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 .