STM8S/A Standard Peripherals Drivers: UART4_Exported_Functions

STM8S/A

STM8S/A Standard Peripherals Drivers
UART4_Exported_Functions

Functions

void UART4_ClearFlag (UART4_Flag_TypeDef UART4_FLAG)
 Clears the UART4 flags.
void UART4_ClearITPendingBit (UART4_IT_TypeDef UART4_IT)
 Clears the UART4 pending flags.
void UART4_Cmd (FunctionalState NewState)
 Enable the UART4 peripheral.
void UART4_DeInit (void)
 Deinitializes the UART peripheral.
FlagStatus UART4_GetFlagStatus (UART4_Flag_TypeDef UART4_FLAG)
 Checks whether the specified UART4 flag is set or not.
ITStatus UART4_GetITStatus (UART4_IT_TypeDef UART4_IT)
 Checks whether the specified UART4 interrupt has occurred or not.
void UART4_HalfDuplexCmd (FunctionalState NewState)
 Enables or disables the UART�s Half Duplex communication.
void UART4_Init (uint32_t BaudRate, UART4_WordLength_TypeDef WordLength, UART4_StopBits_TypeDef StopBits, UART4_Parity_TypeDef Parity, UART4_SyncMode_TypeDef SyncMode, UART4_Mode_TypeDef Mode)
 Initializes the UART4 according to the specified parameters.
void UART4_IrDACmd (FunctionalState NewState)
 Enables or disables the UART4�s IrDA interface.
void UART4_IrDAConfig (UART4_IrDAMode_TypeDef UART4_IrDAMode)
 Configures the UART4�s IrDA interface.
void UART4_ITConfig (UART4_IT_TypeDef UART4_IT, FunctionalState NewState)
 Enables or disables the specified UART4 interrupts.
void UART4_LINBreakDetectionConfig (UART4_LINBreakDetectionLength_TypeDef UART4_LINBreakDetectionLength)
 Sets the UART4 LIN Break detection length.
void UART4_LINCmd (FunctionalState NewState)
 Enables or disables the UART4 LIN mode.
void UART4_LINConfig (UART4_LinMode_TypeDef UART4_Mode, UART4_LinAutosync_TypeDef UART4_Autosync, UART4_LinDivUp_TypeDef UART4_DivUp)
 Configure the UART4 peripheral.
uint8_t UART4_ReceiveData8 (void)
 Returns the most recent received data by the UART4 peripheral.
uint16_t UART4_ReceiveData9 (void)
 Returns the most recent received data by the UART4 peripheral.
void UART4_ReceiverWakeUpCmd (FunctionalState NewState)
 Determines if the UART4 is in mute mode or not.
void UART4_SendBreak (void)
 Transmits break characters.
void UART4_SendData8 (uint8_t Data)
 Transmits 8 bit data through the UART4 peripheral.
void UART4_SendData9 (uint16_t Data)
 Transmits 9 bit data through the UART4 peripheral.
void UART4_SetAddress (uint8_t UART4_Address)
 Sets the address of the UART4 node.
void UART4_SetGuardTime (uint8_t UART4_GuardTime)
 Sets the specified UART4 guard time.
void UART4_SetPrescaler (uint8_t UART4_Prescaler)
 Sets the system clock prescaler.
void UART4_SmartCardCmd (FunctionalState NewState)
 Enables or disables the UART4 Smart Card mode.
void UART4_SmartCardNACKCmd (FunctionalState NewState)
 Enables or disables NACK transmission.
void UART4_WakeUpConfig (UART4_WakeUp_TypeDef UART4_WakeUp)
 Selects the UART4 WakeUp method.

Function Documentation

void UART4_ClearFlag ( UART4_Flag_TypeDef  UART4_FLAG)

Clears the UART4 flags.

Parameters:
UART4_FLAGspecifies the flag to clear This parameter can be any combination of the following values:
  • UART4_FLAG_LBDF: LIN Break detection flag.
  • UART4_FLAG_LHDF: LIN Header detection flag.
  • UART4_FLAG_LSF: LIN synchrone field flag.
  • UART4_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 UART4_SR register (UART4_GetFlagStatus())followed by a read operation to UART4_DR register(UART4_ReceiveData8() or UART4_ReceiveData9()).
  • SBK flag is cleared during the stop bit of break.
    Return values:
    None

Definition at line 719 of file stm8s_uart4.c.

References IS_UART4_CLEAR_FLAG_OK, UART4_FLAG_LBDF, UART4_FLAG_LHDF, and UART4_FLAG_RXNE.

void UART4_ClearITPendingBit ( UART4_IT_TypeDef  UART4_IT)

Clears the UART4 pending flags.

Parameters:
UART4_ITspecifies the pending bit to clear This parameter can be one of the following values:
  • UART4_IT_LBDF: LIN Break detection interrupt
  • UART4_IT_LHDF: LIN Header detection interrupt
  • UART4_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 UART4_SR register (UART4_GetITStatus()) followed by a read operation to UART4_DR register (UART4_ReceiveData8() or UART4_ReceiveData9()).

Definition at line 872 of file stm8s_uart4.c.

References IS_UART4_CLEAR_IT_OK, UART4_IT_LBDF, and UART4_IT_RXNE.

void UART4_Cmd ( FunctionalState  NewState)

Enable the UART4 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_uart4.c.

References DISABLE.

void UART4_DeInit ( void  )

Deinitializes the UART peripheral.

Parameters:
None
Return values:
None

Definition at line 53 of file stm8s_uart4.c.

FlagStatus UART4_GetFlagStatus ( UART4_Flag_TypeDef  UART4_FLAG)

Checks whether the specified UART4 flag is set or not.

Parameters:
UART4_FLAGspecifies the flag to check. This parameter can be any of the UART4_Flag_TypeDef enumeration.
Return values:
FlagStatus(SET or RESET)

Definition at line 626 of file stm8s_uart4.c.

References IS_UART4_FLAG_OK, RESET, SET, UART4_FLAG_LBDF, UART4_FLAG_LHDF, UART4_FLAG_LSF, and UART4_FLAG_SBK.

ITStatus UART4_GetITStatus ( UART4_IT_TypeDef  UART4_IT)

Checks whether the specified UART4 interrupt has occurred or not.

Parameters:
UART4_IT,:Specifies the UART4 interrupt pending bit to check. This parameter can be one of the following values:
  • UART4_IT_LBDF: LIN Break detection interrupt
  • UART4_IT_TXE: Transmit Data Register empty interrupt
  • UART4_IT_TC: Transmission complete interrupt
  • UART4_IT_RXNE: Receive Data register not empty interrupt
  • UART4_IT_IDLE: Idle line detection interrupt
  • UART4_IT_OR: OverRun Error interrupt
  • UART4_IT_PE: Parity Error interrupt
Return values:
Thestate of UART4_IT (SET or RESET).

Definition at line 758 of file stm8s_uart4.c.

References IS_UART4_GET_IT_OK, RESET, SET, UART4_IT_LBDF, UART4_IT_LHDF, and UART4_IT_PE.

void UART4_HalfDuplexCmd ( FunctionalState  NewState)

Enables or disables the UART�s Half Duplex communication.

Parameters:
NewStatenew state of the UART Communication. This parameter can be: ENABLE or DISABLE.
Return values:
None

< UART4 Half Duplex Enable

< UART4 Half Duplex Disable

Definition at line 272 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_Init ( uint32_t  BaudRate,
UART4_WordLength_TypeDef  WordLength,
UART4_StopBits_TypeDef  StopBits,
UART4_Parity_TypeDef  Parity,
UART4_SyncMode_TypeDef  SyncMode,
UART4_Mode_TypeDef  Mode 
)

Initializes the UART4 according to the specified parameters.

Parameters:
BaudRate,:The baudrate.
WordLength: This parameter can be any of the UART4_WordLength_TypeDef enumeration.
StopBits,:This parameter can be any of the UART4_StopBits_TypeDef enumeration.
Parity,:This parameter can be any of the UART4_Parity_TypeDef enumeration.
SyncMode,:This parameter can be any of the UART4_SyncMode_TypeDef values.
Mode,:This parameter can be any of the UART4_Mode_TypeDef values
Return values:
None

Definition at line 85 of file stm8s_uart4.c.

References CLK_GetClockFreq(), IS_UART4_BAUDRATE_OK, IS_UART4_MODE_OK, IS_UART4_PARITY_OK, IS_UART4_STOPBITS_OK, IS_UART4_SYNCMODE_OK, IS_UART4_WORDLENGTH_OK, UART4_MODE_RX_ENABLE, UART4_MODE_TX_ENABLE, and UART4_SYNCMODE_CLOCK_DISABLE.

void UART4_IrDACmd ( FunctionalState  NewState)

Enables or disables the UART4�s IrDA interface.

Parameters:
NewStatenew state of the IrDA mode. This parameter can be: ENABLE or DISABLE.
Return values:
None

Definition at line 312 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_IrDAConfig ( UART4_IrDAMode_TypeDef  UART4_IrDAMode)

Configures the UART4�s IrDA interface.

Parameters:
UART4_IrDAModespecifies the IrDA mode. This parameter can be any of the UART4_IrDAMode_TypeDef values.
Return values:
None

Definition at line 292 of file stm8s_uart4.c.

References IS_UART4_IRDAMODE_OK, and UART4_IRDAMODE_NORMAL.

void UART4_ITConfig ( UART4_IT_TypeDef  UART4_IT,
FunctionalState  NewState 
)

Enables or disables the specified UART4 interrupts.

