1 | /** |
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2 | ****************************************************************************** |
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3 | * @file stm32f7xx_hal_gpio.c |
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4 | * @author MCD Application Team |
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5 | * @version V1.0.1 |
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6 | * @date 25-June-2015 |
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7 | * @brief GPIO HAL module driver. |
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8 | * This file provides firmware functions to manage the following |
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9 | * functionalities of the General Purpose Input/Output (GPIO) peripheral: |
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10 | * + Initialization and de-initialization functions |
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11 | * + IO operation functions |
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12 | * |
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13 | @verbatim |
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14 | ============================================================================== |
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15 | ##### GPIO Peripheral features ##### |
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16 | ============================================================================== |
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17 | [..] |
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18 | Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each |
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19 | port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software |
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20 | in several modes: |
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21 | (+) Input mode |
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22 | (+) Analog mode |
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23 | (+) Output mode |
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24 | (+) Alternate function mode |
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25 | (+) External interrupt/event lines |
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26 | |
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27 | [..] |
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28 | During and just after reset, the alternate functions and external interrupt |
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29 | lines are not active and the I/O ports are configured in input floating mode. |
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30 | |
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31 | [..] |
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32 | All GPIO pins have weak internal pull-up and pull-down resistors, which can be |
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33 | activated or not. |
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34 | |
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35 | [..] |
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36 | In Output or Alternate mode, each IO can be configured on open-drain or push-pull |
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37 | type and the IO speed can be selected depending on the VDD value. |
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38 | |
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39 | [..] |
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40 | All ports have external interrupt/event capability. To use external interrupt |
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41 | lines, the port must be configured in input mode. All available GPIO pins are |
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42 | connected to the 16 external interrupt/event lines from EXTI0 to EXTI15. |
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43 | |
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44 | [..] |
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45 | The external interrupt/event controller consists of up to 23 edge detectors |
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46 | (16 lines are connected to GPIO) for generating event/interrupt requests (each |
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47 | input line can be independently configured to select the type (interrupt or event) |
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48 | and the corresponding trigger event (rising or falling or both). Each line can |
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49 | also be masked independently. |
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50 | |
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51 | ##### How to use this driver ##### |
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52 | ============================================================================== |
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53 | [..] |
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54 | (#) Enable the GPIO AHB clock using the following function: __HAL_RCC_GPIOx_CLK_ENABLE(). |
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55 | |
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56 | (#) Configure the GPIO pin(s) using HAL_GPIO_Init(). |
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57 | (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure |
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58 | (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef |
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59 | structure. |
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60 | (++) In case of Output or alternate function mode selection: the speed is |
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61 | configured through "Speed" member from GPIO_InitTypeDef structure. |
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62 | (++) In alternate mode is selection, the alternate function connected to the IO |
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63 | is configured through "Alternate" member from GPIO_InitTypeDef structure. |
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64 | (++) Analog mode is required when a pin is to be used as ADC channel |
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65 | or DAC output. |
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66 | (++) In case of external interrupt/event selection the "Mode" member from |
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67 | GPIO_InitTypeDef structure select the type (interrupt or event) and |
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68 | the corresponding trigger event (rising or falling or both). |
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69 | |
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70 | (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority |
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71 | mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using |
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72 | HAL_NVIC_EnableIRQ(). |
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73 | |
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74 | (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin(). |
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75 | |
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76 | (#) To set/reset the level of a pin configured in output mode use |
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77 | HAL_GPIO_WritePin()/HAL_GPIO_TogglePin(). |
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78 | |
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79 | (#) To lock pin configuration until next reset use HAL_GPIO_LockPin(). |
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80 | |
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81 | |
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82 | (#) During and just after reset, the alternate functions are not |
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83 | active and the GPIO pins are configured in input floating mode (except JTAG |
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84 | pins). |
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85 | |
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86 | (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose |
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87 | (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has |
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88 | priority over the GPIO function. |
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89 | |
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90 | (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as |
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91 | general purpose PH0 and PH1, respectively, when the HSE oscillator is off. |
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92 | The HSE has priority over the GPIO function. |
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93 | |
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94 | @endverbatim |
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95 | ****************************************************************************** |
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96 | * @attention |
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97 | * |
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98 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
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99 | * |
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100 | * Redistribution and use in source and binary forms, with or without modification, |
