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annotate Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_i2c.h @ 186:f11f0bf6ef2d cleanup-2
cleanup: remove obsolete code, make static, etc.
Some rather trivial cleanup things like putting demo code into
ifdefs, making functions static where possible, and against my
normal policy of hard removing unused code, commenting it out
at this point in time. Somehow, I think that this commented code
might be useful in the near future as a new pressure sensor is coming.
And finally, fixed some typo's in comment.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
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date | Fri, 15 Mar 2019 12:39:28 +0100 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_hal_i2c.h |
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4 * @author MCD Application Team |
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5 * @brief Header file of I2C HAL module. |
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6 ****************************************************************************** |
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7 * @attention |
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8 * |
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9 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
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10 * |
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11 * Redistribution and use in source and binary forms, with or without modification, |
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12 * are permitted provided that the following conditions are met: |
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13 * 1. Redistributions of source code must retain the above copyright notice, |
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14 * this list of conditions and the following disclaimer. |
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15 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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16 * this list of conditions and the following disclaimer in the documentation |
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17 * and/or other materials provided with the distribution. |
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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19 * may be used to endorse or promote products derived from this software |
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20 * without specific prior written permission. |
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21 * |
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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32 * |
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33 ****************************************************************************** |
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34 */ |
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35 |
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36 /* Define to prevent recursive inclusion -------------------------------------*/ |
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37 #ifndef __STM32F4xx_HAL_I2C_H |
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38 #define __STM32F4xx_HAL_I2C_H |
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39 |
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40 #ifdef __cplusplus |
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41 extern "C" { |
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42 #endif |
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43 |
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44 /* Includes ------------------------------------------------------------------*/ |
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45 #include "stm32f4xx_hal_def.h" |
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46 |
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47 /** @addtogroup STM32F4xx_HAL_Driver |
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48 * @{ |
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49 */ |
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50 |
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51 /** @addtogroup I2C |
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52 * @{ |
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53 */ |
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54 |
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55 /* Exported types ------------------------------------------------------------*/ |
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56 /** @defgroup I2C_Exported_Types I2C Exported Types |
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57 * @{ |
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58 */ |
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59 |
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60 /** |
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61 * @brief I2C Configuration Structure definition |
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62 */ |
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63 typedef struct |
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64 { |
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65 uint32_t ClockSpeed; /*!< Specifies the clock frequency. |
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66 This parameter must be set to a value lower than 400kHz */ |
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67 |
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68 uint32_t DutyCycle; /*!< Specifies the I2C fast mode duty cycle. |
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69 This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ |
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70 |
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71 uint32_t OwnAddress1; /*!< Specifies the first device own address. |
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72 This parameter can be a 7-bit or 10-bit address. */ |
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73 |
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74 uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected. |
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75 This parameter can be a value of @ref I2C_addressing_mode */ |
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76 |
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77 uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected. |
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78 This parameter can be a value of @ref I2C_dual_addressing_mode */ |
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79 |
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80 uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected |
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81 This parameter can be a 7-bit address. */ |
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82 |
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83 uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected. |
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84 This parameter can be a value of @ref I2C_general_call_addressing_mode */ |
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85 |
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86 uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected. |
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87 This parameter can be a value of @ref I2C_nostretch_mode */ |
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88 |
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89 }I2C_InitTypeDef; |
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90 |
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91 /** |
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92 * @brief HAL State structure definition |
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93 * @note HAL I2C State value coding follow below described bitmap : |
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94 * b7-b6 Error information |
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95 * 00 : No Error |
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96 * 01 : Abort (Abort user request on going) |
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97 * 10 : Timeout |
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98 * 11 : Error |
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99 * b5 IP initilisation status |
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100 * 0 : Reset (IP not initialized) |
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101 * 1 : Init done (IP initialized and ready to use. HAL I2C Init function called) |
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102 * b4 (not used) |
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103 * x : Should be set to 0 |
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104 * b3 |
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105 * 0 : Ready or Busy (No Listen mode ongoing) |
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106 * 1 : Listen (IP in Address Listen Mode) |
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107 * b2 Intrinsic process state |
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108 * 0 : Ready |
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109 * 1 : Busy (IP busy with some configuration or internal operations) |
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110 * b1 Rx state |
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111 * 0 : Ready (no Rx operation ongoing) |
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112 * 1 : Busy (Rx operation ongoing) |
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113 * b0 Tx state |
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114 * 0 : Ready (no Tx operation ongoing) |
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115 * 1 : Busy (Tx operation ongoing) |
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116 */ |
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117 typedef enum |
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118 { |
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119 HAL_I2C_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized */ |
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120 HAL_I2C_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use */ |
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121 HAL_I2C_STATE_BUSY = 0x24U, /*!< An internal process is ongoing */ |
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122 HAL_I2C_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing */ |
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123 HAL_I2C_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing */ |
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124 HAL_I2C_STATE_LISTEN = 0x28U, /*!< Address Listen Mode is ongoing */ |
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125 HAL_I2C_STATE_BUSY_TX_LISTEN = 0x29U, /*!< Address Listen Mode and Data Transmission |
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126 process is ongoing */ |
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127 HAL_I2C_STATE_BUSY_RX_LISTEN = 0x2AU, /*!< Address Listen Mode and Data Reception |
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128 process is ongoing */ |
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129 HAL_I2C_STATE_ABORT = 0x60U, /*!< Abort user request ongoing */ |
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130 HAL_I2C_STATE_TIMEOUT = 0xA0U, /*!< Timeout state */ |
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131 HAL_I2C_STATE_ERROR = 0xE0U /*!< Error */ |
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132 |
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133 }HAL_I2C_StateTypeDef; |
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134 |
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135 /** |
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136 * @brief HAL Mode structure definition |
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137 * @note HAL I2C Mode value coding follow below described bitmap : |
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138 * b7 (not used) |
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139 * x : Should be set to 0 |
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140 * b6 |
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141 * 0 : None |
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142 * 1 : Memory (HAL I2C communication is in Memory Mode) |
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143 * b5 |
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144 * 0 : None |
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145 * 1 : Slave (HAL I2C communication is in Slave Mode) |
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146 * b4 |
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147 * 0 : None |
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148 * 1 : Master (HAL I2C communication is in Master Mode) |
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149 * b3-b2-b1-b0 (not used) |
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150 * xxxx : Should be set to 0000 |
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151 */ |
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152 typedef enum |
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153 { |
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154 HAL_I2C_MODE_NONE = 0x00U, /*!< No I2C communication on going */ |
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155 HAL_I2C_MODE_MASTER = 0x10U, /*!< I2C communication is in Master Mode */ |
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156 HAL_I2C_MODE_SLAVE = 0x20U, /*!< I2C communication is in Slave Mode */ |
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157 HAL_I2C_MODE_MEM = 0x40U /*!< I2C communication is in Memory Mode */ |
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158 |
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159 }HAL_I2C_ModeTypeDef; |
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160 |
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161 /** |
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162 * @brief I2C handle Structure definition |
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163 */ |
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164 typedef struct |
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165 { |
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166 I2C_TypeDef *Instance; /*!< I2C registers base address */ |
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167 |
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168 I2C_InitTypeDef Init; /*!< I2C communication parameters */ |
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169 |
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170 uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */ |
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171 |
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172 uint16_t XferSize; /*!< I2C transfer size */ |
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173 |
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174 __IO uint16_t XferCount; /*!< I2C transfer counter */ |
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175 |
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176 __IO uint32_t XferOptions; /*!< I2C transfer options */ |
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177 |
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178 __IO uint32_t PreviousState; /*!< I2C communication Previous state and mode |
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179 context for internal usage */ |
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180 |
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181 DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */ |
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182 |
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183 DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */ |
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184 |
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185 HAL_LockTypeDef Lock; /*!< I2C locking object */ |
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186 |
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187 __IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */ |
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188 |
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189 __IO HAL_I2C_ModeTypeDef Mode; /*!< I2C communication mode */ |
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190 |
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191 __IO uint32_t ErrorCode; /*!< I2C Error code */ |
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192 |
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193 __IO uint32_t Devaddress; /*!< I2C Target device address */ |
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194 |
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195 __IO uint32_t Memaddress; /*!< I2C Target memory address */ |
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196 |
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197 __IO uint32_t MemaddSize; /*!< I2C Target memory address size */ |
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198 |
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199 __IO uint32_t EventCount; /*!< I2C Event counter */ |
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200 |
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201 }I2C_HandleTypeDef; |
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202 |
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203 /** |
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204 * @} |
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205 */ |
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206 |
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207 /* Exported constants --------------------------------------------------------*/ |
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208 /** @defgroup I2C_Exported_Constants I2C Exported Constants |
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209 * @{ |
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210 */ |
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211 |
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212 /** @defgroup I2C_Error_Code I2C Error Code |
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213 * @brief I2C Error Code |
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214 * @{ |
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215 */ |
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216 #define HAL_I2C_ERROR_NONE 0x00000000U /*!< No error */ |
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217 #define HAL_I2C_ERROR_BERR 0x00000001U /*!< BERR error */ |
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218 #define HAL_I2C_ERROR_ARLO 0x00000002U /*!< ARLO error */ |
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219 #define HAL_I2C_ERROR_AF 0x00000004U /*!< AF error */ |
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220 #define HAL_I2C_ERROR_OVR 0x00000008U /*!< OVR error */ |
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221 #define HAL_I2C_ERROR_DMA 0x00000010U /*!< DMA transfer error */ |
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222 #define HAL_I2C_ERROR_TIMEOUT 0x00000020U /*!< Timeout Error */ |
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223 /** |
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224 * @} |
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225 */ |
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226 |
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227 /** @defgroup I2C_duty_cycle_in_fast_mode I2C duty cycle in fast mode |
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228 * @{ |
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229 */ |
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230 #define I2C_DUTYCYCLE_2 0x00000000U |
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231 #define I2C_DUTYCYCLE_16_9 I2C_CCR_DUTY |
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232 /** |
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233 * @} |
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234 */ |
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235 |
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236 /** @defgroup I2C_addressing_mode I2C addressing mode |
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237 * @{ |
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238 */ |
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239 #define I2C_ADDRESSINGMODE_7BIT 0x00004000U |
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240 #define I2C_ADDRESSINGMODE_10BIT (I2C_OAR1_ADDMODE | 0x00004000U) |
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241 /** |
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242 * @} |
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243 */ |
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244 |
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245 /** @defgroup I2C_dual_addressing_mode I2C dual addressing mode |
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246 * @{ |
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247 */ |
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248 #define I2C_DUALADDRESS_DISABLE 0x00000000U |
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249 #define I2C_DUALADDRESS_ENABLE I2C_OAR2_ENDUAL |
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250 /** |
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251 * @} |
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252 */ |
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253 |
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254 /** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode |
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255 * @{ |
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256 */ |
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257 #define I2C_GENERALCALL_DISABLE 0x00000000U |
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258 #define I2C_GENERALCALL_ENABLE I2C_CR1_ENGC |
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259 /** |
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260 * @} |
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261 */ |
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262 |
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263 /** @defgroup I2C_nostretch_mode I2C nostretch mode |
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264 * @{ |
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265 */ |
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266 #define I2C_NOSTRETCH_DISABLE 0x00000000U |
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267 #define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH |
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268 /** |
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269 * @} |
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270 */ |
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271 |
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272 /** @defgroup I2C_Memory_Address_Size I2C Memory Address Size |
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273 * @{ |
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274 */ |
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275 #define I2C_MEMADD_SIZE_8BIT 0x00000001U |
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276 #define I2C_MEMADD_SIZE_16BIT 0x00000010U |
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277 /** |
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278 * @} |
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279 */ |
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280 |
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281 /** @defgroup I2C_XferDirection_definition I2C XferDirection definition |
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282 * @{ |
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283 */ |
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284 #define I2C_DIRECTION_RECEIVE 0x00000000U |
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285 #define I2C_DIRECTION_TRANSMIT 0x00000001U |
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286 /** |
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287 * @} |
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288 */ |
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289 |
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290 /** @defgroup I2C_XferOptions_definition I2C XferOptions definition |
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291 * @{ |
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292 */ |
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293 #define I2C_FIRST_FRAME 0x00000001U |
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294 #define I2C_NEXT_FRAME 0x00000002U |
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295 #define I2C_FIRST_AND_LAST_FRAME 0x00000004U |
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296 #define I2C_LAST_FRAME 0x00000008U |
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297 /** |
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298 * @} |
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299 */ |
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300 |
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301 /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition |
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302 * @{ |
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303 */ |
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304 #define I2C_IT_BUF I2C_CR2_ITBUFEN |
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305 #define I2C_IT_EVT I2C_CR2_ITEVTEN |
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306 #define I2C_IT_ERR I2C_CR2_ITERREN |
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307 /** |
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308 * @} |
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309 */ |
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310 |
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311 /** @defgroup I2C_Flag_definition I2C Flag definition |
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312 * @{ |
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313 */ |
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314 #define I2C_FLAG_SMBALERT 0x00018000U |
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315 #define I2C_FLAG_TIMEOUT 0x00014000U |
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316 #define I2C_FLAG_PECERR 0x00011000U |
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317 #define I2C_FLAG_OVR 0x00010800U |
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318 #define I2C_FLAG_AF 0x00010400U |
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319 #define I2C_FLAG_ARLO 0x00010200U |
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320 #define I2C_FLAG_BERR 0x00010100U |
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321 #define I2C_FLAG_TXE 0x00010080U |
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322 #define I2C_FLAG_RXNE 0x00010040U |
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323 #define I2C_FLAG_STOPF 0x00010010U |
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324 #define I2C_FLAG_ADD10 0x00010008U |
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325 #define I2C_FLAG_BTF 0x00010004U |
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326 #define I2C_FLAG_ADDR 0x00010002U |
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327 #define I2C_FLAG_SB 0x00010001U |
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328 #define I2C_FLAG_DUALF 0x00100080U |
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329 #define I2C_FLAG_SMBHOST 0x00100040U |
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330 #define I2C_FLAG_SMBDEFAULT 0x00100020U |
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331 #define I2C_FLAG_GENCALL 0x00100010U |
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332 #define I2C_FLAG_TRA 0x00100004U |
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333 #define I2C_FLAG_BUSY 0x00100002U |
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334 #define I2C_FLAG_MSL 0x00100001U |
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335 /** |
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336 * @} |
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337 */ |
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338 |
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339 /** |
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340 * @} |
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341 */ |
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342 |
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343 /* Exported macro ------------------------------------------------------------*/ |
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344 /** @defgroup I2C_Exported_Macros I2C Exported Macros |
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345 * @{ |
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346 */ |
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347 |
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348 /** @brief Reset I2C handle state |
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349 * @param __HANDLE__ specifies the I2C Handle. |
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350 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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351 * @retval None |
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352 */ |
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353 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET) |
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354 |
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355 /** @brief Enable or disable the specified I2C interrupts. |
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356 * @param __HANDLE__ specifies the I2C Handle. |
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357 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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358 * @param __INTERRUPT__ specifies the interrupt source to enable or disable. |
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359 * This parameter can be one of the following values: |
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360 * @arg I2C_IT_BUF: Buffer interrupt enable |
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361 * @arg I2C_IT_EVT: Event interrupt enable |
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362 * @arg I2C_IT_ERR: Error interrupt enable |
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363 * @retval None |
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364 */ |
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365 #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 |= (__INTERRUPT__)) |
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366 #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 &= (~(__INTERRUPT__))) |
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367 |
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368 /** @brief Checks if the specified I2C interrupt source is enabled or disabled. |
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369 * @param __HANDLE__ specifies the I2C Handle. |
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370 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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371 * @param __INTERRUPT__ specifies the I2C interrupt source to check. |
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372 * This parameter can be one of the following values: |
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373 * @arg I2C_IT_BUF: Buffer interrupt enable |
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374 * @arg I2C_IT_EVT: Event interrupt enable |
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375 * @arg I2C_IT_ERR: Error interrupt enable |
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376 * @retval The new state of __INTERRUPT__ (TRUE or FALSE). |
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377 */ |
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378 #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) |
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379 |
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380 /** @brief Checks whether the specified I2C flag is set or not. |
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381 * @param __HANDLE__ specifies the I2C Handle. |
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382 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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383 * @param __FLAG__ specifies the flag to check. |
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384 * This parameter can be one of the following values: |
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385 * @arg I2C_FLAG_SMBALERT: SMBus Alert flag |
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386 * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow error flag |
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387 * @arg I2C_FLAG_PECERR: PEC error in reception flag |
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388 * @arg I2C_FLAG_OVR: Overrun/Underrun flag |
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389 * @arg I2C_FLAG_AF: Acknowledge failure flag |
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390 * @arg I2C_FLAG_ARLO: Arbitration lost flag |
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391 * @arg I2C_FLAG_BERR: Bus error flag |
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392 * @arg I2C_FLAG_TXE: Data register empty flag |
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393 * @arg I2C_FLAG_RXNE: Data register not empty flag |
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394 * @arg I2C_FLAG_STOPF: Stop detection flag |
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395 * @arg I2C_FLAG_ADD10: 10-bit header sent flag |
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396 * @arg I2C_FLAG_BTF: Byte transfer finished flag |
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397 * @arg I2C_FLAG_ADDR: Address sent flag |
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398 * Address matched flag |
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399 * @arg I2C_FLAG_SB: Start bit flag |
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400 * @arg I2C_FLAG_DUALF: Dual flag |
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401 * @arg I2C_FLAG_SMBHOST: SMBus host header |
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402 * @arg I2C_FLAG_SMBDEFAULT: SMBus default header |
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403 * @arg I2C_FLAG_GENCALL: General call header flag |
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404 * @arg I2C_FLAG_TRA: Transmitter/Receiver flag |
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405 * @arg I2C_FLAG_BUSY: Bus busy flag |
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406 * @arg I2C_FLAG_MSL: Master/Slave flag |
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407 * @retval The new state of __FLAG__ (TRUE or FALSE). |
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408 */ |
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409 #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) ((((uint8_t)((__FLAG__) >> 16U)) == 0x01U)?((((__HANDLE__)->Instance->SR1) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)): \ |
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410 ((((__HANDLE__)->Instance->SR2) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK))) |
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411 |
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412 /** @brief Clears the I2C pending flags which are cleared by writing 0 in a specific bit. |
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413 * @param __HANDLE__ specifies the I2C Handle. |
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414 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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415 * @param __FLAG__ specifies the flag to clear. |
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416 * This parameter can be any combination of the following values: |
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417 * @arg I2C_FLAG_SMBALERT: SMBus Alert flag |
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418 * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow error flag |
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419 * @arg I2C_FLAG_PECERR: PEC error in reception flag |
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420 * @arg I2C_FLAG_OVR: Overrun/Underrun flag (Slave mode) |
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421 * @arg I2C_FLAG_AF: Acknowledge failure flag |
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422 * @arg I2C_FLAG_ARLO: Arbitration lost flag (Master mode) |
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423 * @arg I2C_FLAG_BERR: Bus error flag |
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424 * @retval None |
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425 */ |
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426 #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR1 = ~((__FLAG__) & I2C_FLAG_MASK)) |
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427 |
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428 /** @brief Clears the I2C ADDR pending flag. |
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429 * @param __HANDLE__ specifies the I2C Handle. |
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430 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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431 * @retval None |
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432 */ |
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433 #define __HAL_I2C_CLEAR_ADDRFLAG(__HANDLE__) \ |
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434 do{ \ |
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435 __IO uint32_t tmpreg = 0x00U; \ |
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436 tmpreg = (__HANDLE__)->Instance->SR1; \ |
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437 tmpreg = (__HANDLE__)->Instance->SR2; \ |
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438 UNUSED(tmpreg); \ |
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439 } while(0) |
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440 |
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441 /** @brief Clears the I2C STOPF pending flag. |
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442 * @param __HANDLE__ specifies the I2C Handle. |
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443 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
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444 * @retval None |
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445 */ |
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446 #define __HAL_I2C_CLEAR_STOPFLAG(__HANDLE__) \ |
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447 do{ \ |
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448 __IO uint32_t tmpreg = 0x00U; \ |
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449 tmpreg = (__HANDLE__)->Instance->SR1; \ |
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450 (__HANDLE__)->Instance->CR1 |= I2C_CR1_PE; \ |
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451 UNUSED(tmpreg); \ |
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452 } while(0) |
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453 |
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454 /** @brief Enable the I2C peripheral. |
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455 * @param __HANDLE__ specifies the I2C Handle. |
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456 * This parameter can be I2Cx where x: 1 or 2 to select the I2C peripheral. |
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457 * @retval None |
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458 */ |
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459 #define __HAL_I2C_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= I2C_CR1_PE) |
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460 |
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461 /** @brief Disable the I2C peripheral. |
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462 * @param __HANDLE__ specifies the I2C Handle. |
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463 * This parameter can be I2Cx where x: 1 or 2 to select the I2C peripheral. |
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464 * @retval None |
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465 */ |
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466 #define __HAL_I2C_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~I2C_CR1_PE) |
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467 |
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468 /** |
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469 * @} |
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470 */ |
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471 |
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472 /* Include I2C HAL Extension module */ |
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473 #include "stm32f4xx_hal_i2c_ex.h" |
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474 |
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475 /* Exported functions --------------------------------------------------------*/ |
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476 /** @addtogroup I2C_Exported_Functions |
