ST STM32F31xx

Inter-integrated circuit interface (I2C)
UM1581
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DocID023800 Rev 1
13.2.13.2 I2C_ReceiveData
Function Name
uint8_t I2C_ReceiveData ( I2C_TypeDef * I2Cx)
Function Description
Returns the most recent received data by the I2Cx peripheral.
Parameters
 I2Cx : where x can be 1 or 2 to select the I2C peripheral.
Return values
 The value of the received data.
Notes
 None.
13.2.14 DMA transfers management functions
13.2.14.1 I2C_DMACmd
Function Name
void I2C_DMACmd ( I2C_TypeDef * I2Cx, uint32_t
I2C_DMAReq, FunctionalState NewState)
Function Description
Enables or disables the I2C DMA interface.
Parameters
 I2Cx : where x can be 1 or 2 to select the I2C peripheral.
 I2C_DMAReq : specifies the I2C DMA transfer request to be
enabled or disabled. This parameter can be any combination
of the following values:
 I2C_DMAReq_Tx : Tx DMA transfer request
 I2C_DMAReq_Rx : Rx DMA transfer request
 NewState : new state of the selected I2C DMA transfer
request. This parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 None.
13.2.15 Interrupts and flags management functions
13.2.15.1 I2C_GetFlagStatus
Function Name
FlagStatus I2C_GetFlagStatus ( I2C_TypeDef * I2Cx, uint32_t
I2C_FLAG)
Function Description
Checks whether the specified I2C flag is set or not.