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annotate Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_gpio.h @ 697:d55817a11f4c

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Improvment key event detection: In previous version the evaluation of a button event was called in the 100ms callback. Assuming an event is signaled at the in line for 100ms there is a potential risk to loose a button event. To avoid this scenarion the evaluation function was moved into the extint callback (called ~50+xms) and the line readback tim was reduced to 40ms. Reminder: This function is not called in the main loop because the main loop is not executed in UART mode => movement would cause key events to not beeing detected
author Ideenmodellierer
date Sun, 25 Sep 2022 21:09:18 +0200
parents c78bcbd5deda
children
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128
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_gpio.h
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4 * @author MCD Application Team
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5 * @brief Header file of GPIO 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_GPIO_H
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38 #define __STM32F4xx_HAL_GPIO_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 GPIO
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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 GPIO_Exported_Types GPIO 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 GPIO 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 Pin; /*!< Specifies the GPIO pins to be configured.
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66 This parameter can be any value of @ref GPIO_pins_define */
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67
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68 uint32_t Mode; /*!< Specifies the operating mode for the selected pins.
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69 This parameter can be a value of @ref GPIO_mode_define */
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70
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71 uint32_t Pull; /*!< Specifies the Pull-up or Pull-Down activation for the selected pins.
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72 This parameter can be a value of @ref GPIO_pull_define */
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73
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74 uint32_t Speed; /*!< Specifies the speed for the selected pins.
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75 This parameter can be a value of @ref GPIO_speed_define */
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76
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77 uint32_t Alternate; /*!< Peripheral to be connected to the selected pins.
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78 This parameter can be a value of @ref GPIO_Alternate_function_selection */
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79 }GPIO_InitTypeDef;
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80
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81 /**
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82 * @brief GPIO Bit SET and Bit RESET enumeration
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83 */
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84 typedef enum
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85 {
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86 GPIO_PIN_RESET = 0,
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87 GPIO_PIN_SET
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88 }GPIO_PinState;
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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 GPIO_Exported_Constants GPIO Exported Constants
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96 * @{
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97 */
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98
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99 /** @defgroup GPIO_pins_define GPIO pins define
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100 * @{
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101 */
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102 #define GPIO_PIN_0 ((uint16_t)0x0001) /* Pin 0 selected */
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103 #define GPIO_PIN_1 ((uint16_t)0x0002) /* Pin 1 selected */
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104 #define GPIO_PIN_2 ((uint16_t)0x0004) /* Pin 2 selected */
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105 #define GPIO_PIN_3 ((uint16_t)0x0008) /* Pin 3 selected */
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106 #define GPIO_PIN_4 ((uint16_t)0x0010) /* Pin 4 selected */
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107 #define GPIO_PIN_5 ((uint16_t)0x0020) /* Pin 5 selected */
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108 #define GPIO_PIN_6 ((uint16_t)0x0040) /* Pin 6 selected */
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109 #define GPIO_PIN_7 ((uint16_t)0x0080) /* Pin 7 selected */
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110 #define GPIO_PIN_8 ((uint16_t)0x0100) /* Pin 8 selected */
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111 #define GPIO_PIN_9 ((uint16_t)0x0200) /* Pin 9 selected */
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112 #define GPIO_PIN_10 ((uint16_t)0x0400) /* Pin 10 selected */
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113 #define GPIO_PIN_11 ((uint16_t)0x0800) /* Pin 11 selected */
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114 #define GPIO_PIN_12 ((uint16_t)0x1000) /* Pin 12 selected */
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115 #define GPIO_PIN_13 ((uint16_t)0x2000) /* Pin 13 selected */
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116 #define GPIO_PIN_14 ((uint16_t)0x4000) /* Pin 14 selected */
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117 #define GPIO_PIN_15 ((uint16_t)0x8000) /* Pin 15 selected */
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118 #define GPIO_PIN_All ((uint16_t)0xFFFF) /* All pins selected */
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119
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120 #define GPIO_PIN_MASK 0x0000FFFFU /* PIN mask for assert test */
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121 /**
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122 * @}
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123 */
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124
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125 /** @defgroup GPIO_mode_define GPIO mode define
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126 * @brief GPIO Configuration Mode
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127 * Elements values convention: 0xX0yz00YZ
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128 * - X : GPIO mode or EXTI Mode
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129 * - y : External IT or Event trigger detection
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130 * - z : IO configuration on External IT or Event
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131 * - Y : Output type (Push Pull or Open Drain)
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132 * - Z : IO Direction mode (Input, Output, Alternate or Analog)
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133 * @{
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134 */