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101 | * are permitted provided that the following conditions are met: |
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102 | * 1. Redistributions of source code must retain the above copyright notice, |
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103 | * this list of conditions and the following disclaimer. |
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104 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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105 | * this list of conditions and the following disclaimer in the documentation |
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106 | * and/or other materials provided with the distribution. |
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107 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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108 | * may be used to endorse or promote products derived from this software |
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109 | * without specific prior written permission. |
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110 | * |
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111 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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112 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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113 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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114 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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115 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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116 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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117 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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118 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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119 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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120 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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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 | /* Includes ------------------------------------------------------------------*/ |
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126 | #include "stm32f7xx_hal.h" |
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127 | |
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128 | /** @addtogroup STM32F7xx_HAL_Driver |
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129 | * @{ |
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130 | */ |
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131 | |
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132 | /** @defgroup GPIO GPIO |
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133 | * @brief GPIO HAL module driver |
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134 | * @{ |
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135 | */ |
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136 | |
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137 | #ifdef HAL_GPIO_MODULE_ENABLED |
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138 | |
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139 | /* Private typedef -----------------------------------------------------------*/ |
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140 | /* Private define ------------------------------------------------------------*/ |
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141 | /** @addtogroup GPIO_Private_Constants GPIO Private Constants |
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142 | * @{ |
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143 | */ |
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144 | #define GPIO_MODE ((uint32_t)0x00000003) |
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145 | #define EXTI_MODE ((uint32_t)0x10000000) |
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146 | #define GPIO_MODE_IT ((uint32_t)0x00010000) |
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147 | #define GPIO_MODE_EVT ((uint32_t)0x00020000) |
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148 | #define RISING_EDGE ((uint32_t)0x00100000) |
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149 | #define FALLING_EDGE ((uint32_t)0x00200000) |
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150 | #define GPIO_OUTPUT_TYPE ((uint32_t)0x00000010) |
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151 | |
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152 | #define GPIO_NUMBER ((uint32_t)16) |
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153 | /** |
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154 | * @} |
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155 | */ |
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156 | /* Private macro -------------------------------------------------------------*/ |
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157 | /* Private variables ---------------------------------------------------------*/ |
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158 | /* Private function prototypes -----------------------------------------------*/ |
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159 | /* Private functions ---------------------------------------------------------*/ |
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160 | /* Exported functions --------------------------------------------------------*/ |
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161 | /** @defgroup GPIO_Exported_Functions GPIO Exported Functions |
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162 | * @{ |
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163 | */ |
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164 | |
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165 | /** @defgroup GPIO_Exported_Functions_Group1 Initialization and de-initialization functions |
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166 | * @brief Initialization and Configuration functions |
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167 | * |
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168 | @verbatim |
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169 | =============================================================================== |
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170 | ##### Initialization and de-initialization functions ##### |
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171 | =============================================================================== |
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172 | [..] |
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173 | This section provides functions allowing to initialize and de-initialize the GPIOs |
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174 | to be ready for use. |
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175 | |
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176 | @endverbatim |
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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 | * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init. |
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182 | * @param GPIOx: where x can be (A..K) to select the GPIO peripheral. |
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183 | * @param GPIO_Init: pointer to a GPIO_InitTypeDef structure that contains |
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184 | * the configuration information for the specified GPIO peripheral. |
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185 | * @retval None |
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186 | */ |
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187 | void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init) |
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188 | { |
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189 | uint32_t position = 0x00; |
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190 | uint32_t ioposition = 0x00; |
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191 | uint32_t iocurrent = 0x00; |
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192 | uint32_t temp = 0x00; |
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193 | |
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194 | /* Check the parameters */ |
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195 | assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); |
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196 | assert_param(IS_GPIO_PIN(GPIO_Init->Pin)); |
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197 | assert_param(IS_GPIO_MODE(GPIO_Init->Mode)); |
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198 | assert_param(IS_GPIO_PULL(GPIO_Init->Pull)); |
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199 | |
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200 | /* Configure the port pins */ |
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201 | for(position = 0; position < GPIO_NUMBER; position++) |
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202 | { |
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203 | /* Get the IO position */ |
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204 | ioposition = ((uint32_t)0x01) << position; |
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205 | /* Get the current IO position */ |
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206 | iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition; |
