STM32F4 Standard Peripheral bibliotheek  1.0
ST Microelectronics bibliotheek documentatie voor de STM32F4 Standard Peripheral Library
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DMA transfers management functions

DMA transfers management functions. More...


void SPI_I2S_DMACmd (SPI_TypeDef *SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState)
 Enables or disables the SPIx/I2Sx DMA interface. More...

Detailed Description

DMA transfers management functions.

                         DMA transfers management functions

Function Documentation

void SPI_I2S_DMACmd ( SPI_TypeDef *  SPIx,
uint16_t  SPI_I2S_DMAReq,
FunctionalState  NewState 

Enables or disables the SPIx/I2Sx DMA interface.

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_DMAReq,:specifies the SPI DMA transfer request to be enabled or disabled. This parameter can be any combination of the following values:
  • SPI_I2S_DMAReq_Tx: Tx buffer DMA transfer request
  • SPI_I2S_DMAReq_Rx: Rx buffer DMA transfer request
NewState,:new state of the selected SPI DMA transfer request. This parameter can be: ENABLE or DISABLE.
Return values