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annotate Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_wwdg.h @ 319:d8e86af78474 fix-version

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bugfix: correct packed main version number in dive header This fixes a rather mysterious bug. Users report that up to 1.3.5 beta, a correct version number is shown in libdivecomputer based applications (like in Subsurface, in the extra data tab). Careful examining the code in both libdivecomputer and the firmware shows a subtle error in the bit mask and shift operation to pack a full X.Y.Z.beta version number in 2 bytes (as is available in the dive header) in the firmware end (as the libdivecomputer code looks sane, assuming this is the right way to pack things). Likely, this bug crept in in the conversion from the closed source Keil period into the open source GCC setup of the code base. So its impossible to document the exact history of this problem here. Further notice that the main version number is only 1 of 3 version numbers, denoting the full version of the firmware (besides Font and RTE). Finally notice that this way of packing is limited to 2^5 bits (decimal 32), so we could easily build a 1.4.21, but not a 1.4.55. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 19 Jun 2019 14:31:50 +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****/