDIV1_SUPPORT*/
-
- /* Enable PLL and switch system clock to PLL */
- status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
- }
- else
- {
- /* Current PLL configuration cannot be modified */
- status = ERROR;
- }
-
- return status;
-}
-
-#if defined(RCC_CFGR_SW_HSI48)
-/**
- * @brief This function configures system clock with HSI48 as clock source of the PLL
- * @note The application need to ensure that PLL is disabled.
- * @note Function is based on the following formula:
- * - PLL output frequency = ((HSI48 frequency / PREDIV) * PLLMUL)
- * - PLLMUL: The application software must set correctly the PLL multiplication factor to
- * be in the range 16-48MHz
- * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
- * the configuration information for the PLL.
- * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
- * the configuration information for the BUS prescalers.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: Max frequency configuration done
- * - ERROR: Max frequency configuration not done
- */
-ErrorStatus LL_PLL_ConfigSystemClock_HSI48(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
- LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
-{
- ErrorStatus status = SUCCESS;
- uint32_t pllfreq = 0U;
-
- /* Check if one of the PLL is enabled */
- if (UTILS_PLL_IsBusy() == SUCCESS)
- {
- /* Check PREDIV value */
- assert_param(IS_LL_UTILS_PREDIV_VALUE(UTILS_PLLInitStruct->PLLDiv));
-
- /* Calculate the new PLL output frequency */
- pllfreq = UTILS_GetPLLOutputFrequency(HSI48_VALUE, UTILS_PLLInitStruct);
-
- /* Enable HSI48 if not enabled */
- if (LL_RCC_HSI48_IsReady() != 1U)
- {
- LL_RCC_HSI48_Enable();
- while (LL_RCC_HSI48_IsReady() != 1U)
- {
- /* Wait for HSI48 ready */
- }
- }
-
- /* Configure PLL */
- LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI48, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
-
- /* Enable PLL and switch system clock to PLL */
- status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
- }
- else
- {
- /* Current PLL configuration cannot be modified */
- status = ERROR;
- }
-
- return status;
-}
-
-#endif /*RCC_CFGR_SW_HSI48*/
-/**
- * @brief This function configures system clock with HSE as clock source of the PLL
- * @note The application need to ensure that PLL is disabled.
- * @note Function is based on the following formula:
- * - PLL output frequency = ((HSE frequency / PREDIV) * PLLMUL)
- * - PLLMUL: The application software must set correctly the PLL multiplication factor to
- * be in the range 16-48MHz
- * @note FLASH latency can be modified through this function.
- * @param HSEFrequency Value between Min_Data = 4000000 and Max_Data = 32000000
- * @param HSEBypass This parameter can be one of the following values:
- * @arg @ref LL_UTILS_HSEBYPASS_ON
- * @arg @ref LL_UTILS_HSEBYPASS_OFF
- * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
- * the configuration information for the PLL.
- * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
- * the configuration information for the BUS prescalers.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: Max frequency configuration done
- * - ERROR: Max frequency configuration not done
- */
-ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
- LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
-{
- ErrorStatus status = SUCCESS;
- uint32_t pllfreq = 0U;
-
- /* Check the parameters */
- assert_param(IS_LL_UTILS_HSE_FREQUENCY(HSEFrequency));
- assert_param(IS_LL_UTILS_HSE_BYPASS(HSEBypass));
-
- /* Check if one of the PLL is enabled */
- if (UTILS_PLL_IsBusy() == SUCCESS)
- {
- /* Check PREDIV value */
-#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
- assert_param(IS_LL_UTILS_PREDIV_VALUE(UTILS_PLLInitStruct->PLLDiv));
-#else
- assert_param(IS_LL_UTILS_PREDIV_VALUE(UTILS_PLLInitStruct->Prediv));
-#endif /*RCC_PLLSRC_PREDIV1_SUPPORT*/
-
- /* Calculate the new PLL output frequency */
- pllfreq = UTILS_GetPLLOutputFrequency(HSEFrequency, UTILS_PLLInitStruct);
-
- /* Enable HSE if not enabled */
- if (LL_RCC_HSE_IsReady() != 1U)
- {
- /* Check if need to enable HSE bypass feature or not */
- if (HSEBypass == LL_UTILS_HSEBYPASS_ON)
- {
- LL_RCC_HSE_EnableBypass();
- }
- else
- {
- LL_RCC_HSE_DisableBypass();
- }
-
- /* Enable HSE */
- LL_RCC_HSE_Enable();
- while (LL_RCC_HSE_IsReady() != 1U)
- {
- /* Wait for HSE ready */
- }
- }
-
- /* Configure PLL */
-#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
- LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
-#else
- LL_RCC_PLL_ConfigDomain_SYS((RCC_CFGR_PLLSRC_HSE_PREDIV | UTILS_PLLInitStruct->Prediv), UTILS_PLLInitStruct->PLLMul);
-#endif /*RCC_PLLSRC_PREDIV1_SUPPORT*/
-
- /* Enable PLL and switch system clock to PLL */
- status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
- }
- else
- {
- /* Current PLL configuration cannot be modified */
- status = ERROR;
- }
-
- return status;
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/** @addtogroup UTILS_LL_Private_Functions
- * @{
- */
-/**
- * @brief Update number of Flash wait states in line with new frequency and current
- voltage range.
- * @param Frequency SYSCLK frequency
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: Latency has been modified
- * - ERROR: Latency cannot be modified
- */
-#if defined(FLASH_ACR_LATENCY)
-static ErrorStatus UTILS_SetFlashLatency(uint32_t Frequency)
-{
- ErrorStatus status = SUCCESS;
-
- uint32_t latency = LL_FLASH_LATENCY_0; /* default value 0WS */
-
- /* Frequency cannot be equal to 0 */
- if (Frequency == 0U)
- {
- status = ERROR;
- }
- else
- {
- if (Frequency > UTILS_LATENCY1_FREQ)
- {
- /* 24 < SYSCLK <= 48 => 1WS (2 CPU cycles) */
- latency = LL_FLASH_LATENCY_1;
- }
- /* else SYSCLK < 24MHz default LL_FLASH_LATENCY_0 0WS */
-
- LL_FLASH_SetLatency(latency);
-
- /* Check that the new number of wait states is taken into account to access the Flash
- memory by reading the FLASH_ACR register */
- if (LL_FLASH_GetLatency() != latency)
- {
- status = ERROR;
- }
- }
- return status;
-}
-#endif /* FLASH_ACR_LATENCY */
-
-/**
- * @brief Function to check that PLL can be modified
- * @param PLL_InputFrequency PLL input frequency (in Hz)
- * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
- * the configuration information for the PLL.
- * @retval PLL output frequency (in Hz)
- */
-static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct)
-{
- uint32_t pllfreq = 0U;
-
- /* Check the parameters */
- assert_param(IS_LL_UTILS_PLLMUL_VALUE(UTILS_PLLInitStruct->PLLMul));
-
- /* Check different PLL parameters according to RM */
- /* The application software must set correctly the PLL multiplication factor to
- be in the range 16-48MHz */
-#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
- pllfreq = __LL_RCC_CALC_PLLCLK_FREQ(PLL_InputFrequency, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
-#else
- pllfreq = __LL_RCC_CALC_PLLCLK_FREQ(PLL_InputFrequency / (UTILS_PLLInitStruct->Prediv + 1U), UTILS_PLLInitStruct->PLLMul);
-#endif /*RCC_PLLSRC_PREDIV1_SUPPORT*/
- assert_param(IS_LL_UTILS_PLL_FREQUENCY(pllfreq));
-
- return pllfreq;
-}
-
-/**
- * @brief Function to check that PLL can be modified
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: PLL modification can be done
- * - ERROR: PLL is busy
- */
-static ErrorStatus UTILS_PLL_IsBusy(void)
-{
- ErrorStatus status = SUCCESS;
-
- /* Check if PLL is busy*/
- if (LL_RCC_PLL_IsReady() != 0U)
- {
- /* PLL configuration cannot be modified */
- status = ERROR;
- }
-
- return status;
-}
-
-/**
- * @brief Function to enable PLL and switch system clock to PLL
- * @param SYSCLK_Frequency SYSCLK frequency
- * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
- * the configuration information for the BUS prescalers.
- * @retval An ErrorStatus enumeration value:
- * - SUCCESS: No problem to switch system to PLL
- * - ERROR: Problem to switch system to PLL
- */
-static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
-{
- ErrorStatus status = SUCCESS;
- uint32_t sysclk_frequency_current = 0U;
-
- assert_param(IS_LL_UTILS_SYSCLK_DIV(UTILS_ClkInitStruct->AHBCLKDivider));
- assert_param(IS_LL_UTILS_APB1_DIV(UTILS_ClkInitStruct->APB1CLKDivider));
-
- /* Calculate current SYSCLK frequency */
- sysclk_frequency_current = (SystemCoreClock << AHBPrescTable[LL_RCC_GetAHBPrescaler() >> RCC_POSITION_HPRE]);
-
- /* Increasing the number of wait states because of higher CPU frequency */
- if (sysclk_frequency_current < SYSCLK_Frequency)
- {
- /* Set FLASH latency to highest latency */
- status = UTILS_SetFlashLatency(SYSCLK_Frequency);
- }
-
- /* Update system clock configuration */
- if (status == SUCCESS)
- {
- /* Enable PLL */
- LL_RCC_PLL_Enable();
- while (LL_RCC_PLL_IsReady() != 1U)
- {
- /* Wait for PLL ready */
- }
-
- /* Sysclk activation on the main PLL */
- LL_RCC_SetAHBPrescaler(UTILS_ClkInitStruct->AHBCLKDivider);
- LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
- while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
- {
- /* Wait for system clock switch to PLL */
- }
-
- /* Set APB1 & APB2 prescaler*/
- LL_RCC_SetAPB1Prescaler(UTILS_ClkInitStruct->APB1CLKDivider);
- }
-
- /* Decreasing the number of wait states because of lower CPU frequency */
- if (sysclk_frequency_current > SYSCLK_Frequency)
- {
- /* Set FLASH latency to lowest latency */
- status = UTILS_SetFlashLatency(SYSCLK_Frequency);
- }
-
- /* Update SystemCoreClock variable */
- if (status == SUCCESS)
- {
- LL_SetSystemCoreClock(__LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, UTILS_ClkInitStruct->AHBCLKDivider));
- }
-
- return status;
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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