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135 #define GPIO_MODE_INPUT 0x00000000U /*!< Input Floating Mode */
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136 #define GPIO_MODE_OUTPUT_PP 0x00000001U /*!< Output Push Pull Mode */
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137 #define GPIO_MODE_OUTPUT_OD 0x00000011U /*!< Output Open Drain Mode */
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138 #define GPIO_MODE_AF_PP 0x00000002U /*!< Alternate Function Push Pull Mode */
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139 #define GPIO_MODE_AF_OD 0x00000012U /*!< Alternate Function Open Drain Mode */
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140
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141 #define GPIO_MODE_ANALOG 0x00000003U /*!< Analog Mode */
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142
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143 #define GPIO_MODE_IT_RISING 0x10110000U /*!< External Interrupt Mode with Rising edge trigger detection */
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144 #define GPIO_MODE_IT_FALLING 0x10210000U /*!< External Interrupt Mode with Falling edge trigger detection */
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145 #define GPIO_MODE_IT_RISING_FALLING 0x10310000U /*!< External Interrupt Mode with Rising/Falling edge trigger detection */
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146
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147 #define GPIO_MODE_EVT_RISING 0x10120000U /*!< External Event Mode with Rising edge trigger detection */
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148 #define GPIO_MODE_EVT_FALLING 0x10220000U /*!< External Event Mode with Falling edge trigger detection */
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149 #define GPIO_MODE_EVT_RISING_FALLING 0x10320000U /*!< External Event Mode with Rising/Falling edge trigger detection */
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150 /**
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151 * @}
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152 */
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153
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154 /** @defgroup GPIO_speed_define GPIO speed define
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155 * @brief GPIO Output Maximum frequency
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156 * @{
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157 */
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158 #define GPIO_SPEED_FREQ_LOW 0x00000000U /*!< IO works at 2 MHz, please refer to the product datasheet */
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159 #define GPIO_SPEED_FREQ_MEDIUM 0x00000001U /*!< range 12,5 MHz to 50 MHz, please refer to the product datasheet */
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160 #define GPIO_SPEED_FREQ_HIGH 0x00000002U /*!< range 25 MHz to 100 MHz, please refer to the product datasheet */
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161 #define GPIO_SPEED_FREQ_VERY_HIGH 0x00000003U /*!< range 50 MHz to 200 MHz, please refer to the product datasheet */
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162 /**
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163 * @}
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164 */
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165
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166 /** @defgroup GPIO_pull_define GPIO pull define
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167 * @brief GPIO Pull-Up or Pull-Down Activation
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168 * @{
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169 */
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170 #define GPIO_NOPULL 0x00000000U /*!< No Pull-up or Pull-down activation */
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171 #define GPIO_PULLUP 0x00000001U /*!< Pull-up activation */
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172 #define GPIO_PULLDOWN 0x00000002U /*!< Pull-down activation */
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173 /**
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174 * @}
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175 */
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176
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177 /**
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178 * @}
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179 */
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180
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181 /* Exported macro ------------------------------------------------------------*/
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182 /** @defgroup GPIO_Exported_Macros GPIO Exported Macros
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183 * @{
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184 */
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185
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186 /**
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187 * @brief Checks whether the specified EXTI line flag is set or not.
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188 * @param __EXTI_LINE__ specifies the EXTI line flag to check.
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189 * This parameter can be GPIO_PIN_x where x can be(0..15)
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190 * @retval The new state of __EXTI_LINE__ (SET or RESET).
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191 */
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192 #define __HAL_GPIO_EXTI_GET_FLAG(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
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193
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194 /**
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195 * @brief Clears the EXTI's line pending flags.
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196 * @param __EXTI_LINE__ specifies the EXTI lines flags to clear.
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197 * This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
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198 * @retval None
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199 */
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200 #define __HAL_GPIO_EXTI_CLEAR_FLAG(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
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201
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202 /**
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203 * @brief Checks whether the specified EXTI line is asserted or not.
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204 * @param __EXTI_LINE__ specifies the EXTI line to check.
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205 * This parameter can be GPIO_PIN_x where x can be(0..15)
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206 * @retval The new state of __EXTI_LINE__ (SET or RESET).
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207 */
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208 #define __HAL_GPIO_EXTI_GET_IT(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
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209
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210 /**
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211 * @brief Clears the EXTI's line pending bits.
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212 * @param __EXTI_LINE__ specifies the EXTI lines to clear.
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213 * This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
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214 * @retval None
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215 */
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216 #define __HAL_GPIO_EXTI_CLEAR_IT(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
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217
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218 /**
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219 * @brief Generates a Software interrupt on selected EXTI line.
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220 * @param __EXTI_LINE__ specifies the EXTI line to check.
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221 * This parameter can be GPIO_PIN_x where x can be(0..15)
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222 * @retval None
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223 */
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224 #define __HAL_GPIO_EXTI_GENERATE_SWIT(__EXTI_LINE__) (EXTI->SWIER |= (__EXTI_LINE__))
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225 /**
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226 * @}
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227 */
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228
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229 /* Include GPIO HAL Extension module */
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230 #include "stm32f4xx_hal_gpio_ex.h"
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231
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232 /* Exported functions --------------------------------------------------------*/
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233 /** @addtogroup GPIO_Exported_Functions
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234 * @{
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235 */
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236
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237 /** @addtogroup GPIO_Exported_Functions_Group1
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238 * @{
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239 */
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240 /* Initialization and de-initialization functions *****************************/
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241 void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init);
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242 void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin);
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243 /**
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244 * @}
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245 */
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246
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247 /** @addtogroup GPIO_Exported_Functions_Group2
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248 * @{
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249 */
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250 /* IO operation functions *****************************************************/
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251 GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
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252 void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState);
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253 void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
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254 HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
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255 void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin);
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256 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin);
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257
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258 /**
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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 /* Private types -------------------------------------------------------------*/
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266 /* Private variables ---------------------------------------------------------*/
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267 /* Private constants ---------------------------------------------------------*/
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268 /** @defgroup GPIO_Private_Constants GPIO Private Constants
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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
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276 /* Private macros ------------------------------------------------------------*/
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277 /** @defgroup GPIO_Private_Macros GPIO Private Macros
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278 * @{
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279 */
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280 #define IS_GPIO_PIN_ACTION(ACTION) (((ACTION) == GPIO_PIN_RESET) || ((ACTION) == GPIO_PIN_SET))
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281 #define IS_GPIO_PIN(PIN) ((((PIN) & GPIO_PIN_MASK ) != 0x00U) && (((PIN) & ~GPIO_PIN_MASK) == 0x00U))
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282 #define IS_GPIO_MODE(MODE) (((MODE) == GPIO_MODE_INPUT) ||\
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283 ((MODE) == GPIO_MODE_OUTPUT_PP) ||\
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284 ((MODE) == GPIO_MODE_OUTPUT_OD) ||\
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285 ((MODE) == GPIO_MODE_AF_PP) ||\
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286 ((MODE) == GPIO_MODE_AF_OD) ||\
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287 ((MODE) == GPIO_MODE_IT_RISING) ||\
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288 ((MODE) == GPIO_MODE_IT_FALLING) ||\
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289 ((MODE) == GPIO_MODE_IT_RISING_FALLING) ||\
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290 ((MODE) == GPIO_MODE_EVT_RISING) ||\
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291 ((MODE) == GPIO_MODE_EVT_FALLING) ||\
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292 ((MODE) == GPIO_MODE_EVT_RISING_FALLING) ||\
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293 ((MODE) == GPIO_MODE_ANALOG))
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294 #define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_SPEED_FREQ_LOW) || ((SPEED) == GPIO_SPEED_FREQ_MEDIUM) || \
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295 ((SPEED) == GPIO_SPEED_FREQ_HIGH) || ((SPEED) == GPIO_SPEED_FREQ_VERY_HIGH))
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296 #define IS_GPIO_PULL(PULL) (((PULL) == GPIO_NOPULL) || ((PULL) == GPIO_PULLUP) || \
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297 ((PULL) == GPIO_PULLDOWN))
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298 /**
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299 * @}
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300 */
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301
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302 /* Private functions ---------------------------------------------------------*/
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303 /** @defgroup GPIO_Private_Functions GPIO Private Functions
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304 * @{
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305 */
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306
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307 /**
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308 * @}
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309 */
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310
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311 /**
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312 * @}
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313 */
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314
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315 /**
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316 * @}
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317 */
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318
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319 #ifdef __cplusplus
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320 }
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321 #endif
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322
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323 #endif /* __STM32F4xx_HAL_GPIO_H */
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324
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325 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/