tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3XX/stm32f30x_i2c.h

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f30x_i2c.h
   4   * @author  MCD Application Team
   5   * @version V1.1.0
   6   * @date    27-February-2014
   7   * @brief   This file contains all the functions prototypes for the I2C firmware
   8   *          library.
   9   ******************************************************************************
  10   * @attention
  11   *
  12   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  13   *
  14   * Redistribution and use in source and binary forms, with or without modification,
  15   * are permitted provided that the following conditions are met:
  16   *   1. Redistributions of source code must retain the above copyright notice,
  17   *      this list of conditions and the following disclaimer.
  18   *   2. Redistributions in binary form must reproduce the above copyright notice,
  19   *      this list of conditions and the following disclaimer in the documentation
  20   *      and/or other materials provided with the distribution.
  21   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  22   *      may be used to endorse or promote products derived from this software
  23   *      without specific prior written permission.
  24   *
  25   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  26   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  28   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  29   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  33   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35   *
  36   ******************************************************************************
  37   */
  38
  39 /* Define to prevent recursive inclusion -------------------------------------*/
  40 #ifndef __STM32F30x_I2C_H
  41 #define __STM32F30x_I2C_H
  42
  43 #ifdef __cplusplus
  44  extern "C" {
  45 #endif
  46
  47 /* Includes ------------------------------------------------------------------*/
  48 #include "stm32f30x.h"
  49
  50 /** @addtogroup STM32F30x_StdPeriph_Driver
  51   * @{
  52   */
  53
  54 /** @addtogroup I2C
  55   * @{
  56   */
  57
  58 /* Exported types ------------------------------------------------------------*/
  59
  60 /**
  61   * @brief  I2C Init structure definition
  62   */
  63
  64 typedef struct
  65 {
  66   uint32_t I2C_Timing;              /*!< Specifies the I2C_TIMINGR_register value.
  67                                          This parameter calculated by referring to I2C initialization
  68                                          section in Reference manual*/
  69
  70   uint32_t I2C_AnalogFilter;        /*!< Enables or disables analog noise filter.
  71                                          This parameter can be a value of @ref I2C_Analog_Filter */
  72
  73   uint32_t I2C_DigitalFilter;       /*!< Configures the digital noise filter.
  74                                          This parameter can be a number between 0x00 and 0x0F */
  75
  76   uint32_t I2C_Mode;                /*!< Specifies the I2C mode.
  77                                          This parameter can be a value of @ref I2C_mode */
  78
  79   uint32_t I2C_OwnAddress1;         /*!< Specifies the device own address 1.
  80                                          This parameter can be a 7-bit or 10-bit address */
  81
  82   uint32_t I2C_Ack;                 /*!< Enables or disables the acknowledgement.
  83                                          This parameter can be a value of @ref I2C_acknowledgement */
  84
  85   uint32_t I2C_AcknowledgedAddress; /*!< Specifies if 7-bit or 10-bit address is acknowledged.
  86                                          This parameter can be a value of @ref I2C_acknowledged_address */
  87 }I2C_InitTypeDef;
  88
  89 /* Exported constants --------------------------------------------------------*/
  90
  91
  92 /** @defgroup I2C_Exported_Constants
  93   * @{
  94   */
  95
  96 #define IS_I2C_ALL_PERIPH(PERIPH)       (((PERIPH) == I2C1) || \
  97                                          ((PERIPH) == I2C2))
  98
  99 /** @defgroup I2C_Analog_Filter
 100   * @{
 101   */
 102
 103 #define I2C_AnalogFilter_Enable         ((uint32_t)0x00000000)
 104 #define I2C_AnalogFilter_Disable        I2C_CR1_ANFOFF
 105
 106 #define IS_I2C_ANALOG_FILTER(FILTER)    (((FILTER) == I2C_AnalogFilter_Enable) || \
 107                                          ((FILTER) == I2C_AnalogFilter_Disable))
 108 /**
 109   * @}
 110   */
 111
 112 /** @defgroup I2C_Digital_Filter
 113   * @{
 114   */
 115
 116 #define IS_I2C_DIGITAL_FILTER(FILTER)   ((FILTER) <= 0x0000000F)
 117 /**
 118   * @}
 119   */
 120
 121 /** @defgroup I2C_mode
 122   * @{
 123   */
 124
 125 #define I2C_Mode_I2C                    ((uint32_t)0x00000000)
 126 #define I2C_Mode_SMBusDevice            I2C_CR1_SMBDEN
 127 #define I2C_Mode_SMBusHost              I2C_CR1_SMBHEN
 128
 129 #define IS_I2C_MODE(MODE)               (((MODE) == I2C_Mode_I2C) || \
 130                                          ((MODE) == I2C_Mode_SMBusDevice) || \
 131                                          ((MODE) == I2C_Mode_SMBusHost))
 132 /**
 133   * @}
 134   */
 135
 136 /** @defgroup I2C_acknowledgement
 137   * @{
 138   */
 139
 140 #define I2C_Ack_Enable                  ((uint32_t)0x00000000)
 141 #define I2C_Ack_Disable                 I2C_CR2_NACK
 142
 143 #define IS_I2C_ACK(ACK)                 (((ACK) == I2C_Ack_Enable) || \
 144                                          ((ACK) == I2C_Ack_Disable))
 145 /**
 146   * @}
 147   */
 148
 149 /** @defgroup I2C_acknowledged_address
 150   * @{
 151   */
 152
 153 #define I2C_AcknowledgedAddress_7bit    ((uint32_t)0x00000000)
 154 #define I2C_AcknowledgedAddress_10bit   I2C_OAR1_OA1MODE
 155
 156 #define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \
 157                                              ((ADDRESS) == I2C_AcknowledgedAddress_10bit))
 158 /**
 159   * @}
 160   */
 161
 162 /** @defgroup I2C_own_address1
 163   * @{
 164   */
 165
 166 #define IS_I2C_OWN_ADDRESS1(ADDRESS1)   ((ADDRESS1) <= (uint32_t)0x000003FF)
 167 /**
 168   * @}
 169   */
 170
 171 /** @defgroup I2C_transfer_direction
 172   * @{
 173   */
 174
 175 #define I2C_Direction_Transmitter       ((uint16_t)0x0000)
 176 #define I2C_Direction_Receiver          ((uint16_t)0x0400)
 177
 178 #define IS_I2C_DIRECTION(DIRECTION)     (((DIRECTION) == I2C_Direction_Transmitter) || \
 179                                          ((DIRECTION) == I2C_Direction_Receiver))
 180 /**
 181   * @}
 182   */
 183
 184 /** @defgroup I2C_DMA_transfer_requests
 185   * @{
 186   */
 187
 188 #define I2C_DMAReq_Tx                   I2C_CR1_TXDMAEN
 189 #define I2C_DMAReq_Rx                   I2C_CR1_RXDMAEN
 190
 191 #define IS_I2C_DMA_REQ(REQ)             ((((REQ) & (uint32_t)0xFFFF3FFF) == 0x00) && ((REQ) != 0x00))
 192 /**
 193   * @}
 194   */
 195
 196 /** @defgroup I2C_slave_address
 197   * @{
 198   */
 199
 200 #define IS_I2C_SLAVE_ADDRESS(ADDRESS)   ((ADDRESS) <= (uint16_t)0x03FF)
 201 /**
 202   * @}
 203   */
 204
 205
 206 /** @defgroup I2C_own_address2
 207   * @{
 208   */
 209
 210 #define IS_I2C_OWN_ADDRESS2(ADDRESS2)   ((ADDRESS2) <= (uint16_t)0x00FF)
 211
 212 /**
 213   * @}
 214   */
 215
 216 /** @defgroup I2C_own_address2_mask
 217   * @{
 218   */
 219
 220 #define I2C_OA2_NoMask                  ((uint8_t)0x00)
 221 #define I2C_OA2_Mask01                  ((uint8_t)0x01)
 222 #define I2C_OA2_Mask02                  ((uint8_t)0x02)
 223 #define I2C_OA2_Mask03                  ((uint8_t)0x03)
 224 #define I2C_OA2_Mask04                  ((uint8_t)0x04)
 225 #define I2C_OA2_Mask05                  ((uint8_t)0x05)
 226 #define I2C_OA2_Mask06                  ((uint8_t)0x06)
 227 #define I2C_OA2_Mask07                  ((uint8_t)0x07)
 228
 229 #define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NoMask) || \
 230                                          ((MASK) == I2C_OA2_Mask01) || \
