Dma Transfers Management Functions - ST STM32F31xx User Manual

UM1581
Return values
Notes
23.2.16

DMA transfers management functions

23.2.16.1 USART_DMACmd
Function Name
Function Description
Parameters
Return values
Notes
23.2.16.2 USART_DMAReceptionErrorConfig
Function Name
Function Description
Parameters
Universal synchronous asynchronous receiver
de-activation of the DE signal

None.

None.
void USART_DMACmd (
USART_DMAReq, FunctionalState
Enables or disables the USART's DMA interface.

USARTx : Select the USART peripheral. This parameter can
be one of the following values: USART1 or USART2 or
USART3 or UART4.

USART_DMAReq : specifies the DMA request. This
parameter can be any combination of the following values:

USART_DMAReq_Tx :

USART_DMAReq_Rx :

NewState : new state of the DMA Request sources. This
parameter can be: ENABLE or DISABLE.

None.

None.
void USART_DMAReceptionErrorConfig (
USARTx, uint32_t USART_DMAOnError)
Enables or disables the USART's DMA interface when reception
error occurs.

USARTx : Select the USART peripheral. This parameter can
be one of the following values: USART1 or USART2 or
USART3 or UART4.

USART_DMAOnError : specifies the DMA status in case of
reception error. This parameter can be any combination of the
following values:
DocID023800 Rev 1
transmitter (USART)
USART_TypeDef * USARTx, uint32_t
NewState)
USART DMA transmit request
USART DMA receive request
USART_TypeDef *
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