ST STM32F2 User Manual

UM1940
LL SPI Generic Driver
DocID028236 Rev 2
1131/1371
Return values
Returned: value can be one of the following values:
LL_SPI_LSB_FIRST
LL_SPI_MSB_FIRST
Reference Manual to
LL API cross
reference:
CR1 LSBFIRST LL_SPI_GetTransferBitOrder
LL_SPI_SetTransferDirection
Function name
__STATIC_INLINE void LL_SPI_SetTransferDirection
(SPI_TypeDef * SPIx, uint32_t TransferDirection)
Function description
Set transfer direction mode.
Parameters
SPIx: SPI Instance
TransferDirection: This parameter can be one of the
following values:
LL_SPI_FULL_DUPLEX
LL_SPI_SIMPLEX_RX
LL_SPI_HALF_DUPLEX_RX
LL_SPI_HALF_DUPLEX_TX
Return values
None:
Notes
For Half-Duplex mode, Rx Direction is set by default. In
master mode, the MOSI pin is used and in slave mode, the
MISO pin is used for Half-Duplex.
Reference Manual to
LL API cross
reference:
CR1 RXONLY LL_SPI_SetTransferDirection
CR1 BIDIMODE LL_SPI_SetTransferDirection
CR1 BIDIOE LL_SPI_SetTransferDirection
LL_SPI_GetTransferDirection
Function name
__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection
(SPI_TypeDef * SPIx)
Function description
Get transfer direction mode.
Parameters
SPIx: SPI Instance
Return values
Returned: value can be one of the following values:
LL_SPI_FULL_DUPLEX
LL_SPI_SIMPLEX_RX
LL_SPI_HALF_DUPLEX_RX
LL_SPI_HALF_DUPLEX_TX
Reference Manual to
LL API cross
reference:
CR1 RXONLY LL_SPI_GetTransferDirection
CR1 BIDIMODE LL_SPI_GetTransferDirection
CR1 BIDIOE LL_SPI_GetTransferDirection
LL_SPI_SetDataWidth
Function name
__STATIC_INLINE void LL_SPI_SetDataWidth (SPI_TypeDef *
SPIx, uint32_t DataWidth)
Function description
Set frame data width.

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English