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207 | |
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208 | if(iocurrent == ioposition) |
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209 | { |
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210 | /*--------------------- GPIO Mode Configuration ------------------------*/ |
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211 | /* In case of Alternate function mode selection */ |
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212 | if((GPIO_Init->Mode == GPIO_MODE_AF_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_OD)) |
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213 | { |
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214 | /* Check the Alternate function parameter */ |
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215 | assert_param(IS_GPIO_AF(GPIO_Init->Alternate)); |
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216 | |
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217 | /* Configure Alternate function mapped with the current IO */ |
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218 | temp = GPIOx->AFR[position >> 3]; |
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219 | temp &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ; |
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220 | temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & (uint32_t)0x07) * 4)); |
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221 | GPIOx->AFR[position >> 3] = temp; |
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222 | } |
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223 | |
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224 | /* Configure IO Direction mode (Input, Output, Alternate or Analog) */ |
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225 | temp = GPIOx->MODER; |
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226 | temp &= ~(GPIO_MODER_MODER0 << (position * 2)); |
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227 | temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2)); |
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228 | GPIOx->MODER = temp; |
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229 | |
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230 | /* In case of Output or Alternate function mode selection */ |
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231 | if((GPIO_Init->Mode == GPIO_MODE_OUTPUT_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_PP) || |
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232 | (GPIO_Init->Mode == GPIO_MODE_OUTPUT_OD) || (GPIO_Init->Mode == GPIO_MODE_AF_OD)) |
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233 | { |
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234 | /* Check the Speed parameter */ |
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235 | assert_param(IS_GPIO_SPEED(GPIO_Init->Speed)); |
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236 | /* Configure the IO Speed */ |
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237 | temp = GPIOx->OSPEEDR; |
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238 | temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2)); |
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239 | temp |= (GPIO_Init->Speed << (position * 2)); |
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240 | GPIOx->OSPEEDR = temp; |
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241 | |
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242 | /* Configure the IO Output Type */ |
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243 | temp = GPIOx->OTYPER; |
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244 | temp &= ~(GPIO_OTYPER_OT_0 << position) ; |
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245 | temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4) << position); |
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246 | GPIOx->OTYPER = temp; |
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247 | } |
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248 | |
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249 | /* Activate the Pull-up or Pull down resistor for the current IO */ |
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250 | temp = GPIOx->PUPDR; |
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251 | temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2)); |
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252 | temp |= ((GPIO_Init->Pull) << (position * 2)); |
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253 | GPIOx->PUPDR = temp; |
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254 | |
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255 | /*--------------------- EXTI Mode Configuration ------------------------*/ |
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256 | /* Configure the External Interrupt or event for the current IO */ |
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257 | if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE) |
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258 | { |
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259 | /* Enable SYSCFG Clock */ |
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260 | __HAL_RCC_SYSCFG_CLK_ENABLE(); |
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261 | |
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262 | temp = SYSCFG->EXTICR[position >> 2]; |
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263 | temp &= ~(((uint32_t)0x0F) << (4 * (position & 0x03))); |
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264 | temp |= ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03))); |
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265 | SYSCFG->EXTICR[position >> 2] = temp; |
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266 | |
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267 | /* Clear EXTI line configuration */ |
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268 | temp = EXTI->IMR; |
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269 | temp &= ~((uint32_t)iocurrent); |
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270 | if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT) |
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271 | { |
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272 | temp |= iocurrent; |
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273 | } |
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274 | EXTI->IMR = temp; |
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275 | |
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276 | temp = EXTI->EMR; |
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277 | temp &= ~((uint32_t)iocurrent); |
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278 | if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT) |
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279 | { |
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280 | temp |= iocurrent; |
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281 | } |
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282 | EXTI->EMR = temp; |
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283 | |
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284 | /* Clear Rising Falling edge configuration */ |
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285 | temp = EXTI->RTSR; |
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286 | temp &= ~((uint32_t)iocurrent); |
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287 | if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE) |
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288 | { |
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289 | temp |= iocurrent; |
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290 | } |
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291 | EXTI->RTSR = temp; |
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292 | |
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293 | temp = EXTI->FTSR; |
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294 | temp &= ~((uint32_t)iocurrent); |
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295 | if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE) |
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296 | { |
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297 | temp |= iocurrent; |
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298 | } |
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299 | EXTI->FTSR = temp; |
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300 | } |
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301 | } |
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302 | } |
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303 | } |
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304 | |
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305 | /** |
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306 | * @brief De-initializes the GPIOx peripheral registers to their default reset values. |
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307 | * @param GPIOx: where x can be (A..K) to select the GPIO peripheral. |
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308 | * @param GPIO_Pin: specifies the port bit to be written. |
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309 | * This parameter can be one of GPIO_PIN_x where x can be (0..15). |
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310 | * @retval None |
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311 | */ |
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312 | void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin) |
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313 | { |
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314 | uint32_t position; |