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477 * @{ |
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478 */ |
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479 |
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480 /** @addtogroup I2C_Exported_Functions_Group1 |
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481 * @{ |
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482 */ |
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483 /* Initialization/de-initialization functions **********************************/ |
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484 HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c); |
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485 HAL_StatusTypeDef HAL_I2C_DeInit (I2C_HandleTypeDef *hi2c); |
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486 void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c); |
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487 void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c); |
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488 /** |
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489 * @} |
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490 */ |
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491 |
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492 /** @addtogroup I2C_Exported_Functions_Group2 |
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493 * @{ |
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494 */ |
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495 /* I/O operation functions *****************************************************/ |
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496 /******* Blocking mode: Polling */ |
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497 HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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498 HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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499 HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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500 HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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501 HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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502 HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); |
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503 HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout); |
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504 |
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505 /******* Non-Blocking mode: Interrupt */ |
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506 HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); |
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507 HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); |
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508 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); |
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509 HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); |
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510 HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); |
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511 HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); |
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512 |
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513 HAL_StatusTypeDef HAL_I2C_Master_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); |
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514 HAL_StatusTypeDef HAL_I2C_Master_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); |
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515 HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); |
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516 HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); |
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517 HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress); |
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518 HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c); |
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519 HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c); |
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520 |
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521 /******* Non-Blocking mode: DMA */ |
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522 HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); |
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523 HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); |
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524 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); |
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525 HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); |
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526 HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); |
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527 HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); |
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528 |
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529 /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */ |
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530 void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c); |
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531 void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c); |
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532 void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c); |
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533 void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c); |
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534 void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c); |
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535 void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c); |
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536 void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); |
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537 void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c); |
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538 void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c); |
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539 void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c); |
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540 void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c); |
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541 void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c); |
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542 /** |
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543 * @} |
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544 */ |
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545 |
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546 /** @addtogroup I2C_Exported_Functions_Group3 |
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547 * @{ |
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548 */ |
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549 /* Peripheral State, Mode and Errors functions *********************************/ |
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550 HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c); |
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551 HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c); |
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552 uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c); |
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553 |
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554 /** |
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555 * @} |
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556 */ |
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557 |
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558 /** |
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559 * @} |
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560 */ |
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561 /* Private types -------------------------------------------------------------*/ |
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562 /* Private variables ---------------------------------------------------------*/ |
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563 /* Private constants ---------------------------------------------------------*/ |
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564 /** @defgroup I2C_Private_Constants I2C Private Constants |
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565 * @{ |
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566 */ |
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567 #define I2C_FLAG_MASK 0x0000FFFFU |
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568 /** |
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569 * @} |
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570 */ |
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571 |
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572 /* Private macros ------------------------------------------------------------*/ |
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573 /** @defgroup I2C_Private_Macros I2C Private Macros |
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574 * @{ |
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575 */ |
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576 |
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577 #define I2C_FREQRANGE(__PCLK__) ((__PCLK__)/1000000U) |
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578 #define I2C_RISE_TIME(__FREQRANGE__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__) * 300U) / 1000U) + 1U)) |
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579 #define I2C_SPEED_STANDARD(__PCLK__, __SPEED__) (((((__PCLK__)/((__SPEED__) << 1U)) & I2C_CCR_CCR) < 4U)? 4U:((__PCLK__) / ((__SPEED__) << 1U))) |
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580 #define I2C_SPEED_FAST(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__DUTYCYCLE__) == I2C_DUTYCYCLE_2)? ((__PCLK__) / ((__SPEED__) * 3U)) : (((__PCLK__) / ((__SPEED__) * 25U)) | I2C_DUTYCYCLE_16_9)) |
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581 #define I2C_SPEED(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__SPEED__) <= 100000U)? (I2C_SPEED_STANDARD((__PCLK__), (__SPEED__))) : \ |
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582 ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__)) & I2C_CCR_CCR) == 0U)? 1U : \ |
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583 ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__))) | I2C_CCR_FS)) |
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584 |
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585 #define I2C_7BIT_ADD_WRITE(__ADDRESS__) ((uint8_t)((__ADDRESS__) & (~I2C_OAR1_ADD0))) |
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586 #define I2C_7BIT_ADD_READ(__ADDRESS__) ((uint8_t)((__ADDRESS__) | I2C_OAR1_ADD0)) |
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587 |
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588 #define I2C_10BIT_ADDRESS(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) |
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589 #define I2C_10BIT_HEADER_WRITE(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)0x00F0))) |
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590 #define I2C_10BIT_HEADER_READ(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)(0x00F1)))) |
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591 |
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592 #define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0xFF00)) >> 8))) |
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593 #define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) |
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594 |
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595 /** @defgroup I2C_IS_RTC_Definitions I2C Private macros to check input parameters |
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596 * @{ |
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597 */ |
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598 #define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DUTYCYCLE_2) || \ |
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599 ((CYCLE) == I2C_DUTYCYCLE_16_9)) |
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600 #define IS_I2C_ADDRESSING_MODE(ADDRESS) (((ADDRESS) == I2C_ADDRESSINGMODE_7BIT) || \ |
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601 ((ADDRESS) == I2C_ADDRESSINGMODE_10BIT)) |
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602 #define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \ |
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603 ((ADDRESS) == I2C_DUALADDRESS_ENABLE)) |
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604 #define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || \ |
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605 ((CALL) == I2C_GENERALCALL_ENABLE)) |
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606 #define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \ |
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607 ((STRETCH) == I2C_NOSTRETCH_ENABLE)) |
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608 #define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \ |
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609 ((SIZE) == I2C_MEMADD_SIZE_16BIT)) |
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610 #define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) > 0U) && ((SPEED) <= 400000U)) |
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611 #define IS_I2C_OWN_ADDRESS1(ADDRESS1) (((ADDRESS1) & 0xFFFFFC00U) == 0U) |
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612 #define IS_I2C_OWN_ADDRESS2(ADDRESS2) (((ADDRESS2) & 0xFFFFFF01U) == 0U) |
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613 #define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_FIRST_FRAME) || \ |
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614 ((REQUEST) == I2C_NEXT_FRAME) || \ |
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615 ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \ |
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616 ((REQUEST) == I2C_LAST_FRAME)) |
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617 /** |
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618 * @} |
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619 */ |
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620 |
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621 /** |
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622 * @} |
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623 */ |
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624 |
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625 /* Private functions ---------------------------------------------------------*/ |
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626 /** @defgroup I2C_Private_Functions I2C Private Functions |
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627 * @{ |
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628 */ |
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629 |
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630 /** |
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631 * @} |
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632 */ |
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633 |
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634 /** |
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635 * @} |
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636 */ |
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637 |
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638 /** |
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639 * @} |
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640 */ |
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641 |
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642 #ifdef __cplusplus |
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643 } |
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644 #endif |
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645 |
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646 |
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647 #endif /* __STM32F4xx_HAL_I2C_H */ |
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648 |
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649 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |