STM32F4 Standard Peripheral bibliotheek
1.0
ST Microelectronics bibliotheek documentatie voor de STM32F4 Standard Peripheral Library
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Half-duplex mode function. More...
Functions | |
void | USART_HalfDuplexCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
Enables or disables the USART's Half Duplex communication. More... | |
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: 1. Program the Baud rate, Word length, Stop bits, Parity, Mode transmitter or Mode receiver and hardware flow control values using the USART_Init() function. 2. Configures the USART address using the USART_SetAddress() function. 3. Enable the USART using the USART_Cmd() function. 4. Enable the half duplex mode using USART_HalfDuplexCmd() function. @note The RX pin is no longer used @note 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.
void USART_HalfDuplexCmd | ( | USART_TypeDef * | USARTx, |
FunctionalState | NewState | ||
) |
Enables or disables the USART's Half Duplex communication.
USARTx,: | where x can be 1, 2, 3, 4, 5 or 6 to select the USART or UART peripheral. |
NewState,: | new state of the USART Communication. This parameter can be: ENABLE or DISABLE. |
None |