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315 | uint32_t ioposition = 0x00; |
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316 | uint32_t iocurrent = 0x00; |
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317 | uint32_t tmp = 0x00; |
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318 | |
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319 | /* Check the parameters */ |
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320 | assert_param(IS_GPIO_ALL_INSTANCE(GPIOx)); |
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321 | |
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322 | /* Configure the port pins */ |
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323 | for(position = 0; position < GPIO_NUMBER; position++) |
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324 | { |
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325 | /* Get the IO position */ |
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326 | ioposition = ((uint32_t)0x01) << position; |
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327 | /* Get the current IO position */ |
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328 | iocurrent = (GPIO_Pin) & ioposition; |
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329 | |
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330 | if(iocurrent == ioposition) |
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331 | { |
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332 | /*------------------------- GPIO Mode Configuration --------------------*/ |
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333 | /* Configure IO Direction in Input Floating Mode */ |
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334 | GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (position * 2)); |
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335 | |
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336 | /* Configure the default Alternate Function in current IO */ |
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337 | GPIOx->AFR[position >> 3] &= ~((uint32_t)0xF << ((uint32_t)(position & (uint32_t)0x07) * 4)) ; |
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338 | |
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339 | /* Configure the default value for IO Speed */ |
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340 | GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2)); |
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341 | |
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342 | /* Configure the default value IO Output Type */ |
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343 | GPIOx->OTYPER &= ~(GPIO_OTYPER_OT_0 << position) ; |
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344 | |
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345 | /* Deactivate the Pull-up and Pull-down resistor for the current IO */ |
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346 | GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << (position * 2)); |
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347 | |
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348 | /*------------------------- EXTI Mode Configuration --------------------*/ |
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349 | tmp = SYSCFG->EXTICR[position >> 2]; |
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350 | tmp &= (((uint32_t)0x0F) << (4 * (position & 0x03))); |
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351 | if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03)))) |
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352 | { |
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353 | /* Configure the External Interrupt or event for the current IO */ |
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354 | tmp = ((uint32_t)0x0F) << (4 * (position & 0x03)); |
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355 | SYSCFG->EXTICR[position >> 2] &= ~tmp; |
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356 | |
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357 | /* Clear EXTI line configuration */ |
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358 | EXTI->IMR &= ~((uint32_t)iocurrent); |
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359 | EXTI->EMR &= ~((uint32_t)iocurrent); |
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360 | |
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361 | /* Clear Rising Falling edge configuration */ |
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362 | EXTI->RTSR &= ~((uint32_t)iocurrent); |
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363 | EXTI->FTSR &= ~((uint32_t)iocurrent); |
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364 | } |
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365 | } |
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366 | } |
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367 | } |
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368 | |
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369 | /** |
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370 | * @} |
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371 | */ |
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372 | |
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373 | /** @defgroup GPIO_Exported_Functions_Group2 IO operation functions |
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374 | * @brief GPIO Read and Write |
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375 | * |
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376 | @verbatim |
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377 | =============================================================================== |
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378 | ##### IO operation functions ##### |
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379 | =============================================================================== |
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380 | |
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381 | @endverbatim |
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382 | * @{ |
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383 | */ |
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384 | |
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385 | /** |
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386 | * @brief Reads the specified input port pin. |
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387 | * @param GPIOx: where x can be (A..K) to select the GPIO peripheral. |
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388 | * @param GPIO_Pin: specifies the port bit to read. |
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389 | * This parameter can be GPIO_PIN_x where x can be (0..15). |
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390 | * @retval The input port pin value. |
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391 | */ |
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392 | GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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393 | { |
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394 | GPIO_PinState bitstatus; |
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395 | |
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396 | /* Check the parameters */ |
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397 | assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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398 | |
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399 | if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET) |
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400 | { |
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401 | bitstatus = GPIO_PIN_SET; |
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402 | } |
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403 | else |
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404 | { |
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405 | bitstatus = GPIO_PIN_RESET; |
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406 | } |
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407 | return bitstatus; |
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408 | } |
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409 | |
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410 | /** |
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411 | * @brief Sets or clears the selected data port bit. |
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412 | * |
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413 | * @note This function uses GPIOx_BSRR register to allow atomic read/modify |
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414 | * accesses. In this way, there is no risk of an IRQ occurring between |
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415 | * the read and the modify access. |
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416 | * |
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417 | * @param GPIOx: where x can be (A..K) to select the GPIO peripheral. |
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418 | * @param GPIO_Pin: specifies the port bit to be written. |
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419 | * This parameter can be one of GPIO_PIN_x where x can be (0..15). |
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420 | * @param PinState: specifies the value to be written to the selected bit. |
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421 | * This parameter can be one of the GPIO_PinState enum values: |
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422 | * @arg GPIO_PIN_RESET: to clear the port pin |
