| /** |
| ****************************************************************************** |
| * @file stm32f2xx_ll_utils.h |
| * @author MCD Application Team |
| * @brief Header file of UTILS LL module. |
| ****************************************************************************** |
| * @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. |
| * |
| ****************************************************************************** |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| The LL UTILS driver contains a set of generic APIs that can be |
| used by user: |
| (+) Device electronic signature |
| (+) Timing functions |
| (+) PLL configuration functions |
| |
| @endverbatim |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef __STM32F2xx_LL_UTILS_H |
| #define __STM32F2xx_LL_UTILS_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f2xx.h" |
| |
| /** @addtogroup STM32F2xx_LL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup UTILS_LL UTILS |
| * @{ |
| */ |
| |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| |
| /* Private constants ---------------------------------------------------------*/ |
| /** @defgroup UTILS_LL_Private_Constants UTILS Private Constants |
| * @{ |
| */ |
| |
| /* Max delay can be used in LL_mDelay */ |
| #define LL_MAX_DELAY 0xFFFFFFFFU |
| |
| /** |
| * @brief Unique device ID register base address |
| */ |
| #define UID_BASE_ADDRESS UID_BASE |
| |
| /** |
| * @brief Flash size data register base address |
| */ |
| #define FLASHSIZE_BASE_ADDRESS FLASHSIZE_BASE |
| |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup UTILS_LL_Private_Macros UTILS Private Macros |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| /* Exported types ------------------------------------------------------------*/ |
| /** @defgroup UTILS_LL_ES_INIT UTILS Exported structures |
| * @{ |
| */ |
| /** |
| * @brief UTILS PLL structure definition |
| */ |
| typedef struct |
| { |
| uint32_t PLLM; /*!< Division factor for PLL VCO input clock. |
| This parameter can be a value of @ref RCC_LL_EC_PLLM_DIV |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
| |
| uint32_t PLLN; /*!< Multiplication factor for PLL VCO output clock. |
| This parameter must be a number between Min_Data = 8 and Max_Data = 86 |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
| |
| uint32_t PLLP; /*!< Division for the main system clock. |
| This parameter can be a value of @ref RCC_LL_EC_PLLP_DIV |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
| } LL_UTILS_PLLInitTypeDef; |
| |
| /** |
| * @brief UTILS System, AHB and APB buses clock configuration structure definition |
| */ |
| typedef struct |
| { |
| uint32_t AHBCLKDivider; /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK). |
| This parameter can be a value of @ref RCC_LL_EC_SYSCLK_DIV |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_SetAHBPrescaler(). */ |
| |
| uint32_t APB1CLKDivider; /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK). |
| This parameter can be a value of @ref RCC_LL_EC_APB1_DIV |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_SetAPB1Prescaler(). */ |
| |
| uint32_t APB2CLKDivider; /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK). |
| This parameter can be a value of @ref RCC_LL_EC_APB2_DIV |
| |
| This feature can be modified afterwards using unitary function |
| @ref LL_RCC_SetAPB2Prescaler(). */ |
| |
| } LL_UTILS_ClkInitTypeDef; |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported constants --------------------------------------------------------*/ |
| /** @defgroup UTILS_LL_Exported_Constants UTILS Exported Constants |
| * @{ |
| */ |
| |
| /** @defgroup UTILS_EC_HSE_BYPASS HSE Bypass activation |
| * @{ |
| */ |
| #define LL_UTILS_HSEBYPASS_OFF 0x00000000U /*!< HSE Bypass is not enabled */ |
| #define LL_UTILS_HSEBYPASS_ON 0x00000001U /*!< HSE Bypass is enabled */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported macro ------------------------------------------------------------*/ |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @defgroup UTILS_LL_Exported_Functions UTILS Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup UTILS_EF_DEVICE_ELECTRONIC_SIGNATURE DEVICE ELECTRONIC SIGNATURE |
| * @{ |
| */ |
| |
| /** |
| * @brief Get Word0 of the unique device identifier (UID based on 96 bits) |
| * @retval UID[31:0] |
| */ |
| __STATIC_INLINE uint32_t LL_GetUID_Word0(void) |
| { |
| return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS))); |
| } |
| |
| /** |
| * @brief Get Word1 of the unique device identifier (UID based on 96 bits) |
| * @retval UID[63:32] |
| */ |
| __STATIC_INLINE uint32_t LL_GetUID_Word1(void) |
| { |
| return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 4U)))); |
| } |
| |
| /** |
| * @brief Get Word2 of the unique device identifier (UID based on 96 bits) |
| * @retval UID[95:64] |
| */ |
| __STATIC_INLINE uint32_t LL_GetUID_Word2(void) |
| { |
| return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 8U)))); |
| } |
| |
| /** |
| * @brief Get Flash memory size |
| * @note This bitfield indicates the size of the device Flash memory expressed in |
| * Kbytes. As an example, 0x040 corresponds to 64 Kbytes. |
| * @retval FLASH_SIZE[15:0]: Flash memory size |
| */ |
| __STATIC_INLINE uint32_t LL_GetFlashSize(void) |
| { |
| return (uint32_t)(READ_REG(*((uint32_t *)FLASHSIZE_BASE_ADDRESS)) & 0xFFFF); |
| } |
| |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup UTILS_LL_EF_DELAY DELAY |
| * @{ |
| */ |
| |
| /** |
| * @brief This function configures the Cortex-M SysTick source of the time base. |
| * @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro) |
| * @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 Ticks Number of ticks |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks) |
| { |
| /* Configure the SysTick to have interrupt in 1ms time base */ |
| SysTick->LOAD = (uint32_t)((HCLKFrequency / Ticks) - 1UL); /* set reload register */ |
| SysTick->VAL = 0UL; /* Load the SysTick Counter Value */ |
| SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | |
| SysTick_CTRL_ENABLE_Msk; /* Enable the Systick Timer */ |
| } |
| |
| void LL_Init1msTick(uint32_t HCLKFrequency); |
| void LL_mDelay(uint32_t Delay); |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup UTILS_EF_SYSTEM SYSTEM |
| * @{ |
| */ |
| |
| void LL_SetSystemCoreClock(uint32_t HCLKFrequency); |
| ErrorStatus LL_SetFlashLatency(uint32_t HCLK_Frequency); |
| ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, |
| LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
| ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass, |
| LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __STM32F2xx_LL_UTILS_H */ |
