DMA transfers management functions. More...

Collaboration diagram for DMA transfers management functions:

Functions
void	I2C_DMACmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Enables or disables the specified I2C DMA requests. More...

void	I2C_DMALastTransferCmd (I2C_TypeDef *I2Cx, FunctionalState NewState)
	Specifies that the next DMA transfer is the last one. More...

uint32_t	I2C_ReadRegister (I2C_TypeDef *I2Cx, uint8_t I2C_Register)
	Reads the specified I2C register and returns its value. More...

Detailed Description

DMA transfers management functions.

I2C registers management functions.

 ===============================================================================
                ##### DMA transfers management functions #####
 ===============================================================================  
  This section provides functions allowing to configure the I2C DMA channels 
  requests.

 ===============================================================================
                ##### I2C registers management functions #####
 ===============================================================================  
    [..] This section provides a functions that allow user the management of 
         I2C registers.

Function Documentation

void I2C_DMACmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Enables or disables the specified I2C DMA requests.

Parameters

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

Return values

None

Definition at line 904 of file stm32f4xx_i2c.c.

void I2C_DMALastTransferCmd	(	I2C_TypeDef *	I2Cx,
		FunctionalState	NewState
	)

Specifies that the next DMA transfer is the last one.

Parameters

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

Return values

None

Definition at line 928 of file stm32f4xx_i2c.c.

uint32_t I2C_ReadRegister	(	I2C_TypeDef *	I2Cx,
		uint8_t	I2C_Register
	)

Reads the specified I2C register and returns its value.

Parameters

I2Cx where x can be 1 or 2 to select the I2C peripheral.

I2C_Register

specifies the register to read. This parameter can be one of the following values:

I2C_Register_CR1: CR1 register.
I2C_Register_CR2: CR2 register.
I2C_Register_OAR1: OAR1 register.
I2C_Register_OAR2: OAR2 register.
I2C_Register_TIMINGR: TIMING register.
I2C_Register_TIMEOUTR: TIMEOUTR register.
I2C_Register_ISR: ISR register.
I2C_Register_ICR: ICR register.
I2C_Register_PECR: PECR register.
I2C_Register_RXDR: RXDR register.
I2C_Register_TXDR: TXDR register.

Return values

The	value of the read register.

Definition at line 1201 of file stm32f30x_i2c.c.

Functions

Detailed Description

Function Documentation