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| 56 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file stm32l1xx_ll_utils.h |
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| 4 | * @author MCD Application Team |
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| 5 | * @brief Header file of UTILS LL module. |
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| 6 | @verbatim |
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| 7 | ============================================================================== |
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| 8 | ##### How to use this driver ##### |
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| 9 | ============================================================================== |
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| 10 | [..] |
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| 11 | The LL UTILS driver contains a set of generic APIs that can be |
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| 12 | used by user: |
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| 13 | (+) Device electronic signature |
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| 14 | (+) Timing functions |
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| 15 | (+) PLL configuration functions |
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| 16 | |||
| 17 | @endverbatim |
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| 18 | ****************************************************************************** |
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| 19 | * @attention |
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| 20 | * |
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| 21 | * <h2><center>© Copyright(c) 2017 STMicroelectronics. |
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| 22 | * All rights reserved.</center></h2> |
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| 23 | * |
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| 24 | * This software component is licensed by ST under BSD 3-Clause license, |
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| 25 | * the "License"; You may not use this file except in compliance with the |
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| 26 | * License. You may obtain a copy of the License at: |
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| 27 | * opensource.org/licenses/BSD-3-Clause |
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| 28 | * |
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| 29 | ****************************************************************************** |
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| 30 | */ |
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| 31 | |||
| 32 | /* Define to prevent recursive inclusion -------------------------------------*/ |
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| 33 | #ifndef __STM32L1xx_LL_UTILS_H |
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| 34 | #define __STM32L1xx_LL_UTILS_H |
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| 35 | |||
| 36 | #ifdef __cplusplus |
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| 37 | extern "C" { |
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| 38 | #endif |
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| 39 | |||
| 40 | /* Includes ------------------------------------------------------------------*/ |
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| 41 | #include "stm32l1xx.h" |
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| 42 | |||
| 43 | /** @addtogroup STM32L1xx_LL_Driver |
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| 44 | * @{ |
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| 45 | */ |
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| 46 | |||
| 47 | /** @defgroup UTILS_LL UTILS |
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| 48 | * @{ |
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| 49 | */ |
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| 50 | |||
| 51 | /* Private types -------------------------------------------------------------*/ |
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| 52 | /* Private variables ---------------------------------------------------------*/ |
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| 53 | |||
| 54 | /* Private constants ---------------------------------------------------------*/ |
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| 55 | /** @defgroup UTILS_LL_Private_Constants UTILS Private Constants |
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| 56 | * @{ |
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| 57 | */ |
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| 58 | |||
| 59 | /* Max delay can be used in LL_mDelay */ |
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| 60 | #define LL_MAX_DELAY 0xFFFFFFFFU |
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| 61 | |||
| 62 | /** |
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| 63 | * @brief Unique device ID register base address |
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| 64 | */ |
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| 65 | #define UID_BASE_ADDRESS UID_BASE |
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| 66 | |||
| 67 | /** |
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| 68 | * @brief Flash size data register base address |
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| 69 | */ |
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| 70 | #define FLASHSIZE_BASE_ADDRESS FLASHSIZE_BASE |
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| 71 | |||
| 72 | /** |
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| 73 | * @} |
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| 74 | */ |
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| 75 | |||
| 76 | /* Private macros ------------------------------------------------------------*/ |
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| 77 | /** @defgroup UTILS_LL_Private_Macros UTILS Private Macros |
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| 78 | * @{ |
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| 79 | */ |
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| 80 | /** |
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| 81 | * @} |
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| 82 | */ |
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| 83 | /* Exported types ------------------------------------------------------------*/ |
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| 84 | /** @defgroup UTILS_LL_ES_INIT UTILS Exported structures |
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| 85 | * @{ |
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| 86 | */ |
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| 87 | /** |
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| 88 | * @brief UTILS PLL structure definition |
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| 89 | */ |
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| 90 | typedef struct |
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| 91 | { |
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| 92 | uint32_t PLLMul; /*!< Multiplication factor for PLL VCO input clock. |
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| 93 | This parameter can be a value of @ref RCC_LL_EC_PLL_MUL |
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| 94 | |||
| 95 | This feature can be modified afterwards using unitary function |
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| 96 | @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
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| 97 | |||
| 98 | uint32_t PLLDiv; /*!< Division factor for PLL VCO output clock. |
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| 99 | This parameter can be a value of @ref RCC_LL_EC_PLL_DIV |
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| 100 | |||
| 101 | This feature can be modified afterwards using unitary function |
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| 102 | @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
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| 103 | } LL_UTILS_PLLInitTypeDef; |
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| 104 | |||
| 105 | /** |
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| 106 | * @brief UTILS System, AHB and APB buses clock configuration structure definition |
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| 107 | */ |
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| 108 | typedef struct |
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| 109 | { |
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| 110 | uint32_t AHBCLKDivider; /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK). |
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| 111 | This parameter can be a value of @ref RCC_LL_EC_SYSCLK_DIV |
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| 112 | |||
| 113 | This feature can be modified afterwards using unitary function |
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| 114 | @ref LL_RCC_SetAHBPrescaler(). */ |
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| 115 | |||
| 116 | uint32_t APB1CLKDivider; /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK). |
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| 117 | This parameter can be a value of @ref RCC_LL_EC_APB1_DIV |
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| 118 | |||
| 119 | This feature can be modified afterwards using unitary function |
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| 120 | @ref LL_RCC_SetAPB1Prescaler(). */ |
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| 121 | |||
| 122 | uint32_t APB2CLKDivider; /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK). |
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| 123 | This parameter can be a value of @ref RCC_LL_EC_APB2_DIV |
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| 124 | |||
| 125 | This feature can be modified afterwards using unitary function |
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| 126 | @ref LL_RCC_SetAPB2Prescaler(). */ |
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| 127 | |||
| 128 | } LL_UTILS_ClkInitTypeDef; |
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| 129 | |||
| 130 | /** |
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| 131 | * @} |
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| 132 | */ |
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| 133 | |||
| 134 | /* Exported constants --------------------------------------------------------*/ |
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| 135 | /** @defgroup UTILS_LL_Exported_Constants UTILS Exported Constants |
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| 136 | * @{ |
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| 137 | */ |
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| 138 | |||
| 139 | /** @defgroup UTILS_EC_HSE_BYPASS HSE Bypass activation |
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| 140 | * @{ |
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| 141 | */ |
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| 142 | #define LL_UTILS_HSEBYPASS_OFF 0x00000000U /*!< HSE Bypass is not enabled */ |
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| 143 | #define LL_UTILS_HSEBYPASS_ON 0x00000001U /*!< HSE Bypass is enabled */ |
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| 144 | /** |
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| 145 | * @} |
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| 146 | */ |
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| 147 | |||
| 148 | /** |
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| 149 | * @} |
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| 150 | */ |
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| 151 | |||
| 152 | /* Exported macro ------------------------------------------------------------*/ |
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| 153 | |||
| 154 | /* Exported functions --------------------------------------------------------*/ |
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| 155 | /** @defgroup UTILS_LL_Exported_Functions UTILS Exported Functions |
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| 156 | * @{ |
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| 157 | */ |
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| 158 | |||
| 159 | /** @defgroup UTILS_EF_DEVICE_ELECTRONIC_SIGNATURE DEVICE ELECTRONIC SIGNATURE |
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| 160 | * @{ |
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| 161 | */ |
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| 162 | |||
| 163 | /** |
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| 164 | * @brief Get Word0 of the unique device identifier (UID based on 96 bits) |
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| 165 | * @retval UID[31:0] |
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| 166 | */ |
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| 167 | __STATIC_INLINE uint32_t LL_GetUID_Word0(void) |
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| 168 | { |
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| 169 | return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS))); |
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| 170 | } |
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| 171 | |||
| 172 | /** |
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| 173 | * @brief Get Word1 of the unique device identifier (UID based on 96 bits) |
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| 174 | * @retval UID[63:32] |
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| 175 | */ |
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| 176 | __STATIC_INLINE uint32_t LL_GetUID_Word1(void) |
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| 177 | { |
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| 178 | return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 0x04U)))); |
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| 179 | } |
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| 180 | |||
| 181 | /** |
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| 182 | * @brief Get Word2 of the unique device identifier (UID based on 96 bits) |
