2 ******************************************************************************
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3 * @file stm32f7xx_hal_i2c.h
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4 * @author MCD Application Team
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6 * @date 24-March-2015
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7 * @brief Header file of I2C HAL module.
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8 ******************************************************************************
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11 * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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13 * Redistribution and use in source and binary forms, with or without modification,
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14 * are permitted provided that the following conditions are met:
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15 * 1. Redistributions of source code must retain the above copyright notice,
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16 * this list of conditions and the following disclaimer.
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17 * 2. Redistributions in binary form must reproduce the above copyright notice,
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18 * this list of conditions and the following disclaimer in the documentation
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19 * and/or other materials provided with the distribution.
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20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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21 * may be used to endorse or promote products derived from this software
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22 * without specific prior written permission.
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24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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35 ******************************************************************************
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38 /* Define to prevent recursive inclusion -------------------------------------*/
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39 #ifndef __STM32F7xx_HAL_I2C_H
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40 #define __STM32F7xx_HAL_I2C_H
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46 /* Includes ------------------------------------------------------------------*/
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47 #include "stm32f7xx_hal_def.h"
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49 /** @addtogroup STM32F7xx_HAL_Driver
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57 /* Exported types ------------------------------------------------------------*/
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58 /** @defgroup I2C_Exported_Types I2C Exported Types
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62 /** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition
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63 * @brief I2C Configuration Structure definition
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68 uint32_t Timing; /*!< Specifies the I2C_TIMINGR_register value.
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69 This parameter calculated by referring to I2C initialization
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70 section in Reference manual */
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72 uint32_t OwnAddress1; /*!< Specifies the first device own address.
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73 This parameter can be a 7-bit or 10-bit address. */
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75 uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected.
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76 This parameter can be a value of @ref I2C_addressing_mode */
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78 uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected.
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79 This parameter can be a value of @ref I2C_dual_addressing_mode */
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81 uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected
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82 This parameter can be a 7-bit address. */
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84 uint32_t OwnAddress2Masks; /*!< Specifies the acknoledge mask address second device own address if dual addressing mode is selected
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85 This parameter can be a value of @ref I2C_own_address2_masks */
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87 uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected.
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88 This parameter can be a value of @ref I2C_general_call_addressing_mode */
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90 uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected.
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91 This parameter can be a value of @ref I2C_nostretch_mode */
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99 /** @defgroup HAL_state_structure_definition HAL state structure definition
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100 * @brief HAL State structure definition
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106 HAL_I2C_STATE_RESET = 0x00, /*!< I2C not yet initialized or disabled */
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107 HAL_I2C_STATE_READY = 0x01, /*!< I2C initialized and ready for use */
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108 HAL_I2C_STATE_BUSY = 0x02, /*!< I2C internal process is ongoing */
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109 HAL_I2C_STATE_MASTER_BUSY_TX = 0x12, /*!< Master Data Transmission process is ongoing */
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110 HAL_I2C_STATE_MASTER_BUSY_RX = 0x22, /*!< Master Data Reception process is ongoing */
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111 HAL_I2C_STATE_SLAVE_BUSY_TX = 0x32, /*!< Slave Data Transmission process is ongoing */
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112 HAL_I2C_STATE_SLAVE_BUSY_RX = 0x42, /*!< Slave Data Reception process is ongoing */
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113 HAL_I2C_STATE_MEM_BUSY_TX = 0x52, /*!< Memory Data Transmission process is ongoing */
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114 HAL_I2C_STATE_MEM_BUSY_RX = 0x62, /*!< Memory Data Reception process is ongoing */
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115 HAL_I2C_STATE_TIMEOUT = 0x03, /*!< Timeout state */
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116 HAL_I2C_STATE_ERROR = 0x04 /*!< Reception process is ongoing */
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117 }HAL_I2C_StateTypeDef;
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123 /** @defgroup I2C_Error_Code_definition I2C Error Code definition
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124 * @brief I2C Error Code definition
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127 #define HAL_I2C_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */
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128 #define HAL_I2C_ERROR_BERR ((uint32_t)0x00000001) /*!< BERR error */
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129 #define HAL_I2C_ERROR_ARLO ((uint32_t)0x00000002) /*!< ARLO error */
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130 #define HAL_I2C_ERROR_AF ((uint32_t)0x00000004) /*!< ACKF error */
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131 #define HAL_I2C_ERROR_OVR ((uint32_t)0x00000008) /*!< OVR error */
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132 #define HAL_I2C_ERROR_DMA ((uint32_t)0x00000010) /*!< DMA transfer error */
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133 #define HAL_I2C_ERROR_TIMEOUT ((uint32_t)0x00000020) /*!< Timeout error */
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134 #define HAL_I2C_ERROR_SIZE ((uint32_t)0x00000040) /*!< Size Management error */
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139 /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition
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140 * @brief I2C handle Structure definition
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145 I2C_TypeDef *Instance; /*!< I2C registers base address */
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147 I2C_InitTypeDef Init; /*!< I2C communication parameters */
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149 uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */
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151 uint16_t XferSize; /*!< I2C transfer size */
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153 __IO uint16_t XferCount; /*!< I2C transfer counter */
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155 DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */
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157 DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */
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159 HAL_LockTypeDef Lock; /*!< I2C locking object */
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161 __IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */
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163 __IO uint32_t ErrorCode; /*!< I2C Error code */
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165 }I2C_HandleTypeDef;
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173 /* Exported constants --------------------------------------------------------*/
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175 /** @defgroup I2C_Exported_Constants I2C Exported Constants
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179 /** @defgroup I2C_addressing_mode I2C addressing mode
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182 #define I2C_ADDRESSINGMODE_7BIT ((uint32_t)0x00000001)
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183 #define I2C_ADDRESSINGMODE_10BIT ((uint32_t)0x00000002)
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188 /** @defgroup I2C_dual_addressing_mode I2C dual addressing mode
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191 #define I2C_DUALADDRESS_DISABLE ((uint32_t)0x00000000)
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192 #define I2C_DUALADDRESS_ENABLE I2C_OAR2_OA2EN
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197 /** @defgroup I2C_own_address2_masks I2C own address2 masks
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200 #define I2C_OA2_NOMASK ((uint8_t)0x00)
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201 #define I2C_OA2_MASK01 ((uint8_t)0x01)
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202 #define I2C_OA2_MASK02 ((uint8_t)0x02)
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203 #define I2C_OA2_MASK03 ((uint8_t)0x03)
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204 #define I2C_OA2_MASK04 ((uint8_t)0x04)
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205 #define I2C_OA2_MASK05 ((uint8_t)0x05)
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206 #define I2C_OA2_MASK06 ((uint8_t)0x06)
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207 #define I2C_OA2_MASK07 ((uint8_t)0x07)
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212 /** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode
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215 #define I2C_GENERALCALL_DISABLE ((uint32_t)0x00000000)
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216 #define I2C_GENERALCALL_ENABLE I2C_CR1_GCEN
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221 /** @defgroup I2C_nostretch_mode I2C nostretch mode
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224 #define I2C_NOSTRETCH_DISABLE ((uint32_t)0x00000000)
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225 #define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH
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230 /** @defgroup I2C_Memory_Address_Size I2C Memory Address Size
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233 #define I2C_MEMADD_SIZE_8BIT ((uint32_t)0x00000001)
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234 #define I2C_MEMADD_SIZE_16BIT ((uint32_t)0x00000002)
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239 /** @defgroup I2C_ReloadEndMode_definition I2C ReloadEndMode definition
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242 #define I2C_RELOAD_MODE I2C_CR2_RELOAD
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243 #define I2C_AUTOEND_MODE I2C_CR2_AUTOEND
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244 #define I2C_SOFTEND_MODE ((uint32_t)0x00000000)