Parameters:
UART4_ITspecifies the UART4 interrupt sources to be enabled or disabled. This parameter can be one of the following values:
  • UART4_IT_LBDF: LIN Break detection interrupt
  • UART4_IT_LHDF: LIN Break detection interrupt
  • UART4_IT_TXE: Transmit Data Register empty interrupt
  • UART4_IT_TC: Transmission complete interrupt
  • UART4_IT_RXNE_OR: Receive Data register not empty/Over run error interrupt
  • UART4_IT_IDLE: Idle line detection interrupt
  • UART4_IT_PE: Parity Error interrupt
NewStatenew state of the specified UART4 interrupts. This parameter can be: ENABLE or DISABLE.
Return values:
None

Definition at line 210 of file stm8s_uart4.c.

References DISABLE, IS_FUNCTIONALSTATE_OK, and IS_UART4_CONFIG_IT_OK.

void UART4_LINBreakDetectionConfig ( UART4_LINBreakDetectionLength_TypeDef  UART4_LINBreakDetectionLength)

Sets the UART4 LIN Break detection length.

Parameters:
UART4_LINBreakDetectionLengthspecifies the LIN break detection length. This parameter can be any of the UART4_LINBreakDetectionLength_TypeDef values.
Return values:
None

Definition at line 336 of file stm8s_uart4.c.

References IS_UART4_LINBREAKDETECTIONLENGTH_OK, and UART4_LINBREAKDETECTIONLENGTH_10BITS.

void UART4_LINCmd ( FunctionalState  NewState)

Enables or disables the UART4 LIN mode.

Parameters:
NewStateis new state of the UART4 LIN mode. This parameter can be ENABLE or DISABLE
Return values:
None

Definition at line 404 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_LINConfig ( UART4_LinMode_TypeDef  UART4_Mode,
UART4_LinAutosync_TypeDef  UART4_Autosync,
UART4_LinDivUp_TypeDef  UART4_DivUp 
)

Configure the UART4 peripheral.

Parameters:
UART4_Modespecifies the LIN mode. This parameter can be any of the UART4_LinMode_TypeDef values.
UART4_Autosyncspecifies the LIN automatic resynchronization mode. This parameter can be any of the UART4_LinAutosync_TypeDef values.
UART4_DivUpspecifies the LIN divider update method. This parameter can be any of the UART4_LinDivUp_TypeDef values.
Return values:
None

Definition at line 361 of file stm8s_uart4.c.

References IS_UART4_AUTOSYNC_OK, IS_UART4_DIVUP_OK, IS_UART4_SLAVE_OK, UART4_LIN_AUTOSYNC_DISABLE, UART4_LIN_DIVUP_LBRR1, and UART4_LIN_MODE_MASTER.

uint8_t UART4_ReceiveData8 ( void  )

Returns the most recent received data by the UART4 peripheral.

Parameters:
None
Return values:
ReceivedData

Definition at line 507 of file stm8s_uart4.c.

uint16_t UART4_ReceiveData9 ( void  )

Returns the most recent received data by the UART4 peripheral.

Parameters:
None
Return values:
ReceivedData

Definition at line 517 of file stm8s_uart4.c.

void UART4_ReceiverWakeUpCmd ( FunctionalState  NewState)

Determines if the UART4 is in mute mode or not.

Parameters:
NewState,:new state of the UART4 mode. This parameter can be ENABLE or DISABLE
Return values:
None

Definition at line 486 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_SendBreak ( void  )

Transmits break characters.

Parameters:
None
Return values:
None

Definition at line 559 of file stm8s_uart4.c.

void UART4_SendData8 ( uint8_t  Data)

Transmits 8 bit data through the UART4 peripheral.

Parameters:
Data,:the data to transmit.
Return values:
None

Definition at line 531 of file stm8s_uart4.c.

void UART4_SendData9 ( uint16_t  Data)

Transmits 9 bit data through the UART4 peripheral.

Parameters:
Data,:the data to transmit.
Return values:
None

Definition at line 542 of file stm8s_uart4.c.

void UART4_SetAddress ( uint8_t  UART4_Address)

Sets the address of the UART4 node.

Parameters:
UART4_Address,:Indicates the address of the UART4 node.
Return values:
None

Definition at line 569 of file stm8s_uart4.c.

References IS_UART4_ADDRESS_OK.

void UART4_SetGuardTime ( uint8_t  UART4_GuardTime)

Sets the specified UART4 guard time.

Note:
SmartCard Mode should be Enabled
Parameters:
UART4_GuardTime,:specifies the guard time.
Return values:
None

Definition at line 586 of file stm8s_uart4.c.

void UART4_SetPrescaler ( uint8_t  UART4_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:
UART4_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) multiplied 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 614 of file stm8s_uart4.c.

void UART4_SmartCardCmd ( FunctionalState  NewState)

Enables or disables the UART4 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 426 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_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 449 of file stm8s_uart4.c.

References DISABLE, and IS_FUNCTIONALSTATE_OK.

void UART4_WakeUpConfig ( UART4_WakeUp_TypeDef  UART4_WakeUp)

Selects the UART4 WakeUp method.

Parameters:
UART4_WakeUp,:specifies the UART4 wakeup method. This parameter can be any of the UART4_WakeUp_TypeDef values.
Return values:
None

Definition at line 472 of file stm8s_uart4.c.

References IS_UART4_WAKEUP_OK.

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