From d8b6d18d2fefee381eb6a26334a13e94126b6d8e Mon Sep 17 00:00:00 2001 From: jaseg Date: Mon, 21 Dec 2020 16:22:11 +0100 Subject: Remove obsolete template code from fw --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c | 605 --------------------- 1 file changed, 605 deletions(-) delete mode 100644 fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c (limited to 'fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_ll_utils.c') 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 - * - *

© 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 - * - ****************************************************************************** - */ - -/* 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****/ -- cgit