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249 /** @defgroup I2C_StartStopMode_definition I2C StartStopMode definition
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252 #define I2C_NO_STARTSTOP ((uint32_t)0x00000000)
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253 #define I2C_GENERATE_STOP I2C_CR2_STOP
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254 #define I2C_GENERATE_START_READ (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)
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255 #define I2C_GENERATE_START_WRITE I2C_CR2_START
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260 /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition
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261 * @brief I2C Interrupt definition
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262 * Elements values convention: 0xXXXXXXXX
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263 * - XXXXXXXX : Interrupt control mask
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266 #define I2C_IT_ERRI I2C_CR1_ERRIE
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267 #define I2C_IT_TCI I2C_CR1_TCIE
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268 #define I2C_IT_STOPI I2C_CR1_STOPIE
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269 #define I2C_IT_NACKI I2C_CR1_NACKIE
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270 #define I2C_IT_ADDRI I2C_CR1_ADDRIE
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271 #define I2C_IT_RXI I2C_CR1_RXIE
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272 #define I2C_IT_TXI I2C_CR1_TXIE
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278 /** @defgroup I2C_Flag_definition I2C Flag definition
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281 #define I2C_FLAG_TXE I2C_ISR_TXE
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282 #define I2C_FLAG_TXIS I2C_ISR_TXIS
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283 #define I2C_FLAG_RXNE I2C_ISR_RXNE
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284 #define I2C_FLAG_ADDR I2C_ISR_ADDR
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285 #define I2C_FLAG_AF I2C_ISR_NACKF
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286 #define I2C_FLAG_STOPF I2C_ISR_STOPF
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287 #define I2C_FLAG_TC I2C_ISR_TC
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288 #define I2C_FLAG_TCR I2C_ISR_TCR
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289 #define I2C_FLAG_BERR I2C_ISR_BERR
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290 #define I2C_FLAG_ARLO I2C_ISR_ARLO
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291 #define I2C_FLAG_OVR I2C_ISR_OVR
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292 #define I2C_FLAG_PECERR I2C_ISR_PECERR
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293 #define I2C_FLAG_TIMEOUT I2C_ISR_TIMEOUT
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294 #define I2C_FLAG_ALERT I2C_ISR_ALERT
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295 #define I2C_FLAG_BUSY I2C_ISR_BUSY
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296 #define I2C_FLAG_DIR I2C_ISR_DIR
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305 /* Exported macros -----------------------------------------------------------*/
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307 /** @defgroup I2C_Exported_Macros I2C Exported Macros
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311 /** @brief Reset I2C handle state
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312 * @param __HANDLE__: specifies the I2C Handle.
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315 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
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317 /** @brief Enable the specified I2C interrupts.
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318 * @param __HANDLE__: specifies the I2C Handle.
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319 * @param __INTERRUPT__: specifies the interrupt source to enable.
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320 * This parameter can be one of the following values:
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321 * @arg I2C_IT_ERRI: Errors interrupt enable
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322 * @arg I2C_IT_TCI: Transfer complete interrupt enable
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323 * @arg I2C_IT_STOPI: STOP detection interrupt enable
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324 * @arg I2C_IT_NACKI: NACK received interrupt enable
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325 * @arg I2C_IT_ADDRI: Address match interrupt enable
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326 * @arg I2C_IT_RXI: RX interrupt enable
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327 * @arg I2C_IT_TXI: TX interrupt enable
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332 #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
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334 /** @brief Disable the specified I2C interrupts.
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335 * @param __HANDLE__: specifies the I2C Handle.
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336 * @param __INTERRUPT__: specifies the interrupt source to disable.
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337 * This parameter can be one of the following values:
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338 * @arg I2C_IT_ERRI: Errors interrupt enable
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339 * @arg I2C_IT_TCI: Transfer complete interrupt enable
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340 * @arg I2C_IT_STOPI: STOP detection interrupt enable
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341 * @arg I2C_IT_NACKI: NACK received interrupt enable
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342 * @arg I2C_IT_ADDRI: Address match interrupt enable
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343 * @arg I2C_IT_RXI: RX interrupt enable
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344 * @arg I2C_IT_TXI: TX interrupt enable
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348 #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
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350 /** @brief Checks if the specified I2C interrupt source is enabled or disabled.
