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| 2 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file stm32f1xx_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) 2016 STMicroelectronics</center></h2> |
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| 22 | * |
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| 23 | * Redistribution and use in source and binary forms, with or without modification, |
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| 24 | * are permitted provided that the following conditions are met: |
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| 25 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 26 | * this list of conditions and the following disclaimer. |
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| 27 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 28 | * this list of conditions and the following disclaimer in the documentation |
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| 29 | * and/or other materials provided with the distribution. |
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| 30 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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| 31 | * may be used to endorse or promote products derived from this software |
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| 32 | * without specific prior written permission. |
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| 33 | * |
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| 34 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 35 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 36 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 37 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| 38 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 39 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| 40 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| 41 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| 42 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 43 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 44 | * |
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| 45 | ****************************************************************************** |
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| 46 | */ |
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| 47 | |||
| 48 | /* Define to prevent recursive inclusion -------------------------------------*/ |
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| 49 | #ifndef __STM32F1xx_LL_UTILS_H |
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| 50 | #define __STM32F1xx_LL_UTILS_H |
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| 51 | |||
| 52 | #ifdef __cplusplus |
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| 53 | extern "C" { |
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| 54 | #endif |
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| 55 | |||
| 56 | /* Includes ------------------------------------------------------------------*/ |
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| 57 | #include "stm32f1xx.h" |
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| 58 | |||
| 59 | /** @addtogroup STM32F1xx_LL_Driver |
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| 60 | * @{ |
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| 61 | */ |
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| 62 | |||
| 63 | /** @defgroup UTILS_LL UTILS |
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| 64 | * @{ |
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| 65 | */ |
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| 66 | |||
| 67 | /* Private types -------------------------------------------------------------*/ |
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| 68 | /* Private variables ---------------------------------------------------------*/ |
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| 69 | |||
| 70 | /* Private constants ---------------------------------------------------------*/ |
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| 71 | /** @defgroup UTILS_LL_Private_Constants UTILS Private Constants |
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| 72 | * @{ |
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| 73 | */ |
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| 74 | |||
| 75 | /* Max delay can be used in LL_mDelay */ |
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| 76 | #define LL_MAX_DELAY 0xFFFFFFFFU |
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| 77 | |||
| 78 | /** |
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| 79 | * @brief Unique device ID register base address |
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| 80 | */ |
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| 81 | #define UID_BASE_ADDRESS UID_BASE |
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| 82 | |||
| 83 | /** |
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| 84 | * @brief Flash size data register base address |
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| 85 | */ |
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| 86 | #define FLASHSIZE_BASE_ADDRESS FLASHSIZE_BASE |
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| 87 | |||
| 88 | /** |
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| 89 | * @} |
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| 90 | */ |
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| 91 | |||
| 92 | /* Private macros ------------------------------------------------------------*/ |
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| 93 | /** @defgroup UTILS_LL_Private_Macros UTILS Private Macros |
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| 94 | * @{ |
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| 95 | */ |
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| 96 | /** |
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| 97 | * @} |
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| 98 | */ |
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| 99 | /* Exported types ------------------------------------------------------------*/ |
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| 100 | /** @defgroup UTILS_LL_ES_INIT UTILS Exported structures |
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| 101 | * @{ |
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| 102 | */ |
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| 103 | /** |
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| 104 | * @brief UTILS PLL structure definition |
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| 105 | */ |
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| 106 | typedef struct |
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| 107 | { |
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| 108 | uint32_t PLLMul; /*!< Multiplication factor for PLL VCO input clock. |
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| 109 | This parameter can be a value of @ref RCC_LL_EC_PLL_MUL |
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| 110 | |||
| 111 | This feature can be modified afterwards using unitary function |
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| 112 | @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
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| 113 | |||
| 114 | uint32_t Prediv; /*!< Division factor for HSE used as PLL clock source. |
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| 115 | This parameter can be a value of @ref RCC_LL_EC_PREDIV_DIV |
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| 116 | |||
| 117 | This feature can be modified afterwards using unitary function |
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| 118 | @ref LL_RCC_PLL_ConfigDomain_SYS(). */ |
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| 119 | } LL_UTILS_PLLInitTypeDef; |
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| 120 | |||
| 121 | /** |
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| 122 | * @brief UTILS System, AHB and APB buses clock configuration structure definition |
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| 123 | */ |
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| 124 | typedef struct |
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| 125 | { |
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| 126 | uint32_t AHBCLKDivider; /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK). |
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| 127 | This parameter can be a value of @ref RCC_LL_EC_SYSCLK_DIV |
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| 128 | |||
| 129 | This feature can be modified afterwards using unitary function |
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| 130 | @ref LL_RCC_SetAHBPrescaler(). */ |
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| 131 | |||
| 132 | uint32_t APB1CLKDivider; /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK). |
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| 133 | This parameter can be a value of @ref RCC_LL_EC_APB1_DIV |
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| 134 | |||
| 135 | This feature can be modified afterwards using unitary function |
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| 136 | @ref LL_RCC_SetAPB1Prescaler(). */ |
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| 137 | |||
| 138 | uint32_t APB2CLKDivider; /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK). |
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| 139 | This parameter can be a value of @ref RCC_LL_EC_APB2_DIV |
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| 140 | |||
| 141 | This feature can be modified afterwards using unitary function |
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| 142 | @ref LL_RCC_SetAPB2Prescaler(). */ |
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| 143 | |||
| 144 | } LL_UTILS_ClkInitTypeDef; |
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| 145 | |||
| 146 | /** |
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| 147 | * @} |
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| 148 | */ |
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| 149 | |||
| 150 | /* Exported constants --------------------------------------------------------*/ |
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| 151 | /** @defgroup UTILS_LL_Exported_Constants UTILS Exported Constants |
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| 152 | * @{ |
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| 153 | */ |
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| 154 | |||
| 155 | /** @defgroup UTILS_EC_HSE_BYPASS HSE Bypass activation |
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| 156 | * @{ |
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| 157 | */ |
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| 158 | #define LL_UTILS_HSEBYPASS_OFF 0x00000000U /*!< HSE Bypass is not enabled */ |
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| 159 | #define LL_UTILS_HSEBYPASS_ON 0x00000001U /*!< HSE Bypass is enabled */ |
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| 160 | /** |
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| 161 | * @} |
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| 162 | */ |
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| 163 | |||
| 164 | /** |
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| 165 | * @} |
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| 166 | */ |
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| 167 | |||
| 168 | /* Exported macro ------------------------------------------------------------*/ |
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| 169 | |||
| 170 | /* Exported functions --------------------------------------------------------*/ |
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| 171 | /** @defgroup UTILS_LL_Exported_Functions UTILS Exported Functions |
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| 172 | * @{ |
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| 173 | */ |
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| 174 | |||
| 175 | /** @defgroup UTILS_EF_DEVICE_ELECTRONIC_SIGNATURE DEVICE ELECTRONIC SIGNATURE |
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| 176 | * @{ |
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| 177 | */ |
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| 178 | |||
| 179 | /** |
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| 180 | * @brief Get Word0 of the unique device identifier (UID based on 96 bits) |
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| 181 | * @retval UID[31:0] |
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| 182 | */ |
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| 183 | __STATIC_INLINE uint32_t LL_GetUID_Word0(void) |
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| 184 | { |
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| 185 | return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS))); |
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| 186 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * @brief Get Word1 of the unique device identifier (UID based on 96 bits) |
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| 190 | * @retval UID[63:32] |
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| 191 | */ |
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| 192 | __STATIC_INLINE uint32_t LL_GetUID_Word1(void) |
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| 193 | { |
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| 194 | return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 4U)))); |
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| 195 | } |
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| 196 | |||
| 197 | /** |
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| 198 | * @brief Get Word2 of the unique device identifier (UID based on 96 bits) |
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| 199 | * @retval UID[95:64] |
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| 200 | */ |
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| 201 | __STATIC_INLINE uint32_t LL_GetUID_Word2(void) |
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| 202 | { |
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| 203 | return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 8U)))); |
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| 204 | } |
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| 205 | |||
| 206 | /** |
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| 207 | * @brief Get Flash memory size |
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| 208 | * @note This bitfield indicates the size of the device Flash memory expressed in |
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| 209 | * Kbytes. As an example, 0x040 corresponds to 64 Kbytes. |
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| 210 | * @retval FLASH_SIZE[15:0]: Flash memory size |
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| 211 | */ |
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| 212 | __STATIC_INLINE uint32_t LL_GetFlashSize(void) |
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| 213 | { |
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| 214 | return (uint16_t)(READ_REG(*((uint32_t *)FLASHSIZE_BASE_ADDRESS))); |
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| 215 | } |
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| 216 | |||
| 217 | |||
| 218 | /** |
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| 219 | * @} |
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| 220 | */ |
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| 221 | |||
| 222 | /** @defgroup UTILS_LL_EF_DELAY DELAY |
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| 223 | * @{ |
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| 224 | */ |
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| 225 | |||
| 226 | /** |
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| 227 | * @brief This function configures the Cortex-M SysTick source of the time base. |
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| 228 | * @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro) |
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| 229 | * @note When a RTOS is used, it is recommended to avoid changing the SysTick |
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| 230 | * configuration by calling this function, for a delay use rather osDelay RTOS service. |
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| 231 | * @param Ticks Number of ticks |
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| 232 | * @retval None |
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| 233 | */ |
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| 234 | __STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks) |
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| 235 | { |
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| 236 | /* Configure the SysTick to have interrupt in 1ms time base */ |
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| 237 | SysTick->LOAD = (uint32_t)((HCLKFrequency / Ticks) - 1UL); /* set reload register */ |
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| 238 | SysTick->VAL = 0UL; /* Load the SysTick Counter Value */ |
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| 239 | SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | |
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| 240 | SysTick_CTRL_ENABLE_Msk; /* Enable the Systick Timer */ |
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| 241 | } |
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| 242 | |||
| 243 | void LL_Init1msTick(uint32_t HCLKFrequency); |
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| 244 | void LL_mDelay(uint32_t Delay); |
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| 245 | |||
| 246 | /** |
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| 247 | * @} |
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| 248 | */ |
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| 249 | |||
| 250 | /** @defgroup UTILS_EF_SYSTEM SYSTEM |
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| 251 | * @{ |
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| 252 | */ |
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| 253 | |||
| 254 | void LL_SetSystemCoreClock(uint32_t HCLKFrequency); |
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| 255 | ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, |
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| 256 | LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
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| 257 | ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass, |
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| 258 | LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct); |
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| 259 | |||
| 260 | /** |
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| 261 | * @} |
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| 262 | */ |
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| 263 | |||
| 264 | /** |
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| 265 | * @} |
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| 266 | */ |
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| 267 | |||
| 268 | /** |
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| 269 | * @} |
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| 270 | */ |
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| 271 | |||
| 272 | /** |
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| 273 | * @} |
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| 274 | */ |
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| 275 | |||
| 276 | #ifdef __cplusplus |
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| 277 | } |
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| 278 | #endif |
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| 279 | |||
| 280 | #endif /* __STM32F1xx_LL_UTILS_H */ |
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| 281 | |||
| 282 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |