1 /** 2 ****************************************************************************** 3 * @file stm32l1xx_hal_i2c.h 4 * @author MCD Application Team 5 * @brief Header file of I2C HAL module. 6 ****************************************************************************** 7 * @attention 8 * 9 * <h2><center>© Copyright (c) 2016 STMicroelectronics. 10 * All rights reserved.</center></h2> 11 * 12 * This software component is licensed by ST under BSD 3-Clause license, 13 * the "License"; You may not use this file except in compliance with the 14 * License. You may obtain a copy of the License at: 15 * opensource.org/licenses/BSD-3-Clause 16 * 17 ****************************************************************************** 18 */ 19 20 /* Define to prevent recursive inclusion -------------------------------------*/ 21 #ifndef __STM32L1xx_HAL_I2C_H 22 #define __STM32L1xx_HAL_I2C_H 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 /* Includes ------------------------------------------------------------------*/ 29 #include "stm32l1xx_hal_def.h" 30 31 /** @addtogroup STM32L1xx_HAL_Driver 32 * @{ 33 */ 34 35 /** @addtogroup I2C 36 * @{ 37 */ 38 39 /* Exported types ------------------------------------------------------------*/ 40 /** @defgroup I2C_Exported_Types I2C Exported Types 41 * @{ 42 */ 43 44 /** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition 45 * @brief I2C Configuration Structure definition 46 * @{ 47 */ 48 typedef struct 49 { 50 uint32_t ClockSpeed; /*!< Specifies the clock frequency. 51 This parameter must be set to a value lower than 400kHz */ 52 53 uint32_t DutyCycle; /*!< Specifies the I2C fast mode duty cycle. 54 This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ 55 56 uint32_t OwnAddress1; /*!< Specifies the first device own address. 57 This parameter can be a 7-bit or 10-bit address. */ 58 59 uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected. 60 This parameter can be a value of @ref I2C_addressing_mode */ 61 62 uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected. 63 This parameter can be a value of @ref I2C_dual_addressing_mode */ 64 65 uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected 66 This parameter can be a 7-bit address. */ 67 68 uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected. 69 This parameter can be a value of @ref I2C_general_call_addressing_mode */ 70 71 uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected. 72 This parameter can be a value of @ref I2C_nostretch_mode */ 73 74 } I2C_InitTypeDef; 75 76 /** 77 * @} 78 */ 79 80 /** @defgroup HAL_state_structure_definition HAL state structure definition 81 * @brief HAL State structure definition 82 * @note HAL I2C State value coding follow below described bitmap : 83 * b7-b6 Error information 84 * 00 : No Error 85 * 01 : Abort (Abort user request on going) 86 * 10 : Timeout 87 * 11 : Error 88 * b5 Peripheral initialization status 89 * 0 : Reset (Peripheral not initialized) 90 * 1 : Init done (Peripheral initialized and ready to use. HAL I2C Init function called) 91 * b4 (not used) 92 * x : Should be set to 0 93 * b3 94 * 0 : Ready or Busy (No Listen mode ongoing) 95 * 1 : Listen (Peripheral in Address Listen Mode) 96 * b2 Intrinsic process state 97 * 0 : Ready 98 * 1 : Busy (Peripheral busy with some configuration or internal operations) 99 * b1 Rx state 100 * 0 : Ready (no Rx operation ongoing) 101 * 1 : Busy (Rx operation ongoing) 102 * b0 Tx state 103 * 0 : Ready (no Tx operation ongoing) 104 * 1 : Busy (Tx operation ongoing) 105 * @{ 106 */ 107 typedef enum 108 { 109 HAL_I2C_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized */ 110 HAL_I2C_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use */ 111 HAL_I2C_STATE_BUSY = 0x24U, /*!< An internal process is ongoing */ 112 HAL_I2C_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing */ 113 HAL_I2C_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing */ 114 HAL_I2C_STATE_LISTEN = 0x28U, /*!< Address Listen Mode is ongoing */ 115 HAL_I2C_STATE_BUSY_TX_LISTEN = 0x29U, /*!< Address Listen Mode and Data Transmission 116 process is ongoing */ 117 HAL_I2C_STATE_BUSY_RX_LISTEN = 0x2AU, /*!< Address Listen Mode and Data Reception 118 process is ongoing */ 119 HAL_I2C_STATE_ABORT = 0x60U, /*!< Abort user request ongoing */ 120 HAL_I2C_STATE_TIMEOUT = 0xA0U, /*!< Timeout state */ 121 HAL_I2C_STATE_ERROR = 0xE0U /*!< Error */ 122 123 } HAL_I2C_StateTypeDef; 124 125 /** 126 * @} 127 */ 128 129 /** @defgroup HAL_mode_structure_definition HAL mode structure definition 130 * @brief HAL Mode structure definition 131 * @note HAL I2C Mode value coding follow below described bitmap :\n 132 * b7 (not used)\n 133 * x : Should be set to 0\n 134 * b6\n 135 * 0 : None\n 136 * 1 : Memory (HAL I2C communication is in Memory Mode)\n 137 * b5\n 138 * 0 : None\n 139 * 1 : Slave (HAL I2C communication is in Slave Mode)\n 140 * b4\n 141 * 0 : None\n 142 * 1 : Master (HAL I2C communication is in Master Mode)\n 143 * b3-b2-b1-b0 (not used)\n 144 * xxxx : Should be set to 0000 145 * @{ 146 */ 147 typedef enum 148 { 149 HAL_I2C_MODE_NONE = 0x00U, /*!< No I2C communication on going */ 150 HAL_I2C_MODE_MASTER = 0x10U, /*!< I2C communication is in Master Mode */ 151 HAL_I2C_MODE_SLAVE = 0x20U, /*!< I2C communication is in Slave Mode */ 152 HAL_I2C_MODE_MEM = 0x40U /*!< I2C communication is in Memory Mode */ 153 154 } HAL_I2C_ModeTypeDef; 155 156 /** 157 * @} 158 */ 159 160 /** @defgroup I2C_Error_Code_definition I2C Error Code definition 161 * @brief I2C Error Code definition 162 * @{ 163 */ 164 #define HAL_I2C_ERROR_NONE 0x00000000U /*!< No error */ 165 #define HAL_I2C_ERROR_BERR 0x00000001U /*!< BERR error */ 166 #define HAL_I2C_ERROR_ARLO 0x00000002U /*!< ARLO error */ 167 #define HAL_I2C_ERROR_AF 0x00000004U /*!< AF error */ 168 #define HAL_I2C_ERROR_OVR 0x00000008U /*!< OVR error */ 169 #define HAL_I2C_ERROR_DMA 0x00000010U /*!< DMA transfer error */ 170 #define HAL_I2C_ERROR_TIMEOUT 0x00000020U /*!< Timeout Error */ 171 #define HAL_I2C_ERROR_SIZE 0x00000040U /*!< Size Management error */ 172 #define HAL_I2C_ERROR_DMA_PARAM 0x00000080U /*!< DMA Parameter Error */ 173 #define HAL_I2C_WRONG_START 0x00000200U /*!< Wrong start Error */ 174 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 175 #define HAL_I2C_ERROR_INVALID_CALLBACK 0x00000100U /*!< Invalid Callback error */ 176 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ 177 /** 178 * @} 179 */ 180 181 /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition 182 * @brief I2C handle Structure definition 183 * @{ 184 */ 185 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 186 typedef struct __I2C_HandleTypeDef 187 #else 188 typedef struct 189 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ 190 { 191 I2C_TypeDef *Instance; /*!< I2C registers base address */ 192 193 I2C_InitTypeDef Init; /*!< I2C communication parameters */ 194 195 uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */ 196 197 uint16_t XferSize; /*!< I2C transfer size */ 198 199 __IO uint16_t XferCount; /*!< I2C transfer counter */ 200 201 __IO uint32_t XferOptions; /*!< I2C transfer options */ 202 203 __IO uint32_t PreviousState; /*!< I2C communication Previous state and mode 204 context for internal usage */ 205 206 DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */ 207 208 DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */ 209 210 HAL_LockTypeDef Lock; /*!< I2C locking object */ 211 212 __IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */ 213 214 __IO HAL_I2C_ModeTypeDef Mode; /*!< I2C communication mode */ 215 216 __IO uint32_t ErrorCode; /*!< I2C Error code */ 217 218 __IO uint32_t Devaddress; /*!< I2C Target device address */ 219 220 __IO uint32_t Memaddress; /*!< I2C Target memory address */ 221 222 __IO uint32_t MemaddSize; /*!< I2C Target memory address size */ 223 224 __IO uint32_t EventCount; /*!< I2C Event counter */ 225 226 227 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 228 void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Master Tx Transfer completed callback */ 229 void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Master Rx Transfer completed callback */ 230 void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Slave Tx Transfer completed callback */ 231 void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Slave Rx Transfer completed callback */ 232 void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Listen Complete callback */ 233 void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Memory Tx Transfer completed callback */ 234 void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Memory Rx Transfer completed callback */ 235 void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Error callback */ 236 void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Abort callback */ 237 238 void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< I2C Slave Address Match callback */ 239 240 void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Msp Init callback */ 241 void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Msp DeInit callback */ 242 243 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ 244 } I2C_HandleTypeDef; 245 246 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 247 /** 248 * @brief HAL I2C Callback ID enumeration definition 249 */ 250 typedef enum 251 { 252 HAL_I2C_MASTER_TX_COMPLETE_CB_ID = 0x00U, /*!< I2C Master Tx Transfer completed callback ID */ 253 HAL_I2C_MASTER_RX_COMPLETE_CB_ID = 0x01U, /*!< I2C Master Rx Transfer completed callback ID */ 254 HAL_I2C_SLAVE_TX_COMPLETE_CB_ID = 0x02U, /*!< I2C Slave Tx Transfer completed callback ID */ 255 HAL_I2C_SLAVE_RX_COMPLETE_CB_ID = 0x03U, /*!< I2C Slave Rx Transfer completed callback ID */ 256 HAL_I2C_LISTEN_COMPLETE_CB_ID = 0x04U, /*!< I2C Listen Complete callback ID */ 257 HAL_I2C_MEM_TX_COMPLETE_CB_ID = 0x05U, /*!< I2C Memory Tx Transfer callback ID */ 258 HAL_I2C_MEM_RX_COMPLETE_CB_ID = 0x06U, /*!< I2C Memory Rx Transfer completed callback ID */ 259 HAL_I2C_ERROR_CB_ID = 0x07U, /*!< I2C Error callback ID */ 260 HAL_I2C_ABORT_CB_ID = 0x08U, /*!< I2C Abort callback ID */ 261 262 HAL_I2C_MSPINIT_CB_ID = 0x09U, /*!< I2C Msp Init callback ID */ 263 HAL_I2C_MSPDEINIT_CB_ID = 0x0AU /*!< I2C Msp DeInit callback ID */ 264 265 } HAL_I2C_CallbackIDTypeDef; 266 267 /** 268 * @brief HAL I2C Callback pointer definition 269 */ 270 typedef void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c); /*!< pointer to an I2C callback function */ 271 typedef void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< pointer to an I2C Address Match callback function */ 272 273 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ 274 /** 275 * @} 276 */ 277 278 /** 279 * @} 280 */ 281 /* Exported constants --------------------------------------------------------*/ 282 283 /** @defgroup I2C_Exported_Constants I2C Exported Constants 284 * @{ 285 */ 286 287 /** @defgroup I2C_duty_cycle_in_fast_mode I2C duty cycle in fast mode 288 * @{ 289 */ 290 #define I2C_DUTYCYCLE_2 0x00000000U 291 #define I2C_DUTYCYCLE_16_9 I2C_CCR_DUTY 292 /** 293 * @} 294 */ 295 296 /** @defgroup I2C_addressing_mode I2C addressing mode 297 * @{ 298 */ 299 #define I2C_ADDRESSINGMODE_7BIT 0x00004000U 300 #define I2C_ADDRESSINGMODE_10BIT (I2C_OAR1_ADDMODE | 0x00004000U) 301 /** 302 * @} 303 */ 304 305 /** @defgroup I2C_dual_addressing_mode I2C dual addressing mode 306 * @{ 307 */ 308 #define I2C_DUALADDRESS_DISABLE 0x00000000U 309 #define I2C_DUALADDRESS_ENABLE I2C_OAR2_ENDUAL 310 /** 311 * @} 312 */ 313 314 /** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode 315 * @{ 316 */ 317 #define I2C_GENERALCALL_DISABLE 0x00000000U 318 #define I2C_GENERALCALL_ENABLE I2C_CR1_ENGC 319 /** 320 * @} 321 */ 322 323 /** @defgroup I2C_nostretch_mode I2C nostretch mode 324 * @{ 325 */ 326 #define I2C_NOSTRETCH_DISABLE 0x00000000U 327 #define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH 328 /** 329 * @} 330 */ 331 332 /** @defgroup I2C_Memory_Address_Size I2C Memory Address Size 333 * @{ 334 */ 335 #define I2C_MEMADD_SIZE_8BIT 0x00000001U 336 #define I2C_MEMADD_SIZE_16BIT 0x00000010U 337 /** 338 * @} 339 */ 340 341 /** @defgroup I2C_XferDirection_definition I2C XferDirection definition 342 * @{ 343 */ 344 #define I2C_DIRECTION_RECEIVE 0x00000000U 345 #define I2C_DIRECTION_TRANSMIT 0x00000001U 346 /** 347 * @} 348 */ 349 350 /** @defgroup I2C_XferOptions_definition I2C XferOptions definition 351 * @{ 352 */ 353 #define I2C_FIRST_FRAME 0x00000001U 354 #define I2C_FIRST_AND_NEXT_FRAME 0x00000002U 355 #define I2C_NEXT_FRAME 0x00000004U 356 #define I2C_FIRST_AND_LAST_FRAME 0x00000008U 357 #define I2C_LAST_FRAME_NO_STOP 0x00000010U 358 #define I2C_LAST_FRAME 0x00000020U 359 360 /* List of XferOptions in usage of : 361 * 1- Restart condition in all use cases (direction change or not) 362 */ 363 #define I2C_OTHER_FRAME (0x00AA0000U) 364 #define I2C_OTHER_AND_LAST_FRAME (0xAA000000U) 365 /** 366 * @} 367 */ 368 369 /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition 370 * @brief I2C Interrupt definition 371 * Elements values convention: 0xXXXXXXXX 372 * - XXXXXXXX : Interrupt control mask 373 * @{ 374 */ 375 #define I2C_IT_BUF I2C_CR2_ITBUFEN 376 #define I2C_IT_EVT I2C_CR2_ITEVTEN 377 #define I2C_IT_ERR I2C_CR2_ITERREN 378 /** 379 * @} 380 */ 381 382 /** @defgroup I2C_Flag_definition I2C Flag definition 383 * @{ 384 */ 385 386 #define I2C_FLAG_OVR 0x00010800U 387 #define I2C_FLAG_AF 0x00010400U 388 #define I2C_FLAG_ARLO 0x00010200U 389 #define I2C_FLAG_BERR 0x00010100U 390 #define I2C_FLAG_TXE 0x00010080U 391 #define I2C_FLAG_RXNE 0x00010040U 392 #define I2C_FLAG_STOPF 0x00010010U 393 #define I2C_FLAG_ADD10 0x00010008U 394 #define I2C_FLAG_BTF 0x00010004U 395 #define I2C_FLAG_ADDR 0x00010002U 396 #define I2C_FLAG_SB 0x00010001U 397 #define I2C_FLAG_DUALF 0x00100080U 398 #define I2C_FLAG_GENCALL 0x00100010U 399 #define I2C_FLAG_TRA 0x00100004U 400 #define I2C_FLAG_BUSY 0x00100002U 401 #define I2C_FLAG_MSL 0x00100001U 402 /** 403 * @} 404 */ 405 406 /** 407 * @} 408 */ 409 410 /* Exported macros -----------------------------------------------------------*/ 411 412 /** @defgroup I2C_Exported_Macros I2C Exported Macros 413 * @{ 414 */ 415 416 /** @brief Reset I2C handle state. 417 * @param __HANDLE__ specifies the I2C Handle. 418 * @retval None 419 */ 420 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 421 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) do{ \ 422 (__HANDLE__)->State = HAL_I2C_STATE_RESET; \ 423 (__HANDLE__)->MspInitCallback = NULL; \ 424 (__HANDLE__)->MspDeInitCallback = NULL; \ 425 } while(0) 426 #else 427 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET) 428 #endif 429 430 /** @brief Enable or disable the specified I2C interrupts. 431 * @param __HANDLE__ specifies the I2C Handle. 432 * @param __INTERRUPT__ specifies the interrupt source to enable or disable. 433 * This parameter can be one of the following values: 434 * @arg I2C_IT_BUF: Buffer interrupt enable 435 * @arg I2C_IT_EVT: Event interrupt enable 436 * @arg I2C_IT_ERR: Error interrupt enable 437 * @retval None 438 */ 439 #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CR2,(__INTERRUPT__)) 440 #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) CLEAR_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__)) 441 442 /** @brief Checks if the specified I2C interrupt source is enabled or disabled. 443 * @param __HANDLE__ specifies the I2C Handle. 444 * @param __INTERRUPT__ specifies the I2C interrupt source to check. 445 * This parameter can be one of the following values: 446 * @arg I2C_IT_BUF: Buffer interrupt enable 447 * @arg I2C_IT_EVT: Event interrupt enable 448 * @arg I2C_IT_ERR: Error interrupt enable 449 * @retval The new state of __INTERRUPT__ (TRUE or FALSE). 450 */ 451 #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) 452 453 /** @brief Checks whether the specified I2C flag is set or not. 454 * @param __HANDLE__ specifies the I2C Handle. 455 * @param __FLAG__ specifies the flag to check. 456 * This parameter can be one of the following values: 457 * @arg I2C_FLAG_OVR: Overrun/Underrun flag 458 * @arg I2C_FLAG_AF: Acknowledge failure flag 459 * @arg I2C_FLAG_ARLO: Arbitration lost flag 460 * @arg I2C_FLAG_BERR: Bus error flag 461 * @arg I2C_FLAG_TXE: Data register empty flag 462 * @arg I2C_FLAG_RXNE: Data register not empty flag 463 * @arg I2C_FLAG_STOPF: Stop detection flag 464 * @arg I2C_FLAG_ADD10: 10-bit header sent flag 465 * @arg I2C_FLAG_BTF: Byte transfer finished flag 466 * @arg I2C_FLAG_ADDR: Address sent flag 467 * Address matched flag 468 * @arg I2C_FLAG_SB: Start bit flag 469 * @arg I2C_FLAG_DUALF: Dual flag 470 * @arg I2C_FLAG_GENCALL: General call header flag 471 * @arg I2C_FLAG_TRA: Transmitter/Receiver flag 472 * @arg I2C_FLAG_BUSY: Bus busy flag 473 * @arg I2C_FLAG_MSL: Master/Slave flag 474 * @retval The new state of __FLAG__ (TRUE or FALSE). 475 */ 476 #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) ((((uint8_t)((__FLAG__) >> 16U)) == 0x01U) ? \ 477 (((((__HANDLE__)->Instance->SR1) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET) : \ 478 (((((__HANDLE__)->Instance->SR2) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)) 479 480 /** @brief Clears the I2C pending flags which are cleared by writing 0 in a specific bit. 481 * @param __HANDLE__ specifies the I2C Handle. 482 * @param __FLAG__ specifies the flag to clear. 483 * This parameter can be any combination of the following values: 484 * @arg I2C_FLAG_OVR: Overrun/Underrun flag (Slave mode) 485 * @arg I2C_FLAG_AF: Acknowledge failure flag 486 * @arg I2C_FLAG_ARLO: Arbitration lost flag (Master mode) 487 * @arg I2C_FLAG_BERR: Bus error flag 488 * @retval None 489 */ 490 #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR1 = ~((__FLAG__) & I2C_FLAG_MASK)) 491 492 /** @brief Clears the I2C ADDR pending flag. 493 * @param __HANDLE__ specifies the I2C Handle. 494 * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. 495 * @retval None 496 */ 497 #define __HAL_I2C_CLEAR_ADDRFLAG(__HANDLE__) \ 498 do{ \ 499 __IO uint32_t tmpreg = 0x00U; \ 500 tmpreg = (__HANDLE__)->Instance->SR1; \ 501 tmpreg = (__HANDLE__)->Instance->SR2; \ 502 UNUSED(tmpreg); \ 503 } while(0) 504 505 /** @brief Clears the I2C STOPF pending flag. 506 * @param __HANDLE__ specifies the I2C Handle. 507 * @retval None 508 */ 509 #define __HAL_I2C_CLEAR_STOPFLAG(__HANDLE__) \ 510 do{ \ 511 __IO uint32_t tmpreg = 0x00U; \ 512 tmpreg = (__HANDLE__)->Instance->SR1; \ 513 SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE); \ 514 UNUSED(tmpreg); \ 515 } while(0) 516 517 /** @brief Enable the specified I2C peripheral. 518 * @param __HANDLE__ specifies the I2C Handle. 519 * @retval None 520 */ 521 #define __HAL_I2C_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE) 522 523 /** @brief Disable the specified I2C peripheral. 524 * @param __HANDLE__ specifies the I2C Handle. 525 * @retval None 526 */ 527 #define __HAL_I2C_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE) 528 529 /** 530 * @} 531 */ 532 533 /* Exported functions --------------------------------------------------------*/ 534 /** @addtogroup I2C_Exported_Functions 535 * @{ 536 */ 537 538 /** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions 539 * @{ 540 */ 541 /* Initialization and de-initialization functions******************************/ 542 HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c); 543 HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c); 544 void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c); 545 void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c); 546 547 /* Callbacks Register/UnRegister functions ***********************************/ 548 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) 549 HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback); 550 HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID); 551 552 HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback); 553 HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c); 554 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ 555 /** 556 * @} 557 */ 558 559 /** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions 560 * @{ 561 */ 562 /* IO operation functions ****************************************************/ 563 /******* Blocking mode: Polling */ 564 HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); 565 HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); 566 HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); 567 HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); 568 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); 569 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); 570 HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout); 571 572 /******* Non-Blocking mode: Interrupt */ 573 HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); 574 HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); 575 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); 576 HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); 577 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); 578 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); 579 580 HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 581 HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 582 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 583 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 584 HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c); 585 HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c); 586 HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress); 587 588 /******* Non-Blocking mode: DMA */ 589 HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); 590 HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); 591 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); 592 HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); 593 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); 594 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); 595 596 HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 597 HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 598 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 599 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); 600 /** 601 * @} 602 */ 603 604 /** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks 605 * @{ 606 */ 607 /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */ 608 void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c); 609 void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c); 610 void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c); 611 void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c); 612 void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c); 613 void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c); 614 void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); 615 void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c); 616 void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c); 617 void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c); 618 void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c); 619 void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c); 620 /** 621 * @} 622 */ 623 624 /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions 625 * @{ 626 */ 627 /* Peripheral State, Mode and Error functions *********************************/ 628 HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c); 629 HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c); 630 uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c); 631 632 /** 633 * @} 634 */ 635 636 /** 637 * @} 638 */ 639 /* Private types -------------------------------------------------------------*/ 640 /* Private variables ---------------------------------------------------------*/ 641 /* Private constants ---------------------------------------------------------*/ 642 /** @defgroup I2C_Private_Constants I2C Private Constants 643 * @{ 644 */ 645 #define I2C_FLAG_MASK 0x0000FFFFU 646 #define I2C_MIN_PCLK_FREQ_STANDARD 2000000U /*!< 2 MHz */ 647 #define I2C_MIN_PCLK_FREQ_FAST 4000000U /*!< 4 MHz */ 648 /** 649 * @} 650 */ 651 652 /* Private macros ------------------------------------------------------------*/ 653 /** @defgroup I2C_Private_Macros I2C Private Macros 654 * @{ 655 */ 656 657 #define I2C_MIN_PCLK_FREQ(__PCLK__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__PCLK__) < I2C_MIN_PCLK_FREQ_STANDARD) : ((__PCLK__) < I2C_MIN_PCLK_FREQ_FAST)) 658 #define I2C_CCR_CALCULATION(__PCLK__, __SPEED__, __COEFF__) (((((__PCLK__) - 1U)/((__SPEED__) * (__COEFF__))) + 1U) & I2C_CCR_CCR) 659 #define I2C_FREQRANGE(__PCLK__) ((__PCLK__)/1000000U) 660 #define I2C_RISE_TIME(__FREQRANGE__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__) * 300U) / 1000U) + 1U)) 661 #define I2C_SPEED_STANDARD(__PCLK__, __SPEED__) ((I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U) < 4U)? 4U:I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U)) 662 #define I2C_SPEED_FAST(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__DUTYCYCLE__) == I2C_DUTYCYCLE_2)? I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 3U) : (I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 25U) | I2C_DUTYCYCLE_16_9)) 663 #define I2C_SPEED(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__SPEED__) <= 100000U)? (I2C_SPEED_STANDARD((__PCLK__), (__SPEED__))) : \ 664 ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__)) & I2C_CCR_CCR) == 0U)? 1U : \ 665 ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__))) | I2C_CCR_FS)) 666 667 #define I2C_7BIT_ADD_WRITE(__ADDRESS__) ((uint8_t)((__ADDRESS__) & (uint8_t)(~I2C_OAR1_ADD0))) 668 #define I2C_7BIT_ADD_READ(__ADDRESS__) ((uint8_t)((__ADDRESS__) | I2C_OAR1_ADD0)) 669 670 #define I2C_10BIT_ADDRESS(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) 671 #define I2C_10BIT_HEADER_WRITE(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)0x00F0))) 672 #define I2C_10BIT_HEADER_READ(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)(0x00F1)))) 673 674 #define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0xFF00)) >> 8))) 675 #define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) 676 677 /** @defgroup I2C_IS_RTC_Definitions I2C Private macros to check input parameters 678 * @{ 679 */ 680 #define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DUTYCYCLE_2) || \ 681 ((CYCLE) == I2C_DUTYCYCLE_16_9)) 682 #define IS_I2C_ADDRESSING_MODE(ADDRESS) (((ADDRESS) == I2C_ADDRESSINGMODE_7BIT) || \ 683 ((ADDRESS) == I2C_ADDRESSINGMODE_10BIT)) 684 #define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \ 685 ((ADDRESS) == I2C_DUALADDRESS_ENABLE)) 686 #define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || \ 687 ((CALL) == I2C_GENERALCALL_ENABLE)) 688 #define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \ 689 ((STRETCH) == I2C_NOSTRETCH_ENABLE)) 690 #define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \ 691 ((SIZE) == I2C_MEMADD_SIZE_16BIT)) 692 #define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) > 0U) && ((SPEED) <= 400000U)) 693 #define IS_I2C_OWN_ADDRESS1(ADDRESS1) (((ADDRESS1) & 0xFFFFFC00U) == 0U) 694 #define IS_I2C_OWN_ADDRESS2(ADDRESS2) (((ADDRESS2) & 0xFFFFFF01U) == 0U) 695 #define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_FIRST_FRAME) || \ 696 ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \ 697 ((REQUEST) == I2C_NEXT_FRAME) || \ 698 ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \ 699 ((REQUEST) == I2C_LAST_FRAME) || \ 700 ((REQUEST) == I2C_LAST_FRAME_NO_STOP) || \ 701 IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST)) 702 703 #define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME) || \ 704 ((REQUEST) == I2C_OTHER_AND_LAST_FRAME)) 705 706 #define I2C_CHECK_FLAG(__ISR__, __FLAG__) ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET) 707 #define I2C_CHECK_IT_SOURCE(__CR1__, __IT__) ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET) 708 /** 709 * @} 710 */ 711 712 /** 713 * @} 714 */ 715 716 /* Private functions ---------------------------------------------------------*/ 717 /** @defgroup I2C_Private_Functions I2C Private Functions 718 * @{ 719 */ 720 721 /** 722 * @} 723 */ 724 725 /** 726 * @} 727 */ 728 729 /** 730 * @} 731 */ 732 733 #ifdef __cplusplus 734 } 735 #endif 736 737 738 #endif /* __STM32L1xx_HAL_I2C_H */ 739 740 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 741
