Initialization and de-initialization functions

Functions
ErrorStatus	LL_SPI_DeInit (SPI_TypeDef *SPIx)
	De-initialize the SPI registers to their default reset values.
ErrorStatus	LL_SPI_Init (SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct)
	Initialize the SPI registers according to the specified parameters in SPI_InitStruct.
void	LL_SPI_StructInit (LL_SPI_InitTypeDef *SPI_InitStruct)
	Set each LL_SPI_InitTypeDef field to default value.

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Function Documentation

ErrorStatus LL_SPI_DeInit

(

SPI_TypeDef *

SPIx

)

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

Parameters:

SPIx	SPI Instance

Return values:

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

Definition at line 139 of file stm32f4xx_ll_spi.c.

References assert_param, LL_APB1_GRP1_ForceReset(), LL_APB1_GRP1_PERIPH_SPI2, LL_APB1_GRP1_PERIPH_SPI3, LL_APB1_GRP1_ReleaseReset(), LL_APB2_GRP1_ForceReset(), LL_APB2_GRP1_PERIPH_SPI1, LL_APB2_GRP1_PERIPH_SPI4, LL_APB2_GRP1_PERIPH_SPI5, LL_APB2_GRP1_PERIPH_SPI6, and LL_APB2_GRP1_ReleaseReset().

Referenced by LL_I2S_DeInit().

ErrorStatus LL_SPI_Init	(	SPI_TypeDef *	SPIx,
		LL_SPI_InitTypeDef *	SPI_InitStruct
	)

Initialize the SPI registers according to the specified parameters in SPI_InitStruct.

Note:

As some bits in SPI configuration registers can only be written when the SPI is disabled (SPI_CR1_SPE bit =0), SPI IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.

Parameters:

SPIx	SPI Instance
SPI_InitStruct	pointer to a LL_SPI_InitTypeDef structure

Return values:

An	ErrorStatus enumeration value. (Return always SUCCESS)

Definition at line 230 of file stm32f4xx_ll_spi.c.

References assert_param, LL_SPI_InitTypeDef::BaudRate, LL_SPI_InitTypeDef::BitOrder, LL_SPI_InitTypeDef::ClockPhase, LL_SPI_InitTypeDef::ClockPolarity, LL_SPI_InitTypeDef::CRCCalculation, LL_SPI_InitTypeDef::CRCPoly, LL_SPI_InitTypeDef::DataWidth, IS_LL_SPI_BAUDRATE, IS_LL_SPI_BITORDER, IS_LL_SPI_CRC_POLYNOMIAL, IS_LL_SPI_CRCCALCULATION, IS_LL_SPI_DATAWIDTH, IS_LL_SPI_MODE, IS_LL_SPI_NSS, IS_LL_SPI_PHASE, IS_LL_SPI_POLARITY, IS_LL_SPI_TRANSFER_DIRECTION, LL_SPI_CRCCALCULATION_ENABLE, LL_SPI_IsEnabled(), LL_SPI_SetCRCPolynomial(), LL_SPI_InitTypeDef::Mode, LL_SPI_InitTypeDef::NSS, SPI_CR1_CLEAR_MASK, and LL_SPI_InitTypeDef::TransferDirection.

void LL_SPI_StructInit

(

LL_SPI_InitTypeDef *

SPI_InitStruct

)

Set each LL_SPI_InitTypeDef field to default value.

Parameters:

SPI_InitStruct

pointer to a LL_SPI_InitTypeDef structure whose fields will be set to default values.

Return values:

None

Definition at line 298 of file stm32f4xx_ll_spi.c.

References LL_SPI_InitTypeDef::BaudRate, LL_SPI_InitTypeDef::BitOrder, LL_SPI_InitTypeDef::ClockPhase, LL_SPI_InitTypeDef::ClockPolarity, LL_SPI_InitTypeDef::CRCCalculation, LL_SPI_InitTypeDef::CRCPoly, LL_SPI_InitTypeDef::DataWidth, LL_SPI_BAUDRATEPRESCALER_DIV2, LL_SPI_CRCCALCULATION_DISABLE, LL_SPI_DATAWIDTH_8BIT, LL_SPI_FULL_DUPLEX, LL_SPI_MODE_SLAVE, LL_SPI_MSB_FIRST, LL_SPI_NSS_HARD_INPUT, LL_SPI_PHASE_1EDGE, LL_SPI_POLARITY_LOW, LL_SPI_InitTypeDef::Mode, LL_SPI_InitTypeDef::NSS, and LL_SPI_InitTypeDef::TransferDirection.