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| 183 | * @retval UID[95:64] |
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| 184 | */ |
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| 185 | __STATIC_INLINE uint32_t LL_GetUID_Word2(void) |
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| 186 | { |
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| 187 | return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 0x14U)))); |
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| 188 | } |
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| 189 | |||
| 190 | /** |
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| 191 | * @brief Get Flash memory size |
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| 192 | * @note For DEV_ID = 0x416 or 0x427 or 0x429 or 0x437, this field value indicates the Flash memory |
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| 193 | * size of the device in Kbytes.\n |
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| 194 | * Example: 0x0080 = 128 Kbytes.\n |
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| 195 | * For DEV_ID = 0x436, the field value can be '0' or '1', with '0' for 384 Kbytes and '1' for 256 Kbytes. |
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| 196 | * @note For DEV_ID = 0x429, only LSB part of F_SIZE: F_SIZE[7:0] is valid. The MSB part |
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| 197 | * F_SIZE[15:8] is reserved and must be ignored. |
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| 198 | * @retval FLASH_SIZE[15:0]: Flash memory size |
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| 199 | */ |
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| 200 | __STATIC_INLINE uint32_t LL_GetFlashSize(void) |
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| 201 | { |
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| 202 | return (uint32_t)(READ_REG(*((uint32_t *)FLASHSIZE_BASE_ADDRESS)) & 0xFFFFU); |
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| 203 | } |
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| 204 | |||
| 205 | |||
| 206 | /** |
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| 207 | * @} |
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| 208 | */ |
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| 209 | |||
| 210 | /** @defgroup UTILS_LL_EF_DELAY DELAY |
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| 211 | * @{ |
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| 212 | */ |
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| 213 | |||
| 214 | /** |
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| 215 | * @brief This function configures the Cortex-M SysTick source of the time base. |
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| 216 | * @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro) |
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| 217 | * @note When a RTOS is used, it is recommended to avoid changing the SysTick |
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| 218 | * configuration by calling this function, for a delay use rather osDelay RTOS service. |
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| 219 | * @param Ticks Number of ticks |
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| 220 | * @retval None |
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| 221 | */ |
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| 222 | __STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks) |
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| 223 | { |
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| 224 | /* Configure the SysTick to have interrupt in 1ms time base */ |
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| 225 | SysTick->LOAD = (uint32_t)((HCLKFrequency / Ticks) - 1UL); /* set reload register */ |
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| 226 | SysTick->VAL = 0UL; /* Load the SysTick Counter Value */ |
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| 227 | SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | |
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| 228 | SysTick_CTRL_ENABLE_Msk; /* Enable the Systick Timer */ |
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| 229 | } |
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| 230 | |||
| 231 | void LL_Init1msTick(uint32_t HCLKFrequency); |
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| 232 | void LL_mDelay(uint32_t Delay); |
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| 233 | |||
| 234 | /** |
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| 235 | * @} |
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| 236 | */ |
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| 237 | |||
| 238 | /** @defgroup UTILS_EF_SYSTEM SYSTEM |
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| 239 | * @{ |
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| 240 | */ |
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| 241 | |||
| 242 | void LL_SetSystemCoreClock(uint32_t HCLKFrequency); |
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| 243 | ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, |
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| 244 | LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
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| 245 | ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass, |
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| 246 | LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
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| 247 | #if defined(FLASH_ACR_LATENCY) |
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| 248 | ErrorStatus LL_SetFlashLatency(uint32_t Frequency); |
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| 249 | #endif /* FLASH_ACR_LATENCY */ |
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| 250 | |||
| 251 | /** |
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| 252 | * @} |
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| 253 | */ |
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| 254 | |||
| 255 | /** |
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| 256 | * @} |
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| 257 | */ |
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| 258 | |||
| 259 | /** |
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| 260 | * @} |
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| 261 | */ |
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| 262 | |||
| 263 | /** |
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| 264 | * @} |
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| 265 | */ |
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| 266 | |||
| 267 | #ifdef __cplusplus |
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| 268 | } |
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| 269 | #endif |
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| 270 | |||
| 271 | #endif /* __STM32L1xx_LL_UTILS_H */ |
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| 272 | |||
| 273 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |