MultiProcessor Communication functions

Multi-Processor Communication functions. More...

Functions
void	USART_SetAddress (USART_TypeDef *USARTx, uint8_t USART_Address)
	Sets the address of the USART node. More...
void	USART_MuteModeCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's mute mode. More...
void	USART_MuteModeWakeUpConfig (USART_TypeDef *USARTx, uint32_t USART_WakeUp)
	Selects the USART WakeUp method from mute mode. More...
void	USART_AddressDetectionConfig (USART_TypeDef *USARTx, uint32_t USART_AddressLength)
	Configure the the USART Address detection length. More...

Detailed Description

Multi-Processor Communication functions.

 ===============================================================================
             ##### Multi-Processor Communication functions #####
 ===============================================================================
    [..] This subsection provides a set of functions allowing to manage the USART
         multiprocessor communication.
    [..] For instance one of the USARTs can be the master, its TX output is
         connected to the RX input of the other USART. The others are slaves,
         their respective TX outputs are logically ANDed together and connected 
         to the RX input of the master. USART multiprocessor communication is 
         possible through the following procedure:
         (#) Program the Baud rate, Word length = 9 bits, 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.
         (#) Configures the wake up methode (USART_WakeUp_IdleLine or 
             USART_WakeUp_AddressMark) using USART_WakeUpConfig() function only 
             for the slaves.
         (#) Enable the USART using the USART_Cmd() function.
         (#) Enter the USART slaves in mute mode using USART_ReceiverWakeUpCmd() 
             function.
    [..] The USART Slave exit from mute mode when receive the wake up condition.

Function Documentation

void USART_AddressDetectionConfig	(	USART_TypeDef *	USARTx,
		uint32_t	USART_AddressLength
	)

Configure the the USART Address detection length.

Parameters

USARTx,:	where x can be 1 or 2 or 3 to select the USART peripheral.
USART_AddressLength,:	specifies the USART address length detection. This parameter can be one of the following values: USART_AddressLength_4b: 4-bit address length detection USART_AddressLength_7b: 7-bit address length detection

Return values

None

void USART_MuteModeCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's mute mode.

Parameters

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

Return values

None

void USART_MuteModeWakeUpConfig	(	USART_TypeDef *	USARTx,
		uint32_t	USART_WakeUp
	)

Selects the USART WakeUp method from mute mode.

Parameters

USARTx,:	where x can be 1 or 2 or 3 to select the USART peripheral.
USART_WakeUp,:	specifies the USART wakeup method. This parameter can be one of the following values: USART_WakeUp_IdleLine: WakeUp by an idle line detection USART_WakeUp_AddressMark: WakeUp by an address mark

Return values

None

void USART_SetAddress	(	USART_TypeDef *	USARTx,
		uint8_t	USART_Address
	)

Sets the address of the USART node.

Parameters

USARTx,:	where x can be 1 or 2 or 3 to select the USART peripheral.
USART_Address,:	Indicates the address of the USART node.

Return values

None