Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c @ 456:5e38b09d2c45 minor_improvments
Transfer a dummy profile in case of missing sample information:
Changed the transmission of the hearers and the profiles to provide a dummy profile which is generated based on information stored in the header file.
author | ideenmodellierer |
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date | Tue, 24 Mar 2020 22:14:16 +0100 |
parents | c78bcbd5deda |
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rev | line source |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_hal_gpio.c |
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4 * @author MCD Application Team |
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5 * @brief GPIO HAL module driver. |
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6 * This file provides firmware functions to manage the following |
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7 * functionalities of the General Purpose Input/Output (GPIO) peripheral: |
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8 * + Initialization and de-initialization functions |
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9 * + IO operation functions |
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10 * |
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11 @verbatim |
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12 ============================================================================== |
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13 ##### GPIO Peripheral features ##### |
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14 ============================================================================== |
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15 [..] |
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16 Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each |
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17 port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software |
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18 in several modes: |
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19 (+) Input mode |
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20 (+) Analog mode |
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21 (+) Output mode |
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22 (+) Alternate function mode |
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23 (+) External interrupt/event lines |
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24 |
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25 [..] |
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26 During and just after reset, the alternate functions and external interrupt |
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27 lines are not active and the I/O ports are configured in input floating mode. |
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28 |
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29 [..] |
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30 All GPIO pins have weak internal pull-up and pull-down resistors, which can be |
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31 activated or not. |
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32 |
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33 [..] |
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34 In Output or Alternate mode, each IO can be configured on open-drain or push-pull |
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35 type and the IO speed can be selected depending on the VDD value. |
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36 |
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37 [..] |
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38 All ports have external interrupt/event capability. To use external interrupt |
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39 lines, the port must be configured in input mode. All available GPIO pins are |
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40 connected to the 16 external interrupt/event lines from EXTI0 to EXTI15. |
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41 |
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42 [..] |
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43 The external interrupt/event controller consists of up to 23 edge detectors |
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44 (16 lines are connected to GPIO) for generating event/interrupt requests (each |
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45 input line can be independently configured to select the type (interrupt or event) |
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46 and the corresponding trigger event (rising or falling or both). Each line can |
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47 also be masked independently. |
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48 |
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49 ##### How to use this driver ##### |
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50 ============================================================================== |
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51 [..] |
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52 (#) Enable the GPIO AHB clock using the following function: __HAL_RCC_GPIOx_CLK_ENABLE(). |
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53 |
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54 (#) Configure the GPIO pin(s) using HAL_GPIO_Init(). |
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55 (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure |
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56 (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef |
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57 structure. |
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58 (++) In case of Output or alternate function mode selection: the speed is |
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59 configured through "Speed" member from GPIO_InitTypeDef structure. |
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60 (++) In alternate mode is selection, the alternate function connected to the IO |
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61 is configured through "Alternate" member from GPIO_InitTypeDef structure. |
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62 (++) Analog mode is required when a pin is to be used as ADC channel |
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63 or DAC output. |
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64 (++) In case of external interrupt/event selection the "Mode" member from |
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65 GPIO_InitTypeDef structure select the type (interrupt or event) and |
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66 the corresponding trigger event (rising or falling or both). |
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67 |
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68 (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority |
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69 mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using |
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70 HAL_NVIC_EnableIRQ(). |
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71 |
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72 (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin(). |
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73 |
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74 (#) To set/reset the level of a pin configured in output mode use |
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75 HAL_GPIO_WritePin()/HAL_GPIO_TogglePin(). |
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76 |
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77 (#) To lock pin configuration until next reset use HAL_GPIO_LockPin(). |
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78 |
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79 |
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80 (#) During and just after reset, the alternate functions are not |
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81 active and the GPIO pins are configured in input floating mode (except JTAG |
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82 pins). |
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83 |
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84 (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose |
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85 (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has |
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86 priority over the GPIO function. |
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87 |
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88 (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as |
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89 general purpose PH0 and PH1, respectively, when the HSE oscillator is off. |
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90 The HSE has priority over the GPIO function. |
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91 |
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92 @endverbatim |
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93 ****************************************************************************** |
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94 * @attention |
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95 * |
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96 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
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97 * |
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98 * Redistribution and use in source and binary forms, with or without modification, |
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99 * are permitted provided that the following conditions are met: |
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100 * 1. Redistributions of source code must retain the above copyright notice, |
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101 * this list of conditions and the following disclaimer. |
