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 USART_DMACmd (USART_TypeDef *USARTx, uint16_t USART_DMAReq, FunctionalState NewState)
 Enables or disables the USART's DMA interface. More...

Detailed Description

DMA transfers management functions.

                      DMA transfers management functions

Function Documentation

void USART_DMACmd ( USART_TypeDef *  USARTx,
uint16_t  USART_DMAReq,
FunctionalState  NewState 

Enables or disables the USART's DMA interface.

USARTx,:where x can be 1, 2, 3, 4, 5 or 6 to select the USART or UART peripheral.
USART_DMAReq,:specifies the DMA request. This parameter can be any combination of the following values:
  • USART_DMAReq_Tx: USART DMA transmit request
  • USART_DMAReq_Rx: USART DMA receive request
NewState,:new state of the DMA Request sources. This parameter can be: ENABLE or DISABLE.
Return values