/**
******************************************************************************
* @file stm32l1xx_ll_utils.h
* @author MCD Application Team
* @brief Header file of UTILS LL module.
@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
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L1xx_LL_UTILS_H
#define __STM32L1xx_LL_UTILS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l1xx.h"
/** @addtogroup STM32L1xx_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 PLLMul; /*!< Multiplication factor for PLL VCO input clock.
This parameter can be a value of @ref RCC_LL_EC_PLL_MUL
This feature can be modified afterwards using unitary function
@ref LL_RCC_PLL_ConfigDomain_SYS(). */
uint32_t PLLDiv; /*!< Division factor for PLL VCO output clock.
This parameter can be a value of @ref RCC_LL_EC_PLL_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 + 0x04U))));
}
/**
* @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 + 0x14U))));
}
/**
* @brief Get Flash memory size
* @note For DEV_ID = 0x416 or 0x427 or 0x429 or 0x437, this field value indicates the Flash memory
* size of the device in Kbytes.\n
* Example: 0x0080 = 128 Kbytes.\n
* For DEV_ID = 0x436, the field value can be '0' or '1', with '0' for 384 Kbytes and '1' for 256 Kbytes.
* @note For DEV_ID = 0x429, only LSB part of F_SIZE: F_SIZE[7:0] is valid. The MSB part
* F_SIZE[15:8] is reserved and must be ignored.
* @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)) & 0xFFFFU);
}
/**
* @}
*/
/** @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_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);
#if defined(FLASH_ACR_LATENCY)
ErrorStatus LL_SetFlashLatency(uint32_t Frequency);
#endif /* FLASH_ACR_LATENCY */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L1xx_LL_UTILS_H */