Initialization and de-initialization functions

Functions
uint32_t	LL_I2C_DeInit (I2C_TypeDef *I2Cx)
	De-initialize the I2C registers to their default reset values.
uint32_t	LL_I2C_Init (I2C_TypeDef *I2Cx, LL_I2C_InitTypeDef *I2C_InitStruct)
	Initialize the I2C registers according to the specified parameters in I2C_InitStruct.
void	LL_I2C_StructInit (LL_I2C_InitTypeDef *I2C_InitStruct)
	Set each LL_I2C_InitTypeDef field to default value.

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Function Documentation

uint32_t LL_I2C_DeInit

(

I2C_TypeDef *

I2Cx

)

De-initialize the I2C registers to their default reset values.

Parameters:

I2Cx	I2C Instance.

Return values:

An	ErrorStatus enumeration value: SUCCESS: I2C registers are de-initialized ERROR: I2C registers are not de-initialized

Definition at line 111 of file stm32f4xx_ll_i2c.c.

References assert_param, LL_APB1_GRP1_ForceReset(), LL_APB1_GRP1_PERIPH_I2C1, LL_APB1_GRP1_PERIPH_I2C2, LL_APB1_GRP1_PERIPH_I2C3, and LL_APB1_GRP1_ReleaseReset().

uint32_t LL_I2C_Init	(	I2C_TypeDef *	I2Cx,
		LL_I2C_InitTypeDef *	I2C_InitStruct
	)

Initialize the I2C registers according to the specified parameters in I2C_InitStruct.

Parameters:

I2Cx	I2C Instance.
I2C_InitStruct	pointer to a LL_I2C_InitTypeDef structure.

Return values:

An	ErrorStatus enumeration value: SUCCESS: I2C registers are initialized ERROR: Not applicable

Definition at line 161 of file stm32f4xx_ll_i2c.c.

References LL_I2C_InitTypeDef::AnalogFilter, assert_param, LL_I2C_InitTypeDef::ClockSpeed, LL_I2C_InitTypeDef::DigitalFilter, LL_I2C_InitTypeDef::DutyCycle, IS_LL_I2C_ANALOG_FILTER, IS_LL_I2C_CLOCK_SPEED, IS_LL_I2C_DIGITAL_FILTER, IS_LL_I2C_DUTY_CYCLE, IS_LL_I2C_OWN_ADDRESS1, IS_LL_I2C_OWN_ADDRSIZE, IS_LL_I2C_PERIPHERAL_MODE, IS_LL_I2C_TYPE_ACKNOWLEDGE, LL_I2C_AcknowledgeNextData(), LL_I2C_ConfigFilters(), LL_I2C_ConfigSpeed(), LL_I2C_Disable(), LL_I2C_Enable(), LL_I2C_SetMode(), LL_I2C_SetOwnAddress1(), LL_RCC_GetSystemClocksFreq(), LL_I2C_InitTypeDef::OwnAddress1, LL_I2C_InitTypeDef::OwnAddrSize, LL_RCC_ClocksTypeDef::PCLK1_Frequency, LL_I2C_InitTypeDef::PeripheralMode, and LL_I2C_InitTypeDef::TypeAcknowledge.

void LL_I2C_StructInit

(

LL_I2C_InitTypeDef *

I2C_InitStruct

)

Set each LL_I2C_InitTypeDef field to default value.

Parameters:

I2C_InitStruct

Pointer to a LL_I2C_InitTypeDef structure.

Return values:

None

Definition at line 234 of file stm32f4xx_ll_i2c.c.

References LL_I2C_InitTypeDef::AnalogFilter, LL_I2C_InitTypeDef::ClockSpeed, LL_I2C_InitTypeDef::DigitalFilter, LL_I2C_InitTypeDef::DutyCycle, LL_I2C_ANALOGFILTER_ENABLE, LL_I2C_DUTYCYCLE_2, LL_I2C_MODE_I2C, LL_I2C_NACK, LL_I2C_OWNADDRESS1_7BIT, LL_I2C_InitTypeDef::OwnAddress1, LL_I2C_InitTypeDef::OwnAddrSize, LL_I2C_InitTypeDef::PeripheralMode, and LL_I2C_InitTypeDef::TypeAcknowledge.