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423 | * @arg GPIO_PIN_SET: to set the port pin |
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424 | * @retval None |
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425 | */ |
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426 | void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState) |
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427 | { |
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428 | /* Check the parameters */ |
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429 | assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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430 | assert_param(IS_GPIO_PIN_ACTION(PinState)); |
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431 | |
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432 | if(PinState != GPIO_PIN_RESET) |
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433 | { |
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434 | GPIOx->BSRR = GPIO_Pin; |
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435 | } |
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436 | else |
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437 | { |
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438 | GPIOx->BSRR = (uint32_t)GPIO_Pin << 16; |
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439 | } |
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440 | } |
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441 | |
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442 | /** |
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443 | * @brief Toggles the specified GPIO pins. |
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444 | * @param GPIOx: Where x can be (A..I) to select the GPIO peripheral. |
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445 | * @param GPIO_Pin: Specifies the pins to be toggled. |
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446 | * @retval None |
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447 | */ |
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448 | void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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449 | { |
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450 | /* Check the parameters */ |
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451 | assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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452 | |
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453 | GPIOx->ODR ^= GPIO_Pin; |
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454 | } |
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455 | |
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456 | /** |
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457 | * @brief Locks GPIO Pins configuration registers. |
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458 | * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, |
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459 | * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH. |
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460 | * @note The configuration of the locked GPIO pins can no longer be modified |
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461 | * until the next reset. |
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462 | * @param GPIOx: where x can be (A..F) to select the GPIO peripheral for STM32F7 family |
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463 | * @param GPIO_Pin: specifies the port bit to be locked. |
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464 | * This parameter can be any combination of GPIO_PIN_x where x can be (0..15). |
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465 | * @retval None |
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466 | */ |
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467 | HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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468 | { |
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469 | __IO uint32_t tmp = GPIO_LCKR_LCKK; |
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470 | |
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471 | /* Check the parameters */ |
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472 | assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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473 | |
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474 | /* Apply lock key write sequence */ |
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475 | tmp |= GPIO_Pin; |
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476 | /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ |
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477 | GPIOx->LCKR = tmp; |
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478 | /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */ |
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479 | GPIOx->LCKR = GPIO_Pin; |
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480 | /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ |
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481 | GPIOx->LCKR = tmp; |
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482 | /* Read LCKK bit*/ |
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483 | tmp = GPIOx->LCKR; |
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484 | |
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485 | if((GPIOx->LCKR & GPIO_LCKR_LCKK) != RESET) |
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486 | { |
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487 | return HAL_OK; |
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488 | } |
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489 | else |
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490 | { |
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491 | return HAL_ERROR; |
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492 | } |
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493 | } |
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494 | |
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495 | /** |
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496 | * @brief This function handles EXTI interrupt request. |
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497 | * @param GPIO_Pin: Specifies the pins connected EXTI line |
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498 | * @retval None |
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499 | */ |
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500 | void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin) |
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501 | { |
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502 | /* EXTI line interrupt detected */ |
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503 | if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET) |
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504 | { |
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505 | __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin); |
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506 | HAL_GPIO_EXTI_Callback(GPIO_Pin); |
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507 | } |
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508 | } |
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509 | |
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510 | /** |
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511 | * @brief EXTI line detection callbacks. |
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512 | * @param GPIO_Pin: Specifies the pins connected EXTI line |
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513 | * @retval None |
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514 | */ |
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515 | __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) |
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516 | { |
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517 | /* NOTE: This function Should not be modified, when the callback is needed, |
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518 | the HAL_GPIO_EXTI_Callback could be implemented in the user file |
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519 | */ |
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520 | } |
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521 | |
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522 | /** |
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523 | * @} |
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524 | */ |
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525 | |
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526 | |
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527 | /** |
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528 | * @} |
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529 | */ |
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530 | |
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531 | #endif /* HAL_GPIO_MODULE_ENABLED */ |
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532 | /** |
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533 | * @} |
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534 | */ |
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535 | |
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536 | /** |
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537 | * @} |
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538 | */ |
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539 | |
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540 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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