Initialization and Configuration functions
[I2C_Private_Functions]

Initialization and Configuration functions. More...

Functions
void	I2C_DeInit (I2C_TypeDef *I2Cx)
	Deinitialize the I2Cx peripheral registers to their default reset values.
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_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_GenerateSTART (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Generates I2Cx communication START condition.
void	I2C_GenerateSTOP (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Generates I2Cx communication STOP condition.
void	I2C_Send7bitAddress (I2C_TypeDef *I2Cx, uint8_t Address, uint8_t I2C_Direction)
	Transmits the address byte to select the slave device.
void	I2C_AcknowledgeConfig (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C acknowledge feature.
void	I2C_OwnAddress2Config (I2C_TypeDef *I2Cx, uint8_t Address)
	Configures the specified I2C own address2.
void	I2C_DualAddressCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C dual addressing mode.
void	I2C_GeneralCallCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C general call feature.
void	I2C_SoftwareResetCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C software reset.
void	I2C_StretchClockCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C Clock stretching.
void	I2C_FastModeDutyCycleConfig (I2C_TypeDef *I2Cx, uint16_t I2C_DutyCycle)
	Selects the specified I2C fast mode duty cycle.
void	I2C_NACKPositionConfig (I2C_TypeDef *I2Cx, uint16_t I2C_NACKPosition)
	Selects the specified I2C NACK position in master receiver mode.
void	I2C_SMBusAlertConfig (I2C_TypeDef *I2Cx, uint16_t I2C_SMBusAlert)
	Drives the SMBusAlert pin high or low for the specified I2C.
void	I2C_ARPCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C ARP.

Detailed Description

Initialization and Configuration functions.

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                   Initialization and Configuration functions
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Function Documentation

void I2C_AcknowledgeConfig	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C acknowledge feature.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C Acknowledgement. This parameter can be: ENABLE or DISABLE.

Return values:

None.

void I2C_ARPCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C ARP.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2Cx ARP. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_Cmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C peripheral.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2Cx peripheral. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_DeInit ( I2C_TypeDef * I2Cx )

Deinitialize the I2Cx peripheral registers to their default reset values.

Parameters:

I2Cx,:

where x can be 1, 2 or 3 to select the I2C peripheral.

Return values:

None

void I2C_DualAddressCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C dual addressing mode.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C dual addressing mode. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_FastModeDutyCycleConfig	(	I2C_TypeDef *	I2Cx,
		uint16_t	I2C_DutyCycle
	)

Selects the specified I2C fast mode duty cycle.

Parameters:

I2Cx,:

where x can be 1, 2 or 3 to select the I2C peripheral.

I2C_DutyCycle,:

specifies the fast mode duty cycle. This parameter can be one of the following values:

I2C_DutyCycle_2: I2C fast mode Tlow/Thigh = 2
I2C_DutyCycle_16_9: I2C fast mode Tlow/Thigh = 16/9

Return values:

None

void I2C_GeneralCallCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C general call feature.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C General call. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_GenerateSTART	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Generates I2Cx communication START condition.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C START condition generation. This parameter can be: ENABLE or DISABLE.

Return values:

None.

void I2C_GenerateSTOP	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Generates I2Cx communication STOP condition.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C STOP condition generation. This parameter can be: ENABLE or DISABLE.

Return values:

None.

void I2C_Init	(	I2C_TypeDef *	I2Cx,
		I2C_InitTypeDef *	I2C_InitStruct
	)

Initializes the I2Cx peripheral according to the specified parameters in the I2C_InitStruct.

Note:: To use the I2C at 400 KHz (in fast mode), the PCLK1 frequency (I2C peripheral input clock) must be a multiple of 10 MHz.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	I2C_InitStruct,:	pointer to a I2C_InitTypeDef structure that contains the configuration information for the specified I2C peripheral.

Return values:

None

void I2C_NACKPositionConfig	(	I2C_TypeDef *	I2Cx,
		uint16_t	I2C_NACKPosition
	)

Selects the specified I2C NACK position in master receiver mode.

Note:: This function is useful in I2C Master Receiver mode when the number of data to be received is equal to 2. In this case, this function should be called (with parameter I2C_NACKPosition_Next) before data reception starts,as described in the 2-byte reception procedure recommended in Reference Manual in Section: Master receiver.

Parameters:

I2Cx,:

where x can be 1, 2 or 3 to select the I2C peripheral.

I2C_NACKPosition,:

specifies the NACK position. This parameter can be one of the following values:

I2C_NACKPosition_Next: indicates that the next byte will be the last received byte.
I2C_NACKPosition_Current: indicates that current byte is the last received byte.

Note:: This function configures the same bit (POS) as I2C_PECPositionConfig() but is intended to be used in I2C mode while I2C_PECPositionConfig() is intended to used in SMBUS mode.

Return values:

None

void I2C_OwnAddress2Config	(	I2C_TypeDef *	I2Cx,
		uint8_t	Address
	)

Configures the specified I2C own address2.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	Address,:	specifies the 7bit I2C own address2.

Return values:

None.

void I2C_Send7bitAddress	(	I2C_TypeDef *	I2Cx,
		uint8_t	Address,
		uint8_t	I2C_Direction
	)

Transmits the address byte to select the slave device.

Parameters:

I2Cx,:

where x can be 1, 2 or 3 to select the I2C peripheral.

Address,:

specifies the slave address which will be transmitted

I2C_Direction,:

specifies whether the I2C device will be a Transmitter or a Receiver. This parameter can be one of the following values

I2C_Direction_Transmitter: Transmitter mode
I2C_Direction_Receiver: Receiver mode

Return values:

None.

void I2C_SMBusAlertConfig	(	I2C_TypeDef *	I2Cx,
		uint16_t	I2C_SMBusAlert
	)

Drives the SMBusAlert pin high or low for the specified I2C.

Parameters:

I2Cx,:

where x can be 1, 2 or 3 to select the I2C peripheral.

I2C_SMBusAlert,:

specifies SMBAlert pin level. This parameter can be one of the following values:

I2C_SMBusAlert_Low: SMBAlert pin driven low
I2C_SMBusAlert_High: SMBAlert pin driven high

Return values:

None

void I2C_SoftwareResetCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C software reset.

Note:: When software reset is enabled, the I2C IOs are released (this can be useful to recover from bus errors).

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2C software reset. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_StretchClockCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C Clock stretching.

Parameters:

	I2Cx,:	where x can be 1, 2 or 3 to select the I2C peripheral.
	NewState,:	new state of the I2Cx Clock stretching. This parameter can be: ENABLE or DISABLE.

Return values:

None

void I2C_StructInit ( I2C_InitTypeDef * I2C_InitStruct )

Fills each I2C_InitStruct member with its default value.

Parameters:

I2C_InitStruct,:

pointer to an I2C_InitTypeDef structure which will be initialized.

Return values:

None

Initialization and Configuration functions [I2C_Private_Functions]

Functions

Detailed Description

Function Documentation

Initialization and Configuration functions
[I2C_Private_Functions]