Halfduplex mode function

Half-duplex mode function. More...

Collaboration diagram for Halfduplex mode function:

Functions
void	USART_HalfDuplexCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's Half Duplex communication. More...

Detailed Description

Half-duplex mode function.

 ===============================================================================
                    ##### Half-duplex mode function #####
 ===============================================================================  
    [..]
    This subsection provides a set of functions allowing to manage the USART 
    Half-duplex communication.
    [..]
    The USART can be configured to follow a single-wire half-duplex protocol where 
    the TX and RX lines are internally connected.
    [..]
    USART Half duplex communication is possible through the following procedure:
      (#) Program the Baud rate, Word length, Stop bits, Parity, Mode transmitter 
          or Mode receiver and hardware flow control values using the USART_Init()
          function.
      (#) Configures the USART address using the USART_SetAddress() function.
      (#) Enable the USART using the USART_Cmd() function.
      (#) Enable the half duplex mode using USART_HalfDuplexCmd() function.


    -@- The RX pin is no longer used
    -@- In Half-duplex mode the following bits must be kept cleared:
      (+@) LINEN and CLKEN bits in the USART_CR2 register.
      (+@) SCEN and IREN bits in the USART_CR3 register.

Function Documentation

void USART_HalfDuplexCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's Half Duplex communication.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART Communication. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 836 of file stm32f4xx_usart.c.