LL_SPI_InitTypeDef Struct Reference

SPI Init structures definition. More...

#include <stm32f4xx_ll_spi.h>

Data Fields
uint32_t	TransferDirection
uint32_t	Mode
uint32_t	DataWidth
uint32_t	ClockPolarity
uint32_t	ClockPhase
uint32_t	NSS
uint32_t	BaudRate
uint32_t	BitOrder
uint32_t	CRCCalculation
uint32_t	CRCPoly

---

Detailed Description

SPI Init structures definition.

Definition at line 54 of file stm32f4xx_ll_spi.h.

---

Field Documentation

uint32_t LL_SPI_InitTypeDef::BaudRate

Specifies the BaudRate prescaler value which will be used to configure the transmit and receive SCK clock. This parameter can be a value of Baud Rate Prescaler.

Note:

The communication clock is derived from the master clock. The slave clock does not need to be set.

This feature can be modified afterwards using unitary function LL_SPI_SetBaudRatePrescaler().

Definition at line 86 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::BitOrder

Specifies whether data transfers start from MSB or LSB bit. This parameter can be a value of Transmission Bit Order.

This feature can be modified afterwards using unitary function LL_SPI_SetTransferBitOrder().

Definition at line 92 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::ClockPhase

Specifies the clock active edge for the bit capture. This parameter can be a value of Clock Phase.

This feature can be modified afterwards using unitary function LL_SPI_SetClockPhase().

Definition at line 76 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::ClockPolarity

Specifies the serial clock steady state. This parameter can be a value of Clock Polarity.

This feature can be modified afterwards using unitary function LL_SPI_SetClockPolarity().

Definition at line 71 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::CRCCalculation

Specifies if the CRC calculation is enabled or not. This parameter can be a value of CRC Calculation.

This feature can be modified afterwards using unitary functions LL_SPI_EnableCRC() and LL_SPI_DisableCRC().

Definition at line 97 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::CRCPoly

Specifies the polynomial used for the CRC calculation. This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF.

This feature can be modified afterwards using unitary function LL_SPI_SetCRCPolynomial().

Definition at line 102 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::DataWidth

Specifies the SPI data width. This parameter can be a value of Datawidth.

This feature can be modified afterwards using unitary function LL_SPI_SetDataWidth().

Definition at line 66 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::Mode

Specifies the SPI mode (Master/Slave). This parameter can be a value of Operation Mode.

This feature can be modified afterwards using unitary function LL_SPI_SetMode().

Definition at line 61 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::NSS

Specifies whether the NSS signal is managed by hardware (NSS pin) or by software using the SSI bit. This parameter can be a value of Slave Select Pin Mode.

This feature can be modified afterwards using unitary function LL_SPI_SetNSSMode().

Definition at line 81 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

uint32_t LL_SPI_InitTypeDef::TransferDirection

Specifies the SPI unidirectional or bidirectional data mode. This parameter can be a value of Transfer Mode.

This feature can be modified afterwards using unitary function LL_SPI_SetTransferDirection().

Definition at line 56 of file stm32f4xx_ll_spi.h.

Referenced by LL_SPI_Init(), and LL_SPI_StructInit().

---

The documentation for this struct was generated from the following file:

• stm32f4xx_ll_spi.h