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UM1581

Serial peripheral interface (SPI)

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20.2.8.4 SPI_I2S_ReceiveData16

Function Name

uint16_t SPI_I2S_ReceiveData16 ( SPI_TypeDef * SPIx)

Function Description

Returns the most recent received data by the SPIx peripheral.

Parameters

 SPIx : To select the SPIx/I2Sx peripheral, where x can be: 1,

2 or 3 in SPI mode or 2 or 3 in I2S mode or I2Sxext for I2S full

duplex mode.

Return values

 The value of the received data.

Notes

 None.

20.2.9 Hardware CRC Calculation functions

20.2.9.1 SPI_CRCLengthConfig

Function Name

void SPI_CRCLengthConfig ( SPI_TypeDef * SPIx, uint16_t

SPI_CRCLength)

Function Description

Configures the CRC calculation length for the selected SPI.

Parameters

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

 SPI_CRCLength : specifies the SPI CRC calculation length.

This parameter can be one of the following values:

 SPI_CRCLength_8b : Set CRC Calculation to 8 bits

 SPI_CRCLength_16b : Set CRC Calculation to 16 bits

Return values

 None.

Notes

 None.

ST STM32F31xx User Manual

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