 231                                          ((MASK) == I2C_OA2_Mask02) || \
 232                                          ((MASK) == I2C_OA2_Mask03) || \
 233                                          ((MASK) == I2C_OA2_Mask04) || \
 234                                          ((MASK) == I2C_OA2_Mask05) || \
 235                                          ((MASK) == I2C_OA2_Mask06) || \
 236                                          ((MASK) == I2C_OA2_Mask07))
 237
 238 /**
 239   * @}
 240   */
 241
 242 /** @defgroup I2C_timeout
 243   * @{
 244   */
 245
 246 #define IS_I2C_TIMEOUT(TIMEOUT)   ((TIMEOUT) <= (uint16_t)0x0FFF)
 247
 248 /**
 249   * @}
 250   */
 251
 252 /** @defgroup I2C_registers
 253   * @{
 254   */
 255
 256 #define I2C_Register_CR1                ((uint8_t)0x00)
 257 #define I2C_Register_CR2                ((uint8_t)0x04)
 258 #define I2C_Register_OAR1               ((uint8_t)0x08)
 259 #define I2C_Register_OAR2               ((uint8_t)0x0C)
 260 #define I2C_Register_TIMINGR            ((uint8_t)0x10)
 261 #define I2C_Register_TIMEOUTR           ((uint8_t)0x14)
 262 #define I2C_Register_ISR                ((uint8_t)0x18)
 263 #define I2C_Register_ICR                ((uint8_t)0x1C)
 264 #define I2C_Register_PECR               ((uint8_t)0x20)
 265 #define I2C_Register_RXDR               ((uint8_t)0x24)
 266 #define I2C_Register_TXDR               ((uint8_t)0x28)
 267
 268 #define IS_I2C_REGISTER(REGISTER)       (((REGISTER) == I2C_Register_CR1) || \
 269                                          ((REGISTER) == I2C_Register_CR2) || \
 270                                          ((REGISTER) == I2C_Register_OAR1) || \
 271                                          ((REGISTER) == I2C_Register_OAR2) || \
 272                                          ((REGISTER) == I2C_Register_TIMINGR) || \
 273                                          ((REGISTER) == I2C_Register_TIMEOUTR) || \
 274                                          ((REGISTER) == I2C_Register_ISR) || \
 275                                          ((REGISTER) == I2C_Register_ICR) || \
 276                                          ((REGISTER) == I2C_Register_PECR) || \
 277                                          ((REGISTER) == I2C_Register_RXDR) || \
 278                                          ((REGISTER) == I2C_Register_TXDR))
 279 /**
 280   * @}
 281   */
 282
 283 /** @defgroup I2C_interrupts_definition
 284   * @{
 285   */
 286
 287 #define I2C_IT_ERRI                     I2C_CR1_ERRIE
 288 #define I2C_IT_TCI                      I2C_CR1_TCIE
 289 #define I2C_IT_STOPI                    I2C_CR1_STOPIE
 290 #define I2C_IT_NACKI                    I2C_CR1_NACKIE
 291 #define I2C_IT_ADDRI                    I2C_CR1_ADDRIE
 292 #define I2C_IT_RXI                      I2C_CR1_RXIE
 293 #define I2C_IT_TXI                      I2C_CR1_TXIE
 294
 295 #define IS_I2C_CONFIG_IT(IT)            ((((IT) & (uint32_t)0xFFFFFF01) == 0x00) && ((IT) != 0x00))
 296
 297 /**
 298   * @}
 299   */
 300
 301 /** @defgroup I2C_flags_definition
 302   * @{
 303   */
 304
 305 #define  I2C_FLAG_TXE                   I2C_ISR_TXE
 306 #define  I2C_FLAG_TXIS                  I2C_ISR_TXIS
 307 #define  I2C_FLAG_RXNE                  I2C_ISR_RXNE
 308 #define  I2C_FLAG_ADDR                  I2C_ISR_ADDR
 309 #define  I2C_FLAG_NACKF                 I2C_ISR_NACKF
 310 #define  I2C_FLAG_STOPF                 I2C_ISR_STOPF
 311 #define  I2C_FLAG_TC                    I2C_ISR_TC
 312 #define  I2C_FLAG_TCR                   I2C_ISR_TCR
 313 #define  I2C_FLAG_BERR                  I2C_ISR_BERR
 314 #define  I2C_FLAG_ARLO                  I2C_ISR_ARLO
 315 #define  I2C_FLAG_OVR                   I2C_ISR_OVR
 316 #define  I2C_FLAG_PECERR                I2C_ISR_PECERR
 317 #define  I2C_FLAG_TIMEOUT               I2C_ISR_TIMEOUT
 318 #define  I2C_FLAG_ALERT                 I2C_ISR_ALERT
 319 #define  I2C_FLAG_BUSY                  I2C_ISR_BUSY
 320
 321 #define IS_I2C_CLEAR_FLAG(FLAG)         ((((FLAG) & (uint32_t)0xFFFF4000) == 0x00) && ((FLAG) != 0x00))
 322
 323 #define IS_I2C_GET_FLAG(FLAG)           (((FLAG) == I2C_FLAG_TXE) || ((FLAG) == I2C_FLAG_TXIS) || \
 324                                          ((FLAG) == I2C_FLAG_RXNE) || ((FLAG) == I2C_FLAG_ADDR) || \
 325                                          ((FLAG) == I2C_FLAG_NACKF) || ((FLAG) == I2C_FLAG_STOPF) || \
 326                                          ((FLAG) == I2C_FLAG_TC) || ((FLAG) == I2C_FLAG_TCR) || \
 327                                          ((FLAG) == I2C_FLAG_BERR) || ((FLAG) == I2C_FLAG_ARLO) || \
 328                                          ((FLAG) == I2C_FLAG_OVR) || ((FLAG) == I2C_FLAG_PECERR) || \
 329                                          ((FLAG) == I2C_FLAG_TIMEOUT) || ((FLAG) == I2C_FLAG_ALERT) || \
 330                                          ((FLAG) == I2C_FLAG_BUSY))
 331
 332 /**
 333   * @}
 334   */
 335
 336
 337 /** @defgroup I2C_interrupts_definition
 338   * @{
 339   */
 340
 341 #define  I2C_IT_TXIS                    I2C_ISR_TXIS
 342 #define  I2C_IT_RXNE                    I2C_ISR_RXNE
 343 #define  I2C_IT_ADDR                    I2C_ISR_ADDR
 344 #define  I2C_IT_NACKF                   I2C_ISR_NACKF
 345 #define  I2C_IT_STOPF                   I2C_ISR_STOPF
 346 #define  I2C_IT_TC                      I2C_ISR_TC
 347 #define  I2C_IT_TCR                     I2C_ISR_TCR
 348 #define  I2C_IT_BERR                    I2C_ISR_BERR
 349 #define  I2C_IT_ARLO                    I2C_ISR_ARLO
 350 #define  I2C_IT_OVR                     I2C_ISR_OVR
 351 #define  I2C_IT_PECERR                  I2C_ISR_PECERR
 352 #define  I2C_IT_TIMEOUT                 I2C_ISR_TIMEOUT
 353 #define  I2C_IT_ALERT                   I2C_ISR_ALERT
 354
 355 #define IS_I2C_CLEAR_IT(IT)             ((((IT) & (uint32_t)0xFFFFC001) == 0x00) && ((IT) != 0x00))
 356
 357 #define IS_I2C_GET_IT(IT)               (((IT) == I2C_IT_TXIS) || ((IT) == I2C_IT_RXNE) || \
 358                                          ((IT) == I2C_IT_ADDR) || ((IT) == I2C_IT_NACKF) || \
 359                                          ((IT) == I2C_IT_STOPF) || ((IT) == I2C_IT_TC) || \
 360                                          ((IT) == I2C_IT_TCR) || ((IT) == I2C_IT_BERR) || \
 361                                          ((IT) == I2C_IT_ARLO) || ((IT) == I2C_IT_OVR) || \
 362                                          ((IT) == I2C_IT_PECERR) || ((IT) == I2C_IT_TIMEOUT) || \
 363                                          ((IT) == I2C_IT_ALERT))
 364
 365
 366 /**
 367   * @}
 368   */
 369
 370 /** @defgroup I2C_ReloadEndMode_definition
 371   * @{
 372   */
 373
 374 #define  I2C_Reload_Mode                I2C_CR2_RELOAD
 375 #define  I2C_AutoEnd_Mode               I2C_CR2_AUTOEND
 376 #define  I2C_SoftEnd_Mode               ((uint32_t)0x00000000)
 377
 378
 379 #define IS_RELOAD_END_MODE(MODE)        (((MODE) == I2C_Reload_Mode) || \
 380                                          ((MODE) == I2C_AutoEnd_Mode) || \
 381                                          ((MODE) == I2C_SoftEnd_Mode))
 382
 383
 384 /**
 385   * @}
 386   */
 387
 388 /** @defgroup I2C_StartStopMode_definition
 389   * @{
 390   */
 391
 392 #define  I2C_No_StartStop                 ((uint32_t)0x00000000)
 393 #define  I2C_Generate_Stop                I2C_CR2_STOP
 394 #define  I2C_Generate_Start_Read          (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)
 395 #define  I2C_Generate_Start_Write         I2C_CR2_START
 396
 397
 398 #define IS_START_STOP_MODE(MODE)        (((MODE) == I2C_Generate_Stop) || \
 399                                          ((MODE) == I2C_Generate_Start_Read) || \
 400                                          ((MODE) == I2C_Generate_Start_Write) || \
 401                                          ((MODE) == I2C_No_StartStop))
 402
 403
 404 /**
 405   * @}
 406   */
 407
 408 /**
 409   * @}
 410   */
 411
 412 /* Exported macro ------------------------------------------------------------*/
 413 /* Exported functions ------------------------------------------------------- */
 414
 415
 416 /* Initialization and Configuration functions *********************************/
 417 void I2C_DeInit(I2C_TypeDef* I2Cx);
 418 void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct);
 419 void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct);
 420 void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 421 void I2C_SoftwareResetCmd(I2C_TypeDef* I2Cx);
 422 void I2C_ITConfig(I2C_TypeDef* I2Cx, uint32_t I2C_IT, FunctionalState NewState);
 423 void I2C_StretchClockCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 424 void I2C_StopModeCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 425 void I2C_DualAddressCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 426 void I2C_OwnAddress2Config(I2C_TypeDef* I2Cx, uint16_t Address, uint8_t Mask);
 427 void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 428 void I2C_SlaveByteControlCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 429 void I2C_SlaveAddressConfig(I2C_TypeDef* I2Cx, uint16_t Address);
 430 void I2C_10BitAddressingModeCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 431
 432 /* Communications handling functions ******************************************/
 433 void I2C_AutoEndCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 434 void I2C_ReloadCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 435 void I2C_NumberOfBytesConfig(I2C_TypeDef* I2Cx, uint8_t Number_Bytes);
 436 void I2C_MasterRequestConfig(I2C_TypeDef* I2Cx, uint16_t I2C_Direction);
 437 void I2C_GenerateSTART(I2C_TypeDef* I2Cx, FunctionalState NewState);
 438 void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState);
 439 void I2C_10BitAddressHeaderCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 440 void I2C_AcknowledgeConfig(I2C_TypeDef* I2Cx, FunctionalState NewState);
 441 uint8_t I2C_GetAddressMatched(I2C_TypeDef* I2Cx);
 442 uint16_t I2C_GetTransferDirection(I2C_TypeDef* I2Cx);
 443 void I2C_TransferHandling(I2C_TypeDef* I2Cx, uint16_t Address, uint8_t Number_Bytes, uint32_t ReloadEndMode, uint32_t StartStopMode);
 444
 445 /*  SMBUS management functions ************************************************/
 446 void I2C_SMBusAlertCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 447 void I2C_ClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 448 void I2C_ExtendedClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 449 void I2C_IdleClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 450 void I2C_TimeoutAConfig(I2C_TypeDef* I2Cx, uint16_t Timeout);
 451 void I2C_TimeoutBConfig(I2C_TypeDef* I2Cx, uint16_t Timeout);
 452 void I2C_CalculatePEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
 453 void I2C_PECRequestCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
 454 uint8_t I2C_GetPEC(I2C_TypeDef* I2Cx);
 455
 456 /* I2C registers management functions *****************************************/
 457 uint32_t I2C_ReadRegister(I2C_TypeDef* I2Cx, uint8_t I2C_Register);
 458
 459 /* Data transfers management functions ****************************************/
 460 void I2C_SendData(I2C_TypeDef* I2Cx, uint8_t Data);
 461 uint8_t I2C_ReceiveData(I2C_TypeDef* I2Cx);
 462
 463 /* DMA transfers management functions *****************************************/
 464 void I2C_DMACmd(I2C_TypeDef* I2Cx, uint32_t I2C_DMAReq, FunctionalState NewState);
 465
 466 /* Interrupts and flags management functions **********************************/
 467 FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
 468 void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
 469 ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT);
 470 void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT);
 471
 472
 473 #ifdef __cplusplus
 474 }
 475 #endif
 476
 477 #endif /*__STM32F30x_I2C_H */
 478
 479 /**
 480   * @}
 481   */
 482
 483 /**
 484   * @}
 485   */
 486
 487 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/