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351 * @param __HANDLE__: specifies the I2C Handle.
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352 * @param __INTERRUPT__: specifies the I2C interrupt source to check.
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353 * This parameter can be one of the following values:
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354 * @arg I2C_IT_ERRI: Errors interrupt enable
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355 * @arg I2C_IT_TCI: Transfer complete interrupt enable
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356 * @arg I2C_IT_STOPI: STOP detection interrupt enable
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357 * @arg I2C_IT_NACKI: NACK received interrupt enable
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358 * @arg I2C_IT_ADDRI: Address match interrupt enable
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359 * @arg I2C_IT_RXI: RX interrupt enable
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360 * @arg I2C_IT_TXI: TX interrupt enable
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362 * @retval The new state of __INTERRUPT__ (TRUE or FALSE).
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364 #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR1 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
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366 /** @brief Checks whether the specified I2C flag is set or not.
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367 * @param __HANDLE__: specifies the I2C Handle.
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368 * @param __FLAG__: specifies the flag to check.
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369 * This parameter can be one of the following values:
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370 * @arg I2C_FLAG_TXE: Transmit data register empty
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371 * @arg I2C_FLAG_TXIS: Transmit interrupt status
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372 * @arg I2C_FLAG_RXNE: Receive data register not empty
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373 * @arg I2C_FLAG_ADDR: Address matched (slave mode)
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374 * @arg I2C_FLAG_AF: Acknowledge failure received flag
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375 * @arg I2C_FLAG_STOPF: STOP detection flag
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376 * @arg I2C_FLAG_TC: Transfer complete (master mode)
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377 * @arg I2C_FLAG_TCR: Transfer complete reload
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378 * @arg I2C_FLAG_BERR: Bus error
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379 * @arg I2C_FLAG_ARLO: Arbitration lost
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380 * @arg I2C_FLAG_OVR: Overrun/Underrun
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381 * @arg I2C_FLAG_PECERR: PEC error in reception
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382 * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow detection flag
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383 * @arg I2C_FLAG_ALERT: SMBus alert
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384 * @arg I2C_FLAG_BUSY: Bus busy
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385 * @arg I2C_FLAG_DIR: Transfer direction (slave mode)
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387 * @retval The new state of __FLAG__ (TRUE or FALSE).
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389 #define I2C_FLAG_MASK ((uint32_t)0x0001FFFF)
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390 #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)))
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392 /** @brief Clears the I2C pending flags which are cleared by writing 1 in a specific bit.
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393 * @param __HANDLE__: specifies the I2C Handle.
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394 * @param __FLAG__: specifies the flag to clear.
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395 * This parameter can be any combination of the following values:
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396 * @arg I2C_FLAG_ADDR: Address matched (slave mode)
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397 * @arg I2C_FLAG_AF: Acknowledge failure received flag
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398 * @arg I2C_FLAG_STOPF: STOP detection flag
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399 * @arg I2C_FLAG_BERR: Bus error
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400 * @arg I2C_FLAG_ARLO: Arbitration lost
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401 * @arg I2C_FLAG_OVR: Overrun/Underrun
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402 * @arg I2C_FLAG_PECERR: PEC error in reception
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403 * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow detection flag
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404 * @arg I2C_FLAG_ALERT: SMBus alert
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408 #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->ICR = ((__FLAG__) & I2C_FLAG_MASK))
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410 /** @brief Enable the specified I2C peripheral.
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411 * @param __HANDLE__: specifies the I2C Handle.
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414 #define __HAL_I2C_ENABLE(__HANDLE__) (SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
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416 /** @brief Disable the specified I2C peripheral.
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417 * @param __HANDLE__: specifies the I2C Handle.
