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annotate Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_wwdg.h @ 489:0e7c16dd774d

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author heinrichsweikamp
date Mon, 29 Jun 2020 16:18:17 +0200
parents c78bcbd5deda
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_wwdg.h
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4 * @author MCD Application Team
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5 * @brief Header file of WWDG HAL module.
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6 ******************************************************************************
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7 * @attention
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8 *
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9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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10 *
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11 * Redistribution and use in source and binary forms, with or without modification,
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12 * are permitted provided that the following conditions are met:
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13 * 1. Redistributions of source code must retain the above copyright notice,
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14 * this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 * this list of conditions and the following disclaimer in the documentation
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17 * and/or other materials provided with the distribution.
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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19 * may be used to endorse or promote products derived from this software
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20 * without specific prior written permission.
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21 *
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
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33 ******************************************************************************
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34 */
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35
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36 /* Define to prevent recursive inclusion -------------------------------------*/
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37 #ifndef __STM32F4xx_HAL_WWDG_H
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38 #define __STM32F4xx_HAL_WWDG_H
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39
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40 #ifdef __cplusplus
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41 extern "C" {
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42 #endif
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43
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44 /* Includes ------------------------------------------------------------------*/
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45 #include "stm32f4xx_hal_def.h"
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46
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47 /** @addtogroup STM32F4xx_HAL_Driver
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48 * @{
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49 */
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50
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51 /** @addtogroup WWDG
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52 * @{
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53 */
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54
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55 /* Exported types ------------------------------------------------------------*/
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56 /** @defgroup WWDG_Exported_Types WWDG Exported Types
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57 * @{
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58 */
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59
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60 /**
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61 * @brief WWDG Init structure definition
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62 */
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63 typedef struct
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64 {
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65 uint32_t Prescaler; /*!< Specifies the prescaler value of the WWDG.
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66 This parameter can be a value of @ref WWDG_Prescaler */
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67
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68 uint32_t Window; /*!< Specifies the WWDG window value to be compared to the downcounter.
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69 This parameter must be a number Min_Data = 0x40 and Max_Data = 0x7F */
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70
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71 uint32_t Counter; /*!< Specifies the WWDG free-running downcounter value.
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72 This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */
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73
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74 uint32_t EWIMode ; /*!< Specifies if WWDG Early Wakeup Interupt is enable or not.
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75 This parameter can be a value of @ref WWDG_EWI_Mode */
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76
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77 }WWDG_InitTypeDef;
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78
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79 /**
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80 * @brief WWDG handle Structure definition
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81 */
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82 typedef struct
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83 {
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84 WWDG_TypeDef *Instance; /*!< Register base address */
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85
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86 WWDG_InitTypeDef Init; /*!< WWDG required parameters */
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87
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88 }WWDG_HandleTypeDef;
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89 /**
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90 * @}
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91 */
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92
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93 /* Exported constants --------------------------------------------------------*/
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94
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95 /** @defgroup WWDG_Exported_Constants WWDG Exported Constants
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96 * @{
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97 */
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98
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99 /** @defgroup WWDG_Interrupt_definition WWDG Interrupt definition
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100 * @{
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101 */
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102 #define WWDG_IT_EWI WWDG_CFR_EWI /*!< Early wakeup interrupt */
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103 /**
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104 * @}
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105 */
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106
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107 /** @defgroup WWDG_Flag_definition WWDG Flag definition
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108 * @brief WWDG Flag definition
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109 * @{
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110 */
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111 #define WWDG_FLAG_EWIF WWDG_SR_EWIF /*!< Early wakeup interrupt flag */
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112 /**
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113 * @}
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114 */
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115
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116 /** @defgroup WWDG_Prescaler WWDG Prescaler
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117 * @{
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118 */
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119 #define WWDG_PRESCALER_1 0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */
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120 #define WWDG_PRESCALER_2 WWDG_CFR_WDGTB0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
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121 #define WWDG_PRESCALER_4 WWDG_CFR_WDGTB1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
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122 #define WWDG_PRESCALER_8 WWDG_CFR_WDGTB /*!< WWDG counter clock = (PCLK1/4096)/8 */
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123 /**
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124 * @}
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125 */
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126
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127 /** @defgroup WWDG_EWI_Mode WWDG Early Wakeup Interrupt Mode
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128 * @{
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129 */
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130 #define WWDG_EWI_DISABLE 0x00000000U /*!< EWI Disable */
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131 #define WWDG_EWI_ENABLE WWDG_CFR_EWI /*!< EWI Enable */
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132 /**
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133 * @}
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134 */
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135
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136 /**
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137 * @}
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138 */
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139
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140 /* Private macros ------------------------------------------------------------*/
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141
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142 /** @defgroup WWDG_Private_Macros WWDG Private Macros
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143 * @{
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144 */
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145 #define IS_WWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == WWDG_PRESCALER_1) || \
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146 ((__PRESCALER__) == WWDG_PRESCALER_2) || \
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147 ((__PRESCALER__) == WWDG_PRESCALER_4) || \
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148 ((__PRESCALER__) == WWDG_PRESCALER_8))
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149
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150 #define IS_WWDG_WINDOW(__WINDOW__) (((__WINDOW__) >= WWDG_CFR_W_6) && ((__WINDOW__) <= WWDG_CFR_W))
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151
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152 #define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= WWDG_CR_T_6) && ((__COUNTER__) <= WWDG_CR_T))
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153
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154 #define IS_WWDG_EWI_MODE(__MODE__) (((__MODE__) == WWDG_EWI_ENABLE) || \
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155 ((__MODE__) == WWDG_EWI_DISABLE))
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156 /**
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157 * @}
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158 */
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159
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160
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161 /* Exported macros ------------------------------------------------------------*/
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162
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163 /** @defgroup WWDG_Exported_Macros WWDG Exported Macros
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164 * @{
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165 */
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166
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167 /**
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168 * @brief Enables the WWDG peripheral.
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169 * @param __HANDLE__ WWDG handle
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170 * @retval None
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171 */
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172 #define __HAL_WWDG_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA)
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173
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174 /**
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175 * @brief Enables the WWDG early wakeup interrupt.
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176 * @param __HANDLE__ WWDG handle
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177 * @param __INTERRUPT__ specifies the interrupt to enable.
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178 * This parameter can be one of the following values:
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179 * @arg WWDG_IT_EWI: Early wakeup interrupt
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180 * @note Once enabled this interrupt cannot be disabled except by a system reset.
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181 * @retval None
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182 */
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183 #define __HAL_WWDG_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CFR, (__INTERRUPT__))
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184
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185 /**
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186 * @brief Checks whether the selected WWDG interrupt has occurred or not.
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187 * @param __HANDLE__ WWDG handle
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188 * @param __INTERRUPT__ specifies the it to check.
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189 * This parameter can be one of the following values:
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190 * @arg WWDG_FLAG_EWIF: Early wakeup interrupt IT
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191 * @retval The new state of WWDG_FLAG (SET or RESET).
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192 */
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193 #define __HAL_WWDG_GET_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_GET_FLAG((__HANDLE__),(__INTERRUPT__))
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194
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195 /** @brief Clear the WWDG's interrupt pending bits
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196 * bits to clear the selected interrupt pending bits.
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197 * @param __HANDLE__ WWDG handle
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198 * @param __INTERRUPT__ specifies the interrupt pending bit to clear.
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199 * This parameter can be one of the following values:
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200 * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
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201 */
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202 #define __HAL_WWDG_CLEAR_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_CLEAR_FLAG((__HANDLE__), (__INTERRUPT__))
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203
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204 /**
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205 * @brief Check whether the specified WWDG flag is set or not.
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206 * @param __HANDLE__ WWDG handle
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207 * @param __FLAG__ specifies the flag to check.
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208 * This parameter can be one of the following values:
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209 * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
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210 * @retval The new state of WWDG_FLAG (SET or RESET).
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211 */
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212 #define __HAL_WWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
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213
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214 /**
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215 * @brief Clears the WWDG's pending flags.
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216 * @param __HANDLE__ WWDG handle
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217 * @param __FLAG__ specifies the flag to clear.
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218 * This parameter can be one of the following values:
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219 * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
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220 * @retval None
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221 */
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222 #define __HAL_WWDG_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR) = ~(__FLAG__))
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223
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224 /** @brief Checks if the specified WWDG interrupt source is enabled or disabled.
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225 * @param __HANDLE__ WWDG Handle.
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226 * @param __INTERRUPT__ specifies the WWDG interrupt source to check.
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227 * This parameter can be one of the following values:
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228 * @arg WWDG_IT_EWI: Early Wakeup Interrupt
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229 * @retval state of __INTERRUPT__ (TRUE or FALSE).
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230 */
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231 #define __HAL_WWDG_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CFR & (__INTERRUPT__)) == (__INTERRUPT__))
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232
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233 /**
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234 * @}
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235 */
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236
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237 /* Exported functions --------------------------------------------------------*/
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238 /** @addtogroup WWDG_Exported_Functions
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239 * @{
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240 */
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241
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242 /** @addtogroup WWDG_Exported_Functions_Group1
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243 * @{
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244 */
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245 /* Initialization/de-initialization functions **********************************/
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246 HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg);
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247 void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg);
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248 /**
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249 * @}
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250 */
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251
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252 /** @addtogroup WWDG_Exported_Functions_Group2
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253 * @{
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254 */
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255 /* I/O operation functions ******************************************************/
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256 HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg);
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257 void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg);
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258 void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef* hwwdg);
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259 /**
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260 * @}
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261 */
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262
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263 /**
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264 * @}
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265 */
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266
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267 /**
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268 * @}
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269 */
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270
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271 /**
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272 * @}
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273 */
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274
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275 #ifdef __cplusplus
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276 }
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277 #endif
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278
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279 #endif /* __STM32F4xx_HAL_WWDG_H */
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280
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281 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/