ST STM32F31xx User Manual

UM1581
Serial peripheral interface (SPI)
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20.2.7.14 SPI_SSOutputCmd
Function Name
void SPI_SSOutputCmd ( SPI_TypeDef * SPIx,
FunctionalState NewState)
Function Description
Enables or disables the SS output for the selected SPI.
Parameters
 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.
 NewState : new state of the SPIx SS output. This parameter
can be: ENABLE or DISABLE.
Return values
 None.
Notes
 This function can be called only after the SPI_Init() function
has been called and the NSS hardware management mode is
selected.
20.2.7.15 SPI_NSSPulseModeCmd
Function Name
void SPI_NSSPulseModeCmd ( SPI_TypeDef * SPIx,
FunctionalState NewState)
Function Description
Enables or disables the NSS pulse management mode.
Parameters
 SPIx : where x can be 1, 2 or 3 to select the SPI peripheral.
 NewState : new state of the NSS pulse management mode.
This parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 This function can be called only after the SPI_Init() function
has been called.
 When TI mode is selected, the control bits NSSP is not taken
into consideration and are configured by hardware
respectively to the TI mode requirements.

ST STM32F31xx Specifications

General

Brand	ST
Model	STM32F31xx
Category	Microcontrollers
Language	English