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UM1581

Serial peripheral interface (SPI)

DocID023800 Rev 1

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20.2.7.10 SPI_RxFIFOThresholdConfig

Function Name

void SPI_RxFIFOThresholdConfig ( SPI_TypeDef * SPIx,

uint16_t SPI_RxFIFOThreshold)

Function Description

Configures the FIFO reception threshold for the selected SPI.

Parameters

 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.

 SPI_RxFIFOThreshold : specifies the FIFO reception

threshold. This parameter can be one of the following values:

 SPI_RxFIFOThreshold_HF : RXNE event is generated

if the FIFO level is greater or equal to 1/2.

 SPI_RxFIFOThreshold_QF : RXNE event is generated

if the FIFO level is greater or equal to 1/4.

Return values

 None.

Notes

 None.

20.2.7.11 SPI_BiDirectionalLineConfig

Function Name

void SPI_BiDirectionalLineConfig ( SPI_TypeDef * SPIx,

uint16_t SPI_Direction)

Function Description

Selects the data transfer direction in bidirectional mode for the

specified SPI.

Parameters

 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.

 SPI_Direction : specifies the data transfer direction in

bidirectional mode. This parameter can be one of the

following values:

 SPI_Direction_Tx : Selects Tx transmission direction

 SPI_Direction_Rx : Selects Rx receive direction

Return values

 None.

Notes

 None.

ST STM32F31xx User Manual

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