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102 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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103 * this list of conditions and the following disclaimer in the documentation |
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104 * and/or other materials provided with the distribution. |
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105 * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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106 * may be used to endorse or promote products derived from this software |
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107 * without specific prior written permission. |
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108 * |
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109 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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110 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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111 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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112 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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113 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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114 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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115 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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116 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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117 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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118 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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119 * |
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120 ****************************************************************************** |
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121 */ |
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122 |
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123 /* Includes ------------------------------------------------------------------*/ |
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124 #include "stm32f4xx_hal.h" |
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125 |
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126 /** @addtogroup STM32F4xx_HAL_Driver |
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127 * @{ |
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128 */ |
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129 |
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130 /** @defgroup GPIO GPIO |
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131 * @brief GPIO HAL module driver |
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132 * @{ |
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133 */ |
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134 |
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135 #ifdef HAL_GPIO_MODULE_ENABLED |
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136 |
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137 /* Private typedef -----------------------------------------------------------*/ |
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138 /* Private define ------------------------------------------------------------*/ |
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139 /** @addtogroup GPIO_Private_Constants GPIO Private Constants |
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140 * @{ |
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141 */ |
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142 #define GPIO_MODE 0x00000003U |
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143 #define EXTI_MODE 0x10000000U |
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144 #define GPIO_MODE_IT 0x00010000U |
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145 #define GPIO_MODE_EVT 0x00020000U |
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146 #define RISING_EDGE 0x00100000U |
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147 #define FALLING_EDGE 0x00200000U |
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148 #define GPIO_OUTPUT_TYPE 0x00000010U |
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149 |
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150 #define GPIO_NUMBER 16U |
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151 /** |
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152 * @} |
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153 */ |
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154 /* Private macro -------------------------------------------------------------*/ |
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155 /* Private variables ---------------------------------------------------------*/ |
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156 /* Private function prototypes -----------------------------------------------*/ |
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157 /* Private functions ---------------------------------------------------------*/ |
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158 /* Exported functions --------------------------------------------------------*/ |
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159 /** @defgroup GPIO_Exported_Functions GPIO Exported Functions |
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160 * @{ |
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161 */ |
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162 |
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163 /** @defgroup GPIO_Exported_Functions_Group1 Initialization and de-initialization functions |
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164 * @brief Initialization and Configuration functions |
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165 * |
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166 @verbatim |
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167 =============================================================================== |
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168 ##### Initialization and de-initialization functions ##### |
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169 =============================================================================== |
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170 [..] |
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171 This section provides functions allowing to initialize and de-initialize the GPIOs |
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172 to be ready for use. |
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173 |
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174 @endverbatim |
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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 * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init. |
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181 * @param GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F429X device or |
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182 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. |
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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; |
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190 uint32_t ioposition = 0x00U; |
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191 uint32_t iocurrent = 0x00U; |
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192 uint32_t temp = 0x00U; |
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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 = 0U; position < GPIO_NUMBER; position++) |
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202 { |
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203 /* Get the IO position */ |
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204 ioposition = 0x01U << 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 /* Configure Alternate function mapped with the current IO */ |
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217 temp = GPIOx->AFR[position >> 3U]; |
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218 temp &= ~(0xFU << ((uint32_t)(position & 0x07U) * 4U)) ; |
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219 temp |= ((uint32_t)(GPIO_Init->Alternate) << (((uint32_t)position & 0x07U) * 4U)); |
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220 GPIOx->AFR[position >> 3U] = temp; |
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221 } |
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222 |
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223 /* Configure IO Direction mode (Input, Output, Alternate or Analog) */ |
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224 temp = GPIOx->MODER; |
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225 temp &= ~(GPIO_MODER_MODER0 << (position * 2U)); |
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226 temp |= ((GPIO_Init->Mode & GPIO_MODE) << (position * 2U)); |
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227 GPIOx->MODER = temp; |
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228 |
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229 /* In case of Output or Alternate function mode selection */ |
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230 if((GPIO_Init->Mode == GPIO_MODE_OUTPUT_PP) || (GPIO_Init->Mode == GPIO_MODE_AF_PP) || |
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231 (GPIO_Init->Mode == GPIO_MODE_OUTPUT_OD) || (GPIO_Init->Mode == GPIO_MODE_AF_OD)) |
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232 { |
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233 /* Check the Speed parameter */ |
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234 assert_param(IS_GPIO_SPEED(GPIO_Init->Speed)); |
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235 /* Configure the IO Speed */ |
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236 temp = GPIOx->OSPEEDR; |
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237 temp &= ~(GPIO_OSPEEDER_OSPEEDR0 << (position * 2U)); |
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238 temp |= (GPIO_Init->Speed << (position * 2U)); |
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239 GPIOx->OSPEEDR = temp; |
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240 |
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241 /* Configure the IO Output Type */ |
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242 temp = GPIOx->OTYPER; |
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243 temp &= ~(GPIO_OTYPER_OT_0 << position) ; |
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244 temp |= (((GPIO_Init->Mode & GPIO_OUTPUT_TYPE) >> 4U) << position); |
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245 GPIOx->OTYPER = temp; |
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246 } |
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247 |
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248 /* Activate the Pull-up or Pull down resistor for the current IO */ |
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249 temp = GPIOx->PUPDR; |
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250 temp &= ~(GPIO_PUPDR_PUPDR0 << (position * 2U)); |
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251 temp |= ((GPIO_Init->Pull) << (position * 2U)); |
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252 GPIOx->PUPDR = temp; |
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253 |
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254 /*--------------------- EXTI Mode Configuration ------------------------*/ |
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255 /* Configure the External Interrupt or event for the current IO */ |
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256 if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE) |
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257 { |
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258 /* Enable SYSCFG Clock */ |
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259 __HAL_RCC_SYSCFG_CLK_ENABLE(); |
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260 |
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261 temp = SYSCFG->EXTICR[position >> 2U]; |
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262 temp &= ~(0x0FU << (4U * (position & 0x03U))); |
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263 temp |= ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4U * (position & 0x03U))); |
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264 SYSCFG->EXTICR[position >> 2U] = temp; |
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265 |
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266 /* Clear EXTI line configuration */ |
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267 temp = EXTI->IMR; |
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268 temp &= ~((uint32_t)iocurrent); |
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269 if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT) |
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270 { |
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271 temp |= iocurrent; |
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272 } |
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273 EXTI->IMR = temp; |
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274 |
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275 temp = EXTI->EMR; |
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276 temp &= ~((uint32_t)iocurrent); |
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277 if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT) |
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278 { |
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279 temp |= iocurrent; |
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280 } |
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281 EXTI->EMR = temp; |
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282 |
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283 /* Clear Rising Falling edge configuration */ |
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284 temp = EXTI->RTSR; |
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285 temp &= ~((uint32_t)iocurrent); |
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286 if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE) |
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287 { |
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288 temp |= iocurrent; |
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289 } |
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290 EXTI->RTSR = temp; |
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291 |
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292 temp = EXTI->FTSR; |
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293 temp &= ~((uint32_t)iocurrent); |
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294 if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE) |
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295 { |
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296 temp |= iocurrent; |
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297 } |
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298 EXTI->FTSR = temp; |
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299 } |
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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 * @brief De-initializes the GPIOx peripheral registers to their default reset values. |
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306 * @param GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F429X device or |
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307 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. |
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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 = 0x00U; |
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316 uint32_t iocurrent = 0x00U; |
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317 uint32_t tmp = 0x00U; |
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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 = 0U; position < GPIO_NUMBER; position++) |
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324 { |
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325 /* Get the IO position */ |
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326 ioposition = 0x01U << 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 * 2U)); |
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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 >> 3U] &= ~(0xFU << ((uint32_t)(position & 0x07U) * 4U)) ; |
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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 * 2U)); |
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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 * 2U)); |
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347 |
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348 /*------------------------- EXTI Mode Configuration --------------------*/ |
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349 tmp = SYSCFG->EXTICR[position >> 2U]; |
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350 tmp &= (0x0FU << (4U * (position & 0x03U))); |
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351 if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4U * (position & 0x03U)))) |
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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 = 0x0FU << (4U * (position & 0x03U)); |
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355 SYSCFG->EXTICR[position >> 2U] &= ~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 for STM32F429X device or |
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388 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. |
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389 * @param GPIO_Pin specifies the port bit to read. |
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390 * This parameter can be GPIO_PIN_x where x can be (0..15). |
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391 * @retval The input port pin value. |
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392 */ |
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393 GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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394 { |
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395 GPIO_PinState bitstatus; |
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396 |
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397 /* Check the parameters */ |
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398 assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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399 |
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400 if((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET) |
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401 { |
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402 bitstatus = GPIO_PIN_SET; |
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403 } |
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404 else |
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405 { |
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406 bitstatus = GPIO_PIN_RESET; |
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407 } |
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408 return bitstatus; |
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409 } |
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410 |
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411 /** |
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412 * @brief Sets or clears the selected data port bit. |
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413 * |
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414 * @note This function uses GPIOx_BSRR register to allow atomic read/modify |
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415 * accesses. In this way, there is no risk of an IRQ occurring between |
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416 * the read and the modify access. |
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417 * |
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418 * @param GPIOx where x can be (A..K) to select the GPIO peripheral for STM32F429X device or |
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419 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. |
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420 * @param GPIO_Pin specifies the port bit to be written. |
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421 * This parameter can be one of GPIO_PIN_x where x can be (0..15). |
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422 * @param PinState specifies the value to be written to the selected bit. |
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423 * This parameter can be one of the GPIO_PinState enum values: |
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424 * @arg GPIO_PIN_RESET: to clear the port pin |
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425 * @arg GPIO_PIN_SET: to set the port pin |
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426 * @retval None |
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427 */ |
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428 void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState) |
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429 { |
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430 /* Check the parameters */ |
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431 assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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432 assert_param(IS_GPIO_PIN_ACTION(PinState)); |
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433 |
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434 if(PinState != GPIO_PIN_RESET) |
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435 { |
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436 GPIOx->BSRR = GPIO_Pin; |
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437 } |
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438 else |
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439 { |
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440 GPIOx->BSRR = (uint32_t)GPIO_Pin << 16U; |
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441 } |
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442 } |
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443 |
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444 /** |
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445 * @brief Toggles the specified GPIO pins. |
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446 * @param GPIOx Where x can be (A..K) to select the GPIO peripheral for STM32F429X device or |
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447 * x can be (A..I) to select the GPIO peripheral for STM32F40XX and STM32F427X devices. |
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448 * @param GPIO_Pin Specifies the pins to be toggled. |
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449 * @retval None |
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450 */ |
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451 void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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452 { |
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453 /* Check the parameters */ |
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454 assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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455 |
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456 GPIOx->ODR ^= GPIO_Pin; |
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457 } |
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458 |
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459 /** |
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460 * @brief Locks GPIO Pins configuration registers. |
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461 * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, |
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462 * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH. |
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463 * @note The configuration of the locked GPIO pins can no longer be modified |
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464 * until the next reset. |
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465 * @param GPIOx where x can be (A..F) to select the GPIO peripheral for STM32F4 family |
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466 * @param GPIO_Pin specifies the port bit to be locked. |
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467 * This parameter can be any combination of GPIO_PIN_x where x can be (0..15). |
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468 * @retval None |
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469 */ |
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470 HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) |
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471 { |
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472 __IO uint32_t tmp = GPIO_LCKR_LCKK; |
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473 |
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474 /* Check the parameters */ |
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475 assert_param(IS_GPIO_PIN(GPIO_Pin)); |
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476 |
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477 /* Apply lock key write sequence */ |
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478 tmp |= GPIO_Pin; |
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479 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ |
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480 GPIOx->LCKR = tmp; |
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481 /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */ |
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482 GPIOx->LCKR = GPIO_Pin; |
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483 /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */ |
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484 GPIOx->LCKR = tmp; |
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485 /* Read LCKK bit*/ |
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486 tmp = GPIOx->LCKR; |
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487 |
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488 if((GPIOx->LCKR & GPIO_LCKR_LCKK) != RESET) |
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489 { |
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490 return HAL_OK; |
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491 } |
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492 else |
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493 { |
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494 return HAL_ERROR; |
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495 } |
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496 } |
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497 |
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498 /** |
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499 * @brief This function handles EXTI interrupt request. |
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500 * @param GPIO_Pin Specifies the pins connected EXTI line |
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501 * @retval None |
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502 */ |
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503 void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin) |
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504 { |
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505 /* EXTI line interrupt detected */ |
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506 if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET) |
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507 { |
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508 __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin); |
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509 HAL_GPIO_EXTI_Callback(GPIO_Pin); |
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510 } |
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511 } |
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512 |
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513 /** |
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514 * @brief EXTI line detection callbacks. |
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515 * @param GPIO_Pin Specifies the pins connected EXTI line |
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516 * @retval None |
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517 */ |
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518 __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) |
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519 { |
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520 /* Prevent unused argument(s) compilation warning */ |
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521 UNUSED(GPIO_Pin); |
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522 /* NOTE: This function Should not be modified, when the callback is needed, |
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523 the HAL_GPIO_EXTI_Callback could be implemented in the user file |
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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 |
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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 #endif /* HAL_GPIO_MODULE_ENABLED */ |
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537 /** |
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538 * @} |
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539 */ |
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540 |
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541 /** |
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542 * @} |
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543 */ |
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544 |
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545 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |