Functions
void	UART2_ClearFlag (UART2_Flag_TypeDef UART2_FLAG)
	Clears the UART2 flags.
void	UART2_ClearITPendingBit (UART2_IT_TypeDef UART2_IT)
	Clears the UART2 pending flags.
void	UART2_Cmd (FunctionalState NewState)
	Enable the UART2 peripheral.
void	UART2_DeInit (void)
	Deinitializes the UART peripheral.
FlagStatus	UART2_GetFlagStatus (UART2_Flag_TypeDef UART2_FLAG)
	Checks whether the specified UART2 flag is set or not.
ITStatus	UART2_GetITStatus (UART2_IT_TypeDef UART2_IT)
	Checks whether the specified UART2 interrupt has occurred or not.
void	UART2_Init (uint32_t BaudRate, UART2_WordLength_TypeDef WordLength, UART2_StopBits_TypeDef StopBits, UART2_Parity_TypeDef Parity, UART2_SyncMode_TypeDef SyncMode, UART2_Mode_TypeDef Mode)
	Initializes the UART2 according to the specified parameters.
void	UART2_IrDACmd (FunctionalState NewState)
	Enables or disables the UART2�s IrDA interface.
void	UART2_IrDAConfig (UART2_IrDAMode_TypeDef UART2_IrDAMode)
	Configures the UART2�s IrDA interface.
void	UART2_ITConfig (UART2_IT_TypeDef UART2_IT, FunctionalState NewState)
	Enables or disables the specified UART2 interrupts.
void	UART2_LINBreakDetectionConfig (UART2_LINBreakDetectionLength_TypeDef UART2_LINBreakDetectionLength)
	Sets the UART2 LIN Break detection length.
void	UART2_LINCmd (FunctionalState NewState)
	Enables or disables the UART2 LIN mode.
void	UART2_LINConfig (UART2_LinMode_TypeDef UART2_Mode, UART2_LinAutosync_TypeDef UART2_Autosync, UART2_LinDivUp_TypeDef UART2_DivUp)
	Configure the UART2 peripheral.
uint8_t	UART2_ReceiveData8 (void)
	Returns the most recent received data by the UART2 peripheral.
uint16_t	UART2_ReceiveData9 (void)
	Returns the most recent received data by the UART2 peripheral.
void	UART2_ReceiverWakeUpCmd (FunctionalState NewState)
	Determines if the UART2 is in mute mode or not.
void	UART2_SendBreak (void)
	Transmits break characters.
void	UART2_SendData8 (uint8_t Data)
	Transmits 8 bit data through the UART2 peripheral.
void	UART2_SendData9 (uint16_t Data)
	Transmits 9 bit data through the UART2 peripheral.
void	UART2_SetAddress (uint8_t UART2_Address)
	Sets the address of the UART2 node.
void	UART2_SetGuardTime (uint8_t UART2_GuardTime)
	Sets the specified UART2 guard time.
void	UART2_SetPrescaler (uint8_t UART2_Prescaler)
	Sets the system clock prescaler.
void	UART2_SmartCardCmd (FunctionalState NewState)
	Enables or disables the UART2 Smart Card mode.
void	UART2_SmartCardNACKCmd (FunctionalState NewState)
	Enables or disables NACK transmission.
void	UART2_WakeUpConfig (UART2_WakeUp_TypeDef UART2_WakeUp)
	Selects the UART2 WakeUp method.

Function Documentation

void UART2_ClearFlag ( UART2_Flag_TypeDef UART2_FLAG )

Clears the UART2 flags.

Parameters:

UART2_FLAG

specifies the flag to clear This parameter can be any combination of the following values:

UART2_FLAG_LBDF: LIN Break detection flag.
UART2_FLAG_LHDF: LIN Header detection flag.
UART2_FLAG_LSF: LIN synchrone field flag.
UART2_FLAG_RXNE: Receive data register not empty flag.

Note:

:

PE (Parity error), FE (Framing error), NE (Noise error), OR (OverRun error) and IDLE (Idle line detected) flags are cleared by software sequence: a read operation to UART2_SR register (UART2_GetFlagStatus())followed by a read operation to UART2_DR register(UART2_ReceiveData8() or UART2_ReceiveData9()).

RXNE flag can be also cleared by a read to the UART2_DR register (UART2_ReceiveData8()or UART2_ReceiveData9()).

TC flag can be also cleared by software sequence: a read operation to UART2_SR register (UART2_GetFlagStatus()) followed by a write operation to UART2_DR register (UART2_SendData8() or UART2_SendData9()).

TXE flag is cleared only by a write to the UART2_DR register (UART2_SendData8() or UART2_SendData9()).

SBK flag is cleared during the stop bit of break.
Return values:

None

Definition at line 699 of file stm8s_uart2.c.

References IS_UART2_CLEAR_FLAG_OK, UART2_CR4_LBDF, UART2_CR6_LHDF, UART2_CR6_LSF, UART2_FLAG_LBDF, UART2_FLAG_LHDF, UART2_FLAG_RXNE, and UART2_SR_RXNE.

void UART2_ClearITPendingBit ( UART2_IT_TypeDef UART2_IT )

Clears the UART2 pending flags.

Parameters:

UART2_IT

specifies the pending bit to clear This parameter can be one of the following values:

UART2_IT_LBDF: LIN Break detection interrupt
UART2_IT_LHDF: LIN Header detection interrupt
UART2_IT_RXNE: Receive Data register not empty interrupt.

Note:

PE (Parity error), FE (Framing error), NE (Noise error), OR (OverRun error) and IDLE (Idle line detected) pending bits are cleared by software sequence: a read operation to UART2_SR register (UART2_GetITStatus()) followed by a read operation to UART2_DR register (UART2_ReceiveData8() or UART2_ReceiveData9()).

RXNE pending bit can be also cleared by a read to the UART2_DR register (UART2_ReceiveData8() or UART2_ReceiveData9()).

TC (Transmit complete) pending bit can be cleared by software sequence: a read operation to UART2_SR register (UART2_GetITStatus()) followed by a write operation to UART2_DR register (UART2_SendData8()or UART2_SendData9()).

TXE pending bit is cleared only by a write to the UART2_DR register (UART2_SendData8() or UART2_SendData9()).
Return values:

None

Definition at line 852 of file stm8s_uart2.c.

References IS_UART2_CLEAR_IT_OK, UART2_CR4_LBDF, UART2_CR6_LHDF, UART2_IT_LBDF, UART2_IT_RXNE, and UART2_SR_RXNE.

void UART2_Cmd ( FunctionalState NewState )

Enable the UART2 peripheral.

Parameters:

NewState : The new state of the UART Communication. This parameter can be any of the FunctionalState enumeration.

Return values:

None

Definition at line 181 of file stm8s_uart2.c.

References DISABLE, and UART2_CR1_UARTD.

void UART2_DeInit ( void )

Deinitializes the UART peripheral.

Parameters:

None

Return values:

None

Definition at line 53 of file stm8s_uart2.c.

References UART2_BRR1_RESET_VALUE, UART2_BRR2_RESET_VALUE, UART2_CR1_RESET_VALUE, UART2_CR2_RESET_VALUE, UART2_CR3_RESET_VALUE, UART2_CR4_RESET_VALUE, UART2_CR5_RESET_VALUE, and UART2_CR6_RESET_VALUE.

FlagStatus UART2_GetFlagStatus ( UART2_Flag_TypeDef UART2_FLAG )

Checks whether the specified UART2 flag is set or not.

Parameters:

UART2_FLAG specifies the flag to check. This parameter can be any of the UART2_Flag_TypeDef enumeration.

Return values:

FlagStatus (SET or RESET)

Definition at line 606 of file stm8s_uart2.c.

References IS_UART2_FLAG_OK, RESET, SET, UART2_FLAG_LBDF, UART2_FLAG_LHDF, UART2_FLAG_LSF, and UART2_FLAG_SBK.

ITStatus UART2_GetITStatus ( UART2_IT_TypeDef UART2_IT )

Checks whether the specified UART2 interrupt has occurred or not.

Parameters:

UART2_IT,:

Specifies the UART2 interrupt pending bit to check. This parameter can be one of the following values:

UART2_IT_LBDF: LIN Break detection interrupt
UART2_IT_TXE: Transmit Data Register empty interrupt
UART2_IT_TC: Transmission complete interrupt
UART2_IT_RXNE: Receive Data register not empty interrupt
UART2_IT_IDLE: Idle line detection interrupt
UART2_IT_OR: OverRun Error interrupt
UART2_IT_PE: Parity Error interrupt

Return values:

The	state of UART2_IT (SET or RESET).

Definition at line 738 of file stm8s_uart2.c.

References IS_UART2_GET_IT_OK, RESET, SET, UART2_IT_LBDF, UART2_IT_LHDF, and UART2_IT_PE.

void UART2_Init	(	uint32_t	BaudRate,
		UART2_WordLength_TypeDef	WordLength,
		UART2_StopBits_TypeDef	StopBits,
		UART2_Parity_TypeDef	Parity,
		UART2_SyncMode_TypeDef	SyncMode,
		UART2_Mode_TypeDef	Mode
	)

Initializes the UART2 according to the specified parameters.

Parameters:

BaudRate,:	The baudrate.
WordLength	: This parameter can be any of the UART2_WordLength_TypeDef enumeration.
StopBits,:	This parameter can be any of the UART2_StopBits_TypeDef enumeration.
Parity,:	This parameter can be any of the UART2_Parity_TypeDef enumeration.
SyncMode,:	This parameter can be any of the UART2_SyncMode_TypeDef values.
Mode,:	This parameter can be any of the UART2_Mode_TypeDef values

Return values:

None

Definition at line 85 of file stm8s_uart2.c.

References CLK_GetClockFreq(), IS_UART2_BAUDRATE_OK, IS_UART2_MODE_OK, IS_UART2_PARITY_OK, IS_UART2_STOPBITS_OK, IS_UART2_SYNCMODE_OK, IS_UART2_WORDLENGTH_OK, UART2_BRR1_DIVM, UART2_BRR2_DIVF, UART2_BRR2_DIVM, UART2_CR1_M, UART2_CR1_PCEN, UART2_CR1_PS, UART2_CR2_REN, UART2_CR2_TEN, UART2_CR3_CKEN, UART2_CR3_CPHA, UART2_CR3_CPOL, UART2_CR3_LBCL, UART2_CR3_STOP, UART2_MODE_RX_ENABLE, UART2_MODE_TX_ENABLE, and UART2_SYNCMODE_CLOCK_DISABLE.

void UART2_IrDACmd ( FunctionalState NewState )

Enables or disables the UART2�s IrDA interface.

Parameters:

NewState new state of the IrDA mode. This parameter can be: ENABLE or DISABLE.

Return values:

None

Definition at line 292 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and UART2_CR5_IREN.

void UART2_IrDAConfig ( UART2_IrDAMode_TypeDef UART2_IrDAMode )

Configures the UART2�s IrDA interface.

Parameters:

UART2_IrDAMode specifies the IrDA mode. This parameter can be any of the UART2_IrDAMode_TypeDef values.

Return values:

None

Definition at line 272 of file stm8s_uart2.c.

References IS_UART2_IRDAMODE_OK, UART2_CR5_IRLP, and UART2_IRDAMODE_NORMAL.

void UART2_ITConfig	(	UART2_IT_TypeDef	UART2_IT,
		FunctionalState	NewState
	)

Enables or disables the specified UART2 interrupts.

Parameters:

UART2_IT

specifies the UART2 interrupt sources to be enabled or disabled. This parameter can be one of the following values:

UART2_IT_LBDF: LIN Break detection interrupt
UART2_IT_LHDF: LIN Break detection interrupt
UART2_IT_TXE: Transmit Data Register empty interrupt
UART2_IT_TC: Transmission complete interrupt
UART2_IT_RXNE_OR: Receive Data register not empty/Over run error interrupt
UART2_IT_IDLE: Idle line detection interrupt
UART2_IT_PE: Parity Error interrupt

NewState new state of the specified UART2 interrupts. This parameter can be: ENABLE or DISABLE.

Return values:

None

Definition at line 210 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and IS_UART2_CONFIG_IT_OK.

void UART2_LINBreakDetectionConfig ( UART2_LINBreakDetectionLength_TypeDef UART2_LINBreakDetectionLength )

Sets the UART2 LIN Break detection length.

Parameters:

UART2_LINBreakDetectionLength specifies the LIN break detection length. This parameter can be any of the UART2_LINBreakDetectionLength_TypeDef values.

Return values:

None

Definition at line 316 of file stm8s_uart2.c.

References IS_UART2_LINBREAKDETECTIONLENGTH_OK, UART2_CR4_LBDL, and UART2_LINBREAKDETECTIONLENGTH_10BITS.

void UART2_LINCmd ( FunctionalState NewState )

Enables or disables the UART2 LIN mode.

Parameters:

NewState is new state of the UART2 LIN mode. This parameter can be ENABLE or DISABLE

Return values:

None

Definition at line 384 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and UART2_CR3_LINEN.

void UART2_LINConfig	(	UART2_LinMode_TypeDef	UART2_Mode,
		UART2_LinAutosync_TypeDef	UART2_Autosync,
		UART2_LinDivUp_TypeDef	UART2_DivUp
	)

Configure the UART2 peripheral.

Parameters:

UART2_Mode	specifies the LIN mode. This parameter can be any of the UART2_LinMode_TypeDef values.
UART2_Autosync	specifies the LIN automatic resynchronization mode. This parameter can be any of the UART2_LinAutosync_TypeDef values.
UART2_DivUp	specifies the LIN divider update method. This parameter can be any of the UART2_LinDivUp_TypeDef values.

Return values:

None

Definition at line 341 of file stm8s_uart2.c.

References IS_UART2_AUTOSYNC_OK, IS_UART2_DIVUP_OK, IS_UART2_SLAVE_OK, UART2_CR6_LASE, UART2_CR6_LDUM, UART2_CR6_LSLV, UART2_LIN_AUTOSYNC_DISABLE, UART2_LIN_DIVUP_LBRR1, and UART2_LIN_MODE_MASTER.

uint8_t UART2_ReceiveData8 ( void )

Returns the most recent received data by the UART2 peripheral.

Parameters:

None

Return values:

Received Data

Definition at line 487 of file stm8s_uart2.c.

uint16_t UART2_ReceiveData9 ( void )

Returns the most recent received data by the UART2 peripheral.

Parameters:

None

Return values:

Received Data

Definition at line 497 of file stm8s_uart2.c.

References UART2_CR1_R8.

void UART2_ReceiverWakeUpCmd ( FunctionalState NewState )

Determines if the UART2 is in mute mode or not.

Parameters:

NewState,: new state of the UART2 mode. This parameter can be ENABLE or DISABLE

Return values:

None

Definition at line 466 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and UART2_CR2_RWU.

void UART2_SendBreak ( void )

Transmits break characters.

Parameters:

None

Return values:

None

Definition at line 539 of file stm8s_uart2.c.

References UART2_CR2_SBK.

void UART2_SendData8 ( uint8_t Data )

Transmits 8 bit data through the UART2 peripheral.

Parameters:

Data,: the data to transmit.

Return values:

None

Definition at line 511 of file stm8s_uart2.c.

void UART2_SendData9 ( uint16_t Data )

Transmits 9 bit data through the UART2 peripheral.

Parameters:

Data,: the data to transmit.

Return values:

None

Definition at line 522 of file stm8s_uart2.c.

References UART2_CR1_T8.

void UART2_SetAddress ( uint8_t UART2_Address )

Sets the address of the UART2 node.

Parameters:

UART2_Address,: Indicates the address of the UART2 node.

Return values:

None

Definition at line 549 of file stm8s_uart2.c.

References IS_UART2_ADDRESS_OK, and UART2_CR4_ADD.

void UART2_SetGuardTime ( uint8_t UART2_GuardTime )

Sets the specified UART2 guard time.

Note:: SmartCard Mode should be Enabled

Parameters:

UART2_GuardTime,: specifies the guard time.

Return values:

None

Definition at line 566 of file stm8s_uart2.c.

void UART2_SetPrescaler ( uint8_t UART2_Prescaler )

Sets the system clock prescaler.

Note:: IrDA Low Power mode or smartcard mode should be enabled; This function is related to SmartCard and IrDa mode.

Parameters:

UART2_Prescaler,: specifies the prescaler clock. This parameter can be one of the following values:

IrDA Low Power Mode

The clock source is divided by the value given in the register (8 bits)

0000 0000 Reserved
0000 0001 divides the clock source by 1
0000 0010 divides the clock source by 2
...

Smart Card Mode

The clock source is divided by the value given in the register (5 significant bits) multiped by 2

0 0000 Reserved
0 0001 divides the clock source by 2
0 0010 divides the clock source by 4
0 0011 divides the clock source by 6
...

Return values:

None

Definition at line 594 of file stm8s_uart2.c.

void UART2_SmartCardCmd ( FunctionalState NewState )

Enables or disables the UART2 Smart Card mode.

Parameters:

NewState,: new state of the Smart Card mode. This parameter can be: ENABLE or DISABLE.

Return values:

None

Definition at line 406 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and UART2_CR5_SCEN.

void UART2_SmartCardNACKCmd ( FunctionalState NewState )

Enables or disables NACK transmission.

Parameters:

NewState,: new state of the Smart Card mode. This parameter can be: ENABLE or DISABLE.

Return values:

None

Definition at line 429 of file stm8s_uart2.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and UART2_CR5_NACK.

void UART2_WakeUpConfig ( UART2_WakeUp_TypeDef UART2_WakeUp )

Selects the UART2 WakeUp method.

Parameters:

UART2_WakeUp,: specifies the UART2 wakeup method. This parameter can be any of the UART2_WakeUp_TypeDef values.

Return values:

None

Definition at line 452 of file stm8s_uart2.c.

References IS_UART2_WAKEUP_OK, and UART2_CR1_WAKE.

STM8S/A Standard Peripherals Drivers: UART2_Public_Functions

STM8S/A

Functions

Function Documentation

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