30 #ifndef __STM32F30x_I2C_H    31 #define __STM32F30x_I2C_H    38 #include "stm32f30x.h"    86 #define IS_I2C_ALL_PERIPH(PERIPH)       (((PERIPH) == I2C1) || \    93 #define I2C_AnalogFilter_Enable         ((uint32_t)0x00000000)    94 #define I2C_AnalogFilter_Disable        I2C_CR1_ANFOFF    96 #define IS_I2C_ANALOG_FILTER(FILTER)    (((FILTER) == I2C_AnalogFilter_Enable) || \    97                                          ((FILTER) == I2C_AnalogFilter_Disable))   106 #define IS_I2C_DIGITAL_FILTER(FILTER)   ((FILTER) <= 0x0000000F)   115 #define I2C_Mode_I2C                    ((uint32_t)0x00000000)   116 #define I2C_Mode_SMBusDevice            I2C_CR1_SMBDEN   117 #define I2C_Mode_SMBusHost              I2C_CR1_SMBHEN   119 #define IS_I2C_MODE(MODE)               (((MODE) == I2C_Mode_I2C) || \   120                                          ((MODE) == I2C_Mode_SMBusDevice) || \   121                                          ((MODE) == I2C_Mode_SMBusHost))   130 #define I2C_Ack_Enable                  ((uint32_t)0x00000000)   131 #define I2C_Ack_Disable                 I2C_CR2_NACK   133 #define IS_I2C_ACK(ACK)                 (((ACK) == I2C_Ack_Enable) || \   134                                          ((ACK) == I2C_Ack_Disable))   143 #define I2C_AcknowledgedAddress_7bit    ((uint32_t)0x00000000)   144 #define I2C_AcknowledgedAddress_10bit   I2C_OAR1_OA1MODE   146 #define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \   147                                              ((ADDRESS) == I2C_AcknowledgedAddress_10bit))   156 #define IS_I2C_OWN_ADDRESS1(ADDRESS1)   ((ADDRESS1) <= (uint32_t)0x000003FF)   165 #define I2C_Direction_Transmitter       ((uint16_t)0x0000)   166 #define I2C_Direction_Receiver          ((uint16_t)0x0400)   168 #define IS_I2C_DIRECTION(DIRECTION)     (((DIRECTION) == I2C_Direction_Transmitter) || \   169                                          ((DIRECTION) == I2C_Direction_Receiver))   178 #define I2C_DMAReq_Tx                   I2C_CR1_TXDMAEN   179 #define I2C_DMAReq_Rx                   I2C_CR1_RXDMAEN   181 #define IS_I2C_DMA_REQ(REQ)             ((((REQ) & (uint32_t)0xFFFF3FFF) == 0x00) && ((REQ) != 0x00))   190 #define IS_I2C_SLAVE_ADDRESS(ADDRESS)   ((ADDRESS) <= (uint16_t)0x03FF)   200 #define IS_I2C_OWN_ADDRESS2(ADDRESS2)   ((ADDRESS2) <= (uint16_t)0x00FF)   210 #define I2C_OA2_NoMask                  ((uint8_t)0x00)   211 #define I2C_OA2_Mask01                  ((uint8_t)0x01)   212 #define I2C_OA2_Mask02                  ((uint8_t)0x02)   213 #define I2C_OA2_Mask03                  ((uint8_t)0x03)   214 #define I2C_OA2_Mask04                  ((uint8_t)0x04)   215 #define I2C_OA2_Mask05                  ((uint8_t)0x05)   216 #define I2C_OA2_Mask06                  ((uint8_t)0x06)   217 #define I2C_OA2_Mask07                  ((uint8_t)0x07)   219 #define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NoMask) || \   220                                          ((MASK) == I2C_OA2_Mask01) || \   221                                          ((MASK) == I2C_OA2_Mask02) || \   222                                          ((MASK) == I2C_OA2_Mask03) || \   223                                          ((MASK) == I2C_OA2_Mask04) || \   224                                          ((MASK) == I2C_OA2_Mask05) || \   225                                          ((MASK) == I2C_OA2_Mask06) || \   226                                          ((MASK) == I2C_OA2_Mask07))     236 #define IS_I2C_TIMEOUT(TIMEOUT)   ((TIMEOUT) <= (uint16_t)0x0FFF)   246 #define I2C_Register_CR1                ((uint8_t)0x00)   247 #define I2C_Register_CR2                ((uint8_t)0x04)   248 #define I2C_Register_OAR1               ((uint8_t)0x08)   249 #define I2C_Register_OAR2               ((uint8_t)0x0C)   250 #define I2C_Register_TIMINGR            ((uint8_t)0x10)   251 #define I2C_Register_TIMEOUTR           ((uint8_t)0x14)   252 #define I2C_Register_ISR                ((uint8_t)0x18)   253 #define I2C_Register_ICR                ((uint8_t)0x1C)   254 #define I2C_Register_PECR               ((uint8_t)0x20)   255 #define I2C_Register_RXDR               ((uint8_t)0x24)   256 #define I2C_Register_TXDR               ((uint8_t)0x28)   258 #define IS_I2C_REGISTER(REGISTER)       (((REGISTER) == I2C_Register_CR1) || \   259                                          ((REGISTER) == I2C_Register_CR2) || \   260                                          ((REGISTER) == I2C_Register_OAR1) || \   261                                          ((REGISTER) == I2C_Register_OAR2) || \   262                                          ((REGISTER) == I2C_Register_TIMINGR) || \   263                                          ((REGISTER) == I2C_Register_TIMEOUTR) || \   264                                          ((REGISTER) == I2C_Register_ISR) || \   265                                          ((REGISTER) == I2C_Register_ICR) || \   266                                          ((REGISTER) == I2C_Register_PECR) || \   267                                          ((REGISTER) == I2C_Register_RXDR) || \   268                                          ((REGISTER) == I2C_Register_TXDR))   277 #define I2C_IT_ERRI                     I2C_CR1_ERRIE   278 #define I2C_IT_TCI                      I2C_CR1_TCIE   279 #define I2C_IT_STOPI                    I2C_CR1_STOPIE   280 #define I2C_IT_NACKI                    I2C_CR1_NACKIE   281 #define I2C_IT_ADDRI                    I2C_CR1_ADDRIE   282 #define I2C_IT_RXI                      I2C_CR1_RXIE   283 #define I2C_IT_TXI                      I2C_CR1_TXIE   285 #define IS_I2C_CONFIG_IT(IT)            ((((IT) & (uint32_t)0xFFFFFF01) == 0x00) && ((IT) != 0x00))   295 #define  I2C_FLAG_TXE                   I2C_ISR_TXE   296 #define  I2C_FLAG_TXIS                  I2C_ISR_TXIS   297 #define  I2C_FLAG_RXNE                  I2C_ISR_RXNE   298 #define  I2C_FLAG_ADDR                  I2C_ISR_ADDR   299 #define  I2C_FLAG_NACKF                 I2C_ISR_NACKF   300 #define  I2C_FLAG_STOPF                 I2C_ISR_STOPF   301 #define  I2C_FLAG_TC                    I2C_ISR_TC   302 #define  I2C_FLAG_TCR                   I2C_ISR_TCR   303 #define  I2C_FLAG_BERR                  I2C_ISR_BERR   304 #define  I2C_FLAG_ARLO                  I2C_ISR_ARLO   305 #define  I2C_FLAG_OVR                   I2C_ISR_OVR   306 #define  I2C_FLAG_PECERR                I2C_ISR_PECERR   307 #define  I2C_FLAG_TIMEOUT               I2C_ISR_TIMEOUT   308 #define  I2C_FLAG_ALERT                 I2C_ISR_ALERT   309 #define  I2C_FLAG_BUSY                  I2C_ISR_BUSY   311 #define IS_I2C_CLEAR_FLAG(FLAG)         ((((FLAG) & (uint32_t)0xFFFF4000) == 0x00) && ((FLAG) != 0x00))   313 #define IS_I2C_GET_FLAG(FLAG)           (((FLAG) == I2C_FLAG_TXE) || ((FLAG) == I2C_FLAG_TXIS) || \   314                                          ((FLAG) == I2C_FLAG_RXNE) || ((FLAG) == I2C_FLAG_ADDR) || \   315                                          ((FLAG) == I2C_FLAG_NACKF) || ((FLAG) == I2C_FLAG_STOPF) || \   316                                          ((FLAG) == I2C_FLAG_TC) || ((FLAG) == I2C_FLAG_TCR) || \   317                                          ((FLAG) == I2C_FLAG_BERR) || ((FLAG) == I2C_FLAG_ARLO) || \   318                                          ((FLAG) == I2C_FLAG_OVR) || ((FLAG) == I2C_FLAG_PECERR) || \   319                                          ((FLAG) == I2C_FLAG_TIMEOUT) || ((FLAG) == I2C_FLAG_ALERT) || \   320                                          ((FLAG) == I2C_FLAG_BUSY))   331 #define  I2C_IT_TXIS                    I2C_ISR_TXIS   332 #define  I2C_IT_RXNE                    I2C_ISR_RXNE   333 #define  I2C_IT_ADDR                    I2C_ISR_ADDR   334 #define  I2C_IT_NACKF                   I2C_ISR_NACKF   335 #define  I2C_IT_STOPF                   I2C_ISR_STOPF   336 #define  I2C_IT_TC                      I2C_ISR_TC   337 #define  I2C_IT_TCR                     I2C_ISR_TCR   338 #define  I2C_IT_BERR                    I2C_ISR_BERR   339 #define  I2C_IT_ARLO                    I2C_ISR_ARLO   340 #define  I2C_IT_OVR                     I2C_ISR_OVR   341 #define  I2C_IT_PECERR                  I2C_ISR_PECERR   342 #define  I2C_IT_TIMEOUT                 I2C_ISR_TIMEOUT   343 #define  I2C_IT_ALERT                   I2C_ISR_ALERT   345 #define IS_I2C_CLEAR_IT(IT)             ((((IT) & (uint32_t)0xFFFFC001) == 0x00) && ((IT) != 0x00))   347 #define IS_I2C_GET_IT(IT)               (((IT) == I2C_IT_TXIS) || ((IT) == I2C_IT_RXNE) || \   348                                          ((IT) == I2C_IT_ADDR) || ((IT) == I2C_IT_NACKF) || \   349                                          ((IT) == I2C_IT_STOPF) || ((IT) == I2C_IT_TC) || \   350                                          ((IT) == I2C_IT_TCR) || ((IT) == I2C_IT_BERR) || \   351                                          ((IT) == I2C_IT_ARLO) || ((IT) == I2C_IT_OVR) || \   352                                          ((IT) == I2C_IT_PECERR) || ((IT) == I2C_IT_TIMEOUT) || \   353                                          ((IT) == I2C_IT_ALERT))   364 #define  I2C_Reload_Mode                I2C_CR2_RELOAD   365 #define  I2C_AutoEnd_Mode               I2C_CR2_AUTOEND   366 #define  I2C_SoftEnd_Mode               ((uint32_t)0x00000000)   369 #define IS_RELOAD_END_MODE(MODE)        (((MODE) == I2C_Reload_Mode) || \   370                                          ((MODE) == I2C_AutoEnd_Mode) || \   371                                          ((MODE) == I2C_SoftEnd_Mode))   382 #define  I2C_No_StartStop                 ((uint32_t)0x00000000)   383 #define  I2C_Generate_Stop                I2C_CR2_STOP   384 #define  I2C_Generate_Start_Read          (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)   385 #define  I2C_Generate_Start_Write         I2C_CR2_START   388 #define IS_START_STOP_MODE(MODE)        (((MODE) == I2C_Generate_Stop) || \   389                                          ((MODE) == I2C_Generate_Start_Read) || \   390                                          ((MODE) == I2C_Generate_Start_Write) || \   391                                          ((MODE) == I2C_No_StartStop)) void I2C_TimeoutAConfig(I2C_TypeDef *I2Cx, uint16_t Timeout)
Configures the I2C Bus Timeout A (SCL Timeout when TIDLE = 0 or Bus idle SCL and SDA high when TIDLE ...
void I2C_ExtendedClockTimeoutCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C Extended Clock Timeout (SCL cumulative Timeout detection). 
void I2C_SlaveAddressConfig(I2C_TypeDef *I2Cx, uint16_t Address)
Configures the slave address to be transmitted after start generation. 
void I2C_ClearFlag(I2C_TypeDef *I2Cx, uint32_t I2C_FLAG)
Clears the I2Cx's pending flags. 
void I2C_AcknowledgeConfig(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the specified I2C acknowledge feature. 
void I2C_SoftwareResetCmd(I2C_TypeDef *I2Cx)
Enables or disables the specified I2C software reset. 
void I2C_GenerateSTART(I2C_TypeDef *I2Cx, FunctionalState NewState)
Generates I2Cx communication START condition. 
uint8_t I2C_ReceiveData(I2C_TypeDef *I2Cx)
Returns the most recent received data by the I2Cx peripheral. 
void I2C_TimeoutBConfig(I2C_TypeDef *I2Cx, uint16_t Timeout)
Configures the I2C Bus Timeout B (SCL cumulative Timeout). 
void I2C_PECRequestCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C PEC transmission/reception request. 
void I2C_GenerateSTOP(I2C_TypeDef *I2Cx, FunctionalState NewState)
Generates I2Cx communication STOP condition. 
void I2C_GeneralCallCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C general call mode. 
static I2C_TypeDef * I2Cx
void I2C_StopModeCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C wakeup from stop mode. 
uint32_t I2C_DigitalFilter
uint32_t I2C_AcknowledgedAddress
void I2C_DeInit(I2C_TypeDef *I2Cx)
Deinitializes the I2Cx peripheral registers to their default reset values. 
void I2C_ReloadCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C nbytes reload mode. 
void I2C_OwnAddress2Config(I2C_TypeDef *I2Cx, uint16_t Address, uint8_t Mask)
Configures the I2C slave own address 2 and mask. 
void I2C_SMBusAlertCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C SMBus alert. 
ITStatus I2C_GetITStatus(I2C_TypeDef *I2Cx, uint32_t I2C_IT)
Checks whether the specified I2C interrupt has occurred or not. 
void I2C_StructInit(I2C_InitTypeDef *I2C_InitStruct)
Fills each I2C_InitStruct member with its default value. 
void I2C_Cmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the specified I2C peripheral. 
void I2C_CalculatePEC(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C PEC calculation. 
uint16_t I2C_GetTransferDirection(I2C_TypeDef *I2Cx)
Returns the I2C slave received request. 
uint8_t I2C_GetPEC(I2C_TypeDef *I2Cx)
Returns the I2C PEC. 
void I2C_TransferHandling(I2C_TypeDef *I2Cx, uint16_t Address, uint8_t Number_Bytes, uint32_t ReloadEndMode, uint32_t StartStopMode)
Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set)...
void I2C_Init(I2C_TypeDef *I2Cx, I2C_InitTypeDef *I2C_InitStruct)
Initializes the I2Cx peripheral according to the specified parameters in the I2C_InitStruct. 
void I2C_AutoEndCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C automatic end mode (stop condition is automatically sent when nbytes data...
void I2C_10BitAddressHeaderCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C 10-bit header only mode with read direction. 
void I2C_ClearITPendingBit(I2C_TypeDef *I2Cx, uint32_t I2C_IT)
Clears the I2Cx's interrupt pending bits. 
void I2C_DMACmd(I2C_TypeDef *I2Cx, uint32_t I2C_DMAReq, FunctionalState NewState)
Enables or disables the I2C DMA interface. 
void I2C_DualAddressCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C own address 2. 
I2C Init structure definition. 
void I2C_IdleClockTimeoutCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C Idle Clock Timeout (Bus idle SCL and SDA high detection). ...
void I2C_NumberOfBytesConfig(I2C_TypeDef *I2Cx, uint8_t Number_Bytes)
Configures the number of bytes to be transmitted/received. 
uint16_t I2C_ReadRegister(I2C_TypeDef *I2Cx, uint8_t I2C_Register)
Reads the specified I2C register and returns its value. 
void I2C_MasterRequestConfig(I2C_TypeDef *I2Cx, uint16_t I2C_Direction)
Configures the type of transfer request for the master. 
void I2C_StretchClockCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C Clock stretching. 
void I2C_ITConfig(I2C_TypeDef *I2Cx, uint32_t I2C_IT, FunctionalState NewState)
Enables or disables the specified I2C interrupts. 
void I2C_SlaveByteControlCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C slave byte control. 
FlagStatus I2C_GetFlagStatus(I2C_TypeDef *I2Cx, uint32_t I2C_FLAG)
Checks whether the specified I2C flag is set or not. 
Inter-integrated Circuit Interface. 
void I2C_10BitAddressingModeCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables the I2C 10-bit addressing mode for the master. 
void I2C_SendData(I2C_TypeDef *I2Cx, uint8_t Data)
Sends a data byte through the I2Cx peripheral. 
void I2C_ClockTimeoutCmd(I2C_TypeDef *I2Cx, FunctionalState NewState)
Enables or disables I2C Clock Timeout (SCL Timeout detection). 
uint32_t I2C_AnalogFilter
uint8_t I2C_GetAddressMatched(I2C_TypeDef *I2Cx)
Returns the I2C slave matched address .