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420 #define __HAL_I2C_DISABLE(__HANDLE__) (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
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426 /* Include I2C HAL Extension module */
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427 #include "stm32f7xx_hal_i2c_ex.h"
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429 /* Exported functions --------------------------------------------------------*/
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430 /** @addtogroup I2C_Exported_Functions
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434 /** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions
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437 /* Initialization and de-initialization functions******************************/
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438 HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);
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439 HAL_StatusTypeDef HAL_I2C_DeInit (I2C_HandleTypeDef *hi2c);
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440 void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);
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441 void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);
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446 /** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions
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449 /* IO operation functions ****************************************************/
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450 /******* Blocking mode: Polling */
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451 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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452 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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453 HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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454 HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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455 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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456 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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457 HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout);
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459 /******* Non-Blocking mode: Interrupt */
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460 HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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461 HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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462 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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463 HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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464 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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465 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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467 /******* Non-Blocking mode: DMA */
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468 HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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469 HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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470 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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471 HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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472 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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473 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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478 /** @addtogroup IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
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481 /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */
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482 void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);
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483 void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);
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484 void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);
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485 void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);
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486 void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);
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487 void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);
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488 void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
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489 void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
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490 void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
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495 /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State and Errors functions
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498 /* Peripheral State and Errors functions *************************************/
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499 HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
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500 uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c);
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510 /* Private constants ---------------------------------------------------------*/
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511 /** @defgroup I2C_Private_Constants I2C Private Constants
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519 /* Private macros ------------------------------------------------------------*/
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520 /** @defgroup I2C_Private_Macro I2C Private Macros
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524 #define IS_I2C_ADDRESSING_MODE(MODE) (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \
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525 ((MODE) == I2C_ADDRESSINGMODE_10BIT))
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527 #define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \
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528 ((ADDRESS) == I2C_DUALADDRESS_ENABLE))
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530 #define IS_I2C_OWN_ADDRESS2_MASK(MASK) (((MASK) == I2C_OA2_NOMASK) || \
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531 ((MASK) == I2C_OA2_MASK01) || \
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532 ((MASK) == I2C_OA2_MASK02) || \
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533 ((MASK) == I2C_OA2_MASK03) || \
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534 ((MASK) == I2C_OA2_MASK04) || \
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535 ((MASK) == I2C_OA2_MASK05) || \
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536 ((MASK) == I2C_OA2_MASK06) || \
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537 ((MASK) == I2C_OA2_MASK07))
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539 #define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || \
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540 ((CALL) == I2C_GENERALCALL_ENABLE))
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542 #define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \
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543 ((STRETCH) == I2C_NOSTRETCH_ENABLE))
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545 #define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \
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546 ((SIZE) == I2C_MEMADD_SIZE_16BIT))
\r
549 #define IS_TRANSFER_MODE(MODE) (((MODE) == I2C_RELOAD_MODE) || \
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550 ((MODE) == I2C_AUTOEND_MODE) || \
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551 ((MODE) == I2C_SOFTEND_MODE))
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553 #define IS_TRANSFER_REQUEST(REQUEST) (((REQUEST) == I2C_GENERATE_STOP) || \
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554 ((REQUEST) == I2C_GENERATE_START_READ) || \
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555 ((REQUEST) == I2C_GENERATE_START_WRITE) || \
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556 ((REQUEST) == I2C_NO_STARTSTOP))
\r
559 #define I2C_RESET_CR2(__HANDLE__) ((__HANDLE__)->Instance->CR2 &= (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_HEAD10R | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_RD_WRN)))
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561 #define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= (uint32_t)0x000003FF)
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562 #define IS_I2C_OWN_ADDRESS2(ADDRESS2) ((ADDRESS2) <= (uint16_t)0x00FF)
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564 #define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00))) >> 8)))
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565 #define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FF))))
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567 #define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & (~I2C_CR2_RD_WRN)) : \
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568 (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_ADD10) | (I2C_CR2_START)) & (~I2C_CR2_RD_WRN)))
\r
573 /* Private Functions ---------------------------------------------------------*/
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574 /** @defgroup I2C_Private_Functions I2C Private Functions
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577 /* Private functions are defined in stm32f7xx_hal_i2c.c file */
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595 #endif /* __STM32F7xx_HAL_I2C_H */
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597 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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