ST STM32F31xx

UM1581
Serial peripheral interface (SPI)
DocID023800 Rev 1
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read operation to SPI_DR register (SPI_I2S_ReceiveData())
followed by a read operation to SPI_SR register
(SPI_I2S_GetFlagStatus()).
 MODF (Mode Fault) flag is cleared by software sequence: a
read/write operation to SPI_SR register
(SPI_I2S_GetFlagStatus()) followed by a write operation to
SPI_CR1 register (SPI_Cmd() to enable the SPI).
20.2.11.6 SPI_I2S_GetITStatus
Function Name
ITStatus SPI_I2S_GetITStatus ( SPI_TypeDef * SPIx, uint8_t
SPI_I2S_IT)
Function Description
Checks whether the specified SPI/I2S interrupt has occurred or
not.
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.
 SPI_I2S_IT : specifies the SPI interrupt source to check. This
parameter can be one of the following values:
 SPI_I2S_IT_TXE : Transmit buffer empty interrupt.
 SPI_I2S_IT_RXNE : Receive buffer not empty interrupt.
 SPI_IT_MODF : Mode Fault interrupt.
 SPI_I2S_IT_OVR : Overrun interrupt.
 I2S_IT_UDR : Underrun interrupt.
 SPI_I2S_IT_FRE : Format Error interrupt.
Return values
 The new state of SPI_I2S_IT (SET or RESET).
Notes
 None.
20.3 SPI Firmware driver defines
20.3.1 SPI
SPI
SPI_BaudRate_Prescaler
 #define: SPI_BaudRatePrescaler_2 ((uint16_t)0x0000)
 #define: SPI_BaudRatePrescaler_4 ((uint16_t)0x0008)