STM32F37 Standard Peripheral bibliotheek  1.0
ST Microelectronics bibliotheek documentatie voor de STM32F37 Standard Peripheral Library
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Halfduplex mode function

Half-duplex mode function. More...


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()
         (#) Configures the USART address using the USART_SetAddress() function.
         (#) Enable the half duplex mode using USART_HalfDuplexCmd() function.
         (#) Enable the USART using the USART_Cmd() 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.

USARTx,:where x can be 1 or 2 or 3 to select the USART peripheral.
NewState,:new state of the USART Communication. This parameter can be: ENABLE or DISABLE.
Return values